Issue 10 Volume 41 May 16, 2003

common questions and requirements. As a result, we hope that ongoing mission trade studies will consider common, standard,
and practical criteria for human interfaces.
Author
Human-Computer Interface; Human Factors Engineering; Human Performance
20030034674 Tokai Univ., Kanagawa, Japan
The Development of the Navigation System for Visually Impaired Persons
Hashimoto, Hideki; Magatani, Kazushige; Yanashima, Kenji; Oct 2001; 4 pp.; In English; Original contains color illustrations
Report No.(s): AD-A410485; No Copyright; Avail: CASI; A01, Hardcopy
The objective of this study is the development of auto-navigation system which supports activities of the visually impaired
without help of others. This system navigates the subject by using information about three sensors (acceleration sensor,
terestrial magnetism sensor and gyro sensor), DGPS(Differential Global Positioning System), maps and a traffic data base. In
our navigation system, after inputting the destination, position of the suer is estimated, the most suitable route to the
destination is calculated, and the user is guided along this route. In this report, we assess the developed method which
estimates the movement of the subject.
DTIC
Vision; Automatic Control; Disabilities; Navigation Aids
20030034720 Human Systems Information Analysis Center, Wright-Patterson AFB, OH, USA
Human Systems IAC Gateway, Volume 13, No. 2
Jan. 2002; 19 pp.; In English; Original contains color illustrations
Report No.(s): AD-A410689; No Copyright; Avail: CASI; A03, Hardcopy
This newsletter contains information on human factors challenges after September 11th, how the DoD and Human Factors
Engineering is changing, collaborations between human systems and information systems personnel, web-based customer
support, SAFE symposium. The newsletter also contains HSIAC products and a calendar of upcoming, human-systems events.
DTIC
Human Factors Engineering; Information Systems
20030034885 Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek, Rijswijk, Netherlands
Transition Region Between Adsorption and Filtration in NBC Filters
Kievit, O.; vanBokhoven, J. J. G. M.; October 2002; 29 pp.; In English
Contract(s)/Grant(s): B02/KL/479; TNO Proj. 014.12965
Report No.(s): PML-2002-A68; TD-2002-156; Copyright; Avail: Other Sources
This project focuses on C and B agents, smaller than conventional aerosols but larger than most gas molecules (e.g.
biotoxins and viruses). It studies how well current respiratory protection systems can deal with challenges in this transition
region (2-100 nm). For the aerosol filter, the diffusion coefficient is large enough to ensure that a particle will collide several
times with the fibers. In a worst case scenario (hard particles, hard filtering media and low specific adhesion energy) particle
bounce occurs below some 30 nm. This suggests that the aerosol filter may not be able to capture all particles in the transition
region efficiently. If we assume that botulinium toxin behaves similar to rubber, the theory predicts good adhesion and no
bounce. For the activated carbon filter, the characteristic time for diffusion can be much longer than the residence time. This
indicates that transport phenomena limit the effectiveness of the filter. The required protection level is thus not feasible by
using just an adsorptive filter. Furthermore, adsorption can only take place in meso- and macro- pores, which contribute little
to the capacity.
Author
Activated Carbon; Filtration; Adsorption; Toxins And Antitoxins; Protection; Viruses
20030037112 Michigan Univ., Ann Arbor, MI
Reaction Time to Clear-Lens Turn Signals Under Sun-Loaded Conditions
Sullivan, J. M.; Flannagan, M. J.; Sep. 2001; 22 pp.; In English
Report No.(s): PB2003-101390; UMTRI-2001-30; No Copyright; Avail: CASI; A03, Hardcopy
The use of clear-lens signal lamps on automobiles, motivated largely by styling considerations, has prompted interest in
whether there are any safety consequences associated with these lamps. In a previous report (UMTRI-98-2), it was found that
under bright, sunny conditions, luminance contrast between the off and on states of clear-lens turn signal lamps is smaller than
154