| iMAST FY2005 Annual Report |
Jan-2005 |
45 pages |
| Authors:
PENNSYLVANIA STATE UNIV UNIVERSITY PARK APPLIED RESEARCH LAB INST FOR MANUFACTURING AND SUSTAINMENT TECHNOLOGIES
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 | The Institute for Manufacturing and Sustainment Technologies (iMAST) is a Department of the Navy Manufacturing Technology (ManTech) Center of Excellence located at The Pennsylvania State University's Applied Research Laboratory in State College, Pennsylvania. Formally established in 1995, the institute is comprised of seven technical thrust areas: Mechanical Drive Transmission Technologies * Materials Processing Technologies * Laser Processing Technologies * Advanced Composites Technologies * Manufacturing Systems * Systems Operations and Automation ... |
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| How Does Surface Modification Aid in the Dispersion of Carbon Nanofibers? |
Jan-2005 |
8 pages |
| Authors:
Donglu Shi; Jie Lian; Lumin Wang; Jian Zhao; Dale W Schaefer; Janis Brown; Gregory Beaucage; Rodney C Ewing; CINCINNATI UNIV OH DEPT OF CHEMICAL AND MATERIALS ENGINEERING
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| Small-angle light scattering is used to assess the dispersion behavior of vapor-grown carbon nanofibers suspended in water. These data provide the first insights into the mechanism by which surface treatment promotes dispersion. Both acid-treated and untreated nanofibers exhibit hierarchical morphology consisting of small-scale aggregates (small bundles) that agglomerate to form fractal clusters that eventually precipitate. Although the morphology of the aggregates and agglomerates is nearly independent of surface treatment, their ... |
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| Behind the Scenes: Patient Safety in the Operating Room and Central Materiel Service During Deployments |
2005 |
15 pages |
| Authors:
Elizabeth A. Vane; Edward Drost; Daryl Elder; Yvonne Heib; AGENCY FOR HEALTHCARE RESEARCH AND QUALITY ROCKVILLE MD
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| The United States Army perioperative nurses face unique patient care situations during overseas deployments. In this report, the experiences at the U.S. Army's 28th Combat Support Hospital in Iraq are described. The lessons learned from these situations can assist in patient safety in future operations. The challenges to the nursing staff of performing housekeeping tasks while simultaneously accomplishing a number of other patient care tasks are reviewed. The surgical suite ... |
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| The United Kingdom's Naval Shipbuilding Industrial Base: The Next Fifteen Years |
2005 |
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| Authors:
Mark V. Arena; Hans Pung; Cynthia R. Cook; Jefferson P. Marquis; Jessie Riposo; Gordon T. Lee; RAND EUROPE LEIDEN (NETHERLANDS)
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 | The United Kingdom's Ministry of Defence (MOD) is in the early stages of an ambitious effort to renew and upgrade its naval fleet over the next two decades through the production of new ships and submarines. Defence policy makers are seeking to gain a fuller understanding of the ability that shipyards, workers, and suppliers in the United Kingdom have to produce and deliver these vessels at the pace and in ... |
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| Comparing Strength of Locality of Reference: Popularity, Temporal Correlations, and Some Folk Theorems for the Miss Rates and Outputs of Caches |
2005 |
203 pages |
| Authors:
Sarut Vanichpun; MARYLAND UNIV COLLEGE PARK INST FOR SYSTEMS RESEARCH
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| The performance of demand-driven caching is known to depend on the locality of reference exhibited by the stream of requests made to the cache. In spite of numerous efforts, no consensus has been reached on how to formalize this notion, let alone on how to compare streams of requests on the basis of their locality of reference. We take on this issue with an eye towards validating operational expectations associated ... |
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| Effects of Defense Globalization: An Examination of Current and Future Command and Control Collaborations |
2005 |
23 pages |
| Authors:
Sandra P. Switzer; Michael A. Stropki; DEFENSE ACQUISITION UNIV ALEXANDRIA VA
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| The objective of this research is to address the need for multilateral command and control interoperability. We will examine the issues associated with technology transfers and the political environment that could influence future collaboration of multinational defense industries toward migrating into global defense industry markets. To better understand interoperability and its multiple dimensions, we conducted literature reviews (primarily focused on Europe and NATO members), held interviews with subject matter experts, ... |
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| A New Direction for China's Defense Industry |
2005 |
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| Authors:
Evan S. Medeiros; Roger Cliff; Keith Crane; James C. Mulvenon; RAND CORP SANTA MONICA CA
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| Since the early 1980s, a prominent and consistent conclusion of Western research on China's defense-industrial complex has been that China's defense R&D and production capabilities are rife with weaknesses and limitations. In this study, we call into question this conventional wisdom. Our research found that certain Chinese defense enterprises are designing and producing a wide range of increasingly advanced weapons that, in the short term, are relevant to the Chinese ... |
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| Biotechnology |
2005 |
60 pages |
| Authors:
Angie Annaballi; Jill Beaver; John Collie; Rafael DeJesus; Jiri Gajdos; Dave Jerome; Stewart LeBlanc; Linda Ngo; Chris Ray; Ceceila Royster; Mike Schalck; INDUSTRIAL COLL OF THE ARMED FORCES WASHINGTON DC
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| The United States biotechnology industry has grown tremendously since 1992, with revenues increasing from $8 billion in 1992 to $39.2 billion in 2003. As a result, biotechnology has revolutionized the way scientists view living matter their research and development efforts have led to the commercialization of many diverse products which have dramatically improved human and animal health, the world's food supply, and the quality of the environment. These successful applications ... |
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| The Aircraft Industry |
2005 |
43 pages |
| Authors:
Tim Fitzgerald; Noureddine Baiche; Mike Brewer; Al Collins; Kathy Knapp; Marilyn Kott; Duncan McGill; Dunstan Mensah; Mark Neighbors; Dee Reardon; INDUSTRIAL COLL OF THE ARMED FORCES WASHINGTON DC
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| The aircraft industry is continuing its recovery from the devastating effects of 9/11 and the associated economic slow down. As the airline companies prepare to buy new Boeing and Airbus passenger jets, they remain under intense pressure to cut costs in order to remain profitable, forcing aircraft and engine manufacturers to adopt austere measures. While airlines have seen improved financial statements, the recent increases in fuel costs have continued to ... |
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| Information Technology |
2005 |
52 pages |
| Authors:
Mohd Al-Dosari; Steve Asher; Joe Bass; Sherrill Daily; Steve Elliott; Beth Flanagan; Kathy Hithe; Scott Hoffman; Rudy Laco; Jim Lund; INDUSTRIAL COLL OF THE ARMED FORCES WASHINGTON DC
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| The US Information Technology (IT) industry is a critical enabler of all major US industries and their ability to support the US National Security Strategy. As a crucial element of US Government and Department of Defense transformation efforts, the US IT industry must overcome several challenges if it is to retain its lead in the world market. These challenges include maintaining a strong IT workforce, addressing growing foreign competition, developing ... |
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| Shipbuilding |
2005 |
36 pages |
| Authors:
Ronald P. Alberto; Michael G. Archuleta; Steven H. Bills; William A. Bransom; Kenneth Cohen; William A. Ebbs; George Manjgaladze; Elizabeth B. Myhre; Audrea M. Nelson; Robert L. Riddick; INDUSTRIAL COLL OF THE ARMED FORCES WASHINGTON DC
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| The purpose of this study was to examine the shipbuilding industrial base and its ability to support the United States national security strategy. We found that commercial shipbuilding in the United States has been completely surpassed by the global shipbuilding industry to the point where it survives only to fulfill the niche market of the protected Jones Act fleet. At the same time, the unit cost of United States naval ... |
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| pCover: Partial Coverage for Long-Lived Surveillance Sensor Networks |
2005 |
26 pages |
| Authors:
Limin Wang; Sandeep S. Kulkarni; MICHIGAN STATE UNIV EAST LANSING DEPT OF COMPUTER SCIENCE/ENGINEERING
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| We present a protocol for partial (but high) coverage in sensor networks. We demonstrate that it is feasible to maintain a high coverage (>90%) while significantly increasing coverage duration when compared with protocols that provide full coverage. In particular, we show that our protocol maintains 94% coverage for a duration that is 2.3-7 times the duration for which existing protocols maintain full coverage. Through simulations, we show that our protocol ... |
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| A Framework for Learning and Control in Intelligent Humanoid Robots |
2005 |
37 pages |
| Authors:
Oliver Brock; Andrew Fagg; Roderic Grupen; Robert Platt; Michael Rosenstein; John Sweeney; MASSACHUSETTS UNIV AMHERST DEPT OF COMPUTER SCIENCE
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| Future application areas for humanoid robots range from the household, to agriculture, to the military, and to the exploration of space. Service applications such as these must address a changing, unstructured environment, a collaboration with human clients, and the integration of manual dexterity and mobility. Control frameworks for service-oriented humanoid robots must, therefore, accommodate many independently challenging issues including: techniques for configuring networks of sensorimotor resources; modeling tasks and constructing ... |
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| Meso and Micro Scale Propulsion Concepts for Small Spacecraft |
24 DEC 2004 |
50 pages |
| Authors:
R. A. Yetter; V. Yang; I. A. Aksay; F. L. Dryer; PENNSYLVANIA STATE UNIV UNIVERSITY PARK DEPT OF MECHANICAL AND NUCLEAR ENGINEERING
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| A meso/micro-scale liquid propellant thruster was designed and developed for small spacecraft. Gas-phase combustion was stabilized in small combustion chambers (approx. 10-200 cu mm) using vortex flows. For liquid propellant steady-state operation, the propellant was injected directly into the chamber tangentially along the combustor wall. Heat feedback from the flame, once ignited, decomposed and gasified the liquid propellant. Although the propellant of interest was a HAN-based liquid propellant, initial studies ... |
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| The Capon-MVDR Algorithm Threshold Region Performance Prediction and Its Probability of Resolution |
20 DEC 2004 |
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| Authors:
Christ D. Richmond; MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB
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| The Capon-MVDR algorithm exhibits a threshold effect in mean-squared error (MSE) performance 1. Below a specific threshold signal-to-noise ratio (SNR) the MSE of signal parameter estimates derived from the Capon algorithm rises rapidly. Prediction of this threshold SNR point is clearly of practical significance for system design and performance. Via an adaptation of an interval error-based method referred to herein as the method of interval errors (MIE) 2, 3 the ... |
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| Wireless Sensor Network Lifetime Analysis Using Interval Type-2 Fuzzy Logic Systems |
01 DEC 2004 |
78 pages |
| Authors:
Qilian Liang; Haining Shu; TEXAS UNIV AT ARLINGTON OFFICE OF SPONSORED PROJECTS
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| During the period of 6/1/2004 - 11/30/2004, we have proposed different approaches on energy efficient wireless sensor networks. (1) We applied interval type-2 fuzzy logic systems to wireless sensor network lifetime analysis. (2) A distributed sensor deployment scheme using fuzzy logic systems was proposed. (3) We proposed a new approach for sensed signal strength forecasting in wireless sensors using interval type-2 fuzzy logic system. (4) Energy and delay aware packet ... |
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| Improving the Speed of Dynamic Cluster Formation in Manet Via Simulated Annealing |
DEC 2004 |
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| Authors:
K. Manousakis; J. S. Baras; A. J. McAuley; R. Morera; MARYLAND UNIV COLLEGE PARK DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
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| Future military systems, such as FCS, require a robust and flexible network that supports thousands of ad hoc nodes. Therefore, networking protocols for MANETs must be made to scale. The use of hierarchy is a powerful general solution to the scaling problem. We have previously proposed methods based on Simulated Annealing (SA) to optimize hierarchy in MANETs. The challenge, however, is to improve the slow convergence time of SA, so ... |
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| Interface Modeling for Electro-Osmosis in Subgrade Structures |
DEC 2004 |
7 pages |
| Authors:
Sean W. Morefield; Michael K. McInerney; Vincent F. Hock; Orange S. Marshall Jr.; Phillip G. Malone; Charles A. Weiss Jr; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING RESEARCH LAB
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| Conventional waterproofing techniques for below grade structures are ineffective, expensive and short lived. Electro-Osmotic Pulse technology is an alternative technique to controlling moisture movement in porous medium. A research study was undertaken to model the complex osmotic behavior of a system consisting of portland cement with aggregate and different clays (kaolinite. montmorillonite, limestone and quartz sands) created to simulate below grade structures. A direct current 30- to 45-Volt source was ... |
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| TechIP: A Methodology for Emerging Information Technology Insertion & Integration |
DEC 2004 |
3 pages |
| Authors:
Has Patel; INFOLOGIC INC NEWPORT BEACH CA
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| A number of current and planned government information system projects are mission critical, network-centric, complex and have long life cycles. In addition, they incorporate a number of requirements that need the application of emerging technologies, such as multimedia (data, voice, image) processing and software agents. To implement these requirements, the system designers are required to insert, integrate and manage proven advances in Emerging Information Technology (EIT) in to the system. ... |
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| A Nondestructive Evaluation Technique for Fiber Reinforced Polymer (FRP) Composites Using Acoustic Guided Waves (AGW) |
DEC 2004 |
9 pages |
| Authors:
J. C. Trovillion; V. F. Godinez-Azcuaga; R. D. Finlayson; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING RESEARCH LAB
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| In this paper, the predictions of the theoretical model and results obtained in the inspection of FRP wraps on concrete samples with seeded defects are presented. Additionally, the successful use of this NDE technique in the detection and imaging of delaminations, debonds, cracks and steel reinforcement in FRP-Concrete structures are discussed. These results are presented in the form of displayed RF waveforms and color-coded C-scan images. Finally, a description of ... |
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| Progress Toward a Microfabricated Gas Turbine Generator for Soldier Portable Power Applications |
DEC 2004 |
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| Authors:
S. A. Jacobson; S. Das; N. Savoulides; J. L. Steyn; J. Lang; H. Q. Li; C. Livermore; M. A. Schmidt; C. J. Teo; S. D. Umans; A. H. Epstein; D. P. Arnold; J-w. Park; I. Zana; M. G. Allen; MASSACHUSETTS INST OF TECH CAMBRIDGE MICROSYSTEMS TECHNOLOGY LABS
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| Microelectromechanical systems (MEMS) turbocharger and electric generator devices have been fabricated and tested as part of a program at MIT to develop a microfabricated gas turbine generator for portable power applications. The overall efficiency of this device, relative to its conventional-scale brethren, is limited by small-scale physics and microfabrication constraints. However, even at modest efficiency levels, the performance of a microscale engine is considerably better than batteries, offering the potential ... |
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| Nanostructured Origami (Trademark) 3D Fabrication and Self Assembly Process for Soldier Combat Systems |
DEC 2004 |
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| Authors:
William J. Arora; Hyun J. In; Tilman Buchner; Yang Shao-Horn; Henry I. Smith; George Barbastathis; MASSACHUSETTS INST OF TECH CAMBRIDGE
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| The Nanostructured Origami(Trademark) 3D Fabrication and Assembly Process is a method of manufacturing 3D nanosystems using exclusively 2D lithography tools. The 3D structure is obtained by folding a nanopatterned 2D substrate. We report on the materials, actuation and modeling aspects of the manufacturing process, and present results from fabricated structures. |
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| Application-Specific Optical Interconnects for Embedded Multiprocessors |
DEC 2004 |
3 pages |
| Authors:
Neal K. Bambha; Shuvra S. Bhattacharyya; ARMY RESEARCH LAB ADELPHI MD
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| Embedded systems are distinguished from general-purpose computers in that they consist of special-purpose hardware and software optimized for a specific task. They are pervasive in Army systems, appearing in soldier radios, sensor systems, vehicle control, communication systems, and many other applications. This paper focuses on multiprocessor embedded systems targeted towards signal, image, and video processing applications requiring large computing power and having real-time performance requirements. As transistor sizes shrink, interconnects ... |
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| Additive/Subtractive Manufacturing Research and Development in Europe |
DEC 2004 |
155 pages |
| Authors:
Joseph J. Beaman; Clint Atwood; Theodore L. Bergman; David Bourell; Scott Hollister; David Rosen; WORLD TECHNOLOGY EVALUATION CENTER INC BALTIMORE MD
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| This report is a review of additive/subtractive manufacturing techniques in Europe. Otherwise known as Solid Freeform Fabrication (SFF), this approach has resided largely in the prototyping realm, where the methods of producing complex freeform solid objects directly from a computer model without part-specific tooling or knowledge started. But these technologies are evolving steadily and are beginning now to encompass related systems of material addition, subtraction, assembly, and insertion of components ... |
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| Civil-Military Integration and Chinese Military Modernization. Asia-Pacific Center for Security Studies, Volume 3, Number 9, December 2004 |
Dec-2004 |
5 pages |
| Authors:
Richard A Bitzinger; ASIA-PACIFIC CENTER FOR SECURITY STUDIES HONOLULU HI
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| Civil-military integration (CMI) is the process of combining the defense and civilian industrial bases so that common technologies, manufacturing processes and equipment, personnel, and facilities can be used to meet both defense and commercial needs. According to the U.S. Congressional Office of Technology Assessment, CMI includes: cooperation between government and commercial facilities in research and development (R&D), manufacturing, and/or maintenance operations; combined production of similar military and commercial items, including ... |
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| Self-Organizing and Autonomous Learning Agents and Systems |
30 NOV 2004 |
69 pages |
| Authors:
Wei-Min Shen; UNIVERSITY OF SOUTHERN CALIFORNIA MARINA DEL REY INFORMATION SCIENCES INST
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| During the period of 9/1/2003 through 8/31/2004 we have developed solutions for two critical problems faced by self-reconfigurable systems: (1) Autonomous discovery and response to unexpected topology changes; (2) A new distributed functional language called DH2 for programming of self- reconfigurable systems using hormone-inspired computational methods. These results are published by Dr Wei-Min Shen and his students Behnam Salemi, Maks Krivokon, and Michael Rubenstein. |
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| Materials and Coatings for Extreme Performances: Investigations, Applications, Ecologically Safe Technologies for Their Production and Utilization |
16 NOV 2004 |
590 pages |
| Authors:
INSTITUTE FOR PROBLEMS IN MECHANICS MOSCOW (USSR)
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| The Final Proceedings for Materials and Coatings for Extreme Performance: Investigations, Applications, Ecologically Safe Technologies for Their Production and Utilization, 13 September 2004 - 17 September 2004 Principles of designing materials and coatings for operation in hazard conditions; Scientific fundamentals and computer models for the processes of manufacturing materials and coatings for operation in hazard conditions; Advanced technologies for production and joining materials and products for operation in hazard conditions; ... |
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| Network-Centric Environment: A Modular Modeling and Simulation/Synthetic Environment (M&S/SE) framework |
NOV 2004 |
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| Authors:
A. L. Vallerand; M. Thompson; DEFENCE RESEARCH AND DEVELOPMENT CANADAOTTAWA (ONTARIO)
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| A modular Modeling & Simulation/Synthetic Environment (M&S/SE) framework for developing and supporting a network-centric or distributed Collaborative Synthetic Environments (CSE) is proposed and its specific and detailed requirements are documented here. It is proposed that such a framework is specifically designed to promote, foster, augment and expedite the standardization, interoperability, commonality, reusability, and seamless integration of M&S/SE systems including legacy systems in DND. Other Government Departments (OGD) and beyond. The ... |
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| A New Biologically Motivated Framework for Robust Object Recognition |
NOV 2004 |
12 pages |
| Authors:
Thomas Serre; Lior Wolf; Tomaso Poggio; MASSACHUSETTS INST OF TECH CAMBRIDGE COMPUTER SCIENCE AND ARTIFICIAL INTELLIGENCE LAB
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| In this paper,we introduce a novel set of features for robust object recognition, which exhibits outstanding performances on a variety of object categories while being capable of learning from only a few training examples. Each element of this set is a complex feature obtained by combining position- and scale-tolerant edge-detectors over neighboring positions and multiple orientations. Our system motivated by a quantitative model of visual cortex outperforms state-of-the-art systems on ... |
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| An Eight-Channel Demultiplexing Switch Array Using Vertically Coupled Active Semiconductor Microdisk Resonators |
NOV 2004 |
4 pages |
| Authors:
Seung J. Choi; Zhen Peng; Qi Yang; Sang J. Choi; P. D. Dapkus; UNIVERSITY OF SOUTHERN CALIFORNIA LOS ANGELES DEPT OF ELECTRICAL ENGINEERING AND ELECTROPHYSICS
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| The authors demonstrate a 1.6-nm spectrally spaced eight-channel demultiplexer using active semiconductor microdisk resonators as a platform technology. Taking full advantage of the active microdisks, they are able to switch ON and OFF a resonator individually and tune the resonant wavelength as well by controlling the current injection levels. The use of active microdisks affords narrow spectral linewidth ( |
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| Advanced Materials Intelligent Processing Center: Phase IV (CD-ROM) |
13 OCT 2004 |
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| Authors:
Suresh G. Advani; J. W. Gillespie Jr.; Ignacio Perez; DELAWARE UNIV NEWARK CENTER FOR COMPOSITE MATERIALS
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| ELECTRONIC FILE CHARACTERISTICS: 21 files; Adobe Acrobat (.PDF). PHYSICAL DESCRIPTION: 1 computer laser optical disc (CD-ROM); 4 3/4 in.; 69.8 MB and 1 paper report. SYSTEMS DETAIL NOTE: ABSTRACT: The objective of the Advanced Materials Intelligent Processing Center (AMIPC) is to apply tools in an intelligent manner to advance manufacturing by Liquid Composite Molding. The approach is to develop, integrate, and implement various tools to advance the manufacturing of ... |
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| Component Composition for Embedded Systems Using Semantic Aspect- Oriented Programming |
OCT 2004 |
266 pages |
| Authors:
Martin Rinard; MASSACHUSETTS INST OF TECH CAMBRIDGE LAB FOR COMPUTER SCIENCE
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| The goal of our research was to develop technologies and techniques in support of real-time systems for the defense community. Our research focused on Real-Time Java implementation and analysis techniques. Real-Time Java is important for the defense community because it holds out the promise of enabling developers to apply COTS Java technology to specialized military embedded systems. It also promises to allow the defense community to utilize a large Java-literate ... |
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| Mechanical Dewatering of Navigation Sediments: Equipment, Bench-Scale Testing, and Fact Sheets |
OCT 2004 |
35 pages |
| Authors:
Trudy J. Estes; J. Waugh; R. L. Schwartz; G. Green; V. Buhr; B. Braddock; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS
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| This technical note provides an overview and technical guidance for evaluating mechanical dewatering at dredged material placement sites. This document introduces the basic pieces of equipment that make up a dewatering circuit or train, some advantages and disadvantages of different equipment options, the state of the practice in bench-scale testing, discussions of performance specifications and cost, and several fact sheets on various process technologies and their applications. |
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| The BioFlip Microcytometer |
10 SEP 2004 |
44 pages |
| Authors:
Aravind Padmanabhan; HONEYWELL INC PLYMOUTH MN
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| This four-year program successfully demonstrated a point-of-care (POC) integrated scattering and fluorescence flow cytometer capable of counting and classifying white blood cells from a whole-blood sample input. The instrument development and overall system testing tasks on this project were performed by Honeywell and the disposable cartridge development was led by Micronics. The revolutionary miniaturization of a cytometer was enabled by the core technology strengths of Honeywell and Micronics. As part ... |
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| Industrial Activities Readiness. Industrial Process Modeling and Optimization |
01 SEP 2004 |
13 pages |
| Authors:
Gary Schanche; Kumar Topudurti; Tom Hartranft; Mike Lin; Alexander Zhirov; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING RESEARCH LAB
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| INDUSTRIAL ACTIVITIES READINESS: (1) Work Package Vision Statement: * Maintain mission critical industrial capability by reducing constraints and improving efficiencies in logistics, manufacturing and maintenance. (2) Capabilities/Products: * Technologies to monitor, control and/or recover hazardous air pollutants (HAP) from Army's plating and surface coating operations and combustion sources. * Energy and material balance modeling of industrial processes for optimum efficiency. * Innovative and cost-effective treatment systems to destroy or remove ... |
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| Industrial Energy and Process Optimization |
01 SEP 2004 |
34 pages |
| Authors:
Alexander M. Zhivov; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING RESEARCH LAB
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| PROBLEM STATEMENT: The current Army Industrial Base consists of facilities and installations that produce ammunition, store munitions, manufacture components, and maintain and overhaul equipment; Many of these facilities and their mechanical and energy systems are beyond their useful life, they were designed with little regard for energy conservation and systems reliability; Specific feature of many Army industrial facilities is that they are operating at significantly reduced production capacities. However, this ... |
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| Software Product Line Adoption Roadmap |
SEP 2004 |
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| Authors:
Linda M. Northrop; CARNEGIE-MELLON UNIV PITTSBURGH PA SOFTWARE ENGINEERING INST
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| The tremendous benefits of taking a software product line approach are well documented. Organizations have achieved significant reductions in cost and time to market and, at the same time, increased the quality of families of their software systems. However, to date, there are considerable barriers to organizational adoption of product line practices and to widespread product line practice. The Carnegie Mellon (Trademark) Software Engineering Institute (SEI) created the Product Line ... |
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| Software Process Improvement and Product Line Practice: Building on Your Process Improvement Infrastructure |
SEP 2004 |
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| Authors:
Lawrence G. Jones; CARNEGIE-MELLON UNIV PITTSBURGH PA SOFTWARE ENGINEERING INST
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| Many organizations with an existing process improvement initiative also are considering a software product line adoption initiative. Managers in these organizations often ask how they can build on their process improvement work and reconcile these two significant change initiatives. This technical note addresses one aspect of this question: how a process improvement infrastructure can provide a foundation for product line adoption. |
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| A Methodology for Doctrine in Modeling and Simulation: Battle Management Language (BML) and the Mission to Means Framework (MMF) |
SEP 2004 |
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| Authors:
Michael Hieb; John Kearley; ALION SCIENCE AND TECHNOLOGY ALEXANDRIAVA
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| In collaboration with the US Army and selected US Naval and US Air Force projects, the Defense Modeling and Simulation Office developed the Missions and Means Framework (MMF - a framework for explicitly specifying the military mission and quantitatively evaluating the mission utility of alternative warfighting Doctrine, Organization, Training, Materiel, Leadership, Personnel, and Facilities (DOTMLPF) services and products.. The MMF provides a disciplined, repeatable procedure for explicitly specifying the mission ... |
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| High Luminance and Efficient GaN:Eu Inorganic EL Devices for Monochromatic Display Applications |
SEP 2004 |
4 pages |
| Authors:
Chanaka Munasinghe; Andrew Steckl; CINCINNATI UNIV OH NANOELECTRONICS LAB
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| In this paper we report GaN:Eu AC-TDEL devices with high luminance and high efficiency levels obtained through optimized phosphor growth techniques and device structure. The GaN:Eu phosphor is grown using interrupted growth epitaxy (IGE[Trademark]). An improved thick dielectric layer (TDEL) for inorganic electroluminescent (EL) display devices has been achieved through a composite high-Kappa dielectric sol-gel/powder route. The reduction in thick dielectric porosity has improved the homogeneity of the electric field ... |
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| Graded Polymer Composites Using Twin Screw Extrusion: A Combinatorial Approach to Developing New Energetic Materials |
Sep-2004 |
41 pages |
| Authors:
Frederick M Gallant; Hugh A Bruck; Suzanne Prickett; Mario Cesarec; MARYLAND UNIV COLLEGE PARK DEPT OF MECHANICAL ENGINEERING
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| The development of new energetic materials is a time-consuming, laborious, and sometimes dangerous process. Batch approaches are most commonly used, especially for energetic materials consisting of polymer composites. Recently, a manufacturing technology known as Twin Screw Extrusion (TSE), has been demonstrated to increase the safety and affordability for manufacturing composite energetic materials. This technology is also ideally suited to manufacturing graded polymer composites through transient operating and/or feed conditions. In ... |
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| Model and Subcomponent Development for a Pulse-Combustor-Driven Microgenerator |
31 AUG 2004 |
76 pages |
| Authors:
Ben T. Zinn; Ari Glezer; Mark G. Allen; Suresh Menon; David Taylor; GEORGIA INST OF TECH ATLANTA
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| This project focused on an investigation of the feasibility of pulse- combustion-based micro heat engines for electrical power generation. The micro heat engines to be studied are based on a reciprocating free piston that is driven by a periodic pulse combustion process, resulting in high levels of integration of the mechanical and electrical functionality of the engine (i.e., the same piston performs both the fuel-to-mechanical energy conversion as well as ... |
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| Numerical Optimization of Multifunctional Components |
17 AUG 2004 |
9 pages |
| Authors:
Anthony T. Patera; MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF MECHANICAL ENGINEERING
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| Engineering components are increasingly complex in composition and structure and increasingly multifunctional. Indeed, it is only through complexity and multifunctionality that the defense industry can satisfy the stringent performance requirements associated with critical defense applications. However, these complex, multifunctional systems no longer admit intuitive analysis of trade-off considerations. Industries must pursue optimization, including optimal choice of material, configuration, and deployment to realize the potential of these new approaches. The essential ... |
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| Implementation of 3D Angular Selective Achromatic Diffraction Optical Grating Device |
10 AUG 2004 |
17 pages |
| Authors:
L. Glebov; V. Smirnov; N. Tabirian; B. Zeldovich; UNIVERSITY OF CENTRAL FLORIDA ORLANDO SCHOOL OF OPTICS/CREOL
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| Angular Selective Achromatic Diffraction Optical Grating (ASADOG) device has been implemented. Surface reflective grating had 1200 lines per mm. Two identical volume holograms were implemented using Photo-Thermo- Refractive (PTR) glass technology, with spatial frequency 1697 lines per mm. Sequential diffraction of incident light by surface grating by first volume grating and then by second one oriented at 90 degrees resulted in angular selection of incident beam, completely achromatic within the ... |
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| Investigation of Quantum Dot Lasers |
09 AUG 2004 |
17 pages |
| Authors:
Pallab Bhattacharya; MICHIGAN UNIV ANN ARBOR DEPT OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE
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| Since the first demonstration of room-temperature operation of self- assembled quantum dot (QD) lasers about a decade ago, there have been great strides in improving the characteristics and performance of these lasers. They currently match or surpass the performance of quantum well lasers. However, there are unique problems that limit the performance of conventional separate confinement heterostructure (SCH) QD lasers compared to what is expected from "ideal" lasers with near ... |
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| Explosive Bonding of Refractory Metal Liners |
AUG 2004 |
42 pages |
| Authors:
William S. De Rosset; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD
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| TPL, Inc. has successfully bonded a pure tantalum liner to the inside of an M242 Bushmaster barrel using a low-detonation- velocity explosive. This report examines the governing equations of the explosive bonding process as they apply to this particular situation. The relevant properties of other higher strength tantalum alloys are examined to see if they are suitable for explosive bonding. with the expectation that they would be better able to ... |
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| Correlation-Based Watermarking Method for Image Authentication Applications |
AUG 2004 |
7 pages |
| Authors:
Farid Ahmed; Ira S. Moskowitz; CATHOLIC UNIV OF AMERICA WASHINGTON DC DEPT OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE
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| We propose a correlation-based digital watermarking technique for robust image pattern authentication. We hide a phase-based signature of the image back into its Fourier magnitude spectrum in the embedding stage. The detector computes the Fourier transform of the watermarked image and extracts the embedded signature. Authentication performance is measured by a correlation test of the extracted signature and the signature computed from the watermarked image. The quality of the watermarked ... |
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| Understanding the Relationships Between Stakeholder Success and Construction Project Characteristics and Technology Use |
AUG 2004 |
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| Authors:
Erik K. Breitenbach; TEXAS UNIV AT AUSTIN
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| Achieving the successful delivery of a project is the goal of every project management team. Because of the multiplicity of personnel involved, a key element of construction project success is stakeholder success. In the final analysis, if a project is to be perceived as successful, then its stakeholders must be satisfied. The cost and schedule performance metrics associated with project success are typically not equally important to all stakeholders and ... |
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| A Combinatorial Parametric Engineering Model for Solid Freeform Fabrication |
AUG 2004 |
9 pages |
| Authors:
Jack C. Boudreaux; NATIONAL INST OF STANDARDS AND TECHNOLOGY GAITHERSBURG MD
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| Fabricated parts are often represented as compact connected smooth 3-manifolds with boundary, where the boundaries consist of compact smooth 2-manifolds. This class of mathematical structures includes topological spaces with enclosed voids and tunnels. Useful information about these structures are coded into level functions (Morse functions) which map points in the 3-manifold onto their height above a fixed plane. By definition, Morse functions are smooth functions, all of whose critical points ... |
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| Development of Nickel-Titanium Graded Composition Components |
AUG 2004 |
14 pages |
| Authors:
M. S. Domack; J. M. Baughman; NATIONAL AERONAUTICS AND SPACE ADMINISTRATION HAMPTON VA LANGLEY RESEARCH CENTER
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| The potential of various manufacturing methods was evaluated for producing nickel-titanium graded composition material. The selected test case examined attachment brackets that join nickel-based metallic thermal protection systems to titanium-based launch vehicle structure. The proposed application would replace nickel-based components with graded composition components in an effort to alleviate service induced thermal stresses. Demonstration samples were produced by laser direct metal deposition, flat wire welding, and ultrasonic consolidation. Microstructure, general ... |
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Mfg & Industrial Eng & Control of Product Sys
