| Replicating Physiological Patterns of Activity with Prosthetic Stimulation |
Jul-2009 |
30 pages |
| Authors:
Shelley Fried; BOSTON VA RESEARCH INST MA
|
 | We want to develop more effective methods of neural stimulation in order to improve the clinical outcomes associated with retinal prosthetics. To accomplish this, we are investigating the mechanism(s) by which different types of retinal neurons respond to electric stimulation. Previous studies have shown that ganglion cells, the output cells of the retina, can be activated directly and exclusively with short duration stimulus pulses[1-4]. However, the site of spike initiation ... |
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| Terrain Mechanics and Modeling Research Program: Enhanced Vehicle Dynamics Module |
May-2009 |
139 pages |
| Authors:
Randolph A Jones; Daniel C Creighton; George B McKinley; Richard B Ahlvin; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS GEOTECHNICAL AND STRUCTURES LAB
|
| The vehicle dynamics module (VEHDYN 4.0) includes many enhancements to the previously documented and released VEHDYN II model and the internally developed, but not released, VEHDYN 3.0 model. The VEHDYN 3.0 model accepted the vehicle in a settled, or equilibrium, configuration instead of the zero-force configuration (the force acting on each suspension spring is assumed to be zero) required by VEHDYN II. VEHDYN 3.0 also included a special suspension and ... |
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| Centralized Cooperative Control for Route Surveillance With Constant Communication |
Mar-2009 |
126 pages |
| Authors:
Joseph D Rosal; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF ENGINEERING AND MANAGEMENT
|
| The route surveillance (RS) mission is a new application of unmanned aircraft systems (UASs) to meet the reconnaissance and surveillance needs of combatant commanders. This mission intends to field a four-vehicle UAS that can provide surveillance of convoy routes. This research focuses on developing a solution strategy based on the application of optimal control and cooperative control theory. The RS controller uses the UAS team size to divide the route ... |
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| Optimizing Uncertainty in Dempster-Shafer Detectors Fusing Multi-Sensor Data |
Mar-2009 |
18 pages |
| Authors:
Nasser M Nasrabadi; Kenneth I Ranney; ARMY RESEARCH LAB ADELPHI MD SENSORS AND ELECTRON DEVICES DIRECTORATE
|
| Fusion algorithms based on the Dempster-Shafer (DS) Theory of Evidence lack a universally standard method for automatically assigning probability mass to the don't know hypothesis for a particular input. For example, when fusing automatic target detection (ATD) algorithm outputs from multiple sensors, one must associate a measure of uncertainty with the output from the ATD algorithm of each sensor. We describe such a fusion algorithm, developed using the DS formalism, ... |
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| Using the Advanced Research Version of the Weather Research and Forecast Model in Support of ScanEagle Unmanned Aircraft System Test Flights |
Mar-2009 |
42 pages |
| Authors:
Robert Flanigan; Jeffrey E Passner; Robert E Jr; Dumais; Stephen Kirby; ARMY RESEARCH LAB WHITE SANDS MISSILE RANGE NM COMPUTATIONAL AND INFORMATION SCIENCE DIRECTORATE
|
| The U.S. Army Cold Regions Research and Engineering Laboratory (CRREL) supported unmanned aircraft flights in a specified airspace domain at Yuma Proving Ground (YPG) in November and December 2007. The Battlefield Environment Division of the Computational and Information Sciences Directorate (CISD), Army Research Laboratory (ARL), was asked to provide real-time meteorological modeling support and weather products such as low-level wind and turbulence forecasts at YPG to help determine areas and ... |
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| An Investigation Into the Feasibility of Using a Modern Gravity Gradient Instrument for Passive Aircraft Navigation and Terrain Avoidance |
Mar-2009 |
180 pages |
| Authors:
Marshall M Rogers; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF ENGINEERING AND MANAGEMENT
|
| Recently, Gravity Gradient Instruments (GGIs) - devices which measure the spatial derivatives of gravity, have improved remarkably due to development of accelerometer technologies. Specialized GGIs are currently flown on aircraft for geological purposes in the mining industries. As such, gravity gradient data is recorded in flight and detailed gradient maps are created after post mission processing. These maps, if stored in a database onboard an aircraft and combined with a ... |
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| Data Assimilation in the Littoral Zone. Part 1. Analysis of the Navy Coupled Ocean Data Assimilation System (NCODA) |
27-Feb-2009 |
108 pages |
| Authors:
Timothy R Keen; Richard Allard; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS OCEAN DYNAMICS AND PREDICTION BRANCH
|
| This report describes the detailed operation of the quality control component of the Navy Coupled Ocean Data Assimilation system for processing two- (2D) and three-dimensional (3D) fields. In addition to the conventional flow charts and tree diagrams used to describe sequential programs, several Unified Modeling Language (UML) diagrams are used to demonstrate the relationship between objects within the system. This Object Oriented (OO) analysis is intended to aid in future ... |
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| Intellectual Property Rights and International Trade |
05-Feb-2009 |
|
| Authors:
Shayerah Ilias; Ian F Fergusson; LIBRARY OF CONGRESS WASHINGTON DC CONGRESSIONAL RESEARCH SERVICE
|
 | This report provides background on intellectual property rights (IPR) and discusses the role of U.S. international trade policy in enhancing IPR protection and enforcement abroad. IPR are legal rights granted by governments to encourage innovation and creative output by ensuring that creators reap the benefits of their inventions or works and they may take the form of patents, trade secrets, copyrights, trademarks, or geographical indications. U.S. industries that rely on ... |
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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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| MissileLab User's Guide |
Feb-2009 |
84 pages |
| Authors:
Lamar M Auman; Kristina Kirby-Brown; ARMY AVIATION AND MISSILE RESEARCH DEVELOPMENT ENG CTR REDSTONE ARSENAL AL SYSTEM SIMULATION AND DEVELOPMENT DIRECTORATE
|
| MissileLab is a Microsoft Window based, Graphical User Interface (GUI) written in Visual Basic, that assist the user in running several Missile Aerodynamic Prediction codes. MissileLab allow the aerodynamic to input one set of geometry and atmospheric conditions and then run several aerodynamic prediction codes with the click of a button. MissileLab creates input files and for and executes Missile DATCOM, AeroPrediction Code (AP98, AP02, and AP05), NEAR MISL3, MISDL ... |
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| Steering a Time Scale |
01-Dec-2008 |
15 pages |
| Authors:
Judah Levine; NATIONAL INST OF STANDARDS AND TECHNOLOGY BOULDER CO TIME AND FREQUENCY DIV
|
| A time scale is a procedure for combining the data from an ensemble of clocks or frequency standards. The input data to the ensemble algorithm are generally the time (or frequency) differences between each of the members and the reference device for the system. Therefore, the overall time and frequency of the ensemble are free parameters and must be continuously adjusted using external data and a steering algorithm. In addition, ... |
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| Gestural Communication With Accelerometer-Based Input Devices and Tactile Displays |
Dec-2008 |
8 pages |
| Authors:
Paul D Varcholik; James L Merlo; UNIVERSITY OF CENTRAL FLORIDA ORLANDO INST FOR SIMULATION AND TRAINING
|
| In this work, we introduce a communication system for common military hand and arm gestures which does not require a visual connection between the transmitter and receivers. Specifically, we present a computer mediated gesture recognition system that employs a wireless, accelerometer-based input device for collecting and classifying one- and two-hand and arm gestures. This system delivers message output through an audible channel and through a tactile display. The tactile display ... |
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| A Metadata Calculus for Securing Information Flows |
Dec-2008 |
8 pages |
| Authors:
Mudhakar Srivatsa; Dakshi Agrawal; Shane Balfe; IBM THOMAS J WATSON RESEARCH CENTER YORKTOWN HEIGHTS NY
|
| Traditional approaches to information sharing use a highly conservative approach to deduce the metadata for an output object x derived from input objects y(sub 1), y(sub 2), ... , y(sub n) [e.g.: maximum over the security labels of all input objects]. Such approaches does not account for functions that explicitly down- grade the value of an object. Consequently, the security labels in traditional approaches tend to monotonically increase as newer ... |
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| Nanothermite-Based Microsystem for Drug Delivery and Cell Transfection |
Dec-2008 |
9 pages |
| Authors:
S Apperson; R Thiruvengadathan; A Bezmelnitsyn; K Gangopadhyay; S Gangopadhyay; L Polo-Parada; MISSOURI UNIV-COLUMBIA DEPT OF ELECTRICAL ENGINEERING
|
| This paper describes a new system for pressure-induced cell transfection. The system generates pressure pulses from a microchip that contains a small quantity of nanothermite material and an electrical igniter. The pressure output from the nanothermite reaction is coupled to the biological target through a PDMS membrane and a tube filled with gelatin. The system generates pressure pulses in the range of 10-40MPa. It has been used to transfect primary ... |
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| Explosive Pulsed Power: An Enabling Technology |
Dec-2008 |
9 pages |
| Authors:
L L Altgilbers; ARMY SPACE AND MISSILE DEFENSE COMMAND/ARMY FORCES STRATEGIC COMMAND HUNTSVILLE AL
|
| The modern army is currently striving to make their weapon systems smaller, lighter, and cheaper and at the same time more powerful. One of the enabling technologies that permit this is Explosive Pulsed Power (EPP). Explosive Pulsed Power consists of those devices that convert the chemical energy in explosives into electrical energy. In 2004, a series of Army Small Business Innovative Research (SBIR) Programs were initiated to develop several types ... |
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| Fabrication and Characterization of Nanoporous Energetic Silicon |
Dec-2008 |
7 pages |
| Authors:
W Churaman; L Currano; M Dubey; C Becker; ARMY RESEARCH LAB ADELPHI MD
|
| Arising as a new class of energetic material, nanoporous energetic silicon holds great potential for applications such as fuzing and thrust generation, which require large power output. In this paper we address fabrication and material characterization as well as monolithic integration of a hotwire initiator and packaging; the first steps toward a fully integrated MEMS/IC/energetic material system. |
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| Quantum Dot / Optical Protein Bio-Nano Hybrid System for Biosensing Applications |
Dec-2008 |
6 pages |
| Authors:
M Griep; D Lueking; R Mackay; G Mallick; S Karna; C Friedrich; MICHIGAN TECHNOLOGICAL UNIV HOUGHTON DEPT OF MECHANICAL ENGINEERING AND ENGINEERING MECHANICS
|
| The unique energy transfer interaction between the optical protein bacteriorhodopsin (bR) and CdSe/ZnS quantum dots (QDs) provides a potential modulation mechanism for bio-nano electronic application. We have utilized ionic-self assembled monolayer (I-SAM) techniques to create a novel alternating monolayer system of QDs and bR on a conductive ITO substrate. Results demonstrate the ability to efficiently create bR/QD multilayer films along with the ability to control bR/QD spacing on the nanometer ... |
|
| ONR D&I Electronics Technology Programs |
01-Sep-2008 |
7 pages |
| Authors:
Jeong Moon; HRL LABS LLC MALIBU CA
|
| Program Status: One of the D&I program goals is to develop greatly improved field-plated MMW GaN HEMT devices with high ft/fmax, which will improve gain/PAE and output power of GaN HEMT MMIC PAs simultaneously. The 6-wafer MMW GaN MMIC lot is competed with the front-side processing and waiting for the back-side processing. |
|
| Design and Implementation of a Motor Incremental Shaft Encoder |
01-Sep-2008 |
119 pages |
| Authors:
La; Andrew M Valley; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The Department of Electrical and Computer Engineering at the Naval Postgraduate School continuously develops new design applications and searches for new ways to arm the students with the tools necessary to gain a greater understanding of advanced motor applications. One such tool is the Student Design Center (SDC). The SDC utilizes Field Programmable Gate Array (FPGA) technology for digital control of motor applications. One of the key factors in motor ... |
|
| Organizational Analysis of the United States Army Contracting Command-Kuwait |
01-Sep-2008 |
105 pages |
| Authors:
Kristine R Orr; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| This study of the U.S. Army Contracting Command - Kuwait (USACC-KU) used an organizational systems framework to analyze factors related to strategy structure, processes and results experienced at USACC-KU during 2006-2008. The researcher's experience at the command coupled with survey data from employees and mid and senior level managers was used to analyze the organization as a system. Conclusions and recommendations regarding the assessment include: 1) Key variables appeared to ... |
|
| A Wide Area Bipolar Cascade Resonant Cavity Light Emitting Diode for a Hybrid Range-Intensity Sensor |
19 JUN 2008 |
195 pages |
| Authors:
Reginald J. Turner; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
|
| This dissertation focused on the development of an illuminator for the HRIS. This illuminator enables faster image rendering and reduces the potential of errors in return signal data, that could be generated from extremely rough terrain. Four major achievements resulted from this work, which advance the field of 3-D image acquisition. The first is that the TJ is an effective current spreading layer for LEDs with mesa width up to ... |
|
| Total Life Cycle Management - Assessment Tool: An Exploratory Analysis |
01-Jun-2008 |
69 pages |
| Authors:
Brad Young; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| It is essential for the Marine Corps to ensure the successful supply, movement and maintenance of an armed force in peacetime and combat. Integral to an effective, long-term logistics plan is the ability to accurately forecast future requirements to sustain materiel readiness. Total Life Cycle Management Assessment Tool (TLCM-AT) is a simulation tool combining operations, maintenance, and logistics. This exploratory analysis gives insight into the factors used by TLCM-AT beyond ... |
|
| Real-Time Terahertz Imaging Using a Quantum Cascade Laser and Uncooled Microbolometer Focal Plane Array |
01-Jun-2008 |
101 pages |
| Authors:
Barry N Behnken; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Real-time imaging in the terahertz (THz) spectral range was achieved using an uncooled, 160 120 pixel infrared microbolometer camera and a milliwatt-scale quantum cascade laser (QCL). By replacing the camera's original focusing optics with a Tsurupica-based lens and minimizing diffraction effects incurred by the QCL output beam, an imaging scheme was developed in which the camera's focal plane array successfully detected wavelengths that are more than an order of magnitude ... |
|
| Multiple-User Quantum Information Theory for Optical Communication Channels |
Jun-2008 |
240 pages |
| Authors:
Saikat Guha; MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE
|
| Research has established capacity theorems for point-to-point bosonic channels with additive thermal noise, under the presumption of a conjecture on the minimum output von Neumann entropy. In the first part of this thesis, we evaluate the optimum capacity for free-space line-of-sight optical communication using Gaussian-attenuation apertures. Optimal power allocation across all the spatio-temporal modes is studied, in both the far-field and near-field propagation regimes. We establish the gap between ultimate ... |
|
| Initial Test Bed for Very High Efficiency Solar Cells |
May-2008 |
8 pages |
| Authors:
Keith Goossen; Keith Emergy; Allen Gray; Myles Steiner; Mark Wanlass; Dan Laubacher; Doug Kirkpatrick; Paola Murcia; Nick Waite; Xiaoting Wang; Allen Barnett; Fouad Kiamilev; Jeff Gray; Christiana Honsberg; Paul Sharps; Richard Schwartz; Larry Kazmerski; DELAWARE UNIV NEWARK DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
| Very High Efficiency Solar Cell (VHESC) program is developing integrated optical system-photovoltaic modules for portable applications that operate at greater than 50 percent efficiency. We are integrating the optical design with the solar cell design, and we have entered previously unoccupied design space. A test bed for rapid development and verification of performance of subsystems is also being developed. The results and analysis of the first complete integrated optics and ... |
|
| Empirical Mode Decomposition Based Features for Diagnosis and Prognostics of Systems |
01-Apr-2008 |
30 pages |
| Authors:
Kenneth Ranney; Hiralal Khatri; Kwok del Tom; Romeo Rosario; ARMY RESEARCH LAB ADELPHI MD SENSORS AND ELECTRON DEVICES DIRECTORATE
|
| We present a new procedure to generate additional features for system diagnosis. The procedure is based on empirical mode decomposition of measured signals obtained by monitoring the relevant state of a system. This procedure is different from the existing procedures for defining features, which are generally obtained using the statistics of the measured signal, the matched filter outputs, and the wavelet decomposition of measured signals. Features derived by this new ... |
|
| Energy Losses in Simulated Relativistic Michigan A6 Magnetron with Shaped Cathode |
Apr-2008 |
2 pages |
| Authors:
Peter Mardahl; AIR FORCE RESEARCH LAB KIRTLAND AFB NM DIRECTED ENERGY DIRECTORATE
|
| Recently there has been much research interest in improving magnetron performance by employing various priming techniques, such as shaped cathodes and nonuniform magnetic fields. These priming techniques have been successfully applied to reduce magnetron noise and improve mode-locking and efficiency. Inserting a shaped cathode into the simulated Michigan magnetron yields a maximum efficiency (the radiofrequency (RF) output power for a cycle divided by the current times voltage input for that ... |
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| The Implementation of a Python Class for Structuring Network Data Collected in a Test Bed |
APR 2008 |
30 pages |
| Authors:
Binh Q. Nguyen; ARMY RESEARCH LAB ADELPHI MD
|
| This report documents an internally developed Python class that takes in a set of data files and organizes them into effective data structures that are suitable for the subsequent extraction, processing, and analysis. The report includes usage examples by describing Python snippets that perform statistical calculations and that transform the data into comma-separated values. Sample input and output data are appended to the report. |
|
| Adapting the Dynamic Allocation of Fires and Sensors (DAFS) Model for Use in Maritime Combat Analysis |
MAR 2008 |
143 pages |
| Authors:
Scott B. Hattaway; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The U.S. Navy employs several models of maritime combat to provide analytical rigor to force structure and weapon system procurement policies. All of the models currently used are high resolution and deterministic, providing very detailed results but without any measurement of variance or any statistical manner of evaluating risk. This thesis provides the initial groundwork for a low resolution stochastic maritime combat model that may provide an initial evaluation and ... |
|
| Extensible 3D (X3D) Graphics Clouds for Geographic Information Systems |
MAR 2008 |
101 pages |
| Authors:
Darren W. Murphy; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| This research evaluates the production of three dimensional (3D) clouds for geospatial viewing programs such as Google Earth, NASA World Wind, and X3D Earth. This thesis took advantage of iso-standard X3D graphics and X3D Edit in conjunction with manually produced image textures to represent 3D clouds. While a 3D geospatial viewing might never completely characterize the current state of the atmosphere, a sufficiently realistic virtual 3D rendering can be created ... |
|
| User's Guide to STAT The SHADWELL Test Analysis Tool (Version 2.0) |
29 FEB 2008 |
34 pages |
| Authors:
John B. Hoover; NAVY TECHNOLOGY CENTER FOR SAFETY AND SURVIVABILITY WASHINGTON DC
|
| The SHADWELL Test Analysis Tool, orginally developed to aid in the analysis of large-scale fire test data, has been updated. The new version removes the dependency on proprietary, third-party software and adds support for several new data input formats, including SHADWELL LabVIEW test data and the Fire and Smoke Simulator (FSSIM) fire model output. Methods are provided for definition of data channels, selection of data based on instrument type and ... |
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| Sensitivity Analysis of Algan/GAN High Electron Mobility Transistors to Process Variation |
FEB 2008 |
130 pages |
| Authors:
Adam J. Liddle; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF ENGINEERING AND MANAGEMENT
|
| A sensitivity analysis of AlGaN/GaN HEMT performance on material and process variations was performed. Aluminum mole fraction, barrier thickness, and gate length were varied + or - 5% over nominal values to determine how sensitive simulated device performance was to changes in these 3 parameters. Simulated data was generated with the Synopsys TCAD software suite using a physics-based HEMT model. To validate model performance, simulated data was correlated with experimental ... |
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| Comparison of Outputs for Variable Combinations Used in Cluster Analysis on Polarmetric Imagery |
01-Jan-2008 |
20 pages |
| Authors:
Melinda Petre; ARMY RESEARCH LAB ADELPHI MD COMPUTATIONAL AND INFORMATION SCIENCES DIRECTORATE
|
| Polarimetric imaging provides potential for highlighting man-made objects amongst complex natural backgrounds because man-made objects emit radiation with a higher degree of polarization than natural environments. More specifically, two techniques, Cluster Analysis (CA) and Principle Component Analysis (PCA) can be combined to process Stoke s imagery by distinguishing between pixels, and producing groups of pixels with similar characteristics. In this study, an algorithm which performs PCA and CA on three ... |
|
| Continuous wave, 30 W Laser-Diode Bar with 10 GHz Linewidth for Rb Laser Pumping |
01-Jan-2008 |
4 pages |
| Authors:
A Gourevitch; G Venus; V Smirnov; D A Hostutler; L Glebov; UNIVERSITY OF CENTRAL FLORIDA ORLANDO SCHOOL OF OPTICS/CREOL
|
| A laser-diode bar incorporated into an external cavity with a volume Bragg mirror produced 30W of cw output power within a 20 pm 10 GHz spectral linewidth (FWHM) centered at 780 nm. The device output power exceeded 90% of that for the free-running laser-diode bar. The emission wavelength was tuned over a 400 pm range without broadening laser spectrum width. Absorption of 90% of the laser radiation by a 25 ... |
|
| Spring 2008 Industry Study. Manufacturing Industry |
01-Jan-2008 |
33 pages |
| Authors:
INDUSTRIAL COLL OF THE ARMED FORCES WASHINGTON DC
|
| America remains the world's leader in manufacturing, both in output and in productivity. In fact, the U.S. accounts for more than a quarter of all global output. That said, there are serious fault lines running through the sector that, if left unaddressed, could erode America's current dominance and harm the nation's long-term economic health. Manufacturing is also critical to our national security, as the relative health of our defense industrial ... |
|
| Towards Analytical Convergence Analysis of Proportionate-Type NLMS Algorithms |
Jan-2008 |
5 pages |
| Authors:
Kevin T Wagner; Milos I Doroslovacki; NAVAL RESEARCH LAB WASHINGTON DC RADAR DIV
|
| To date no theoretical results have been developed to predict the performance of the proportionate normalized least mean square (PNLMS) algorithm or any of its cousin algorithms such as the micrometer-law PNLMS (MPNLMS), and the epsilon-law PNLMS (EPNLMS). In this paper we develop an analytic approach to predicting the performance of the simplified PNLMS algorithm which is closely related to the PNLMS algorithm. In particular we demonstrate the ability to ... |
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| The Impact of Mergers Inefficiency: A Case Study of Banking Status |
DEC 2007 |
101 pages |
| Authors:
Shelia T. Asbury; Augusto Rodriquez-Aponte; Gene T. Smith; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The purpose of this project is to examine whether the wave of bank mergers in Europe (1990s to the present) has led to improvements in bank profitability, bank efficiency, and benefits to consumers. We identify trends and average in financial data for various banks pre and post merger, and situate our results within the context of developments within the various countries. There are many reasons for bank mergers: economy of ... |
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| Prioritizing Efforts to Improve Foreign Public Opinion of America: Applying a Business Model to Discover and Create Customer Value |
DEC 2007 |
119 pages |
| Authors:
Anthony J. Sampson; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The U.S. National Security Strategy contains objectives that involve winning the battle for the hearts and minds of the foreign public. A study of literature and polling data reveals worldwide resentment toward America, indicating that America may be losing this battle. Given the reality of fiscal and resource constraints, America could not possibly address all of the concerns of the foreign public; rather, America must focus its efforts on the ... |
|
| Evaluation and Application of the Weather Research and Forecast Model |
DEC 2007 |
28 pages |
| Authors:
Jeffrey E. Passner; ARMY RESEARCH LAB WHITE SANDS MISSILE RANGE NM
|
| The Advanced Research version of the Weather Research and Forecasting model (WRF-ARM) was studied by the U.S. Army Research Laboratory (ARL) to determine how accurate and robust the model is under a variety of meteorological conditions, with an emphasis on fine resolution, short-range forecasts in complex terrain. This model study was done in support of the short-range Army tactical analysis/nowcasting system called the Weather Running Estimate-Nowcast (WRE-N) as well as ... |
|
| Molten Carbonate Fuel Cell Operation With Dual Fuel Flexibility |
OCT 2007 |
36 pages |
| Authors:
JOSEPH DALY; George Steinfeld; David K. Moyer; Franklin H. Holcomb; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING RESEARCH LAB
|
| The ability to operate highly-efiicient, pollution-free, distributed-generation power plants on either natural gas or HD-5 grade propane is of interest to the U.S. Army and the U.S. Department of Homeland Security as secure power for critical power operations. To address this interest, Concurrent Technologies Corporation (CTC) teamed with FuelCell Energy (FCE) to test an internally reforming 250 kW carbonate direct fuel cell using HD-5 propane. This fuel cell power plant, ... |
|
| Neuro-Cognitive Assessment, Symptoms of Attention Deficit and Hyperactivity Disorder, and Soldier Performance during 68W Advanced Individual Training |
OCT 2007 |
47 pages |
| Authors:
Valerie J. Rice; Diane Marra; Jenny Butler; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD HUMAN RESEARCH AND ENGINEERING DIRECTORATE
|
| This study is one in a series of studies examining factors that impact Soldier performance during Advanced Initial Training (AIT). This study examines the relationships between a) Soldier performance using the Interactive Metronome1 (IM), a new interactive computer technology used to assess neuro-cognitive function in terms of auditory and visual input with psychomotor timing and rhythm output, b) symptoms of attention deficit and hyperactivity disorder (SoAD/HD), and c) academic and ... |
|
| Development of THz Fiber Lasers |
12-Sep-2007 |
8 pages |
| Authors:
Xi-Cheng Zhang; Albert Redo-Sanchez; Gernot S Pomrenke; RENSSELAER POLYTECHNIC INST TROY NY
|
| There is no Current commercially available THz fiber Laser on the market, and there is no any report successful demonstration of THz fiber lasers in literatures. Our DURIP project is to develop a THz fiber Laser on a novel photonic crystal fiber technique. The THz fiber laser has several important characteristics; sm portability, room temperature operation, and high output power. ALL provide advantages over current THz La a new high-power, ... |
|
| Availability of Patch Calculator, an ArcGIS v.9 Tool for the Analysis of Landscape Patches |
SEP 2007 |
4 pages |
| Authors:
Jeff P. Lin; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS
|
| This technical note announces the availability of Patch Calculator, a tool developed by the U.S. Army Engineer Research and Development Center (ERDC) for ESRI's ArcGIS Desktop, version 9 software. Patch Calculator is run through the ArcToolbox application, and can be used to calculate several patch and landscape-related metrics, with the results output as patches and/or a study area (e.g., subwatersheds) shapefile. The results can then be used to support various ... |
|
| Retrieval Performance Prediction and Document Quality |
SEP 2007 |
150 pages |
| Authors:
Yun Zhou; MASSACHUSETTS UNIV AMHERST DEPT OF COMPUTER SCIENCE
|
| The ability to predict retrieval performance has potential applications in many important IR (Information Retrieval) areas. In this thesis, we study the problem of predicting retrieval quality at the granularity of both the retrieved document set as a whole and individual retrieved documents. At the level of ranked lists of documents, we propose several novel prediction models that capture different aspects of the retrieval process that have a major impact ... |
|
| Adaptive Transceivers for Wireless Spectrum Networks |
21 AUG 2007 |
18 pages |
| Authors:
Michael L. Honig; NORTHWESTERN UNIV EVANSTON IL OFFICE OF RESEARCH SPONSORED PROJECTS
|
| This project has been concerned with joint transmitter-receiver adaptation in a distributed, peer-to-peer wireless network. Parameters that can be adapted at the transmitter include rate, power, and signatures in space-time-frequency. In this report we summarize our work on the following topics: (1) Limited feedback schemes for optimizing spatial signatures for Multi-Input Multi-Output (MIMO) channels, and power and rates for multi-carrier transmission; (2) Optimization of training overhead for MIMO block fading ... |
|
| Characterization of Particle Output From a Percussion Primer |
AUG 2007 |
24 pages |
| Authors:
Lang-Mann Chang; Anthony W. Williams; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE
|
| Measurements were made for the percentage of combustion products in condensed phases from a no. 41 percussion primer, and the influence of the condensed phases on the charge ignition in the 5.56-mm ammunition was characterized. The studies were carried out in three phases using three different test fixtures. Results showed 34% of the combustion products in condensed phases, including liquid and solid particles. With the residue remaining in the primer ... |
|
| Design of Gages for Direct Skin Friction Measurements in Complex Turbulent Flows with Shock Impingement Compensation |
07 JUN 2007 |
133 pages |
| Authors:
August J. Rolling; VIRGINIA POLYTECHNIC INST AND STATE UNIV BLACKSBURG DEPT OF AEROSPACE AND OCEAN ENGINEERING
|
| This research produced a new class of skin friction gages that measures wall shear even in shock environments. One test specimen separately measured wall shear and variable-pressure induced moment. Through the investigation of available computational modeling methods, techniques for accurately predicting gage physical responses were developed. The culmination of these model combinations was a design optimization procedure. This procedure was applied to three disparate test conditions: 1) short duration, high-enthalpy ... |
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| JITDA Arena Intra-theater Simulation |
01-Jun-2007 |
25 pages |
| Authors:
Steve Sommer; TRANSPORTATION COMMAND SCOTT AFB IL
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| Agenda: *Problem Statement; *Scope; *Model Overview; *Inputs; *Processing Logic; *Outputs. |
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| Improvement of Electromagnetic Code for Phased Array Antenna Design |
01-Jun-2007 |
14 pages |
| Authors:
Henrik Holter; ROYAL INST OF TECH STOCKHOLM (SWEDEN)
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| This is a final report for EOARD grant FA8655-07-1-3059 entitled Improvement of electromagnetic code for phased array antenna design . An existing time domain code for electromagnetic design and analysis of phased array antennas and other periodic structures such as frequency selective surfaces and meta-materials has been improved in several ways. The code which is named PBFDTD (Periodic Boundary FDTD) now handles magnetic materials (lossy and loss-free). Frequency domain surface ... |
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| Quantum Computing in Diamond |
28 MAY 2007 |
13 pages |
| Authors:
Steven Prawer; MELBOURNE UNIV VICTORIA (AUSTRALIA)
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| The aim of this proposal is to demonstrate the key elements needed to construct a logical qubit in diamond by exploiting the remarkable quantum properties of the nitrogen-vacancy (NV) optical centre. Specifically, the focus of the work was to address the materials and fabrication issues. We have demonstrated (i) that individual NV qubits can be fabricated by ion implantation with long coherence times (>350 microseconds at room temperature), (ii) electrical ... |
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