| A Nonparametric Approach to Segmentation of Ladar Images |
Dec 2012 |
160 pages |
| Authors:
Eric A Buschelman; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF ENGINEERING AND MANAGEMENT
|
 | The advent of advanced laser radar (ladar) systems that record full-waveform signal data has inspired numerous inquisitions which aspire to extract additional, previously unavailable, information about the illuminated scene from the collected data. The quality of the information, however, is often related to the limitations of the ladar camera used to collect the data. This research project uses full-waveform analysis of ladar signals, and basic principles of optics, to propose ... |
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| Force Protection - Basing TeCD 1a |
17 Oct 2012 |
9 pages |
| Authors:
Pamela Kinnebrew; Jr Brooks Joseph A; ARMY CORPS OF ENGINEERS VICKSBURG MS ENGINEER RESEARCH AND DEVELOPMENT CENTER
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| Problem Statement: It takes too long and too much manpower to deploy, set up, protect, sustain and relocate Combat Outposts (COPs) and Patrol Bases (PBs). Challenge: Formulate a S&T program to reduce the percentage of Soldiers needed to set-up a COP/PB and protect against threats (including small arms, indirect fires, air delivered weapons, and CBE) in austere, restricted terrains. |
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| A Misapplied and Overextended Example: Gen J. N. Mattis's Criticism of Effects-Based Operations |
Oct 2012 |
15 pages |
| Authors:
Dag Henriksen; AIR FORCE RESEARCH LAB MAXWELL AFB AL
|
| Both General Mattis s USJFCOM Commander s Guidance for Effects- Based Operations and his memorandum for US Joint Forces Command (14 August 2008), which includes that guidance, focus on the concept of EBO. In the former, Mattis spends half a page on Israel s 2006 campaign to underline his point that EBO is a flawed concept that in effect impedes the development and conduct of joint operations.4 Although he mentions ... |
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| Maintaining Interoperability in a Target-Rich Environment |
Sep 2012 |
140 pages |
| Authors:
Mei L Ng; NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF SYSTEMS ENGINEERING
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| Achieving interoperability in a net-centric environment is fundamental to maximizing the potential of information sharing and effective use of resources in military operations. With the increasing reliance on unmanned platforms worldwide, there is a need to study the limitations of existing Command and Control (C2) Systems in dealing with the increasing number of objects in the operational environment. More C2 system processing power will be required in the future to ... |
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| Context-Based Mobile Security Enclave |
Sep 2012 |
63 pages |
| Authors:
Joey C Carter; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
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| Currently, there are no secure access control methods of controlling restricted material access on a mobile device using context-based authentication methods. Simple challenge/response protocols do not provide the security required for some restricted information. A lost/misplaced device or compromised password can easily lead to the compromise of any restricted information to which the device may have access. Due to the inherent portability of a mobile device, a broader, more comprehensive ... |
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| Detection of Non-hazardous, Fluorescent Ricin-B Via an Immunoassay on Simulated Plastic Wings |
Sep 2012 |
18 pages |
| Authors:
Glenn Beatty; Asha Hall; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD VEHICLE TECHNOLOGY DIRECTORATE
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| As a schedule 1 controlled substance, ricin is one of the deadliest plant toxins in existence, and also one of the most easily weaponizable. This combination has resulted in a recent surge of studies proposing new and improved methods of detecting ricin, primarily involving aqueous phase immunoassays. Successive methods report higher binding affinities and correspondingly lower detection limits, but little research has addressed the potential for new modes of implementation, ... |
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| Growth Stress in Si02 Formed by Oxidation of SiC (Preprint) |
Jul 2012 |
8 pages |
| Authors:
Randall S Hay; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH MATERIALS AND MANUFACTURING DIRECTORATE
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| Growth stresses in amorphous SiO2 scales formed during SiC fiber oxidation were calculated. A numerical method using Deal-Grove oxidation kinetics and shear-stress dependent SiO2 viscosity was used. Initial compressive stresses in SiO2 of 25 GPa from the 2.2? oxidation volume expansion rapidly relaxes. At 1200?, viscous flow of amorphous SiO2 further relaxes stress to negligible levels. At 700? - 900?C, axial and hoop stress at the GPa level persist in ... |
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| China's Demographic Limits to Economic Growth |
Jun 2012 |
95 pages |
| Authors:
David M Truesdell; NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF NATIONAL SECURITY AFFAIRS
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| China's demographic transition will create great difficulty in continuing the scale of economic development seen over the last 30 years. This difficulty will be experienced through the costs of the demographic detour, which began during the Great Leap Forward and was then magnified through the birth limiting campaigns up to and including the One-Child Policy. While the skewing of the dependency ratio over the last 30 years resulted in significant ... |
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| The Effect of Shipboard Design Decisions in Amphibious Warfare |
Jun 2012 |
137 pages |
| Authors:
Jessica L Poniatoski; NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF INFORMATION SCIENCES
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| Recently, a major decision was made by the Navy to eliminate a key capability from the future ship of the amphibious fleet. The removal of the well deck from the future LHA (R) amphibious assault ship is attempting to change the way the Navy and Marine Corps have conducted amphibious operations over the past several decades. This thesis will develop equations to quantitatively analyze the lift capabilities associated with changing ... |
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| Information Extraction Using Controlled English to Support Knowledge-Sharing and Decision-Making |
Jun 2012 |
35 pages |
| Authors:
Ping Xue; Stephen Poteet; Anne Kao; David Mott; Dave Braines; Cheryl Giammanco; TIEN PHAM; BOEING CO SEATTLE WA RESEARCH AND TECHNOLOGY
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| Current and future coalition operations involve multi-team and/or multi-nation collaborations. While large volumes of structured/unstructured data are often available, improvement of data access, information extraction, and knowledge sharing is critically important but remains a major challenge for effective and efficient C2 operations. In this paper, we propose an approach to information extraction using International Technology Alliance Controlled English (CE) to improve fact extraction and knowledge sharing, aiming to enhance situation ... |
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| Defense Infrastructure: DOD Can Improve Its Response to Environmental Exposures on Military Installations |
May 2012 |
72 pages |
| Authors:
Brian J Lepore; David C Trimble; Diane Raynes; Mark J Wielgoszynski; Shawn Arbogast; Elizabeth Beardsley; Marissa Dondoe; Laurie Ellington; Dani Greene; Joanne Landesman; GOVERNMENT ACCOUNTABILITY OFFICE WASHINGTON DC
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| There have been various reported incidents of individuals being potentially exposed to environmental hazards while on military installations. Indeed, some incidents, such as contaminated air due to burn pits in Afghanistan and Iraq and contaminated water at Camp Lejeune, North Carolina, have received considerable attention, and in the case of Camp Lejeune have resulted in claims seeking billions of dollars from the government. Public Law 111-383, Section 314(2011) directed GAO ... |
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| TEMTADS Adjunct Sensor Systems Hand-Held EMI Sensor for Cued UXO Discrimination (ESTCP MR-200807) and Man-Portable EMI Array for UXO Detection and Discrimination (ESTCP MR-200909) |
05 Apr 2012 |
80 pages |
| Authors:
James B Kingdon; Bruce J Barrow; Thomas H Bell; David C George; Glenn R Harbaugh; Daniel A Steinhurst; NAVAL RESEARCH LAB WASHINGTON DC CHEMICAL DYNAMICS AND DIAGNOSTICS BRANCH
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| Man-portable (MP) and Hand-held (HH) adjuncts of the NRL TEMTADS 5 5 array were constructed and the UXO classification performance of each characterized. Both systems are based on the transient electromagnetic induction (TEM) sensor technology that was developed for the NRL TEMTADS 5 5 array. Both systems are designed to be deployable in increasingly inaccessible areas where vehicle-towed sensor arrays cannot be used. Demonstration results for the MP system indicated ... |
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| FY 2011 External Reviews of the Quality Control Systems of the Military Department Audit Agencies |
02 Apr 2012 |
8 pages |
| Authors:
Randolph R Stone; DEPARTMENT OF DEFENSE ALEXANDRIA VA OFFICE OF THE INSPECTOR GENERAL
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| Section 8 (c) (6) of the Inspector General Act of 1978, as amended, requires the Inspector General of the Department of Defense to monitor and evaluate the adherence of Defense auditors to internal audit, contract audit, and internal review principles, policies, and procedures. Generally accepted government auditing standards (GAGAS) issued by the Comptroller General of the United States require that organizations conducting government audits and/or attestation engagements have an appropriate ... |
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| Defense Acquisitions: Further Actions Needed to Improve Accountability for DOD's Inventory of Contracted Services |
Apr 2012 |
45 pages |
| Authors:
John P Hutton; Cary B Russell; Timothy DiNapoli; MacKenzie Cooper; Julia Kennon; John Krump; Angie Nichols-Friedman; Guisseli Reyes-Turnell; GOVERNMENT ACCOUNTABILITY OFFICE WASHINGTON DC
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| DoD relies on contractors to perform many functions, which can offer benefits for DoD. GAO's work has shown that reliance on contractors to support core missions, however, can place DoD at risk of contractors performing inherently governmental functions. In 2008, Congress required DoD to compile and review an annual inventory of contractors working under contracts for services. The 2010 defense authorization act directed GAO to report for 3 years on ... |
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| Advanced Signal Processing & Classification: UXO Standardized Test Site Data |
Apr 2012 |
94 pages |
| Authors:
Dean Keiswetter; SCIENCE APPLICATIONS INTERNATIONAL CORP SAN DIEGO CA
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| Our objective was to study discrimination capabilities of feature based characterization and classification techniques using standard survey data acquired by others at the UXO Standardized Test Sites in APG and YPG. The fundamental issues investigated included the model used during characterization and the impact that classifier selection has on classification performance. After re-leveling and lagging the EM61 cart data, we inverted anomaly data for each data type using dipole, ellipsoidal, ... |
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| Towards a Fiscally Constrained Pacific Posture |
21 Mar 2012 |
32 pages |
| Authors:
Flay Goodwin; ARMY WAR COLL CARLISLE BARRACKS PA
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| Historically, the United States has adjusted its resource allocation as it emerges from a period of conflict. The Department of Defense has typically seen an average reduction in resources of approximately 30%, in what has been termed a peace dividend. Our current National Military Strategy expresses the intent to maintain a forward presence while pursuing an active engagement strategy. The Pacific area of responsibility will play a key role in ... |
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| Mobility Capabilities: DOD's Mobility Study Limitations and Newly Issued Strategic Guidance Raise Questions about Air Mobility Requirements |
07 Mar 2012 |
15 pages |
| Authors:
Cary Russell; GOVERNMENT ACCOUNTABILITY OFFICE WASHINGTON DC
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| Why GAO Did This Study. Over the past 30 years, the Department of Defense (DOD) has invested more than $140 billion in its airlift and tanker forces. In 2010, DOD published its Mobility Capabilities and Requirements Study 2016 (MCRS-16), which was intended to provide an understanding of the range of mobility capabilities needed for possible military operations. In January 2012, DOD issued new strategic guidance, Sustaining U.S. Global Leadership: Priorities ... |
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| LCS Control Limits: A Modest Proposal |
Mar 2012 |
22 pages |
| Authors:
William H Batschelet; ENVIRONMENTAL PROTECTION AGENCY REGION 8 LAB GOLDEN CO
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| Proposal: Use the TNI / NELAC Fields of Proficiency Testing (FoPT) regression equations to establish laboratory control sample (LCS) control limits. |
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| Probabilistic Analysis of Combinatorial Optimization Problems on Hypergraph Matchings |
Feb 2012 |
59 pages |
| Authors:
Pavlo Krokhmal; IOWA UNIV IOWA CITY
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| This research project was concerned with probabilistic analysis of a class of discrete optimization problems whose underlying combinatorial structure is based on hypergraph matchings. The primary goal of was to provide theoretical insights into characteristic behavior and properties of this class of problems, which would furnish guidelines for development and tuning of solution algorithms, both exact and heuristic, as well as determine amenability of this class of problems to particular ... |
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| Solar Energy Development on Department of Defense Installations in the Mojave and Colorado Deserts |
Jan 2012 |
533 pages |
| Authors:
Robert Kwartin; Sarah Alexander; Martin Anderson; Donald Clark; John Collins; Chris Lamson; Garrett Martin; Ryan Mayfield; Lindsay McAlpine; Daniel Moreno; ICF INTERNATIONAL INC FAIRFAX VA
|
| The study addresses the following issues: (1) Evaluate the technical and economic feasibility of locating solar energy generation within the identified military installations and identify potential areas for solar energy development; (2) Evaluate limitations on the use of solar energy because of military mission, environmental, and jurisdictional constraints; and, (3) Analyze the feasibility and potential for on-installation solar energy generation to provide additional security benefits for the military installations. |
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| Goal-Driven Autonomy for Responding to Unexpected Events in Strategy Simulations |
Jan 2012 |
19 pages |
| Authors:
Matthew Klenk; Matt Molineaux; David W Aha; NAVAL RESEARCH LAB WASHINGTON DC
|
| To operate autonomously in complex environments, an agent must monitor its environment and determine how to respond to new situations. To be considered intelligent, an agent should select actions in pursuit of its goals, and adapt accordingly when its goals need revision. However, most agents assume that their goals are given to them; they cannot recognize when their goals should change. Thus, they have difficulty coping with the complex environments ... |
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| Frictional Torque on a Rotating Disc |
Jan 2012 |
6 pages |
| Authors:
Carl E Mungan; NAVAL ACADEMY ANNAPOLIS MD DEPT OF PHYSICS
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| Resistance to motion often includes a dry frictional term independent of the speed of an object and a fluid drag term varying linearly with speed in the viscous limit. (At higher speeds, quadratic drag can also occur.) Here measurements are performed for an aluminium disc mounted on bearings that is given an initial twist and allowed to spin until it comes to a stop. It is found that a sum ... |
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| Arthropod Surveillance Programs: Basic Components, Strategies, and Analysis |
Jan 2012 |
18 pages |
| Authors:
Lee W Cohnstaedt; Kateryn Rochon; Adrian J Duehl; John F Anderson; Roberto Barrera; Nan-Yao Su; Alec C Gerry; Peter J Obenauer; James F Campbell; Tim J Lysyk; NAVAL MEDICAL RESEARCH UNIT NO 3 CAIRO (EGYPT) DEPT OF MEDICAL ZOOLOGY
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| Effective entomological surveillance planning stresses a careful consideration of methodology, trapping technologies, and analysis techniques. Herein, the basic principles and technological components of arthropod surveillance plans are described, as promoted in the symposium Advancements in arthropod monitoring technology, techniques, and analysis presented at the 58th annual meeting of the Entomological Society of America in San Diego, CA. Interdisciplinary examples of arthropod monitoring for urban, medical, and veterinary applications are reviewed. ... |
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| A Strategy-Based Framework for Accommodating Reductions in the Defense Budget |
Jan 2012 |
65 pages |
| Authors:
Stuart E Johnson; Irv Blickstein; David C Gompert; Charles Nemfakos; Harry J Thie; Michael J McNerney; Duncan Long; Brian McInnis; Amy Potter; RAND NATIONAL DEFENSE RESEARCH INST SANTA MONICA CA
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| This paper suggests an approach for how the Department of Defense (DoD) might execute deep reductions in the defense budget, deep enough that stated defense strategy could not be fully resourced. The cuts examined go beyond the $487 billion announced in January 2012 by Secretary of Defense Leon Panetta. The authors do not argue for or against further reductions. They posit that the ongoing pressure to reduce the federal budget ... |
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| A Qualitative Security Analysis of a New Class of 3-D Integrated Crypto Co-processors |
Jan 2012 |
13 pages |
| Authors:
Jonathan Valamehr; Ted Huffmire; Cynthia Irvine; Ryan Kastner; Cetin K Koc; Timothy Levin; Timothy Sherwood; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| 3-D integration presents many new opportunities for architects and embedded systems designers. However 3-D integration has not yet been explored by the cryptographic hardware community. Traditionally, crypto coprocessors have been implemented as a separate die or by utilizing one or more cores in a chip multiprocessor. These methods have their drawbacks and limitations in terms of tamper-resistance, side-channel immunity and performance. In this work we propose a new class of ... |
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| Linear-Quadratic Control of a MEMS Micromirror using Kalman Filtering |
Dec 2011 |
91 pages |
| Authors:
Jamie P Schnapp; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
|
| The deflection limitations of electrostatic flexure-beam actuators are well known. Specifically, as the beam is actuated and the gap traversed, the restoring force necessary for equilibrium increases proportionally with the displacement to first order, while the electrostatic actuating force increases with the inverse square of the gap. Equilibrium, and thus stable open-loop voltage control, ceases at one-third the total gap distance, leading to actuator snap-in. A Kalman Filter is designed ... |
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| The Role of Generation Volume and Photon Recycling in Transport Imaging of Bulk Materials |
Dec 2011 |
49 pages |
| Authors:
Yoseoph Seo; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
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| The goal of this research was to use Monte Carlo simulations to further develop the model that describes transport imaging by including a more realistic description of the generation region created by the incident electrons. Monte Carlo simulation can be used to determine the energy distribution in bulk materials due to the interaction with incident electrons. In the simulation, the incident electrons undergo both elastic and inelastic scattering events. Through ... |
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| Hybrid Airships for Lift: A New Lift Paradigm and a Pragmatic Assessment of the Vehicle's Key Operational Challenges |
Dec 2011 |
41 pages |
| Authors:
Zachery B Jiron; AIR UNIV MAXWELL AFB AL
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| With its reduced operating costs and point-of-need (PON) delivery ability, the hybrid airship is one lift option that offers promising capabilities to meet the DoD's future logistical challenges throughout the spectrum of conflict. When examining the hybrid airship in this capacity, it is essential for personnel to evaluate the platform through the appropriate framework without dismissing the idea based on inaccurate misconceptions. Establishing a new paradigm, distinct from traditional airlift ... |
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| Standoff Inverse Analysis and Manipulation of Electronic Systems |
31 Oct 2011 |
7 pages |
| Authors:
Michael Steer; NORTH CAROLINA STATE UNIV AT RALEIGH
|
| The vision of SIAMES was to study the interaction between RF fields and electronic circuits, with the ultimate goal of rapid and accurate extraction of system, functional, and device information from external stimulus and monitoring of electronic systems. Basic research was performed in the following areas: (1) Determining the general limitations on the information that can be extracted remotely from general categories of circuits and systems; (2) Formulating theories and ... |
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| New Frameworks for Detecting and Minimizing Information Leakage in Anonymized Network Data |
Oct 2011 |
92 pages |
| Authors:
Fabian Monrose; JOHNS HOPKINS UNIV BALTIMORE MD
|
| The availability of realistic network data plays a significant role in fostering collaboration and ensuring U.S. technical leadership in network security research. Unfortunately, a host of technical, legal, policy, and privacy issues limit the ability of operators to produce data sets for information security testing. In an effort to help overcome these limitations, the Department of Homeland Security (DHS) has endeavored to create a national repository of network traces under ... |
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| Planning for Sustainable Water Supplies for US Army Installations |
Oct 2011 |
15 pages |
| Authors:
Elisabeth Jenicek; CORPS OF ENGINEERS WASHINGTON DC
|
| Even large gains in installation water efficiency will not safeguard supplies for continued use without planning for sustainable water resources regionally. Climate change will exacerbate scarcity in arid regions and affect availability in historically wet regions. Historic water rights are limiting factors for some installations. A holistic approach is needed for achieving energy and water sustainability. The Army should take a proactive approach for installations that will experience the greatest ... |
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| Capturing Lessons That Should be Learned: An After Event Review for Whole-of-Government Security Planning and Operations |
01 Sep 2011 |
12 pages |
| Authors:
Susan McIntyre; Kate Kaminska; DEFENCE RESEARCH AND DEVELOPMENT CANADA OTTAWA (ONTARIO) CENTRE FOR SECURITY SCIENCE
|
| In February 2010, Canada hosted the Vancouver 2010 Winter Games. To ensure a safe and secure games, multiple safety and security agencies at three levels of government worked on security planning and operations in an unprecedented partnership. This whole-of-government approach to domestic safety and security, which often brought together nontraditional partners, provided a unique opportunity to analyze collective strengths and weaknesses and to make suggestions for process improvements in future ... |
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| Iraq and Afghanistan: DOD, State, and USAID Cannot Fully Account for Contracts, Assistance Instruments, and Associated Personnel |
Sep 2011 |
33 pages |
| Authors:
John P Hutton; Johana R Ayers; E B Booth; Virginia Chanley; Julia Kennon; Gilbert Kim; Angie Nichols-Friedman; Anne McDonough-Hughes; Margaret McKenna; Robert Swierczek; GOVERNMENT ACCOUNTABILITY OFFICE WASHINGTON DC
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| DoD, State, and USAID have relied extensively on contracts and assistance instruments (grants and cooperative agreements) for a range of services in Iraq and Afghanistan. In the last 3 years, GAO has provided information on the agencies' contracts, assistance instruments, and associated personnel in the two countries, detailing the agencies' challenges tracking such information. Amendments from the National Defense Authorization Act for Fiscal Year 2011 now require the agencies to ... |
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| Integration of Control Algorithms for Quadrotor UAV's Using an Indoor Sensor Environment |
Sep 2011 |
65 pages |
| Authors:
Bryan D Watts; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| This thesis develops an architecture that facilitates the design and indoor testing of control algorithms implemented onboard quadrotor UAV's using an ultra-wideband (UWB) indoor positioning solution from Ubisense. Initially, details are provided on basic quadrotor dynamics, the setup of the indoor sensor environment, and the communication scheme. A thorough analysis is conducted on the accuracy and estimation lag of Ubisense UWB sensors for providing indoor position information to the quadrotor. ... |
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| Application of the Terrestar Satellite Constellation to the Global Initiative for Tracking Special and Nonproliferation Material |
Sep 2011 |
101 pages |
| Authors:
Richard M Camarena; Andrew L Carcich; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| In an era distinguished by innovative communication technologies capable of linking with geosynchronous satellites, while being small enough to fit into a pocket of clothing, the modern battlefield commander and warfighter can know the precise location of surrounding friendly forces. This concept of communication involving satellites provides for a new tier of situational awareness in combat and noncombat environments, dating as far back as the Persian Gulf War. This tool ... |
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| TCAD Analysis of Heating and Maximum Current Density in Carbon Nanofiber Interconnects |
Sep 2011 |
87 pages |
| Authors:
Jason A Brunton; NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
| As devices shrink, the current density through interconnects increases proportionally making new materials a necessity for industry growth. Carbon nanofiber (CNF) and carbon nanotube's (CNT) potential for high current density make them a possible replacement for metal contacts. Learning the limitations of CNFs and CNTs is important if they are to be used in next-generation electronics. As current density increases, heat is generated throughout the CNF structure. This heating eventually ... |
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| Single-cycle Pulse Synthesis by Coherent Superposition of Ultra-broadband Optical Parametric Amplifiers |
AUG 2011 |
45 pages |
| Authors:
Giulio Cerullo; POLITECNICO DI MILANO (ITALY)
|
| Ultrafast optical science has experienced major breakthroughs in the last years, driven by two main accomplishments: (i) generation of light pulses with duration of just a few cycles of the optical carrier wave; (ii) control of the carrier-envelope phase (CEP) of light pulses, enabling the production of optical waveforms with reproducible electric field. The generation of extremely short light pulses with controlled CEP allows exploring new frontiers of light-matter interaction, ... |
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| The Association Between Suicide and OEF/OIF Deployment History |
Aug 2011 |
8 pages |
| Authors:
Mark Reger; GENEVA FOUNDATION LAKEWOOD WA
|
| One of the most important questions in military suicide research at this time is whether deployment in support of Operations Iraqi or Enduring Freedom (OIF/OEF) is associated with an increased risk of suicide. The equivocal research conducted to date on this topic creates a confusing picture for military senior leaders and the American public. The Report of the Blue Ribbon Workgroup on Suicide Prevention in the Veteran Population (Peake, 2008) ... |
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| Site Diversity Considerations for V/W Band Satellite Communications |
Aug 2011 |
9 pages |
| Authors:
George Brost; William Cook; William Lipe; AIR FORCE RESEARCH LAB ROME NY
|
| This paper examines the potential of using site diversity to mitigate fade associated with V/W band satellite communications. Site diversity based on a log-normal distribution for rain attenuation is applied. Limitations due to cloud attenuation are considered. The site diversity methodology is extended to include cloud attenuation. |
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| C-5 Corrosion Program 2011 |
Aug 2011 |
40 pages |
| Authors:
Dan McTish; LOCKHEED MARTIN AERONAUTICS CO PINELLAS PARK FL
|
| Presentation Overview: Corrosion Program Team, Corrosion Control Website, Corrosion Program Concerns, Non-Chrome Paint System Evaluations, Coatings for Abrasion Protection, Plastic Media Blasting for Paint Removal, Material Changes to Resolve Corrosion and SCC Issues, Aircraft Wash Procedure Development, Av-Dec Tape/Gasket Usage, Lavatory Modification to Resolve Leaks, Structural Grind-Out Limitations for Surface Corrosion, Structural Bonding Process and Certification, CPC Usage, C-5M Refurbishment and Anti-Skid Removal Evaluation. |
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| Epitaxial Nucleation on Rationally Designed Peptide Functionalized Interface |
19 Jul 2011 |
16 pages |
| Authors:
Raymond Tu; CITY COLL NEW YORK
|
| Over the course of the grant period we have applied a set of rationally designed interfacially confined peptides to explore the cooperative relationship between self-assembly and hybrid materials processing. This research report highlights our ability to apply the dynamics of surface active peptides to simultaneously control structure at two length scales, (1) the length scale associated with a fibrous peptide supramolecular assembly and (2) the length scale associated with a ... |
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| Characterization of Fatigue Crack-Inititation Facets in Relation to Lifetime Variablility in Ti-6Al-4V (Preprint) |
Jul 2011 |
|
| Authors:
Patrick Golden; Reji John; Sushant Jha; Christopher Szczepanski; III Porter William; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH MATERIALS AND MANUFACTURING DIRECTORATE
|
| An analysis of fatigue crack-initiation facets from the perspective of variability in lifetime of a duplex microstructure of Ti-6Al-4V is presented. Fatigue variability behavior of this alloy was marked by an increase in the lifetime variability to almost three orders in magnitude as the stress level was decreased. Crack initiation was found to occur primarily from the specimen surface with only a few exceptions where subsurface initiation was recorded. In ... |
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| Review of Current Aided/Automatic Target Acquisition Technology for Military Target Acquisition Tasks |
Jul 2011 |
10 pages |
| Authors:
James A Ratches; ARMY RESEARCH LAB ADELPHI MD
|
| Aided and automatic target recognition (Ai/ATR) capability is a critical technology needed by the military services for modern combat. However, the current level of performance that is available is largely deficient compared to the requirements. This is largely due to the difficulty of acquiring targets in realistic environments but has also been due to the difficulty in getting new concepts from, for example, the academic community, due to limitations for ... |
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| Improving Memory for Optimization and Learning in Dynamic Environments |
Jul 2011 |
175 pages |
| Authors:
Gregory J Barlow; CARNEGIE-MELLON UNIV PITTSBURGH PA ROBOTICS INST
|
| Many problems considered in optimization and artificial intelligence research are static: information about the problem is known a priori, and little to no uncertainty about this information is presumed to exist. Most real problems, however, are dynamic: information about the problem is released over time, uncertain events may occur, or the requirements of the problem may change as time passes. One technique for improving optimization and learning in dynamic environments ... |
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| Supervised Learning in CINets |
Jul 2011 |
9 pages |
| Authors:
Paul Bruhn; Jeffrey Weinschenk; PENNSYLVANIA STATE UNIV STATE COLLEGE APPLIED RESEARCH LAB
|
| Continuous Inference Networks (CINets), a form of multilayer fuzzy value networks allow computation with fuzzy values in concise structures, are capable of universal function approximation, and are readily interpretable through natural language, aiding maintenance modification, collaboration, and knowledge sharing. However CINets have been reliant on Subject Matter Expertise (SME) and manual tuning to realize optimal performance, limiting their applicability. With ONR support[i], ARL has developed a supervised learning process for ... |
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| Consolidated National Intelligence Centers: The Potential Impact on the Efficiency and Effectiveness of America's National Intelligence Community |
10 JUN 2011 |
145 pages |
| Authors:
Andrew R. Ries; ARMY COMMAND AND GENERAL STAFF COLL FORT LEAVENWORTH KS
|
| This thesis examined the suitability of creating regionally and functionally aligned National Intelligence Centers to consolidate the foreign intelligence collection and analysis capabilities of America's intelligence community. It assessed the functional limits of intelligence consolidation by proposing a theoretical model that departed significantly from the largely decentralized community framework in existence since 1947. Research focused on official studies and community literature that specifically addressed the potential impacts of consolidation. Interviews ... |
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| Low-Level Analytical Methodology Updates to Support Decontaminant Performance Evaluations |
JUN 2011 |
365 pages |
| Authors:
Matthew Shue; Teri Lalain; Brent Mantooth; Pamela Humphreys; Morgan Hall; Phil Smith; Michelle Sheahy; ARMY EDGEWOOD CHEMICAL BIOLOGICAL CENTER APG MD RESEARCH AND TECHNOLOGY DIR
|
| Project CA06DEC407 was a DTRA-funded effort designed to address the challenges associated with quantifying low-level residual agent to support decontaminant contact- and vapor-test evaluations. The program had three main objectives that were successfully accomplished. The primary program objective was to develop improved analytical methods for the confident detection of low levels of agents VX, HD, and GD at published requirement levels. The lowest requirements used at the time of this ... |
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| Civil & Military Operations: Evolutionary Prep Steps to Pass Smart Power Current Limitations |
JUN 2011 |
42 pages |
| Authors:
Russell E. Bryant; PROGRAM EXECUTIVE OFFICE INTEGRATED WARFARE SYSTEMS WASHINGTON DC
|
| Precision engagement during the last several decades has been an area of much analysis, research and technical application. Yet, those investments, like similar efforts through other research and knowledge application efforts could be considered rather narrow in their application and approach. When considering the PMESII1 and DIME1 environments, along with the broad applications of EBO1, and the ongoing discussions of "smart power" applications, there is almost a sense of deja ... |
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| Transformational Acoustics Applied to Scattering from a Thin Elastic Shell |
JUN 2011 |
85 pages |
| Authors:
Ana M. Vieira; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
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| We investigate the behavior of acoustic cloaks and design an acoustic cloak applied to a thin spherical shell. We begin by examining the acoustic pressure field scattered from a spherical object, consider limiting impedance situations for a homogeneous sphere, and a thin shell. The second part of this thesis is focused on acoustic cloaking theory. Our research in this area concentrated on the application of the transformational acoustics method as ... |
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| Market-Smart Deconstruction and Material Recovery at Brownfield Sites: How to Identify and Reuse Existing Materials Found at Brownfield Sites |
Jun 2011 |
131 pages |
| Authors:
Annette L Stumpf; Samuel L Hunter; Susan J Bevelheimer; Stephen D Cosper; Thomas R Napier; Giselle Rodriguez; Gary L Gerdes; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING RESEARCH LAB
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| As a member of the Federal Brownfields Partnership, the US Army Corps of Engineers supports the US Environmental Protection Agency and its brownfields grantees in their efforts to assess, remediate, and sustainably reuse brownfields. This project is based on the premise that communities have finite resources and that the sustainable practices of deconstruction and recycling/reuse can provide them with much needed economic and environmental benefits. The objective of this work ... |
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