NASA Scientific and Technical Aerospace Reports

Simulation (NPSS) software package. The SOFC and reformer models solve systems of equations governing steady-state
performance using common theoretical and semi-empirical terms. An example hybrid configuration is presented that
demonstrates the new capability as well as the interaction with pre-existing gas turbine and heat exchanger models. Finally,
a comparison of calculated SOFC performance with experimental data is presented to demonstrate model validity. Keywords:
Solid Oxide Fuel Cell, Reformer, System Model, Aerospace, Hybrid System, NPSS
Author
Solid Oxide Fuel Cells; Systems Engineering; Models; Hybrid Structures; Gas Turbines; Applications Programs (Computers);
Aircraft Fuels
20040073530 Survivability/Vulnerability Information Analysis Center, Wright-Patterson AFB, OH
JLF Standard Characterization of Foreign Ammunition (SCOFA)
Yee, Alfred; Kennedy, Kelly; Sep. 18, 2002; 4 pp.; In English
Contract(s)/Grant(s): SPO700-96-D-4000; Proj-TAT-01-10
Report No.(s): AD-A412985; No Copyright; Avail: CASI; A01, Hardcopy
SCOFA developed as a result of the information needs of organizations involved in using ammunition characterization
data as critical input for planning and preparing JLF/LFT&E testing as well as for vulnerability/lethality modeling in
support of LFT&E and design. SCOFA has evolved to include documentation on blue, gray, and red projectile
characterization data in a format acceptable for use in vulnerability/lethality analysis codes and characterization data resulting
from target testing to better understand behavior for subsequent asset testing.
DTIC
Ammunition; Data Processing
20040073541 Forschungsinstitut fuer Hochfrequenzphysik, Werthhoven
Design and Evaluation of a Multi-Robot Control Interface
Trouvain, B.; Wolf, H. L.; Oct. 2003; 13 pp.; In English; Original contains color illustrations
Report No.(s): AD-A422306; No Copyright; Avail: CASI; A03, Hardcopy
Designing a human-machine interface for a semi- autonomous, mobile, multi-robot system is a challenging task. The
requirements include operating in a real-time environment, facilitating asynchronous command execution, and supporting the
operator in dividing his or her monitoring and control resources among multiple robots. This paper presents the results of two
simulation-based, multi-robot experiments that were conducted to guide and support the development of a multi- robot control
interface. The experiments were designed around a simple mission-independent task of navigating robots towards goal points.
While working with an identical setup, the two experiments differed in the level of autonomy provided by the robots. In the
first experiment, the robots’ navigational capabilities were realized by a simple line-of-sight algorithm requiring the operator
to explicitly specify a path. In the second experiment, a more elaborate path generation algorithm was used, reducing the
operator’s activity to the selection of a goal point. In separate trials, operators had to manage 2, 4, and 8 robots in the two
different environments. Robot autonomy represents a requirement for a multi-robot system managed by a single operator.
Understanding the impact of varying levels of robot autonomy on operator performance is important for the interface design
process. (9 figures, 15 refs.)
DTIC
Human Performance; Human-Computer Interface; Man Machine Systems; Operators (Personnel); Robot Control; Robots
20040073550 Naval Postgraduate School, Monterey, CA
Speech Recognition Software; An Alternative to Reduce Ship Control Manning
Kuffel, Robert F.; Mar. 2004; 62 pp.; In English; Original contains color illustrations
Report No.(s): AD-A422331; No Copyright; Avail: CASI; A04, Hardcopy
This study identifies factors affecting the performance of commercial-off-the-shelf speech recognition software (SRS)
when used for ship control purposes. After a review of research in the feasibility and acceptability of SRS- based ship control,
the paper examines the effects of: * A restricted vocabulary versus a large vocabulary, * Low experience level conning officers
versus high experience level conning officers, * Male versus female voices, * Pre-test training on specific words versus no
pre-test training. Controlled experimentation finds that: * The experience level of a conning officer has no significant impact
on SRS performance. * Female participants experienced more SRS errors than did their male counterparts. However, in this
experiment, only a limited number of trials were available to assess a difference. * SRS with restricted vocabulary performs
no better than SRS with large vocabularies. * Using the software "correct as you go" feature may impact software
195