Tarang - Cummins College of Engineering for Women

TA R A NG Volume 7 / Issue 2 - April 2012
EDITORIAL
Hello friends,
As always the new semester begins with great enthusiasm, and with it comes a
new edition of ‘Tarang’. Yet again, we have articles regarding newer technologies,
some of which are poised to change the electronics world completely. Articles about
ecoATM, Aakash Tablet and QR codes are of great relevance today. We then take a
plunge into bioelectronics with a cancer detecting electronic nose. We also have a
very informative article about PCB designing. To top it all up, we have the
achievements of all students and staff in the last semester.
We take this opportunity to express our gratitude to Prof S. Kulkarni and
Prof Manasi Pathade for their guidance and support. We would like to thank all
our readers and contributors for their enthusiasm and support.
- Tarang team
Message From HOD
1. Tarang magazine is a platform for the students of the E &TC department
to give a fillip to their written expression in the form of articles on
technical and general subjects.
2. The magazine also is one of the means for students to keep abreast with
the latest developments in the electronics and telecom field.
3. The book review is expected to create the abilities in the students to write
an intellectual critique of a book written by a reputed author.
4. I am sure, this magazine will go a long way in preparing our students to
face the outside world on an intellectual plane.
5. I congratulate the editorial team and the contributors of articles and the
book review.
1
Prof. Sukumar Kulkarni
HoD, E & TC Dept.
comp1 / D / trang / March 2012 / March Tarang 2012

TA R A NG Volume 7 / Issue 2 - April 2012
THE INCREDIBLY SHRINKING TRANSISTOR
Saili R. Chougule (TE E&TC B)
F or most of us the word ‘Transistors’ brings
about a myriad of emotions. We’ve already dealt with
a complete subject on the tiny device and I‘am sure
almost everyone shuns at the memory of their SSDC
exam. So what’s the big deal about the ‘Transistor’
Why is it so important Or is it
In answer to this many eminent scientists as well
as most of our teachers would probably tell us – “Forget
inventions like air conditioning, television, computer and
the Internet. The single most important invention of the
20th century was the transistor.”
The little-talked-about transistor is the building
block of the processor. Without the transistor, our
servers would be almost three stories high and our
laptops would have been props on Star Trek. Our
televisions would still use vacuum tubes, and our cars
wouldn’t guide us to the nearest restaurant. Without
the transistor, would Microsoft Corp. and Google Inc.
become giants Would geeks have become the cool,
rich guys driving BMWs
Probably not.
Sixty years ago — on Dec. 16, 1947, to be exact
the transistor was invented at Bell Labs. The first
transistor was about the size of the palm of a hand,
with a depth of two matchboxes stacked on top of each
other. The discovery of transistors has ignited a series
of advances that has changed the way people listen to
their favourite music, do their jobs, pay their bills,
educate themselves and buy everything from books
to used toaster ovens. Transistors inside pacemakers
keep our hearts going. The PC and the Internet have
been phenomena, but how usable and ubiquitous would
they be without millions of tiny transistors running
inside laptops, desktops and servers Intel estimates
that about 10 quintillion (or a 1 followed by 19 zeros)
transistors are shipped each year. That’s 10,000 times
the number of ants on Earth!!
After so many advances and miniaturization one
would wonder, what is left for us to do now The answer
is plain and clear- more miniaturization, smaller
devices, more functions in lesser chip space.
We shall now discuss emerging technologies
which strive towards the same goal-
CARBON NANOMETER TRANSISTORS
When today’s transistors (silicon metal-oxidesemiconductor
field-effect transistors, or Si MOS-
FETs) are shrunk, they lose their ability to effectively
control electric current, a problem called short-channel
effects. For this reason, researchers have been
modifying the Si MOS-FET design in an attempt to make
the transistor perform better at sub-10-nm gate lengths,
but these devices still face performance challenges. In
a new study, the engineers have discarded silicon
altogether and turned to single-walled CNTs.
Engineers have built the first carbon nanotube
(CNT) transistor with a channel length below 10 nm.
Not only can the tiny transistor sufficiently control
current, it does so significantly better than predicted
by theory. It even outperforms the best competing
silicon transistors at this scale, demonstrating a
superior current density at a very low operating voltage.
Due to their superior electrical properties and
ultrathin (1-2-nm diameter) bodies, CNTs have been
proposed as a replacement for silicon for several years.
Their ultrathin bodies should allow CNTs to maintain
gate control of the current in a transistor even at short
channel lengths, potentially enabling them to avoid
short-channel effects. The IBM team’s sub-10-nm CNT
transistor is the first to demonstrate these advantages.
Until the engineers built the sub-10-nm CNT
transistor, no one knew that they would perform this
well. Theories predicted that CNTs with ultrathin
channels would experience a loss of gate control as
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TA R A NG Volume 7 / Issue 2 - April 2012
well as a loss of drain current saturation in the output,
both of which would degrade performance.
The reason that theory projected a loss of gate
control for nanotube transistors below 15 nm or so is
related to other unique transport physics for nanotube
devices. The carrier effective masses (mass of
electrons) are very small for nanotubes compared to
other semiconductors, meaning they can tunnel or leak
in the device more easily. This is one of the reasons
that theories had suggested a loss of gate control,
because these ‘light’ carriers would begin tunnelling
uncontrollably when the lengths became too small.
When the engineers fabricated several individual
transistors on the same nanotube, the smallest having
a channel length of just 9 nm, they observed that the
tiniest transistor exhibited superb switching behaviour
and drain current saturation, defying predictions. When
compared to the best-performing sub-10-nm Si
transistors of varying designs and diameters, the 9-
nm CNT transistor had a diameter-normalized current
density of more than four times that of the best silicon
transistor. And it exhibited this impressive current
density at a low operating voltage (0.5 volts), which is
important for reducing power consumption.
QUANTUM TRANSISTORS
The word quantum never fails to fascinate us.
Make a quantum sized transistor and probably the face
of the electronics industry will change forever. So great
is the allure of quantum devices that several types are
under development. One variant is the double–electronlayer
tunneling transistor (Deltt) built by researchers
at Sandia National Laboratories, in Albuquerque, N.M.
Structurally, the Deltt positions an insulating barrier
between two two-dimensional wells. In operation,
electrons quantum mechanically tunnel from one well
to the other through the barrier. Device speed benefits
from the tunneling process, which is much faster
than the drift of electrons, let alone of slower holes,
across a channel. Sandia researchers label the two
wells as source and drain, to correspond with
conventional transistors.
A well is formed by surrounding one region holding
a bevy of free-electron energy states with another
region having a dearth of them. The well is deemed
two-dimensional when it is so narrow in one dimension
that electron motion is restricted to the plane of the
well. An electron can tunnel through the barrier only if
its energy and its momentum in the plane of the well
are both conserved. In other words, an electron can
tunnel only if the energy state of the quantum well on
the other side of the barrier is equal in energy and
momentum to the state the electron originally occupied.
In general, when no voltage is applied to the device,
there are no matching states in the two wells, and the
device is off. But when the energy level of the electrons
in one well is shifted appropriately, the energy states
line up opposite each other and tunnelling occurs—a
condition known as resonance. Applying voltage to a
control gate or biasing one of the wells relative to the
other will shift the energies. In practice, both voltages
are applied in operating the Deltt.
Another variant of quantum transistor is the much
“quantum dot” it consists of just seven atoms in a single
silicon crystal. Despite its incredibly tiny size - a mere
four billionths of a metre long - the quantum dot is a
functioning electronic device, the world’s first, created
deliberately by placing individual atoms. It can be used
to regulate and control electrical current flow like a
commercial transistor but it represents a key step into
a new age of atomic-scale miniaturisation and superfast,
super-powerful computers.
The discovery was reported in the journal Nature
Nanotechnology by a team from the UNSW Centre
for Quantum Computer Technology (CQCT) and the
University of Wisconsin-Madison.
The technology for placing individual atoms on a
surface, the scanning tunnelling microscope, has
existed for two decades. But until now nobody has
been able to use it to make atomic-precision devices
capable of processing electronic inputs from the
macroscopic world. Although the quantum effect
transistor marks a critical milestone toward what
many people are calling ‘nanoelectronics,’ much
developmental work remains to be done.
Manufacturing and interconnecting such small
structures reliably in production quantities demand
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TA R A NG Volume 7 / Issue 2 - April 2012
techniques that have yet to be developed. Another
impact of their minute size is that whole new circuit
architectures will have to be devised.
Who knows some years forth semiconductor
technology might become as redundant as vacuum
tubes are today.
G G G
AMAZING INVENTION !!! ELECTRONICS IN
DETECTING AND CURING ‘CANCER’
Sejal Badgujar (SE E&TC)
In what can prove to be a breakthrough in
detecting cancer, a research team at Technion- an
Institute of Technology in Israel has developed an
electronic nose, which can sniff out malignant head
and neck cancer tumours which are often hard to
diagnose otherwise.
According to them, it picks up on microscopic
chemical changes that are emitted in the breath of
people with the two cancers, compared to those
without the disease.
The Nano Artificial Nose has been tested on a small
sample group but there are hopes it could one day be
used as a routine test on the cancers. Patients develop
tumours of the head, neck, salivary glands and mucus
membranes. These cancers are hard to spot early and
are often not diagnosed until the cancer has spread to
other parts of the body. In fact, for their study, the scientists
collected breath samples from 82 patients who had head
and neck cancer, lung cancer or were cancer-free.
Cancer researchers at Albert Einstein College of
Medicine of Yeshiva University have found a biomarker
in head and neck cancers that can predict whether a
patient’s tumour will be life threatening.
The biomarker is considered particularly promising
because it can detect the level of risk immediately
following diagnosis. This discovery could become a
component of a new test to guide how aggressively
those with head and neck tumours should be treated.
Previous efforts to identify biomarkers for guiding
treatment of head and neck cancer have not developed
anything clinically useful for patients.
Head and neck cancers, the sixth most common
malignancy among men worldwide, most often affect
the mouth, back of the throat and larynx (voice box).
Smoking and alcohol use are major risk factors. Only
half of patients are still alive more than five years after
diagnosis — a survival rate that hasn’t changed in 40
years.
In their study, researchers took tissue samples
from tumours and nearby healthy tissue of 123 head
and neck cancer patients at Montefiore and measured
levels of 736 members of a class of RNA molecules
known as microRNAs. Certain members of this family
of RNAs, which regulate protein abundance in cells,
are abnormally expressed in head and neck cancers
as well as every other malignant cell type yet
examined. Of all the microRNAs measured, one in
particular — miR-375 — stood out for being the most
down-regulated (i.e. expressed at low levels) in head
and neck tumours compared with its levels in adjacent
normal tissue.
There entire head and neck cancer group is
working to identify and refine additional biomarkers to
create a useful clinical test or personalized genetic
signature to help individual patients get the best
possible treatment.
We can judge from above invention that everything
can be done with the help of ‘ELECRONICS’
G G G
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TA R A NG Volume 7 / Issue 2 - April 2012
This ATM takes your old mobiles, hands back cash!!
Kalyani S. Upadhye (SE E&TC B)
W e always talk about new tablets,
laptops and other devices. But what do we
do the older ones Here is the solution-
EcoATM.
The machine can recycle gadgets
giving them a better home. It is twice the
size of our regular ATM. It has a large touch
screen and a big metal mouth where we place our old
mobile or MP3 player or any other gadget. The next
step the machine does is that it takes pictures of the
device to find out what shape it is in. Then we connect
our gadget to the machine. The machine figures out
whether the devices internals are working properly or not.
When its analysis is completed, it
gives a menu of the number of electronics
recycling companies that are willing to pay
for the gadget. If we accept, the company
will recycle the gadget to obtain the usable
metals from it. For eg. if we give an old
phone which is in complete disorder, the
machine might still return a dollar.
E-waste is increasing and it is difficult to handle
it. Collection bins for E-waste is also very rare. Online
selling can also be done but it is a bit tedious. Also
with this machine we avoid online fees. Hopefully we
will be seeing more of these machines in the near future.
G G G
QR Codes
Neha Shah (SE E&TC B)
Not too long ago, I heard about young adults in
Japan getting QR codes tattooed on their bodies.
Crazy! Isn’t it I was already Googling ‘QR code tattoos’
to uncover the truth. You only need to take a look to
find QR codes on arms and faces. Not only that we
see QR codes in advertisements, business cards,
posters, in malls, on t-shirts and many more places.
So what is a QR code QR code stands for Quick
Response code. They have actually been in existence
since 1994, before the internet was widely used and
iPhones didn’t even exist. Thanks to Denso Wave, who
created them, QR code is one of the most popular
types of two-dimensional barcodes and was designed
to allow its contents to be decoded at high speed.
Wikipedia has a QR code specific website, QRpedia,
a mobile web based system which uses QR codes to
deliver Wikipedia articles to those in their preferred
language and was only unveiled in April last year.
Anyone who has a cellphone with a camera can
read QR codes. All you need to do is download a reader
(software) which is freely available on many websites,
scan the code and you are taken directly to the related
URL .The data can be anything, your contact numbers
or any text, a URL …just anything and it can certainly
contain data that is more than 100 times larger than
data in typical barcodes. You can also generate a QR
code for your data. Like the one below will allow you
read the same article on your mobiles.
Let’s see few interesting applications of these
magical codes:
Books
Tickets
Restaurant menu cards
Discount coupons
Google maps
RSS feeds
Youtube videos
PowerPoint (Keynote on a Mac)
Newspapers (especially Pune Mirror)
I really hope someone out there will begin to utilize
QR codes for research in these ways. It’s not the
future, it’s now !!
G G G
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TA R A NG Volume 7 / Issue 2 - April 2012
INNOWAYS - 2012
National level project competition organized by KPIT Cummins
A ndroid is a Linux-based operating system for
mobile devices such as smart phones and tablet
computers. It is developed by the Open Handset
Alliance led by Google.It has seen a number of updates
since its original release, each fixing bugs and adding
new features. Each version is named, in alphabetical
order, after a dessert - 2.3 Gingerbread, 3.0
Honeycomb, 4.0 Ice Cream Sandwich, Key Lime Pie
(Expected at the end of 2012).
Android has a large community of developers
writing applications (“apps”) that extend the
functionality of the devices. I made an android app that
can be used as a PowerPoint assist i.e. while giving a
PowerPoint presentation an android phone can be
used to change slides.
Power point presentation is the most widely used
tool in college by both students and our professors.
And mobile phone another most commonly used
device. Clubbing the two together seemed fascinating.
I thought this would be a useful Mobile Application and
probably very convenient too.
The basic ideas were
1. Establishing a wireless mode of communication
between the laptop and the mobile phone.
2. Development of an environment.
3. Using mobile as a mouse.
Two separate codes were written, one for the
server (laptop) the other for client (phone). Java was
used to do the programming. I used eclipse (software)
As a reiteration of commitment to enhancing
employability of the student community, Eaton and
Cummins College of Engineering in association with
Confederation of Indian Industries introduced the
“Garnishing Talent” program. The program was
focused on equipping students from vernacular, semivernacular
and rural background with appropriate soft
and social skills critical to achieve individual and
professional success. The program leveraged Eaton’s
6
Chandni Sahay, 1 st prize winner,Innoways 2012
to build up the java platform and added android plugins
to it. In this application, I used java classes that
helped me put the function of the mouse to go to the
next slide and the previous slide. These functions were
put in the lower volume button and the upper volume
button respectively.
This project was made by me for a project
competition,Innoways, organized by KPIT Cummins
for third year students. There were two rounds of the
competition. First round was held in our college and
the final round took place in KPIT Cummins, Hinjewadi
where it was held amongst the winners of different
colleges.
Winning of this competition was made possible
by sheer guidance of our professors. I would like to
express my heartfelt gratitude to HOD Sir,
Prof S. Kulkarni for his guidance and moral support,
Prof. Anita Patil for encouraging me throughout, Prof
Praful Meshram , IT department for giving an insight
into this project.
I would thank our Principal,Dr. Madhuri Khambete
Ma’am, our college and KPIT Cummins for giving us
such an auspicious platform and this knowledge
enriching opportunity. I would also like to thank KPIT
Cummins officials who came as judges to our college,
Krishnan Kutty Sir, Rajendra Kango Sir and Swapnil
Bhoyar Sir for their kind and supportive attitude towards
us and also for giving us valuable inputs and
suggestions on our projects.
G G G
Garnishing Talent - An Innovative Endeavor
For Improvement
Gunjan Phalak (TE E&TC B)
association with leading academic institutions in Pune
region and facilitated interactive sessions between
students and experts from Eaton. The participants of
this program included 90 students from various
departments’ namely mechanical, instrumentation,
information technology and electronics &
telecommunications as identified through a defined
assessment process.

TA R A NG Volume 7 / Issue 2 - April 2012
Many students from the Electronics and
Telecommunications Branch were privileged to have
benefitted from this program that included various
topics in the field of communication skills along with
practical implementations of Group Discussions and
Personal Interviews with experienced mentors from
Eaton Corporation. The Garnishing Talent Program was
inaugurated on 4th January 2012, in the presence of
eminent Corporate Lords. In order to facilitate effective
learning of students, 10 Buddies were appointed so
as to create a link between the students and mentors
from the Industry. Buddies included Gunjan Phalak
(Student Co Ordinator), Isha Ramdasi, Manasi
Rashinkar, Sukhada Sathaye, Ishwari Unhale from the
E&TC branch.
In the 2 months that the program was
implemented between 6th Jan and 7th March, students
were made acquainted with varied skills such as
English Basics, Presentation Skills, Social Networking,
Time Management, Working with Generations and
many more. Every Saturday, a Role Model Session
was arranged with successful Corporate.
The program was a great learning experience and
facilitated exposure to the Corporate world outside of
the college. A big round of applause for Eaton
Corporation, CII and Cummins College is in order for
this innovative endeavor that they have jointly started
for the upcoming Engineers.
G G G
KiCAD: Easy Tool To Design Your PCBs
Priyanka Kulkarni (BE E&TC)
KiCad is an open source (GPL) integrated utility
package that facilitates the use of the various programs
required to draw schematics, layout PCBs, generate
and check the production files. For manufacturing any
PCB we have to go throw following procedure :
KiCad helps us to follow this quickly and efficiently.
The default KiCad window consists of 5 buttons (in
order from left to right )the sub programs are:
· EESchema - a schematic program
· CVpcb - a program linking schematics to
footprints
· PCBnew - a PCB layout tool
· GerbView - a gerber viewer
· Bitmap2Component - a program for converting
bitmaps for use on PCBs etc.
Creating a new project is the first step to start
with. In this project, all the files corresponding to one
PCB are saved. Since we will be dealing mostly with
postscripts, we will mainly concentrate on the first
three sub-programs.
EESchema :
1. We can draw circuit diagrams using this 32 bit
software. Electrical connectivity is defined in these
schematics using graphic representation of an electronic
device. A schematic mainly consists of components,
wires, labels, junctions, buses and power ports.
Features :
· We can select different components using built
in libraries.
· We can also create new components as per our
requirement.
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TA R A NG Volume 7 / Issue 2 - April 2012
· Hierarchical drawings, multi-sheets diagrams can
be drawn.
· There is hence no real limitation on the component
count, number of component pins, connections,
and sheets.
· Many keyboard shortcuts are available so drawing
become easy. For example,use of ‘m’ and ‘r’ to
move and rotate your modules . One can also
use ’v’ for editing value of component.
· Power connections can be easily shown using built
in Power library.
· Automatic generation of the bill of material.
· For clearness in the schematic, we can place
purely graphical elements like bus entries,
comments, and dotted lines to draw frames.
Some conventional prefixes are used in naming
any circuit. Example: resistors are named as Rn,
transistors as Qn , ICs as Un and so on .
4. The final step in EESchema is to generate the
netlist. A netlist is a file which describes electrical
connections between the components.
A netlist thus contains :
• The list of the components
• The list of connections between components,
called equipotential nets.
CVPCB:
CVPCB allows us to assign each component that
appears in the netlist created by the Schematic
program to the name of the footprint (i.e. the physical
appearance of the component) which will represent it
on a printed circuit board, and adds this information to
the netlist. We see a list of our symbols at the left and
possible footprints at the right. Components can be
assigned to their corresponding footprints manually or
automatically. We can create our own footprints also.
Mechanical dimensions of each component are
important. Pad sizes, pin to pin distance, drill size
should be verified.
2. The control of the electrical rules (control E.RC.)
is a facility provided by KiCad, which allows the
detection of incorrect connections or omissions
in the schematic.
3. The next step is to annotate. There can be many
resistors or ICs in one circuit diagram. To give
each component a unique identity or labels, we
must annotate the circuit diagram. Click the
Annotate Tool, set the parameters if you want, and
KiCad automatically numbers all the components.
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TA R A NG Volume 7 / Issue 2 - April 2012
PCBNEW :
Here the actual layout is designed.
· On the right hand side, different layers in the PCB
are mentioned. PCBNEW works on 16 layers of
copper, plus 12 technical layers (silk screen, solder
mask, component adhesive, solder paste, drawings
and comment etc.)Mostly we use front layer as
component layer and back layer as solder layer.
Every time choose your working layer properly.
· First we should approximately decide the size of
our PCB then draw the border of PCB with the
help of graphic line.
· Then read the netlist. The modules will appear on
the screen. Stuff them into the PCB outline you
made.
· Place the components in manner you want.
· PCBNEW has an internal resolution of 1/10000
inch. Modules can be rotated to any angle, with a
step of 0.1 degree. Pads can be circular ,
rectangular, oval or trapezoidal shape. We can
add pads or extra modules later if needed.
· The Module Editor can be accessed from the
PCBNEW toolbar. The Editor allows creation or
modification of a module from the PCB or a library
and then saved to either.
· Rat nest (real time the hairline indication) helps
us to find out missing tracks. We cannot connect
two pads without a connection specified in the
netlist, thus maintain accuracy.
· 3D viewer is provided to display the circuit board
in 3 dimensions.
· PCBNEW has an active Design Rules Check
(DRC) which automatically indicates any error of
track layout in real time.
· A netclass (Click on design rules -> design rules)
specify:
• The width of tracks and via diameters and drills.
• The clearance between pads and tracks (or vias)
We can create our new netclass to change the
track width or clearance if required.
The last but the important step in manufacturing
point of view is to export the files or to plot the points in
the format you want. Mostly we use POSTSCRIPT
format. File got save in .ps format. Plot the layers you
want such as front layer, back layer, front masking layer,
silk print layer etc. Generate drill chart along with this.
Give these files for film printing and then to print actual
circuit board.
In this way using KiCad we can easily develop
our own PCB. This software is freely available on
internet. So you can download it along with libraries.
Try this and enjoy the designing of your own Printed
Circuit Boards.
G G G
The Four Engineers
Once there were four engineers traveling in a car.
While they were traveling to their destination the car stalled on them.
The first engineer who was a mechanical engineer said, “don’t worry it’s probably engine
problems. I”ll just pop open the hood and take a look at the motor”.
The second engineer, who was an electrical engineer, said, “no, no ,no. it’s an electrical
problem. Let me look at the fuse box and I’ll find the problem”.
The third engineer, who was a chemical engineer, said, “its just a problem with the fuel.
Flush all of the gas and replace it with new gas and you’ll see that the car will be fine.”
Then the three engineers looked at the fourth who was a “Microsoft” computer engineer.
And his response was... “Why don’t we just get out of the car, shut all of the doors, and then
open them again and get back in and start it!”
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TA R A NG Volume 7 / Issue 2 - April 2012
AAKASH LCAD TABLET THE CHEAPEST TABLET YET
Ankita Paranjpe (SE E&TC C)
T he Aakash LCAD (low cost access device) is
an Android tablet computer jointly developed by the
London-based company Datawind with the Indian
Institute of Technology, Rajasthan. It was launched on
5th October 2011. The tablet was developed as an
initiative by the Ministry of Human Resources and
Development under Government of India. The basic
version costs a student only Rs 1,500 which is around
$35. This is because of the subsidies that are offered
to students and institutions using the tablet. The
commercial version which would have a few more
features than the basic version would be marginally
costlier. However, the Aakash LCAD Tablet still holds
the distinction of being the world’s cheapest computing
device.
When we talk of the specifications provided in the
tablet, experts believe that they are good but could have
been better. The PC tablet is not meant for gaming
purpose. It has in fact been developed especially for
students, and it would be right to say it meets that
purpose. To understand this we must first take a look
at the general specifications of the tablet.
Specifications of Aakash LCAD Tablet –
Size – 190.5×118.5×15.7mm
Screen size – 7" resistive
Weight – 350gms
Operating System – Android 2.2
Processor -366 MHz, plus Graphics
Accelerator and HD Video Co-processor
Memory -256 MB RAM
Storage –2GB Micro SD card expandable up
to 32GB
Connectivity – 2 USB ports (full sized)
Battery – 2100mAh
Camera – External USB
Network – Wi-Fi Enabled
Web Browser – DataWind Accelerated
Browser
Modem – Inbuilt cellular and Subscriber Identity
Module (SIM)
Cost – Rs 2,276 (approximately $50) –
Approximately Rs. 1500 for students
The Salient Features of the Tablet
The tablet can also be used as a mobile phone
as it has facility for inserting SIM card and
headphones
The device is Wi-Fi and GPRS enabled
It can also function as a 3G if dongle is enabled
The formats supported by the image viewer
are –JPG, PNG, GIF and BMP
The audio formats the device supports are –
WMA, AAC,MP3, WAV and AC3
The tablet supports the following video formats
– MPEG2, MPE4, FLV and AVI
Document formats supported by the system
are – DOCX, DOC, PPTX, PPT, XLSX, XLS,
ODP and ODT
It also has a Text editor and a PDF viewer
Though the Aakash Tablet may not have a high
speed processor or all the features required by the
technical savvy, it is still a good device and an upgrade
is expected soon.
Finally…
Computers and internet have taken over the world.
The low priced Aakash Tablet will help close the great
divide between those who can afford a computer and
those who cannot. With its low price the affordability
factor is taken care of and the functionality of the device
is at par with the other computers.
G G G
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TA R A NG Volume 7 / Issue 2 - April 2012
BOOK REVIEW
Shweta Hariharan (TE E&TC B)
“W hat is the smallest constituent of a
substance” This might have been one of the most
popular question’s the science teacher asked you at
school and without the slightest doubt you would have
blurted out “An atom! “ The answer seemed so simple,
didn’t it Well, in reality, the answer isn’t as simple as
it seems. This is what theoretical physicist Harald
Fritzsch tries to convey through his book “You Are
Wrong , Mr Einstein!” in which he has described the
history of quantum physics in one of the easiest
manners.
The book begins with a foreword by S L Glashow
( who himself is a Nobel laureate) telling how quantum
physics plays a very important role in our day to day
life, from the desk we sit on, to the mobile phones that
we just can’t do without nowadays. Dr. Fritzsch has
used a very innovative technique of creating an
imaginary conversation between great physicists
which includes Newton, Einstein, Heisenberg,
Feynman and Haller through which he tries to describe
the concepts of quantum physics. The conversation
starts with the basic definition of an atom and slowly
sieves its way through to more complicated terrains
like quarks, gluons, bosons etc. These terminologies
may sound like Greek and Latin to most non-physicists
but thanks to Fritzsch who again scores by his
effortless simplicity, readers will not find it very difficult
to understand. The author considerably brushes on
the social life of these remarkable men, their personal
rivalries but keeps them to a minimum and sticks to
his field. It is pretty amusing when each of the physicists
admit to one point that non of them understand quantum
physics!
One of the hindrances in this book is its monotony.
It gets repetitive at numerous accounts. Also, the book
loses its interactive essence and seems like a text book
after a point. This book is a complete no-no for a person
who has no physics/science background as the author
has assumed the reader knows the basic concepts of
physics while writing the book.
However, the book promises to enlighten you
with this amazing science and in case you read the
whole book you will surely not be disappointed. This
book is a complete treat for all physics enthusiasts.
On a lighter edge, in case you were to bump into
Sheldon Cooper(from ‘The Big Bang Theory’) and
want to strike a tete- a-tete with him, make sure
you don’t miss this one!
G G G
What Thomas Edison’s Mother might have said to her son
“Of course I’m proud that you invented the electric light bulb.
Now turn it off and go to bed !”
11

TA R A NG Volume 7 / Issue 2 - April 2012
Departmental Activities
The various programs conducted by the department are as follows :
1. Guest lecture on ‘Finance for Non - finance Professionals’ by Qureish Shipchandler (Vice President – Industrial
Audit, Cummins India Ltd) was organized on 25 th Dec 2011.
2. Ericsson Excel Webinar Program for B.E. students by Ericsson India Ltd was conducted in Dec 2011 – Jan
2012.
3. Guest Lecture by Dr. Varadraj Bapat ( IIT Bombay), on ‘Nation is Career’ was arranged on 13 th Jan 2012 to
inculcate ethical values in the students.
4. KPIT Cummins announced a National level Project Competition – Innoways to nurture the spirit of Innovation
and Excellence. KPIT Cummins selected 10 Engineering Colleges across India. Cummins College of
Engineering for Women, Pune was one of them.
The Contest which was open to participation for 3 rd year B.E. /B.Tech students from Electronics, Electronics
and Tele-communication, Computer Science and Instrumentation branches was announced in September
2011. The students were free to choose a topic from a list of project areas given to them by KPIT Cummins.
A team of experts from KPIT Cummins had visited the college on 17 th Feb 2012 for evaluation and the results
were declared soon after the brilliant demonstration by the students. The head of the E&TC Department
Prof. Kulkarni welcomed the guests. The projects ‘Presentation Assist using Mobile’ by Chandni Sahay and
‘Parking Assist using Mobile’ by Nupur Bhonge, Sukhada Sathaye and Ishwari Unhale shared the award of
Trophy. After the results were announced, Principal Dr. Madhuri Khambete thanked KPIT Cummins for giving
the students the exposure to latest real world problems and the opportunity to apply their theoretical knowledge
to practical applications. The programme was coordinated by Prof. A. S. Patil.
The best project groups were sent for the Tech Exhibition – Tecxpedition 2012, the theme of which was
‘Technology 2025’ at KPIT Cummins in the month of March 2012. The first Prize of the competition was won
by Chandni Sahay of T.E. E&TC.
5. A project guidance workshop was conducted by the department for the third year E&TC students under the
aegis of IEEE student chapter on 24 th Jan 2012.
6. A special lecture on ‘Programmable Logic Controller’ was arranged for final year E&TC students in March
2012. Prof. Vaishali Upadhye (Instumentation Dept, CCOEW) was the invited speaker. Prof. Vidya Sisale
coordinated this activity.
7. A visit to ‘Maharshi Karve Telephone Exchange, BSNL, Karve Road, Pune’ was arranged for final year E &
TC students on 28 th and 29 th March 2012. Prof. Shubhangi Choudhary and Prof. Pratibha Vellanki coordinated
this activity.
8. Our college conducted the ‘ePGCON 2012’ conference pertaining to paper presentations on theses of M.E.
Electonics and E &TC students of all the engineering colleges under University of Pune running M.E.
Electronics and E & TC programs. The conference was held on 23 rd -24 th April 2012.
9. A Santoor recital performed by Pt.Dhananjay Daithankar accompanied by Pt.Ramdaas Palsule was organized
by the Art Circle, Team. This event was co ordinated by Prof. J. A. Mokashi & Prof. Namrata Karandikar
10. Activities under NSS cell: The following activities were conducted under NSS cell. The activities are
coordinated by Prof. M.A. Dixit (NSS Program Officer), Prof. G.R. Padalkar, Mrs. A.R.Fukane of E &TC
Department and NSS coordinators of other departments.
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TA R A NG Volume 7 / Issue 2 - April 2012
Regular Activities :
1. Book donation for the School at village Kalyan on 14 th Sept.2011.
2. Engineer’s day celebration on 15 th sept.2011.
3. Visit to ‘APLA GHAR’ anath ashram and vruddhashram on 17 th Sept.2011.
4. Lecture on Traffic Rules on safe driving by Mr. Ajit Joshi from Rotary Club, Pune (West) & PUC checking of
vehicles at concessional rate on 29 th sept.2011.
5. Visit to ‘Aadivasi Ashram Shala, Kamshet’ on 03 rd Oct.2011.
6. A lecture session was conducted by Mrs. Abhyankar on child adopation on 04 th Oct.2011.
7. Blood Donation Camp: It was held twice in the year : on 10 th Oct. 2011 and 21 st & 22 nd Feb.2012
8. NSS volunteers worked as readers & writers for blind students for their Midsemester examination in
Mahilashram High School of MKSSS
9. NSS volunteers taught English grammer to XI std art students from Samstha.
10. Students attended University level seminar on Health Awareness at Siddhivinayak College of Arts &
Commerce, Pune on 01 st Feb. 2012.
11. Donation of science lab equipment to school at village Kalyan on 8 th Feb.2012.
12. Sessions were conducted for the subjects Science and English for the students of std VIII and X at Kalyan
village on 10 th Feb.2012. Special Guidance was given to the Std. X students by the staff of Mahilashram High
School.
Special Camp :
Our college has adopted village Kalyan, Tal. Haweli. It is just 35Kms away from Pune. We have conducted
the special residential camp of 7 days at Kalyan from 10 th Jan.2012 to 16 th Jan.2012. Twenty one students
attended the camp. Following activities were conducted for seven days such as-
1. Inauguration of NSS camp on 10 th Jan.2012 at the hands of Prof.N.D.Patil, LMC member of MKSSS, Exmember
of Maharastra State Secondary & Higher Secondary Education Board, Pune, Ex-vice President of
Akhil Bhartiya Vidyarthi Parishad (Maharastra State).
2. Swachhata : Volunteers cleaned Grampanchayat office area and area near two temples on 11 th Jan.2012.
3. Medical Camp (Arogya Shibir) held on 11 th Jan.2012. Health checkup of children below 12 years was done
by Dr. Navrange & Dr.Karandikar.
4. Tree Plantation: Total of 40 trees like Mango and Ashoka were planted near Grampanchayat office, School
campus, Pashu Vaidyakiya Rugnalaya on 12 th Jan.2011.
5. Educational programs were conducted for school students of 8 th , 9 th , 10 th Standards. Such as career Guidance,
study Techniques etc.
6. Visit to Brick Kiln (Vit Bhatti) on 13 th Jan.2012.
7. Trekking to Sinhagad fort.
8. Visit to poultry farm on 14 th Jan.2012.
9. Students worked in the farm and picked plants of Black Peas (Kala Vatana) also ploughed in the farm on 15 th
Jan.2012.
10. Visit to Bio-Gas Production Plant on 15 th Jan.2012.
11. Function of Haldi Kumkum was organized for women from Kalyan on occasion of Makarsankranti on 15 th Jan.2012.
12. Visit to milk dairy on 16 th Jan.2012.
13. Mr. Mote (NSS Area Coordinator) conducted session for NSS volunteers. He also conducted mind games. He
gave on the spot topics for street plays and they were performed before the valedictory function on16 6th Jan.2012.
G G G
13

TA R A NG Volume 7 / Issue 2 - April 2012
Staff Activities
Heartiest congratulations to:
Prof. Pratibha Vellanki and Mrs. Anuradha Fukane for successfully completing M.E. Signal Processing
course.
Prof. P.V.S. Shastry, Prof. A.S. Patil, Prof. N.G. Palan, Prof. B. V. Pathak, Prof. M.S. Borse, Prof. S. R.
Choudhary, Prof. M.A. Dixit, Prof. A.R. Khedkar, Prof. S. L. Sahare and Prof. S.A. Paranjape for Ph.D.
registrations.
Conferences / Workshops Attended:
S.N. Name of Staff Seminar / Conference /Workshop / Symposia/STTP/Training Program/Invited lecturer
1 Prof. S. V. Kulkarni Workshop Chaired a session on ‘Optical Fiber 7 th Jan 2012
Communication’ at
Dyanganga College
of Engineering & Research Pune
2 Prof. P. V. S. Shastry International International conference on ‘Computational 15 th -18 th Dec 2011
conference Intelligence and Computer Research’
for IEEE at CAPE Institute Of technology
Levengipuram, Kanayakumari
3 Prof. Mrs. B. V. Pathak International CCSIT-12 International conference, 2 nd -4 th Jan 2012
conference Bangalore
International International Conference Of Advanced
conference Computing For Electronics And Electrical
Engineering held at VIT Hotel Mumbai 25 th -27 th March12
Workshop Two day Workshop on Speech Signalling
processing at RSCOE, Pune
24 th and 25 th Feb.12
4 Prof. Mrs. S. R. National World Congress on
Chaudhary conference Information and Technologies 11 th -14 th Dec. 2011.
(WICT 2011) in Mumbai
International International Conference & 24 th & 25 th Feb 2012
Conference Workshop on Emerging
Trends in Technology 2012 in
Mumbai. (Selected)
Workshop Workshop on Syllabus 9 th Jan 2012
Discussion of BE (E&TC) on
Telecommunication Switching
Systems at Nutan Maharashtra
Institute of Engg. & Technology,
Talegaon Pune,
5 Prof. M. K. Pote. Workshop Workshop on ‘instructional 7th Jan2012.
methodologies of Optical
Fiber Communication,
Dnyanganga College of engg.
And research, Pune,
14

TA R A NG Volume 7 / Issue 2 - April 2012
S.N. Name of Staff Seminar / Conference /Workshop / Symposia/STTP/Training Program/Invited lecturer
6 Dr. Mrs. P. P. National National Conference on 7 th – 9 th Dec., 2011.
Shingare Conference Machine Vision & Image
Processing MVIP, 2011
7 Prof Ms Padma International International Conference Of 25 th -27 th March 2012
Hirave conference Advanced Computing For
Electronics And Electrical
Engineering held at VIT Hotel, Pune
Papers Presented
Sr. Name of Title of The Paper Name of the National/ International Date
No. Staff Conference
1. Prof. P. V. S. “High Throughput Sub- International conference on 15 th -18 th Dec 2011
Shastry Pipelined Implementation Computational Intelligence and
Of AES Algorithm”
Computer Research for IEEE at
CAPE Institute Of technology
Levengipuram, Kanayakumari
2. Prof. Mrs. A. S. “ Study of the EEG International Conf of Signal 25 th -27 th May 2012.
Patil signals of Human Brain Processing & Pattern Recognition
for the analysis of
at Delhi
emotions’,
3. Prof.Mrs.A.S. DWT Based Video in International conference for Real 24 th and 25 th July 2011
Patil Video Digital Time Video
Watermarking for Real
Time Video
4. Prof. Mrs. “Comparison between CCSIT-12International conference,
B. V. Pathak different feature Bangalore
extraction techniques to
identify the Emotion To be published in Springer 2 nd -4 th Jan 2012
‘Anger’ in speech “ LNISCST 85, pp 647-653, 2012.
5. Prof. Mrs. B. V. FxLms Algorithm for International Conference Of 25 th -27 th March 2012
Pathak Feedforward ANC Advanced Computing For
System
Electronics And Electrical
Engineering held at VIT Hotel
Mumbai
6. Prof. Mrs. S. R. “An Enhanced Intrusion World Congress on Information 11 th -14 th Dec. 2011.
Chaudhary detection System using and Technologies (WICT 2011) in
Adaptive Acknowledgment Mumbai
based Algorithm” .
15

TA R A NG Volume 7 / Issue 2 - April 2012
Sr. Name of Title of The Paper Name of the National/ International Date
No. Staff Conference
7. Prof. Mrs. S. R. “Performance Analysis International Conference & 24 th & 25 th Feb 2012
Chaudhary of an OFDM system Workshop on Emerging Trends
using Channel coding in Technology 2012 in Mumbai.
Techniques”
8. Prof. Ms Padma FxLms Algorithm for International Conference Of 25 th -27 th March 2012
Hirave Feedforward ANC Advanced Computing For
System
Electronics And Electrical
Engineering held at VIT
Hotel Mumbai
9. Prof. Ms.Vellanki “Enhanced Stereo International May 2011
Pratibha Matching Technique Journal(IJCSI),Volume8,
Using Image Gradient Issue 3
For Improved Search
Time”
10. Prof.Ms.Shukla “Low power RF Anteena International Journal of April 2011.
Shambhavi Design for BAN” Computing volume 1,
issue 2
11. Prof.Ms.Shukla “Methodology for Low International Journal of Computing April 2011.
Shambhavi Power RF Antenna volume 1, issue 2
design for Body Area
Network “,
Faculty as Resource Person in Workshop / Seminars / Conferences :
Sr. Name of Brief Description Date Organized by
No.
Staff
1 Prof. S. V. Guest lecture: H.F. and 14 th November 2011 H.Q. ,Police
Kulkarni V.H.F. communications Wireless,
Maharashtra state,
Pashan Road, Pune.
2 Prof.Mrs.A.S Judge for a paper presentation 2 nd March 2012. MMCOE, Pune
Patil
competition for a National
level technical event-
Dextirity 2012- organized by
MMCOE
3 Prof. Mrs. S. N. Expert Lecture :”Direct 30 th September 2011. MMCOE, Pune
Ohatkar
Sequence Spread Spectrum”
4 Prof. Mrs. S. N. Invited for “FE ONLINE 1 st ,9 th &13 th University of Pune
Ohatkar Examination Question paper June 2011
Update Meeting
5 Mrs.Anuradha Appointed as International 11th, 14th Mumbai, India
R.Fukane Programme Committee December 2011
member of ‘World Congress
on Information and
Communication Technologies
(WICT 2011)’ organized by
MIR labs U.S.
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TA R A NG Volume 7 / Issue 2 - April 2012
Sr. Name of Brief Description Date Organized by
No.
Staff
6 Mrs.Anuradha Worked as International December 20-22 , 2011 Indian Institute of
R.Fukane Program Committee Technology (IIT)
member of ‘IEEE
Roorkee, India,
International Conference on
organized by IEEE
Soft Computing for Problem
Computer society
Solving (SoCProS 2011)
and Machine
Intelligence
Research labs U.S.
at Roorkee,
7 Mrs.Anuradha Worked as International 07-09 Oct 2011. organized by IEEE
R.Fukane Program Committee member Computer society
of IEEE International Conference
Intelligence
and Machine on Computational
Research labsU.S.
Intelligence and
at Gwalior, India on
Communication Networks
(CICN-2011),
8. Mrs.Anuradha Worked as International 3-5 June 2011 organized by IEEE
R.Fukane Program Committee member Computer society
of ‘IEEE International
and Machine
Conference on
Intelligence
Communication Systems and
Research labs U.S.
Network Technologies
at Jammu, India
(CSNT-2011)’
G G G
17

TA R A NG Volume 7 / Issue 2 - April 2012
Students Achievement
1. Ms. Suvarna Athavale is selected as the Best Outgoing Student for this academic year.
2. Ms. Pooja Keskar has won the ‘Murthy Prize for Excellence - for Best Performance in Sports.’
3. Ms. Amruta Narayanpure and Ms. Nimita Shinde has passed the GATE examination with the score 98.98
and 98.85 respectively.
4. Ms. Bilwa jadhav is selected for MS program at Purdue University, USA with full scholarship and research
assistantship.
5. The following students participated in National ROBOCON competition held at Balewadi stadium on 2 nd
march 2012:- Roma Panjabi, Nishi Shah, Revati Nalawade, Pooja Mehta, Chaitrali Joshi, Shivani Phadke,
Neha Belapurkar, Priyanka Kulkarni (Team Leader) and Meera Kulkarni.
6. The following students have been placed in companies shown against each:-
KPIT Cummins
Chaitrali Eksambekar
V Vandana
Madhura patil
Upajnya Shetty
Sanya Joseph
Shweta Vij
Rucha kUlkarni
ZS Associates
Ankita Praharaj
John Deere
Prajakta Mane
Pooja Keskar
SuvarnaAthawale
Neha Brahmankar
Anvita Upadhyay
Shruti Sharma
Texas Instruments
Meghana Manavazi
Cummins India Ltd
Bhagyashree Vispute
Infosys
Megha Dhole
Namrata Somani
Bilwa Jadhav
Varsha Shivkumar
Nikita Singh
Trupti kadam
Shruti Wangikar
Arti Dayma
Prajakta Gokhale
Ankita Lalmunde
Sneha Bijlani
Gauri Thange
Shruti Wadhokar
Priyanka Kulkarni
Sharvari Malunjkar
Gauri Kelkar
Meha Sinha
Piyusha Vasekar
Gayatri Chiplunkar
Astha Ganjoo
Capgemeni
Kulkarni Prajakta
18

TA R A NG Volume 7 / Issue 2 - April 2012
Ruchita Badave
Geometric
Nivedita Ingle
Madhura Pichare
Chinmayee Pai
Eaton
Mrunmayi Sardesai
Honeywell
Kamble Jyoti
WIPRO
Deloitte
Tata Motors
Aditi Sinnarkar
Khusboo Khatri
Vaibhavi Kulkarni
Shambhavi Tambulwadkar
Shruti Naik
Avanti Vyas
Ruchita Katiyar
Meenu Sasidharan
Priyanka Sawhney
IBM
Wipro VLSI
AGC Essar
Ericssion
Syntel
Bosch
Sneha Rathi
N Monisha
Talandage Kavita
Shukla Kriti
Aneesha Dumbre
Shinde Nimita
Mansa Ramdas
Sweta Ghadge
Name Class Competion Position won and place
Anita Sharma SE Paper presentation 2 nd in Melange, VIT; Paper selected among top 12 in
‘Cognizance’ IIT ROORKEE
Project Competition
Selected for mentorship & scholarship by EATON
Pallavi Bade SE Kho-Kho 2 nd in COEP-Zest, CCOEW-Pentacle, & VIT-Melange
DeepikaHange,
Chavan Akshata,
ShilpaKarad
Meera Kulkarni SE Circuit designing 2 nd in VIIT- Perception
Sania S. Mane, SE Football 1 st at COEP-Zest, CCOEW-Pentacle, & AIT-Pace
Shalaka Kulkarni
Geetika Dadheech SE Robo-race 3 rd at IIT-Khagarpur- Kshitij
Manasi Bhide SE 8 th National ice 2 bronze medals in 500mtrs and 1000mtrs at Shimla
skating championship
49 th Roller Skating 2 bronze medals in 300mtrs timetrial and road,
Federation of India and 1 silver medal in 500mtrs at Bengaluru
Nationals
Amrita Honap SE Paper Presentation 2 nd at Modern COE- M-Pulse
Shweta
Tembhurnikar
Saniya Khan SE Aeromodelling 2 nd at VIIT-Perception
Apurva Gaikwad
Megha Guralvar
Manansa Patil SE Hair decoration 2 nd at CCOEW
Palvi Shrigiri
(pre-gandhar)
19

TA R A NG Volume 7 / Issue 2 - April 2012
Name Class Competion Position won and place
Dhanashri Patil SE Snap Hunt 1 st at Triz-CCOEW
Shalaka Kulkarni SE Long jump, Football, 2 nd at CCOEW
Cricket
Throw ball
1 st at CCOEW
Sonam Shah, SE Paper Presentation 2 nd at VIIT- Perception
VaidehiHoshing
Neha Shaah SE Paper Presentation 2 nd at PCCOE
KalyaniUpadhye
Vrushali Naikwadi SE Nail Art 3 rd in Gandhar CCOEW
Sapna Sonkavde
Vrushali Naikwadi SE Cricket, Throwball 2 nd and 1 st respectively at Gandhar-CCOEW
Handball
2 nd at intercollegiate event
Mayuri Deshpande, SE VictrizionRobo Race 1 st prize in Best Design at Innovation 2K12, CCOEW
Amrita Honap,
Priyanka Babar,
Harshada Kelkar
Kanchan Mate, T.E. INNOWAYS 2012 Qualified
Ruta Kokil
Shambhavi
Balsubramanian,
Prachi Pawar,
Ankita Makhicha,
Purva Kulkarni,
Namrata,
Shravya Peddireddy
Shweta Hariharan T.E. Head publicity of Innovation 2k12
Neha Kulkarni T.E. 100m relay 3 rd prize
Purva Kulkarni T.E. Solo singing 2 nd prize Gandhar
Chinmayee Pai BE Completed yoga teacher training from authentic yoga
school. Now a certified yoga teacher
Bilwa Jadhav BE Selected for MS at Purdue University with full
scholarship and research assistantship
Pooja Keskar BE Football Won Golden Boot award at Zest and Pentacle and
Best Player award at Pace
Khushboo Khatri BE Table Tennis Part of winning team at : DaminiPart of runners
up team at :Zest, COEP Pentacle, CCOEWUnify,
Symbiosis M-sports, Modern COE Melange, VIT
20