| Spatio-temporal Theory of Lasing Action in Optically-Pumped Rotationally Excited Molecular Gases |
11 Apr 2011 |
19 pages |
| Authors:
Song-Liang Chua; Christine A Caccamise; Dane J Phillips; John D Joannopoulos; Marin Soljacic; Henry O Everitt; Jorge Bravo-Abad; MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE
|
 | We investigate laser emission from optically-pumped rotationally excited molecular gases confined in a metallic cavity. To this end we have developed a theoretical framework able to accurately describe both in the spatial and temporal domains, the molecular collisional and diffusion processes characterizing the operation of this class of lasers. The effect on the main lasing features of the spatial variation of the electric field intensity and the ohmic losses associated ... |
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| Space & Cyberspace: The Overlap and Intersection of Two Frontiers |
Jan 2011 |
|
| Authors:
Jac W Shipp; ARMY SPACE AND MISSILE DEFENSE COMMAND/ARMY FORCES STRATEGIC COMMAND PETERSON AFB CO
|
 | The pace of change and level of effort has increased dramatically with respect to operations in Space and Cyberspace, with both of these domains increasingly being influenced by multiple actors with access to the information environment. What is needed in supporting this trend is up-to-date thinking and dialogue about how the Space and Cyberspace domains and their operations overlap and intersect, and the synergies and opportunities created by each. Our ... |
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| Categorization and Representation of Functional Decomposition by Experts |
01-Sep-2008 |
89 pages |
| Authors:
Paul W Melancon; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The objective of this thesis is to investigate different approaches to identifying system functions. The approaches that are described are standard functional decomposition process, Unified Modeling Language (UML), System Modeling Language (SySML), and Integration Definition for Function Modeling (IDEF0). A discussion is presented on advantages and limitations of describing and using functions by means of graphical formatting. Improving system functionality by effective decomposition is vital to robust system development. However, ... |
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| Bio-Inspired Sensing and Imaging of Polarization Information in Nature |
04 MAY 2008 |
61 pages |
| Authors:
Nader Engheta; Jr. Pugh Edward N.; Jan Van der Spiegel; PENNSYLVANIA UNIV PHILADELPHIA DEPT OF ELECTRICAL AND SYSTEMS ENGINEERING
|
| Our unaided eyes can detect two of the characteristics of image-forming visible light from a scene, namely, the intensity and the wavelength, which can then be encoded into perceptual qualities of brightness and color. Our eyes, however, are effectively blind to the third characteristic of light, its polarization. It is well known, however, that several species of animals have visual systems capable of detecting light's polarization and using the information ... |
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| High Performance and High-Fidelity Aeroelastic Simulation of Fixed Wing Aircraft with Deployable Control Surfaces |
09 OCT 2007 |
14 pages |
| Authors:
Michael Lesoinne; COLORADO UNIV AT BOULDER DEPT OF AEROSPACE ENGINEERING SCIENCES
|
| The goals of this research is to overcome the difficulties created by mesh shearing in the simulation of aircraft with large control surface deflection. The origin of the difficulties for the correct modeling of large control surface deflection is that they introduce shearing in the mesh at the place where the control surface meets the fixed part of the wing. Such a geometrical shearing is very difficult to handle, in ... |
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| Defense Acquisitions: Status and Challenges of Joint Forces Command's Limited Acquisition Authority |
APR 2007 |
32 pages |
| Authors:
Bruce H. Thomas; Lily J. Chin; Joseph E. Dewechter; Bonita J. Oden; Marie Ahearn; Ken Patton; GOVERNMENT ACCOUNTABILITY OFFICE WASHINGTON DC
|
| Over 3 years ago, Congress granted limited acquisition authority (LAA) to U.S. Joint Forces Command (JFCOM) for a 3-year period to expedite development and acquisition of certain warfighter equipment. Congress directed GAO to report on JFCOM LAA implementation. GAO's report, issued in November 2005, said JFCOM finished five LAA projects and was working on a sixth project, and that JFCOM had experienced difficulty finding funding to develop, acquire, and sustain ... |
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| Area of Common Overlap of Three Circles |
OCT 2006 |
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| Authors:
M. P. Fewell; DEFENCE SCIENCE AND TECHNOLOGY ORGANISATION EDINBURGH (AUSTRALIA) MARITIME OPERATIONS DIV
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| This Note presents the unsolved to an apparent hitherto tin solved geometrical problem: the derivation of a closed-form algebraic expression of the area of common overlap of three circles, such as can occur a three-circle Venn diagram. The results presented here have general significance in the corpus of menstruation formulae, and could be of specific use in any quantitative application of the three-circle Venn diagram such as for example, in ... |
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| Towards Determination of Visual Requirements for Augmented Reality Displays and Virtual Environments for the Airport Tower |
01 JUN 2006 |
29 pages |
| Authors:
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION MOFFETT FIELD CA AMES RESEARCH CENTER
|
| The visual requirements for augmented reality or virtual environments displays that might be used in real or virtual towers are reviewed with respect to similar displays already used in aircraft. As an example of the type of human performance studies needed to determine the useful specifications of augmented reality displays, an optical see-through display was used in an ATC Tower simulation. Three different binocular fields of view (14 , 28 ... |
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| Computer-Aided Detection of Mammographic Masses in Dense Breast Images |
JUN 2006 |
56 pages |
| Authors:
Lisa M. Kinnard; HOWARD UNIV WASHINGTON DC
|
| This document describes the research tasks and educational activities in which the PI has been engaged during the second phase of this post-doctoral work. The PI has selected 300 dense breast masses for testing using an automated segmentation algorithm which combines region growing with cost function analysis. This method has been validated on all cases using overlap, accuracy, sensitivity, specificity, Dice Similarity Index, and kappa statistics by three expert radiologists. ... |
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| Computerized Interpretation of Dynamic Breast MRI |
MAY 2006 |
52 pages |
| Authors:
Weijie Chen; CHICAGO UNIV IL
|
| In the past three years we have investigated computerized methods for analyses and interpretation of breast MR images. We investigated an automatic method for correcting intensity inhomogenieity artifacts in breast MR images. We developed a fuzzy c-means (FOM) based method for 3D lesion segmentation which is a key procedure in computerized interpretation of breast MR images including differential diagnosis and assessment of response to therapy. The computerized segmentation yielded 07% ... |
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| Spatially-Resolved Temperature Diagnostic for Supersonic Flow Using Cross-Beam Doppler-Limited Laser Saturation Spectroscopy |
MAR 2006 |
185 pages |
| Authors:
Grady T. Phillips; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
|
| Optical techniques for measuring the temperature in three-dimensional supersonic reactive flows have typically depended on lineshape measurements using single-beam laser absorption spectroscopy. However, absorption over extended path lengths in flows with symmetric, turbulent eddies can lead to systematically high extracted temperatures due to Doppler shifts resulting from flow along the absorption path. To eliminate these problems, Cross-Beam Saturation Absorption Spectroscopy (CBSAS) and Cross-Beam Inter-Modulated Fluorescence (CBIMF) have been developed which ... |
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| Metabonomics of Pig Blood Plasma Following Whole Body Exposure to Low Levels of Gb Vapor |
01 OCT 2005 |
7 pages |
| Authors:
Vicky L. Bevilacqua; Terreiice G. D'Onofrio; K. M. Jakubowski; Stanley W. Hulet; Kelly J. Maguire; Jennifer L. Edwards; James A. Laramee; Mark D. Brickhouse; EDGEWOOD CHEMICAL BIOLOGICAL CENTER ABERDEEN PROVING GROUND MD
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| Chemometric approaches have the potential to enhance defense operations against chemical warfare agents (CWAs), for which complex data must be analyzed. Therefore, we have begun an exploration of the use of chemometrics for the correlation of metabolic change with low-level CWA exposure in animal models. In this exploratory study, pigs were exposed to GB (sarin) over a range of concentrations (0.028-0.310 mg/cubic meters) and exposure times (0-180 minutes). Blood (4-8 ... |
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| National Institutes of Health Consensus Development Project on Criteria for Clinical Trials in Chronic Graft-versus-Host Disease: I. Diagnosis and Staging Working Group Report |
09 SEP 2005 |
13 pages |
| Authors:
Alexandra H. Filipovich; Daniel Weisdorf; Steven Pavletic; Gerard Socie; John R. Wingard; Stephanie J. Lee; PAUL MARTIN; Jason Chien; Donna Przepiorka; Daniel Couriel; CHILDREN'S HOSPITAL MEDICAL CENTER CINCINNATI OH
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| This consensus document is intended to serve 3 functions. First, it standardizes the criteria for diagnosis of chronic graft-versus-host disease (GVHD). Second, it proposes a new clinical scoring system (0-3) that describes the extent and severity of chronic GVHD for each organ or site at any given time, taking functional impact into account. Third, it proposes new guidelines for global assessment of chronic GVHD severity that are based on the ... |
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| The Quasi Government: Hybrid Organizations with Both Government and Private Sector Legal Characteristics |
18 MAY 2005 |
|
| Authors:
Ronald C. Moe; Kevin R. Kosar; LIBRARY OF CONGRESS WASHINGTON DC CONGRESSIONAL RESEARCH SERVICE
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| This report provides an overview of federally related entities that possess legal characteristics of both the governmental and private sectors. These hybrid organizations (e.g., Fannie Mae, National Park Foundation, In-Q-Tel), collectively referred to in this report as the quasi government, have grown in number, size, and importance in recent decades. A brief review of executive branch organizational history is followed by a description of entities with ties to the executive ... |
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| Phases III AND IV: A Dangerous Overlap |
17 MAY 2005 |
27 pages |
| Authors:
Joseph Bowe; NAVAL WAR COLL NEWPORT RI JOINT MILITARY OPERATIONS DEPT
|
| The recent war in Iraq has demonstrated that contemporary and future wars are likely to increase the overlap between the decisive combat (phase III) and transition operations (phase IV) of a campaign. The presence of this overlap requires operational commanders to ensure their forces are trained to and equipped with both lethal and non-lethal means in order to be able to use the correct level of force necessary to accomplish ... |
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| Reporting of Counterintelligence and Security Indicators by Supervisors and Coworkers |
MAY 2005 |
54 pages |
| Authors:
Suzanne Wood; Kent S. Crawford; Eric L. Lang; DEFENSE PERSONNEL SECURITY RESEARCH CENTER MONTEREY CA
|
| The purpose of this section is to report our review of all of the different policy documents related to supervisor and coworker reporting and to compare and contrast the requirements of various entities with regard to this subject. PERSEREC researchers reviewed the policies, Directives, and Executive Orders that concern the reporting of CI- and security-related behaviors. The review explored areas of overlap, specificity, and authoritative procedures, i.e., whether one policy ... |
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| Nanosecond Thermal Processing for Self-Aligned Silicon-on-Insulator Technology |
APR 2005 |
26 pages |
| Authors:
A. D. Ramirez; Offord B. W.; S. D. Russell Popp J. F. Rowland; SPACE AND NAVAL WARFARE SYSTEMS CENTER SAN DIEGO CA
|
| Future radar and communications systems will have the need to use CMOS integrated circuits to provide increased analog and digital functions. Conventional CMOS technology has been locked into designing processes around polysilicon gate material because of the need for self-alignment. Low-resistance metal gates are superior for high-speed devices; however, their low melting point prevented their use in a self-aligned structure that experiences high-temperature processing (>700 oC). Silicon-on-Insulator (SOI) technology, non-refractory ... |
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| Doppler Aliasing Reduction in Wide-Angle Synthetic Aperture Radar Using a Linear Frequency Modulated Random Stepped-Frequency Waveform |
MAR 2005 |
99 pages |
| Authors:
Jason McMahon; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT/DEPT OF ENGINEERING PHYSICS
|
| This research examines the theory, application, and results of using Random Stepped-Frequency (RSF) waveforms to mitigate Doppler aliasing in a wide-angle Synthetic Aperture Radar (SAR) imaging scenario. Severe Doppler aliasing typically occurs in this scenario since range extent requirements force the pulse repetition frequency to a value violating the lower bound for Doppler aliasing. Building on previous research, this work expands upon RSF waveform analysis using a Linear Frequency Modulated ... |
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| Targeting MRS-Defined Dominant Intraprostatic Lesions with Inverse-Planned High Dose Rate Brachytherapy |
FEB 2005 |
58 pages |
| Authors:
Jean Pouliot; I-Chow Hsu; John Kurhanewicz; Sue Noworelski; CALIFORNIA UNIV SAN FRANCISCO
|
| During this first year, we have obtained CHR approval (December 2004) from the three step process (C.U., P.R.C. and C.H.R.) committees at UCSF. Patient enrollment will begin immediately after receiving CHR approval from D.O.D. The accuracy of aligning MRI/MSRI data acquired with different types of endorectal probes to images acquired without a probe was determined. A 94% Average overlap of prostate contours was obtained using rigid endorectal coil. We have ... |
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| Development and Analysis of Integrated C4ISR Architectures |
2005 |
19 pages |
| Authors:
Kristin Giammarco; Michael Carlomusto; J. D. Lock; DEFENSE ACQUISITION UNIV ALEXANDRIA VA
|
| The U.S. Army continues to struggle with creating doctrinally correct, robust, consistent, and all-inclusive operational, system, and technical views based on the Department of Defense Architecture Framework. Having detailed, integrated, and up-to-date architecture views is essential to answering questions involving alternative system designs and operating procedures, conducting gap, overlap, and connectivity analyses among programs of record, and providing traceable data upon which to base near- and far-term acquisition decisions as ... |
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| Stress and Performance A Review of the Literature and its Applicability to the Military |
2005 |
|
| Authors:
Jennifer Kavanagh; RAND CORP SANTA MONICA CA
|
| The literature on the relationship between stress and performance is extensive and diverse. The question of how stress affects performance is a relevant one given the nature of today's security environment and the challenges faced by military personnel on frequent and long deployments. As a tool for military planners and trainers to better prepare and support personnel, this review examines and summarizes existing studies on how stress affects performance and ... |
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| Uncertainty of Stability Variances Based on Finite Differences |
SEP 2004 |
15 pages |
| Authors:
C. A. Greenhall; W. J. Riley; MASSACHUSETTS UNIV AMHERST COLL OF ENGINEERING
|
| This work gives an algorithm for computing the degrees of freedom of estimators of Allan and Hadamard variances, including their modified versions. A consistent approach is used throughout. |
|
| Multiscale Modeling for the Design of Autonomic Healing Structural Composite Materials |
31 AUG 2004 |
10 pages |
| Authors:
John Kieffer; MICHIGAN UNIV ANN ARBOR DEPT OF MATERIALS SCIENCE AND ENGINEERING
|
| This MEANS initiative research project consists of a collaborative effort between students, postdocs, and faculty at the University of Illinois and at the University of Michigan. The work involves the integration of length and time scale spanning computational methods of investigation into a suite of design tool for materials optimization. Concurrent experimental measurements serve to motivate and validate the simulation approaches. Specifically, the challenges posed by the design of autonomously ... |
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| Active Vibration Control for Free Electron Lasers |
DEC 2003 |
103 pages |
| Authors:
Aaron M. Stetler; NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF PHYSICS
|
| This thesis is concerned with active control methods for stabilizing the mirror vibrations of free-electron laser weapons on ships so that the laser continues to deliver full power Alignment of the mirrors is critical for proper operation because the electron beam and optical mode must substantially overlap. The alignment is expected to be difficult to maintain in a shipboard environment A theory for controlling the vibrations of a single-degree-of-freedom system ... |
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| Effect of Hypoxia on Gene Expression by Human Hepatocytes (HepG2) |
2003 |
14 pages |
| Authors:
L. A. Sonna; M. L. Cullivan; H. K. Sheldon; R. E. Pratt; C. M. Lilly; ARMY RESEARCH INST OF ENVIRONMENTAL MEDICINE NATICK MA THERMAL AND MOUNTAIN MEDICINE DIVISION
|
| The full extent to which hypoxia produces gene expression changes in human cells is unknown. We used late-generation oligonucleotide arrays to catalog hypoxia-induced changes in gene expression in HepG2 cells. Five paired sets of cultures were subjected to either control (room air-5% CO2) or hypoxic (1% 02-5% CO2) conditions for 24 h, and RNA was analyzed on an Affymetrix cDNA array containing 12,600 sequences. A statistically significant change in expression ... |
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| A Program Manager's Guide for Software Cost Estimating |
DEC 2002 |
79 pages |
| Authors:
Andrew L. Dobbs; NAVAL POSTGRADUATE SCHOOL MONTEREY CA GRADUATE SCHOOL OF BUSINESS AND PUBLICPOLICY
|
| This thesis will assist current and future program managers by outlining a process to ensure the software cost estimates developed for a system will be credible and supportable throughout the life of the program. This thesis also identifies many of the problems associated with software cost estimating and recommends potential solutions, One of the critical parameters for estimating software cost is the quantity of source lines of code (SLOC) required ... |
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| Termination of String Rewriting Rules that have One Pair of Overlaps |
OCT 2002 |
16 pages |
| Authors:
Alfons Geser; INSTITUTE FOR COMPUTER APPLICATIONS IN SCIENCE AND ENGINEERING HAMPTON VA
|
| This paper presents a partial solution to the long standing open problem of termination of one-rule string rewriting. Overlaps between the two sides of the rule play a central rule in existing termination criteria. We characterize termination of all one-rule string rewriting systems that have one such overlap at either end. This both completes a result of Kurth and generalizes a result of Shikishima-Tsuji et al. |
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| Running Head: Scaled P300 Scalp Profiles in Detection of Deception |
SEP 2002 |
100 pages |
| Authors:
J. P. Rosenfeld; NORTHWESTERN UNIV EVANSTON IL DEPT OF PSYCHOLOGY
|
| Three studies were performed. The first two dealt with countermeasures to brain wave-based detection of deception in concealed information test protocols. There are two kinds of such protocols extant. One, the "6-probe" protocol utilizes multiple different crime details whose brain responses are averaged together. This protocol was easily defeated in the first study, as the detection rates dropped from 82% detection in the simple guilty group to 18% in the ... |
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| Induced Noise Control |
JUL 2002 |
67 pages |
| Authors:
G. Maidanik; K. J. Becker; NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD
|
| The induced noise control parameter is defined in terms of the ratio of the stored energy in a master dynamic system, when it is coupled to an adjunct dynamic system, to that stored energy when the coupling is absent. An induced noise control parameter comprises of two factors. The first is defined in terms of the ratio of the indigenous loss factor of the master dynamic system to the virtual ... |
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| Current Apertured Vertical Electron Transistor (CAVET) |
DEC 2001 |
14 pages |
| Authors:
Umesh K. Mishra; CALIFORNIA UNIV SANTA BARBARA
|
| We have demonstrated the first GaN current aperture vertical electron transistor (CAVET). A 2 micrometer thick GaN:Si drain region followed by a 0.4 micrometer GaN:Fe insulating layer and an 800 Angstrom unintentionally doped GaN cap were grown by MOCVD on a c-plane sapphire substrate. Channel apertures were etched, and a maskless regrowth was performed to grow conducting GaN inside the channel as well as to thicken the UID GaN above ... |
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| Export Promotion: Government Agencies Should Combine Small Business Export Training Programs |
SEP 2001 |
18 pages |
| Authors:
GENERAL ACCOUNTING OFFICE WASHINGTON DC
|
| The interagency Trade Promotion Coordinating Committee was created by the Export Enhancement Act of 1992 to coordinate the delivery of federal export promotion services and to eliminate the areas of overlap and duplication among federal export promotion programs. The 1999 Export Enhancement Act reiterated that eliminating duplication was a primary Committee objective. In 1993, the Committee had recommended that three agencies the Department of Commerce, the Small Business Administration, and ... |
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| Comparison of Predicted and Measured Formation Flight Interference Effects |
AUG 2001 |
14 pages |
| Authors:
William B. Blake; David R. Gingras; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH AIR VEHICLES DIRECTORATE
|
| Results from a wind tunnel test of two delta wings in close proximity are presented and compared with predictions from a vortex lattice method. The wake effects on lift are slightly overpredicted when the aircraft overlap in the spanwise direction. The wake induced effects on pitching and rolling moment are well predicted. A maximum induced drag reduction of 25% is measured on the trail aircraft, compared with a 40% predicted ... |
|
| Flow Testing of Cytec FM300 and FM300-2K Structural Adhesives |
JUL 2001 |
|
| Authors:
Roger Vodicka; DEFENCE SCIENCE AND TECHNOLOGY ORGANISATION MELBOURNE (AUSTRALIA)
|
| The flow of Cytec FM300 and FM300-2K structural film adhesives was examined using flow tests employing an autoclave or by using dead-weights to apply pressure. The effect of ageing the adhesive at room-temperature was examined for periods of up to 60 days. FM300 adhesive was found to show minimal changes in flow and it was difficult to determine the adhesive age from the flow test results. The effects of ageing ... |
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| Visual Search Performance in HMDs with Partial Overlapped Binocular Fields-of-View |
JUN 2001 |
32 pages |
| Authors:
Victor Klymenko; Thomas H. Harding; Howard H. Beasley; Clarence E. Rash; ARMY AEROMEDICAL RESEARCH LAB FORT RUCKER AL
|
| A helmet-mounted display (HMD) with a partial binocular overlap field-of-view (FOV) is slated for use with the Army's new RAH-66 Comanche helicopter in order to increase the available size of the FOV. The current investigation examined how three FOV configurations affect performance in a visual search task under demanding viewing conditions. Performance was measured by response time and accuracy in the full overlap FOV, the convergent partial overlap FOV, and ... |
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| Analysis of Interval Changes on Mammograms for Computer Aided Diagnosis |
MAY 2001 |
27 pages |
| Authors:
Lubomir Hadjiiski; MICHIGAN UNIV ANN ARBOR
|
| A multistage regional registration technique (MRRT) was developed for identifying masses on temporal pairs of mammograms. It was investigated the use of the density-weighted contrast enhancement (DWCE) technique to improve the localization of the corresponding mass on the prior mammogram. 179 temporal pairs of mammograms containing biopsy-proven masses were used for evaluation. 84% of the estimated lesion locations resulted in an area overlap of at least 50% with the true ... |
|
| Information War Crimes: Mitnick Meets Milosevic |
APR 2001 |
41 pages |
| Authors:
Darwyn O. Banks; AIR COMMAND AND STAFF COLL MAXWELL AFB AL
|
| In this paper the author examines areas of overlap between information crimes (also known as hacking and cyberterrorism) and traditional war crimes as defined by the internationally accepted laws of armed conflict paying special attention to the principles of chivalry, humanity, proportionality, and military necessity. This paper further explores the potential culpability of information warfare practitioners should this intersection of information warfare and war crimes become codified into international law. ... |
|
| Dependence of the Induced Loss Factor on the Coupling Forms and Coupling Strengths: Energy Analysis |
APR 2001 |
62 pages |
| Authors:
G. Maidanik; NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD
|
| In two recent papers the induced loss factor is determined via the modification to the loss factor in the linear impedance of a master oscillator caused by its coupling to a set of satellite oscillators. A recapitulation of this linear impedance analysis (LIA) is presented. A loss factor is basically an energetic quantity and, therefore, one may inquire whether the induced loss factor may be estimated via an energy analysis ... |
|
| Task Force Hawk: Operational Mobility Lessons for the Joint Force Commander |
05 FEB 2001 |
24 pages |
| Authors:
Cynthia M. Womble; NAVAL WAR COLL NEWPORT RI
|
| The deployment of the U.S. Army Task Force (TF) Hawk during Operation Allied Force challenged the ability of the U.S. military to provide a robust capability for operational mobility in the overlap between inter- and intra- theater mobility. This paper identifies operational mobility challenges faced by the Joint Force Commander (JFC) by studying the deployment of TF Hawk and makes recommendations for the JFC to solve these problems. TF Hawk ... |
|
| Support for Conference Entitled "The Role of Neural Plasticity in Chemical Intolerance" |
OCT 2000 |
29 pages |
| Authors:
Rashid Shaikh; NEW YORK ACADEMY OF SCIENCES NY
|
| Chemical Intolerance (CI), including multiple chemical sensitivity, has been an intriguing problem in environmental health, and it has been suspected that CI played a role in Gulf War Syndrome. The uniqueness of the conference was its focus on neuro-biological changes, which has appeared to occur in individuals with CI. The conference provided a forum for the exchange of ideas among leading investigators in an effort ... |
|
| Toward an Understanding of People's Liberation Army Information Warfare Doctrine |
28 JUN 2000 |
123 pages |
| Authors:
Carson L. Tavenner; AIR FORCE INST OF TECH WRIGHT-PATTERSONAFB OH
|
| Chinese and American Information Warfare (IW) terminology and concepts overlap due to the Chinese incorporation of established American airpower doctrinal concepts into their own publications. Leaders and theorists within the People's Liberation Army must reexamine this incorporation of American IW thinking into the development of their own IW doctrine because the incorporation is incomplete and will cause fundamental problems for the PLA in implementing ... |
|
| Analysis of Interval Changes on Mammograms for Computer Aided Diagnosis |
MAY 2000 |
50 pages |
| Authors:
Lubomir Hadjiiski; MICHIGAN UNIV ANN ARBOR
|
| A multistage regional registration technique was developed for identifying masses on temporal pairs of mammograms. In the first stage, an initial fan-shape search region was defined on the prior mammogram. In the second stage, the location of the fan-shape region was refined by warping, based on an affine transformation and simplex optimization. A new refined search region was defined on the prior mammogram. In the third stage a search for ... |
|
| Resolving Frequency Ambiguities in Step-Frequency Compressive Receivers |
DEC 1999 |
143 pages |
| Authors:
Oktay Ceylan; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Present Compressive Receiver implementations are limited due to their analog implementation and the necessity for digital processing of the serial output data. Previous research has shown that a stepped-frequency digital design using sub-Nyquist sampling mitigates many of the limitations. An algorithm that implements the Chinese Remainder Theorem to solve the frequency ambiguities that occur in the design due to sub-Nyquist sampling with high resolutions is investigated. Different ... |
|
| Organization and Components of Psychomotor Ability |
NOV 1999 |
54 pages |
| Authors:
Scott Chaiken; Patrick Kylionen; William Tirre; AIR FORCE RESEARCH LAB BROOKS AFB TX HUMAN EFFECTIVENESS DIRECTORATE
|
| We administered test batteries of general cognitive and specific cognitive information-processing ability along with two replications of a psychomotor battery sampling from Fleishman's (1964) taxonomy of psychomotor tasks (i.e. control precision, multi-limb coordination, rate control, and response orientation). All tests were administered via computer. Fleishman's priority categories were not supported by structure modeling of the data. The psychomotor factors that were supported were a ... |
|
| Slim-trees: High Performance Metric Trees Minimizing Overlap Between Nodes |
OCT 1999 |
18 pages |
| Authors:
Caetano Traina Jr.; Agma Traina; Bernhard Seeger; Christos Faloutsos; CARNEGIE-MELLON UNIV PITTSBURGH PA SCHOOL OF COMPUTER SCIENCE
|
| In this paper we present the Slim-tree, a dynamic tree for organizing metric datasets in pages of fixed size. The Slim-tree uses the "fat-factor" which provides a simple way to quantify the degree of overlap between the nodes in a metric tree. It is well-known that the degree of overlap directly affects the query performance of index structures. There are many suggestions to reduce overlap in ... |
|
| Occupational Survey Report. Communications-Computer System Operators andControllers, AFSC 3C0X1/3C2X1 |
OCT 1999 |
110 pages |
| Authors:
AIR FORCE OCCUPATIONAL MEASUREMENT SQUADRON RANDOLPH AFB TX
|
| This report is an analysis of occupational survey data from the Communications-Computer Systems Operator and Controller career ladders conducted by the Air Force Occupational Measurement Squadron (AFOMS). Authority for conducting occupational surveys is contained in AFI 36-2623. Computer products used in this report are available for use by operations and training officials. The last OSRs pertaining to these career ladders were published in June 95 for ... |
|
| The Effect of Helmet Mounted Display Field-of-View Configurations on Target Acquisition |
SEP 1999 |
35 pages |
| Authors:
Victor Klymenko; Thomas H. Harding; Howard H. Beasley; John S. Martin; ARMY AEROMEDICAL RESEARCH LAB FORT RUCKER AL
|
| Monocular helmet-mounted displays (HMDs) currently are used in the Army's AH-64 Apache helicopter. A partial binocular overlap HMD is slated for use with the Army's new RAH-66 Comanche helicopter. The size of the binocular HMD's field-of-view (FOV) is the size of the visual world available to the Army helicopter pilot via an imaging sensor. The Comanche HMD presents the FOV in a partial binocular overlap configuration rather than a full ... |
|
| High-Torque Quiet Gear |
27 JUL 1999 |
|
| Authors:
Paul E. Moody; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| A high-torque quiet gear construction consists of an inner having a plurality of circumferentially spaced arms extending radially outwardly therefrom, and an outer ring member having a plurality of circumferentially spaced teeth extending radially inwardly therefrom. The ring member further includes a plurality of gear formations on an outer surface thereof for intermeshing with other gears. The teeth of the ring member are received in spaced relation in corresponding spaces ... |
|
| Concepts for Lift Improvements of a High-Lift Military Airfoil |
01 JUL 1999 |
11 pages |
| Authors:
D. R. Hall; S. S. Dodbele; NAVAL AIR WARFARE CENTER AIRCRAFT DIV PATUXENT RIVER MD
|
| This paper describes the computational analysis of several concepts to improve the maximum lift of a military high-lift airfoil configuration. The computational results are compared with the wind-tunnel data obtained for a gap and overhang study and a Gurney flap study. In the wind tunnel experiments, optimizing the gap and over-hang and adding a Gurney flap provided the largest increases, on the order of 3-4%. These trends were duplicated in ... |
|
| Agent Communication with Differentiated Ontologies: Eight New Measures of Description Compatibility |
JAN 1999 |
39 pages |
| Authors:
Peter C. Weinstein; William P. Birmingham; MICHIGAN UNIV ANN ARBOR DEPT OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE
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| We propose an approach to achieve appropriate exchange of services and data in distributed systems subject to semantic heterogeneity. We assume differentiated ontologies: that terms have formal definitions as concepts related to other concepts, that local concepts inherit from concepts that are shared, and that most or all primitives are shared. We then develop measures of description compatibility using the structure of the source and target definitions. We evaluate these ... |
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| U.S. Department of Agriculture: Similarities Between the Activities of the Department and Other Federal Agencies |
09 DEC 1998 |
31 pages |
| Authors:
GENERAL ACCOUNTING OFFICE WASHINGTON DC RESOURCES COMMUNITY AND ECONOMIC DEVELOPMENT DIV
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| We were asked to identify USDA activities that are similar to the activities conducted by other federal agencies and to discuss USDA'S efforts to comply with the requirements of the Government Performance and Results Act. In response, we identified apparently similar activities, such as food safety and land management, that are carried out by more than one agency; examined previous GAO reports that highlight these similarities; and reviewed the goals ... |
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