| Alternative Disaster Feeding Ration |
08 Jun 2012 |
73 pages |
| Authors:
George W Rollinson; ARMY COMMAND AND GENERAL STAFF COLL FORT LEAVENWORTH KS
|
 | FEMA and USAID could more efficiently provide feeding rations during Humanitarian Assistance/Disaster Relief (HA/DRs) operations by using high-calorie survival bars in lieu of MREs and HDRs, thus saving time, money, and resources. The Department of Defense (DoD) and the Department of Homeland Security (DHS) primarily use Meals Ready to Eat (MREs) and Humanitarian Daily Rations (HDRs) for foreign and domestic humanitarian disaster response operations. These rations are costly and logistically ... |
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| The Hierarchy of Fatigue Mechanisms in the Long Lifetime Regime (Preprint) |
Oct 2011 |
8 pages |
| Authors:
C J Szczepanski; C P Przybyla; J M Larsen; S K Jha; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH MATERIALS AND MANUFACTURING DIR METALS CERAMICS AND NONDESTRUCTIVE EVALUATION DIV/METALS BRANCH
|
| The primary factors governing the behavior in the long lifetime regime of turbine engine materials are discussed. These factors are based on a study of fatigue lifetime distributions and underlying mechanisms in a number of materials, including titanium alloys, nickel-base superalloys, and gamma TiAl based alloys. A hypothesis of fatigue variability is described, and appears to explain the various features of fatigue behavior seen in the HCF and VHCF regimes. ... |
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| Lithium Ion Vehicle Start Batteries - Power for the Future |
09 AUG 2011 |
5 pages |
| Authors:
Mike Marcel; Les Alexander; Tony Knakal; Bailey Fagan; A123 SYSTEMS INC ANN ARBOR MI
|
| Vehicles on today's battlefield need batteries for more than just starting, lighting and ignition (SLI) loads. Power requirements and the need to provide this power during silent watch scenarios have been steadily increasing as modern vehicles use increasingly more sophisticated communications and other vetronics systems. Along with this need for more power is a need to communicate to the warfighter the state of their vehicle batteries. Battery management that provides ... |
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| Integrated Training Solutions: An Effective Tool to Synchronize People and Maintenance |
Aug 2011 |
15 pages |
| Authors:
Maurice Hartey; Arlene M Korn; Kevin P Kennedy; NAVAL SHIP SYSTEMS ENGINEERING STATION PHILADELPHIA PA
|
| Operating and maintaining today's ships in an efficient, safe, and cost-effective manner in the face of manning reductions and dwindling budgets requires well-planned and integrated training solutions. This paper focuses on the positive outcomes of training and how it contributes to reducing Total Ownership Cost (TOC). An effective training program will enhance material readiness and reduce TOC by educating personnel to understand and recognize the importance of maintenance and its ... |
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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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| Spin-Precession Organic Magnetic Sensor |
JUN 2011 |
12 pages |
| Authors:
Srini Krishnamurthy; SRI INTERNATIONAL MENLO PARK CA
|
| This report consists of two parts--results from La0.7Sr0..3MnO3 (LSMO) studies carried out in collaboration with the University of Delaware (UD) and the University of California at Riverside (UCR); and results from CoFe50Al25Si25 (CFAS) studies carried out in collaboration with Arizona State University (ASU)--both conducted under ONR Contract (N00014-09-C- 0292). The objective of the project is to develop an ultrasensitive magnetic sensor for room temperature operation. The requirements are (a) half-metallic ... |
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| Role of Obesity in Prostate Cancer Development |
01 APR 2011 |
29 pages |
| Authors:
Margot Cleary; MINNESOTA UNIV MINNEAPOLIS
|
| Prospective epidemiological studies suggest that obesity increases the risk for prostate cancer. Also, mortality from prostate cancer is increased with elevated body weights and several recent studies have indicated that obesity was reported to be associated with higher prostate cancer grade at diagnosis. However, it is difficult in human studies to adequately assess effects of body weight and/or the effects of body weight change at specific ages on prostate cancer ... |
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| Long Life, Low Power, Multi-Cell Battery |
28 OCT 2010 |
36 pages |
| Authors:
Steve Simon; Victor Lifton; MPHASE TECHNOLOGIES LITTLE FALLS NJ
|
| This award was based on the successful results of a Phase 1 STTR award to continue with the development of a small footprint, reserve style lithium based arrayed battery containing more than one cell that can be individually addressed, and that can provide long storage life and long term power for continuous use in powering micro electronic devices. The enclosed report encompasses the work performed by the team from through ... |
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| Development of the HH-60 Fuel Probe Container |
23-Nov-2009 |
52 pages |
| Authors:
Michael R Harff; Susan J Evans; AIR FORCE PACKAGING TECHNOLOGY AND ENGINEERING FACILITY WRIGHT-PATTERSON AFB OH
|
| The Air Force Packaging Technology Engineering Facility (AFPTEF) was tasked with the design of a new shipping and storage container for the HH-60 Fuel Probe in April of 2009. The current wood container is difficult to handle, falls apart easily, provides minimal physical protection of the item, and offers no environmental protection against corrosion. To solve these issues AFPTEF used proven design techniques IAW SAE ARP1967A to develop an aluminum, ... |
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| Development of the MQ-9 Reaper Wings Container |
03 JUN 2008 |
40 pages |
| Authors:
Matthew P. Bozzuto; Susan J. Evans; AIR FORCE PACKAGING TECHNOLOGY AND ENGINEERING FACILITY WRIGHT-PATTERSON AFB OH
|
| The Air Force Packaging Technology & Engineering Facility (AFPTEF) was tasked with the design of a new shipping and storage container for the MQ-9 Reaper wings in March of 2006. The previous container did not adequately satisfy user needs and Air Force requirements. A main problem was that it was designed for an MQ-9 Reaper fuselage, wings, and tails combined, which exceeded the 10,000 lb Air Force requirement for available ... |
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| Creep-Rupture and Fatigue Behavior of a Notched Oxide/Oxide Ceramic Matrix Composite at Elevated Temperature |
JUN 2008 |
116 pages |
| Authors:
Barth H. Boyer; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF ENGINEERING AND MANAGEMENT
|
| The inherent resistance to oxidation of oxide/oxide ceramic matrix composites makes them ideal for aerospace applications that require high temperature and long life under corrosive environments. The ceramic matrix composite (CMC) of interest in the study is the Nextel (tm) 720/Alumina (N720/A) which is comprised of an 8-harness satin weave of Nextel (tm) fibers embedded in an alumina matrix. One of the top applications for N720/A is in the combustion ... |
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| Development of the MQ-9 Reaper Fuselage Container |
20 MAY 2008 |
36 pages |
| Authors:
Matthew P. Bozzuto; Susan J. Evans; AIR FORCE PACKAGING TECHNOLOGY AND ENGINEERING FACILITY WRIGHT-PATTERSON AFB OH
|
| The Air Force Packaging Technology & Engineering Facility (AFPTEF) was tasked with the design of a new shipping and storage container for the MQ-9 Reaper fuselage in March of 2006. The previous container did not adequately satisfy user needs and Air Force requirements. A main problem was that it was designed for an MQ-9 Reaper fuselage, wings, and tails combined, which exceeded the 10,000 lb Air Force requirement for available ... |
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| Long Life Durability of Electrodes of Electrical Resistance Change Method for Damage Monitoring of CFRP Composite Structures |
01-Mar-2008 |
16 pages |
| Authors:
Akira Todoroki; TOKYO INST OF TECH (JAPAN) DEPT OF MECHANICAL ENGINEERING
|
| Investigated the applicability of the electrical resistance change method through experiments of CFRP laminates [16-18]. Instead of using two or four electrodes, this research adopted multiple electrodes mounted on the surface of the target structure to identify delamination location and dimension. Orthotropic electric conductivity was also measured experimentally for three types of fiber volume fractions, and the paper revealed that electric conductivity in thickness direction of CFRP was approximately one ... |
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| Development of the MQ-9 Reaper Propeller Container |
21 FEB 2008 |
42 pages |
| Authors:
Joel A. Sullivan; Susan J. Evans; AIR FORCE PACKAGING TECHNOLOGY AND ENGINEERING FACILITY WRIGHT-PATTERSON AFB OH
|
| The Air Force Packaging Technology Engineering Facility (AFPTEF) was tasked with the design of a new shipping and storage container for the MQ-9 Reaper Propeller in March of 2006. The new container is designed to replace the fiberglass container currently used. The current container provides minimal shock protection and being fiberglass is susceptible to deformation, delamination, and extreme temperatures. Additionally, the fiberglass container can not house the propeller and spinner ... |
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| Experimental Study of the Mini-Helicon Thruster |
Feb-2008 |
81 pages |
| Authors:
Jean-Luc Cambier; Oleg Batishchev; MASSACHUSETTS INST OF TECH CAMBRIDGE SPACE PROPULSION LAB
|
| An experimental program to develop and test a mini-helicon thruster is described. The helicon discharge was designed and built in several different configurations using low- and high-current electromagnets. The program was designed to address several objectives: (i) to achieve a high coupling of RF-power to plasma and efficient acceleration to 20km/sec; (ii) to evaluate the scaling relations between power density, flow rates and B-field strength; (iii) to demonstrate operation with ... |
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| Dual Mechanism Nonlinear Response of Selected Metal Organic Chromophores |
01 OCT 2007 |
146 pages |
| Authors:
John D. Peak; FLORIDA UNIV GAINESVILLE
|
| 13 The goal for the research described herein is the development of a series of transition metal based metal organic chromophores that display both two-photon and excited state absorption (TPA/ESA) character. With this goal in mind, we present the preparation and photophysical characterization for a series of metal-organic chromophores containing a two photon absorbing bipyridine core combined with a transition metal component which yields a long-lived triplet excited state. The ... |
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| High Efficiency and Long Life Photovoltaic Research for Space Applications |
05 JUL 2007 |
12 pages |
| Authors:
Wei-Fang Su; NATIONAL TAIWAN UNIV TAIPEI (TAIWAN) DEPT OF MATERIALS SCIENCE AND ENGINEERING
|
| We have developed a tree-like nanostructured photovoltaic device based on the polymer poly"3-hexylthiophene""P3HT"/metal oxide hybrid materials by solution processes at low temperature. An array of large ZnO nanorods with a larger size of 50 nm in diameter and 150 nm in length are grown to act as tree trunks for efficient charge collection. Small TiO2 nanorods with a size of 5 nm in diameter and 20 nm in length are ... |
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| Random Heterogeneity Scales and Probabilistic Description of the Long-Lifetime Regime of Fatigue (Preprint) |
01-Jun-2007 |
14 pages |
| Authors:
S K Jha; James M Larsen; UNIVERSAL TECHNOLOGY CORP DAYTON OH
|
| The long-lifetime fatigue regime is suggested to be a probabilistic realization of sequentially occurring mechanisms. We associate these mechanisms with the development of a ranking of heterogeneity scales in the material, with decreasing probability of occurrence in the order of increasing scale, at any given loading condition. The underlying drivers for these heterogeneity levels are an array of randomly occurring microstructural configurations. With respect to the alpha-beta titanium alloy, Ti-6Al-2Sn-4Zr-6Mo ... |
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| Experimental and Numerical Investigations of RP-2 Under High Heat Fluxes |
MAY 2007 |
32 pages |
| Authors:
M. C. Billingsley; H. Y. Lyu; R. W. Bates; AIR FORCE RESEARCH LAB EDWARDS AFB CA PROPULSION DIRECTORATE
|
| Interest in developing reusable, long-life, liquid hydrocarbon fueled rocket engines has continued to grow in recent years. Of critical importance in designing and developing an engine with these characteristics is of course the fuel and its impact on potential cooling schemes. For several years now, the Air Force Research Laboratory Propulsion Directorate has been developing the capability to examine the thermal performance of newly emerging petroleum distillate fuels such as ... |
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| Development of the C-17 - Main Landing Gear Post Container, CNU-677/E |
APR 2007 |
45 pages |
| Authors:
Matthew P. Bozzuto; Susan J. Evans; AIR FORCE PACKAGING TECHNOLOGY AND ENGINEERING FACILITY WRIGHT-PATTERSON AFB OH
|
| The Air Force Packaging Technology Engineering Facility (AFPTEF) was tasked with the design of a new shipping and storage container for the C-17 MLG Post in March of 2004. The new container is designed to replace the wood container that was previously used. The main problem with the wood design was corrosion due to inadequate environmental control and protection. In addition, there were two different container configurations to accommodate a ... |
|
| Platinum Acetylide Two-Photon Chromophores (Preprint) |
APR 2007 |
62 pages |
| Authors:
Aaron R. Burke; Thomas M. Cooper; Joy E. Rogers; Jonathan E. Slagle; Douglas M. Krein; Benjamin C. Hall; Albert Fratini; Daniel G. McLean; UNIVERSAL ENERGY SYSTEMS INC DAYTON OH HUMAN FACTORS DIV
|
| To explore the photophysics of platinum acetylide chromopores having strong two photon cross section, we have investigated the synthesis and spectroscopic characterization of a series of platinum acetylide complexes that feature highly π-conjugated ligands substituted with π-donor or ?acceptor moieties. The molecules (numbered 1-4) considered in the present work are NLO-functionalized analogs of bis(phenylethynyl)bis(bributylphosphine)platinum(II) complexes. Molecule 1 carries two benzothiazolylfluorene and molecule 2 carries two diphenylaminofluorene substituents bound to the ... |
|
| Orcas in Puget Sound |
JAN 2007 |
31 pages |
| Authors:
Birgit Kriete; CORPS OF ENGINEERS SEATTLE WA SEATTLE DISTRICT
|
| Ecologically, economically and recreationally, southern resident and transient killer whales have become greatly important to the nearshore environment of Puget Sound. Economically, whale watching in the San Juan Islands alone has become a $10 million industry in the last few years. The stock of southern resident killer whales (SRKW) in the eastern North Pacific declined by almost 20% in a five-year period to fewer than 80 individuals in 2001. These ... |
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| Platinum Acetylide Two-Photon Chromophores (Postprint) |
2007 |
16 pages |
| Authors:
Paul A. Fleitz; Thomas M. Cooper; Joy E. Rogers; Jonathan E. Slagle; Aaron R. Burke; Douglas M. Krein; Benjamin C. Hall; Albert Fratini; Daniel G. McLean; UES INC DAYTON OH
|
| To explore the photophysics of platinum acetylide chromopores having strong two-photon absorption cross-sections, we have investigated the synthesis and spectroscopic characterization of a series of platinum acetylide complexes that feature highly π-conjugated ligands substituted with π-donor or ?acceptor moieties. The molecules (numbered 1-4) considered in the present work are NLO-functionalized analogs of bis(phenylethynyl)bis(bributylphosphine)platinum(II) complexes. Molecule 1 carries two benzothiazolylfluorene and molecule 2 carries two diphenylaminofluorene substituents bound to the central ... |
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| Microscale Power Generation Based on Radiolytic Processes (Preprint) |
DEC 2006 |
6 pages |
| Authors:
Richard B. Peterson; Brian K. Paul; Todd Palmer; Qiao Wu; William Jost; Chih-Heng T. Tseng; Santosh Tiwari; Gertrude Patello; Edgar C. Buck; Jamelyn D. Holladay; OREGON STATE UNIV CORVALLIS
|
| Oregon State University, Battelle Pacific Northwest Division, and Case Western Reserve University have been investigating nuclear-to-electric power generation utilizing a technique based on closed cycle fuel cell operation. The approach being developed is to first use the decay energy of a radioisotope to generate H2 and O2 from water, then to utilize these species in a fuel cell to generate electricity. This method can regenerate its own reactants and operate ... |
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| Object Oriented Programmable Integrated Circuit (OOPic) Upgrade and Evaluation for Autonomous Ground Vehicle (AGV) |
DEC 2006 |
61 pages |
| Authors:
Andrew J. Hoffman; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| A small, low-power Object-Oriented Programmable integrated circuit microcontroller, was integrated and tested with the architecture for an autonomous ground vehicle (AGV). Sensors with the OOPic, and the XBee Wireless Suite were included in the integration. Tests were conducted, including range and time operation analysis for wireless communications for comparison with the legacy BL2000 microcontroller. Results demonstrated long battery life for the electronics of the robot, as well as communication ranges ... |
|
| Model of High-Energy-Density Battery Based on SiC Schottky Diodes |
OCT 2006 |
20 pages |
| Authors:
Yves Ngu; Marc Litz; Bruce Geil; ARMY RESEARCH LAB ADELPHI MD SENSORS AND ELECTRON DEVICES DIRECTORATE
|
| Silicon carbide (SiC) diodes are being investigated as direct energy converters (DECs) for use in small, long-lived nuclear power sources for unattended sensors. Voltage and current measurements on Schottky diodes fabricated from both Si and SiC result in typical efficiencies of 5 to 15%. A drift-diffusion model has been developed to predict the output and to help us better understand the radiation-induced current that results. This report describes the initial ... |
|
| Development of the C-17 Fan Thrust Reverser Container, CNU-688/E |
OCT 2006 |
55 pages |
| Authors:
Mark W. Boals; Susan J. Evans; AIR FORCE PACKAGING TECHNOLOGY AND ENGINEERING FACILITY WRIGHT-PATTERSON AFB OH
|
| The Air Force Packaging Technology and Engineering Facility (AFPTEF) was tasked with the design of a new shipping and storage container for the C-17 Fan Thrust Reverser (FTR) in March of 2004. The new container is designed to replace the wood crate and wood frame assembly presently used. The current containers lack of mechanical protection, environmental protection, handling issues, and left and right container requirements prompted AFPTEF's design of a ... |
|
| High-Throughput Detection of Bacillus Anthracis Spores using Peptide-Conjugated Nano/Micro-Beads |
26 JUL 2006 |
22 pages |
| Authors:
Sang Y. Lee; KOREA ADVANCED INST OF SCIENCE AND TECHNOLOGY DAEJEON (SOUTH KOREA) DEPT OF CHEMICAL AND BIOMOLECULAR ENGINEERING
|
| Magnetic bead and Q dots are very attractive materials for detecting B. anthracis spores. Magnetic beads can rapidly isolate B. anthracis spores based on magnetic polarity of the pores, whereas Qdots have ideal characteristics for dense spectral multiplexing, narrow emission range and long lifetime, and can perform simple multiplexed analysis. In this study, they investigated developing a rapid, simple and highly sensitive detection method for detecting B. anthracis spores by ... |
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| Studies of Ionospheric Processes in the Atmosphere and the Laboratory |
01 JUN 2006 |
33 pages |
| Authors:
T. G. Slanger; SRI INTERNATIONAL MENLO PARK CA MOLECULAR PHYSICS LAB
|
| The ionosphere can be studied in a variety of ways - observation, modeling, and the simulation of ionospheric processes in the laboratory. Over the last several years we have carried out such studies in two ways, from ground-based observations using astronomical sky spectra, and from laboratory investigations. At altitudes above 200 km, the dominant atmospheric particles are oxygen atoms, and for any collisional studies it is always necessary to inquire ... |
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| Long Life MEM Switch Technology |
23 MAY 2006 |
24 pages |
| Authors:
Gabriel M. Rebeiz; MICHIGAN UNIV ANN ARBOR DIV OF RESEARCH DEVELOPMENT AND ADMINISTRATION
|
| Report developed under contract FA8718-04-C-0029. Microelectromechanical (MEM) switches have already been developed that demonstrate exceptional RF performance but have been plagued by poor reliability. In this work, two new MEM switches were developed with the goal of increasing reliability. The first is a miniature switched capacitor that is 150-300 times smaller than typical RF MEMS switches. The bridges on these switches are 21 micrometers long by 8 micrometers wide and ... |
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| Improved Buttress Thread Machining for the Excalibur and Extended Range Guided Munitions |
21 APR 2006 |
2 pages |
| Authors:
NATIONAL CENTER FOR DEFENSE MANUFACTURING AND MACHINING LATROBE PA
|
| Raytheon Missile Systems (Raytheon) of Tucson, Arizona, manufacturer of the Excalibur and Extended Range Guided Munitions (ERGM) have consistently received critical components containing Class III, 7 degree/45 degree buttress threads out-of-tolerance from their suppliers. These out-of-tolerance conditions have caused failures of the components at the buttress thread joints. The Rockwell hardness of the 4340 steel (Rc53) being used for the components is a major contributor to the out-of-tolerance condition. The ... |
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| Development of the Combat Talon I - APQ-122 Terrain Following Radar (TFR) Antenna Container |
MAR 2006 |
44 pages |
| Authors:
Matthew P. Bozzuto; Susan J. Evans; AIR FORCE PACKAGING TECHNOLOGY AND ENGINEERING FACILITY WRIGHT-PATTERSON AFB OH
|
| The Air Force Packaging Technology Engineering Facility (AFPTEF) was tasked with the design of a new shipping and storage container for the Combat Talon I - TFR Antenna in May of 2005. The new container is designed to replace the fiberglass container that was previously used. The main problems with the fiberglass design were corrosion due to inadequate environmental control and protection, isolation system breakdown, and that there was no ... |
|
| Creep-Rupture and Fatigue Behaviors of Notched Oxide/Oxide Ceramic Matrix Composite at Elevated Temperature |
MAR 2006 |
104 pages |
| Authors:
Mark A. Sullivan; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
|
| Oxide/oxide composites are being considered for use in high temperature aerospace applications where their inherent resistance to oxidation provides for better long life properties at high temperature than most other ceramic matrix composites (CMCs). One promising oxide/oxide CMC is Nextel 720/A (N720/A) which uses an 8-harness satin weave (8HSW) of Nextel 720 fibers embedded in a porous alumina matrix. Possible aerospace applications for N720/A will likely require inserting holes into ... |
|
| Development of the C-17 Nose Radome Container, CNU-674/E |
27 FEB 2006 |
46 pages |
| Authors:
Mark W. Boals; Susan J. Evans; AIR FORCE PACKAGING TECHNOLOGY AND ENGINEERING FACILITY WRIGHT-PATTERSON AFB OH
|
| The Air Force Packaging Technology Engineering Facility (AFPTEF) was tasked with the design of a new shipping and storage container for the C-17 Radome in March of 2004. The new container is designed to replace the wood and fiberglass shell container presently used. The current containers lack of mechanical and environmental protection as well as handling issues prompted AFPTEF's design of a new container. The new container will protect the ... |
|
| Development of the C-17 Heads-Up Display (HUD) Container, CNU-676/E |
27 JAN 2006 |
47 pages |
| Authors:
Robbin L. Miller; Susan J. Evans; AIR FORCE PACKAGING TECHNOLOGY AND ENGINEERING FACILITY WRIGHT-PATTERSON AFB OH
|
| The Air Force Packaging Technology and Engineering Facility (AFPTEF) was tasked with the design of a new shipping and storage container for the C-17 Heads-Up Display (HUD) unit in March of 2004. The new container is designed to replace the wood/fiberboard combination package presently used. The current containers lack of mechanical and environmental protection as well as handling issues prompted AFPTEF's design of a new container. The new container will ... |
|
| Lifetime Maximizing Adaptive Power Control in Wireless Sensor Networks |
2006 |
11 pages |
| Authors:
Fangting Sun; Mark Shayman; MARYLAND UNIV COLLEGE PARK DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
| Network lifetime is one of the most critical performance measures for wireless sensor networks. Various schemes have been proposed to maximize the network lifetime. In this paper, the authors consider the lifetime maximization problem via a new approach: adaptive power control. They focus on the sensor networks that consist of a sink and a set of homogeneous wireless sensor nodes, which are randomly deployed according to a uniform distribution. Each ... |
|
| 25.5 Betavoltaic Power Cells |
2006 |
5 pages |
| Authors:
C. J. Eiting; V. Krishnamoorthy; E. Romero; S. Jones; QYNERGY INC ALBUQUERQUE NM
|
| Betavoltaic power cells utilize beta-emitting radioisotopes and semiconductor devices to produce long-lived power in a variety of small for factors. Qynergy is developing betavoltaic power cells based on silicon carbide junction converters and 85Kr and 147Pm isotopes for a variety of applications. |
|
| Filling H-60 Helicopter Readiness Shortfalls by Streamlining and Revising Depot Level Maintenance Procedures |
DEC 2005 |
49 pages |
| Authors:
Timothy M. Snowden; Douglas R. Sullivan; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Recognizing the need to extend aircraft service lives, Naval Air Systems Command developed the Integrated Maintenance Concept (IMC). IMC was seen as an opportunity to integrate tasks over all levels of maintenance and balance the operational, engineering, and fiscal aspects of an aircraft's preventative maintenance program. But implementation of IMC has resulted in several unintended consequences, the most important of which is degraded readiness. Aircraft rebuild and in-process work that ... |
|
| High Performance Thermoelectric Materials Using Solution Phase Synthesis of Narrow Bandgap Core/Shell Quantum Dots Deposited Into Colloidal Crystal Thin Films |
JUN 2005 |
18 pages |
| Authors:
EVIDENT TECHNOLOGIES TROY NY
|
| Thermoelectrics is the science and technology associated with thermoelectric converters, that is, the generation of electrical power based on the Seebeck effect and refrigeration by the Peltier effect. The attractive features of thermoelectric devices are their long life, low maintenance, they have no moving parts, they can be miniaturized, they do not produce emissions that might be harmful to the environment, and they are highly reliable. Thermoelectric generators are used ... |
|
| Advanced Fibers, Anti-Friction Materials and Jackets for Navy Ropes |
20 JAN 2005 |
23 pages |
| Authors:
Eric Van Every; Eric Johnson; ADVANCED DESIGN CONSULTING INC LANSING NY
|
| The overall objective of phase II is to develop a synthetic rope that is significantly more robust than existing ropes, approaching the strength and resistance to damage of wire rope, while maintaining the substantial advantages of synthetics - low weight, greater flexibility, longer fatigue life and minimal maintenance. This will be accomplished by research on materials, surface treatments, coatings and structure at the fiber, yam, strand and finished rope levels. ... |
|
| Evaluation of Catalytic Materials for Military Air Purification Applications |
DEC 2004 |
|
| Authors:
Alex Balboa; Joseph A. Rossin; Edward Weller; EDGEWOOD CHEMICAL BIOLOGICAL CENTER ABERDEEN PROVING GROUND MD RESEARCH AND TECHNOLOGY DIR
|
 | Fielded air purification systems designed for removal of chemical warfare agents from air streams are based solely on activated, impregnated carbon, namely ASZM-TEDA. The broad chemical biological and radiological (CBR) threat presents a challenge to the traditional fielded CBR air purification technology, impregnated carbon filters. While these filters function well against a wide range of chemical agents, they possess several shortcomings such as limited capacity for agents that are removed ... |
|
| TechIP: A Methodology for Emerging Information Technology Insertion & Integration |
DEC 2004 |
3 pages |
| Authors:
Has Patel; INFOLOGIC INC NEWPORT BEACH CA
|
| 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. ... |
|
| Vectran Fiber Time Dependant Behavior and Additional Static Loading Properties |
NOV 2004 |
22 pages |
| Authors:
Russell B. Fette; Marjorie F. Sovinski; NATIONAL AERONAUTICS AND SPACE ADMINISTRATION GREENBELT MD GODDARD SPACE FLIGHT CENTER
|
| Vectran HS appears from literature and testing to date to be an ideal upgrade from Kevlar braided cords for many long-term, static-loading applications, such as tie-downs on solar arrays. Vectran is a liquid crystalline polymer that exhibits excellent tensile properties. The material has been touted as a zero creep product. The testing discussed in this report does not support this statement, though the creep is on the order of four ... |
|
| Scalable Coordination Architectures for Deeply Distributed Systems (SCADDS) |
08 JUL 2004 |
23 pages |
| Authors:
Deborah Estrin; John Heidemarm; Ramesh Govindan; UNIVERSITY OF SOUTHERN CALIFORNIA MARINA DEL REY INFORMATION SCIENCES INST
|
| The SCADDS project explored and demonstrated scalable coordination mechanisms for deeply distributed and dynamic systems. Nodes in these systems were heterogeneous, having a range of sensing, actuation and communication capabilities. These systems raised many challenges for distributed system and network design. The first was a shift from node-centric, to data-centric network architecture. Both scalability and long lifetime called for extensive processing of data within and among the nodes of the ... |
|
| Lifetime Lubricated Engines Using Triboreactive Materials |
01 JUN 2004 |
23 pages |
| Authors:
Mathias Woydt; FEDERAL INST FOR MATERIALS RESEARCH AND TESTING (BAM) BERLIN (GERMANY)
|
| By means of an analysis of future trends in engine oil specifications with the associated consequences for the functional properties performed by base oils and individual additives, the need and potential application of alternative fluids and triboactive materials or lubricious oxides will be displayed. Oxidation resistance and low volatility represent key elements to assure long drains or lifetime lubrication in order to minimize or avoid manual or automatic top-ups. The ... |
|
| Advanced Universal High Temperature Tribometer |
MAY 2004 |
26 pages |
| Authors:
Hooshang Heshmat; MOHAWK INNOVATIVE TECHNOLOGY INC ALBANYNY
|
| Small, mesoscopic-sized, steam-powered machines are being developed using new materials while operating at high speeds and temperatures in an effort to achieve high efficiencies and power densities. It is imperative that an in- depth understanding of material tribological properties be gained to ensure that the goal of long life and high efficiency are achieved in the developed machinery. Due to the wide range of parameters affecting wear, an advanced tribometer ... |
|
| Permanent Implantation Brachytherapy for Prostate Cancer Using a Mixture of Radionuclides With Different Half Lives |
MAR 2004 |
105 pages |
| Authors:
Ravinder Nath; YALE UNIV NEW HAVEN CT SCHOOL OF MEDICINE
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| Overall objective of this project was to test whether the therapeutic effectiveness of permanent implant brachytherapy for prostate cancer can be improved by using a combination of short and long half life radionuclides simultaneously. A theoretical model for continuous low dose rate irradiation (CLDRI) using a mixture of radionuclides was developed. Experiments were performed using BA1112 tumor and Chinese Hamster cells in vitro and BA1112 cells in vivo as solid ... |
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| Development of GOX/Kerosene Swirl-Coaxial Injector Technology |
30 JUN 2003 |
11 pages |
| Authors:
Gary C. Cheng; Rory R. Davis; Curtis W. Johnson; Jeffrey A. Muss; Daniel A. Griesen; SIERRA ENGINEERING INC CARSON CITY NV
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| In developing an advanced liquid rocket engine, injector design is critical to obtaining the dual goals of long engine life and high-energy release efficiency in the main combustion chamber. A joint effort of Sierra Engineering (Sierra) and the Propulsion Directorate of the Air Force Research Lab (AFRL) was conducted to develop a design methodology, utilizing both high- pressure cold- flow testing and uni-element hot fire testing, to create a high ... |
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| Ruggedized Full-Color Flexible OLED Display |
JUN 2003 |
70 pages |
| Authors:
Michael Hack; Stephen R. Forrest; Mark Thompson; Tom Jackson; Robert Praino; UNIVERSAL DISPLAY CORP EWING NJ
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| The objective of this program was to demonstrate a flexible, rugged, bright and efficient phosphorescent OLED technology with a low cost manufacturing path. The team comprised Universal Display Corporation, Princeton University, the University of Southern California, Penn State University, L3 Displays and Vitex Systems, and was led by Universal Display Corporation (PI: michael Hack). The program focused on developing the technology to enable reliable low power consumption flexible (FOLED(Trademark)) displays ... |
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| Optimization of 178m2Hf Isomer Production in Spallation Reactions |
15 MAY 2003 |
23 pages |
| Authors:
Volodymyr I. Kyryschchuk; INSTITUTE OF NUCLEAR RESEARCH KIEV (UKRAINE)
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| After successful observation of gamma-emission from the 31-yr isomer of 176Hf induced by x-ray irradiation. the scientific interest for the triggering of long-lived nuclear spin isomers has greatly increased. We observed great efficiency of the triggering with low-energy (<20 keV) x-rays inducing the decay of 178m2Hf isomers that stresses all models. which might have been able to predict such an effect. Thus, there is a necessity to produce research lab-sized ... |
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Reports by Keyword(s)
LONG LIFE
