| Thin Coatings of Polymeric Carbon and Carbon Nanotubes for Corrosion Protection |
Feb-2009 |
17 pages |
| Authors:
Zafar Iqbal; NEW JERSEY INST OF TECH NEWARK
|
 | SUMMARY: Three types of nanotechnology-based passive and smart barrier coatings for corrosion protection discussed (1) Plasma-deposited conducting carbon polymer PPN can be used to protect small device or engine components and has been demonstrated to protect PEM fuel cell current collecting bipolar metal plates; (2) Carbon nanotube pints/links can form smart protective coatings via p-n junction layers which can electrically sense coating damage due to corrosion (3) semiconducting, thermochromic polydiacetylene ... |
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| Investigation of the Interaction of Superparamagnetic Nanoparticles and Nonmagnetic Nanoparticles with Cell Membranes |
Jan-2009 |
9 pages |
| Authors:
Conrad M Williams; MORGAN STATE UNIV BALTIMORE MD
|
| The investigation on the interaction of superparamagnetic nanoparticles with cell membranes was divided into three phases: the synthesis and characterization of the magnetic and structural properties, surface functionalization of the particles, and ferrofluid studies of the particles in the presence of a slowly varying magnetic field. Two methods were explored to synthesize the superparamagnetic nanoparticles used in this investigation to achieve a distribution in particle size. Chemical synthesis and microwave ... |
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| Initial Training of Surface Warfare Officers: A Historical Perspective from World War II to 2008 |
12-Dec-2008 |
90 pages |
| Authors:
James T Robinson; ARMY COMMAND AND GENERAL STAFF COLL FORT LEAVENWORTH KS
|
| This thesis will examine how Surface Warfare Officers (SWO) received their initial post-commission training beginning with the end of World War II and ending with the training program as of September 2008. Specifically, this thesis examines the reasons why there was no initial SWO training after commissioning and what changed to require initial training. The discussion also addresses the effects of changing the commissioning source to a mix of Naval ... |
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| Polarization Vision and the Development of Retinal Network Models. Neuronal Information Transfer Functions from Cones and Horizontal Cells to Bipolar Cells |
01-Jan-2008 |
31 pages |
| Authors:
Craig Hawryshyn; Maarten Kamermans; VICTORIA UNIV (BRITISH COLUMBIA)
|
| The visual system has an extraordinary processing capability. Often the vertebrate visual system surpasses man-made imaging devices in flexibility and performance. Using knowledge of retinal physiology and retinal information transfer schemes will lead to the development of very flexible and high performance imaging devices. The overall objective of the program is to move towards the development of polarization chip technology for use in imaging devices in autonomous vehicles performing under ... |
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| Transport Imaging for the Study of Nanowires and Related Nanostructures |
DEC 2007 |
105 pages |
| Authors:
Ang G. Hwee; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The goals of this thesis are to demonstrate the operation of a near-field scanning microscope (NSOM) inside a scanning electron microscope (SEM) to collect spatially resolved luminescence and to image transport on nano-scale structures particularly nanowires. The SEM is used to generate localized charge and the NSOM is used to observe the motion of the excess charge due to diffusion and/or drift via its recombination emission. This will allow direct ... |
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| Water Maser Kinematics in the Jet of OH 12.8-0.9 |
10 AUG 2007 |
11 pages |
| Authors:
David A. Boboltz; Kevin B. Marvel; NAVAL OBSERVATORY WASHINGTON DC
|
| We present Very Long Baseline Array observations of the kinematics of the water masers associated with OH 12.8-0.9, the fourth member of the so-called water-fountain class of sources. We find that the masers occupy two distinct regions at the ends of a bipolar jetlike structure oriented north-south, with the blue-shifted masers located to the north and the red-shifted masers to the south. The masers are distributed along arc-like structures 12-20 ... |
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| Low Power 256K MRAM Design |
2006 |
7 pages |
| Authors:
Russell Beech; Robert Sinclair; NVE CORP EDEN PRAIRE MN
|
| A low power Magnetoresistive Random Access Memory (MRAM), that uses a novel Sandwich-Spin Dependent Tunneling (SSDT) memory bit is described. The SSDT bit combines a sandwich storage structure with tunneling magnetoresistance readout. A single, bi-polar write current is used to write the bit. A write select transistor, in the memory cell, selects a single bit for writing - thereby eliminating half-select conditions. Antiferromagnetic coupling in the sandwich film minimizes the ... |
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| Self-Organizing Batteries |
16 DEC 2005 |
|
| Authors:
Yet-Ming Chiang; MASSACHUSETTS INST OF TECH CAMBRIDGE
|
 | This research aimed to use colloidal self-organization to create complete bipolar electrochemical devices. In this approach, repulsive and attractive surface forces are introduced within device structures to form: nanoscale electrochemical junctions between electronically conductive anodes and cathodes; electronically conductive networks of storage materials particles; and electrical connections to the external circuit via selective attachment of particles to current collectors. Rechargeable lithium batteries were used as a testbed device for this ... |
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| Laser-Based Fuel Cell Manufacturing for Thermal Management |
12 OCT 2005 |
11 pages |
| Authors:
Joseph J. Beaman; Richard H. Crawford; Daivd Bourell; Kristin L. Wood; TEXAS UNIV AT AUSTIN DEPT OF MECHANICAL ENGINEERING
|
| Previous work in this research demonstrated the feasibility of fabrication of proton exchange membrane (PEM) fuel cell bipolar plates by an indirect selective laser sintering (SLS) route. Properties of the SLS bipolar plate, such as flexural strength, corrosion resistance and gas impermeability, etc. are quite promising and satisfactory. However, initial results showed that there was still room for the improvement in electrical conductivity. The first objective here is to investigate ... |
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| Bipolar Jet Growth and Decline in Hen 3-1341: A Direct Link to Fast Wind and Outburst Evolution |
28 SEP 2005 |
6 pages |
| Authors:
U. Munari; A. Siviero; A. Henden; NAVAL OBSERVATORY WASHINGTON DC
|
| We report on and investigate the evolution and disappearance in the symbiotic star Hen 3-1341 of collimated bipolar jets, which take the form of symmetrically displaced components of emission lines. From modelling of the emission-line spectrum it turns out that the accreting white dwarf (WD) in quiescence has T WD ^ 1.2 10(5) K and R WD ^ 0.14 R. for a luminosity of 3.8 10(3) L. and it is ... |
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| Self-Activated Micro Direct-Methanol Fuel Cell (muDMFC) at Near Room Temperature |
15 JUN 2005 |
53 pages |
| Authors:
|
| This research project was focused on the development and testing of Micro Direct-Methanol Fuel Cells (Micro DMFC). A Si-based Micro DMFC was developed and its electrochemical characteristics studied. The peak power density reached 50 mW/sq cm at 60 deg C. A new MEA design was successfully developed to mitigate MeOH crossover without requiring novel membranes. A Micro DMFC was also fabricated by using photochemically etched stainless steel bipolar plates and ... |
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| Catalysis, Architecture and the Electrochemical Performance of Microfibrous Cathodes for Hydrogen Peroxide Based Fuel Cells |
30 DEC 2004 |
31 pages |
| Authors:
Russell R. Bessette; Charles J. Patrissi; Maria G. Medeiros; Louis G. Carreiro; Yong K. Kim; Steven P. Tucker; Craig M. Deschenes; Christopher N. LaFratta; Michelle M. Dunnell; Delmas W. Atwater; MASSACHUSETTS UNIV DARTMOUTH MA DEPT OF CHEMISTRY AND BIOCHEMISTRY
|
| A novel cathode morphology has been developed for use in magnesium- hydrogen peroxide semi-fuel cells. A direct electrostatic flocking method is used to prepare the carbon microfiber arrays that are subsequently catalyzed with a Pd/Ir alloy by electrochemical deposition. The microfibers protrude from a current collector like the bristles of a brush. Flocking under different voltage field strengths and in various atmospheres is reported upon. A pulse potential deposition technique ... |
|
| Banquet Talk: Area-Time-Power Tradeoffs in Computer Design: The Road Ahead |
30 SEP 2004 |
34 pages |
| Authors:
Michael J. Flynn; STANFORD UNIV CA
|
| SUMMARY: Embedded processors are the major growth area with obvious challenges: 1) 10x speed without increasing power; 2) 10 to the minus 6th less power with the same speed; 100x circuit complexity with same design effort. Beyond this the real challenge is in system design: new system concepts, interconnect technologies, IP management and design tools. |
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| Reduced Power Consumption in GaAs-Based Bipolar Cascade Lasers |
AUG 2002 |
12 pages |
| Authors:
W. J. Siskaninetz; T. N. Dang; T. R. Nelson; J. E. Ehret; J. E. Van Nostrans; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH SENSORS DIRECTORATE
|
| A systematic study of GaAs tunnel junctions for use in bipolar cascade laser diodes was performed. We investigate the current voltage characteristics of individual degenerately doped n(+) and p(+) regions grown by MBE and then place the most promising designs within the individual laser substructures. This has resulted in a 1 V reduction in operating voltage, as verified by comparing the lasing characteristics of several edge-emitting laser devices. |
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| Shaping the Engineer Force for the Asymmetric Threat |
21 MAY 2002 |
79 pages |
| Authors:
Nicholas W. Katers; ARMY COMMAND AND GENERAL STAFF COLL FORT LEAVENWORTH KS SCHOOL OF ADVANCED MILITARY STUDIES
|
| This monograph looks at the current state of the divisional engineer capability in both the heavy and light U.S. Army divisions. Its intent is to determine whether or not the divisional engineers are sufficiently capable of dealing with the challenges of the emerging asymmetric environment. The central theme behind this investigation is to investigate how world has changed since the end of the cold war and whether or not Army ... |
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| US Intervention in Failed States: Bad Assumptions=Poor Outcomes |
2002 |
16 pages |
| Authors:
Thomas G. Knight; NATIONAL WAR COLL WASHINGTON DC
|
| The purpose of this paper will be the application of the Deibel Model, in particular the first level (assumptions) to the problem of failed states and the US, with an objective of identifying future threats and opportunities. The past 20 years have witnessed, among other events, the end of the Cold War, with a corresponding destabilization of the existing bipolar system that maintained a semblance of international order for almost ... |
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| Contracted Logistics Support in Operational Environments: The Legal Issues and Their Effects on the Decision to Outsource |
DEC 2001 |
110 pages |
| Authors:
John T. Gutierrez; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Since the birth of the republic, the United States has relied on contractors on the battlefield to meet the shortfalls of the military's logistical system. The use of contractors has proven to be an integral part of the U.S. Armed Forces' warfighting capability. With the demise of the Soviet Union, the world has dynamically changed. No longer is the world in a bipolar power struggle over political ideologies. The post-Cold ... |
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| Laplacian Electrode to Record Small Bowel Myoelectrical Activity From Abdominal Surface |
25 OCT 2001 |
|
| Authors:
G. Prats-Boluda; J. L. Martinex; J. Silvestre; F. J. Saiz; J. L. Ponce; UNIVERSIDAD POLITECNICA DE VALENCIA (SPAIN) DEPT OF ELECTRICAL ENGINEERING
|
| The aim of this study is to develop a system to record small intestine myoelectric activity (electroenterogram) from abdominal surface. The difficult anatomic access is a technical problem for monitoring intestinal activity, therefore most methods are invasive. It results in many problems like the low amplitude of the signal recorded and physiological interferences captured. In order to avoid these troubles, and to estimate the location of the small intestine point ... |
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| Identification of the Slow Wave of Small Bowel Myoelectrical Activity by Surface Recording |
25 OCT 2001 |
|
| Authors:
J. L. Martinez-De-Juan; F. J. Saiz; J. Silvestre; J. L. Ponce; UNIVERSIDAD POLITECNICA DE VALENCIA (SPAIN) DEPT OF ELECTRICAL ENGINEERING
|
| The bioelectrical signal (electroenterogram) is recorded at the abdominal surface of Beagle dogs with the aim of detecting the slow wave of small bowel myoelectrical activity. Electroeuterogram comprises two signals: the slow wave, which is permanently present and establishes the maximum rate of intestinal contraction, and a series of rapid activity peaks generated at the plateau of the slow wave when the small bowel contracts, Two biosignals were recorded using ... |
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| Multiple Probe Hepatic Radio-Frequency Ablation: Ex-Vivo Experiments in the Porcine Model |
25 OCT 2001 |
|
| Authors:
D. Haemmerich; J. G. Webster; F. T. Lee Jr.; A. W. Wright; D. M. Mahvi; WISCONSIN UNIV-MADISON
|
| Radio-frequency (RF) ablation is an important means of treatment of non-resectable primary and metastatic liver tumors. The RF ablation of any but the smallest tumor requires the use of multiple overlapping treatment zones. Commercially available RF ablation generators, unlike cryoablation (a method of tumor destruction that utilizes cold rather than heat), are only capable of driving a single RF probe at a time. Using multiple probes simultaneously in RF ablation ... |
|
| Feasibility Analysis for an Environmental Nickel-Metal Hydride Aircraft Battery |
AUG 2000 |
36 pages |
| Authors:
John R. Fenter; GRC INTERNATIONAL INC FAIRBORN OH
|
| Nickel-Metal Hydride prismatic cells have been designed, fabricated, and characterized for performance across the temperature range of -40 C to + 70 C. The optimized designs were validated in controlled laboratory conditions and under simulated environmental testing conditions. All aspects of the cells were evaluated and selected optimization was designed into the cells to advance the Ni-MH technologies to attain the program target goals. Electrode formulations, processes, electrolyte percentages, separator ... |
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| America's Grand Strategy Choices |
10 APR 2000 |
52 pages |
| Authors:
Rolf A. Siegel; ARMY WAR COLL CARLISLE BARRACKS PA
|
| The demise of the Soviet Union brought an end to the Cold War, the bipolar structure of the international system, and to America's grand strategy of containment. Over the past decade, America has struggled to define its role in the post-Cold War era. The purpose of this paper is to research America's grand strategy choices. Grand strategies are executed within a strategic construct so the ... |
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| Performance and Evaluation of Bipolar Fuel Cell Stacks |
FEB 2000 |
24 pages |
| Authors:
Deryn Chu; Rongzhong Jiang; Charles Walker; Richard Jacobs; Krist Gardner; ARMY RESEARCH LAB ADELPHI MD
|
| Under a joint technology planning annex (TPA) agreement, fuel cell groups at the U.S. Army Research Laboratory (ARL) and the U.S. Army Communications-Electronics Command (CECOM) worked together to develop Army power sources for soldier applications. Two 50-W bipolar fuel cell stacks designed by CECOM were extensively evaluated. The performance of the stacks depended significantly on the environmental temperature. Decreasing environmental temperature granted better heat ... |
|
| Hot Carrier Thermometry in Heterostructures. Carrier Heating in Semiconductor Lasers |
20 JAN 2000 |
66 pages |
| Authors:
Gregory Belenky; STATE UNIV OF NEW YORK AT STONY BROOK RESEARCH FOUNDATION
|
| We consider both theoretically (intersubband lasers) and experimentally (bipolar double heterostructure laser) the physical phenomena responsible for the carrier heating effect Electron relaxation by polar excitation (LO-phonons and plasmons) was studied as a key process which determines the high-temperature operation of intersubband lasers. A simplified model for intrawell LO-phonon-assisted relaxation processes in an asymmetric one-well/one-barrier intersubband laser heterostructure was developed. A new ... |
|
| Magnetic Helicity Generation by Solar Differential Rotation |
01-Jan-2000 |
|
| Authors:
C R DeVore; NAVAL RESEARCH LAB WASHINGTON DC LAB FOR COMPUTATIONAL PHYSICS AND FLUID DYNAMICS
|
| Observations of sunspots, active regions, filaments, coronal arcades, and interplanetary magnetic clouds indicate that the Sun preferentially exhibits left-handed, negative-helicity features in its northern hemisphere, and their opposite counterparts in the south, independent of sunspot cycle. We investigate quantitatively the generation of magnetic helicity by solar differential rotation acting on emerged bipolar sources of flux, using analytical and numerical methods. We find that the vast majority of bipoles absorb negative ... |
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| Dynamical Formation and Stability of Helical Prominence Magnetic Fields |
01-Jan-2000 |
|
| Authors:
C R DeVore; Spiro K Antiochos; NAVAL RESEARCH LAB WASHINGTON DC LAB FOR COMPUTATIONAL PHYSICS AND FLUID DYNAMICS
|
| We numerically simulated an initially bipolar magnetic field subjected to shear motions concentrated near and parallel to the photospheric polarity inversion line. The simulations yield three principal results: (1) For footprint displacements comparable to the bipole's depth, the sheared core field acquires a dipped geometry that can support cool prominence material against gravity. This confirms previous force-free equilibrium models for forming dipped prominence fields by differential shear, and extends them ... |
|
| Prediction and Verification of Internal Electric Current Distribution in Muscle From Surface Application |
26 JUL 1999 |
233 pages |
| Authors:
William A. Waugaman; AIR FORCE INST OF TECH WRIGHT-PATTERSONAFB OH
|
| The use of surface electrical stimulation therapy for clinical rehabilitation has created the need for an improved modeling method to predict internal current density. Some stimulation protocols do not produce measurable physiological effects, such as muscle contraction. Therefore, traditional response-based current density modeling cannot be used. Additionally, lumped circuit models do not provide the resolution needed to optimize electrode size, shape, and placement. In this study, a method was developed ... |
|
| A Dendritic Model of Coincidence Detection in the Avian Brainstem |
01-Jan-1998 |
25 pages |
| Authors:
Jonathan Z Simon; Catherine E Carr; Shihab A Shamma; MARYLAND UNIV COLLEGE PARK INST FOR SYSTEMS RESEARCH
|
| The coincidence detector neurons in the auditory brainstem detect interaural time differences (ITDs). Inspired by a minimal biophysical model [Agmon-Snir et al, Nature 393, 268-272 (1998)], we constructed a model using the NEURON environment. ITD coding was improved when the inputs from both ears were located on the bipolar dendrites and segregated over having both inputs on the soma. Thus the model behaves both like the in vivo coincidence detectors ... |
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| Evaluation of Bipolar Pb-Acid Batteries for Aircraft Applications |
NOV 1997 |
35 pages |
| Authors:
Gary Loeber; James Malone; Cameron Riepenhoff; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH PROPULSION DIRECTORATE
|
| An effort was undertaken by WL/POOB to evaluate bipolar lead-acid (Pb-Acid) batteries for high power density, high voltage applications such as the more electric aircraft (MEA). This technology is also being studied for use as the power source for electric vehicles. These batteries were delivered under developmental programs with Pinnacle Research Institute (PRI) and Johnson Controls, Inc. (JCI). The PRI program was jointly funded by Wright-Patterson Air Force Base and ... |
|
| Color Variable Bipolar/AC Light-Emitting Devices Based on Conjugated Polymers |
20 SEP 97 |
16 pages |
| Authors:
Y. Z. Wang; D. D. Gebler; D. K. Fu; T. M. Swager; A. J. Epstein; OHIO STATE UNIV COLUMBUS DEPT OF PHYSICS
|
| There is increased interest in developing color variable light emitting devices. We report here the fabrication of color variable bipolar/AC light-emitting devices based on conjugated polymers. The devices consist of blends of pyridine-phenylene and thiophene-phenylene based copolymers sandwiched between the emeraldine base from and the sulfonated form of polyaniline. ITO and Al are used as electrodes. The devices operate under either polarity of driving voltage with different colors of light ... |
|
| Operational Medicine from the Sea - A Revolution in Medical Affairs |
13 JUN 1997 |
24 pages |
| Authors:
James T. Need; NAVAL WAR COLL NEWPORT RI
|
| The demise of the bi-polar world has changed forever the face of future war for the United States. While our nation is no longer threatened by total nuclear destruction, the variety and complexity of future limited wars will produce tremendous security challenges as we move into the next century. If the US is to remain engaged in world affairs, then it must maintain an expeditionary military capability in order to ... |
|
| Warriors Don't Do Windows? Why Say?, Since When? |
APR 1997 |
66 pages |
| Authors:
Charles W. Hasskamp; AIR UNIV MAXWELL AFB AL
|
| The end of the Cold War has provided the United States a respite from the focused geopolitical and military policy of "containment." Unfortunately, without the stability coerced by a bipolar world, the shutters have come off and the shades have gone up on the windows to a new world disorder. The world has a multipolar, interdependent, global economy, but the legacy of weapons of mass destruction, terrorism, drug trafficking, religious ... |
|
| Impact of the Revolution in Military Affairs on Education and Training Professional Structures in Land Forces |
APR 1997 |
65 pages |
| Authors:
Alojz Jehart; INDUSTRIAL COLL OF THE ARMED FORCES WASHINGTON DC
|
| The bipolar order had its myths and meanings, imparted to it by the reality of power, both: within the blocs and between them. With the collapse of these blocs regionalism has triumphed over globalism but without bringing any order. Consequences of the collapse of the bipolar system for power and meaning are less studied. During the Cold War the superpowers kept in form by training against each other. When the ... |
|
| SiC Discrete Power Devices |
14 JAN 97 |
52 pages |
| Authors:
B. J. Baliga; B. Vijay; P. M. Shenoy; R. F. Davis; H. S. Tomozawa; NORTH CAROLINA STATE UNIV AT RALEIGH
|
| A first order analysis was performed to determine the voltage-ratings upto which 4H-SiC, 6H-SiC unipolar devices (FETs) have lower forward voltage drops than silicon, 4H-SiC, 6H-SiC bipolar devices (IGBTs). It was found that 4H-SiC unipolar devices have the lowest forward voltage drops upto a voltage- rating of 4500V. The problems associated with a SiC power MOSFET are presented and alternatives to the power MOSFET, the JFET and the U-MESFET are ... |
|
| Retinal Neurobiology and Visual Processing |
03 OCT 96 |
27 pages |
| Authors:
David Copenhagen; FEDERATION OF AMERICAN SOCIETIES FOR EXPERIMENTAL BIOLOGY BETHESDA MD
|
| The sessions were organized as follows: (1) Visual Performance, (2) Signal Transduction and Modulation in ON Bipolar cells, (3) Mechanisms and Functions of Gap Junction Coupling, (4) Ionic Channels to Machines, (5) Synaptic Mechanisms in the Outer Plexiform Layer, (6) 'Potpourri' (Speakers selected from those who submitted poster abstracts), (7) GABAc Receptors, (8) Synaptic Processes in the Inner Plexiform Layer and (9) Ecology of Vision. The response to this conference ... |
|
| Retinal Neurobiology and Visual Processing |
03 OCT 96 |
27 pages |
| Authors:
David Copenhagen; FEDERATION OF AMERICAN SOCIETIES FOR EXPERIMENTAL BIOLOGY BETHESDA MD
|
| The sessions were organized as follows: (1) Visual Performance, (2) Signal Transduction and Modulation in ON Bipolar cells, (3) Mechanisms and Functions of Cap Junction Coupling, (4) Tonic Channels to Machines, (5) Synaptic Mechanisms in the Outer Plexiform Layer, (6) 'Potpourri' (Speakers selected from those who submitted poster abstracts), (7) CABAc Receptors, (8) Synaptic Processes in the Inner Plexiform Layer and (9) Ecology of Vision. The response to this conference ... |
|
| Optical Neural Networks Based on Distributed Holographic Gratings |
13 AUG 96 |
94 pages |
| Authors:
Yuri Owechko; HUGHES RESEARCH LABS MALIBU CA
|
| This final report describes research in optical neural networks performed at Hughes Research Laboratories under a three year DARPA sponsored contract the advantages of optics for neural network implementations, including high storage capacity, connectivity, and very fine grained parallelism, was demonstrated. The optical neurocomputer developed under this program is based on a new type of holography which we call multiple grating holography, in which this approach reduces crosstalk and improves ... |
|
| Double-Gate SOI/MOS Devices and Circuits in Hostile Environments |
JUL 96 |
204 pages |
| Authors:
Pascale Francis; UNIVERSITE CATHOLIQUE DE LOUVAIN LOUVAIN-LA-NEUVE (BELGIUM) LAB DE MICROELECTR ONIQUE
|
| Bulk silicon Complementary-Metal-Oxide-Semiconductor (CMOS) is the dominant market technology in the digital integrated circuit world with two main drivers: memory devices and microprocessors. In the bulk MOS technology, the interaction between the active devices and the semi-infinite substrate results in parasitic effects such as the latchup (the unwanted triggering of parasitic pnpn thyristors formed by CMOS bulk structures in their well) and large parasitic capacitances (inherent to the reverse-biased junctions ... |
|
| Triaxial Magnetic Heading Sensing Apparatus Having Magnetaresistors and Nulling Coils. |
21 MAY 1996 |
|
| Authors:
Steven J. Koerner; Anthony E. Lifur; Michael J. Wall; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| A triaxial magnetic heading sensing apparatus includes nulling coils and magnetoresistive sensors having inputs and outputs. The nulling coils are arranged in parallel relation to three orthogonal planes intersecting at a common center point. The sensors are disposed along orthogonal axes in parallel relation to the orthogonal planes and in close proximity to the center point. Each sensor has a bridge configuration balanced in the absence of an applied external ... |
|
| The Engineer in Military Operations Other Than War: A Critical Asset for American Leadership |
12 FEB 96 |
27 pages |
| Authors:
John L. Dettbarn Jr; NAVAL WAR COLL NEWPORT RI
|
| The recent shift from the bi-polar security environment of the Cold War to the current, more fluid multi-polar environment created a wake of turbulence and uncertainty throughout the world. This dynamic, diverse global environment generates many circumstances requiring American involvement, often in the form of Military Operations Other Than War (MOOTW). The Engineer's contribution at both the strategic and the operational levels for Military Operations Other Than War (MOOTW) is ... |
|
| Millimeter-Wave Network Analysis and Spectroscopy |
14 DEC 95 |
26 pages |
| Authors:
Mark Rodwell; CALIFORNIA UNIV SANTA BARBARA DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
| In the program 'Millimeter-Wave Network Analysis and Spectroscopy with Solid State Devices,' AFOSR/AASERT grant #F49620-92-J-0365 (associated with the AFOSR parent giant #F49620-92-J-0469) the following devices have been developed and experimental results obtained: Shock wave nonlinear transmission line (NLTL) pulse generators and NLTL gated sampling circuits have been built with 0.48 PS risetimes and 725 GHz bandwidths. Development of 500-100 GHz Schottky collector Heterojunction Bipolar Transistors were pursued, including device design, ... |
|
| Programmable Data Message Generation System. |
17 OCT 1995 |
20 pages |
| Authors:
Pablo M. Lopez; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| Signal messages to loads such as a missile weapon system, are transmitted as bipolar signals through high load communication lines at high voltage levels and within a wide operating frequency range. Such signal messages are based on digital data mixed by a multiplexer with computer controlled voltage level inputs and programmable frequencies to produce the bipolar signals of high voltage capable of driving loads as low as 50 ohms. |
|
| A United States Antisatellite Policy |
OCT 95 |
57 pages |
| Authors:
Roger C. Hunter; AIR UNIV MAXWELL AFB AL SCHOOL OF ADVANCED AIRPOWER STUDIES
|
| Whether to pursue the continued development of a United States antisatellite in the 199Os will prove a difficult choice for defense planners. Making a case for the weapon system in the bipolar world seems intuitively obvious to ASAT advocates. The US was faced with a formidable foe possessing weapons in superior numbers in many categories. The Soviet Union also recognized the force-multiplier effect space systems had for its forces made ... |
|
| Development of a Bipolar Lead/Acid Battery for the More Electric Aircraft |
SEP 95 |
93 pages |
| Authors:
Jennifer L. Rose; JOHNSON CONTROLS INC MILWAUKEE WI BATTERY GROUP
|
| This report summarizes the development work completed under contract F33615-91-C-2142 for the time period of September 1991 to September 1995. Initial work targeted the development of a filled polymeric composite substrate for use in a true bipolar lead acid battery. Efforts were refocused on metallic substrate technology in Month 33, and concluded with the delivery of battery systems to Wright Laboratory. |
|
| Development of a Bipolar Lead/Acid Battery for the More Electric Aircraft |
SEP 95 |
93 pages |
| Authors:
Jennifer L. Rose; JOHNSON CONTROLS INC MILWAUKEE WI BATTERY GROUP
|
| This report summarizes the development work completed under contract F33615-91-C-2142 for the time period of September 1991 to September 1995. Initial work targeted the development of a filled polymeric composite substrate for use in a true bipolar lead acid battery. Efforts were refocused on metallic substrate technology in Month 33, and concluded with the delivery of battery systems to Wright laboratory. p4 |
|
| Proton Exchange Membrane Fuel Cell Development with Lightweight Component Materials. Phase 1 |
20 JUL 95 |
37 pages |
| Authors:
Sandors Abens; ENERGY RESEARCH CORP DANBURY CT
|
| Although the Proton Exchange Membrane (PEM) fuel cell is a leading candidate for an automobile power source through meeting the zero emission requirement, its power density is currently an order of magnitude below the 400 W/kg criterion proposed by the Department of Energy. The major contributors to stack weight are the bipolar gas distribution plates. This effort, performed jointly by Energy Research Corporation (ERC) and Texas A&M University (TAM U), ... |
|
| Scattering and Radiation of High Frequency Sound in Water by Elastic Objects, Particle Suspensions, and Curved Surfaces |
29 JUN 95 |
36 pages |
| Authors:
Philip L. Marston; WASHINGTON STATE UNIV PULLMAN DEPT OF PHYSICS
|
| The research reported is principally in the areas: (A) Scattering of high-frequency sound or pressure impulses by elastic objects in water-- Experiments and theory are examined for scattering of pressure impulses and high-frequency sound by elastic objects in water. Improved capability for measuring the impulse response is discussed and examples given include: (1) the bipolar specular feature that reveals the mass-per-area of the shell; (2) the beating of low frequency ... |
|
| Competition and Conflict: Water Management in the Jordan River Basin |
JUN 95 |
100 pages |
| Authors:
Mary P. Hill; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| With the end of the Cold War, and the predictability of bi-polar power arrangements, the shape of global security will be required to change to face the emerging threats of the future. Changes to the global environment, through pollution, unrestrained population growth, and over-exploitation of existing resources, will be among these future threats. Regional security arrangements will be essential to controlling these threats, which know no territorial boundaries. It is ... |
|
| Low Cost Writable RFID Tag with MRAM Memory |
01 MAR 95 |
139 pages |
| Authors:
Jay L. Brown; NONVOLATILE ELECTRONICS INC EDEN PRAIRIE MN
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| The objective of this work was to show proof of concept for a writable RFID tag that used an integrated antenna and MRAM nonvolatile memory to store data. Circuit designs for the reader/writer unit and the the tag IC were completed during the work, and showed that the design concept was feasible. MRAM memory cells specifically designed for this low energy application were constructed and tested, and are clearly suitable ... |
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| The Effects of Ricin on the Heart and Coronary Arteries |
01 FEB 95 |
189 pages |
| Authors:
Casey P. Robinson; OKLAHOMA UNIV OKLAHOMA CITY COLL OF MEDICINE
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| Effects of ricin on rabbit heart, coronary arteries, and distribution of blood flow to various organs and tissues were investigated. Ricin increased cardiac output, and blood flow to most organs/tissues. Ricin was given 0.22 micrograms/kg and 48 hours later changes were determined. Ricin decreased sensitivities of coronary arteries to 5-HT- and histamine contractions, increased sensitivity to NE relaxations, increased maximal contractions, but did not alter ACh-induced relaxations. Ricin increased basal ... |
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