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www.swinburne.edu.au<br />
Diabetes hope P7<br />
Solar energy powers on P12<br />
Issue 6 | June 2009<br />
Post<br />
modern<br />
Designer stamps her<br />
cultural identity
www.swinburne.edu.au<br />
Contents<br />
Issue 6 | June 2009<br />
Diabetes hope P7<br />
Solar energy powers on P12<br />
Post<br />
ISSUE 6 | JUNE 2009<br />
modern<br />
Designer stamps her<br />
cultural identity<br />
06<br />
10<br />
swinburne JUne 2009<br />
Swin_0906_p01-24.indd 1 15/05/09 3:33 PM<br />
Upfront<br />
2<br />
Collaboration is the currency<br />
in our knowledge-based economy<br />
Australia’s economic prosperity rests on the important contributions<br />
made by Australian universities – a point highlighted in recent reviews<br />
<strong>of</strong> the Australian Innovation System and higher education. Without<br />
creating knowledge and developing innovative minds we will not thrive<br />
in the 21st century.<br />
<strong>Swinburne</strong> <strong>University</strong> <strong>of</strong> <strong>Technology</strong> is a hands-on partner in striving<br />
for answers to future challenges, by making our graduates knowledgeready<br />
and flexible and by creating new knowledge. Our ability to<br />
generate and accumulate wisdom through groundbreaking and relevant<br />
research is vital. Furthermore, <strong>Swinburne</strong>’s strategic focus has ensured<br />
that this research is recognised as genuinely world-class.<br />
As a dual-sector (TAFE to PhD) institution we are central to the<br />
‘knowledge economy’. Through TAFE we develop the next generation<br />
<strong>of</strong> competency-skilled workers, able to adapt to the rapidly changing<br />
demands <strong>of</strong> the modern workplace. Our Higher Education degree<br />
students develop their expertise and knowledge in a research-intensive<br />
environment. Learning from active, world-class researchers enables our<br />
students to further develop their capacity for independent thought and<br />
innovation. ‘Question Everything’ is heartfelt at <strong>Swinburne</strong> and built into<br />
every undergraduate’s program and consequent outcomes.<br />
Of course, new knowledge is <strong>of</strong> little value unless it is shared and<br />
put to work.<br />
<strong>Swinburne</strong> is the acknowledged home <strong>of</strong> industry-based learning<br />
and this connection to industry flows though to our research and<br />
researchers. For example, <strong>Swinburne</strong>’s participation in the Cooperative<br />
Research Centres (CRC) program – a government-sponsored scheme<br />
that links industry with research providers – is more than double that<br />
usually expected for an institution <strong>of</strong> its size.<br />
We understand that development <strong>of</strong> knowledge in the 21st century<br />
relies on genuine effective partnerships between universities and those<br />
in the position to put that information to best use.<br />
Effective partnerships and collaborations are apparent in many <strong>of</strong> the<br />
articles in this issue <strong>of</strong> <strong>Swinburne</strong> magazine. I hope in reading about some<br />
<strong>of</strong> the exciting research and achievements you too can start thinking about<br />
how we can work together to lift Australia’s economic and social capacities.<br />
Deputy Vice-Chancellor (Research) Pr<strong>of</strong>essor Andrew Flitman<br />
cover story<br />
18 Dani’s journey<br />
across big art on a<br />
small canvas<br />
Born in China and raised<br />
in Hong Kong, Dani Poon<br />
travelled nervously to<br />
Melbourne as a 17-year-old<br />
to stamp Australian art into<br />
her destined way<br />
<br />
Features<br />
Kellie Penfold<br />
03 cloud riders to be the<br />
envy <strong>of</strong> web surfers<br />
<br />
Richard Constantine<br />
04 from the minds<br />
<strong>of</strong> babes a key to<br />
understanding ... us<br />
Australia’s first cognitive<br />
neuroscience ‘baby laboratory’<br />
is hoping to learn how infantile<br />
thoughts and gestures mature<br />
into deliberate action; how the<br />
human brain develops and<br />
sometimes fails<br />
<br />
rebecca thyer<br />
06 Diabetes hope on the<br />
wings <strong>of</strong> silver cicadas<br />
The wings <strong>of</strong> a familiar noisy<br />
insect, the cicada, were the<br />
starting point for a device that will<br />
be able to continuously monitor<br />
blood glucose levels<br />
<br />
Penny Fannin<br />
09 Alloy research cuts<br />
through the fighter<br />
cost barrier<br />
<br />
rebecca thyer<br />
10 All power to the sun<br />
and the light team<br />
Affordable solar power may soon<br />
be just a flick <strong>of</strong> the switch away<br />
<br />
robin taylor<br />
12 Companies find a<br />
competitive green edge<br />
A business environmental<br />
mentoring program is showing<br />
that ‘going green’ can win<br />
customers and pr<strong>of</strong>its<br />
<br />
robin taylor<br />
14 No joke when it’s<br />
survival <strong>of</strong> the funniest<br />
Bianca Nogrady & Rebecca Thyer<br />
15 New environment to<br />
debug global-scale IT<br />
upgrades david adams<br />
16 Dark mysteries lure<br />
cosmic surveyors<br />
A massive survey <strong>of</strong> the universe<br />
is under way in Australia to detect<br />
the faintest <strong>of</strong> echoes: an acoustic<br />
‘wiggle’ from the Big Bang. A<br />
wiggle that may hold the key to<br />
understanding a mysterious new<br />
force – dark energy – that is<br />
causing the universe to fly apart<br />
<br />
Gio Braidotti<br />
20 Digital dust-<strong>of</strong>f for<br />
history’s watchhouses<br />
<br />
Julian Cribb<br />
21 Will the ferryman come<br />
for climate refugees?<br />
<br />
robin taylor<br />
22 A modern-day oracle<br />
on the ocean waves<br />
Like gypsies read tea leaves to<br />
foresee the future, researchers<br />
can read something <strong>of</strong> our future<br />
in the winds and waves. However,<br />
this modern soothsaying relies on<br />
masses <strong>of</strong> information – data that<br />
<strong>Swinburne</strong> is collating to build the<br />
world’s first complete picture <strong>of</strong><br />
ocean wave activity<br />
<br />
Julian Cribb<br />
•• •• •• •• •• •• •• •• •• •• •• •• •• •• •• •• •• •• •• •• •• •• •• •• •• •• •• •• •• •• •• •• •• •• •• •• •• •• •• •• •• •• •• •• •• •• •• •• •• ••<br />
12<br />
16<br />
Published by <strong>Swinburne</strong> <strong>University</strong> <strong>of</strong> <strong>Technology</strong><br />
Editor: Dorothy Albrecht, Director, Marketing Services<br />
Deputy editor: Julianne Camerotto, Communications Manager<br />
(Research and Industry), Marketing Services<br />
<strong>Swinburne</strong> <strong>University</strong> <strong>of</strong> <strong>Technology</strong>, Melbourne<br />
Written, edited, designed and produced on behalf <strong>of</strong> <strong>Swinburne</strong> <strong>University</strong><br />
<strong>of</strong> <strong>Technology</strong> by Coretext, www.coretext.com.au, 03 9670 1168<br />
Enquiries: 1300 MY SWIN (1300 697 946)<br />
Website: www.swinburne.edu.au/magazine<br />
Email: magazine@swinburne.edu.au<br />
Cover photo: Dani Poon photographed by Paul Jones<br />
<strong>Swinburne</strong> <strong>University</strong> <strong>of</strong> <strong>Technology</strong> collects and uses your information in accordance with our<br />
Privacy Statement, which can be found at: www.swinburne.edu.au/privacy.<br />
If you do not wish to receive communications from us, you can email privacyoptout@swinburne.edu.au,<br />
fax (03) 9214 8447, or write to <strong>Swinburne</strong> <strong>University</strong> <strong>of</strong> <strong>Technology</strong>, Privacy at <strong>Swinburne</strong>,<br />
PO Box 218, Hawthorn VIC 3122.<br />
The information contained in this publication was correct at the time <strong>of</strong> going to press, June 2009.<br />
CRICOS provider Code 00111D<br />
ISSN 1835-6516 (Print)<br />
ISSN 1835-6524 (Online)
June 2009 swinburne<br />
Cloud riders<br />
to be the envy <strong>of</strong> web surfers<br />
essay by Richard Constantine*<br />
A quick scan <strong>of</strong> the daily newspaper shows<br />
just how much data-driven information<br />
is being produced these days and how<br />
everyone, from decision-makers in business<br />
and government to scientists and researchers,<br />
is drawing on ever-increasing volumes <strong>of</strong><br />
data to try to solve problems.<br />
However, good decision-making requires<br />
more than just great volumes <strong>of</strong> data, no matter<br />
how accurate and up-to-date it is. Data has to<br />
be carefully mined for the right information,<br />
for the gold to be sifted from the gravel.<br />
Nowhere is data volume more a quality<br />
assurance (QA) issue than at universities,<br />
where researchers, by the very nature <strong>of</strong> their<br />
job, are confronted with vast quantities <strong>of</strong><br />
data from electronic sensors, all manner <strong>of</strong><br />
measuring tools, analytical equipment and<br />
myriad other information streams.<br />
The data that is stored and processed then<br />
forms part <strong>of</strong> a network <strong>of</strong> ‘information banks’,<br />
increasingly accessible to researchers and other<br />
users via the internet. While proximity to an<br />
information bank is no longer an issue, the<br />
ability to access and process information from<br />
any location is still a problem.<br />
The new era that is emerging is ‘cloud<br />
computing’, which allows people to access<br />
s<strong>of</strong>tware applications and their own files<br />
using any internet-connected computer,<br />
anywhere, at any time.<br />
An analogy is the provision <strong>of</strong> essential<br />
services such as electricity, water and gas. The<br />
generation and distribution <strong>of</strong> these services<br />
occurs <strong>of</strong>f-site and the consumer simply needs<br />
to ‘plug in’ to the services concerned to have<br />
them delivered down the line.<br />
All <strong>of</strong> the major IT organisations, such<br />
as IBM, Cisco Systems, Dell, Symantec,<br />
Sun Microsystems, HP and Facebook, as<br />
well as many small organisations, have<br />
already developed their own dedicated<br />
cloud computing divisions to organise the<br />
development, marketing and sales <strong>of</strong> hardware,<br />
s<strong>of</strong>tware and services in this burgeoning area.<br />
Micros<strong>of</strong>t, Google and others have developed<br />
a range <strong>of</strong> web-based applications and,<br />
importantly, web-based storage.<br />
At universities like <strong>Swinburne</strong> <strong>University</strong><br />
<strong>of</strong> <strong>Technology</strong>, students and staff are now<br />
expecting a more flexible and dynamic<br />
IT environment that will cater for them<br />
in moving between campuses, including<br />
photo: paul Jones<br />
<strong>of</strong>fshore campuses, and other locations.<br />
Telecommuting, for part <strong>of</strong> the week at<br />
least, is now a more viable option for many<br />
university staff. Applications such as learning<br />
management systems, student administration<br />
systems, human resources and finance<br />
systems, to name a few, need to be available<br />
anywhere at anytime. Cloud computing or<br />
delivery via the internet is shaping as the<br />
answer to this increasing need for mobility.<br />
A number <strong>of</strong> the basic requirements for<br />
effective cloud computing are already in<br />
place, such as sufficient bandwidth with<br />
reliable, high-speed connectivity and a range<br />
<strong>of</strong> s<strong>of</strong>tware applications already available via<br />
the web.<br />
According to the Australian Bureau<br />
<strong>of</strong> Statistics, 67 per cent <strong>of</strong> Australian<br />
households have home internet access and,<br />
<strong>of</strong> these, more than 43 per cent are highspeed<br />
broadband users. It is likely that the<br />
Australian online experience would be<br />
similar to that in America, where research<br />
undertaken through the Pew Research<br />
Center’s ‘Internet & American Life’ project<br />
has shown that 69 per cent <strong>of</strong> Americans<br />
online now use cloud computing activities.<br />
While the fog is starting to lift to reveal<br />
the true form <strong>of</strong> the cloud, there are still<br />
blurred patches. The most critical element<br />
that is yet to be resolved relates to the remote<br />
storage <strong>of</strong> corporate data. It raises obvious<br />
questions about security, privacy, intellectual<br />
property and reliability <strong>of</strong> access.<br />
Who has jurisdiction over data stored<br />
in remote locations? Do we know what is<br />
happening behind the service boundary?<br />
Who is in control? What processes are in<br />
place to guarantee access to critical data or<br />
files as and when needed? It behoves us all<br />
to ensure that governance arrangements and<br />
contract terms relating to service delivery,<br />
including how the services are accessed, are<br />
fully researched and resolved.<br />
A recent detailed study <strong>of</strong> cloud computing<br />
by the <strong>University</strong> <strong>of</strong> California, Berkeley, has<br />
worked through these issues and identified a<br />
number <strong>of</strong> potential solutions, such as having<br />
multiple cloud-computing providers to ensure<br />
the availability <strong>of</strong> service and access to<br />
critical data. While the authors recognise the<br />
lack <strong>of</strong> clarity at the present time they are still<br />
optimistic for the future <strong>of</strong> cloud computing.<br />
Despite the issues to be resolved, most<br />
indications suggest that it will not be too<br />
long before we won’t just be surfing the<br />
web, we’ll be riding the cloud. ••<br />
* Associate Pr<strong>of</strong>essor Richard Constantine<br />
is <strong>Swinburne</strong> <strong>University</strong> <strong>of</strong> <strong>Technology</strong>’s<br />
Chief Information Officer.<br />
Contact. .<br />
<strong>Swinburne</strong> <strong>University</strong> <strong>of</strong> <strong>Technology</strong><br />
1300 MY SWIN (1300 697 946)<br />
magazine@swinburne.edu.au<br />
www.swinburne.edu.au/magazine<br />
Associate Pr<strong>of</strong>essor<br />
Richard Constantine<br />
Cloud computing<br />
‘Cloud computing’ allows<br />
people to access s<strong>of</strong>tware<br />
applications and their own<br />
files using any internetconnected<br />
computer,<br />
anywhere, at any time.<br />
Commentary<br />
3
swinburne June 2009<br />
neuroscience<br />
4<br />
Australia’s first cognitive neuroscience ‘baby laboratory’ is hoping to learn how<br />
infantile thoughts and gestures mature into deliberate action; how the human brain<br />
develops and sometimes fails By Rebecca Thyer
June 2009 swinburne<br />
Sitting on her mother’s lap with a tiny,<br />
Velcro-covered mitten covering her 11-weekold<br />
hand, Molly reaches for an object that<br />
is similarly covered in Velcro. It’s a simple<br />
move that defies what other babies her age<br />
typically do, which is how young Molly<br />
is helping researchers better understand<br />
developing brain activity.<br />
As a ‘baby scientist’ Molly is helping<br />
researchers at <strong>Swinburne</strong> <strong>University</strong> <strong>of</strong><br />
<strong>Technology</strong>’s Brain Science Institute<br />
learn more about a process called mirror<br />
neuron activity – where the brain mirrors<br />
the activity <strong>of</strong> another person, activating a<br />
neuron response, even though no physical<br />
movement occurs.<br />
Leading the work is Dr Jordy Kaufman,<br />
who moved to Melbourne from the <strong>University</strong><br />
<strong>of</strong> London, Birkbeck, to establish the<br />
<strong>Swinburne</strong> Baby Laboratory in early 2008.<br />
Dr Kaufman says Molly’s involvement in<br />
the lab’s ‘Sticky Mittens’ project is allowing<br />
researchers to explore brain development.<br />
“At three months old babies are not good at<br />
reaching for things, but with practice they<br />
can do something like it. It may look like<br />
they are just swiping or swatting at things,<br />
but they are trying to get the toy.”<br />
Previous US-led research has shown that<br />
babies with ‘sticky mitten’ experience take<br />
more <strong>of</strong> these bold, directive actions – that is,<br />
they grab at objects more than other babies.<br />
Sticky mitten research began about a<br />
decade ago with Pr<strong>of</strong>essor Amy Needham,<br />
who supervised Dr Kaufman’s PhD in her<br />
previous role at Duke <strong>University</strong>.<br />
Now at the Department <strong>of</strong> Psychology<br />
and Human Development at Nashville’s<br />
Vanderbilt <strong>University</strong>, Pr<strong>of</strong>essor Needham<br />
says these types <strong>of</strong> projects help to build<br />
an understanding <strong>of</strong> infant motor skill<br />
development and the changes behind it.<br />
“Development is a complex phenomenon<br />
and we are only now starting to understand<br />
the many ways in which different processes<br />
influence each other as development takes<br />
place,” she says.<br />
Perhaps most importantly for those who<br />
are exploring brain development, is that<br />
babies with a sticky mitten experience also<br />
watch the actions <strong>of</strong> others more closely.<br />
And by carefully watching the actions <strong>of</strong><br />
others, there is the possibility <strong>of</strong> enhanced<br />
brain development, allowing infants to better<br />
interpret other people’s actions.<br />
<strong>Swinburne</strong>’s Dr Kaufman says his sticky<br />
mitten research will monitor this. “We want<br />
to know if giving babies a sticky mitten<br />
experience leads them to show more mirror<br />
neuron activity than those without.”<br />
To answer this question, Dr Kaufman<br />
is studying the brain waves <strong>of</strong> two sets <strong>of</strong><br />
babies: those like Molly who have sticky<br />
mitten experience and those without. In both<br />
cases babies watch their parent grab for an<br />
object while their brain waves are monitored.<br />
“We are essentially finding out more about<br />
the mind’s building blocks.”<br />
The <strong>Swinburne</strong> Baby Laboratory monitors<br />
these brain waves using a non-invasive<br />
electroencephalogram (EEG). It works<br />
in much the same way as a thermometer<br />
measures temperature. A net <strong>of</strong> 128 sensors<br />
is placed over a baby’s head to measure<br />
naturally occurring brain activity. The sensors<br />
capture the electrical signals coming from the<br />
brain while the baby watches objects or listens<br />
to sounds. Dr Kaufman says it is a completely<br />
safe experience for the babies involved and<br />
usually lasts between two and 15 minutes.<br />
The work could also have commercial<br />
ramifications. Dr Andy Bremner, a former<br />
colleague <strong>of</strong> Dr Kaufman’s from the<br />
<strong>University</strong> <strong>of</strong> London, Goldsmiths, says<br />
that because sticky mitten research may<br />
help to explain how active exploratory<br />
experiences drive development, it could<br />
provide toy manufacturers with evidence that<br />
certain educational products are beneficial.<br />
“Currently there is little evidence basis for<br />
any benefit <strong>of</strong> such toys, but this research<br />
could help to provide this.”<br />
That aside, Dr Kaufman says what<br />
drives the <strong>Swinburne</strong> Baby Laboratory is<br />
the ability to provide insight into the minds<br />
<strong>of</strong> infants and young children. Its work has<br />
important ramifications for learning about the<br />
development <strong>of</strong> autism and schizophrenia.<br />
“Understanding how these conditions develop<br />
could lead to more sensitive diagnostic<br />
measures, and therefore earlier intervention.”<br />
One way <strong>of</strong> doing this is to measure how<br />
babies’ brains react to changes in sound, a<br />
perceptual process called ‘change detection’,<br />
Lab delves into our infancy<br />
The <strong>Swinburne</strong> Baby Laboratory is Australia’s first cognitive neuroscience<br />
facility for babies and infants.<br />
It was established in early 2008 by Dr Jordy Kaufman, who became<br />
interested in studying brain development when he undertook a cognitive<br />
science degree at Carnegie Mellon <strong>University</strong> and a PhD at Duke<br />
<strong>University</strong> with Pr<strong>of</strong>essor Amy Needham. His interest then led him to<br />
the UK to work with Pr<strong>of</strong>essor Mark Johnson at the Centre for Brain and<br />
Cognitive Development at the <strong>University</strong> <strong>of</strong> London, Birkbeck.<br />
He wants to find out how the mental world <strong>of</strong> infants differs from that<br />
<strong>of</strong> adults.<br />
“We are more infantile than we think,” he says. “Only 10 to 15 per<br />
cent <strong>of</strong> things we do now are different from what we did then. Yet, the<br />
relationship between brain development and cognitive development in<br />
babies is largely unknown.”<br />
What drives Dr Kaufman is the desire to give scientists and parents<br />
alike a window into this world from which we have all grown. “Almost<br />
all parents at some point wonder what it is that their baby can see, hear,<br />
feel, remember and understand. The <strong>Swinburne</strong> Baby Laboratory was<br />
created to help answer these questions,” he says.<br />
More information<br />
• If you are a parent <strong>of</strong> a baby or child up to 5 years old, you can take part in<br />
research at the <strong>Swinburne</strong> Baby Laboratory by emailing babylab@swin.edu.au<br />
or visiting www.babylab.org<br />
The more we know about the typically<br />
developing brain, the more scientists can<br />
discover markers for atypical development.<br />
which forms the basis <strong>of</strong> another <strong>Swinburne</strong><br />
Baby Laboratory project. “Basically this<br />
means we play some sounds and then change<br />
it and see what their brain waves do.<br />
“We know how adults’ brains respond<br />
to auditory change – even in our sleep our<br />
brains are aware <strong>of</strong> any changes in noise –<br />
but do babies respond?”<br />
Finding out if babies do respond to<br />
auditory change could lead to a better<br />
understanding <strong>of</strong> how autism and<br />
schizophrenia develop. For example, people<br />
with schizophrenia do not show the same<br />
level <strong>of</strong> change detection as those without<br />
it; and some people with autism are highly<br />
sensitive to auditory change.<br />
“So by monitoring how the brain develops<br />
we might gain more insight into this,”<br />
Dr Kaufman says. “The more we know<br />
about the typically developing brain, the<br />
more scientists can discover markers for<br />
atypical development, perhaps leading to<br />
early diagnostic tests and early interventions<br />
to minimise the negative effects <strong>of</strong> atypical<br />
brain development.” ••<br />
Contact. .<br />
<strong>Swinburne</strong> <strong>University</strong> <strong>of</strong> <strong>Technology</strong><br />
1300 MY SWIN (1300 697 946)<br />
magazine@swinburne.edu.au<br />
www.swinburne.edu.au/magazine<br />
neuroscience<br />
5
swinburne June 2009<br />
new technologies<br />
6
June 2009 swinburne<br />
,,<br />
The passive end<br />
<strong>of</strong> the fibre light<br />
guide can be<br />
rigidly mounted<br />
for accurate<br />
alignment with<br />
the laser, while<br />
the sensing<br />
end can remain<br />
flexible to make<br />
contact with<br />
the sample. In<br />
this way the<br />
sensor can<br />
be packaged<br />
into a thin,<br />
flexible needle<br />
and inserted<br />
beneath the skin<br />
with minimal<br />
discomfort.”<br />
Dr Paul Stoddart<br />
illustration: Justin garnsworthy<br />
Browsing the research posters at<br />
a scientific conference in 2002, Paul<br />
Stoddart was taken aback. Before him was<br />
an electron micrograph <strong>of</strong> a cicada wing<br />
that showed line after line <strong>of</strong> microscopic<br />
pillars arrayed on the wing’s surface, a<br />
pattern that resembled just the nanostructure<br />
Dr Stoddart was looking for to improve the<br />
sensitivity <strong>of</strong> a spectroscopy technique he<br />
was using.<br />
That chance sighting led Dr Stoddart, a<br />
research fellow at <strong>Swinburne</strong> <strong>University</strong> <strong>of</strong><br />
<strong>Technology</strong>, to spend many days searching<br />
suburban scrub for cicadas, removing their<br />
wings and coating them with silver. This<br />
was no amateur nature experiment; it was a<br />
means <strong>of</strong> refining an optical fibre sensor that<br />
would allow the continuous monitoring <strong>of</strong><br />
blood glucose levels in humans.<br />
“When I saw these patterns <strong>of</strong> structure<br />
on the cicada wings I thought they could be<br />
<strong>of</strong> some interest to the sensor application.<br />
So I coated a wing with silver and found it<br />
produced excellent results,” Dr Stoddart says.<br />
“The wings have an anti-reflection<br />
coating to prevent them reflecting sunlight<br />
and enhancing their camouflage. It turns<br />
out that this type <strong>of</strong> anti-reflective coating<br />
is exactly the kind <strong>of</strong> nanostructure suitable<br />
for the spectroscopy technique – Surface<br />
Enhanced Raman Scattering – that we use.<br />
“The wing surface provides a scale <strong>of</strong><br />
roughness that is ideally suited to our needs.<br />
When laser light illuminates the roughened<br />
surface, which has been coated in silver<br />
or gold, the light interacts with the surface<br />
electrons in such a way that the Raman<br />
scattering (the scattering <strong>of</strong> light photons) is<br />
increased by a factor <strong>of</strong> a million … in other<br />
words there is an amplification effect.”<br />
Further, the particular ordered, pillarpattern<br />
<strong>of</strong> the cicada wings adds a regularity<br />
that allows the results to be replicated more<br />
accurately.<br />
Dr Stoddart and colleagues at <strong>Swinburne</strong>’s<br />
Centre for Atom Optics and Ultrafast<br />
Spectroscopy are using Surface Enhanced<br />
Raman Scattering in the development <strong>of</strong> a<br />
device that will constantly monitor blood<br />
glucose levels in people with diabetes.<br />
The research team has developed and<br />
patented an optical fibre probe that could<br />
Diabetes hope<br />
on the wings <strong>of</strong><br />
silver cicadas<br />
The wings <strong>of</strong> a familiar noisy insect, the cicada, were the<br />
starting point for a device that will be able to continuously monitor<br />
blood glucose levels By Penny Fannin<br />
be used to monitor people’s blood glucose<br />
levels in real time, instead <strong>of</strong> the periodic<br />
tests diabetics must self-administer through<br />
the course <strong>of</strong> each day. The probe fits inside<br />
a small-gauge needle and Dr Stoddart<br />
envisages both would be incorporated into<br />
a wristwatch-style device. “The watch<br />
would contain the laser and the optics and<br />
the needle, with its fibre sensor, would be<br />
plugged in.” With one end <strong>of</strong> the needle<br />
plugged in to the device the other would<br />
penetrate the skin.<br />
Crucial to the success <strong>of</strong> such a device is<br />
finding a way for the glucose in the blood to<br />
interact with the sensor, Dr Stoddart says.<br />
“These optical fibres are the diameter<br />
<strong>of</strong> a hair and at the top <strong>of</strong> the hair we are<br />
building this sensor device,” he says. “For<br />
the sensing technique to work the optical<br />
fibre needs to have a nanostructured metal<br />
surface, preferably gold or silver, on its<br />
tip,” he says. “The metal surface interacts<br />
with the light passing through the optical<br />
fibre and amplifies the signal returned from<br />
the glucose by Surface Enhanced Raman<br />
Scattering.” The signal is then translated<br />
into a blood glucose reading through a<br />
spectrum analyser that is built in to the<br />
device.<br />
“The fact that it’s an optical fibre sensor<br />
is important because it removes the difficulty<br />
<strong>of</strong> otherwise aligning a focused laser beam<br />
with the sensor surface,” Dr Stoddart says.<br />
“The passive end <strong>of</strong> the fibre light<br />
guide can be rigidly mounted for accurate<br />
alignment with the laser, while the sensing<br />
end can remain flexible to make contact<br />
with the sample. In this way the sensor can<br />
be packaged into a thin, flexible needle<br />
and inserted beneath the skin with minimal<br />
discomfort.”<br />
Traditionally, optical fibre sensors have<br />
been used for industrial applications such<br />
as monitoring temperatures in oil wells,<br />
new technologies<br />
7
swinburne june 2009<br />
new technologies<br />
8<br />
Optical fibres help hearing surgeons ‘see’<br />
Cochlear implants, or bionic ears, have dramatically improved the hearing <strong>of</strong><br />
more than 150,000 people worldwide. However, in a small number <strong>of</strong> cases,<br />
the process <strong>of</strong> implanting the device can damage the delicate structures<br />
inside the cochlea (the snail-shaped structure in the inner ear that contains<br />
the organ <strong>of</strong> hearing).<br />
At a trade show in 2007 Dr Paul Stoddart, a research fellow at<br />
<strong>Swinburne</strong>’s Centre for Atom Optics and Ultrafast Spectroscopy, met<br />
representatives from Australian cochlear implant manufacturer Cochlear<br />
Ltd and began discussing the potential for optical fibre sensing devices to<br />
prevent potential tissue damage during cochlear implantation.<br />
“There might be some residual hearing left, so it would be better if the<br />
surgeons could tell, during implantation, if they were pushing up against the<br />
fine internal cochlea structures,” Dr Stoddart says.<br />
Cochlear’s head <strong>of</strong> implant design and development Edmond Capcelea<br />
says it is important to minimise any potential trauma to the internal cochlea<br />
structures during implantation.<br />
“Minimising trauma at insertion is really worthwhile,” he says. “Right<br />
now this procedure is done without direct feedback in terms <strong>of</strong> insertion <strong>of</strong><br />
the electrode array into the cochlea. Direct, instant feedback during insertion<br />
is preferable to lagging feedback, such as from patient performance.<br />
“This development we’re running with <strong>Swinburne</strong> <strong>University</strong> <strong>of</strong><br />
<strong>Technology</strong> is part <strong>of</strong> our drive to develop smarter or superior electrode<br />
arrays whereby the surgeons can get clues on whether they are touching the<br />
delicate internal cochlea tissue during insertion <strong>of</strong> the electrode array.”<br />
In collaboration with Cochlear, Dr Stoddart is investigating putting optical<br />
fibre Bragg gratings into the electrode array <strong>of</strong> cochlear implants where they<br />
could be used to guide the insertion <strong>of</strong> the array by the surgeon.<br />
“Optical fibre Bragg gratings were first used in the telecommunications<br />
industry to make optical fibre components, but the fibres can also be used<br />
for sensing,” Dr Stoddart says.<br />
Fibre Bragg gratings can be constructed in an optical fibre where they<br />
reflect particular wavelengths <strong>of</strong> light and transmit others. “If you stretch the<br />
fibre it can reflect longer wavelengths and if you compress it you can reflect<br />
shorter wavelengths so it is a good strain sensor,” Dr Stoddart says.<br />
“This is a very neat way <strong>of</strong> making an optical fibre filter without using<br />
discrete elements; everything can be done in the optical fibre.”<br />
Dr Stoddart says the research aims to put an optical fibre Bragg grating<br />
in the electrode array <strong>of</strong> cochlear implants where it can detect any pressure<br />
on the internal structures <strong>of</strong> the ear by monitoring a shift in the wavelength.<br />
“In due time we want to be trialling the first <strong>of</strong> these sensors in an<br />
implant. It will be a very significant development if we can get these fibres<br />
routinely used in implants.”<br />
– Penny Fannin<br />
sensing strain in bridges or in optical fibre<br />
gyroscopes in aeroplanes. Their use in<br />
medical devices is only now being widely<br />
explored.<br />
Dr Stoddart hopes the optical fibre sensor<br />
would be used as an alternative to the<br />
existing finger-prick test for measuring blood<br />
glucose levels. In this test a small lancet<br />
is used to puncture the fingertip and the<br />
resulting drop <strong>of</strong> blood is placed on a testing<br />
strip. The strip is then put in a blood glucose<br />
monitor that reads the blood sugar level.<br />
“The problem with the finger-prick test<br />
is you get snapshots <strong>of</strong> your glucose level;<br />
there might be five or six measurements<br />
per day, but you don’t know what’s<br />
happening in between those measurements,”<br />
Dr Stoddart says.<br />
“Our approach provides minimally<br />
invasive, continuous monitoring. If you<br />
want a controlled system you need to have<br />
continuous monitoring.”<br />
Dr Barry Dixon, the head <strong>of</strong> clinical<br />
research in the Intensive Care Unit (ICU)<br />
<strong>of</strong> Melbourne’s St Vincent’s Hospital,<br />
says there is a clinical need for continuous<br />
glucose monitoring that is less invasive and<br />
more efficient than current methods.<br />
Critically ill patients in the ICU are<br />
medically unstable and have problems with<br />
glucose control so their glucose levels are<br />
regularly monitored, Dr Dixon says.<br />
“At the moment in the ICU we take fourhourly<br />
blood glucose measurements and<br />
then work out how much insulin we should<br />
give,” Dr Dixon says. “Our ICU is a 12-bed<br />
ICU so with 12 patients we would be doing<br />
that pretty much all the time. That adds up<br />
to a lot <strong>of</strong> blood tests and a lot <strong>of</strong> time spent<br />
measuring insulin needs.”<br />
“Long-term, I hope we can set up a<br />
continuous glucose measurement where the<br />
device goes into the skin a small distance<br />
and that, as the technology improves, the<br />
measurements will become non-invasive and<br />
can be made just with a light source.”<br />
Such a novel application for optical fibre<br />
sensors started with the Diabetes Australia<br />
Research Trust providing seed funding for<br />
<strong>Swinburne</strong>’s research. Further funding over<br />
the past five years from the National Health<br />
and Medical Research Council (NHMRC)<br />
and ASX-listed company BioPharmica Ltd<br />
(BPH) has seen the research program make<br />
significant achievements.<br />
At the moment Dr Stoddart’s device is<br />
about the size <strong>of</strong> a lunch box. Although some<br />
<strong>of</strong> the components will need to be smaller,<br />
the research focus now is on improving the<br />
stability <strong>of</strong> the sensor.<br />
He says for the glucose in the blood to<br />
absorb onto the sensor the metal surface<br />
needs to be treated with a chemical. “You<br />
need this intimate connection between<br />
the sensor and the glucose to take the<br />
measurement,” he says.<br />
Commercially available chemicals have<br />
been trialled and the research team has<br />
identified a treatment that allows detection <strong>of</strong><br />
glucose at the lowest physiological levels in<br />
which they occur in humans.<br />
“At this stage the surface treatment only<br />
lasts for some minutes, we need to improve<br />
that to several days.” Dr Stoddart says there<br />
are well-established methods <strong>of</strong> doing that<br />
but they need to be worked through.<br />
He envisages the wristwatch device would<br />
need to have its sensor replaced every few<br />
days. For this to happen the sensors need to<br />
be produced quickly and in high numbers.<br />
That’s where the cicada wings become<br />
important.<br />
Dr Stoddart, in collaboration with<br />
Associate Pr<strong>of</strong>essor Arnan Mitchell’s group<br />
at RMIT <strong>University</strong>, has been using a<br />
technique called nanoimprint lithography to<br />
make copies <strong>of</strong> the cicada wing patterns at a<br />
nano scale. The technique involves making<br />
a mould <strong>of</strong> the wing surface and pressing<br />
it into a layer <strong>of</strong> heated plastic on the tip<br />
<strong>of</strong> an optical fibre. This creates an accurate<br />
imprinted copy <strong>of</strong> the nanoscopic pattern<br />
found on each wing. The imprinted tip can<br />
then be coated with gold or silver to make<br />
the sensor.<br />
Dr Stoddart says that when his team first<br />
used nanoimprint lithography to make the<br />
moulds about one tip an hour was being<br />
produced. “Funding from the NHMRC<br />
has allowed us to increase that by a factor<br />
<strong>of</strong> 100 and at that rate the process can be<br />
commercially viable. Because the sensors are<br />
disposable we need to be able to do that.”<br />
At current rates <strong>of</strong> progress he estimates<br />
the device would be available for trials in<br />
five years.<br />
“By developing medical applications for<br />
optical fibre sensors we can find a way to<br />
make a difference to people’s lives,” he says.<br />
“Whenever I talk about this diabetes work I<br />
ask for a show <strong>of</strong> hands from people with a<br />
family member or friend with diabetes; it’s<br />
amazing how many people put their hands<br />
up. You don’t get that when you’re working<br />
with oil wells.” ••<br />
Contact. .<br />
<strong>Swinburne</strong> <strong>University</strong> <strong>of</strong> <strong>Technology</strong><br />
1300 MY SWIN (1300 697 946)<br />
magazine@swinburne.edu.au<br />
www.swinburne.edu.au/magazine
June 2009 swinburne<br />
Alloy research<br />
cuts through the fighter cost barrier<br />
story by Rebecca Thyer<br />
Defence is an expensive business. Strike<br />
aircraft weapons systems, for example,<br />
don’t come cheap. But their necessity, and<br />
these strained economic times, means more<br />
research is being put into reducing their cost<br />
<strong>of</strong> production.<br />
So what on the surface is a conventional<br />
cost-cutting exercise – to reduce titanium<br />
machining costs and improve productivity<br />
– also has important ramifications for an<br />
international military project led by the US.<br />
Run by the US Department <strong>of</strong> Defense, the<br />
Joint Strike Fighter (JSF) Program is looking<br />
to not only produce the next generation <strong>of</strong><br />
defence aircraft for the US military and its<br />
allies, including Australia – which has a<br />
$16 billion tentative order for 100 F-35 JSFs<br />
– but to also make them more affordable.<br />
An important aspect <strong>of</strong> achieving this is<br />
being able to reduce the cost <strong>of</strong> machining<br />
titanium alloys. Their high strength-toweight<br />
ratio, the ability to retain that strength<br />
at high temperatures, and high corrosion<br />
resistance compared with other alloys<br />
has long made this metal attractive to the<br />
aerospace, marine, chemical, petroleum and<br />
biomedical industries.<br />
However, titanium alloys are difficult<br />
to machine, even with modern cutting<br />
technology. This is due to <strong>of</strong> a number <strong>of</strong><br />
factors:<br />
the way the alloy changes shape when<br />
machined;<br />
its low thermal conductivity, which makes<br />
it difficult to remove heat from the cutting<br />
region, increasing the temperature and<br />
contributing to a chemical interaction with<br />
the cutting tool’s material; and<br />
the alloy’s low elastic modulus, which<br />
means the material is easily deformed<br />
during machining.<br />
The F-35<br />
The Royal Australian<br />
Air Force has placed a<br />
tentative order, worth<br />
$16 billion, for 100 <strong>of</strong><br />
the Lockheed Martin<br />
F-35 Lightning II joint<br />
strike fighters.<br />
The F-35 is a<br />
supersonic, multi-role,<br />
fifth-generation stealth<br />
fighter. Three variants<br />
derived from a common<br />
design, developed<br />
together and using the<br />
same infrastructure<br />
worldwide, will replace<br />
at least 13 types <strong>of</strong><br />
aircraft for 11 nations<br />
initially, making the<br />
Lightning II the most<br />
cost-effective fighter<br />
program in history.<br />
More information<br />
• www.jsf.mil<br />
Added together it means that it takes<br />
longer to machine titanium alloys compared<br />
with other metals and tools are worn out<br />
faster, resulting in high machining costs.<br />
Tackling this problem – the resolution<br />
<strong>of</strong> which would have benefits for<br />
manufacturing worldwide – is Australia’s<br />
CAST Cooperative Research Centre (CRC).<br />
The CRC, which includes <strong>Swinburne</strong><br />
<strong>University</strong> <strong>of</strong> <strong>Technology</strong>, conducts industrydriven<br />
research into the use <strong>of</strong> aluminium,<br />
magnesium, titanium, cast iron and steel.<br />
Its CEO, George Collins, says the CAST<br />
CRC has been working to reduce titanium<br />
production costs for several years, and has<br />
been funding <strong>Swinburne</strong> to work on the<br />
laser-assisted turning <strong>of</strong> titanium. “It was a<br />
‘blue sky’ project for us and one <strong>of</strong> only two<br />
strategic research projects we fund. But it<br />
caught the attention <strong>of</strong> Lockheed Martin.”<br />
US-based Lockheed Martin is the global<br />
security and IT consultancy responsible for<br />
delivering on the goals <strong>of</strong> the US Defense<br />
Department’s JSF program.<br />
Dr Don Kinard, Lockheed Martin’s<br />
technical operations deputy for F-35 global<br />
production operations, says titanium alloys<br />
are widely used on the F-35 Lightning II,<br />
a strike fighter being developed by the<br />
JSF Program.<br />
“Machined and forged titanium parts are<br />
used routinely in high temperature areas such<br />
the engine compartment, where aluminium<br />
alloys cannot operate efficiently,” Dr Kinard<br />
says. “Titanium is also used in other<br />
structural F-35 applications, where it saves<br />
sufficient weight to justify the increased<br />
production cost.<br />
“For example, the use <strong>of</strong> machined/<br />
forged titanium parts is more pronounced on<br />
the F-35 carrier variant because <strong>of</strong> the high<br />
loads which that airplane encounters during<br />
carrier landings.”<br />
Interested in the results <strong>Swinburne</strong>’s<br />
Pr<strong>of</strong>essor Milan Brandt was getting –<br />
including that lasers make it possible<br />
to quicken the turning process at the<br />
same lathe power, while improving the<br />
finished product’s surface integrity thereby<br />
maintaining its strength and corrosionresistance<br />
properties – Lockheed Martin<br />
paid a visit while in Australia touring local<br />
research capability.<br />
Pr<strong>of</strong>essor Brandt says Lockheed Martin<br />
was interested in the laser-assisted turning<br />
project, but wanted to know if the same<br />
results could be gained from laser-assisted<br />
milling.<br />
It is a question that Pr<strong>of</strong>essor Brandt’s<br />
team – which includes his Industrial<br />
Research Institute <strong>Swinburne</strong> colleagues<br />
Dr Shoujin Sun, Girish Thipperudrappa,<br />
Andy Moore and PhD student Nancy Yang<br />
– is now half-way through answering via<br />
another CAST CRC project, one that is<br />
funded by Lockheed Martin.<br />
The research team uses a laser to heat<br />
the material surface, with a beam directed<br />
in front <strong>of</strong> the cutting tool, allowing the<br />
material to be cut with greater ease.<br />
Experiments vary the laser power,<br />
machining speed and depth <strong>of</strong> cut. “We<br />
want to find out why the reduction in cutting<br />
forces occurs with the heat <strong>of</strong> the laser and<br />
at what distance from the cutting tool,”<br />
Pr<strong>of</strong>essor Brandt says.<br />
So far, results for milling are as positive<br />
as those <strong>of</strong> laser-assisted turning. “But we<br />
need to do more experiments and see how<br />
we could integrate a laser and the cutting<br />
tool. That’s the long-term objective and<br />
ultimate aim <strong>of</strong> the Lockheed Martin work –<br />
to deliver the technical data needed to design<br />
an all-in-one machine.”<br />
Pr<strong>of</strong>essor Brandt says the idea to use<br />
lasers came from previous research on<br />
ceramics, another hard-to-machine material.<br />
“All we are trying to do is translate that to<br />
titanium. If we can increase the removal rate<br />
and increase tool life, then we can reduce the<br />
cost <strong>of</strong> machining and using titanium.”<br />
The research also allows for his team to<br />
examine the fundamental science behind<br />
laser-assisted titanium machining – and<br />
already Dr Sun has a new theory on titanium<br />
cutting.<br />
“At the end <strong>of</strong> the day it is all leading to<br />
machining titanium faster but maintaining a<br />
quality surface. Our objective is to increase<br />
the understanding <strong>of</strong> the cutting process and<br />
translate that into practical information.” ••<br />
Contact. .<br />
<strong>Swinburne</strong> <strong>University</strong> <strong>of</strong> <strong>Technology</strong><br />
1300 MY SWIN (1300 697 946)<br />
magazine@swinburne.edu.au<br />
www.swinburne.edu.au/magazine<br />
manufacturing<br />
9
swinburne June 2009<br />
<strong>Swinburne</strong>’s Pr<strong>of</strong>essor Min Gu is working on developing solar cells that use<br />
sunlight more efficiently and cost half as much to produce.<br />
solar power<br />
10<br />
All power<br />
to the sun and the light team<br />
PHOTO: Newspix / Paul Loughnan<br />
Affordable solar<br />
power may<br />
soon be just<br />
a flick <strong>of</strong> the<br />
switch away<br />
By<br />
Robin Taylor<br />
What began decades ago as a friendship<br />
between two university students in Shanghai<br />
has led to a multi-million-dollar research<br />
project with the potential to produce nextgeneration<br />
solar power as affordable as<br />
fossil-fuel-derived energy.<br />
The collaboration between <strong>Swinburne</strong><br />
<strong>University</strong> <strong>of</strong> <strong>Technology</strong> and China-based<br />
Suntech Power – one <strong>of</strong> the world’s largest<br />
manufacturers <strong>of</strong> solar panels – aims to<br />
develop solar cells that are twice as efficient<br />
and half the cost <strong>of</strong> existing cells.<br />
If the project is successful, the new<br />
technology – which makes more efficient use<br />
<strong>of</strong> sunlight – could be on the market within<br />
five years and close the gap between solar<br />
and fossil fuels.<br />
The project is led by Suntech CEO<br />
Dr Zhengrong Shi and the head <strong>of</strong><br />
<strong>Swinburne</strong>’s Centre for Micro-Photonics,<br />
Pr<strong>of</strong>essor Min Gu, and builds on a friendship<br />
that began at university and continued in<br />
Australia when they began working side-byside<br />
at the <strong>University</strong> <strong>of</strong> New South Wales in<br />
the late 1980s.<br />
Since then Dr Shi’s Suntech has become<br />
the world’s largest producer <strong>of</strong> crystalline<br />
silicon solar panels, and Pr<strong>of</strong>essor Gu a<br />
leader in micro-photonics research.<br />
Research-wise they have followed<br />
different paths while maintaining a shared<br />
interest in light: Pr<strong>of</strong>essor Gu pursued<br />
research on laser fusion and micro-photonics<br />
and Dr Shi was part <strong>of</strong> the pioneering team<br />
that developed thin solar cell technology, a<br />
breakthrough that dramatically reduced the<br />
cost <strong>of</strong> solar cells.<br />
Today, their paths have crossed again in a<br />
research collaboration which they hope will<br />
increase solar-energy uptake by producing<br />
cheaper and more efficient solar cells.<br />
Pr<strong>of</strong>essor Gu explains that although thinfilm<br />
technology uses 100 times less silicon<br />
than conventional cells, thereby reducing the<br />
cost <strong>of</strong> photovoltaic solar panels, the cells’<br />
poor absorption <strong>of</strong> near infrared light limits<br />
their performance.<br />
And light performance is <strong>of</strong> particular<br />
interest to Pr<strong>of</strong>essor Gu. At the Centre for<br />
Micro-Photonics, he and his colleagues study<br />
the process <strong>of</strong> converting light to energy and
June 2009 swinburne<br />
how to make that process more efficient.<br />
A major focus <strong>of</strong> his research is the study<br />
<strong>of</strong> photonic crystals – tiny structures that<br />
can manipulate and control light by multiple<br />
reflection. Pr<strong>of</strong>essor Gu came up with the<br />
idea <strong>of</strong> developing these photonic crystals to<br />
act as solar cells – to convert light to energy<br />
– and suggested it to Dr Shi.<br />
Pr<strong>of</strong>essor Gu says the new solar cells use a<br />
combination <strong>of</strong> photonic crystals treated with<br />
metallic nanoparticles, together with thin-film<br />
photovoltaic technology. The combination<br />
should enable the efficient collection <strong>of</strong> solar<br />
energy in a wider colour range, making the<br />
cells twice as efficient and significantly less<br />
costly to make than other cells.<br />
The new solar cells use nanoparticles to<br />
trap light into a thin-film photovoltaic cell.<br />
“Basically, if you can slow down the light<br />
it will stay in the solar cell longer and thus<br />
convert more light to electricity,” Pr<strong>of</strong>essor<br />
Gu says. “If you are able to trap the light<br />
in the part <strong>of</strong> the solar cell where the<br />
conversion is taking place, it becomes even<br />
more efficient.”<br />
Pr<strong>of</strong>essor Gu and his colleagues have<br />
already started work on a model cell, which<br />
will be produced on a pilot scale at Suntech<br />
in China.<br />
“By working with Suntech in the<br />
development phase, we can ensure the<br />
technology can be transferred to the<br />
production line,” he says.<br />
<strong>Swinburne</strong> signed the agreement<br />
with Suntech Power in April and each<br />
organisation will contribute $3 million.<br />
The project is also seeking funding from the<br />
Victorian Government.<br />
Pr<strong>of</strong>essor Gu believes the group’s<br />
combination <strong>of</strong> research and business<br />
expertise will allow it to develop and<br />
manufacture the revolutionary solar cells<br />
within five years.<br />
Although he has been approached by<br />
other institutes to pursue similar research,<br />
Dr Shi says he selected the <strong>Swinburne</strong> team<br />
because <strong>of</strong> its expertise in nanotechnology,<br />
which he believes will play an important role<br />
in next-generation solar technology.<br />
For solar power to succeed as a<br />
replacement for existing methods <strong>of</strong><br />
generating electricity, it must be able to<br />
compete with fossil fuel technologies in<br />
terms <strong>of</strong> cost and performance and Dr Shi<br />
believes that the new technology could lead<br />
to solar power becoming as cheap as energy<br />
derived from fossil fuels.<br />
And, although Australian demand for<br />
Nanophotonics Down Under 2009<br />
A meeting will be held in Melbourne in June to discuss the emerging field<br />
<strong>of</strong> nanophotonics, which is becoming increasingly important in photonics<br />
applications such as solar energy, information technology, biomedicine and<br />
consumer electronics.<br />
Nanophotonics Down Under 2009 Devices and Applications (SMONP 2009)<br />
will bring together international specialists from industry and academia<br />
to identify key challenges in the emerging applications <strong>of</strong> nanophotonics.<br />
The event will also provide a forum for scientists, engineers and industry<br />
representatives to develop new strategic alliances and partnerships.<br />
The program includes a public lecture on Sunday 21 June to increase<br />
public awareness <strong>of</strong> the importance <strong>of</strong> nanophotonics in future technological<br />
applications. The lecture, by Pr<strong>of</strong>essor Martin Green from the <strong>University</strong> <strong>of</strong><br />
New South Wales, will focus on solar energy.<br />
More information<br />
• Nanophotonics Down Under 2009 Devices and Applications, 21-24 June, Melbourne<br />
Convention and Exhibition Centre, www.smonp2009.com<br />
solar power accounts for less than 1 per cent<br />
<strong>of</strong> the total world market, he says there are<br />
many positive indications for the future <strong>of</strong><br />
the industry in Australia, such as the growing<br />
interest and public support for renewable<br />
energy solutions.<br />
The collaborative research group will<br />
eventually be housed in <strong>Swinburne</strong>’s new<br />
Advanced <strong>Technology</strong> Centre, a $130 million<br />
development due for completion in<br />
early 2011.<br />
Dr Shi is a guest speaker at this year’s<br />
Nanophotonics Down Under conference. ••<br />
Contact. .<br />
<strong>Swinburne</strong> <strong>University</strong> <strong>of</strong> <strong>Technology</strong><br />
1300 MY SWIN (1300 697 946)<br />
magazine@swinburne.edu.au<br />
www.swinburne.edu.au/magazine<br />
Solar Power<br />
11<br />
IMAGINE<br />
WITH ACCOUNTANTS.<br />
How can calculators and balance sheets be used to combat crime?<br />
Accounting Pr<strong>of</strong>essor Suresh Cuganesan is a leading researcher in performance<br />
measurement who is helping Victoria Police and the Australian Crime Commission<br />
combat organised crime. Read all about it in <strong>Swinburne</strong> Magazine back issues,<br />
available when you subscribe online at www.swinburne.edu.au/magazine<br />
www.swinburne.edu.au/magazine<br />
For more fascinating <strong>Swinburne</strong> discoveries, subscribe online for free.<br />
QUESTION EVERYTHING<br />
1300 MY SWIN<br />
swinburne.edu.au/magazine<br />
CRICOS Provider: 00111D
swinburne June 2009<br />
‘green’ business<br />
12<br />
Companies find<br />
a competitive<br />
green<br />
edge<br />
A business environmental mentoring program<br />
is showing that ‘going green’ can win customers<br />
and pr<strong>of</strong>its By Robin Taylor<br />
David Van Berkel <strong>of</strong><br />
Garden Express.<br />
Yarra Valley nurseryman David Van<br />
Berkel was annoyed that people passing<br />
his stand at garden shows would take his<br />
company brochures but leave behind his<br />
plastic showbag. So he came up with an<br />
innovative solution – he asked his supplier to<br />
put a perforated strip across the bottom <strong>of</strong> the<br />
bag, which customers could tear <strong>of</strong>f to turn<br />
the bag into a tree guard. People now happily<br />
accept the plastic carrier. It’s useful to them<br />
and becomes a marketing tool for the nursery.<br />
It’s a subtle piece <strong>of</strong> creative thinking,<br />
which Mr Van Berkel attributes to his<br />
participation in the Business Transformer<br />
Program, run by the National Centre for<br />
Sustainability at <strong>Swinburne</strong> <strong>University</strong> <strong>of</strong><br />
<strong>Technology</strong>.<br />
He is one <strong>of</strong> a growing number <strong>of</strong><br />
business owners and operators who<br />
have completed the centre’s program<br />
set up to help companies develop more<br />
environmentally sustainable practices.<br />
Mr Van Berkel participated in a 12-month<br />
program run in collaboration with the Shire<br />
<strong>of</strong> Yarra Ranges (see accompanying story).<br />
The centre’s team leader for business and<br />
community sustainability, Scott McKenry,<br />
says the program is designed to encourage<br />
business owners to think differently about<br />
their products and services; how they are<br />
<strong>of</strong>fered, and how they can be future-pro<strong>of</strong>ed<br />
through sustainable growth strategies.<br />
photo: paul Jones
June 2009 swinburne<br />
“We take businesses out <strong>of</strong> their operational<br />
headspace,” he says.<br />
While the centre’s core business is<br />
education, it also develops and delivers<br />
community and business programs in<br />
collaboration with industry, local councils<br />
and communities, which is how the Business<br />
Transformer Program started. The program,<br />
which began in 2006, was originally funded<br />
by Sustainability Victoria and the Victorian<br />
Environment Protection Authority.<br />
In its first year a number <strong>of</strong> large<br />
organisations such as Pilkington Glass (now<br />
Viridian), Huntsman Chemicals and the City<br />
<strong>of</strong> Melbourne participated in the program.<br />
Mr McKenry says a notable outcome <strong>of</strong> that<br />
first program was that Pilkington Glass was<br />
able to secure multi-million-dollar funding<br />
from Sustainability Victoria to build a new<br />
manufacturing facility to make ‘comfort<br />
glass’, which is used in buildings to achieve<br />
a five-star energy rating.<br />
The Business Transformer Program<br />
operates with local councils within a particular<br />
geographical area to encourage businesses to<br />
work together. Twelve businesses participated<br />
in the Yarra Ranges program.<br />
Mr McKenry says the council identified<br />
businesses that were looking for support to<br />
minimise natural resource use, reduce waste<br />
and greenhouse gas emissions, and engage<br />
more effectively, from an environmental<br />
and commercial perspective, with their local<br />
communities.<br />
The Yarra Ranges businesses, which<br />
ranged from a winery to a company<br />
producing cable and antenna systems, showed<br />
that improved environmental performance can<br />
clearly be good business. Over the program’s<br />
12 months the businesses recorded average<br />
cuts in energy consumption <strong>of</strong> 8 to 10<br />
per cent. This represented a $100,000 saving<br />
in energy bills and a reduction <strong>of</strong> about<br />
1800 tonnes in carbon dioxide emissions.<br />
This result was achieved by each business<br />
running (with the centre’s help) its own<br />
project – for example, working with its<br />
supply chain to reduce packaging, improve<br />
efficiency or implementing a behaviourchange<br />
program for customers or staff.<br />
The program includes seminars covering<br />
people’s own business case for sustainability<br />
and stakeholder engagement and these<br />
are supplemented by in-house workshops<br />
on themes like behaviour change, carbon<br />
management, energy efficiency, water<br />
efficiency and project planning.<br />
Advisers from the centre also visit<br />
businesses to help build some <strong>of</strong> the<br />
benchmarks for measuring progress in areas<br />
such as energy and water use and waste.<br />
The Business Transformer Program<br />
stays abreast <strong>of</strong> international trends and<br />
developments through the participation <strong>of</strong><br />
a Canadian business sustainability expert,<br />
Dr Bob Willard.<br />
Dr Willard says the program’s<br />
distinguishing characteristic is the<br />
opportunity it gives participants to apply<br />
what they learn to a real initiative in their<br />
organisation. “Because the program takes a<br />
year to complete, they have a chance to roll<br />
up their sleeves, apply their knowledge, and<br />
learn from their successes and challenges<br />
and those <strong>of</strong> other participants,” he says.<br />
“This helps people become more effective<br />
leaders <strong>of</strong> subsequent projects.”<br />
From his international perspective,<br />
Dr Willard says Australian businesses tend to<br />
work more cooperatively with government<br />
on sustainability issues than businesses in<br />
other countries. “I also sense that Australian<br />
business leaders are more open to good ideas<br />
from elsewhere and are not as inhibited by<br />
the NIH (‘not invented here’) factor. That’s<br />
refreshing.”<br />
In 2008 businesses in the City <strong>of</strong><br />
Casey took part in a shorter version <strong>of</strong> the<br />
transformer program, and in 2009 the City <strong>of</strong><br />
Knox (both are Melbourne municipalities) is<br />
also partnering a program for businesses in<br />
its area.<br />
Mr McKenry says the program is modular<br />
and can be set up and run as required for a<br />
particular council. In response to industry<br />
input, the program now includes more<br />
content on issues related to climate change<br />
and carbon accounting.<br />
Businesses pay a fee, on a sliding scale<br />
according to their size, to participate. The<br />
cost ranges from $1500 for companies with<br />
fewer than 100 employees, to $3000 for<br />
businesses with 100 to 300 employees, and a<br />
negotiable rate for larger companies.<br />
Mr McKenry says that while the programs<br />
to date have all been run by <strong>Swinburne</strong> in<br />
Victoria, there is potential to run them in<br />
other states through the centre’s collaborative<br />
network. ••<br />
The National Centre for Sustainability<br />
is a collaboration <strong>of</strong> several institutions<br />
across Australia: <strong>Swinburne</strong> <strong>University</strong> <strong>of</strong><br />
<strong>Technology</strong> (Victoria), Sunraysia Institute<br />
<strong>of</strong> TAFE (Victoria), <strong>University</strong> <strong>of</strong> Ballarat<br />
(Victoria), South West Institute <strong>of</strong> TAFE<br />
(Victoria), Challenger TAFE (Western<br />
Australia) and Tropical North Queensland<br />
Institute <strong>of</strong> TAFE.<br />
Contact. .<br />
<strong>Swinburne</strong> <strong>University</strong> <strong>of</strong> <strong>Technology</strong><br />
1300 MY SWIN (1300 697 946)<br />
magazine@swinburne.edu.au<br />
www.swinburne.edu.au/magazine<br />
Case study<br />
Business blooms from<br />
an unexpected marketing edge<br />
For Garden Express owner David Van Berkel, being involved in the Business<br />
Transformer Program provided a fresh perspective on opportunities,<br />
which he says he would otherwise not have thought <strong>of</strong>, for marketing his<br />
company’s green credentials.<br />
Garden Express is a mail order and online garden centre. It publishes a<br />
catalogue five times a year and also produces wholesale flower bulbs for<br />
the nursery industry.<br />
Mr Van Berkel says he started the course just focused on recycling and<br />
energy savings and only as the course progressed did he realise that these<br />
could also create marketing opportunities.<br />
“I became aware that we needed to produce a more environmentally<br />
friendly package and market that to our customers,” he says. “The best<br />
thing for me was to use the power <strong>of</strong> my catalogues and database to tell<br />
my customers what we were doing to become green.”<br />
He says the quickest and easiest change the company made was<br />
reducing energy use in the workplace. Simply by educating staff about<br />
the potential savings to be gained by turning <strong>of</strong>f unused equipment, the<br />
company was able to reduce energy consumption by about 10 per cent, at<br />
no cost, and Mr Van Berkel regards that as just the start.<br />
He said the program showed people how these sorts <strong>of</strong> changes could<br />
improve their business, and even if the change did not result directly in<br />
additional pr<strong>of</strong>it it created a stronger relationship with customers through<br />
being seen to be “doing the right thing”.<br />
He says another gain from the program was the network it created with<br />
other businesses in the shire: “A cable production company is completely<br />
different to a flower bulb company but, at the end <strong>of</strong> the day, if you run a<br />
machine you are in the same business <strong>of</strong> using resources.”<br />
Carbon accountants queue<br />
for accreditation<br />
In keeping with the political momentum building behind a national carbon<br />
trading scheme, <strong>Swinburne</strong>’s National Centre for Sustainability has<br />
been inundated with demand for its course in carbon accounting. Since<br />
introducing the course (Australia’s first accredited carbon accounting course)<br />
in May 2008, a steady stream <strong>of</strong> budding carbon accountants have signed up<br />
to become accredited.<br />
A significant part <strong>of</strong> the centre’s work in the past few years has been<br />
developing greenhouse gas management strategies for businesses. Scott<br />
McKenry says this work <strong>of</strong>ten involves partnering with the country’s<br />
foremost experts in the field, who now act as course facilitators.<br />
“We haven’t even marketed the course and every intake has been full,”<br />
he says.<br />
Last year, eight groups <strong>of</strong> 16 participants completed the course and this<br />
year another 14 groups <strong>of</strong> 16 are scheduled to take part.<br />
“There are a lot <strong>of</strong> consultants who want accreditation, as well as<br />
people from emissions-intensive industries and local councils, many <strong>of</strong><br />
which will have potential liabilities under an emissions trading scheme,”<br />
Mr McKenry says.<br />
The hands-on course requires participants to carry out carbon<br />
accounting in their workplace and provide evidence to show they can<br />
develop an emissions inventory and report.<br />
More information<br />
• www.swinburne.edu.au/ncs/Education/CarbonAcc.html<br />
‘green’ business<br />
13
swinburne JUne 2009<br />
Maren Rawlings<br />
workplace<br />
14<br />
No joke when it’s<br />
survival <strong>of</strong><br />
the funniest<br />
story by Bianca Nogrady & Rebecca Thyer<br />
In uncertain economic times when many<br />
people are worried about keeping their jobs,<br />
it’s understandable that some workplaces<br />
may be losing the jocular banter that<br />
otherwise relieves the working day.<br />
But this doesn’t mean that humour has left<br />
the <strong>of</strong>fice. Quite the contrary, it seems, with<br />
humour acquiring a competitive edge as it<br />
becomes part <strong>of</strong> some people’s survival strategy.<br />
Qualitative evidence uncovered by<br />
,,<br />
When stress<br />
levels increase<br />
people tend<br />
to use their<br />
humour<br />
competitively.”<br />
Maren Rawlings<br />
photo: paul Jones<br />
<strong>Swinburne</strong> PhD researcher Maren Rawlings<br />
suggests that some types <strong>of</strong> humour – the<br />
type that targets particular people as the butt<br />
<strong>of</strong> jokes – regularly occurs in the workplace.<br />
And this type <strong>of</strong> humour could be on the rise.<br />
Ms Rawlings, a psychologist in<br />
<strong>Swinburne</strong>’s Faculty <strong>of</strong> Life and Social<br />
Sciences and a former teacher, says that the<br />
rate <strong>of</strong> competitive humour clearly increases<br />
as work environments become more stressed.<br />
“People are very generous to each other<br />
when things are going well, but that starts<br />
to change when workplaces become tense.<br />
People start to compete and humour becomes<br />
strategic.”<br />
Although it might seem a trivial<br />
consequence <strong>of</strong> a downturn in global fortunes,<br />
this sort <strong>of</strong> humour has wider implications.<br />
Ms Rawlings’s research is finding,<br />
unsurprisingly, that ‘bad humour’ can reduce<br />
people’s job satisfaction and their perception<br />
<strong>of</strong> their own and others’ productivity.<br />
Ms Rawlings has measured the impact<br />
on organisations <strong>of</strong> how humour is used at<br />
work. This has led to her development <strong>of</strong> a<br />
tool that assesses workplace humour.<br />
Called the Humour at Work scale (HAW)<br />
it is a proxy measure <strong>of</strong> the atmosphere <strong>of</strong><br />
a workplace and it predicts employees’ job<br />
satisfaction. She has found that it can explain<br />
variations in productivity between <strong>of</strong>fices or<br />
worksites.<br />
The HAW scale is likely to be<br />
commercialised later this year for use by<br />
human resources units to sample an <strong>of</strong>fice<br />
climate, without the need to ask unwelcome<br />
questions. “It asks about humour in the<br />
workplace, not about an individual’s fear or<br />
job satisfaction, so workers are more likely<br />
to respond to it,” Ms Rawlings says.<br />
Ms Rawlings began studying how humour<br />
is used at work and the difference it can<br />
make to the <strong>of</strong>fice environment as part <strong>of</strong> her<br />
PhD at <strong>Swinburne</strong>, with Dr Bruce Findlay.<br />
She wrote 150 items, 75 about how an<br />
individual uses humour and 75 about how an<br />
individual sees other people use humour, and<br />
gave them to more than 350 participants in<br />
an international internet survey.<br />
From this research, which examined the<br />
reasons why people use humour and also<br />
other people’s reactions to that humour, she<br />
was able to articulate two clear sets <strong>of</strong> factors<br />
defining ‘pleasant’ or ‘unpleasant’ humour<br />
environments. These led to two scales: one<br />
for a pleasant climate where humour puts<br />
people at ease and its flipside, an unpleasant<br />
climate, where humour is nasty.<br />
The next step was to ascertain what<br />
difference these climates made. To answer<br />
this, Ms Rawlings surveyed 400 Australian<br />
working people to calibrate her humour scale<br />
against job satisfaction and other workplace<br />
measures, including one that predicted<br />
productivity. She found the more there was<br />
positive humour in a workplace, the more<br />
satisfied employees were. This shouldn’t<br />
come as a surprise, but she found it did fly<br />
in the face <strong>of</strong> a common management belief<br />
that ‘joking around’ was bad for workplace<br />
efficiency.<br />
High results on the unpleasant humour<br />
climate scale correlated strongly with low<br />
job satisfaction and with low scores on the<br />
occupational climate measure that predicted<br />
productivity.<br />
Continuing research has allowed her<br />
to show that an unpleasant workplace<br />
environment, particularly the presence<br />
<strong>of</strong> negative humour, could be increasing<br />
people’s anxiety at work and eroding people’s<br />
job satisfaction so much that productivity<br />
levels could be reduced by nearly 20 per cent<br />
compared with those being achieved in more<br />
relaxed or ‘fun’ workplaces.<br />
Because her research has coincided<br />
with the deteriorating global economy,<br />
Ms Rawlings has received anecdotal<br />
evidence on its impact on <strong>of</strong>fice humour<br />
too: “People are either saying there is now<br />
no humour at work or that the humour is<br />
grim,” she says. “Also, when stress levels<br />
increase people tend to use their humour<br />
competitively.” ••<br />
* Ms Rawlings’ humour knowledge has been<br />
recognised internationally. In July 2008 she<br />
was awarded a Certificate <strong>of</strong> Merit and a<br />
cash prize from the International Society<br />
for Humour Studies for her postgraduate<br />
presentation at its conference in Spain.<br />
Contact. .<br />
<strong>Swinburne</strong> <strong>University</strong> <strong>of</strong> <strong>Technology</strong><br />
1300 MY SWIN (1300 697 946)<br />
magazine@swinburne.edu.au<br />
www.swinburne.edu.au/magazine
June 2009 swinburne<br />
New environment to debug<br />
global-scale I.T. upgrades<br />
story by David Adams<br />
Testing new computer systems before they<br />
go live is usually standard procedure for<br />
introducing new s<strong>of</strong>tware across a business.<br />
But when it comes to large, distributed<br />
systems such as those used by global<br />
companies, this is not an easy exercise.<br />
While existing testing technologies can<br />
emulate, to a certain extent, enterprisescale<br />
IT environments, they tend to be<br />
time-consuming to deploy and require<br />
considerable resources to operate. There<br />
is a lack <strong>of</strong> scalable testing environments<br />
that can efficiently and realistically imitate<br />
the complex interactions that occur among<br />
the tens <strong>of</strong> thousands <strong>of</strong> systems across big<br />
businesses on a daily basis.<br />
Pr<strong>of</strong>essor Jun Han, who heads<br />
<strong>Swinburne</strong> <strong>University</strong> <strong>of</strong> <strong>Technology</strong>’s<br />
S<strong>of</strong>tware and Enterprise Systems research<br />
program, says that a typical large enterprise<br />
will have thousands <strong>of</strong> different IT<br />
systems supporting various parts <strong>of</strong> the<br />
business (from procurement to personnel<br />
management, and involving different<br />
s<strong>of</strong>tware and hardware), each <strong>of</strong> which may<br />
need to interact with the other.<br />
For example, he says employees <strong>of</strong>ten<br />
have specific clearances to access different<br />
IT systems – a set-up that is usually<br />
done with one entry through an identity<br />
management system, which will talk to all<br />
the other systems.<br />
But the identity management system itself<br />
needs to be tested before being deployed.<br />
“And that generally is a problem,”<br />
Pr<strong>of</strong>essor Han says. “How do you test this<br />
s<strong>of</strong>tware? You can’t test it in a production<br />
environment, and in a development<br />
environment you can’t set up a realistic<br />
physical testing environment running<br />
10,000 systems.”<br />
The existing methods for testing<br />
scenarios such as this are complex and<br />
cumbersome and there is currently no single<br />
method or tool that can efficiently test all<br />
the issues involved.<br />
It is necessary to rely on a combination<br />
<strong>of</strong> tools and techniques, each <strong>of</strong> which tests<br />
different facets <strong>of</strong> the issues that may arise<br />
in large-scale inter-connected enterprise<br />
environments. Examples <strong>of</strong> these techniques<br />
include networks <strong>of</strong> virtual machines, load<br />
generation tools and custom scripts and<br />
s<strong>of</strong>tware agents.<br />
Setting up<br />
a network <strong>of</strong><br />
virtual machines,<br />
for example,<br />
may involve running up to<br />
100 machines and seeing whether<br />
they interact correctly.<br />
“This may work with<br />
100 systems but not with<br />
1000 or 10,000 systems, in<br />
meeting quality expectations<br />
like response time and<br />
throughput,” Pr<strong>of</strong>essor<br />
Han says.<br />
It is a global challenge and Pr<strong>of</strong>essor<br />
Han is now leading a collaborative<br />
research project between <strong>Swinburne</strong> and an<br />
international IT group, CA Labs, to develop<br />
a s<strong>of</strong>tware environment that runs on just<br />
one or two computers while emulating<br />
widely distributed computing conditions and<br />
systems within a business.<br />
Using a scalable prototype system means<br />
that the testing environment can involve<br />
as many systems as required and provide a<br />
realistic enterprise setting.<br />
Alongside the ability to conduct<br />
functional and performance testing<br />
on a large scale, Pr<strong>of</strong>essor Han says<br />
it is envisaged that the new emulation<br />
environment being developed would also<br />
enable other system qualities – such as<br />
how the system responds to delay or to<br />
unpredictable behaviour – to be more<br />
accurately tested than has previously<br />
been possible.<br />
“That’s the ‘it’ factor we want to achieve<br />
in this emulation environment: to emulate<br />
thousands <strong>of</strong> systems in real time with<br />
predetermined and unpredictable behaviour.<br />
It’s about quality assurance (QA), knowing<br />
that a new system will function properly, no<br />
matter how many systems it needs to talk to<br />
and even if some <strong>of</strong> these systems are not<br />
available or down.”<br />
The project is being funded by CA Labs,<br />
which was established by global s<strong>of</strong>tware<br />
firm CA in 2005 to strengthen relationships<br />
between the company and research<br />
communities. It has been running for two<br />
years and is expected to continue beyond its<br />
initial three-year timetable.<br />
illustration: Justin garnsworthy<br />
,,<br />
That’s the ‘it’<br />
factor we want<br />
to achieve in<br />
this emulation<br />
environment:<br />
to emulate<br />
thousands <strong>of</strong><br />
systems in<br />
real time with<br />
predetermined<br />
and<br />
unpredictable<br />
behaviour.”<br />
Pr<strong>of</strong>essor<br />
Jun Han<br />
As well as<br />
Pr<strong>of</strong>essor Han, the team <strong>of</strong><br />
<strong>Swinburne</strong> researchers working<br />
on the project includes Dr Jean-Guy<br />
Schneider, Dr Lars Grunske and PhD<br />
student Cameron Hine.<br />
The project is based on, and further<br />
extends, <strong>Swinburne</strong>’s research expertise in<br />
system integration, s<strong>of</strong>tware architecture,<br />
and system performance and reliability.<br />
A prototype system, known as REACTO,<br />
was demonstrated at the four-day CA World<br />
conference in Las Vegas in November<br />
2008. The demonstration emulated 10,000<br />
enterprise systems successfully interacting<br />
with CA’s ‘Identity Manager’ s<strong>of</strong>tware as<br />
the system under test.<br />
Dr Steve Versteeg, a research staff<br />
member at CA Labs in Melbourne and also<br />
a member <strong>of</strong> the project team, says the<br />
concept has already attracted considerable<br />
interest within CA and its customer base,<br />
which represents many <strong>of</strong> the world’s largest<br />
enterprises.<br />
Noting that while all CA s<strong>of</strong>tware is<br />
already comprehensively tested before<br />
it goes out, Dr Versteeg adds that the<br />
scalable emulation project would further<br />
enhance that.<br />
“QA has existing methods for testing the<br />
scalability <strong>of</strong> a system,” he notes. “What<br />
this can do is to unify that and simplify and<br />
extend it.” ••<br />
Contact. .<br />
<strong>Swinburne</strong> <strong>University</strong> <strong>of</strong> <strong>Technology</strong><br />
1300 MY SWIN (1300 697 946)<br />
magazine@swinburne.edu.au<br />
www.swinburne.edu.au/magazine<br />
Information <strong>Technology</strong><br />
15
swinburne June 2009<br />
Dark mysteries<br />
lure cosmic surveyors<br />
Astrophysics<br />
16<br />
A massive survey <strong>of</strong> the universe is under way in Australia to detect the faintest <strong>of</strong> echoes: an<br />
acoustic ‘wiggle’ from the Big Bang. A wiggle that may hold the key to understanding a mysterious<br />
new force – dark energy – that is causing the universe to fly apart By Gio Braidotti
June 2009 swinburne<br />
The Milky Way’s parade across Earth’s<br />
night sky <strong>of</strong>fers a glittering view <strong>of</strong> our<br />
home galaxy and a glimpse <strong>of</strong> the billions<br />
<strong>of</strong> galaxies in the cosmos beyond. However,<br />
despite this night sky splendour, an image<br />
taken by NASA’s Wilkinson Microwave<br />
Anisotropy Probe (WMAP) satellite shows<br />
that viewing platforms on Earth can see<br />
2009 Year <strong>of</strong> Astronomy<br />
This year is the International Year <strong>of</strong> Astronomy:<br />
a worldwide celebration <strong>of</strong> astronomy, held to<br />
mark the 400th anniversary <strong>of</strong> Galileo turning<br />
a telescope to the sky. Australia is one <strong>of</strong><br />
63 countries participating.<br />
More information<br />
• www.astronomy2009.org.au<br />
Emily Wisnioski (left) and<br />
Dr Sarah Brough.<br />
photo: paul Jones<br />
only a tiny part, perhaps just 3 per cent, <strong>of</strong><br />
the known universe.<br />
Most <strong>of</strong> the remainder appears to be<br />
something quite new to human discovery –<br />
dark energy. This is the mysterious property<br />
that is causing the universe’s expansion to<br />
accelerate in ways that confound fundamental<br />
physics. It may eventually challenge<br />
Einstein’s general theory <strong>of</strong> relativity and his<br />
theory that gravity is the force that should<br />
counter-balance cosmic expansion.<br />
This dark energy has only been known<br />
to science for about a decade and is not to<br />
be confused with dark matter, which was<br />
discovered more than half a century ago.<br />
Dark matter has a gravitational ‘pull’ because<br />
<strong>of</strong> its mass, but something is overcoming<br />
this to allow the universe to ‘push’ outwards<br />
and keep expanding. It is this ‘push’ that<br />
scientists have called dark energy.<br />
Dark energy’s discovery in the late-<br />
1990s was a shock for astrophysicists, who<br />
promptly initiated a suite <strong>of</strong> investigations to<br />
understand the relevance <strong>of</strong> dark energy to<br />
the origin, evolution, composition and fate <strong>of</strong><br />
the universe.<br />
One <strong>of</strong> these initiatives was the WiggleZ<br />
Dark Energy Survey, which is being<br />
undertaken at the Centre for Astrophysics<br />
and Supercomputing at <strong>Swinburne</strong> <strong>University</strong><br />
<strong>of</strong> <strong>Technology</strong>. The WiggleZ team is a<br />
collaboration between <strong>Swinburne</strong> and several<br />
other Australian institutions and is attempting<br />
to measure the distances separating 200,000<br />
galaxies as the universe expands.<br />
These observations have been made<br />
possible by a powerful new spectrograph<br />
at the Anglo-Australian Telescope in<br />
Coonabarabran, NSW. Called AAOmega,<br />
the instrument can image 392 galaxies an<br />
hour, despite the galaxies being located half<br />
the distance <strong>of</strong> the universe away. Data from<br />
NASA’s orbiting Galaxy Evolution Explorer<br />
(GALEX) satellite is helping the Australian<br />
team select where to probe in the night sky.<br />
<strong>Swinburne</strong> astrophysicist Dr Sarah<br />
Brough explains that AAOmega measures<br />
the ‘redshift’ in light emitted by the target<br />
galaxies. Redshift is the increase that<br />
occurs in light’s wavelength if the emitting<br />
light-source is moving away from us. The<br />
existence <strong>of</strong> redshift in starlight is the<br />
evidence used to support the theory that the<br />
universe is expanding.<br />
Dr Brough says that because redshift<br />
increases the further a galaxy moves away<br />
from us, the AAOmega observations provide<br />
a measure <strong>of</strong> the physical distance between<br />
Earth and the galaxy. By observing galaxies<br />
located at a range <strong>of</strong> distances from Earth,<br />
separation between galaxies can be measured<br />
at various ages <strong>of</strong> the universe. It is this that<br />
provides a history <strong>of</strong> cosmic expansion.<br />
By observing 200,000 galaxies, the<br />
WiggleZ team is creating a huge database <strong>of</strong><br />
separation distances. When enough <strong>of</strong> these<br />
measurements are plotted, a characteristic<br />
‘wiggle’ appears in the distribution.<br />
“More accurately termed ‘baryon acoustic<br />
oscillations’, wiggles indicate that galaxies<br />
have a small but detectable preference for<br />
a particular separation distance that was<br />
imprinted into the universe shortly after<br />
the Big Bang,” Dr Brough says. “Wiggles<br />
formed as a result <strong>of</strong> acoustic waves<br />
travelling through the baryon-photon plasma<br />
before these particles cooled and separated<br />
into matter and radiation.”<br />
Since the imprinted separation<br />
distance remains constant at a fixed scale,<br />
astrophysicists are attempting to use them<br />
as ‘rulers’ against which to measure cosmic<br />
expansion.<br />
<strong>Swinburne</strong> PhD student Emily Wisnioski,<br />
from the US, explains that wiggles amount to<br />
a small preference for pairs <strong>of</strong> galaxies to be<br />
separated by a distance <strong>of</strong> 150 megaparsecs<br />
(Mpc) (a measure <strong>of</strong> distance equivalent to<br />
3.26 million light years).<br />
“The WiggleZ survey will provide an<br />
independent measure, over vast cosmic<br />
distances <strong>of</strong> this 150Mpc ‘standard ruler’<br />
that was first determined by the WMAP<br />
satellite,” she says.<br />
Taken together, the separation<br />
measurements can be fed into equations that<br />
describe the universe’s underlying contents,<br />
allowing the team to deduce properties <strong>of</strong><br />
dark energy. The more accurately they can<br />
measure distances that separate galaxies, the<br />
more can be learnt about dark energy.<br />
In 2009 the team is well past the half-way<br />
point in its observations, with the survey<br />
due for completion in 2010. With enough<br />
data to start preliminary analysis, the team<br />
is on track to confirm and measure dark<br />
energy with the greatest level <strong>of</strong> accuracy<br />
yet achieved.<br />
Since fitting dark energy into existing<br />
theoretical frameworks is impossible, this<br />
means the universe has, paradoxically,<br />
become more mysterious as observations<br />
became more powerful. As the<br />
astrophysicists see it, dark energy provides<br />
an extraordinary opportunity to challenge<br />
fundamental theories and they foresee<br />
pr<strong>of</strong>ound impacts in our understanding <strong>of</strong><br />
physics, string theory or quantum gravity.<br />
Stay tuned … ••<br />
Contact. .<br />
<strong>Swinburne</strong> <strong>University</strong> <strong>of</strong> <strong>Technology</strong><br />
1300 MY SWIN (1300 697 946)<br />
magazine@swinburne.edu.au<br />
www.swinburne.edu.au/magazine<br />
Astrophysics<br />
17
swinburne June 2009<br />
Alumni pr<strong>of</strong>ile<br />
18<br />
Dani’s<br />
journey<br />
across<br />
big art on<br />
a small<br />
canvas<br />
Graphic designer Dani Poon.<br />
Born in China and raised in Hong Kong, Dani Poon travelled nervously to Melbourne as a<br />
17-year-old to stamp Australian art into her destined way By Kellie Penfold<br />
photo: paul Jones<br />
When Dani Poon visited her parents in Hong<br />
Kong last year she found one <strong>of</strong> her most<br />
cherished childhood possessions – three<br />
stamp albums filled with philatelic treasures<br />
that she had steamed <strong>of</strong>f envelopes that<br />
arrived from around the world.<br />
The rediscovery <strong>of</strong> this childhood passion<br />
resonated with her belief that destiny works<br />
in strange ways and that the brave step to<br />
come to Australia as a teenager to study art<br />
at <strong>Swinburne</strong> <strong>University</strong> <strong>of</strong> <strong>Technology</strong> was<br />
indeed her destined path.<br />
Fourteen years later it is her own rich<br />
and colourful art that is captivating stamp<br />
collectors around the world. A freelance<br />
graphic designer who works from a<br />
Collingwood design studio shared with<br />
fellow <strong>Swinburne</strong> graduates, Dani is one <strong>of</strong><br />
the privileged few artists chosen by Australia<br />
Post to design its stamps.<br />
For Dani it is the realisation <strong>of</strong> every<br />
artist’s secret hope: immortality. “Designing<br />
stamps or money is the ultimate – your work<br />
lives on long after you are gone,” she says.<br />
Dani’s art graces stamps across the range<br />
from 15 to 55 cents and the comparatively<br />
broad $1.65 ‘canvas’.<br />
Dani feels that the combined influences<br />
<strong>of</strong> her Chinese heritage and her adopted<br />
Australian way <strong>of</strong> seeing things has<br />
endowed her with a slightly quixotic<br />
perspective. “I can be very sentimental,”<br />
she says <strong>of</strong> her designs and the stories she<br />
creates to support them, particularly those<br />
that Australia Post uses to celebrate the<br />
Chinese New Year.
June 2009 swinburne<br />
Each year Dani creates 14 stamps for the<br />
Chinese New Year series: “I am in the perfect<br />
role for my experience and background.”<br />
While Australia Post gives her free<br />
reign with the design, which starts as a<br />
series <strong>of</strong> concepts and is worked through<br />
using computer imagery, the stamps must<br />
incorporate traditional Chinese colours – red,<br />
green and gold. The stamps also have to tell<br />
the story <strong>of</strong> the animal represented. In the<br />
12-year Chinese lunar cycle 2009 is the Year<br />
<strong>of</strong> the Ox and last year, the first <strong>of</strong> the cycle,<br />
was the Year <strong>of</strong> the Rat.<br />
To develop the storyline, Dani immerses<br />
herself in animal stories (she now has a<br />
large library <strong>of</strong> animal books for inspiration<br />
and reference) and Chinese and Australian<br />
culture. More than 20 countries around the<br />
world issue stamps to celebrate Chinese New<br />
Year and Dani enjoys seeing the various<br />
global interpretations, noting with a mildly<br />
critical eye how many look like Disney<br />
characters.<br />
It takes about five months to complete<br />
each year’s series, along with the storyline,<br />
and already 2010’s Year <strong>of</strong> the Tiger<br />
stamps are almost complete. When not<br />
creating postage stamps Dani’s freelance<br />
work is wide-ranging, although her animal<br />
stamps are never far from her thoughts.<br />
She is currently working on branding and<br />
packaging concepts for Australian companies<br />
– while keeping an eye out for inspirational<br />
rabbit themes in readiness for 2011.<br />
In what could be another artistic direction<br />
change, Dani is one <strong>of</strong> six designers who<br />
have been invited to submit concepts for this<br />
year’s Australia Post Christmas stamp series.<br />
“I have lots <strong>of</strong> ideas,” she says<br />
enthusiastically, “because I’ve always<br />
been an outsider looking in on the western<br />
Christmas tradition.”<br />
It has been a creative and inspiring<br />
journey for a girl who left home for another<br />
country carrying the heavy weight <strong>of</strong> family<br />
misgivings on her shoulders.<br />
Her parents considered art a poor career<br />
choice, particularly given the financial<br />
commitment they were making towards her<br />
study. Dani’s response was to work doubly<br />
hard, 9am to 9pm six days a week. “Study<br />
and <strong>Swinburne</strong> became my life because<br />
I didn’t want to let my parents down,”<br />
she recalls.<br />
Dani also believed that no matter how<br />
artistically gifted she might prove to be, an<br />
employer wants output … not realising then<br />
that she would become her own boss and<br />
master <strong>of</strong> her own artistic destiny.<br />
She graduated with an honours degree<br />
in graphic design in 1998 and recalls her<br />
<strong>Swinburne</strong> years as a time to be free to “go a<br />
little crazy” to broaden and hone her creativity.<br />
“The main thing I learnt during my<br />
studies – and probably the most important –<br />
is about concepts. How to develop a concept<br />
quickly,” she says.<br />
“In the commercial world you don’t have<br />
time for working through an idea in your<br />
head and perfecting it. That is the difference<br />
between, say, a junior designer and an art<br />
director. The art director has a concept<br />
straight away while the junior designer is<br />
still refining their skills.”<br />
To broaden herself as an artist Dani<br />
continues to study, with her most recent<br />
foray being into botanical illustration – an<br />
exacting art that she hopes to bring into her<br />
stamp designs.<br />
“At <strong>Swinburne</strong> one <strong>of</strong> our units was<br />
on screen printing and I found it quite<br />
challenging, but now I realise it taught<br />
me something new and showed me the<br />
boundaries you have to work with in another<br />
art form,” she says.<br />
Dani is now an Australian citizen but<br />
while waiting for her visa she worked around<br />
the world and spent some time back in Hong<br />
Kong working as a graphic artist.<br />
“Everything there is geared to selling things<br />
quickly, so it was throw-away design. I like<br />
the fact my stamps last a long time and I feel<br />
good knowing people see them all the time.”<br />
Her parents, who only speak Chinese, are<br />
also starting to understand her passion and<br />
her achievement – particularly when Dani<br />
sends home large Australia Post posters<br />
issued to commemorate her work. “They are<br />
very proud,” she says. ••<br />
Contact. .<br />
<strong>Swinburne</strong> <strong>University</strong> <strong>of</strong> <strong>Technology</strong><br />
1300 MY SWIN (1300 697 946)<br />
magazine@swinburne.edu.au<br />
www.swinburne.edu.au/magazine<br />
QUESTION<br />
EVERYTHING<br />
IN THE<br />
SPOT.<br />
Attend a <strong>Swinburne</strong> Postgraduate<br />
Q&A night in the city.<br />
<strong>Swinburne</strong> <strong>University</strong> <strong>of</strong> <strong>Technology</strong> invites anyone interested<br />
in furthering their careers to attend the Postgraduate City<br />
Session in the heart <strong>of</strong> Melbourne.<br />
n Speak with academic staff<br />
n Network with other attendees<br />
n Attend course specific information sessions<br />
n Refreshments available<br />
Keynote speaker:<br />
Where:<br />
When:<br />
Register your interest.<br />
Associate Pr<strong>of</strong>essor David Austin<br />
Co-Director <strong>of</strong> the National e-Therapy<br />
Centre for Anxiety Disorder<br />
RACV Building,<br />
L2, 501 Bourke Street, Melbourne<br />
Wednesday 1 July, 6pm – 8.30pm<br />
POSTGRAD<br />
CITY SESSION<br />
1300 ASK SWIN<br />
swinburne.edu.au/citysession<br />
alumni pr<strong>of</strong>ile<br />
19<br />
CRICOS Provider: 00111D
swinburne JUne 2009<br />
Digital dust-<strong>of</strong>f<br />
for history’s watch-houses<br />
story by Julian Cribb<br />
Digital revolution<br />
20<br />
One <strong>of</strong> society’s most cherished and once<br />
unchanging <strong>of</strong> institutions, the museum, is<br />
embarking on a vast transformation: glass<br />
cabinets are being replaced by photons, static<br />
displays by lively memories and experiences<br />
from the public itself, the locked-away vaults<br />
<strong>of</strong> knowledge by a new openness and a vivid<br />
discourse with society.<br />
The evolution <strong>of</strong> the very institution that<br />
for centuries has been our window to all<br />
other evolutions is an inventive response to<br />
a changing audience; an audience that needs<br />
new stimuli to satiate a human thirst that has<br />
not diminished – curiosity.<br />
“Curiosity drives the museum: it is<br />
why we created them,” says <strong>Swinburne</strong><br />
<strong>University</strong> <strong>of</strong> <strong>Technology</strong>’s Associate<br />
Pr<strong>of</strong>essor Angelina Russo <strong>of</strong> the Faculty <strong>of</strong><br />
Design, who is examining how the digital<br />
revolution is sweeping a new freshness and<br />
meaning into bricks-and-mortar institutions<br />
with a somewhat dusty public image.<br />
“Curiosity drives their audiences; drives our<br />
need to find out about who we are and about<br />
the world we inhabit,” she says.<br />
However, the museum audience is<br />
changing. The ways people engage with<br />
the museum and what they expect <strong>of</strong> it<br />
are changing, quite radically, thanks to the<br />
new social media. Digital technology has<br />
heightened people’s expectations <strong>of</strong> engaging<br />
with other people; <strong>of</strong> a two-way flow <strong>of</strong><br />
ideas, images and knowledge; <strong>of</strong> being able<br />
to gain immediate access to the information<br />
they want.<br />
,,<br />
Museums<br />
are no longer<br />
only about<br />
exhibitions and<br />
entertainment.<br />
They are both<br />
the memory<br />
and the<br />
conscience <strong>of</strong><br />
society, actively<br />
participating in<br />
and informing<br />
the public<br />
discourse on<br />
where we are<br />
going.”<br />
Associate<br />
Pr<strong>of</strong>essor<br />
Angelina Russo<br />
These expectations <strong>of</strong> the digital<br />
generation are now reshaping the museum<br />
in ways as radical in the 21st century as<br />
were museums’ origins as a public display <strong>of</strong><br />
previously inaccessible scientific knowledge<br />
in the 19th century. But they go further still.<br />
“Humanity faces enormous challenges<br />
– the climate, water, energy, food security –<br />
and people are looking for answers to these<br />
challenges,” Associate Pr<strong>of</strong>essor Russo says.<br />
“Museums are trusted institutions for the<br />
imparting <strong>of</strong> knowledge, <strong>of</strong>ten historical<br />
but increasingly about our present and our<br />
future, and the great issues that concern us.<br />
They are no longer only about exhibitions<br />
and entertainment. They are both the<br />
memory and the conscience <strong>of</strong> society,<br />
actively participating in and informing the<br />
public discourse on where we are going.”<br />
Associate Pr<strong>of</strong>essor Russo’s research at<br />
<strong>Swinburne</strong> is exploring how four museums<br />
– the Melbourne Museum, the Powerhouse<br />
Museum, the Australian Museum and the<br />
Cooper-Hewitt National Design Museum <strong>of</strong><br />
the Smithsonian Institution – are meeting the<br />
challenges <strong>of</strong> the digital age, and how they<br />
are using the new social media to learn and<br />
network as well to share and teach.<br />
The social media, she adds, are a good<br />
deal more than merely social. “People are<br />
using them to get new knowledge, make new<br />
contacts, share pr<strong>of</strong>essional information and<br />
expertise, engage in interesting discussions,<br />
post forthcoming events and debate future<br />
practices with many, many participants.”<br />
illustration: sonia Kretschmar<br />
As a result, she says, museums are having<br />
to emerge from the ‘glass case’ era. “To<br />
remain relevant these great institutions have<br />
realised they have to change, to acknowledge<br />
that their audiences have changed<br />
fundamentally in what they expect and how<br />
they are relating to other people and groups<br />
through social media.”<br />
Increasingly she predicts that museum<br />
‘exhibits’ will consist <strong>of</strong> photons in<br />
cyberspace rather than specimens on fixed<br />
display. They will be living, with museums<br />
presenting their science and the public<br />
contributing its own knowledge and views.<br />
“You can see this happening right now<br />
on Flickr’s ‘The Commons’ project, where<br />
people upload a historical image and<br />
others, from all over the place, add their<br />
understanding or special knowledge to build<br />
a much more detailed and interesting story.<br />
Museums can contribute to this process<br />
by sharing the treasures hidden in their<br />
collections and archives – and input from<br />
the audience can make the display vibrant,<br />
interactive, much richer and more dynamic<br />
even than the best exhibit.”<br />
Museum workers too are networking<br />
online and around the world to share ideas<br />
on how to get the best from the digital age,<br />
she adds (see http://museum30.ning.com).<br />
How museums do their business may, at<br />
first glance, seem <strong>of</strong> lesser significance when<br />
contrasted with the weighty issues <strong>of</strong> the day.<br />
However, museums are also the guardians<br />
and definers <strong>of</strong> a nation’s culture and<br />
heritage and <strong>of</strong> how it sees and understands<br />
itself, both physically and as a society; they<br />
oversee something far more permanent<br />
than the crisis <strong>of</strong> the moment. Increasingly,<br />
Associate Pr<strong>of</strong>essor Russo believes, they are<br />
a vital birthing suite for the future, a place<br />
where science and society come together,<br />
whether in a monumental building or in<br />
cyberspace.<br />
As such, the social media are helping<br />
to transform one <strong>of</strong> our greatest cultural<br />
institutions and thus further transform the<br />
society and nation that they serve. ••<br />
Contact. .<br />
<strong>Swinburne</strong> <strong>University</strong> <strong>of</strong> <strong>Technology</strong><br />
1300 MY SWIN (1300 697 946)<br />
magazine@swinburne.edu.au<br />
www.swinburne.edu.au/magazine
June 2009 swinburne<br />
Will the ferryman come for<br />
climate refugees?<br />
story by Robin Taylor<br />
Tufitu Lotee has experienced the terror <strong>of</strong><br />
huge ocean waves flooding her home. Tufitu<br />
and her family live on the islet <strong>of</strong> Fongafale<br />
on Funafuti atoll, the capital <strong>of</strong> Tuvalu,<br />
midway between Hawaii and Australia. Their<br />
house is on a 100-metre-wide strip <strong>of</strong> land<br />
between the Pacific Ocean on one side and a<br />
lagoon on the other.<br />
Two years ago, in the early hours <strong>of</strong> an<br />
April morning, giant waves crashed over a<br />
levee bank <strong>of</strong> dead coral, flooding Tufitu’s<br />
house, and those <strong>of</strong> her neighbours, as she<br />
slept.<br />
Tuvaluans fear that the wave surge<br />
experienced that morning is just a frightening<br />
sign <strong>of</strong> things to come as global warming<br />
causes an inexorable rise in sea levels. The<br />
islands <strong>of</strong> Tuvalu are flat and extremely lowlying,<br />
only five metres above sea level at their<br />
highest point. The nation is expected to be<br />
one <strong>of</strong> the first to be drowned by rising seas.<br />
In 2008 David Corlett, adjunct research<br />
fellow in the Institute <strong>of</strong> Social Research<br />
at <strong>Swinburne</strong> <strong>University</strong> <strong>of</strong> <strong>Technology</strong>,<br />
spent three weeks in Tuvalu, speaking to<br />
people – including Tufitu Lotee – about<br />
their experiences and the possibility <strong>of</strong> being<br />
forced to leave their homes. The visit is<br />
recounted in his new book, Stormy Weather*,<br />
in which he looks at climate change<br />
through the Tuvaluans’ eyes, calling on the<br />
international community to act on the issue<br />
<strong>of</strong> climate change displacement.<br />
Already, Tuvaluans are experiencing the<br />
impact <strong>of</strong> rising sea levels on their staple<br />
food crop, a sweet-potato-like root vegetable<br />
known as pulaka. Families are having to<br />
raise the pit levels where they grow pulaka<br />
because incoming sea water is rotting the<br />
crop’s roots.<br />
Dr Corlett says that despite a global focus<br />
on climate change, the issue <strong>of</strong> protecting<br />
people directly affected by its consequences<br />
is largely being neglected.<br />
He says the 11,000 Tuvaluans represent<br />
just a small part <strong>of</strong> a broader displacement<br />
<strong>of</strong> potentially hundreds <strong>of</strong> millions <strong>of</strong> people<br />
because <strong>of</strong> changes to the Earth’s climate.<br />
The Intergovernmental Panel on Climate<br />
Change (IPCC) estimates a rise in average<br />
sea levels <strong>of</strong> 0.18 to 0.59 metres over the<br />
coming century. This is a conservative<br />
forecast compared with some studies that<br />
predict sea level rises <strong>of</strong> one metre every<br />
20 years. This means it is not only people<br />
living on low-lying atolls who are at risk<br />
from rising sea levels. A sea level rise <strong>of</strong> one<br />
metre would leave almost 120 million people<br />
across Asia exposed.<br />
Australia too will have its challenges.<br />
Leader <strong>of</strong> CSIRO’s Climate Adaptation<br />
Flagship Dr Andrew Ash says a “planned<br />
retreat” will be the only option for some<br />
Australian coastal communities. Of course,<br />
Dr Corlett points out, for many Pacific Island<br />
communities retreat is not an option.<br />
Dr Corlett has a background in refugee<br />
protection and while he does not like the<br />
term ‘climate refugees’, which he says is<br />
legally meaningless, he believes the world<br />
needs to adopt a coordinated response to the<br />
issue <strong>of</strong> climate change displacement.<br />
“People fleeing environmental factors<br />
are different from refugees in that they are<br />
not facing persecution and normally do not<br />
cross international borders, but they are<br />
similar to refugees in that they are ‘forcibly’<br />
displaced,” he says.<br />
Dr Corlett believes an international legal<br />
agreement is needed to ensure that people<br />
who are displaced by climate change can be<br />
protected.<br />
“With projections that tens or even<br />
hundreds <strong>of</strong> millions <strong>of</strong> people will be<br />
displaced due to climate change, the<br />
international community needs to establish<br />
an agreement that defines who might be<br />
entitled to protection as a result <strong>of</strong> climaterelated<br />
factors and what that protection<br />
might be,” he says.<br />
The UN Convention Relating to the Status<br />
<strong>of</strong> Refugees defines the need for protection<br />
from persecution but, for people displaced<br />
by climate change, at what point are they<br />
owed protection? When does an environment<br />
become uninhabitable?<br />
“These questions are complicated,”<br />
Dr Corlett says. “An environment that may<br />
be uninhabitable for one community may<br />
provide material sustenance or social and<br />
spiritual values to another.”<br />
Dr Corlett has seen first-hand what is at<br />
stake for people whose entire homelands<br />
could be submerged. He argues passionately<br />
for the international community to get<br />
behind mitigation and adaptation strategies.<br />
photo: Torsten Blackwood/AFP/Getty Images<br />
* Stormy Weather: the<br />
Challenge <strong>of</strong> Climate<br />
Change and Displacement<br />
(2008) by David Corlett is<br />
published by <strong>University</strong> <strong>of</strong><br />
New South Wales Press.<br />
Aside from trying to reduce the global<br />
consumption <strong>of</strong> greenhouse gases, he says<br />
the type <strong>of</strong> direct response is likely to be a<br />
need for technical interventions, such as sea<br />
walls, as well as building the capacity <strong>of</strong><br />
governments and communities to respond to<br />
different levels <strong>of</strong> impact depending on their<br />
particular circumstances.<br />
While the Australian Government has<br />
committed $150 million over three years to<br />
help countries in the region adapt to climate<br />
change, Dr Corlett suggests that migration<br />
is another way for the global community<br />
to adapt to the dislocation consequences <strong>of</strong><br />
climate change.<br />
Meanwhile the Tuvaluans are trying to<br />
adapt to rising sea levels now by replanting<br />
mangroves to curb coastal erosion and by<br />
establishing a marine sanctuary to protect<br />
coral and other marine resources. Tragically,<br />
Dr Corlett feels such efforts are likely to<br />
ultimately be futile. ••<br />
Contact. .<br />
<strong>Swinburne</strong> <strong>University</strong> <strong>of</strong> <strong>Technology</strong><br />
1300 MY SWIN (1300 697 946)<br />
magazine@swinburne.edu.au<br />
www.swinburne.edu.au/magazine<br />
environment<br />
21
swinburne June 2009<br />
A modern-day oracle on<br />
Oceanography<br />
22<br />
Like gypsies read tea leaves to foresee the future, researchers can read<br />
something <strong>of</strong> our future in the winds and waves. However, this modern soothsaying<br />
relies on masses <strong>of</strong> information, data that <strong>Swinburne</strong> is collating to build the world’s<br />
first complete picture <strong>of</strong> ocean wave activity By Julian Cribb<br />
In the secret life <strong>of</strong> ocean waves are<br />
prognostications <strong>of</strong> the human future.<br />
For more than 30 years a squadron <strong>of</strong> polarorbiting<br />
satellites and a vast fleet <strong>of</strong> buoys<br />
have monitored the oceans, trying to get a fix<br />
on the size, frequency and power <strong>of</strong> its waves<br />
because, just as a thermometer reveals the<br />
patient’s state <strong>of</strong> health, waves <strong>of</strong>fer insights<br />
into the Earth’s climatic temperament.<br />
A deep knowledge <strong>of</strong> waves can tell<br />
us how to design safer, stronger, more<br />
efficient marine structures – or it may reveal<br />
aspects <strong>of</strong> how our world is changing,<br />
indecipherable by any other means, says the<br />
Vice-Chancellor <strong>of</strong> <strong>Swinburne</strong> <strong>University</strong> <strong>of</strong><br />
<strong>Technology</strong>, Pr<strong>of</strong>essor Ian Young.<br />
Like the augurs <strong>of</strong> old, Pr<strong>of</strong>essor Young<br />
hopes we can read something <strong>of</strong> our future<br />
in the winds and waves by amassing and<br />
analysing all the available data collected on<br />
them over a generation. With the help <strong>of</strong> an<br />
Australian Research Council Linkage Grant<br />
and in partnership with Perth-based company<br />
RPS MetOcean, he is attempting to assemble<br />
the world’s first complete picture <strong>of</strong> ocean<br />
wave activity.<br />
“In the sizes <strong>of</strong> waves you can see the<br />
fingerprints <strong>of</strong> the El Niño that is causing<br />
the present huge drought in south-eastern<br />
Australia,” Pr<strong>of</strong>essor Young explains. “You<br />
can see how the low pressure systems<br />
change latitude.”<br />
The size, frequency and location <strong>of</strong><br />
waves – great and small – are another way<br />
to study how the Earth’s atmosphere and<br />
oceans interact; a way to discern on a global<br />
scale how vigorously they work together as<br />
the planet warms, like a pot <strong>of</strong> water being<br />
heated on a stove.<br />
The task is gargantuan. Seven US and<br />
European satellites have each been recording<br />
the height <strong>of</strong> the waves passing in a swathe<br />
beneath their radar altimeters every second<br />
<strong>of</strong> the day for more than quarter <strong>of</strong> a century.<br />
From 200 kilometres or more in space they<br />
can estimate the height <strong>of</strong> a wave within 40<br />
to 50 millimetres, and from this much can be<br />
deduced about the winds, weather systems,<br />
currents and other conditions that produced<br />
it. Together they have generated a massive<br />
12 terabytes <strong>of</strong> information.<br />
However, each <strong>of</strong> the satellites has<br />
a slightly different instrument and their<br />
data have been collected and stored using<br />
different programs.<br />
The data from each must be laboriously<br />
compared with the others and ground-truthed<br />
for accuracy against a fleet <strong>of</strong> wave-riding<br />
buoys. Then they must be harmonised into<br />
a single set that scientists and engineers can<br />
interrogate to find out what is afoot with the<br />
world’s waves.<br />
“Waves have a great advantage over<br />
other indicators <strong>of</strong> the planet’s condition,<br />
such as temperature or wind speed,”<br />
Pr<strong>of</strong>essor Young says. “These vary widely<br />
and rapidly, so when you look at them you<br />
inevitably get a lot <strong>of</strong> ‘noise’, which makes<br />
it hard to interpret what is going on. Waves<br />
smooth all that out. They enable us to read<br />
the average wind speed at the sea surface<br />
from space over a longish period <strong>of</strong> time,<br />
without recording all the gusts. This tells<br />
us a lot more about the overall conditions<br />
that produced the waves. We’ll be able to<br />
see more subtle changes that may have<br />
previously been masked by the amount <strong>of</strong><br />
noise in the measurements.<br />
“If, for instance, the winds are changing as<br />
a result <strong>of</strong> global warming, these changes will<br />
be reflected in the waves that they generate.<br />
We can also look at changes in the extremes.”<br />
Though each satellite monitors only<br />
a narrow swathe <strong>of</strong> ocean as it passes<br />
overhead, eventually, as the Earth rotates,<br />
these swathes cover the entire planet and a<br />
detailed global picture <strong>of</strong> wind and wave<br />
conditions over years can be assembled,<br />
he explains.<br />
Besides helping to identify global<br />
changes before they come on us unawares,<br />
<strong>Swinburne</strong>’s work has a supremely practical<br />
application: a better knowledge <strong>of</strong> wave<br />
heights – and hence <strong>of</strong> the frequencies <strong>of</strong><br />
severe storms – can be used to design safer<br />
ships, <strong>of</strong>fshore platforms, harbours, jetties
June 2009 swinburne<br />
Oceanography<br />
23<br />
Hs (m) January<br />
6<br />
Hs (m) August<br />
6<br />
60<br />
60<br />
40<br />
5<br />
40<br />
5<br />
20<br />
4<br />
20<br />
4<br />
0<br />
3<br />
0<br />
3<br />
−20<br />
2<br />
−20<br />
2<br />
−40<br />
1<br />
−40<br />
1<br />
−60<br />
−60<br />
50 100 150 200 250 300 350<br />
0<br />
50 100 150 200 250 300 350<br />
0<br />
and other marine structures.<br />
“To design a platform you need to<br />
know the typical wave height in a one-in-<br />
100-year storm, so the top <strong>of</strong> the platform<br />
will be above the waves. Every extra<br />
metre you don’t need to build can save<br />
you $10 million,” Pr<strong>of</strong>essor Young says.<br />
Likewise marine architects can study<br />
the conditions along the sea routes their<br />
new vessels will sail based on decades<br />
<strong>of</strong> information, and shape the design<br />
accordingly. Planners <strong>of</strong> coastal cities and<br />
ports can better adapt their seafront to the<br />
extremes expected under climate change.<br />
Industry partner RPS MetOcean hopes<br />
to obtain precise information about ocean<br />
conditions in specific locations out <strong>of</strong> the<br />
new dataset to improve the design quality<br />
and efficiency <strong>of</strong> their projects.<br />
“As physical oceanographic consultants<br />
working mainly with the <strong>of</strong>fshore oil and<br />
gas industry, our job is to quantify the<br />
marine environment their structures are<br />
likely to have to withstand over the coming<br />
50 to 60 years,” explains MetOcean’s Steve<br />
Buchan. “We need to be able to predict the<br />
future wave climate in particular, because<br />
waves are usually the greatest determinant <strong>of</strong><br />
the survival <strong>of</strong> <strong>of</strong>fshore structures, typically<br />
exerting more force than winds or currents.”<br />
Optimising the design <strong>of</strong> these steel<br />
leviathans requires a deep insight into likely<br />
wave conditions now and in the future. For<br />
the first time, the <strong>Swinburne</strong> project <strong>of</strong>fers<br />
The average wave<br />
height around the<br />
world (Hs), measured<br />
in metres, during the<br />
month <strong>of</strong> January (left)<br />
and August (right),<br />
obtained from the<br />
satellite database.<br />
The colour bar to the<br />
right shows the scale<br />
from 0 to 6 metres.<br />
Note the high waves<br />
in the North Atlantic<br />
and North Pacific<br />
during the northern<br />
hemisphere winter<br />
(January). The Southern<br />
Ocean is rough all year,<br />
with the maximum<br />
waves occurring in the<br />
southern hemisphere<br />
winter (August).<br />
that information planet-wide, Mr Buchan<br />
says. “We will use the data to improve<br />
and calibrate the models we use to predict<br />
ocean conditions so platform developers can<br />
design to a less than one-in-10,000 chance <strong>of</strong><br />
structural failure.”<br />
RPS MetOcean is one <strong>of</strong> a handful<br />
<strong>of</strong> companies worldwide with this sort<br />
<strong>of</strong> capability, and early access to the<br />
consolidated global wave data will give<br />
Australia a clear competitive edge in the<br />
field, he adds. ••<br />
Contact. .w<br />
<strong>Swinburne</strong> <strong>University</strong> <strong>of</strong> <strong>Technology</strong><br />
1300 MY SWIN (1300 697 946)<br />
magazine@swinburne.edu.au<br />
www.swinburne.edu.au/magazine
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