| Defining the Role of BTLA in Breast Cancer Immunosurveillance and Selective Targeting of the BTLA-HVEM-LIGHT Costimulatory System |
May 2012 |
45 pages |
| Authors:
William Gillanders; SAINT LOUIS UNIV MO
|
 | Costimulatory (CD28, ICOS) and inhibitory (CTLA4, PD-1) molecules of the CD28 receptor family provide critical secondary signals regulating the balance between protective immunity and tissue injury. We recently cloned B- and T-lymphocyte attenuator (BTLA), the third inhibitory receptor of the CD28 family expressed on lymphocytes. Using BTLA-deficient mice and monoclonal antibodies specific for BTLA that we generated, we have studied several in vivo models of infection and autoimmunity, showing the ... |
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| Initial Design and Concept of Operations for a Clandestine Data Relay UUV To Circumvent Jungle Canopy Effects on Satellite Communications |
Sep 2011 |
91 pages |
| Authors:
Michael G Tyree; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Communications within jungle environments has always been a difficult proposition. This is especially true of collection assets beneath triple canopy jungle that need to communicate with overhead national assets. The traditional methods of countering the negative effects of the canopy on EM signals have been to increase the power to offset the losses, or to utilize new, more canopy transparent portions of the EM spectrum. However, there are complications with ... |
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| Distribution and Larval Habitats of Anopheles Species in Northern Gyeonggi Province, Republic of Korea |
Jun 2011 |
13 pages |
| Authors:
Heung-Chul Kim; Leopoldo M Rueda; RichArd C Wilkerson; Desmond H Foley; William J Sames; Sung-Tae Chong; Peter V Nunn; Terry A Klein; 168TH MULTIFUNCTIONAL MEDICAL BATTALION APO AP 96205-5247 65TH MEDICAL BRIGADE
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| A total of 180 larval collection sites (e.g., rice paddies, marshes, ground pools, ponds, stream margins and irrigation and drainage ditches) was surveyed within a 2 km radius from Warrior Base training area, 5 km south of Panmunjeom (Joint Security Area, demilitarized zone), Gyeonggi Province, Republic of Korea (ROK), from May through October, 2007 to characterize larval habitat distributions of members of the Anopheles Hyrcanus Group (An. sinensis, An. lesteri, ... |
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| Updated Distribution Records for Anopheles vagus (Diptera: Culicidae) in the Republic of Philippines, and Considerations Regarding Its Secondary Vector Roles in Southeast Asia |
Jan 2011 |
8 pages |
| Authors:
L M Rueda; J E Pecor; B A Harrison; WALTER REED ARMY INST OF RESEARCH SILVER SPRING MD DEPT OF ENTOMOLOGY
|
| Distribution records for Anopheles (Cellia) vagus in the Republic of the Philippines were updated, including recent collection and museum records from Luzon and Visayas Provinces. Larval habitats (e.g. rice paddies, irrigation and drainage ditches) associated species, and the vector potential of this species were also noted. |
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| Aspect Influences on Soil Water Retention and Storage |
Jan 2011 |
9 pages |
| Authors:
I J Geroy; M M Gribb; H P Marshall; D G Chandler; S G Benner; James P McNamara; BOISE STATE UNIV ID DEPT OF GEOSCIENCES
|
| Many catchment hydrologic and ecologic processes are impacted by the storage capacity of soil water, which is dictated by the profile thickness and water retention properties of soil. Soil water retention properties are primarily controlled by soil texture, which in turn varies spatially in response to microclimate-induced differences in insolation, wetness, and temperature. All of these variables can be strongly differentiated by slope aspect. In this study, we compare quantitative ... |
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| AlGaN/GaN High Electron Mobility Transistor Degradation Under On- and Off-State Stress |
Jan 2011 |
6 pages |
| Authors:
E A Douglas; C Y Chang; D J Cheney; B P Gila; C F Lo; Liu Lu; R Holzworth; P Whiting; K Jones; G D Via; FLORIDA UNIV GAINESVILLE DEPT OF MATERIALS SCIENCE AND ENGINEERING
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| AlGaN/GaN High Electron Mobility Transistors (HEMTs) with various gate lengths have been stepstressed under both on- and off-state conditions. On-state, high power stress tests were performed on 0.17 lm gate length HEMTs and a single 5 lm spaced TLM pattern. Significant degradation of the submicron HEMTs as compared to the excellent stability of the TLM patterns under the same stress conditions reveal that the Schottky contact is the source of ... |
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| American Recovery and Reinvestment Act of 2009 Funds Properly Used to Repair the C-5 Aircraft Ramp and Perimeter Drainage at Westover Air Reserve Base, Massachusetts |
09 NOV 2010 |
22 pages |
| Authors:
INSPECTOR GENERAL DEPT OF DEFENSE ARLINGTON VA
|
| The primary objective of the audit was to determine whether DOD and its Components were planning and implementing the American Recovery and Reinvestment Act of 2009 (Recovery Act) by meeting the requirements in the Recovery Act, Office of Management and Budget (OMB) Memorandum M-09-10, "Initial Implementing Guidance for the American Recovery and Reinvestment Act of 2009", February 18, 2009, and subsequent related guidance. For this audit, we reviewed the planning, ... |
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| Eagle's Wings |
Jun 2010 |
19 pages |
| Authors:
Bill E Sproul; ASSISTANT CHIEF OF STAFF FOR INSTALLATION MANAGEMENT (ARMY) WASHINGTON DC
|
| Low Impact Development incorporates proven storm water management principles and technologies into project planning and design in order to manage storm water as close to where the precipitation lands as possible. This is done to maintain or restore the pre-development hydrology of the site, reduce runoff volume and peak runoff rates, and reduce the potential transport of pollutants to receiving waters. |
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| Non-Native Suckermouth Armored Catfishes in Florida: Description of Nest Borrows and Burrow Colonies with Assessment of Shoreline Conditions |
Apr-2009 |
31 pages |
| Authors:
Leo G Nico; Howard L Jelks; Travis Tuten; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS ENVIRONMENTAL LAB
|
| Non-native populations of the Neotropical family Loricariidae, the suckermouth armored catfishes, have been introduced and become established in many warm-climate regions of the world, including parts of the United States (e.g., Florida and Texas). In Florida, the most common loricariid catfishes are members of the genus Pterygoplichthys. Over the past 20 years these catfishes have invaded most inland drainages in the central and southern parts of the Florida peninsula. In ... |
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| Threshold Voltage Improvement and Gate Leakage Current Reduction in a Multi-dot Room Temperature Operating Single Electron Transistor (RT-SET) |
Dec-2008 |
5 pages |
| Authors:
Manoranjan Acharya; Daw D Cheam; P S Karre; Paul L Bergstrom; MICHIGAN TECHNOLOGICAL UNIV HOUGHTON DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
| The single-electron transistor (SET) is one of the best candidates for future nano electronic circuits because of its ultralow power consumption and small size. SET devices operate on the principle of Coulomb blockade, which is more prominent at dimensions of a few nano meters. Typically, the SET device consists of two capacitively coupled ultra small tunnel junctions with a nano island between them. The electron tunneling through the tunnel junctions ... |
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| Army Corps of Engineers. Known Performance Issues with New Orleans Drainage Canal Pumps Have Been Addressed, but Guidance on Future Contracts is Needed |
DEC 2007 |
48 pages |
| Authors:
Anu K. Mittal; William T. Woods; Terrell G. Dorn; GOVERNMENT ACCOUNTABILITY OFFICE WASHINGTON DC
|
| Hurricane Katrina caused several breaches in the floodwalls along three drainage canals in New Orleans, contributing to catastrophic flooding. To restore the pre-Katrina level of hurricane-related flood protection, the Army Corps of Engineers (Corps) decided to acquire several large-capacity pumping systems. During the process of acquiring, testing, and installing the pumping systems, issues with the pump contract and operation of the pumping systems came to light, including several identified in ... |
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| The Geology of Guadalcanal: A Selected Bibliography of the Geology, Natural History, and the History of Guadalcanal |
SEP 2007 |
360 pages |
| Authors:
R. L. Hadden; CORPS OF ENGINEERS ALEXANDRIA VA
|
| This bibliography on the geographical, water and geological information or Guadalcanal was begun to rill a request for current information needed for the forensics recovery %of the bodies of the US Marines of the Lt Col. Frank B. Goettge Reconnaissance patrol that was ambushed in August 1942. Part I %of this report is a bibliography of the geology, geography and natural history of the island. Part II is a bibliography ... |
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| Vegetation Impacts Upon Stream Width |
AUG 2007 |
11 pages |
| Authors:
Craig Fischenich; Dinah McComas; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS ENVIRONMENTAL LAB
|
| Hydraulic geometry relationships are often used in the hydraulic design of channels for stream restoration projects. Hydraulic geometry theory is based on the concept that a river system tends to develop in a predictable way, producing an approximate equilibrium between the channel and the inflowing water and sediment (Leopold and Maddock 1953). The theory typically relates a dependent variable, such as width or slope, to an independent or driving variable, ... |
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| CTT&F: Distributed Sources Chemical Transport, Transformation and Fate Submodel |
OCT 2006 |
18 pages |
| Authors:
Billy E. Johnson; Zhonglong Zhang; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS
|
| The distributed watershed Chemical Transport, Transformation and Fate (CTT&F) Sub-model was developed and documented by the Environmental Laboratory of the U.S. Army Engineer Research and Development Center to characterize spatial and temporal dynamics of chemicals from both point and non-point sources. The sub-model simulates multi-chemical transport and transformation processes across watershed systems. CTT&F has a modular, process-oriented structure so that it can be easily modified, extended, or even provide a ... |
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| Report on the International Workshop River Deltas: Evolution, Environmental, Challenges and Sustainable Management |
SEP 2006 |
10 pages |
| Authors:
CORPS OF ENGINEERS WASHINGTON DC
|
| "The most important landform produced where a river enters a body of standing water is known as a delta. The term is normally applied to a depositional plain formed by a river at its mouth, with the implication that sediment accumulation at this position results in an irregular progradation of the shoreline. Their evolution and shapes are depending on (1) characteristics within the drainage basin that provides the sediment (climate, ... |
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| Hydraulic Design of Channels Conveying Supercritical Flow |
JUL 2006 |
40 pages |
| Authors:
Richard L. Stockstill; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICS LAB
|
| This is a review of the Hydrologic Criteria and Drainage Design Manual (Clark County Regional Flood Control District 1999) of the Clark County Regional Flood Control District (CCRFCD). Areas of needed research relative to channels conveying supercritical flow and corresponding channel appurtenances have been identified. The extension of features common to supercritical channel flow is presented. A case is made that extension of hydraulic design guidance of supercritical confluences (trapezoidal ... |
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| Nanosecond Thermal Processing for Self-Aligned Silicon-on-Insulator Technology |
APR 2005 |
26 pages |
| Authors:
A. D. Ramirez; Offord B. W.; S. D. Russell Popp J. F. Rowland; SPACE AND NAVAL WARFARE SYSTEMS CENTER SAN DIEGO CA
|
| Future radar and communications systems will have the need to use CMOS integrated circuits to provide increased analog and digital functions. Conventional CMOS technology has been locked into designing processes around polysilicon gate material because of the need for self-alignment. Low-resistance metal gates are superior for high-speed devices; however, their low melting point prevented their use in a self-aligned structure that experiences high-temperature processing (>700 oC). Silicon-on-Insulator (SOI) technology, non-refractory ... |
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| Adaptation to the Dynamic Coastal Areas Affected by the Atchafalaya Basin Outlets: an Historical Geography Analysis South Central Louisiana |
APR 2005 |
604 pages |
| Authors:
Donald W. Davis; III Castille George J.; COASTAL ENVIRONMENTS INC BATON ROUGE LA
|
| Coastal Environments, Inc. conducted an historical geography of the central Louisiana coast. This investigation included historical research, fieldwork, interviews of residents, and report preparation. The investigation was designed to examine human responses to physical change along that part of the Louisiana coast between Bayou Lafourche and Freshwater Bayou Canal, an area that includes the mouth of Atchafalaya River. A geographical approach was used, emphasizing documentation of historical settlement over the ... |
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| Temperature Dependent Current-Voltage Measurements of Neutron Irradiated A10.27Ga0.73N/GaN Modulation Doped Field Effect Transistors |
MAR 2005 |
189 pages |
| Authors:
Troy A. Uhlman; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
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| In this research, the first ever neutron irradiation study of AlGaN/ GaN MODFETs was conducted. Devices irradiated to a total 1 MeV Eq (Si) neutron fluence of 1.2x10^16 n/sq cm demonstrated the temperature dependence of irradiation and annealing. Devices irradiated at 80 K exhibited significant persistent electrical degradation at only 5.4 rad (Si), whereas those irradiated at elevated temperatures exhibit transient increases in gate and drain current up to 400 ... |
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| Improved Performance of Unpaved Roads During Spring Thaw |
FEB 2005 |
179 pages |
| Authors:
Karen S. Henry; James P. Olson; Stephen P. Farrington; John Lens; ENGINEER RESEARCH AND DEVELOPMENT CENTER HANOVER NH COLD REGIONS RESEARCH AND ENGINEERING LAB
|
| Unpaved roads in Vermont are subject to deterioration from seasonal freezing and thawing, and many towns have roads that suffer chronic serviceability problems during the so-called "spring thaw," or mud season. Several techniques thought to mitigate deterioration of unpaved roads during spring thaw were constructed on test sections of unpaved roads in two towns. Each potential remedy was aimed at providing some combination of limiting the availability of moisture in ... |
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| Rainfall, Streamflow, and Water-Quality Data During Stormwater Monitoring, Halawa Stream Drainage Basin, Oahu, Hawaii, July 1, 2004 to June 30, 2005 |
2005 |
24 pages |
| Authors:
Stacie T. Young; Marcael T. Ball; GEOLOGICAL SURVEY RESTON VA
|
| Storm runoff water-quality samples were collected as part of the State of Hawaii Department of Transportation Stormwater Monitoring Program. This program is designed to assess the effects of highway runoff and urban runoff on Halawa Stream. For this program, rainfall data were collected at two stations, continuous streamflow data at two stations and water-quality data at five stations, which include the two continuous streamflow stations. This report summarizes rainfall, streamflow, ... |
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| Calculation of Streamflow Statistics for Ontario and the Great Lakes States |
2005 |
21 pages |
| Authors:
Andrew R. Piggott; Brian P. Neff; GEOLOGICAL SURVEY WASHINGTON DC
|
| Basic, flow-duration, and n-day frequency statistics were calculated for 779 current and historical streamflow gages in Ontario and 3,157 streamflow gages in the Great Lakes states with length-of-record daily mean streamflow data ending on December 31, 2000 and September 30, 2001, respectively. The statistics were determined using the U.S. Geological Survey's SWSTAT and IOWDM, ANNIE, and LIBANNE software and Linux shell and PERL programming that enabled the mass processing of ... |
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| Mock Weapon Magazine Outfitting Aboard ex-USS Shadwell to Support LFT&E Program for CVNX (LSD-15) |
12 JAN 2004 |
32 pages |
| Authors:
S. N. Fowler; B. J. Havlovick; J. T. Yadon; Frederick W. Williams; NAVAL RESEARCH LAB WASHINGTON DC
|
| The objective of this report is to present the basic physical characteristics of the two mock weapon magazines aboard the ex-USS Shadwell. In addition, details on the structural, mechanical, and electrical mock systems are provided to document the outfitting that will be implemented Those aspects of the mock weapon magazines aboard the ex-USS Shadwell that are presented are spatial data, structural, insulation, ventilation, fire protection, drainage, magazine stowage, and electrical. ... |
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| Technical and Regulatory Guidance Document for Constructed Treatment Wetlands |
01-Dec-2003 |
200 pages |
| Authors:
Bob Mueller; David Cates; Mannish Patel; Paul Eger; Charles Harman; JOhn Kornuc; Satish Kastury; Dib Goswami; Frank Payer; Danielle Talkington; INTERSTATE TECHNOLOGY AND REGULATORY COUNCIL WETLANDS TEAM WASHINGTON DC
|
| Constructed treatment wetlands are manmade wetlands built specifically to treat contaminants in surface water, groundwater, or waste streams such as leachate and acid mine drainage. The purpose of this document is to provide technical and regulatory guidance to help regulators, industry, consultants, and technology vendors understand, evaluate, and make informed decisions about the use of constructed treatment wetland systems. While there is extensive published literature on the subject, constructed wetland ... |
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| Assessment of Historic Landscape, Highway 45 Borrow Pit, Jefferson Parish, Louisiana |
OCT 2003 |
92 pages |
| Authors:
Benjamin D. Maygarden; Mary E. Weed; Rhonda Smith; Jill-Karen Yakubik; EARTH SEARCH INC NEW ORLEANS LA
|
| Earth Search, Inc., undertook a limited cultural resource investigation of a proposed borrow pit for a hurricane protection feature of the West Bank Hurricane Protection Project. Work was performed under contract to the New Orleans District, US Army Corps of Engineers. The project area lies on the west side of the Highway 45 levee and east and north of the Jean Lafitte National Historical Park and Preserve boundary. Fieldwork consisted ... |
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| Characterization of Seismoacoustic Properties of Marine Sediments |
SEP 2003 |
45 pages |
| Authors:
Jacques R. Chamuel; SONOQUEST ADVANCED ULTRASONICS RESEARCH WELLESLEY HILLS MA
|
| Experimental findings are presented on fundamental seismoacoustic characteristics of unconsolidated sediments not explained by existing theories. Precision measurements of the compressional velocity "C(p)" in coarse water- saturated sand revealed that C(p) decreased by 14% as frequency increased from 80 to 880 kHz, while the Biot theory predicted an increase of < 1 %. Measured dispersion in saturated fine sand and glass beads had a similar trend. Data from Kings Bay ... |
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| Fluoride Ion Regeneration of Sarin (GB) From Minipig Tissue and Fluids Following Whole-Body GB Vapor Exposure |
01-Jul-2003 |
8 pages |
| Authors:
B J Benton; S A Thomson; H D Durst; J S Anthony; R J Mioduszewski; E M Jakubowski; K L Matson; S W Hulet; J H Manthei; J L Edwards; EDGEWOOD CHEMICAL BIOLOGICAL CENTER ABERDEEN PROVING GROUND MD
|
| A method has been developed for the analysis of a Sarin (GB) nerve agent biomarker in the tissue and biological fluids of minipigs that is very sensitive and selective. The GB biomarker was the fluoride ion regenerated GB and was found in minipig samples such as red blood cells, brain, liver, lung, and adipose tissue after whole body inhalation exposure. Regenerated GB in the samples was analyzed by GC-FPD after ... |
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| Lymphatic Regeneration Within Porous VEGF-C Hydrogels for Secondary Lymphedema |
JUL 2003 |
17 pages |
| Authors:
Mauricio A. Contreras; BETH ISRAEL DEACONESS MEDICAL CENTER BOSTON MA
|
| Lymphedema is an abnormal swelling, in which lymph production exceeds drainage capabilities. This occurs as a result of lymphatic vessel destruction during the removal of lymph nodes or subsequent radiation therapy in breast cancer treatment. Management of lymphedema remains a clinical problem. In adult lymphangiogenesis, VEGF-C has been shown to be a specific mitogen for lymphatic endothelial cells (LEC) via the VEGF-3 receptor. Ang-2 has recently been shown to be ... |
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| Understory Density Characteristics in Several Midlatitude Temperature Forests |
MAR 2003 |
43 pages |
| Authors:
Paul F. Krause; Harry B. Puffenberger; Brian J. Graff; Christopher D. Gard; ENGINEER RESEARCH AND DEVELOPMENT CENTER ALEXANDRIA VA TOPOGRAPHIC ENGINEERING CENTER
|
| Understory density can have impacts on such military activities as cross-country mobility, bivouac, cover and concealment, and line of sight Airborne sensors provide a fairly good mechanism for measuring the overstory: crown diameter and tree height. The nature and characteristics of the understory, however, must be subjectively estimated by the analyst. This current work focused on the development of a model to predict understory plant densities from measurable overstory characteristics. ... |
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| Effects of Confined Disposal Facility and Vadose Zone Characteristics on Leachate Quality |
FEB 2003 |
15 pages |
| Authors:
Paul R. Schroeder; Robert M. Engler; N. M. Aziz; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS
|
| This technical note presents the results of an analysis of the impact of confined disposal facility (CDF) design, site climatology, and the characteristics of the foundation soil on leachate transport to the water table below. The results serve as guidance in CDF design and assist in decision-making regarding the use of leachate controls. This technical note presents the main factors that affect leachate production and its transport out of the ... |
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| Rainfall, Streamflow, and Water-Quality Data During Stormwater Monitoring, Halawa Stream Drainage Basin, Oahu, Hawaii, July 1, 2002 to June 30, 2003 |
2003 |
37 pages |
| Authors:
Stacie T. M. Young; Marcael T. J. Ball; GEOLOGICAL SURVEY WASHINGTON DC
|
| Storm runoff water-quality samples were collected as part of the State of Hawaii Department of Transportation Stormwater Monitoring Program. This program is designed to assess the effects of highway runoff and urban runoff on Halawa Stream. For this program rainfall data was collected at two sites continuous streamflow data at three sites and water-quality data at five sites which include the three streamflow sites. This report summarizes rainfall streamflow and ... |
|
| Photoionization Spectroscopy in AlGaN/GaN High Electron Mobility Transistors |
01-Nov-2002 |
6 pages |
| Authors:
P B Klein; NAVAL RESEARCH LAB WASHINGTON DC
|
| A model is developed to describe the light-induced restoration of the drain current from current collapse in AlGaN/GaN high electron mobility transistors. The model assumes that the collapse results from a transfer at large drain bias of hot carriers from the gate drain region of the two-dimensional electron gas to deep traps in the high-resistivity GaN layer. Application of the model provides a means of determining the photoionization cross sections ... |
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| Electro-Osmotic Pulse (EOP) Technology for Control of Water Seepage in Concrete Structures |
AUG 2002 |
167 pages |
| Authors:
Michael K. McInerney; Sean Morefield; Sondra Cooper; Philip Malone; Charles Weiss; Matthew Brady; Jonathan Taylor; Vincent F. Hock; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING RESEARCH LAB
|
| In older buildings, such as those common on U.S. Army installations, severe damp-basement problems can increase maintenance requirements and make affected areas uninhabitable or even unusable. In problem areas, the usual approach to solve groundwater intrusion problems is to excavate to expose the wall area and the base of the foundation ("trench") and then to replace damp proofing on the wall surface and to install a drain tile system around ... |
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| Coastal Processes Study of San Bernard River Mouth, Texas: Stability and Maintenance of Mouth |
AUG 2002 |
87 pages |
| Authors:
Nicholas C. Kraus; Lihwa Lin; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICSLAB
|
| This report documents an investigation of the coastal and inlet physical processes acting at the San Bernard River mouth, Texas. The U.S. Army Engineer District, Galveston, requested the U.S. Army Engineer Research and Development Center (ERDC), Coastal and Hydraulics Laboratory (CHL), to conduct this study to assist in formulation and assessment of alternatives for improving navigation along the Gulf Intracoastal Waterway (GIWW) between the Brazos River and the San Bernard ... |
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| Breast Cancer Escape from T Cell Rejection Mediated by Indoleamine 2,3-Dioxygenase |
JUL 2002 |
13 pages |
| Authors:
Scott J. Antonia; UNIVERSITY OF SOUTH FLORIDA TAMPA
|
| We performed research to support our hypothesis that human breast cancers have the capacity to evade a T cell mediated rejection at least in part by inducing the expression of an immunosuppressive enzyme called indoleamine 2,3-didoxygenase (IDO). Both of the objectives proposed in the original application were met. Using RT-PCR, we were able to demonstrate in a series of human breast tumors that IDO was expressed in the majority of ... |
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| An Analysis of the Brain Drain Phenomenon in the Field of Development of Chemical and Biological Weapons in Russia During the 1990s |
JUN 2002 |
|
| Authors:
Shalkovskyi Volodymyr; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
 | Proliferation of chemical and biological weapons (CBW) is one of the most dangerous challenges in the modern world. Among the countries that developed CBW, the most advanced programs were in the former Soviet Union. At the beginning of the l99Os, Russia inherited most of the main centers of CBW production and development from the former Soviet Union. The Russian government terminated most CBW programs during the l99Os, leaving scientific personnel ... |
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| Redressing National Guard Personnel Shortages: Umanned Aerial Vehicles |
09 APR 2002 |
39 pages |
| Authors:
Ruth A. Gilbert; ARMY WAR COLL CARLISLE BARRACKS PA
|
| The National Guard's mission is continually transforming and must do so to stay viable and meet the Nation's needs. The National Guard's mission of Homeland Security may include the war on drugs, defense against terrorism on high-value targets, and border security for our national, territorial, and state borders. In view of the tragedy on 11 September 2001, the National Guard's mission, under the auspices of homeland security, is continually expanding ... |
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| IRST XML NAMESPACE: THE FOUNDATION OF ISRT CAPABILITY, |
FEB 2002 |
|
| Authors:
JERRY WILSON; SPACE AND NAVAL WARFARE SYSTEMS CENTER SAN DIEGO CA
|
| (U) THIS PAPER IS PUBLISHED FROM THE SLIDES USED BY THE PRESENTER IN HIS PRESENTATION AT THE MEETING. THERE IS NO ABSTRACT FOR THE PAPER BUT THE TOPIC APPEARS TO BE SUMMED UP IN THE FIRST SLIDE WHICH IDENTIFIES THE CAPABILITY TO IMPROVE COMMANDER SITUATIONAL AWARENESS BY ESTABLISHING INTEGRATED COMMAND, CONTROL, AND ALL SOURCE INTELLIGENCE FUSION CAPABILITIESW THAT PROVIDE A COMMON ANTITERRORISM/FORCE PROTECTION PICTURE. THE AUTHOR CLAIMS THAT THE CRITICAL ... |
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| Plastic Optoelectronics: Injection Lasers Fabricated from Soluble Semiconducting Polymers |
2002 |
22 pages |
| Authors:
Alan J. Heeger; CALIFORNIA UNIV SANTA BARBARA
|
| Report includes the following principal accomplishment: Polymer Lasers, Field Effect Transistors (FETs) with two different metals as source and drain electrodes, and Polymer FETs with high current density. A list and 1 copy of 11 publications are included. A copy of the patent filed and issued on work that resulted from support from AF49620-02-1-0127 is also included. |
|
| Channel Recessed 4H-SiC MESFETs with Ft o f14.5GHz and F max of 40GHz |
2002 |
8 pages |
| Authors:
Ho-Young Cha; Christopher I. Thomas; Goutam Koley; Hyungtak Kim; Lester F. Eastman; CORNELL UNIV ITHACA NY SCHOOL OF ELECTRICAL AND COMPUTER ENGINEERING
|
| Channel recessed 4H-SiC MESFETs have demonstrated excellent small signal characteristics and the effect of SiN4%4 passivation on these devices has been studied in this work. A saturated current of 250-270 mA/mm and a maximum transconductance of 40-45 mS/mm were measured for these devices. The 3-terminal breakdown voltage Vds ranges from 120 V to more than 150 V, depending on gate-drain spacing. 2 x 200 devices with 0.45 micronm gate length ... |
|
| Design of GaN/A1GaN HEMT Class-E Power Amplifier Considering Trapping and Thermal Effects |
2002 |
9 pages |
| Authors:
Syed S. Islan; A. F. Anwar; CONNECTICUT UNIV STORRS DEPT OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE
|
| A microwave class-E power amplifier using AlGaN/GaN HEMT as the switching device is reported by incorporating trapping and thermal effects in the large-signal device model. The load network of the class-E amplifier is designed by considering more realistic exponential decay of the drain current during fall time and finite quality factor of the resonant circuit to incorporate the nonidealities of the active device and passive components. With 9V supply voltage, ... |
|
| Monte Carlo Simulation of InGaAs/InA1As HEMTs with a Quantum |
2002 |
7 pages |
| Authors:
Bo Wu; Ting-wei Tang; MASSACHUSETTS UNIV AMHERST DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
| In Monte Carlo simulation of high electron mobility transistors (HEMTs), how to position the source and drain contacts will significantly affect the drain current. Unlike many Monte Carlo (MC) simulations of HEM% in the past, in this work, the source and drain contacts are placed on the top of the caps as in the real device instead of on the side adjacent to the channel. In addition, to take quantum ... |
|
| RF and DC Characteristics of Low-Leakage InAs/A1Sb HFETs |
2002 |
6 pages |
| Authors:
B. Brar; G. Nagy; J. Bergman; G. Sullivan; P. Powell; CALIFORNIA UNIV SANTA BARBARA
|
| InAs/AlSb HFETs with excellent RF and DC properties are reported. The drain currents are 75OmA/mm with peak transconductance gm of 1.1 S/mm. The gate leakage in is below lnA/sq.micronmeter for low gate bias. The threshold voltages of 0.25 micronmeter and 0.5 micronmeter gate-length devices are -2.5 and -1.5 V respectively, indicating short channel effects are present. Small- signal measurements on a 0.25 micronmeter gate-length device show f of 120 GHz ... |
|
| Dependence of Power and Efficiency of A1GaN/GaN HEMT's on the Load Resistance for Class B Bias |
2002 |
8 pages |
| Authors:
V. Kaper; V. Tilak; B. Green; T. Prunty; J. Smart; L. F. Eastman; J. R. Shealy; CORNELL UNIV ITHACA NY SCHOOL OF ELECTRICAL AND COMPUTER ENGINEERING
|
| The material properties of GaN and the AlGaN/GaN heterostructure such as high breakdown field and high sheet charge density, allow AlGaN/GaN HEMTs to be operated at significantly higher drain bias voltages as compared to other Ill-V compound semiconductor FETs 1. As expected, larger RF voltage and current swings result in higher nonnalized output power at microwave frequencies. AlGaN/GaN HEMT's are capable of generating output power density in excess of 10W/mm ... |
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| Hydrologic, Sediment, and Biological Data Associated with Irrigation Drainage in the Middle Green River Basin, Utah and Colorado, Water Years 1991-2000 |
2002 |
121 pages |
| Authors:
Ryan C. Rowland; David V. Allen; Doyle W. Stephens; James W. Yahnke; Nathan L. Darnall; Bruce Waddell; DEPARTMENT OF THE INTERIOR WASHINGTON DC
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| Hydrologic, sediment, and biological data were collected in the middle Green River basin in eastern Utah from 1991 to 2000 in an effort to monitor the effects of irrigation drainage on wetland areas and streams, aid in the development of remediation plans, and evaluate the effectiveness of selenium remediation efforts at Stewart Lake Waterfowl Management Area (WMA). Data consist primarily of selenium concentrations in surface water, ground water, bottom sediment, ... |
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| Performance of Channels with Compound Cross Sections for Channel Restoration Design (with) nx2 Software (CD-ROM) |
OCT 2001 |
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| Authors:
Colin R. Thorne; Philip J. Soar; NOTTINGHAM UNIV (UNITED KINGDOM) DEPT OF GEOGRAPHY
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| ELECTRONIC FILE CHARACTERISTICS: 47 files; text, video and software; Audio-Video Interleave and ASCII text files, and nx2 software. PHYSICAL DESCRIPTION: 1 computer laser optical disc (CD-ROM); 4 3/4 in.; 7.36 MB. SYSTEMS DETAIL NOTE: IBM-clone PC-compatible. ABSTRACT: The design of stable channels with mobile bed materials and natural attributes poses particular problems in the case of multi-functional restoration schemes. Often, it is desired to restore the natural functions of a ... |
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| Engineering and Design. Checklist for Hazardous Waste Landfill Cover Design |
30 SEP 2001 |
68 pages |
| Authors:
Dwight A. Beranek; CORPS OF ENGINEERS WASHINGTON DC
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| This engineer technical letter transmits a document for the design of landfill covers at hazardous waste sites. The document was developed to aid in project planning, scheduling, and budgeting; scoping pre-design investigations and architect/engineer services; as a guidance document for the design of landfill covers; and as a source for technical references. |
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| Watershed Boundaries and Relationship Between Stream Order and Watershed Morphology at Fort Benning, Georgia |
SEP 2001 |
40 pages |
| Authors:
Mark R. Graves; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING RESEARCH LAB
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| This paper describes the procedures followed to develop a detailed watershed database for Fort Benning, Georgia, and the surrounding area. In addition, the relationship between watershed morphology and stream order was examined. Watershed order and a number of variables describing surface topography and the network were computed and statistical analysis procedures were used to develop a predictive relationship. Watershed boundaries were computed from a digital elevation model and assigned an ... |
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| Effect of Water Content and Sea Salt on Seismoacoustic Waves in Beach Sand |
SEP 2001 |
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| Authors:
Jacques R. Chamuel; SONOQUEST ADVANCED ULTRASONICS RESEARCH WELLESLEY HILLS MA
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| New findings are presented providing physical insight on the effect of moisture and sea salt on high-frequency seismoacoustic waves in beach sand. Quantitative results reveal that the velocity of high-frequency compressional waves increases by about 8% as the water content is decreased by 18% from full saturation 1-3. This increase in velocity is in contrast with the Biot-Gassmann theory which predicts that the velocity of low-frequency compressional waves decreases by ... |
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| Market Investigation for Advanced Engine and Powertrain Lubricants |
AUG 2001 |
22 pages |
| Authors:
Allen S. Comfort; ARMY TANK-AUTOMOTIVE RESEARCH AND DEVELOPMENT CENTER WARREN MI VETRONICS TECHNOLOGY AREA
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| The design of the Future Combat Systems (FCS) and Interim Force are expected to push the envelope of the capabilities of current military engine and powertrain lubricants. These vehicles are expected to have high heat soak back due to limited space constraints increased power density, and increased range requirements. Current military engine and powertrain lubricants simply cannot perform under the high temperatures, loads, and range that future combat systems will ... |
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Reports by Keyword(s)
DRAINAGE
