| Lighting and Astronomy |
Dec-2009 |
7 pages |
| Authors:
Christian B Luginbuhl; Constance E Walker; Richard J Wainscoat; NAVAL OBSERVATORY WASHINGTON DC
|
 | The rapid qrowth of light pollution threatens the future of astronomical observation. Detailed modeling of how light from the ground propagates through the atmosphere suggests waysto limit the damage. |
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| Microchannel Heat Sink with Micro Encapsulated Phase Change Material (MEPCM) Slurry |
31-May-2009 |
83 pages |
| Authors:
Louis Chow; Jian-hua Du; Amit Gupta; Krishna Kota; Ranganathan Kumar; Sarada Kuravi; UNIVERSITY OF CENTRAL FLORIDA ORLANDO OFFICE OF RESEARCH AND COMMERCIALIZATION
|
| High heat flux removal from devices such as Insulated-Gate Bipolar Transistor (IGBT) and Monolithic Microwave Integrated Circuit (MMIC) will be important for future Navy ships. Micro encapsulated phase change material (MEPCM) slurry was used as a heat transfer fluid inside a microchannel instead single phase fluid. Presence of phase change material increases the effective heat capacity of the fluid. The performance of encapsulated phase change material (EPCM) slurry flow in ... |
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| Cooling and Trapping of Neutral Atoms |
30-Apr-2009 |
15 pages |
| Authors:
Harold Metcalf; STATE UNIV OF NEW YORK AT STONY BROOK RESEARCH FOUNDATION
|
| We work on optical forces on atoms from non-monochromatic light. We have explored the Dichromatic force, measured its properties, provided a dressed state (Floquet) theory, and developed it into a practical tool for atomic nanofabrication. In addition. we have explored frequency swept light in adiabatic rapid passage to produce optical forces ten times larger than ordinary radiative forces. An extension of this theoretical description of the bichromatic force has led ... |
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| Modeling of High Capacity Passive Cooling System |
Mar-2009 |
87 pages |
| Authors:
Ashraful Islam; BANGLADESH UNIV OF ENGINEERING AND TECHNOLOGY DHAKA (BANGLADESH)
|
| High capacity passive cooling system studied in this project utilizes the thermoloop heat transfer concept (THTC). This device is an assemblage of Evaporator, Condenser, Non-return valves and Reservoir charged with a liquid for removing heat from any source upon which the evaporator is attached. Extensive experiments have been conducted and using experimental results a software module has been developed for to analyze the performance of the device for different operating ... |
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| From The Ground Up I: Light Pollution Sources in Flagstaff, Arizona |
Feb-2009 |
20 pages |
| Authors:
Christian B Luginbuhl; G W Lockwood; Donald R Davis; Kevin Pick; Jennifer Selders; NAVAL OBSERVATORY FLAGSTAFF AZ
|
| We develop an estimate of the complete outdoor lighting of Flagstaff Arizona, as well as lighting use densities (lumens per acre) for a number of different land uses. We find a total outdoor light output of 173 million lumens (Mlm) including sports lighting, and 139 Mlm without sports lighting, with an uncertainty of about 7%. The average fraction escaping directly upward from light fixtures is estimated to be 8.3%. After ... |
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| Demonstration and Validation of Technologies to Mitigate Corrosion on Infrastructure Components at Fort Bragg: Initial Results |
Feb-2009 |
30 pages |
| Authors:
Robert Mason; Larry Gintert; Michael Miller; Kevin Klug; Mark Singleton; Vincent Hock; Richard Lampo; CONCURRENT TECHNOLOGIES CORP ALEXANDRIA VA
|
| A briefing on technologies used to mitigate corrosion on the mechanical room piping system and the cooling tower pumps at Fort Bragg, NC. |
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| Air-Activated Ration Heaters |
Dec-2008 |
7 pages |
| Authors:
Paul DellaRocca; Ramesh Kainthla; Charles Sesock; Lawrence Tinker; ARMY NATICK SOLDIER RESEARCH DEVELOPMENT AND ENGINEERING CENTER MA
|
| The current Mg-Fe flameless heater is based on the accelerated corrosive oxidation of magnesium resulting from dissimilar metals placed in contact with an electrolyte1,2. Water is used to activate the heater, and hydrogen is released as a by-product. RBC Technologies (RBC) and the Natick Soldier RDEC have developed a flameless heater technology based on the direct oxidation of a metal in air. The new heater technology requires no additional reactants, ... |
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| Convective Evaporation Through Water-Permeable Membranes for Rapid Beverage Chilling |
Dec-2008 |
8 pages |
| Authors:
D Pickard; M Izenson; W Chen; C W Haering; J Sung; CREARE INC HANOVER NH
|
| This paper presents the results of a Phase III SBIR project that aims to produce a lightweight, evaporative beverage chiller. Soldiers equipped with this Individual Cooling Element (ICE) will be able to cool their beverages by at least 11 deg C (20 deg F) in hot, arid environments where relief from heat stress is critical. Testing and analysis showed that it was feasible to meet performance goals for high cooling ... |
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| An Army Illumination Model (AAIM) |
Nov-2008 |
42 pages |
| Authors:
Richard C Shirkey; ARMY RESEARCH LAB WHITE SANDS MISSILE RANGE NM COMPUTATIONAL AND INFORMATION SCIENCE DIRECTORATE
|
| An Army Illumination Model (AAIM), for use with Night Vision Goggles, has updated the Light Urban Model Effects (LUME) with new algorithms for cloud reflection; it also has been augmented with a population database for model input. In addition to providing illumination levels for cities, the model now includes values for lunar illumination under clear or (partially) cloudy skies at ground level. AAIM may be used in tactical decision aids ... |
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| An Underwater Light Attenuation Scheme for Marine Ecosystem Models |
Oct-2008 |
12 pages |
| Authors:
Bradley Penta; ZhongPing Lee; Raphael M Kudela; Sherry L Palacios; Deric J Gray; Jason K Jolliff; Igor G Shulman; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS OCEANOGRAPHY DIV
|
| Simulation of underwater light is essential for modeling marine ecosystems. A new model of underwater light attenuation is presented and compared with previous models. In situ data collected in Monterey Bay, CA. during September 2006 are used for validation. It is demonstrated that while the new light model is computationally simple and efficient it maintains accuracy and flexibility. When this light model is incorporated into an ecosystem model, the correlation ... |
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| General Procedure for Protective Cooling and Equipment Evaluations Relative to Heat and Cold Stress |
01-Sep-2008 |
27 pages |
| Authors:
Catherine O'Brien; Bruce S Cadarette; Thomas L Endrusick; Laurie A Blanchard; Xiaoxiang Xu; Larry G Berglund; Michael N Sawka; Reed W Hoyt; ARMY RESEARCH INST OF ENVIRONMENTAL MEDICINE NATICK MA THERMAL AND MOUNTAIN MEDICINE DIVISION
|
| As part of the U.S. Army materiel development and acquisition process, clothing and individual equipment (CIE) must undergo a Health Hazard Assessment (HHA) conducted by the U. S. Army Center for Health Promotion and Preventive Medicine. Scientists at the U.S. Army Research Institute of Environmental Medicine (USARIEM) are world experts in thermal physiology, biophysics, and biomedical modeling and are uniquely capable of providing technical measurements and subject matter expertise for ... |
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| Two-Phase Flow in High-Heat-Flux Micro-Channel Heat Sink for Refrigeration Cooling Applications. Part 1: Micro-Channel Heat Sink for Direct Refrigeration Cooling |
01-Sep-2008 |
340 pages |
| Authors:
Issam Mudawar; Jaeseon Lee; Myung Ki Sung; PURDUE UNIV LAFAYETTE IN SCHOOL OF MECHANICAL ENGINEERING
|
| This report examines the pressure drop and heat transfer characteristics of two-phase micro-channel heat sinks. New models and correlations are proposed for both saturated and subcooled boiling conditions. These tools are shown to provide accurate predictions of pressure drop, two-phase heat transfer coefficient and critical heat flux. Also discussed in this report is a new hybrid cooling system that combines the cooling attributes of micro-channel flow and jet impingement. It ... |
|
| Two-Phase Flow in High-Heat-Flux Micro-Channel Heat Sink for Refrigeration Cooling Applications. Part 2: Low Temperature Hybrid Micro-Channel/Micro-Jet Impingement Cooling |
01-Sep-2008 |
172 pages |
| Authors:
Issam Mudawar; Jaeseon Lee; Myung Ki Sung; PURDUE UNIV LAFAYETTE IN SCHOOL OF MECHANICAL ENGINEERING
|
| This report examines the pressure drop and heat transfer characteristics of two-phase micro-channel heat sinks. New models and correlations are proposed for both saturated and subcooled boiling conditions. These tools are shown to provide accurate predictions of pressure drop, two-phase heat transfer coefficient and critical heat flux. Also discussed in this report is a new hybrid cooling system that combines the cooling attributes of micro-channel flow and jet impingement. It ... |
|
| Energy Optimization Assessment at U.S. Army Installations: Fort Bliss, TX |
Sep-2008 |
177 pages |
| Authors:
David M Underwood; William D Jr; Chvala; Curt Bjork; Leon Shapiro; Robert Colbert; Alfred Woody; James P Miller; Alexander M Zhivov; Douglas Dixon; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING RESEARCH LAB
|
| An Energy Optimization Assessment was conducted at Fort Bliss as a part of the Annex 46 Holistic Assessment Toolkit on Energy Efficient Retrofit Measures for Government Buildings (EnERGo) initiative to identify energy inefficiencies and wastes and propose energy related projects with applicable funding and execution methods that could enable the installation to better meet the energy reduction requirements mandated by Executive Order 13123 and Energy Policy Act (EPAct) 2005. The ... |
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| Thermochemical and Physical Properties of Fluids, Lubricants and Related Materials. Delivery Order 0001 : Improved Methods Development for Determining Thermophysical and Thermochemical Properties of Fluids, Lubricants and Related Materials |
Jul-2008 |
154 pages |
| Authors:
Arthur A Krawetz; PHOENIX CHEMICAL LAB INC CHICAGO IL
|
| A new method is described that determines the corrosion protection of fluids, lubricants and related materials and automatic equipment for the measurement thereof. Chemical and physical properties of experimental hydraulic fluids, dielectric coolants, grease and related materials are reported. |
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| Preparing for Beslan: Anti-Terrorism Recommendations for an American School |
13 JUN 2008 |
121 pages |
| Authors:
Gregory D. Mittman; ARMY COMMAND AND GENERAL STAFF COLL FORT LEAVENWORTH KS
|
| The 2004 terrorist attack on a Beslan, Russia middle school left more than a hundred innocent schoolchildren dead and many more injured. In this tragedy's wake, numerous security experts offered American school officials recommendations on how to protect children in the United States. This study asks, "What anti-terrorism measures would be feasible, suitable, and acceptable in protecting an American school from an attack similar to the one that occurred in ... |
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| Africans' Perception of the United States' Post-9/11 Africa Policy and Africom |
13 JUN 2008 |
184 pages |
| Authors:
Moussa D. Mboup; ARMY COMMAND AND GENERAL STAFF COLL FORT LEAVENWORTH KS
|
| The United States' post-9/11 global strategy demonstrates an interest in Africa that contrasts with decades of relative indifference. The 2006 National Security Strategy has stated the United States' commitment to promote security, stability, democracy, and economic prosperity in the continent. Yet, beyond these idealist declarations of good intentions, some foreign policy experts consider that the turnaround in the United States' Africa policy stems from the rising value of the continent ... |
|
| Operational, Social, and Religious Influences upon the Army Chaplain Field Manual, 1926-1952. |
13 JUN 2008 |
124 pages |
| Authors:
Robert Nay; ARMY COMMAND AND GENERAL STAFF COLL FORT LEAVENWORTH KS
|
| The early formulation of the Army Chaplain Field Manual reveals the Army Chaplaincy struggling with individuals using the Army Chaplain Field Manual to further their social and religious beliefs upon other chaplains. The research is to determine what were the influences and who were the chaplains that promulgated their own agenda at the expense of the free exercise of religious beliefs by other chaplains. The research begins with chaplains who ... |
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| Beyond Triage: The Escalation of Empowerment by U.S. Military Forces in Support of International Disaster Response |
13 JUN 2008 |
136 pages |
| Authors:
Michael D. Parsons; ARMY COMMAND AND GENERAL STAFF COLL FORT LEAVENWORTH KS
|
| Joint military doctrine has yet to bridge the gap between lessons learned from U.S. domestic disaster relief and application for international disaster relief. The National Response Framework stresses the need for a response architecture emphasizing the rapid regeneration of local capacity for self-organization. Areas catastrophically disrupted by essentially fault-less chaos began with an infrastructure for governance whose restoration and improvement lies at the heart of the matter. Minding the relationships ... |
|
| Measuring Stability and Security in Iraq |
JUN 2008 |
74 pages |
| Authors:
DEPARTMENT OF DEFENSE WASHINGTON DC
|
| This report to Congress, "Measuring Stability and Security in Iraq," is submitted pursuant to Section 9010 of the Department of Defense Appropriations Act 2007, Public Law 109-289 as amended by Section 1308 of Public Law 110-28 and Section 1224 of Public Law 110-181. The report includes specific performance indicators and measures of progress toward political, economic, and security stability in Iraq, as directed in that legislation. This is the 12th ... |
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| United States Plan for Sustaining the Afghanistan National Security Forces |
JUN 2008 |
41 pages |
| Authors:
DEPARTMENT OF DEFENSE WASHINGTON DC
|
| This report to Congress is submitted consistent with Section 1231 of the National Defense Authorization Act for Fiscal Year 2008 (Public Law 110-181). It includes the United States' plan for sustaining the Afghanistan National Security Forces (ANSF). In accordance with subsection (a), it includes a description of the long-term plan for sustaining the ANSF, with the objective of ensuring that the ANSF will be able to conduct operations independently and ... |
|
| Production of Optical Quality Free Standing Diamond Wafer |
19 MAY 2008 |
16 pages |
| Authors:
Mark Dubinskiy; ONYX OPTICS INC DUBLIN CA
|
| Valdosta Optics Laboratory, Incorporated (VOLI) is pursuing the capabilities of developing synthetic diamond and diamond-like materials, and integrating and implementing these materials in various applications, particularly as a high performance heat spreader for solid state laser (SSL) components, optical coatings, and active engineering materials for micro-electro-mechanical systems (MEMS) and sensors. The current focus is on three key research and development directions, namely: 1) optical quality, highly oriented polycrystalline diamond (PCD) ... |
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| The Effects of Imperfect Automation on Concurrent Performance of Gunner's and Robotics Operator's Tasks in a Simulated Mounted Environment |
MAY 2008 |
52 pages |
| Authors:
Jessie Y. Chen; Peter I. Terrence; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD HUMAN RESEARCH AND ENGINEERING DIRECTORATE
|
| In this study, we simulated a generic mounted environment and conducted an experiment to examine the performance and workload of the combined position of gunner and robotics operator. Aided target recognition (AiTR) (via tactile and visual cueing) with imperfect reliability (false alarm-prone versus miss-prone) was provided to the participants to aid their gunnery task. Besides the gunnery task, participants performed robotics and communication tasks concurrently. Results show that when the ... |
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| Scalability of Robotic Displays: Display Size Investigation |
MAY 2008 |
63 pages |
| Authors:
Elizabeth S. Redden; Rodger A. Pettitt; Christian B. Carstens; Linda R. Elliott; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD HUMAN RESEARCH AND ENGINEERING DIRECTORATE
|
| This study was an investigation of the effect of camera view display sizes on robotic tele-operation control performance in a realistic context. It took place at Fort Benning, Georgia, and used Soldiers from the Officer Candidate School. After training in the operation of the TALON robot system, each Soldier completed exercises using four different display sizes that were chosen to match the size and resolution of displays that might be ... |
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| Performance Sustainment of Two Man Crews During 87 Hours of Extended Wakefulness With Stimulants (Dexedrine, Caffeine, Modafinil) and Napping: Analysis of Aircrew Performance During In-Flight Emergency Situations |
MAY 2008 |
40 pages |
| Authors:
Arthur Estrada; John G. Ramiccio; Patricia A. LeDuc; Ian P. Curry; ARMY AEROMEDICAL RESEARCH LAB FORT RUCKER AL
|
| The objective of this effort, a small part of a larger study, was to determine the extent to which dextroamphetamine, caffeine, modafinil, and placebo affected participant ability to employ good aircrew coordination practices and function as an effective crew during emergency situations. Thirty-two UH-60 rated aviators, participating as crews of two under one of the four conditions, were assessed for aircrew coordination, crew response time, and seven flight performance measures ... |
|
| Test Operations Procedure (TOP) 7-3-057 Pitot-Static System Calibrations |
10 APR 2008 |
35 pages |
| Authors:
ARMY AVIATION TECHNICAL TEST CENTER FORT RUCKER AL
|
| This Test Operations Procedure (TOP) describes the test requirements, objectives, responsibilities, and techniques/methodologies required to perform pitot-static system calibrations. This TOP is used for rotary-wing and fixed-wing aircraft. The TOP will facilitate test planning, execution, and data collection using two techniques (trailing device and pace) and the equipment required to complete pitot-static system calibrations. Variations in platform requirements are discussed within this TOP. These guidelines, along with platform specific capabilities ... |
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| Waveforms for Active Sensing: Optical Waveform Design and Analysis for Ballistic Imaging Through Turbid Media |
04 APR 2008 |
59 pages |
| Authors:
Peyman Milanfar; CALIFORNIA UNIV SANTA CRUZ
|
| This program was intended to develop theory a broad range of algorithms and proof of concept in detection, estimation, and reconstruction of objects embedded in turbid media, which hamper visibility (such as fog, clouds, smoke, and other types of aerosol particles). |
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| A Constant False Alarm Rate-(CFAR) Based Change Detection Approach to Helicopter Diagnostics |
APR 2008 |
18 pages |
| Authors:
Kenneth Ranney; Hiralal Khatri; Jerry Silvious; Kwok Tom; Romeo del Rosario; ARMY RESEARCH LAB ADELPHI MD
|
| We extend results obtained for fault detection and present a procedure for calculating condition indicators that is tailored to detect a recently observed fault. We illustrate how it arises naturally from consideration of statistics commonly calculated as part of constant false alarm rate (CFAR) target detection algorithms. |
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| Extensible Systems Dynamics Framework |
APR 2008 |
22 pages |
| Authors:
Christopher Brooks; Edward A. Lee; CALIFORNIA UNIV REGENTS BERKELEY
|
| Modern defense strategy and execution has become more net-centric and distributed, allowing more information to be made available more rapidly. The warfighter must assemble decision-quality information from potentially inaccurate, or even conflicting, pieces of information collected from multiple sources. The Pedigree Management and Assessment Framework (PMAF) enables the publisher of information to record standard pedigree, such as information about the source, manner of collection, and the chain of modification of ... |
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| Dynamic Situation Assessment and Prediction (DSAP) Integration and Experimentation for C2 R&D |
APR 2008 |
50 pages |
| Authors:
Robert McGraw; RAM LABS INC SAN DIEGO CA
|
| The DSAP concept grew out of John R. Surdu's Simulation in Operations research project and prototype system (OpSim). There are two basic functions of the DSAP concept: (1) Dynamic Situation Awareness, and (2) Prediction. The overall concept involves the use of embedded simulation in an operational environment to support decision makers in the planning process. Providing this capability allows decision makers to use simulation to assist in planning operations, monitor ... |
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| List of U.S. Army Research Institute Research and Technical Publications for Public Release/Unlimited Distribution. Fiscal Year 2007 (October 1, 2006 to September 30, 2007) With Author Index and Report Titles and Subject Terms Index |
APR 2008 |
71 pages |
| Authors:
ARMY RESEARCH INST FOR THE BEHAVIORAL AND SOCIAL SCIENCES ARLINGTON VA
|
| ARI publishes lists of its technical and research publications as a convenient reference for qualified agencies and individuals and sponsors. This issue of the publication list describes reports approved for public release during the period October 1, 2006, to September 30, 2007. It contains the abstract of each publication and the bibliographic information needed to identify a publication. The abstracts have been written. as far as possible, to describe the ... |
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| A Streamer-Like Atmospheric Pressure Plasma Jet (Postprint) |
APR 2008 |
5 pages |
| Authors:
Brian L. Sands; Biswa N. Ganguly; Kunihide Tachibana; UES INC DAYTON OH
|
| The properties of an atmospheric pressure plasma jet (APPJ) are examined in a single-cell dielectric capillary configuration. In contrast to some other flow-driven APPJs, this stable, cold plasma jet is electrically driven, composed of rapidly propagating ionization fronts with speeds of the order of 107 sq cm. Using spatially and temporally resolved optical diagnostics, it is demonstrated that the plasma jet is initiated independent of the dielectric barrier discharge inside ... |
|
| Quantifying, Predicting, and Exploiting (QPE) Uncertainty in the Southern East China Sea: A Climatological and Observational Approach |
31 MAR 2008 |
|
| Authors:
G. Gawarkiewicz; WOODS HOLE OCEANOGRAPHIC INSTITUTION MA
|
 | In this project we used data from the national hydrographic database in Taiwan to create climatological fields over the outer shelf and upper continental slope northeast of Taiwan. These fields have been used in helping to plan the field work for the DRI. In addition, Gawarkiewicz served as lead scientist for the DRI and organized and led three international workshops focused on planning the integrated international and multi-disciplinary field work ... |
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| JP8 Induced Mutagenesis and Hormesis |
13 MAR 2008 |
11 pages |
| Authors:
Purushottam Kale; ALABAMA A AND M UNIV NORMAL
|
| In order to test the phenomenon of JP8 induced hormesis and mutagenesis in Drosophila, several experiments were performed using samples over 5000 individuals in each experiment. The JP8 doses were progressively decreased from 5 microliters to 0.5 microliters in 1000 milliliters of air. Exposures were for 12 hours and survival was counted after 10 days. At a dose of 5 microliters, the survival was 80% which increased (or lethality decreased) ... |
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| Enlargement Issues at NATO's Bucharest Summit |
12 MAR 2008 |
|
| Authors:
Paul Gallis; Paul Belkin; Carl Ek; Julie Kim; Jim Nichol; Steven Woehrel; LIBRARY OF CONGRESS WASHINGTON DC CONGRESSIONAL RESEARCH SERVICE
|
| NATO will hold a summit in Bucharest on April 2-4, 2008, and a principal issue will be the consideration of the candidacies for membership of Albania, Croatia, and the Former Yugoslav Republic of Macedonia (FYROM, or the Republic of Macedonia). These candidate states are small, with correspondingly small militaries, and their inclusion in the alliance cannot be considered strategic in a military sense. However, it is possible that they could ... |
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| Finite Element Analysis of Fluid-Structure Interaction in a Blast-Resistant Window System (PREPRINT) |
MAR 2008 |
51 pages |
| Authors:
Jae H. Chung; Gary R. Consolazio; Robert J. Dinan; Stephen A. Rinehart; FLORIDA UNIV GAINESVILLE DEPT OF CIVIL AND COASTAL ENGINEERING
|
| This paper describes the development of a finite element model capable of representing a blast-resistant flexible window (flex-window) system developed by the Air Force Research Laboratory, Airbase Technologies Division (AFRL/RXQ). Computational fluid-structure interaction finite element simulations are used to develop an improved understanding of the manner in which fluid phenomena, such as air compression and flow, affect the behavior of the flex-window system under blast loading. Compressible air flow interacting ... |
|
| Millimeter-Wave Propagation Measurement Through a Dust Tunnel |
MAR 2008 |
24 pages |
| Authors:
David Wikner; ARMY RESEARCH LAB ADELPHI MD SENSORS AND ELECTRON DEVICES DIRECTORATE
|
| A one-week experiment was conducted to determine the millimeter-wave transmission loss due to dust. Transmission data was collected at 35, 94, and 217 GHz through a recirculating dust tunnel. Dust clouds of various densities were measured during the experiment. The millimeter-wave measurements were performed using transmitting sources on one side of the dust tunnel and antenna/detectors on the other. The hardware was designed to minimize noise and post-detection voltage drift. ... |
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| Biomimetic Micro Air Vehicle Testing Development and Small Scale Flapping-Wing Analysis |
MAR 2008 |
114 pages |
| Authors:
Craig E. Svanberg; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH DEPT OF AERONAUTICS AND ASTRONAUTICS
|
| The purpose of this research was to develop testing methods capable of analyzing the performance of a miniature flapping-wing mechanism that can later be adapted for the development a biomimetic flapping-wing micro air vehicle (MAV). Three small scale flapping mechanisms capable of single plane flapping, flapping with active pitch control, and flapping/pitch with out-of-plane movement were designed using SolidWorks. The flapping-only model was fabricated on an Objet 3-dimensional printer and ... |
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| Advanced Transmission Electron Microscopy Characterization of Novel Thermoelectric Materials |
MAR 2008 |
16 pages |
| Authors:
Susanne Stemmer; John Bowers; CALIFORNIA UNIV REGENTS SANTA BARBARA OFFICE OF RESEARCH
|
| The report described our research activities focused on the characterization of new epitaxial thermoelectric materials that are comprised of semimetallic, epitaxial ErAs nanoparticles embedded in a semiconducting epitaxial In0.53Ga0.47As (InGaAs) matrix. The composites were grown by molecular beam epitaxy. We used advanced transmission electron microscopy (TEM) techniques to perform a detailed analysis of the shapes and distribution of random ErAs particles and the overall morphology of the composites. We show ... |
|
| Activated Carbon Fiber Cloth Adsorber |
MAR 2008 |
26 pages |
| Authors:
Ken Kessler; HUNTER MFG CO SOLON OH
|
| Regenerative filtration based upon activated carbon cloth (ACFC) and direct ohmic heating is being investigated for both environmental and military applications. Although these Electrothermal Swing Adsorption (ESA) systems have been demonstrated at the bench and pilot scale, further development is needed for scale up and manufacturability. This project consisted of the design, manufacture and testing of a tenth scale Vapor Phase Removal and Recovery System (VaPRRS) filter prototype. The adsorption ... |
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| Computational Study of Separation Control Using ZNMF Devices: Flow Physics and Scaling Laws |
26 FEB 2008 |
14 pages |
| Authors:
Rajat Mittal; GEORGE WASHINGTON UNIV WASHINGTON DC
|
| The primary objective of the proposed research was to gain a fundamental understanding of strategies, mechanisms, and scaling laws for successful control of separation using zern-net mass-flux (ZNMF) actuators. The key issue that was systematically studied was the optimal excitation frequencies in separated flows characterized by convective and/or global instabilities. The study was a complementary experimental/ numerical effort that capitalized on previous collaborations and was aimed at leveraging the respective ... |
|
| Internal Controls over Army Selective Reenlistment Bonuses |
13 FEB 2008 |
33 pages |
| Authors:
Paul J. Granetto; Patricia Marsh; Douglas P. Neville; Joseph A. Powell; Lusk Penn; Brett Ward; Donovan Quimby; Lisa Vega; Jason James; Henry Matthews; INSPECTOR GENERAL DEPT OF DEFENSE ARLINGTON VA
|
| The Reenlistment, Extension, Reclassification, and Reserve Component Transition System (RETAIN) is the Army's computerized retention system for enlisted personnel. It contains all the reenlistment data required to document the retention of Army Service members, including tracking selective reenlistment bonuses (SRBs) paid and data required to transition active Army Service members to the Army National Guard and U.S. Army Reserves. DFAS and the Army activated an adjustment to the SRB portion ... |
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| Military Retirement, Concurrent Receipt, and Related Major Legislative Issues |
12 FEB 2008 |
|
| Authors:
Charles A. Henning; LIBRARY OF CONGRESS WASHINGTON DC CONGRESSIONAL RESEARCH SERVICE
|
| The military retirement system includes benefits for retirement after an active or reserve military career, disability retirement, and survivor benefits for eligible survivors of deceased retirees. The change to the system that has generated the most recent legislative activity involves whether some or all military retirees should be allowed to receive both military retired pay and any VA disability compensation to which they are otherwise entitled; this is referred to ... |
|
| Mission Area Overview: Project Manager - Chemical Stockpile Elimination |
07 FEB 2008 |
3 pages |
| Authors:
ARMY CHEMICAL MATERIALS AGENCY ABERDEEN PROVING GROUND MD
|
| The Project Manager Chemical Stockpile Elimination (PM-CSE) PM-CSE is an acquisition PM responsible for the safe destruction of the nation's unitary chemical agents and weapons. The destruction technologies used by PM-CSE include incineration and neutralization. The PM-CSE is one mission area of the U.S. Army Chemical Materials Agency (CMA). CMA's mission is to protect, safely store and destroy the aging chemical weapons stockpile. The PM-CSE, headquartered at the Edgewood area ... |
|
| Hybrid Helmet Cure Cycle Optimization |
FEB 2008 |
17 pages |
| Authors:
David M. Spagnuolo; Eugene Napadensky; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE
|
| Some of the recent work involving the use of thermoplastic materials for combat helmets has shown significant weight savings and improved protection. Unfortunately, the change to thermoplastic materials brings with it some important concerns. First, the stiffness is compromised with these materials so a hybrid type of helmet (a thermoplastic shell with thermoset inner or outer skins) is needed to reduce the deflection properties. This brings us to the second ... |
|
| Characterization of Corrosion on Outdoor-Exposed Aluminum Metal-Matrix Composites as a Function of Reinforcement Specie and Volume Fraction |
FEB 2008 |
52 pages |
| Authors:
Ralph P. Adler; Daniel J. Snoha; George Hawthorn; Lloyd H. Hihara; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE
|
| The Hawaii Corrosion Laboratory and the U.S. Army Research Laboratory collaborated to prepare, environmentally expose for up to 2 years, and evaluate multivariant sets of metal matrix composites (MMCs). The experimental matrix involved variations in particulate volume-percent and particulate reinforcement specie (higher purity green and less-pure black silicon carbide, boron carbide, and alumina). The specific objective of this study was to determine, mainly using x-ray powder diffractometry, how observed gravimetric ... |
|
| Transportable Waste-to-Energy System (TWES) Energy Recovery From Bare Base Waste |
FEB 2008 |
18 pages |
| Authors:
Mikel L. Sawyer; APPLIED RESEARCH ASSOCIATES INC TYNDALL AFB FL
|
| The Air Force Research Laboratory, Airbase Technologies Division (AFRL/RXQ) is developing a Transportable Waste-to-Energy System (TWES) to produce electricity at domestic and deployed military bases. The project has two stages. Stage 1 is complete. AFRL built a Transportable Furnace System (TFS) that shreds and burns solid waste (wood, paper, plastic, etc.). No additional fuels are required to sustain combustion. It also burns waste oils and contaminated JP-8 or diesel. This ... |
|
| A Joined-Wing Flight Experiment |
FEB 2008 |
213 pages |
| Authors:
Maxwell Blair; Jason Robinson; William A. McClelland; Jason C. Bowman; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH AIR VEHICLES DIRECTORATE
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| This report summarizes several design and analysis studies surrounding the flight test of a 7% geometric scale of a notional high-altitude, long-endurance (HALE) variant that targeted the AFRL SensorCraft mission. Established procedures were modified to accommodate low-cost testing with giant-scale radio-controlled technology as an approach to reduce high risk associated with new technologies, such as the joined-wing concept. The flight test vehicle reported here was rigid. The second successful flight ... |
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| Coalition Airspace Management and Deconfliction |
JAN 2008 |
20 pages |
| Authors:
David Griffith; Geoffrey K. Wilson-Smith; Mark Ohmer; Michael Seifert; Jr. DiLego Francis; John Hitchings; Josh Sterling; Henry Simmons; AIR FORCE RESEARCH LAB ROME NY
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| The risk of fratricide is a constant problem in all military engagements, a problem that is exacerbated in coalition operations where military forces from many allied nations operate in close proximity. Despite considerable efforts to mitigate this risk friendly fire engagements between air and ground units resulted in 13 deaths during Operation Iraqi Freedom. These incidents resulted, in part, from poor situation awareness and failures in the air command and ... |
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| The Structure of Complex Problems |
JAN 2008 |
13 pages |
| Authors:
John B. Lee; Duncan J. Watts; COLUMBIA UNIV NEW YORK DEPT OF SOCIOLOGY
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| The design of collective problem solving experiments requires that experimenters be able to control for task difficulty and problem structure across a variety of potential experimental tasks. Controlling for these factors allows experimenters to isolate the effects of organizational and communication structure from the nature of the task, and allows for comparison between experimental results and real-world problem solving efforts. This report develops a model of problems that accounts for ... |
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