| GigE Advanced Imaging Sensor |
23-Nov-2009 |
9 pages |
| Authors:
Lon van Sunshine; Peter Ham; BAE SYSTEMS NASHUA NH
|
 | An advanced sensor was developed and tested under this effort. This sensor uses an EMCCD with an active focal plane of 658 by 496 pixels, in conjunction with a controllable iris and wide field of view lens to provide situation awareness over full daylight to extreme dark conditions. The interface to the sensor is over GigE, allowing high data rate signal transmission. Intensive mechanical design was applied to advance the ... |
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| Understanding Demonstration-based Training: A Definition, Conceptual Framework, and Some Initial Guidelines |
Nov-2009 |
31 pages |
| Authors:
Randy Jensen; Sowmya Ramachandran; Eduardo Salas; Dan Fu; Elizabeth Hinkelman; Michael A Rosen; Davin Pavlas; Donald R Lampton; STOTTLER HENKE ASSOCIATES INC SAN MATEO CA
|
| This research was conducted as part of a Phase I Army Small Business Innovative Research (SBIR) contract monitored by the United States Army Research Institute for the Behavioral and Social Sciences (ARI). The overall goal of the SBIR topic is to develop a comprehensive system for designing, producing, distributing, and using training demonstrations. This report provides an initial formalism for demonstration-based learning, to be incorporated into the design and development ... |
|
| WARFIGHTER SUPPORT: Independent Expert Assessment of Army Body Armor Test Results and Procedures Needed Before Fielding |
Oct-2009 |
111 pages |
| Authors:
GOVERNMENT ACCOUNTABILITY OFFICE WASHINGTON DC
|
| The Army has issued soldiers in Iraq and Afghanistan personal body armor, comprising an outer protective vest and ceramic plate inserts. GAO observed Preliminary Design Model testing of new plate designs, which resulted in the Army?s awarding contracts in September 2008 valued at a total of over $8 billion to vendors of the designs that passed that testing. Between November and December 2008, the Army conducted further testing, called First ... |
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| Scalable Emulation of TinyOS Applications in Heterogeneous Network Scenarios |
Oct-2009 |
11 pages |
| Authors:
Rajive Bagrodia; Yi-Tao Wang; CALIFORNIA UNIV LOS ANGELES DEPT OF COMPUTER SCIENCE
|
| Simulating the behavior of sensor applications in a heterogeneous network or under diverse environmental conditions is particularly challenging. In this paper, we present the design and implementation of TiQy, a scalable framework that allows unmodified TinyOS applications to be evaluated in a diverse set of operating conditions, including heterogeneous networks. We validate TiQ against MoteLab, a physical sensor network testbed, and show that TiQ can predict the behavior of the ... |
|
| Rotorcraft Crash Mishap Analysis |
30-Sep-2009 |
390 pages |
| Authors:
Lance C Labun; SAFE INC TEMPE AZ
|
| The method and results of a study using rotary wing crash data from the Army Aviation Mishap database are reported. The study was conducted to support the Full Spectrum Crashworthiness initiative with the objective of providing a current basis for revising the crashworthiness design criteria. For this study, crashes were divided into two types: directly to terrain, and those following an inflight obstacle strike. Thirty percent of the crashes studied ... |
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| Comparison of the Direct Scoring Method and Multi-Criteria Decision Analysis for Dredged Material Management Decision Making |
Sep-2009 |
14 pages |
| Authors:
Jongbum Kim; Burton C Suedel; Cynthia J Banks; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS ENVIRONMENTAL LAB
|
| Decision making for complex environmental problems such as dredged material management can become overwhelming, especially when dealing with multiple conflicting objectives, alternatives, and stakeholders. A process is needed to organize the massive amount of information into a usable form. The purpose of this document is to show the disadvantages of using the direct scoring method for dredged material management decision making as it relates to dredged material placement and its ... |
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| Adaptive Design for Sensitivity Experiments and Related Problems |
07-Aug-2009 |
3 pages |
| Authors:
C F Wu; Roshan J Vengazhiyil; GEORGIA TECH RESEARCH CORP ATLANTA
|
| The main goal of this research is to develop novel methodologies in the design and modeling of sensitivity testing and related experiments, which are commonly encountered in military applications. The research has progressed well with four papers accepted and scheduled to appear, one tentatively accepted and one under review. Paper 1 proposes a new sequential procedure for root finding in highly nonlinear situations. Paper 2 addresses the modeling and data ... |
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| Spray Nonuniformities in Gas-Centered Swirl-Coaxial Injectors (Preprint) |
Jul-2009 |
7 pages |
| Authors:
Malissa D Lightfoot; Stephen A Danczyk; AIR FORCE RESEARCH LAB EDWARDS AFB CA PROPULSION DIRECTORATE
|
| Experimental studies of gas-centered swirl-coaxial (GCSC) injectors have revealed five basic types of nonuniformities in the spray. These nonuniformities can be classified as either affecting the centerline of the spray, with respect to the centerline of the injector, or affecting the temporal mass-distribution. The details of these behaviors are discussed as are possible driving factors and design criteria for avoidance. In general, high momentum flux operations are suggested for minimizing ... |
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| Air Force Flight Test Center Engineering Logistics Plan Preparation Guide. Technical Information Handbook |
May-2009 |
97 pages |
| Authors:
Mark T Packer; TEST WING ( 412TH) EDWARDS AFB CA
|
| The Air Force Flight Test Center Engineering Logistics Plan Preparation Guide provides established guidelines to assist authors in preparing technically accurate and clearly written transition and turnover documents for acquisition projects. The guide format allows the plan author the flexibility to tailor the engineering logistics plan for various reasons, such as project size and type of system under development. The goal is to turn over a fully functional and documented ... |
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| A Satellite Architecture for Operationally Responsive Space |
Mar-2009 |
67 pages |
| Authors:
Jeremy S Geib; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Operationally Responsive Space (ORS) is focused on putting satellites in orbit in significantly less time than it currently takes. ORS is based on responding to an operational need quickly, but it should not be thought of as a new way to place national systems in orbit. Operational needs likely result from a need to augment an existing system or to replace a portion of an existing system. Whether a satellite ... |
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| Wargaming Strategic Linkage |
Jan-2009 |
|
| Authors:
Peter P Perla; Michael C Markowitz; CENTER FOR NAVAL ANALYSES ALEXANDRIA VA
|
 | The War Gaming Department (WGD) of the Naval War College (NWC) asked CNA to identify key game-design issues and to develop recommendations for more effectively representing the linkage between the strategic, operational/strategic, and operational levels of war, especially as applied to future Navy Title X Global War Games (GWG). We researched existing wargame systems and interviewed leading wargaming practitioners, both in government and in industry, to learn how others have ... |
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| Assessing the Requirement for Operational Design in the Face of Nonlinearity |
Jan-2009 |
31 pages |
| Authors:
Bradford W Tippett; MARINE CORPS COMBAT DEVELOPMENT COMMAND QUANTICO VA
|
| Adoption of operational design by the U.S. military will provide an approach to. functioning effectively within a complex environment in the near-term, while serving as a catalyst for a more comprehensive understanding of systems thinking in the long-term. Complexity is not a new phenomenon. Throughout time people have wrestled with complex problems and situations and have met with varying levels of success in their achievement of an acceptable solution. The ... |
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| Designing Decision Support Systems to Help Avoid Biases & Make Robust Decisions, With Examples From Army Planning |
Dec-2008 |
9 pages |
| Authors:
B Chandrasekaran; OHIO STATE UNIV COLUMBUS DEPT OF COMPUTER AND INFORMATION SCIENCE
|
| This paper is concerned with two sets of issues related to optimality in planning. The first is a proposal that design of decision support systems (DSS's) for planning should aim to support the planner in generating a plan that is robust, i.e., has satisfactory performance even when reality differs from assumptions. Such a plan would sacrifice optimality when reality is as assumed for reasonable performance over a larger range of ... |
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| Pressurized Structure Technology for UAVS |
Dec-2008 |
10 pages |
| Authors:
H Edge; M Nixon; A Janas; W Ross; J Collins; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD VEHICLE TECHNOLOGY DIRECTORATE
|
| There is a critical need to improve the performance and utility of unmanned aerial vehicles (UAVs). Several areas of UAV performance need to be improved for the next generation of UAVS to be used successfully in expanded future combat roles. For example current time aloft is only on the order of an hour or two for electric-powered UAVs. The current generation of UAVs lacks vertical takeoff and landing (VTOL) capability ... |
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| Computational Design of Biomimetic Gels With Properties of Human Tissues |
Dec-2008 |
9 pages |
| Authors:
J Andzelm; Y Sliozberg; J K Brennan; M VanLandingham; V Pryamitsyn; V Ganesan; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD
|
| The effective design of body armor requires the use of biomimicking materials that accurately and robustly reproduce the characteristic mechanical behavior of human tissues. The mechanical performance of the soft tissues is determined by their viscoelastic properties and for this reason the optimal soft tissue surrogate must viscoelastically mimic the original tissue. One traditional tissue surrogate material is a water-based gelatin gel that has poor environmental stability and limited tailorability. ... |
|
| Simulation and Analysis Toolset for an Industry Standard Embedded Systems Specification Language |
Dec-2008 |
15 pages |
| Authors:
Oleg Sokolsky; Duncan Clarke; FREMONT ASSOCIATES LLC CAMDEN SC
|
| The Architecture Analysis and Design Language (AADL) is an SAE standard language for describing the software and hardware architecture of performance-critical real-time systems. In addition, the AADL standard allows the definition of annexes, i.e., formal extensions to the standard language to enhance the design specifications of hardware or software components. Our work has leveraged the AADL language and tool development efforts to create a new toolset that incorporates simulation and ... |
|
| Aeroelastic Stability of the LCTR2 Civil Tiltrotor |
Oct-2008 |
16 pages |
| Authors:
Wayne Johnson; Acree; C W Jr; NATIONAL AERONAUTICS AND SPACE ADMINISTRATION MOFFETT FIELD CA AMES RESEARCH CENTER
|
| A new generation of very large tiltrotors is being studied to meet emerging transportation requirements. With gross weights well in excess of 100,000 lb, such aircraft will require new technologies for acceptable weight. Wings and rotors will have different per-rev frequencies and mode shapes than current tiltrotors, so coupling between destabilizing aeroelastic modes may differ from past experience. This paper presents aeroelastic stability analyses for a Large Civil Tiltrotor (LCTR2), ... |
|
| RDHWT/MARIAH II Hypersonic Wind Tunnel Research Program |
01-Sep-2008 |
165 pages |
| Authors:
M L Laster; C C Limbaugh; J L Jordan; AEROSPACE TESTING ALLIANCE (ATA) ARNOLD AFB TN
|
| The U.S. Air Force sponsored and the USAF Arnold Engineering Development Center directed the Radiantly Driven Hypersonic Wind Tunnel (RDHWT)/ Magnetohydrodynamic Accelerator Research Into Advanced Hypersonics (MARIAH II) Program. This report primarily covers the research for the period from January 2001 through July 2004. The scope of the research program was to develop enabling technologies for a medium-scale hypersonic wind tunnel (MSHWT) that would provide a Mach 8 to 15 ... |
|
| A Constraint Based Approach for Building Operationally Responsive Satellites |
01-Sep-2008 |
146 pages |
| Authors:
AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF ENGINEERING AND MANAGEMENT
|
| The Operational Responsive Space (ORS) program requires flexible and responsive satellites to meet user's needs. Traditional satellite design methods are typically iterative processes that optimize individual components, subsystems, and ultimately the entire satellite. This study focuses on developing a new approach for creating Responsive Satellites (RS) from Plug-and-Play (PnP) components. The aim is to create an approach that quickly evaluates a wide variety of possible satellite configurations and identify the ... |
|
| Integration of Systems with Varying Levels of Autonomy (Integration de Systemes a Niveau d'Autonomie Variable) |
Sep-2008 |
|
| Authors:
NATO RESEARCH AND TECHNOLOGY ORGANIZATION NEUILLY-SUR-SEINE (FRANCE)
|
| The report begins with a historical background and the evolution of systems engineering. The report then addresses issues of controlling land, sea and air vehicles in a system of systems. There is a chapter discussing both negative and positive aspects of systems engineering, followed by a presentation of recommended best practices. There is discussion of complexity and automation, man/machine interface, single vs. multiple vehicles, and mission management, especially robust design ... |
|
| Integration of Systems with Varying Levels of Autonomy (Integration de systemes a niveau d'autonomie variable) |
Sep-2008 |
|
| Authors:
NATO RESEARCH AND TECHNOLOGY ORGANIZATION NEUILLY-SUR-SEINE (FRANCE)
|
| The report begins with a historical background and the evolution of systems engineering. The report then addresses issues of controlling land, sea and air vehicles in a system of systems. There is a chapter discussing both negative and positive aspects of systems engineering, followed by a presentation of recommended best practices. There is discussion of complexity and automation, man/machine interface, single vs. multiple vehicles, and mission management, especially robust design ... |
|
| Evolutionary Software Development (Developpement Evolutionnaire de Logiciels) |
Aug-2008 |
|
| Authors:
NATO RESEARCH AND TECHNOLOGY ORGANIZATION NEUILLY-SUR-SEINE (FRANCE)
|
| This task group investigated iterative processes for software development, especially those (called Evolutionary Software Development) that span many cycles of software implementation, release, fielding of the product, learning from the field experience, then updating the requirements for subsequent releases. This goes beyond the Spiral Model or Agile Methods when they are only used prior to initial delivery, and also beyond incremental delivery. The methodology followed was to review the literature, ... |
|
| ORA User's Guide 2008 |
01-Jul-2008 |
589 pages |
| Authors:
Jeff Reminga; Il-Chul Moon; Matt DeReno; Kathleen M Carley; Dave Columbus; CARNEGIE-MELLON UNIV PITTSBURGH PA SCHOOL OF COMPUTER SCIENCE
|
| ORA is a network analysis tool that detects risks or vulnerabilities of an organization's design structure. The design structure of an organization is the relationship among its personnel, knowledge, resources, and tasks entities. These entities and relationships are represented by the Meta-Matrix. Measures that take as input a Meta-Matrix are used to analyze the structural properties of an organization for potential risk. ORA contains over 100 measures which are categorized ... |
|
| Density as a Cost-driver in Naval Submarine Design and Procurement |
25-Jun-2008 |
96 pages |
| Authors:
Benjamin P Grant; NAVAL POSTGRADUATE SCHOOL MONTEREY CA GRADUATE SCHOOL OF BUSINESS AND PUBLIC POLICY
|
| This thesis examines density reduction as an alternative to weight or size reduction when decision-makers seek options for lower-cost submarine designs. The parameter density measures how tightly systems and equipment are placed within a hull structure. To address design characteristics unique to submarines, this research mainly focuses on submarine design and procurement although the general concepts are applicable to surface ship designs and may be applied more broadly. Based on ... |
|
| Beyond the Classical Performance Limitations Controlling Uncertain MIMO Systems: UAV Applications. 2nd Session |
May-2008 |
87 pages |
| Authors:
Mario Garcia-Sanz; UNIVERSIDAD PUBLICA DE NAVARRA PAMPLONA (SPAIN) DEPT DE AUTOMATICA Y COMPUTACION
|
| This paper summarizes a new methodology to design sequential non-diagonal QFT controllers for multi-input multi-output MIMO systems with uncertainty, which is a central issue in UAV control systems. It also demonstrates the feasibility of that methodology to control the position and attitude of a 6x6 MIMO spacecraft with large flexible appendages. The last part of the paper introduces a new practical methodology to design robust controllers that work under a ... |
|
| Beyond the Classical Performance Limitations Controlling Uncertain MIMO Systems: UAV Applications |
May-2008 |
44 pages |
| Authors:
Mario Garcia-Sanz; Irene Equinoa; Jorge Elso; UNIVERSIDAD PUBLICA DE NAVARRA PAMPLONA (SPAIN) DEPT DE AUTOMATICA Y COMPUTACION
|
| This paper summarizes a new methodology to design sequential non-diagonal QFT controllers for multi-input multi-output MIMO systems with uncertainty, which is a central issue in UAV control systems. It also demonstrates the feasibility of that methodology to control the position and attitude of a 6x6 MIMO spacecraft with large flexible appendages. The last part of the paper introduces a new practical methodology to design robust controllers that work under a ... |
|
| Beyond the Classical Performance Limitations Controlling Uncertain MIMO Systems: UAV Applications. 1st Session |
May-2008 |
77 pages |
| Authors:
Mario Garcia-Sanz; UNIVERSIDAD PUBLICA DE NAVARRA PAMPLONA (SPAIN) DEPT DE AUTOMATICA Y COMPUTACION
|
| This paper summarizes a new methodology to design sequential non-diagonal QFT controllers for multi-input multi-output MIMO systems with uncertainty, which is a central issue in UAV control systems. It also demonstrates the feasibility of that methodology to control the position and attitude of a 6x6 MIMO spacecraft with large flexible appendages. The last part of the paper introduces a new practical methodology to design robust controllers that work under a ... |
|
| Achilles' Head: Understanding the Challenges in Implementing Dependable and Secure Deeply Networked Military Embedded Systems |
21-Apr-2008 |
50 pages |
| Authors:
David K Sarji; CARNEGIE-MELLON UNIV PITTSBURGH PA
|
| Embedded computing is an essential part of our military capacity. Experience with traditional information technology (IT) systems has made it abundantly clear that computing systems are subject to attacks, and that including security in the design process is a critical component in the development of new systems. However, developing secure embedded systems is not a simple matter of transferring security techniques from traditional information technology environments. Due to the strenuous ... |
|
| Reassessment of Human Performance Parameter Estimates for Respiratory Protection Design and Development |
JAN 2008 |
48 pages |
| Authors:
David M. Caretti; Karen M. Coyne; EDGEWOOD CHEMICAL BIOLOGICAL CENTER ABERDEEN PROVING GROUND MD RESEARCH AND TECHNOLOGY DIR
|
| The key to ensuring that rational respirator technology solutions are possible and acceptable to the user community is the knowledge that each option has a sound scientific basis. Historical mask wear human performance research offers useful, albeit limited, insights on the relationships between design parameters and performance. The purposes of the current task were to review and revise the existing human performance capabilities and mask design parameters databases and to ... |
|
| Optimum Design of a Flexible Wing Structure to Enhance Roll Maneuver in Supersonic Flow |
2008 |
8 pages |
| Authors:
Duane E. Veley; Narendra S. Khot; Jeffrey V. Zweber; Alicia R. Hartong; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH AIR VEHICLES DIRECTORATE
|
| This work combines two efforts that have been on-going in the Air Force Research Laboratory. The first effort is the work of the Design Modeling Group which is using the Adaptive Modeling Language (AML) to develop an object-based technology assessment system. One of the advantages of this effort is that the analytical tools (legacy codes) that are used may be integrated into the AML environment one at a time, thereby ... |
|
| Structural Waveguides for Aerodynamic Turbulent Drag Reduction |
30 DEC 2007 |
27 pages |
| Authors:
Pavlos P. Vlachos; Martin Johnson; Alessandro Toso; James Carneal; VIRGINIA POLYTECHNIC INST AND STATE UNIV BLACKSBURG DEPT OF MECHANICAL ENGINEERING
|
| The objective of this project was to provide a proof-of-concept that travelling wave disturbances on the surface of a vehicle can generate viscous drag reduction benefits. This would be accomplished by developing structural waveguides within a cylinder that under actuation impart a structural surface wave disturbance in the form of a travelling wave. During the nine month performance of the work presented herein we were successful indesigning and fabricating structural ... |
|
| A Unified Specification of Behavior for Requirements and Design |
10 DEC 2007 |
174 pages |
| Authors:
Jr Kirby James; NAVAL RESEARCH LAB WASHINGTON DC CENTER FOR HIGH ASSURANCE COMPUTING SYSTEMS (CHACS)
|
| It would be useful to write one description of software behavior to serve both requirements and design. Having one description could reduce effort by eliminating the work of developing two descriptions and keeping them consistent throughout development and maintenance. It would also eliminate the inconsistency inherent in having two descriptions, a fertile source of error. A question paramount to software engineers is "Could one description of behavior for a real ... |
|
| IPDO-2007 - Inverse Problems, Design and Optimization Symposium |
01 DEC 2007 |
29 pages |
| Authors:
George S. Dulikravich; FLORIDA INTERNATIONAL UNIV MIAMI
|
| IPDO-2007 Symposium's main objectives were to bring the three communities of researchers (inverse problems experts, design theory experts, and optimization experts) together and provide a common forum for presenting different applications, problems, and solution strategy concepts. These three areas of research covered by the IPDO Symposium have a number of things in common. For example, many methodologies for solving inverse problems employ optimization algorithms. However, there are no optimization algorithms ... |
|
| Mixed-Flow Waterjet (MxWJ) Model 5662-1: Initial Study of Yaw Effects on Waterjet Powering and Transom Depth Effects on Waterjet Priming |
DEC 2007 |
40 pages |
| Authors:
Dominic S. Cusanelli; NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD HYDROMECHANICS DIRECTORATE
|
| This report is a partial documentation a series of model-scale experiments conducted 5/07-6/07, on Mixed-Flow Waterjet (MxwJ) Model 5662-1, a waterjet propelled variant of the Joint High Speed Sealift (JHSS) hull platform. This document contains data and evaluations from initial investigations into the following two waterjet topic areas: (1) The effects of model yaw angles on waterjet powering. Model-scale rotor force measurements of thrust and torque at angles of yaw ... |
|
| Borehole X-Ray Fluorescence Spectrometer (XRFS): User's Manual, Software Description, and Performance Report |
DEC 2007 |
168 pages |
| Authors:
W. C. Kelliher; I. A. Carlberg; W. T. Elam; E. Willard-Schmoe; WASHINGTON UNIV SEATTLE APPLIED PHYSICS LAB
|
| The X-ray fluorescence spectrometer (XRFS) is designed to be deployed down a predrilled hole for exploration and elemental analysis of subsurface planetary regolith. The spectrometer excites atoms in the regolith and causes them to emit their characteristic X-rays. These characteristic X-rays produce peaks in the Xray spectrum. By measuring the energy of the X-rays, elements are identified. By measuring the intensity of the peaks, the amount of each element can ... |
|
| Design Processes and Criteria for the X-51A Flight Vehicle Airframe |
01 NOV 2007 |
|
| Authors:
Jeffrey Lane; BOEING CO HUNTINGTON BEACH CA INTEGRATED DEFENSE SYSTEMS
|
| Flight vehicle airframes in today's advanced flight systems are required to optimally integrate a variety of multi-functional requirements to maximize effectiveness with acceptable risk. The X-51A airframe design process and criteria draw upon decades of successful design of both manned and unmanned flight vehicles for production and experimental intent. This paper summarizes the X-51A vehicle mission requirements, system design, design processes used for airframe synthesis, design safety factors, success criteria ... |
|
| UAV Design Processes / Design Criteria for Structures RTA AVT Workshop. Technical Evaluation Report |
01 NOV 2007 |
9 pages |
| Authors:
Ed Pendleton; Otto Sensburg; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH
|
| A NATO RTO AVT Workshop entitled UAV Design Processes / Design Criteria for Structures was held in Florence, Italy on April 15th and 16th, 2007. A variety of papers were presented by industry practitioners on the topics of UAV design and qualification, along with authors from government agencies associated with aeronautical development. Thorough discussions were held during the course of the workshop and these discussions were further expanded and summarized ... |
|
| Facility Composer (Trademark) and PACES (Trademark) Integration: Development of an XML Interface Based on Industry Foundation Classes |
NOV 2007 |
129 pages |
| Authors:
Susan D. Nachtigall; Beth A. Brucker; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING RESEARCH LAB
|
| The Architectural Engineering and Construction (AEC) industry has made substantial effort over the past several years to create a standard facility modeling format that better enables their different software applications to work together. This emerging standard, known as the Industry Foundation Class (IFC), is being developed by the International Alliance for Interoperability (IAI) and can be found in recent releases of commercial AEC software. With the evolution of this facility ... |
|
| Fundamental Investigations of the Tribological Properties of Biological Interfaces |
NOV 2007 |
12 pages |
| Authors:
Scott S. Perry; HOUSTON UNIV TX DEPT OF CHEMISTRY
|
| During the course of this project, we have focused on developing a molecular level understanding of the tribological properties of polymer brush systems and the relationship between these properties and issue of surface chemistry and solvation. Studies have been conducted on the microscopic length scale. Success has been realized through the control of polymer architecture via synthetic routes and has provided the means for systematic and fundamental studies of polymer ... |
|
| Speckle Free, Low Coherency, High Brightness, and High Pulse Speed Infrared Collimated Light Sources for Mid-IR Target Designator and Hyperspectral Imaging |
31 OCT 2007 |
89 pages |
| Authors:
Yee-Loy Lam; DENSELIGHT SEMICONDUCTORS PTE LTD (SINGAPORE)
|
| The indium phosphide-based SLED is an ideal light source for eye-safe target designation and imaging at 1550 nm spectral region. Its wide spectral width ensures low coherency, which is critical for speckle free imaging. A high brightness and well-collimated output beam allow for projection of the illumination across long distances. In this project, a high brightness SLED chip that exceeds 200 mW in peak optical power output and >20 nm ... |
|
| SecureCore Security Architecture: Authority Mode and Emergency Management |
16 OCT 2007 |
30 pages |
| Authors:
Timothy E. Levin; Ganesha Bhaskara; Thuy D. Nguyen; Paul C. Clark; Terry V. Benzel; Cynthia E. Irvine; NAVAL POSTGRADUATE SCHOOL MONTEREY CA CENTER FOR INFORMATION SYSTEMS SECURITY STUDIES AND RESEARCH
|
| This document describes research in the SecureCore project. It describes results in the integration of SP Authority Mode hardware security features into the SecureCore Software Security Architecture and the SecureCore Trusted Management Layer. The context of integration is described including the target security policy, transient trust requirements and rationale. The design for protecting secondary storage volumes, trusted channels, and emergency management is described. Design considerations and recommendations for future work ... |
|
| Dispersion and Reinforcement of Nanotubes in High Temperature Polymers for Ultrahigh Strength and Thermally Conductive Nanocomposites |
03 OCT 2007 |
73 pages |
| Authors:
Arnold C. Yang; NATIONAL TSING HUA UNIV HSINCHU (TAIWAN) DEPT OF MATERIALS SCIENCE AND ENGINEERING
|
| Fundamental approaches for controlled dispersion of multiwalled carbon nanotubes in polymers and the molecular reinforcement in their nanocomposites were studied to design and fabricate well-dispersed percolated carbon nanotube networks in high temperature polymers. |
|
| Adaptive Deblurring of Noisy Images |
OCT 2007 |
30 pages |
| Authors:
S. S. Young; RONALD G. DRIGGERS; Brian P. Teaney; Eddie L. Jacobs; ARMY RESEARCH LAB ADELPHI MD SENSORS SIGNATURES AND SIGNAL PROCESSING INFORMATION DIRECTORATE
|
| This report proposes a practical sensor deblur filtering method for images that are contaminated with noise. A sensor blurring function is usually modeled via a Gaussian-like function having a bell shape. The straightforward inverse function results in magnification of noise at the high frequencies. In order to address this issue, we apply a special spectral window to the inverse blurring function. This special window is called the power window, which ... |
|
| Packet-Based Control Algorithms for Cooperative Surveillance and Reconnaissance |
OCT 2007 |
11 pages |
| Authors:
Richard M. Murray; CALIFORNIA INST OF TECH PASADENA CONTROL AND DYNAMICAL SYSTEMS
|
| This project focused on developing algorithms for multi-vehicle, cooperative surveillance and reconnaissance that operate in a modern net-centric environment. These algorithms take into account the packet-based nature of modern networks by coding information in a manner that makes the performance of the system robust to packet loss, variable latency, and repeated transmissions. Results include analysis and design of estimation and control algorithms in the presence of packet loss and across ... |
|
| Using ArchE in the Classroom: One Experience |
SEP 2007 |
|
| Authors:
John D. McGregor; Felix Bachmann; Len Bass; Philip Bianco; Mark Klein; CARNEGIE-MELLON UNIV PITTSBURGH PA SOFTWARE ENGINEERING INST
|
| The Architecture Expert (ArchE) tool serves as a software architecture design assistant. It embodies knowledge of quality attributes and the relation between the achievement of quality attribute requirements and architecture design. This technical note describes the use of a pre-alpha release of ArchE in a graduate-level software architecture class at Clemson University. ArchE was used to assist the students in the architecting process. The tool was then evaluated by the ... |
|
| Preliminary Design and Analysis of an Environmentally Friendly 5.56 mm Bullet to Replace the M855 |
SEP 2007 |
22 pages |
| Authors:
W. Lawhorn /S. J. /Bless; F. Brody; R. Kline; TEXAS UNIV AT AUSTIN INST FOR ADVANCED TECHNOLOGY
|
| The University of Texas at Austin's Institute for Advanced Technology (IAT) performed a configuration design and aeroballistic performance characterization study of a 5.56 mm bullet suitable for replacement of the existing M855 ball ammunition, which has a full metal jacket with lead alloy core and a steel penetrator. The scope of the study effort was to evolve a suitable, environmentally friendly replacement round that is compatible with the M249, M16 ... |
|
| Modifiability Tactics |
SEP 2007 |
|
| Authors:
Felix Bachmann; Len Bass; Robert Nord; CARNEGIE-MELLON UNIV PITTSBURGH PA SOFTWARE ENGINEERING INST
|
| An architectural tactic is a design decision that affects how well a software architecture addresses a particular quality attribute. This report describes how tactics are based on the parameters of quality attribute models. Tactics provide an architectural means of adjusting those parameters, which, in turn, can improve the quality-attribute-specific behavior of the resulting system. This report justifies the tactics for modifiability, using established concepts of coupling, cohesion, and cost motivations ... |
|
| Power and Energy Strategy |
03 AUG 2007 |
15 pages |
| Authors:
Jennifer Hitchcock; TACOM RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI GROUND VEHICLE POWER AND MOBILITY
|
| This briefing covers power sources in the 1 KW thru 1 MW range, a common range for vehicles and mobile generators. The objectives of the division are to develop an integrated strategy to meet the power and energy requirements of current and future modular force. |
|
| Knightsat Flight Design Review |
03 AUG 2007 |
89 pages |
| Authors:
Rebecca Kendall; Randal Allen; Danielle Grant; Daniel Stuhr; Lashanda Oliver; Timothy Young; J. G. Dilworth; Jason Dunn; Daniel Hand; Jessica Vega; UNIVERSITY OF CENTRAL FLORIDA ORLANDO
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| Flight competition report regarding the Knightsat, Nanosat-4 competition for the Air Force Research Laboratory. Knightsat, being a student ran organization, was spilt into three sub-systems, Attitude Determining Control Systems, Structures and Payload, and Power and Communications. Knightsat's primary goal is to obtain a stereo image of one point on the earth's surface. Knightsat's program manager and primary mentor was Dr Roger Johnson, who also coordinated assistance for the project with ... |
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| Extensible 3D (X3D) Earth Technical Requirements Workshop Summary Report |
01 AUG 2007 |
156 pages |
| Authors:
Don Brutzman; Amela Sadagic; Terry Norbraten; NAVAL POSTGRADUATE SCHOOL MONTEREY CA MODELING VIRTUAL ENVIRONMENTS AND SIMULATION
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| The initial X3D Earth Technical Requirement Workshop called together leading experts to determine a broad set of technical requirements that will be necessary to construct an X3D Earth. This workshop was held 14-15 November 2006 at the Naval Postgraduate School (NPS) in Monterey, California, USA. The main goal in the creation of an Extensible 3D (X3D) Earth will be achieved by Web3D Consortium members who are preparing to build a ... |
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