Issue 10 Volume 41 May 16, 2003

20030033022 Sandia National Labs., Albuquerque, NM
Distributed Sensing & Cooperative Control for Plume Tracing
Hurtado, John E.; Jan 2000; 4 pp.; In English
Contract(s)/Grant(s): N00014-99-F-0086
Report No.(s): AD-A410645; No Copyright; Avail: CASI; A01, Hardcopy
The objective of this proposed research was to apply distributed sensing and cooperative control algorithms developed
by Sandia researchers (under separate DOE contracts) to the problem of chemical plume localization. The distributed sensing
and cooperative control algorithms were tested against mathematically modeled simulated plumes and against real plume data.
DTIC
Plumes; Position (Location)
20030033043 Air Force Research Lab., Edwards AFB, CA, USA
Development of SMART Layer Technology for Health Monitoring of Structures
Kumar, Amrita; Beard, Shawn; June 05, 2001; 4 pp.; In English
Contract(s)/Grant(s): F04611-00-C-0026; AF Proj. 3005
Report No.(s): AD-A410538; AFRL/PRS-ED-VG-2001-128; No Copyright; Avail: CASI; A01, Hardcopy
No abstract available
DTIC
Systems Health Monitoring; Rocket Engines; Smart Structures; Technology Utilization
20030033051 ASRC Aerospace Corp., Greenbelt, MD, USA
Jell-Molds and Cookie-cutters: Shrinkwrap Isn’t Just for Leftovers Anymore
Randazzo, John; [2003]; 10 pp.; In English; Original contains black and white illustrations
Contract(s)/Grant(s): NAS10-03006
Report No.(s): KSC-2003-054; No Copyright; Avail: CASI; A02, Hardcopy
So what is Shrinkwrap all about? For those of you who may not know about it, Shrinkwrap is a type of data structure
that can manifest itself as a feature or model. It is cleverly covered up, almost hidden, and doesn’t get the press or widespread
use of a solid or surface. The shrinkwrap feature is located under the data sharing submenu of the feature menu. The
shrinkwrap feature, as described by PTC, is a collection of surfaces and datum features of a model that represents the exterior
of the model . The advantages and applications of the shrinkwrap feature are in the creation of minimal memory guzzling
representations of assemblies. These can be used to represent subassemblies in parent assemblies, and can handle control of
dependency issues, geometry represented, and additional references through the use of the shrinkwrap feature options. The
shrinkwrap model is an option available under the save as umbrella. Its function, as described by PTC, is to share data with
internal and external design groups and improve performance in large assembly design . Some of the benefits of the shrinkwrap
model include being able to represent complex assemblies with a single, lightweight part that protects design intent and
parametric data, and the ability to improve performance of large assembly modeling in the area of less load time. The
proper-scale models can be saved as IGES, STEP, and VRML (for fly-throughs).
Derived from text
Data Structures; Models; Computer Aided Design
20030033930 Pontifical Catholic Univ. of Puerto Rico, Ponce, Puerto Rico
Computerized System to Aid Deaf Children in Speech Learning
Riella, Rodrigo J.; Linarth, Andre G.; Lippman, Lourival, Jr.; Nohama, Percy; October 25, 2001; 5 pp.; In English; Original
contains color illustrations
Report No.(s): AD-A410403; No Copyright; Avail: CASI; A01, Hardcopy
This paper describes a voice analyzer, whose purpose is deaf children’s assistance in the process of speech learning. The
processing of the user’s speech signal is performed in real time in order to get an instantaneous feedback of the result of speech
training. The aim of this analyzer is not to find the distinction between spoken words, main objective of a speech recognizer
but to calculate a level of correctness in the toggle of a specific word. Voice signal analysis was developed through a digital
signal processor (DSP), applying spectral analysis processes, extraction of voice’s formants, adaptation of formants to the
standard levels in domain of time and frequency and statistical matching of the acquired speech signal and the standard one,
resulted from training. After calculating the correctness coefficient, the system goes off a visual feedback to the user in the
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