| Dial-A-Decon Solution Chemistry GAP Testing |
Apr 2012 |
52 pages |
| Authors:
Lawrence Procell; Matthew Shue; Jerry Pfarr; Todd Sickler; Robert Nickol; ARMY EDGEWOOD CHEMICAL BIOLOGICAL CENTER APG MD RESEARCH AND TECHNOLOGY DIR
|
 | The Dial-A-Decon solution chemistry gap testing, documented in this report, was performed to fill some of the higher priority data gaps identified by the Solution Chemistries for Point-of-Use Decontamination Formulation report published by Noblis, Inc. (Falls Church, VA) in April 2009 for the Defense Threat Reduction Agency. The Noblis report included an assessment of the science that could be used in point-of-use formulation of decontaminants effective against the chemical warfare ... |
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| Heat-Treated Metal Phthalocyanine Complex as an Oxygen Reduction Catalyst for Non-Aqueous Electrolyte Li/air Batteries |
2011 |
6 pages |
| Authors:
Sheng S. Zhang; Xiaoming Ren; Jeffrey Read; ARMY RESEARCH LAB ADELPHI MD
|
| In this work we study heat-treated FeCu-phthalocyanine (FeCuPc) complexes as the catalyst for oxygen reduction in non-aqueous electrolyte Li/air cells by supporting the catalyst on a high surface area Ketjenblack EC-600JD carbon black. It is shown that the resultant FeCu/C catalyst not only accelerates the two-electron reduction of oxygen as "O2 + 2Li+ +2e Li2O2" but also catalyzes the chemical disproportionation of Li2O2 as "2Li2O2 2Li2O+O2" In Li/air cells, the ... |
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| Multifunctional Properties of Structural Gel Electrolytes |
01-Sep-2008 |
18 pages |
| Authors:
P-A T Nguyen; J F Snyder; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE
|
| Multifunctional structural gel electrolytes were prepared by the integration of conductive pathways using non-aqueous solvents into structural resin networks. Poly(ethylene) glycol (200 MW) and propylene carbonate were used as non-aqueous solvents while vinyl ester and epoxy resin were used as structural resins. The monomer and solvents were incorporated together and polymerized to create conductive pathways is crosslinked networks. THe impact of chemistry and weight fraction of both liquid and resin ... |
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| New Synthesis for Lanthanum Hexaboride Nanocrystals |
26 Mar 2008 |
4 pages |
| Authors:
Lisa Pfefferie; YALE UNIV NEW HAVEN CT DEPT OF CHEMICAL ENGINEERING
|
| Although lanthanum hexaboride has been used for many years as a cathode material, new applications exploiting its unusual electron emission properties are now being investigated. Nanocrystalline LaB6 materials have been predicted to provide important advantages for IR absorbers as well as for nanoelectronics in general because of their low work function. Lanthanum hexaboride is usually made by mixing La and B with Al in a furnace at 1500K. The molten ... |
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| Comparison of the Composition of the Tempel 1 Ejecta to the Dust in Comet C/Hale-Bopp 1995 O1 and YSO HD 100546 |
2007 |
19 pages |
| Authors:
C. M. Lisse; K. E. Kraemer; III Nuth J. A.; A. Li; D. Joswiak; AIR FORCE RESEARCH LAB HANSCOM AFB MA SPACE VEHICLES DIRECTORATE
|
| Spitzer Infrared Spectrograph observations of the Deep Impact experiment in July 2005 have created a new paradigm for understanding the infrared spectroscopy of primitive solar nebular material -- the ejecta spectrum is the most detailed ever observed in cometary material. Here, we take the composition model for the material excavated from Comet 9P/Tempel 1's interior and successfully apply it to Infrared Space Observatory spectra of material emitted from Comet C/1995 ... |
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| Methane Hydrate Exploration, Atwater Valley, Texas-Louisiana Shelf: Geophysical and Geochemical Profiles |
27 DEC 2006 |
38 pages |
| Authors:
Richard B. Coffin; Joan Gardner; John Pohlman; Ross Downer; Warren Wood; NAVAL RESEARCH LAB WASHINGTON DC
|
| From May 14-20, 2004, piston core and heat flow measurements were collected across two mound structures, mound D and mound F, in an area designated as Atwater Valley, a shallow trough on the continental slope south of the Mississippi Delta. Atwater Valley lies at 1,200 to 1,500 m water depth. Several small mound structures occur in the valley, rising less than 50 m above the surrounding seafloor. The UNOLS vessel ... |
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| Observation of Dihalide Elimination Upon Electron Attachment to Oxalyl Chloride and Oxalyl Bromide, 300-550 K |
10 MAY 2006 |
9 pages |
| Authors:
Jane M. Van Doren; Kathleen B. Hogan; Thomas M. Miller; A. A. Viggiano; AIR FORCE RESEARCH LAB HANSCOM AFB MA SPACE VEHICLES DIRECTORATE
|
| Rate coefficients have been measured for electron attachment to oxalyl chloride and oxalyl bromide in He gas at 133 Pa pressure over the temperature range of 300-550 K. With oxalyl chloride, the major ion product of attachment is Cl2 at all temperatures; its importance increases slightly as temperature increases. Two other product ions formed at Cl and the phosgene anion CCl2O and appear to arise from a common mechanism. With ... |
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| The Chameleon Concept: Modeling Quaternary Geomorphic Surfaces Using Laboratory, Field, and Imaging Spectrometry in the Lower Colorado Sonoran Desert |
NOV 2005 |
220 pages |
| Authors:
J. D. Lashlee; ARMY TOPOGRAPHIC ENGINEERING CENTER ALEXANDRIA VA
|
| Chameleon is a physics-based landscape modeling software system designed for modeling and simulations. Hyperspectral laboratory, field, and imaging spectrometer measurements are collected as empirical foundation data. Linear spectral unmixing decomposes each image pixel into spectral endmembers. Spectral editing tools allow mathematical manipulation of these fractional abundances and introduction of new spectral information. Image spectra are modified on a sub-pixel, per-pixel, or neighborhood basis, or the entire hypercube can be customized ... |
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| Colored Dissolved Organic Matter in Sediments and Seagrass Beds and Its Impact on Benthic Optical Properties of Shallow Water Marine Environments - Data Analysis and Synthesis, and Student Support |
08 SEP 2004 |
16 pages |
| Authors:
David J. Burdige; OLD DOMINION UNIV RESEARCH FOUNDATION NORFOLK VA
|
| The optical properties of shallow water coastal environments are a complex function of physical and biogeochemical processes occurring both in sediments and in the water column. Developing models of the optical properties of these environments requires further knowledge of the processes affecting light alteration and modification by biogeochemical reactions in the surficial sediments and at the sediment-water interface. The goal of our work has been to examine one aspect of ... |
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| A Compilation of Rate Parameters of Water-Mineral Interaction Kinetics for Application to Geochemical Modeling |
MAR 2004 |
71 pages |
| Authors:
James L. Palandri; Yousif K. Kharaka; GEOLOGICAL SURVEY MENLO PARK CA
|
| Geochemical reaction path modeling is useful for rapidly assessing the extent of water-aqueous-gas interactions both in natural systems and in industrial processes. Modeling of some systems, such as those at low temperature with relatively high hydrologic flow rates, or those perturbed by the subsurface injection of industrial waste such as CO2 or H2S, must account for the relatively slow kinetics of mineral-gas-water interactions. We have therefore compiled parameters conforming to ... |
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| Field Demonstration of In Situ Perchlorate Bioremediation at Building 1419 |
22 JAN 2004 |
80 pages |
| Authors:
Randall J. Cramer; Carey Yates; Paul Hatzinger; Jay D. Shaw; NAVAL SURFACE WARFARE CENTER INDIAN HEAD DIV MD
|
| The Applied Technology Department at the Indian Head Division, Naval Surface Warfare Center and Shaw Environmental, Inc., have just successfully completed a field demonstration of in situ bioremediation of a groundwater aquifer contaminated with perchlorate. Using a recirculation cell design, naturally occurring microorganisms were stimulated to degrade perchlorate by injecting a food source (lactate) and neutralizing the groundwater acidity with a carbonate buffer. Starting with perchlorate concentrations in excess of ... |
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| Catalytic Oxidation of CW Agents Using H2O2 in Ionic Liquids |
19 NOV 2003 |
19 pages |
| Authors:
William M. Nelson; ILLINOIS WASTE MANAGEMENT AND RESOURCE CENTER (WRMC) CHAMPAIGN ILLINOIS
|
| Partial contents: Structures of ionic, Common Cationic Surfactants, Micelles to Micelles to Microemulsions, Microemulsion Formulations,Structures of HD, Structures of HD, VX, VX, GB, and GD, Decontamination of Decontamination of Mustard and Mustard and Phosphorous (V) Phosphorous (V) Esters, Hydrogen Peroxide Hydrogen carbonate with added carbonate, Hydrogen peroxide, bicarbonate, and Hydrogen peroxide, bicarbonate, and organic organic cosolvents cosolvents afford rapid, afford rapid, decontamination of CWA, Solubility in a Microemulsion vs glycol/water, ... |
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| Determining Sorption Rate by a Continuous Gravimetric Method |
19 NOV 2003 |
9 pages |
| Authors:
Monicia R. Hall; Lawrence R. Procell; Philip W. Bartram; Wendel J. Shuely; EDGEWOOD CHEMICAL BIOLOGICAL CENTER ABERDEEN PROVING GROUND MD RESEARCH AND TECHNOLOGY DIR
|
| A rate-determining step in the decontamination of chemical agent resistant coating (CARC) is thought to be the rate of solvent sorption into the pores of the paint. Because of systematic errors inherent in the conventional "blotting" method, a continuous gravimetric method was developed to determine the initial sorption rates of various solvents into MIL-C-53039A CARC and total amounts of solvent sorbed (t=30 min). Using an HP Vector VL computer interfaced ... |
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| Chemical-Material Compatibility Study With Initial Decon Green Formulation |
01-Jul-2003 |
10 pages |
| Authors:
Philip W Bartram; Monicia R Gibson; Vikki D Henderson; EDGEWOOD CHEMICAL BIOLOGICAL CENTER ABERDEEN PROVING GROUND MD
|
| The army is currently developing Decon Green, a thorough decontaminant intended to be more effective, environmentally friendly, applicable to an extreme temperature range, and more material-compatible than the standard decontaminant DS2. The objective of this study was to compare the effects of Decon Green on thermoplastics and rubbers of military interest with the effects caused by DS2. These effects were observed by comparing physical properties of test specimens before and ... |
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| Decon Green, the Environmentally-Friendly Decontaminant |
01 JUL 2003 |
5 pages |
| Authors:
George W. Wagner; Lawrence R. Procell; Vikki D. Henderson; David C. Sorrick; Yu-Chu Yang; EDGEWOOD CHEMICAL BIOLOGICAL CENTER ABERDEEN PROVING GROUND MD
|
| A simple solution of hydrogen peroxide, potassium carbonate, potassium molybdate, propylene carbonate and Triton(tradmark) X-100 (a non-ionic surfactant) affords the rapid, broad-spectrum decontamination of chemical warfare agents, even at low temperatures (30 C). The solution is non-corrosive, environmentallyfriendly, and leaves no toxic residues. This novel decontaminant has been appropriately named Decon Green. In situ generation of peroxy anion OOH effects perhydrolysis of nerve agents such as VX and GD to ... |
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| Transport and Storage of Metals in Fractured and Karstic Rock Aquifers |
31 MAR 2003 |
123 pages |
| Authors:
William B. White; PENNSYLVANIA STATE UNIV UNIVERSITY PARK DEPT OF GEOSCIENCES
|
| The objective of this project was to evaluate the movement of metals in karst aquifers, including metal accumulation, release, and transport under low flow and storm conditions. Metals investigated include aluminum, arsenic, chromium, lead, and nickel. Measurements were made of variations in metal concentration from base flow to storm flow using three springs before, during, and after storm events to study metal transport and release. Sediment samples from 10 springs ... |
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| Application of Elemental Fingerprinting to Evaluate the Dynamics of Larval Exchange |
10 MAR 2003 |
13 pages |
| Authors:
Lisa A. Levin; John Largier; SCRIPPS INST OF OCEANOGRAPHY LA JOLLA CA INTEGRATIVE OCEANOGRAPHY DIV
|
| Most marine invertebrates have planktonic larval stages that act as agents for increased dispersal and gene flow between adult populations, but little is known about the spatial scale and strength of connectivity that results from larval dispersal. This study seeks to develop trace elemental fingerprinting methods to assess patterns of exchange among mytilid mussel populations in southern California. The authors also developed a model to predict passive larval exchange by ... |
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| Decon Green |
JAN 2002 |
7 pages |
| Authors:
George W. Wagner; Philip W. Bartram; Lawrence R. Procell; Vikki D. Henderson; Yu-Chu Yang; EDGEWOOD CHEMICAL BIOLOGICAL CENTER ABERDEEN PROVING GROUND MD
|
| Simple solutions of hydrogen peroxide, carbonate/bicarbonate, and co-solvents afford the rapid, broad-spectrum decontamination of chemical warfare agents. Such formulations, termed "DECON GREEN", are non-toxic, non-corrosive and environmentally friendly. Reactivity arises from in situ generated peroxy anion OOH- and peroxocarbonate HCO4-, which, respectively, afford the rapid perhydrolysis of VX and GD to their non-toxic phosphonic acids, and the oxidation of HD to its non-vesicant sulfoxide. DECON GREEN performs well at decontaminating ... |
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| Empirical Predictions of Seafloor Properties Based on Remotely Measured Sediment Impedance |
2002 |
11 pages |
| Authors:
Michael D. Richardson; Kevin B. Briggs; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS MARINE GEOACOUSTICS DIV
|
| Numerous acoustic systems have been developed over the past 25 years for remote classification of the seabed. Many systems use inversions of echo returns to estimate seafloor impedance and then use empirical relationships to predict other seabed properties from values of impedance. New regressions are presented, separately for siliciclastic and carbonate sediments, which allow prediction of sediment grain size, porosity, bulk density, percent sand and gravel, and sound speed ratio ... |
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| The Paleoclimate of the Dead Sea Basin from the Last Glacial Maximum to the Holocene |
NOV 2001 |
95 pages |
| Authors:
Thomas K. Swoveland; AIR FORCE INST OF TECH WRIGHT-PATTERSONAFB OH
|
| The purpose of this study was to determine the late glacial paleoclimate of the Southern Levant. A study of delta 13C and delta 18O in carbonates (aragonite) was undertaken from a Lisan Core 3, a laminated core, collected from the Lisan Peninsula in the Dead Sea. Accelerator Mass Spectrometer (AMS) ages demonstrated that the core spanned the period from the Last Glacial Maximum (LGM) to the Holocene (20-12 thousand years ... |
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| Molecular Structure for Smart Materials |
19 MAY 2001 |
5 pages |
| Authors:
ARIZONA STATE UNIV TEMPE DEPT OF PHYSICS
|
| This project has developed new electron diffraction methods for determining the structure of organic sensors and detectors, including a colorimetric diacetylene phospholipid which changes color when exposed to toxins, and a new hard covalent carbonate. We are concerned with radiation- sensitive molecules which cannot be crystallized for analysis by X-ray crystallography, and with new nanostructured organics which do not form large enough single crystals for X-ray analysis. Since the main ... |
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| Advances in the Low Temperature Preparation and Structural Characterization of Lanthanum Strontium Manganite Powder |
APR 2001 |
6 pages |
| Authors:
Sophie Guillemet-Fritsch; Herve Coradin; Antoine Barnabe; Christophe Calmet; Philippe Tailhades; TOULOUSE-3 UNIV (FRANCE)
|
| Perovskite oxides of formula La(1-x)Sr(x)MnO3 have been obtained by the thermal decomposition of precursor powders. Two different kinds of precursors, carbonates and citrates have been prepared by low temperature, i.e., 'chimie douce' technique. The careful control of the chemical and the hydrodynamic parameters during the synthesis process allows obtaining nice homogeneous and small size particles (80 nm for the ex-carbonates and 30 nm for ex-citrates). Pure perovskite phase is observed ... |
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| Potentiometric Surface, Carbonate-Rock Province, Southern Nevada and Southeastern California, 1998-2000 |
2001 |
20 pages |
| Authors:
DEPARTMENT OF THE INTERIOR WASHINGTON DC
|
| The carbonate-rock aquifer that underlies most of southern Nevada occupies part of what is known as the carbonate-rock province, a physiographic region that encompasses the eastern two-thirds of the Great Basin. The potential for development of water resources in this aquifer has prompted Federal, State, and local authorities to seek additional information about the quality and quantity of ground water in the carbonate-rock province. Investigations of the region's hydrogeology have ... |
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| Distillate Fuel Processing for Marine Fuel Cell Applications |
17 JAN 2000 |
8 pages |
| Authors:
G. Steinfield; R. Sanderson; H. Ghezel-Ayagh; S. Abens; Mark C. Cervi; FUELCELL ENERGY INC DANBURY CT
|
| FuelCell Energy, Inc. (FCE) is developing a 625 kW fuel cell power plant for marine applications based on its Direct Carbonate Fuel Cell (DFC(Trademark)) technology. The power plant is designed for operation on Mil-F-16884J Naval distillate fuel designated as NATO F-76. This fuel is characterized as a 385 deg C (max) end boiling point diesel fuel with up to 1% sulfur by weight. The development is part of the U.S. ... |
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| Comparative Life Cycle Costs of Fuel Cells and Other Propulsion Systems |
JAN 2000 |
74 pages |
| Authors:
Z. Karni; R. Willigan; C. Artze; M. Badal; W. Gordon; MCMULLEN (JOHN J) ASSOCIATES INC ALEXANDRIA VA
|
| This is a report on the development of a Life Cycle Cost (LCC) model that compares costs for traditional propulsion systems to costs of marine propulsion systems that incorporate fuel cells. The Coast Guard is interested in applying fuel cell technology for shipboard applications where high efficiency and reduced pollution are critical. Similar cost comparisons are also made for ship service generators. The program sums acquisition costs of the machinery ... |
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| Use of Permeable Formwork in Placing and Curing Concrete |
OCT 1999 |
52 pages |
| Authors:
Philip G. Malone; ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS ENGINEER RESEARCH AND DEVELOPMENT CENTER
|
| Permeable framework is a special class of lined formwork used to produce improvements in the strength and durability of concrete. The bracing and the liner in the formwork are engineered to resist the pressure of plastic (or fresh) concrete, but to allow trapped air and excess water to pass through and be removed during concrete placement and consolidation. The objective in using permeable formwork is to ... |
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| Dynamics in Propylene Carbonate and Propylene Carbonate Containing LiPF6 |
01 JUL 1999 |
37 pages |
| Authors:
J. J. Fontanella; M. C. Wintersgill; J. J. Immel; NAVAL ACADEMY ANNAPOLIS MD DEPT OF PHYSICS
|
| Electrical Conductivity and differential scanning calorimetry studies (DSC) have been carried out on 1 M LiPF6 in propylene carbonate (PC) from 187 to 296 K. The electrical conductivity data are analyzed in terms of Vogel-Tammann- Fulcher (VTF), Williams-Landel-Ferry (WLF) and Bendler-Shlesinger (BENSH) formalisms. In addition, literature data for viscosity and relaxation times for PC (not containing salt) are analyzed using the same formalisms. Large, systematic variations are found in both ... |
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| Ultra-light Structural Steel from Metal Foams |
28 MAY 1999 |
23 pages |
| Authors:
Joseph C. Runkle; ULTRACLAD CORP ANDOVER MA
|
| It was the objective of this activity to make metal steel foam panelswith low carbon steel face sheets by hot isostatic pressing. Panels were successfully made with strontium carbonate foaming agent by both HIP plus foam and HIP plus forge plus foam. Resulting foam density was 50%, representing the best steel foam to date using Fraunhofer USA Delaware technology. It is planned to apply foam steel structural panels in applications ... |
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| Stability of Aluminum in Low-Temperature Lithium-Ion Battery Electrolytes |
MAR 1999 |
17 pages |
| Authors:
Wishvender K. Behl; Edward J. Plichta; ARMY RESEARCH LAB ADELPHI MD
|
| We investigated the stability of aluminum at the high positive potentials encountered during the charging of lithium-ion cells. The electrolyte in these cells consists of solutions of lithium hexafluorophosphate and lithium methide in binary- and ternary-solvent mixtures of ethylene carbonate, dimethyl carbonate, and ethyl methyl carbonate. We performed the investigations with the controlled potential coulometry technique. We found that a protective surface film was formed on aluminum electrodes in these ... |
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| Gas Evolution and Self-Discharge in Li/MnO2 Primary Batteries |
DEC 1998 |
27 pages |
| Authors:
Jeffrey Wolfenstine; Donald Foster; Wishvender Behl; Sol Gilman; ARMY RESEARCH LAB ADELPHI MD SENSORS AND ELECTRON DEVICES DIRECTORATE
|
| A survey is presented of the available literature on the problem of gas evolution in the Li/MnO2 primary battery system during storage. This gassing is due to the breakdown of the solvents, primarily propylene carbonate (PC) and dimethoxyethane (DME). Of these, the major contributor to gassing during storage is PC, which undergoes a hydrolysis reaction to form CO2. This reaction is a function of the amount of absorbed and structural ... |
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| Isolation and Characterization of Spicule Matrix Protein |
31 AUG 1998 |
4 pages |
| Authors:
William J. Lennarz; STATE UNIV OF NEW YORK AT STONY BROOK
|
| Ongoing work in our laboratory has shown that suBMP, a bone morphogenetic protein-i family member, is the homolog of the Drosophila embryonic patterning gene Tolloid. Resequencing the 3' end of the suBMP-1 cDNAs has revealed an extended open reading frame with high homology to human and murine tolloid homologs. Recent studies in the laboratories of Darwin Prockop, Daniel Greenspan, and Effrat Kessler have demonstrated that ... |
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| Oreshoot Zoning in the Carlin-Type Betze Orebody, Goldstrike Mine, Eureka County, Nevada |
1998 |
60 pages |
| Authors:
Stephen G. Peters; Gregory C. Ferdock; Maria B. Woltsekhowskaya; Robert Leonardson; Jerry Rahn; DEPARTMENT OF THE INTERIOR WASHINGTON DC
|
| Field and laboratory investigations of the giant Betze gold orebody, the largest Carlin-type deposit known, in the north-central Carlin trend, Nevada document that the orebody is composed of individual high-grade oreshoots that contain different geologic, mineralogic, and textural characteristics. The orebody is typical of many structurally controlled Carlin-type deposits, and is hosted in thin-bedded, impure carbonate or limy siltstone, breccia bodies, and intrusive or calc-silicate rock. Most ores in the ... |
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| Method of Preparing Monoclinic BaO.Al2O3.2SiO2 |
09 DEC 1997 |
|
| Authors:
Inna G. Talmy; Deborah A. Haught; PATENT OFFICE WASHINGTON DC
|
 | Monoclinic celsian (BaO.Al2O3.2SiO2) is produced by heating a stoichiometric, powder mixture of BaCO3 (or BaC2O4), Al2O3, and SiO2 (preferably SiO2 gel) with monoclinic celsian seeds at from 1250 deg C to 1500 deg C. |
|
| Development of a SEAL Delivery Vehicle Battery |
NOV 1997 |
160 pages |
| Authors:
Joseph L. Gessler; Antonio Romero; Robert J. Staniewicz; NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD
|
| The goal of this program was to demonstrate performance in cells sized for use in the SEAL Delivery Vehicle. Development efforts by Saft, America, Inc. are reported for batteries to power undersea vehicles. Large, prismatic cells were designed, built, and tested in sizes up to 150 Ah, and demonstrated energy densities up to 130 Wh/Kg. The anodes were either metallic lithium or a lithium-intercalating carbon. ... |
|
| Analysis of Uranium Oxide Weathering by Molecular Spectroscopy |
NOV 97 |
85 pages |
| Authors:
Matthew S. Zickafoose; AIR FORCE TECHNICAL APPLICATIONS CENTERPATRICK AFB FL
|
| A preliminary study of the weathering of uranium oxide particles diluted in diamond dust at ambient environmental conditions is presented. The primary weathering reaction is oxidation of the uranium from the +4 to +6 oxidation state, although formation of compounds such as carbonates and hydroxides is possible. Identification of the state of uranium oxide has been attempted using luminescence spectroscopy and diffuse reflectance Fourier transform infrared spectroscopy (DRIFTS). Luminescence spectra ... |
|
| Lead Corrosion in Exhibition Ship Models |
NOV 97 |
29 pages |
| Authors:
Dana Wegner; NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD
|
| Lead has been a popular metal for fabricating fittings for exhibition ship models. It has been attractive because it is easy to obtain, soft and easy to fashion, and it melts at a relatively low temperature. However, lead fittings frequently corrode. Corrosion may be so severe as to completely consume the piece, leaving behind a white or gray residue popularly, and aptly, called "lead disease," "lead rot," "lead cancer," or ... |
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| Process for Treating By-Products of Lithium/Sulfur Hexafluoride |
13 MAY 1997 |
|
| Authors:
Luis E. Lema; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| A process is provided for treating the solid reaction by-products of lithium and sulfur hexafluoride. Lithium in the by-product solid waste is converted to lithium hydroxide. Lithium sulfide in the by-product is converted to lithium hydroxide. Lithium sulfide in the by-product is reacted with an acid to form a water soluble salt and hydrogen sulfide. The hydrogen sulfide is converted to an alkali metal sulfate. Solid aluminum oxide and lithium ... |
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| Substrate/Buffer Layer Compounds in the Calcium Antimonate System for Growth of Epitaxial YBCO Films |
MAY 97 |
11 pages |
| Authors:
Steven C. Tidrow; Arthur Tauber; Robert D. Finnegan; William D. Wilber; ARMY RESEARCH LAB FORT MONMOUTH NJ
|
| Using pulsed laser deposition (PLD), epitaxial thin films of Yttrium- Barium-Copper-Oxide (YBCO) have been grown on films of compounds in the calcium antimonate system, Ca2MeSbO6, where Me=Al, Ga, Sc, In, Y and La. Bulk targets of compounds were prepared from precursor oxides and carbonates using solid state reaction at temperatures between 1400 and 1500 deg C. Epitaxial relationships were determined from x-ray diffraction data. All antimonates investigated demonstrated (001) epitaxy ... |
|
| Feasibility Study Of Repowering the USCGC VINDICATOR (WMEC-3) With Modular Diesel Fueled Direct Fuel Cells |
MAY 1997 |
202 pages |
| Authors:
William H. Kumm; Homer L. Lisie Jr.; ARCTIC ENERGIES LTD SEVERNA PARK MD
|
| In 1988, AEL was awarded a Small Business Innovation Research (SBIR) Phase I contract on Navy Topic N88-94 by the NAVSEA R&D Officer, Code 03R. In 1990, this topic moved to Phase II with a contract involving the lab demonstration of the use of diesel type fuel in high temperature molten carbonate or Direct Fuel Cells (DFCs). The Phase II work was successfully completed in 1992. In 1995, Navy Code ... |
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| Energetic Nitro Prepolymer. |
26 AUG 1996 |
16 pages |
| Authors:
G. W. Lawrence; William H. Gilligan; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| Accordingly, an object of this invention is to provide new prepolymers and polymers. Another object of this invention is to provide new high energy prepolymers and polymers. A further object of this invention is to provide means of increasing the energy content of binders without sacrificing tensile strength and elongation. Yet another object of this invention is to provide a new method of synthesizing energetic prepolymers and polymers. These and ... |
|
| Coastal Benthic Boundary Layer Research Program: A Review of the Third Year |
19 JUL 96 |
242 pages |
| Authors:
Michael D. Richardson; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS GEOACOUSTICS/ GEOTECHNICAL SECTION
|
| The Coastal Benthic Boundary Layer (CBBL) Research Program is a 5- year Office of Naval Research study that addresses the physical characterization and modeling of benthic boundary layer processes and the impact of these processes on seafloor structure properties, and behavior. In this report, results from the third year of the CBBL are summarized. Included are preliminary results from 1995 experiments conducted in carbonate sediments of the Florida Keys (The ... |
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| Controlled Synthesis of Calcium Carbonate Polymorphs from a Nonaqueous Solvent |
04 JUN 96 |
|
| Authors:
Kenneth M. Doxsee; Robin L. Saulsbery; OREGON UNIV EUGENE DEPT OF CHEMISTRY
|
| In order to exploit the often dramatic effects of solvent on crystal form, well-known in the organic chemical realm, in the crystallization of inorganic materials, we have developed the technique of complexation mediated crystallization, wherein use of chelating agents allows the preparation of solid-state materials through simple salt metathesis reactions in nonaqueous solvents. As we report here, this technique, when applied to the crystallization of calcium carbonate through the reaction ... |
|
| Comparative Design Analysis of a Fuel Cell Powered Coast Guard Cutter |
JUN 96 |
205 pages |
| Authors:
John F. Comar; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| This investigation studied the impact of using fuel cells as the primary power source in a ship design. Three different fuel cells were modeled: Phosphoric Acid, Proton Exchange Membrane, and Molten Carbonate. These models were compared against a baseline design containing a more conventional powerplant. The models were built and optimized using the 'Advanced Surface Ship Evaluation Tool' (ASSET/MONOSC). Specifically, payload, endurance, sustained speed, and hull depth were held constant, ... |
|
| Physical and Geoacoustic Properties of Sediments Collected for the Key West Campaign, February 1995: A Data Report |
10 MAY 96 |
393 pages |
| Authors:
Kevin B. Briggs; Dawn L. Lavoie; Kevin P. Stephens; Michael D. Richardson; Yoko Furukawa; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS GEOACOUSTICS/ GEOTECHNICAL SECTION
|
| Physical and geoacoustic property data were collected during the Key West Campaign as a part of the Coastal Benthic Boundary Layer research program. The carbonate sediments of the western Florida Keys represent an important site in which to study the effects of environmental processes on sediment properties. In this report, results on these sediments from five Naval Research Laboratory scientists are presented. The data were collected from carbonate sands and ... |
|
| Rechargeable Lithium Battery with Solid Electrolyte |
MAY 96 |
89 pages |
| Authors:
D. Peramunage; D. M. Pasquariello; K. M. Abraham; EIC LABS INC NORWOOD MA
|
| The work carried out under this contract had its primary goal, the development of a polymer electrolyte-based rechargeable battery with the rate capability and cycle life required by batteries for the Army's communication devices. In particular, the battery is to perform over the temperature range of 239 to 343 K. The cell being developed has the configuration: Li/solid polymer electrolyte (SPE)/LiMn2O4. Polyacrylonitrile (PAN) based electrolytes with improved low temperature conductivity ... |
|
| High Critical Temperature Superconductor Substrate and Buffer Layer Compounds, A2MeSbO6 (Where A=Ba and Sr; and Me=Sc, In and Ga) |
MAY 96 |
13 pages |
| Authors:
Arthur Tauber; Steven C. Tidrow; Robert D. Finnegan; William D. Wilber; ARMY RESEARCH LAB FORT MONMOUTH NJ
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| Compounds in the series A2MeSbO6, where A=Ba, Sr, and Me=Sc, In, and Ga, have been used as substrate buffer layers with YBa2Cu3O7-x thin films. These materials were prepared by solid-state reaction of the oxides and carbonates. The compounds are ordered perovskites except for Ba2InSbO6. All compounds are cubic except Sr2ScSbO6 and Sr2GaSbO6 which are pseudo-cubic, tetragonal. Dielectric constant and loss tangent are reported for each bulk compound. Herein is described ... |
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| Conductivities of Lithium Tris(trifluoromethanesulfonyl) Methide in Aqueous and Nonaqueous Solutions at 25 degree C |
FEB 96 |
18 pages |
| Authors:
Charles W. Walker Jr.; Mark Salomon; ARMY RESEARCH LAB FORT MONMOUTH NJ
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| In order to determine the solution properties of lithium tris(trifluoromethanesulfonyl) methide (LiMe) in water and the aprotic solvents acetonitrile (AN), propylene carbonate (PC), N,N-dimethylformamide (DMF), and nitromethane (MeNO2), conductance measurements have been carried out at 25 deg C. Molar conductivities at infinite dilution and ion pair association constants were obtained analyzing the experimental data with the Fuoss-Hsia conductance equation using the expansion of Fernandez-Prini and Justice with and without inclusion ... |
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| High Pressure NMR and Electrical Conductivity Studies of Gel Electrolytes Based on Poly(acrylonitrile) |
26 JAN 96 |
21 pages |
| Authors:
Charles A. Edmondson; Mary C. Wintersgill; John J. Fontanella; Furio Gerace; Bruno Scrosati; CITY UNIV OF NEW YORK DEPT OF PHYSICS
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| The effect of high pressure on electrical conductivity and NMR in gels prepared from lithium or sodium perchlorate, ethylene carbonate, dimethyl carbonate and poly(acrylonitrile) (PAN) has been determined. The corresponding liquids were also studied. Complex impedance studies at frequencies from 10 to 10 (exp -8) Hz and NMR measurements of T1 were carried out as a function of pressure up to 0.25 GPa. Activation volumes for NMR relaxation and ionic ... |
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| Impedance and Lithium-7 NMR Studies of Polymer Electrolytes Based on Poly(Vinylidene Fluoride) |
26 JAN 96 |
18 pages |
| Authors:
F. Croce; G. B. Appetecchi; S. Slane; M. Salomon; M. Tavarez; HUNTER COLL NEW YORK DEPT OF PHYSICS AND ASTRONOMY
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| Composite polymer electrolytes consisting of at least 35 mol% poly(vinylidene fluoride) (PVdF) and mixtures of propylene carbonate (PC)and dimethyl formate (DMF), lithium salts (LiAsF6, LiN(CF3SO2)2, or LiC(CF3SO2)3 and small amounts (approx. 5 mol%) of plasticizer, either diethylphthalate (DEP) or dibutylphthalate (DBP), were investigated by differential scanning calorimetry, complex impedance analysis and (7)Li NMR spectroscopy. Despite the composite nature of these materials, they all exhibit a single glass transition temperature (Tg). ... |
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| Mineralogical Study of the Seafloor Diagenesis of Carbonate Sediments Near Dry Tortugas, Gulf of Mexico, Using Rietveld Method of Crystal Structure Refinement |
31 DEC 95 |
15 pages |
| Authors:
Yoko Furukawa; UNIVERSITY OF SOUTHERN MISSISSIPPI STENNIS SPACE CENTER CENTER FOR MARINE SCI ENCE
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| The carbonate sediments from Fort Jefferson National Monument area were studied for mineralogy using X-ray powder diffraction (XRD) in order to evaluate the effects of seafloor diagenesis on sediment structure. Cementation is suggested at the depths of 120 cm and below by the increase in high-Mg/low-Mg calcite ratio within fine-grained matrix. The relative amounts of calcium carbonate phases were determined by the Rietveld crystal structure refinement. Seafloor diagenesis may be ... |
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Reports by Keyword(s)
CARBONATES
