| Demonstration of the Anaerobic Fluidized Bed Reactor for Pinkwater Treatment at McAlester Army Ammunition Plant |
MAR 2005 |
53 pages |
| Authors:
Stephen W. Maloney; Robert L. Heine; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING RESEARCH LAB
|
 | This report documents a demonstration project conducted at McAlester Army Ammunition Plant in Oklahoma. The technology is based on anaerobic bacteria which attack dissolved explosives such as TNT and RDX at the nitro groups, converting them to amino groups. Once the explosives are transformed, they become amenable to aerobic degradation. This process functions as a pretreatment for the pinkwater, after which the effluent is discharged to an aerobic treatment plant ... |
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| The National Nanotechnology Initiative. Research and Development Leading to a Revolution in Technology and Industry. Supplement to the President's 2006 Budget |
MAR 2005 |
62 pages |
| Authors:
EXECUTIVE OFFICE OF THE PRESIDENT WASHINGTON DC NATIONAL SCIENCE AND TECHNOLOGY COUNCIL
|
| The National Nanotechnology Initiative (NNI) is a multi-agency U.S. Government program aimed at accelerating the discovery, development, and deployment of nanoscale science, engineering, and technology. As outlined in the recently completed NNI Strategic Plan, the NNI's goals are to maintain a world-class research and development (R&D) program; to facilitate technology transfer; to develop educational resources, a skilled workforce, and supporting research infrastructure and tools; and to support responsible development of ... |
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| Magnetic and Optical Properties of Ga(1-x)Mn(x)N Grown by Metalorganic Chemical Vapour Deposition |
17 FEB 2005 |
6 pages |
| Authors:
M. H. Kane; A. Asghar; C. R. Vestal; M. Strassburg; J. Senawiratne; Z. J. Zhang; N. Dietz; C. J. Summers; I. T. Ferguson; GEORGIA INST OF TECH ATLANTA SCHOOL OF MATERIALS SCIENCE AND ENGINEERING
|
| Epitaxial layers of Ga(1-x)Mn(x)N with concentrations of up to x = 0.015 have been grown on c-sapphire substrates by metalorganic chemical vapor deposition. No ferromagnetic second phases were detected via high-resolution x-ray diffraction. Crystalline quality and surface structure were measured by x-ray diffraction and atomic force microscopy, respectively. No significant deterioration in crystal quality and no increase in surface roughness with the incorporation of Mn were detected. Optical measurements show ... |
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| Chemical Plant Security |
14 FEB 2005 |
|
| Authors:
Linda-Jo Schierow; LIBRARY OF CONGRESS WASHINGTON DC CONGRESSIONAL RESEARCH SERVICE
|
 | Facilities handling large amounts of potentially hazardous chemicals (i.e., chemical facilities) might be of interest to terrorists, either as targets for direct attacks meant to release chemicals into the community or as a source of chemicals for use elsewhere. Because few terrorist attacks have been attempted against chemical facilities in the United States, the risk of death and injury in the near future is estimated to be low, relative to ... |
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| Bioinspired Materials for Compact Power Structures |
09 FEB 2005 |
20 pages |
| Authors:
Chad A. Mirkin; NORTHWESTERN UNIV EVANSTON IL DEPT OF CHEMISTRY
|
| This report accounts for the major scientific accomplishments of the above project from May 2002 to November 2004. The focus of this proposal was the development of methods and techniques for the assembly of 3-D nanoparticle lattices using a variety of nanoparticles and novel DNA-driven assembly techniques. Microorganisms and diatoms were used as templates for the hierarchical assembly of ordered 3-D nanostructures, and DNA-linked nanoparticles were shown to form organized ... |
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| The Isoazimuthal Perception of Sounds Across Distance: A Preliminary Investigation into the Location of the Audio Egocenter |
JAN 2005 |
|
| Authors:
Michael F. Neelon; Douglas S. Brungart; Brian D. Simpson; WISCONSIN UNIV-MADISON MEDICAL SCHOOL
|
| Evidence indicates that both visual and auditory input may be represented in multiple frames of reference at different processing stages in the nervous system. Most models, however, have assumed that unimodal auditory input is first encoded in a head-centered reference form. The present work tested this conjecture by measuring the subjective auditory egocenter in six blindfolded listeners who were asked to match the perceived azimuths of sounds that were alternately ... |
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| Heat Stress Induces a Biphasic Thermoregulatory Response in Mice |
2005 |
9 pages |
| Authors:
Lisa R. Leon; David A. DuBose; Clifford W. Mason; ARMY RESEARCH INST OF ENVIRONMENTAL MEDICINE NATICK MA THERMAL AND MOUNTAIN MEDICINE DIVISION
|
| Previous animal models of heat stress have been compromised by methodologies such as restraint and anesthesia that confound our understanding of the core temperature (Tc) responses elicited by heat stress. Using biotelemetry, we developed a heat stress model to examine. Tc responses in conscious unrestrained C57BL/6J male mice. Prior to heat stress acclimated > 4 weeks to Ta of 25oC. Mice were exposed to ambient temperature (Ta) of 39.5+/- 0. ... |
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| New Biocatalysts: Essential Tools for a Sustainable 21st Century Chemical Industry |
2005 |
42 pages |
| Authors:
DEPARTMENT OF ENERGY WASHINGTON DC
|
| This report represents the November, 1999 workshop efforts and subsequent contributions of 50 leading scientific and industry experts in biocatalyst use and development. The goal was to produce a roadmap, or strategic plan, for developing and utilizing a new generation of biocatalysts for the 21st Century. The focus of the work group was on the very complex chemical industry and such chemistry-related areas as the pharmaceutical and environmental sciences. Biocatalyst ... |
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| Bioreactor Based Bone Tissue Engineering: Influence of Wall Collision on Osteoblast Cultured on Polymeric Microcarrier Scaffolds in Rotating Bioreactors |
2005 |
6 pages |
| Authors:
Xiaojun Yu; Edward A. Botchwey; Elliot M. Levine; Soloman R. Pollack; Cato T. Laurencin; VIRGINIA UNIV CHARLOTTESVILLE DEPT OF CHEMICAL ENGINEERING
|
| Rotating bioreactors have been used to overcome the limitations of passive nutrient diffusion in three-dimensional (3D) constructs for tissue engineering of bone. It is hypothesized that conventional scaffolds undergo repeated wall collisions in rotating bioreactors, which may disrupt bone tissue formation. In this study, we investigated the effects of wall collision on osteoblastic cells cultured on a microsphere based scaffold of varying densities in comparison to water. The conventional heavier ... |
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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 ... |
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| Development of a Micro- and Nano-Fabrication Facility |
08 DEC 2004 |
6 pages |
| Authors:
Alexander Couzis; Lane Gilchrist; Charles Maldarelli; David Rumschitzki; Maribel Vazquez; CITY COLL OF THE CITY UNIV OF NEW YORK
|
| The purpose of this project was to develop the first multiuser micro and nanofabrication facility at The City College of New York (CCNY). Four pieces of equipment were acquired under this award: (i) Spin Coating System from Laurell Technologies; (ii) Ozone Stripper from Samco; (iii) Reactive Ion Etcher from Samco; and (iv) Evaporator/Sputtering system from Denton Vacuum. In addition, our school provided additional matching funds that enabled this research group ... |
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| Molecular Volume and Electronic and Vibrational Polarizibilities for Amorphous LaAlO3 |
01 DEC 2004 |
7 pages |
| Authors:
T. Busani; R. A. Devine; AIR FORCE RESEARCH LAB KIRTLAND AFB NM SPACE VEHICLES DIRECTORATE
|
| Grazing incidence x-ray reflectivity measurements are used to determine the density of sputter-deposited LaAlO and anodized LaAl films. Together with refractive index and dielectric constant measurements, it is demonstrated that a coherent picture emerges explaining the low dielectric constant of the amorphous films (~13) as compared to the single-crystal value (~26). The importance of molecular volume dependence of the electronic and vibrational molecular polarizabilities is underlined. |
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| A Novel Processing Technique for Growing Bulk Gallium Nitride Ingots From Gallium Melt |
DEC 2004 |
47 pages |
| Authors:
Mahendra K. Sunkara; Hongwei Li; Hari Chandrasekaran; Sreeram Vaddiraju; LOUISVILLE UNIV KY DEPT OF CHEMICAL ENGINEERING
|
| In summary, a new process is being developed to obtain free standing, large area, near single crystal quality GaN flake (highly oriented GaN films) promising as native substrates for homoepitaxial growth of device quality, low- defect density GaN layers. However, the experiments to date resulted only in GaN flakes of sizes around 1 sq cm due to the following reasons: (a) the wetting and flow of molten Ga affected the ... |
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| Coordinating Support of Fuels and Lubricant Research and Development (R&D) 2, Delivery Order 0001: Water Separation Methods Study |
DEC 2004 |
93 pages |
| Authors:
William F. Taylor; COORDINATING RESEARCH COUNCIL INC ALPHARETTA GA
|
| An aircraft turbine fuel Water Separation Methods validation program has been completed. In the study water separation methods measurements were for the first time experimentally compared against actual coalescence test results. This program was part of an extended study both of ways to improve the ASTM D 3948 MSEP test method and of the effectiveness of other water separation test methods. The effect of fuel quality on coalescence was measured ... |
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| Chemical Vapor Deposition Grown Single-Walled Carbon Nanotube Junctions for Nano-Electronics and Sensors |
DEC 2004 |
3 pages |
| Authors:
Sarah Lastella; Govind Mallick; Shashi P. Karna; Yung Joon; Chang Ryu; Pulickel Ajayan; David Rider; Ian Manners; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE
|
| Using an Fe-containing diblock copolymer as the catalyst single walled carbon nanotubes (SWNTs) have been grown on Si/SiO2 substrate by chemical vapor deposition technique. Atomic force microscopic image of the grown samples exhibit interesting junction architectures in the form of T. Y. and X of small- diameter (approximately 2mn) SWNT bundles. |
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| Needle-Free Inhalable Vaccine and Antibiotic Powder Aerosols |
15 NOV 2004 |
30 pages |
| Authors:
R. E. Sievers; J. L. Burger; S. P. Cape; COLORADO UNIV AT BOULDER DEPT OF CHEMISTRY AND BIOCHEMISTRY
|
| Multiple constituents can be incorporated in three fluids in a low volume cross to make heterogenous and homogenous nanoparticles and microparticles. " Pharmaceuticals, proteins, antibodies, and vaccines can be stabilized, dried, and micronized by a newly patented process, CAN-BD. " A SF nebulization, desolvation and coating method (CANBD) has been developed that can manufacture dry powders and coatings of many materials. " Coating and drying requires only seconds. " Water ... |
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| NiAl Bond Coats Made by a Directed Vapor Deposition Approach |
OCT 2004 |
11 pages |
| Authors:
Z.. Yu; D. D. Hass; H. N. Wadley; VIRGINIA UNIV CHARLOTTESVILLE DEPT OF MATERIALS SCIENCE AND ENGINEERING
|
| Intermetallic, nickel aluminide alloys are widely used as bond coat materials in thermal barrier coating systems applied to nickel base super alloy components. They are usually synthesized by a solid-state reaction diffusion heat treatment following the chemical vapor deposition of aluminum on the nickel rich substrate. Here, an electron beam directed vapor deposition (EB-DVD) technique is used to simultaneously evaporate nickel and aluminum and then reactively deposit NiAl bond coats ... |
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| Thermal Expansion of Ti-Containing Hydrogenated Amorphous Carbon Nanocomposite Thin Films |
16 SEP 2004 |
4 pages |
| Authors:
B. Shi; W. J. Meng; T. L. Daulton; NATIONAL SCIENCE FOUNDATION WASHINGTON DC
|
| The effective coefficients of thermal expansion (CTE) of Ti-containing hydrogenated amorphous carbon (Ti-C:H) thin films were measured. Ti-C:H thin films with compositions ranging from nearly pure alpha-C:H to nearly pure TiC were deposited on Si(100) substrates. Effective CTEs were determined from temperature induced changes in the curvature of film/substrate assemblies. Measured effective CTE values for Ti-C:H are 5.7 x 10(exp -6) K(exp -1), and show little dependence on the Ti ... |
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| Investigations of Vapor-Cell Clock Equilibration Following Initial Activation: A Progress Report |
SEP 2004 |
10 pages |
| Authors:
S. Herbulock; C. Klimcak; A. Presser; J. Milne; J. Camparo; AEROSPACE CORP LOS ANGELES CA
|
| Over the past several years, anecdotal evidence has grown indicating that Rb gas-cell frequency standards exhibit a long equilibration period of somewhere between 30 and 70 days following their initial activation. The mechanism driving this behavior is not well understood and has been the subject of debate. Generally, lamp intensity has also been observed to undergo a slow variation following the clock s turn-on, and since the clock s resonant ... |
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| Exploration of the Potential for Phytoremediation of Lead-Based-Paint- Contaminated Soil at Fort Lewis, WA |
SEP 2004 |
58 pages |
| Authors:
Elly P. Best; Kaaren N. Geter; Steven L. Larson; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS ENVIRONMENTAL LAB
|
| The current study was conducted to explore the potential for two phytoremediation strategies to remediate lead-based-paint- (LBP) contaminated soil from Fort Lewis, WA, i.e., phytoextraction and phytostabilization. The specific objectives were to (1) determine the potential for phytoextraction and phytostabilization of metals from Pb-contaminated soil from Fort Lewis in herbaceous plants, (2) evaluate the effects of the vegetation on the leachability of the soil, and (3) evaluate the influence of ... |
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| Development of a Physiologically-Based Pharmacokinetic Model of Trichloroethylene and Its Metabolities for Use in Risk Assessment |
SEP 2004 |
109 pages |
| Authors:
Tammie R. Covington; Harvey J. Clewell; Jeffrey W. Fisher; ENVIRON HEALTH SCIENCE INST RUSTON LA
|
| A physiologically based pharmacokinetic (PBPK) model was developed which provides a comprehensive description of the kinetics of trichioroethylene (TCE) and its metabolites, trichioroethanol (TCOH), and trichloroacetic acid (TCA), in the mouse, rat, and human, for both oral and inhalation exposure. The model includes descriptions of the three principal target tissues for cancer identified in animal bloassays: liver, lung, and kidney. Dose metrics that can be calculated with the model for ... |
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| Endurance Pump Test with MIL-PRF-83282 Hydraulic Fluid, Purified with Malabar Purifier |
JUN 2004 |
56 pages |
| Authors:
Shashi K. Sharma; Carl E. Snyder Jr.; Lois J. Gschwender; George W. Fultz; Timothy A. Jenney; DAYTON UNIV OH RESEARCH INST
|
| The possible deterioration of the fluid during use or the potential for the purifier to remove some of the performance improving additives from the fluid as well as the contaminants was investigated. Endurance aircraft hydraulic pump tests under carefully controlled conditions were previously conducted using hydraulic fluid purified with a rotating-disk and vacuum type purifier, the portable purifier manufactured by Pall Corporation, to assess the potential negative effect the fluid ... |
|
| Injection and Scattering of Polarized Spins at Nanoscale Polymer Interfaces |
31 MAY 2004 |
15 pages |
| Authors:
Arthur J. Epstein; OHIO STATE UNIV COLUMBUS DEPT OF PHYSICS
|
| We made excellent progress several directions. We demonstrated that V[TCNE]~2 is a room temperature fully spin polarized magnetic semiconductor of interest for spintronic applications, including spin valves. We increased the coercivity (which is crucial for spintronics device) of the parent material V[TCNE]~2 by doping with ions that have large magnetocrystalline anisotropy (Co, Fe, etc.). For Co and Fe substantially higher coercive fields, Hc, than the pure V[TCNE]2 (275 Oe for ... |
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| Complex-Shaped Microcomponents by the Reactive Conversion of Biological Templates |
27 MAY 2004 |
30 pages |
| Authors:
Kenneth H. Sandhage; Rajesh Naik; Morley Stone; GEORGIA INST OF TECH ATLANTA SCHOOL OFMATERIALS SCIENCE AND ENGINEERING
|
| This project has been aimed at: 1) identifying gas/solid reaction conditions for converting biologically-derived micro/nanotemplates into other oxides without a loss of the starting 3-D shape and fine features, and 2) evaluating the nanochemical/nanostructural evolution during such reactive conversion. The most significant accomplishments have been: 1) Development of an oxidation-reduction reaction process for converting biosilica-based micro/ nanoassemblies into MgO nanoparticle structures with a preservation of the starting 3-D shape and ... |
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| The Use of Wetting Agents/Fume Suppressants for Minimizing the Atmospheric Emissions from Hard Chromium Electroplating Baths |
MAR 2004 |
232 pages |
| Authors:
Kathleen Paulson; Craig Matzdorf; Stephen Scwartz; NAVAL FACILITIES ENGINEERING SERVICE CENTER PORT HUENEME CA
|
| This project demonstrates that a "third" generation wetting agent/ fume suppressant (WA/FS) chemical additive to hard chromium electroplating baths reduces hexavalent chromium airborne emissions to the environment and reduces employee occupational exposures in the electroplating shop. While emissions are important, maintaining material quality for tactical equipment is paramount, and the WA/FS has no negative effect on electroplating quality or basis metals. Further, once added to the electroplating bath, the WA/FS ... |
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| Reduced Air Emissions for Hard Chrome Plating at the NADEP NAS North Island, San Diego Using an Alternative Emission Control Technology |
26 FEB 2004 |
29 pages |
| Authors:
Terry Hutchins; PALM INTERNATIONAL INC LAVERGNE TN
|
| The Naval Air Systems Command Depot (NADEP) facility located on the Naval Air Station (NAS) North Island, San Diego, CA currently has five (5) hard chrome plating tanks in operation. The facility typically plates 3-5 million amp-hours per year and is identified as a Small Hard Chromium Electroplating Facility by the San Diego Air Pollution Control District. This presentation addresses the implementation of encapsulating tank covers, hereafter referred to as ... |
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| Logistic Fuel Processor Development |
JAN 2004 |
28 pages |
| Authors:
Reza Salavani; Aly H. Shaaban; Timothy Campbell; Mikel Sawyer; Richard Trotta; AIR FORCE RESEARCH LAB TYNDALL AFB FL MATERIALS AND MANUFACTURING DIRECTORATE
|
| The Air Base Technologies Division of the Air Force Research Laboratory has developed a logistic fuel processor that removes the sulfur content of the fuel and in the process converts logistic fuel to light gases then steam reform the light gases into hydrogen rich stream. This report documents the efforts in developing a fuel processor capable of providing hydrogen to a 3kW fuel cell stack. The technical challenges in the ... |
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| Synthesis, Characterization, and Structural Investigations of 1-amino-3- Substituted-1,2,3-Triazolium Salts, and a New Route to 1-substituted-1,2,3- triazoles |
JAN 2004 |
31 pages |
| Authors:
Gregory Kaplan; Greg Drake; Kerri Tollison; Leslie Hall; Tommy Hawkins; AIR FORCE RESEARCH LAB EDWARDS AFB CA PROPULSION DIRECTORATE
|
| Quarternary salts based upon 3-alkyl substituted 1-amino-1,2,3- triazolium cations (alkyl = methyl, ethyl, n-propyl, 2-propenyl, and n-butyl) have been synthesized and characterized by vibrational spectra, multinuclear NMR, elemental analysis, and DSC studies. Subsequent diazotization of these salts results in the exclusive formation of 1-alkyl-1,2,3-triazoles. Single crystal x-ray studies were carried out for 1-amino-3- methyl-1,2,3-triazolium iodide, 1-amino-3-ethyl-1,2,3-triazolium bromide, 1-amino-3-npropyl- 1,2,3- triazolium bromide, and 1-amino-3-n-butyl-1,2,3-triazolium bromide as well as the starting heterocycle, ... |
|
| Review of Knowledge on the Occurrence, Chemical Composition, and Potential Use for Desalination of Saline Ground Water in Arizona, New Mexico, and Texas with a Discussion of Potential Future Study Needs |
2004 |
14 pages |
| Authors:
G. F. Huff; GEOLOGICAL SURVEY RESTON VA
|
| Increasing demand on the limited supplies of freshwater in the desert Southwest, as well as other parts of the United States, has increased the level of interest in saline-water resources. Saline ground water has long been recognized as a potentially important contributor to water supply in the Southwest, as demonstrated by the number of hydrologic, geologic, and engineering studies on the distribution of saline water and the feasibility of desalination. ... |
|
| Crosslinkable Bicontinuous Cubic Assemblies via Mixtures of Gemini Amphiphiles and Butyl Rubber |
2004 |
17 pages |
| Authors:
Xiaoyun Lu; Brian J. Elliott; Douglas L. Gin; COLORADO UNIV AT BOULDER DEPT OF CHEMISTRY AND BIOCHEMISTRY
|
| Butyl Rubber has several excellent advantages as a barrier material fabric, but the lack of permeability of air and water vapor can lead to fatigue and heat stress in the wearer. This briefing presents a method for the creation of a lyotropic liquid crystals (LLC) and butyl rubber thin film for barrier materials based on the bicontinous cubic phase. |
|
| 10x Improvement of Power Transmission over Free Space Using Integrated Antennas on Silicon Substrates |
2004 |
5 pages |
| Authors:
Jau-Jr Lin; Xiaoling Guo; Ran Li; Jason Branch; Joe E. Brewer; Kenneth K. 0; FLORIDA UNIV GAINESVILLE DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
| This paper reports the techniques for improving the characteristics of integrated antennas fabricated on silicon substrates for communications over air. Using these, the pair gain (Ga) of antennas on 20-Omega-cm substrates has been improved by ~10x over the previously reported result. Lastly, the possibility of realizing single chip radios with integrated antennas for communication over air is suggested by picking up, amplifying, and frequency dividing a 15-GHz sine wave transmitted ... |
|
| Military Land-Based Water Purification and Distribution Program (Preprint) |
04 DEC 2003 |
15 pages |
| Authors:
James S. Dusenbury; TACOM RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
|
| Potable water is one of the Army's most basic logistics requirements, particularly in arid environments. It directly affects the health and welfare of the individual soldier as well as the combat readiness of committed forces. During World War I, health problems associated with poor drinking water quality prompted the U.S. Army to address the issue of providing potable drinking water to the field. The principal piece of equipment developed was ... |
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| Synthesis, Structure and Properties of BN Nanotubes, BN/SiC and CBN/SiC Micro/Nano-Whiskers |
01 DEC 2003 |
16 pages |
| Authors:
Volodymyr Pokropyvnyy; UKRAINIAN ACADEMY OF SCIENCES KIEV INST OF MATERIALS SCIENCE PROBLEMS
|
| This report results from a contract tasking Institute for Problems of Materials Science of Ukraine National Academy of Sciences as follows: The contractor will investigate: 1) chemical synthesis including carbothermal reduction chemical deposition and coating of nanoparticles 2) optimization of synthesis processes parameters: 3) structure examination by high-resolution electron microscopy atomic/force microscopy and X-ray analysis; 4) experimental measurements of mechanical properties |
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| Nanoporous Membrane Technologies for Pathogen Collection, Separation, and Detection |
19 NOV 2003 |
22 pages |
| Authors:
Sang W. Lee; Hao Shang; Gil U. Lee; Matthew T. Griffin; Jack Fulton; PURDUE UNIV LAFAYETTE IN SCHOOL OF CHEMICAL ENGINEERING
|
| Partial contents: Nanoporous Membranes, Membrane Chemistries, Characterization of Membrane Chemistries,Protein Fouling, Collector,Gas and Liquid Permeabilities, Membrane Permeabilities in the Presence of Water, Operation Characteristics, 3 Day Laboratory Trial, Collector Prototype, Performance of the Prototype,Separator - Solute Permeabilities, Protein Permeability, Collector & Separator Fluidics, Detection, Self-assembled Monolayers, Ovalbumin Binding, Nanoporous Membrane Separation Methodologies, and Acknowledgements. |
|
| Advanced Air Purification Technology Capabilities Assessment |
19 NOV 2003 |
32 pages |
| Authors:
Michael Parham; EDGEWOOD CHEMICAL BIOLOGICAL CENTER ABERDEEN PROVING GROUND MD RESEARCH AND TECHNOLOGY DIR
|
| Several programs under development, such as Comanche and Future Combat Systems have selected or are considering the use of advanced air purification technologies. In addition to these vehicle specific programs, the collective protective community will require an advanced air purification solution for shelters and fixed sites. To best handle the broad chemical and biological threat while reducing the logistical burden of current Joint Collective Protection Equipment a flexible hybrid approach ... |
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| SiC Thin Films on Insulating Substrates for Robust Microelectromechanical System (MEMS) Applications |
NOV 2003 |
170 pages |
| Authors:
Lin Cheng; Andrew J. Steckl; CINCINNATI UNIV OH DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
| An increasing demand for robust MEMS devices, such as micro-sensors, that can operate at temperatures well above 300 deg C and often in severe environments has stimulated the search for alternatives to Si. [1] The research in direct formation of SiC thin-films on insulating substrates (SiCOI) has found a very promising technology for producing SiC device structures and providing an excellent alternative material solution for high temperature applications. MEMS applications ... |
|
| Fabrication, Characterization, and Analysis of a DRIE CMOS-MEMS Gyroscope |
OCT 2003 |
11 pages |
| Authors:
Huikai Xie; Gary K. Fedder; FLORIDA UNIV GAINESVILLE DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
| A gyroscope with a measured noise floor of 0.02 degrees /s/Hz1/2 at 5 Hz is fabricated by post-CMOS micromachining that uses interconnect metal layers to mask the structural etch steps. The 1x1 mm lateral-axis angular rate sensor employs in-plane vibration and out-of-plane Coriolis acceleration detection with on-chip CMOS circuitry. The resultant device incorporates a combination of 1.8- micrometers-thick thin-film structures for springs with out-of-plane compliance and 60- micrometers-thick bulk silicon ... |
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| Microsystems Research in Japan |
SEP 2003 |
195 pages |
| Authors:
Roger T. Howe; Mark G. Allen; Andrew A. Berlin; Elliot E. Hui; David J. Monk; Khalil Najafi; Mineo Yamakawa; LOYOLA COLL BALTIMORE MD INTERNATIONAL TECHNOLOGY RESEARCH INST
|
| This report reviews Japan's research and development activities and strategies in the field of microsystems and microelectromechanical systems (MEMS). Topics covered include the future outlook of national initiatives, interactions between industry and universities, technology and manufacturing infrastructure, and emerging applications research. The panel's findings include the following: non-silicon microsystem technologies, together with parallel assembly technologies for low-cost mass manufacturing, merit increased attention. Incorporating non-silicon technologies into the MEMS Exchange should ... |
|
| IR Absorption Tomography for Active Combustion Control |
31 JUL 2003 |
17 pages |
| Authors:
F. C. Gouldin; CORNELL UNIV ITHACA NY COLL OF ENGINEERING
|
| The goals of our research were to further the development of IR absorption tomography as a sensor for closed-loop control of combustion and propulsion systems of interest to the Navy, to apply IR absorption tomography to study mixing in forced-jet actuators, and to use POD analysis to investigate large scale structures in reacting jet flows and the potential for reduced order models of jet actuators. In the last year of ... |
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| Synthesis of 1,2,3,4-Tetrazines, 1,2,3,4-Tetrazine Di-N-oxides, Pentazole Derivatives, Pentazine Poly-N-oxides, and Nitroacetylenes |
20 JUL 2003 |
60 pages |
| Authors:
Harold Shechter; M. Venugopal; D. Srinivasulu; OHIO STATE UNIV COLUMBUS DEPT OF CHEMISTRY
|
| In this talk I summarized our DARPA/AFOSR and published Russian efforts to prepare DTTO, IsoDTTO and other energetics. In the present set of overheads I have added further routes (overheads 35, 43, 46 and 50-59) to be investigated for synthesis of various 1 2,3,4-tetrazine, 1 ,3-di-N-oxides, DTTO, and IsoDTTO. Synthesis of triazolotetrazine dioxides (overhead 35) is now being emphasized. There are notes and explanations on almost all of the overheads ... |
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| Microwave Catalytic Oxidation of Hydrocarbons in Aqueous Solutions |
JUL 2003 |
|
| Authors:
Chang Y. Cha; Paul Vergnani; CHA CORP LARAMIE WY
|
| The Phase I work objective was to demonstrate the feasibility of using a microwave oxidation catalyst to destroy hydrocarbons and chemical warfare agents in water contaminated by washing of combat vehicles. A sufficient amount of experimental work has been completed evaluating the performance of the microwave catalytic oxidation process and determining the effect of different operating parameters in terms of contaminant destruction efficiency. Microwave power and solution flow rate are ... |
|
| Parallel, Ultrafast Sub-100 Nanometer Dip-Pen Nanolithography |
16 JUN 2003 |
30 pages |
| Authors:
Chad A. Mirkin; Chang Liu; NORTHWESTERN UNIV EVANSTON IL DEPT OF CHEMISTRY
|
| We have developed new designs and fabrication techniques for arrayed (one dimensional and two dimensional) DPN probes in two categories, passive probes and active probes. We have successfully developed mechanical and electrical interfaces to commercial AFM machines and software. Arrayed DPN writing has been achieved. As a highlight, a set of ten different characters has been written using ten different pens in one single run. We also have significantly advanced ... |
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| NRL 2003 Review |
JUN 2003 |
|
| Authors:
NAVAL OBSERVATORY WASHINGTON DC
|
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| "Telechelic" Ferroelectric Fluoro Terpolymers With High Chemical Reactivity and Large Electromechanical Response at Ambient Temperature |
JUN 2003 |
14 pages |
| Authors:
T. C. Chung; A. Petchsuk; PENNSYLVANIA STATE UNIV UNIVERSITY PARK DEPT OF MATERIALS SCIENCE AND ENGINEERING
|
| This paper discusses a new family of telechelic ferroelectric polymorphs fluoroterpolymers having OH and COOH terminal groups. The polymer backbone comprises of vinylidene difluoride (VDF), trifluoroethylene (TrFE), and a small amount of chlorinecontaining third monomers. The slightly bulky chlorine atoms serve as the kinks, which alters the chain conformation from all-trans (Beta-phase) to tttg+tttg- (gamma -phase), without reducing crystallinity. Consequently, the terpolymers exhibit low Curie temperature, high dielectric constant (>80) ... |
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| SiGe(C) Epitaxial Technologies - Issues and Prospectives |
21 MAY 2003 |
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| Authors:
T. J. Grasby; T. E. Whall; E. H. Parker; WARWICK UNIV COVENTRY (UNITED KINGDOM)DEPT OF PHYSICS
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| Epitaxial layers of Silicon Germanium Carbides, SiGe(C), have entered mainstream Silicon processing, forming base regions in heterojunction bipolar transistors. There also are exciting prospects for SiGe(C) having an impact on MOS technologies. In both cases heteroepitaxial layers enable very significant performance enhancements at the device and circuit level. A related area and a familiar hot issue is silicon epitaxy for device active regions in MOS technologies where tightly controlled doping ... |
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| Experiments on Synchronization and Control of Chaotic Oscillators |
MAY 2003 |
9 pages |
| Authors:
John L. Hudson; VIRGINIA UNIV CHARLOTTESVILLE OFFICE OF SPONSORED PROGRAMS
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| The authors carried out experiments and supporting simulations on the dynamics of nonlinear complex systems with coupling, feedback, external forcing, and noise. The experiments were carried out with arrays of electrodes where: (1) the sites have measurable rates of reaction and can be addressed individually, (2) each site has rich dynamics depending on reactor parameters, and (3) the strength and length scales of coupling among the elements are controllable. The ... |
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| Synthesis of Nanostructured Magnetic Mixed-Oxide Ferrite Powders by Using a Novel Chemical Method |
03 APR 2003 |
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| Authors:
N. N. Ghosh; BIRLA INST OF TECHNOLOGY AND SCIENCE PILANI (INDIA) CHEMISTRY GROUP
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| In the present investigation, an attempt has been made to establish a new chemical route for synthesis of the nanostructured mixed oxide ferrite powders. By using this chemical method a variety of ferrite powders having spinel structure and doped with Co, Ni, Mn, Zn etc has been prepared. In this method nitrate salts of the different metals were used as starting materials. The aqueous solutions of the metal nitrates were ... |
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| A Force-Detection NMR Sensor in CMOS-MEMS |
Jan-2003 |
63 pages |
| Authors:
Kevin M Frederick; CARNEGIE-MELLON UNIV PITTSBURGH PA DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
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| Nuclear Magnetic Resonance (NMR) on micro-liter samples using the Force Detection NMR (FDNMR) method will enable mobile and embedded detection of many elements without a multi-tesla superconducting magnet. This report presents a FDNMR sensor which has the ability to detect hydrogen of a 0.52 microliters water sample in a 1 tesla magnetic field. The sensor is a micromachined cantilevered paddle within a CMOS chip measuring 2.5 mm x 2.5 mm ... |
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| Roadmap for Biomass Technologies in the United States |
DEC 2002 |
48 pages |
| Authors:
DEPARTMENT OF ENERGY WASHINGTON DC
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| The purpose of this document is to outline a research and development roadmap and identify public policy measures for promoting and developing environmentally desirable biobased fuels power and products. It represents the collective assessment and expertise of the Biomass Research and Development Technical Advisory Committee. The research strategies outlined in this road map will help achieve the goals established by the Committee in the Vision for Bioenergy and Biobased Products ... |
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| Micro-Fluidic Chemical Reactor Systems: Development, Scale-Up and Demonstration |
NOV 2002 |
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| Authors:
Klavs F. Jensen; MASSACHUSETTS INST OF TECH CAMBRIDGE
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| This report summarized advances in microfluidic chemical reactor systems obtained using microfabrication techniques. Using these techniques, reduction in size and integration of multiple functions for chemical reactor systems were realized. Issues in combining microfluidic components, sensors and control elements into a micro chemical system were also explored. |
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Industrial Chemistry and Chemical Processing
