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20060001245 Institute of Space Medico-Engineering, Beijing, China Progress in Research of Vascular Contractility under Weightlessness or Simulated Weightlessness Li, Zhi-li; Jiang, Shi-zhong; Space Medicine & Medical Engineering; October 2005, pp. 387-390; In English; See also 20060001234; Copyright; Avail.: Other Sources Weightlessness or simulated weightlessness-induced orthostatic intolerance appears to be due, in part, to the change of vascular contractility. The functions of vessels are close to blood pressure, vessels structure and blood flow. The vessels have respective structural and functional characteristics due to their different anatomic regions. The cephalic fluid shift and elimination of the head-to-foot hydrostatic pressure gradient in weightlessness or simulated weightlessness may induce adaptations of the vessels, which are different in property and degree. This review summarizes recent researches about these adaptations to weightlessness or simulated weightlessness. Author Cardiovascular System; Blood Pressure; Weightlessness; Pressure Vessels; Hydrostatic Pressure; Blood Flow; Contraction 20060002051 Civil Aerospace Medical Inst., Oklahoma City, OK, USA, Ohio State Univ., Columbus, OH, USA Medical Surveillance Programs for Aircraft Maintenance Personnel Performing Nondestructive Inspection and Testing Nakagawara, V. B.; Montgomery, R. W.; Good, G. W.; November 2005; 14 pp.; In English; Original contains black and white illustrations Report No.(s): DOT/FAA/AM-05/21; No Copyright; Avail.: CASI: A03, Hardcopy Visual inspection and nondestructive inspection and testing (NDI/NDT) are performed routinely to ensure that aircraft are maintained in safe operating condition. Inspectors must make critical judgments about the condition of aircraft and aircraft components using their eyes, basic visual aids (magnifiers, mirrors, and flashlights), and complicated NDI/NDT techniques to detect anomalies. Failure to detect observable defects has been implicated in several aviation accidents. This study examines the medical surveillance programs employed by aircraft maintenance facilities in the USA, indicating specific vision standards and tests used for inspection personnel. We interviewed medical surveillance program personnel from nine major aircraft maintenance facilities and repair stations by phone or in person. The current vision standards for inspectors at each of the facilities surveyed were extracted from internal facility documents. Additionally, we reviewed the vision screening tests used for medical surveillance of inspection personnel. There were differences in the vision standards for near vision (Snellen 20/20 and 20/25, Jaeger #1 and #2, Ortho Rater #8) distant vision (20/25, 20/30, none), color vision (distinguish and differentiate contrast among colors, colors in the methods, normal color vision), and test intervals (annual, 2-year) at the facilities surveyed. Vision screening tests used in the medical surveillance programs at these facilities were equally diverse, including choice of vision screening tests. Medical surveillance programs for the aircraft maintenance facilities we surveyed different considerably for both vision standards and screening tests used to evaluate performance of inspectors. The use of uniform vision standards and test methods would provide quality control and facilitate a more accurate evaluation of the visual capabilities for inspection personnel. Author (revised) Aircraft Maintenance; Snellen Tests; Nondestructive Tests; Surveillance 20060002347 Royal Netherlands Meteorological Inst., Netherlands Results of and Adjustments to a Dynamic Vision Test Bos, J. E.; Hogervorst, M. A.; July 2005; 26 pp.; In English; Original contains color illustrations Report No.(s): TNO-DV3 2005 A058; TD2005-058; Copyright; Avail.: Other Sources Previous studies showed that assessment of the dynamic visual acuity is of value in testing pilots, and how such a test could be performed. It was, however, not known how this test would work in practice. When applied, it is essential that for a normal population a reduction in acuity depending on the chosen stimuli can be realised, such that defects can be quantified by the (reduced) amount of motion needed to cause a certain reduction in acuity. We applied the flash-test to four subjects using the TNO 3D rotation chair with a CRT screen mounted on it in an extensive series of experiments. Results With moving visual stimuli, the chosen test conditions sufficed to show a reduction in acuity. With self motion, however, we could not show this. It is sufficient to measure the dynamic acuity by the flash test with a direct view on the CRT. It is sufficient too to apply visual stimuli moving not faster than 32"/s. Passive self motion seems insufficient to measure the dynamic acuity. An active auto rotation test seems the best alternative. Low frequency passive self rotation is needed to study fixation suppression effects. The effect of ambient light and background characteristics seems negligible in all conditions. The previously proposed test battery can therefore be reduced considerably. With a number of amendments, this test deserves to be applied to a group 114
of aviators (or comparable subjects) as well as to patients with known visual and vestibular deficits to determine the sensitivity and specificity of the test. Author (revised) Visual Perception; Visual Acuity; Dynamic Tests 53 BEHAVIORAL SCIENCES Includes psychological factors; individual and group behavior; crew training and evaluation; and psychiatric research. 20060001239 Peking Univ., China, Chinese Academy of Sciences, Beijing, China Hemispheric Asymmetry for Encoding Unrelated Word Pairs? A Functional Near-Infrared Spectroscopy Study Jiong-jiong, Yang; Shao-qun, Zeng; Qing-ming, Luo; Lin-chu, Guan; Hui, Gong; Wemara, Lichty; Britton, Chance; Space Medicine & Medical Engineering; October 2005, pp. 318-323; In English; See also 20060001234; Copyright; Avail.: Other Sources To explore the role of the prefrontal cortex in semantic encoding of unrelated word pairs by using functional near-infrared spectroscopy (fNlRS). Forty-eight subjects were presented unrelated pairs of Chinese words under both the nonsemantic and semantic encoding conditions. Under the nonsemantic condition, subjects judged whether the two words had similar orthographic structures; under the semantic condition, they generated a sentence involving the presented word pairs. The changes of regional blood volume associated with the cognitive tasks were measured by using fNlRS equipment which was a continuous optical imager. The regions that corresponded to the prefrontal regions showed greater activation under semantic than nonsemantic condition in both left and right hemispheres, although the extent of the activation was larger in the left than right prefrontal regions. This result was consistent with other neuro-imaging studies on unrelated word pairs processing, but did not conform to the strict interpretations of the hemispheric encoding/retrieval asymmetry model (HERA). This study suggests that material specificity is one of the important factors to influence hemispheric asymmetry in memory encoding. When associations between items are required, right prefrontal regions participate in the encoding processing as well. It also indicates that fNlRS imaging is a viable method of investigating higher level cognitive processing such as memory. Author Asymmetry; Coding; Spectroscopy; Words (Language) 20060002118 Hughes Research Labs., Malibu, CA, USA Switched-Capacitor Building Blocks with Reduced Sensitivity to Finite Amplifier Gain, Bandwidth and Offset Voltage Larson, Lawrence E.; Temes, Gabor C.; 1987 IEEE International Symposium on Circuits and Systems, Volume 2; 1987, pp. 334-338; In English; See also 20060002103 Contract(s)/Grant(s): D860311; Copyright; Avail.: Other Sources New switched-capacitor gain stages and integrators are presented that exhibit reduced sensitivity to operational amplifier gain, bandwidth, and offset voltage. The switched-capacitor building blocks should find wide application in switched-capacitor filters, A/D, D/A and other analog arithmetic building blocks, especially in high-speed applications. Author Switching; Bandwidth; Capacitors 54 MAN/SYSTEM TECHNOLOGY AND LIFE SUPPORT Includes human factors engineering, bionics, man-machine systems, life support, space suits and protective clothing. For related information see also 16 Space Transportation and Safety and 52 Aerospace Medicine. 20060001243 Institute of Space Medico-Engineering, Beijing, China Comparison Study of Impact Response Characteristics between SZM510 Dummy and Hyrid III Dummy Hong-lei, Ma; Bing-kun, Liu; Shi-zhong, Jiang; Tao, Wang; Hong-hui, Yang; Jun-cheng, Jiang; Space Medicine & Medical Engineering; October 2005, pp. 344-346; In English; See also 20060001234; Copyright; Avail.: Other Sources The objective is to quantify the response of human-chair system during landing impacts, and to testify the detecting position for system impact tests. On an impact tower, the impact tests were carried out based an rivet or buffer underprop supporting system. The response of dummies system under the two supporting systems was similar. The response of Hyrid 115
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Since its founding, NASA has been d
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NASA STI Availability Information N
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Life Sciences 51 Life Sciences (Gen
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Microstructure Fabrication and Perf
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RNP SAAAR procedures have been prop
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concept was originally developed to
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appropriate information in the righ
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preceding aircraft. The proposed DE
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Workshop; November 2005; 31 pp.; In
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20060002288 Johns Hopkins Univ., La
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Workshop; November 2005, pp. 1-19;
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aircraft would then vary its broadc
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20060001772 Northrop Grumman Corp.,
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seedling effort, Metron has been aw
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aircraft ‘streaming’ that impli
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implantation of analog-to-digital c
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12 percent; Denver, Kennedy and Orl
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maneuver is along or opposite the v
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18 SPACECRAFT DESIGN, TESTING AND P
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High-Level Waste Workshop held on J
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detectors, but 50 seconds slower th
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computed to shed light on the feasi
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have to be satisfied. Usually, an i
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desired speech with better intellig
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noise is not required. Simulation e
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we present a series of lessons lear
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eceived instantaneous power level h
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integration of these highly integra
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The scheme is based on the harmonic
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A family of Quantized State (QS) ad
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atios. It is also used in a speech
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In AM radio it is of interest to in
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We define a piecewise AR model for
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the far domain eliminates scan time
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Page 128 and 129: 20060002350 BERG2 Micro-Computer Es
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Page 152 and 153: 20060001877 New York Univ., New Yor
Page 154 and 155: domain. dRBAC utilizes PKI to ident
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The model parameters necessary for
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estimators, and investigate the eff
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was only able to identify DMMP down
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takes I+26M, I+31M for an addition
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65 STATISTICS AND PROBABILITY Inclu
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A new approach to making voiced/unv
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near-optimal strategy with DBN serv
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non-linear system design. Finally,
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The aim of this three year project
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extraction, and object recognition.
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20060001806 North Carolina State Un
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ate of the Booster, and provide a l
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The magnetic harmonic errors of the
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20060002069 Fermi National Accelera
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micrographs as triangular and trape
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plays a significant role in the dev
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20060002468 Lawrence Livermore Nati
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20060002492 Lawrence Livermore Nati
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parameters and propose some importa
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ATAL introduced a technique for dec
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The problem is addressed of evaluat
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20060001730 Naval Underwater System
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and tip-tilt natural guide star (NG
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oscillation, bursting, chirping and
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specifications automatically. Some
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discrimination information (or the
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matching algorithm is proposed for
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20060001768 Naval Postgraduate Scho
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20060001826 Massachusetts Univ., Am
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allows the user to specify a contex
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information from these resources, u
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such as ADSL and FTTH, we are now a
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Presented is the National Optical A
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20060000076 Gemini Observatory, Hil
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Telescope (HST) at optical waveleng
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Misadjustment Expressions for Infin
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A-4 Complexity Reduced Lattice Filt
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ASYMMETRY Anthrax Biosensor, Protec
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Regulation of hTERT Expression and
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CLIMATE C-Haendelser i Vinterklimat
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Neutronics Assessments for a RIA Fr
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CRYSTAL SURFACES High-Throughput Ap
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DIELECTRICS Theoretical and Experim
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Analysis of Depletion-Region Collec
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Scenario Customization for Informat
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GALLIUM ARSENIDES InGaAs/GaAs QD Su
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HUMAN RESOURCES The Management of P
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INFRARED SPECTRA Chemical Vapor Ide
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Adaptive Transversal Filters with D
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MATCHED FILTERS Simplified Class 1
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MILITARY TECHNOLOGY The USA Air For
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NONLINEAR FILTERS A Novel Approach
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Object Classification and Registrat
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Predicting Ductile Crack Growth in
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RECURSIVE FUNCTIONS Recursive Array
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Texture Segmentation Using a Class
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SITUATIONAL AWARENESS Aspects of Sh
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STABILITY Damping Transverse Instab
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Single Target Spin Asymmetries and
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On Generalized Feussner’s Princip
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WEAR Wear Prediction of Strip Seals
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Anderson, Robert H. The Vulnerabili
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Neutronics Assessments for a RIA Fr
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Chien, Ting-Li Navigation of a Mobi
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The Modeling and Segmentation of Sp
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Fomin, Pavel Test and Evaluation of
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Hann, P. R. Technical Equivalency D
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Irons, F. H. A Phase-Plane Approach
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Kawarada, Hiroshi A Hierarchical Re
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Lai, Feipei JADE: A Hierarchical Sw
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Lopez-Perez, Javier VHF Channel Occ
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Menard, J. Scaling of Kinetic Insta
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Ney, Hermann Dynamic Programming Sp
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Using Rhythms of Relationships to U
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Resch, C. Communications Technology
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Sedra, A. S. SlCOMP: A Silicon Comp
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Steffler, E. D. Predicting Ductile
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Torkelson, Mats A VLSI Sigma-Delta
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Wheeler, P. D. Practical Adaptive N
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Zong-ye, Wang Application of Multis
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