| GLEEM Testing Fixture |
Jul-2009 |
20 pages |
| Authors:
David Gray; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE
|
 | A test method was used to develop a process to emplace a refractory metal liner inside a gun tube as a part of an effort at the U.S. Army Research Laboratory to develop an autofrettage gun barrel application. The process consisted of filling the liner with an elastomeric material and then slipping this arrangement into the gun tube. The ends of the liner were plugged with plastic disks, and pressure ... |
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| Impact Protection Assessment of the Redesigned Oregon Aero ZetaLiner Fitting System in the HGU-56/P Aircrew Integrated Helmet System |
FEB 2008 |
33 pages |
| Authors:
Frederick Brozoski; Joseph Licina; Shean Phelps; Katie Padgett; Kimberly Vasquez; James Lindsey; Amy Harvey; ARMY AEROMEDICAL RESEARCH LAB FORT RUCKER AL
|
| The HGU-56/P Aircrew Integrated Helmet System (AIHS) uses the thermoplastic liner (TPL) to provide wearers with a custom helmet fit. While the TPL provides a comfortable helmet fit for most HGU-56/P AIHS wearers, there is a portion of the aviation warfighter population who cannot be comfortably accommodated by the TPL. Oregon Aero, Inc. markets an alternative helmet fitting system for the HGU-56/P AIRS (this fitting system is referred to as ... |
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| Machine Gun Liner Bond Strength |
AUG 2007 |
24 pages |
| Authors:
William S. De Rosset; Jonathan S. Montgomery; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE
|
| Bond strengths of two Stellite 21 liners in the M2 0.50-cal. machine gun have been measured. Both liners were obtained from machine-gun barrels that had been retired from service. Liner bond strength from one of the barrels was measured to be ~750 psi. The other liner fell out of the barrel during sectioning, and its bond strength was much lower. Simple calculations showed that a bond strength of 750 psi ... |
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| In-Place Pipe Lining of Pre-Action Fire Suppression System at Fort McPherson, GA |
MAR 2007 |
30 pages |
| Authors:
Orange S. Marshall; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING RESEARCH LAB
|
| A pre-action fire suppression system was installed in a portion of the U.S. Army Reserve Component Headquarters at Fort McPherson, GA, when the structure was constructed in 1995. This system, which is normally kept at a standard internal air pressure using air compressors in the basement electrical-mechanical room, is designed to remain dry, and have water in it only in the event of a fire. The Pre-action Fire Suppression System ... |
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| Mechanism of Ovarian Epithelial Tumor Predisposition in Individuals Carrying Germline BRCA1 Mutations |
DEC 2006 |
56 pages |
| Authors:
Louis Dubeau; UNIVERSITY OF SOUTHERN CALIFORNIA LOS ANGELES
|
| Women with germline mutations in BRCA1 are strongly predisposed to cancers of the ovary and fallopian tubes. Given the strong link between menstrual activity and risk of ovarian cancer in the general population, we hypothesized that BRCA1 might predispose to ovarian cancer indirectly, by influencing ovarian granulosa cells, which play an important role in controlling menstrual cycle progression. We used the Cre-lox system to inactivate the mouse Brca1 gene in ... |
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| Characterization of Long SiAION Ceramic Tubes for Gun Barrel Applications |
JUN 2006 |
118 pages |
| Authors:
Andrew K. Woodruff; John Hellmann; PENNSYLVANIA STATE UNIV UNIVERSITY PARK DEPT OF MATERIALS SCIENCE AND ENGINEERING
|
| The extent of density gradients, dimensional fidelity, and strength was examined on several different lots of Kennametal TK4 SiAlON proposed for use as gun-tube liners. The formal U.S. Army Research Laboratory designation for this material is ITK4. Five different tubes of material were received, ITK4-4 (200 mm in length) ITK4-6 (100 mm in length) ITK4-7 (100 in length) IFK4-8 (100 mm in length) and ITK4-14 (200 mm in length). Immersion ... |
|
| Infrared 3-4 um Spectroscopic Investigation of a Large Sample of Nearby Ultraluminous Infrared Galaxies |
27 SEP 2005 |
25 pages |
| Authors:
Masatoshi Imanishi; C. C. Dodley; Philip R. Maloney; NAVAL RESEARCH LAB WASHINGTON DC REMOTE SENSING DIV
|
| We present infrared L-band (3 4 m) nuclear spectra of a large sample of nearby ultraluminous infrared galaxies (ULIRGs). ULIRGs classified optically as non-Seyfert galaxies (LINERs, Hii regions, and unclassified) are our main targets. Using the 3.3 m polycyclic aromatic hydrocarbon (PAH) emission and absorption features at 3.1 m due to ice-covered dust and at 3.4 m produced by bare carbonaceous dust, we search for signatures of powerful AGNs deeply ... |
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| Helium High Pressure Tanks at EADS Space Transportation New Technology with Thermoplastic Liner |
13 JUL 2005 |
10 pages |
| Authors:
Fabien Benedic; Jean-Philippe Leard; Christian Lefloch; EADS ST ST MEDARD EN JALLES (FRANCE)
|
| Although EADS ST has been involved in high pressure tanks for 25 years. EADS ST is still developing new technologies and products to provide the best solution in response to the evolution of the market in terms of performances and costs. In order to achieve the new target prices, a new disruptive technology has been performing for several years in using a thermoplastic liner instead the usual expensive concept of ... |
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| Mechanical and Thermal Properties of Advanced Ceramics for Gun Barrel Applications |
FEB 2005 |
92 pages |
| Authors:
Jeffrey J. Swab; Andrew A. Wereszczak; Jason Tice; Russ Caspe; Reuben H. Kraft; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE
|
| Eight commercially available ceramic materials were procured and evaluated for potential application as gun barrel liners. These materials included an alumina, zirconia, and SiAlON, as well as three silicon carbides and two silicon nitrides. Preliminary evaluation determined the strengths, fracture toughness, Vickers hardness, thermal conductivity, specific heat, and linear coefficient of thermal expansion. An uncensored Weibull analysis was performed on all of the strength data. These databases were developed for ... |
|
| Mechanism of Ovarian Epithelial Tumor Predispostion in Individuals Carrying Germline BRCA1 Mutations |
JAN 2005 |
32 pages |
| Authors:
Louis Dubeau; CALIFORNIA UNIV LOS ANGELES
|
| Women with germline mutations in BRCA1 are strongly predisposed to cancers of the ovary and fallopian tubes. Given the strong link between menstrual activity and risk of ovarian cancer in the general population, we hypothesized that BRCA1 might predispose to ovarian cancer indirectly, by influencing ovarian granulosa cells, which play an important role in controlling menstrual cycle progression. We used the Cre-lox system to inactivate the mouse Brca1 gene in ... |
|
| Nanocomposite Barrier Fabric for Chemical and Biological Agent Resistant Tent |
DEC 2004 |
7 pages |
| Authors:
Arjan Giaya; Apoorva Shah; Bryan Koene; Erin McLaughlin; Kristian Donahue; Jean Hampel; TRITON SYSTEMS INC CHELMSFORD MA
|
| Different polymer nanocomposites were prepared during this study. The polymer matrix, the nanoclay type and loadings were systematically varied. Processing conditions (screw speed, configuration, and temperature profile) were varied as well in order to find the optimum conditions for nanocomposite synthesis. Dispersion and exfoliation of nanoclays in the polymer nanocomposites were characterized via XRD and TEM. Single and multi layer films were prepared initially in lab scale and characterized. Subsequently, ... |
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| Failure Surfaces for the Design of Ceramic-Lined Gun Tubes |
DEC 2004 |
7 pages |
| Authors:
Robert Carter; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD
|
| It is desired to incorporate advanced materials in gun barrels to increase service life, enable advanced propellants to provide for increased kinetic energy, and decrease system weight. Ceramic materials possess superior erosion resistance, high temperature performance, and lower density than steel making them attractive candidates as gun tube liners. A new design approach is necessary to address the large variability in strength, one that is probabilistic instead of deterministic in ... |
|
| Explosive Bonding of Refractory Metal Liners |
AUG 2004 |
42 pages |
| Authors:
William S. De Rosset; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD
|
| TPL, Inc. has successfully bonded a pure tantalum liner to the inside of an M242 Bushmaster barrel using a low-detonation- velocity explosive. This report examines the governing equations of the explosive bonding process as they apply to this particular situation. The relevant properties of other higher strength tantalum alloys are examined to see if they are suitable for explosive bonding. with the expectation that they would be better able to ... |
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| Molecular Biology and Prevention of Endometrial Cancer |
JUL 2004 |
12 pages |
| Authors:
George L. Maxwell; HENRY M JACKSON FOUNDATION FOR THE ADVANCEMENT OF MILITARY MEDICINE ROCKVILLEMD
|
| To increase our understanding of the molecular aberrations associated with endometrial carcinogenesis and the biologic mechanisms underlying the protective effect of oral contraceptive therapy. Methods: 1) Oligonucleotide microarray analysis was performed on a panel of endometrial cancers. 2) A subset of adenocarcinoma cases from the International DES Registry was analyzed for MSI and the poor quality of the DNA from many of these cases prohibited an adequate analysis of the ... |
|
| Chemical and Biological Barrier Materials for Collective Protection |
19 NOV 2003 |
29 pages |
| Authors:
Kristian Donahue; ARMY SOLDIER AND BIOLOGICAL CHEMICAL COMMAND NATICK MA
|
| Examples of barrier materials are butyl rubbers, chlorinated aliphatics, fluorinated polymers. Characteristics of barrier materials are: thermal stability, flame resistance, ease of decontamination, longevity, leakage points, weight, durability (flexibility, abrasion, crackle), and cost. |
|
| Melt Blown Fabrics for Chemical Protective Liners |
APR 2003 |
33 pages |
| Authors:
Larry C. Wadsworth; Youn E. Lee; TENNESSEE UNIV KNOXVILLE TEXTILES AND NONWOVENS DEVELOPMENT CENTER
|
| Novel melt blown fabrics were processed from thermoplastic polyurethanes (TPU) using both a 6-inch and a 20-inch melt blowing (MB) line at the University of Tennessee's Textile and Nonwovens Development Center (TANDEC) These nonwovens were developed to determine the processing conditions to produce the finest fiber and most uniform nonwoven fabrics possible with TPUs to be potential candidate fabrics for new chemical protective clothing designs This study was performed in ... |
|
| Accelerated Drying of Wet Boots |
NOV 2002 |
|
| Authors:
Walter R. Dyck; DEFENCE RESEARCH AND DEVELOPMENT CANADAOTTAWA (ONTARIO)
|
 | Much has been written about materials known as 'super absorbers' with respect to their ability to keep the skin dry in the presence of moisture. One such material is sodium polyacrylate. Because recent field trials with Canadian Forces soldiers have reconfirmed that donning wet combat boots is very uncomfortable, a study was done to assess the efficacy of using sodium polyacrylate based drying pads to dry wet combat boots in ... |
|
| Retention of Pre-Construction Primer in Tank Coating System |
NOV 2002 |
94 pages |
| Authors:
Judie Blakey; Steve Cogswell; Scott DeVinney; Walt FDortenberry; Ernie Miquez; NATIONAL STEEL AND SHIPBUILDING CO SAN DIEGO CA
|
| The overall objective of this project is to investigate the feasibility of retaining preconstruction primer (PCP) as the permanent primer for protective coatings systems applied in ballast tanks. Should the retention of PCP be proven as a viable option, then the process of coatings application in US shipbuilding can be improved resulting in cost savings. New construction dollars will not be spent to remove the PCP prior to the application ... |
|
| Design, Fabrication and Test of a Full Scale Copper Tubular Combustion Chamber |
10 JUL 2002 |
15 pages |
| Authors:
Christine Cooley; Steve Fentress; T. Jennings; PRATT AND WHITNEY WEST PALM BEACH FL
|
| This paper presents the design fabrication and test of a full scale copper tubular combustion chamber as an enabling technology for future application in a high thrust upper-stage expander-cycle engine. The advanced expander combustor (AEC) was developed by Pratt & Whitney Space Propulsion under contract with the United States Air Force Research Laboratory (AFRL) to support the Integrated High Payoff Rocket Propulsion Technology (IHPRPT) initiative. The AEC copper tubular design ... |
|
| Fire Fighter Garment with Non Textile Insulation |
APR 2002 |
3 pages |
| Authors:
Wolfgang Nocker; Johann Seibert; GORE (W L) GMBH PUTZBRUNN (GERMANY)
|
| A waterproof barrier combined with heat stable stable 'spacers' creates the thermal insulating air buffer. Fire fighting suits with the new insulation system fullfill thermal protection according EN 366 and EN 367 and are successful in thermo-man test of DuPont. A controlled wear trial in a climatic chamber showed a higher physiological performance of the new system compared to traditional ones (GORE-TEX(registered) and leather with non woven insulation). |
|
| Meltblowns for Chemical Protective Liners |
28 MAR 2002 |
26 pages |
| Authors:
Larry C. Wadsworth; Youn E. Lee; Heidi L. Schreuder-Gibson; Phillip W. Gibson; TENNESSEE UNIV KNOXVILLE TEXTILES AND NONWOVENS DEVELOPMENT CENTER
|
| The purpose of chemical protective clothing is to shield or isolate individuals from the chemical, physical, and biological hazards that may be encountered in potentially hazardous environments, including biological hazards. When dealing with hazardous materials or working in toxic environment, chemical protective clothing is critical to guard against the effects of toxic products, which could enter the body through inhalation or skin absorption, or cause tissue damage upon contact with ... |
|
| High-Rate Sputter-Deposited Tantalum Coatings on a Steel Liner for Wear and Erosion Mitigation |
AUG 2001 |
29 pages |
| Authors:
S. L. Lee; J. Cox; D. Windover; M. Audino; D. W. Matson; ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER WATERVLIET NY BENET LABS
|
| A prototype, rifled steel liner of 20-min inside diameter was coated with -50 to 125 micronmeter tantalum at -22.6 micronmeter/hour in krypton gas using a triode-sputter system. It was test fired with l5OO rounds for the mitigation of high-temperature and pressure wear and erosion. Growth surface analysis showed predominately alpha-phase and minimal beta-phase surface tantalum. Area detector images showed near random, slight preferred (211) crystalline orientation. X-ray diffraction revealed a ... |
|
| Biomimicry-Based Strategy Towards the Development of a Structure- Function Map of the Glutamate Receptor Pore |
01 MAY 2001 |
|
| Authors:
Mauricio Montal; CALIFORNIA UNIV SAN DIEGO LA JOLLA OFFICE OF CONTRACT AND GRANT ADMINISTRATION
|
| The main goal of this program was to establish a low resolution map for the pore-forming structure of the N-methyl-D-aspartate (NMDA) receptor, a major excitatory neurotransmitter receptor thought to be crucial for synaptic plasticity and neurotoxicity. Open channel blocker libraries were used as specific probes to explore accessibility of pore lining residues and, accordingly, infer the intricacies of the channel structure. The functional assay to identify channel blockers from synthetic ... |
|
| Evaluation of Monolithic Ceramics and Ceramic Thermal Barrier Coatings for Diesel Engine Applications |
MAR 2001 |
40 pages |
| Authors:
Jeffrey J. Swab; Paul J. Huang; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE
|
| The Metals and Ceramics Research Branch (MCRB) of the Weapons and Materials Research Directorate is providing ceramic material characterization and evaluation to the Tank Automotive Research, Development, and Engineering Center (TARDEC) as a part of a project entitled "Fighting Vehicle Propulsion Technology Using Ceramic Materials." Through research and exploratory development of advanced ceramics and other technologies, the objective of this project is to improve the mobility of future Army fighting ... |
|
| Characterization of Tantalum Liners Applied to 25-mm and 120-mm Cannon Bore Sections via Explosive Bonding |
FEB 2001 |
23 pages |
| Authors:
G. Vigilante; T. Sage; G. Kendall; P. Cote; S. Lee; ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER WATERVLIET NY BENET WEAPONS LAB
|
| A materials forensics analysis was performed on sections of 25-mm rifled and 120-mm smoothbore gun tubes that were explosively bonded with pure tantalum. Characterization tests included liner thickness measurements, profilometry/surface finish, x-ray diffraction, and microstructural analysis including microhardness, scanning electron microscopy, energy dispersive spectroscopy, and adhesion testing. Results indicate that there was good adhesion. However, there was evidence that the explosive bonding process was overly energetic; both adiabatic shear bands ... |
|
| Cost and Performance Report for Tri-Service Site Characterization and Analysis Penetrometer System (SCAPS) Thermal Desorption Sampler for Volatile Organic Compounds |
FEB 2001 |
46 pages |
| Authors:
Karen F. Myers; Jed Costanza; Dan Y. Eng; Richard A. Karn; Karl F. Konecny; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS ENVIRONMENTAL LAB
|
| The thermal desorption sampler (TDS), developed for the Site Characterization and Analysis Penetrometer System (SCAPS) program provides in situ analysis of volatile organic compounds (VOCs) in vadose zone and saturated soils. In operation, the TDS captures an estimated quantity of soil below ground, thermally desorbs the VOCs, and transfers them to the surface where they are analyzed on a field portable ion trap mass spectrometer (ITMS). This analysis is sensitive ... |
|
| Role of Diet in the Initiation and Prevention of Breast Cancer |
AUG 2000 |
20 pages |
| Authors:
Amy J. Lewis; MEDICAL COLL OF SOUTH CAROLINA CHARLESTON
|
| The purpose of the above titled postdoctoral trainee ship was to complete several tasks focused upon further establishing the role of EST in the bioactivation of the cooked-food mutagen and breast carcinogen N-OH- PhIP and establishing how bioflavonoids may be used to prevent this bioactivation process. Task #1, as outlined in the statement of work, listed several goals to help define the involvement of EST in bioactivation of N-OH-PhIP in ... |
|
| Role of Diet in the Initiation and Prevention of Breast Cancer |
JUN 2000 |
32 pages |
| Authors:
Amy J. Lewis; Thomas Walle; MEDICAL UNIV OF SOUTH CAROLINA CHARLESTON
|
| The purpose of the above titled postdoctoral traineeship was to complete several tasks focused upon further establishing the role of EST in the bioactivation of the cooked-food mutagen and breast carcinogen N-OH- PhIP and establishing how bioflavonoids may be used to prevent this bioactivation process. Task #1, as outlined in the statement of work, listed several goals to help define the involvement of EST in ... |
|
| The Influence of Honing on the Wear of Ceramic Coated Piston Rings and Cylinder Liners |
FEB 2000 |
11 pages |
| Authors:
Kevin C. Radil; NATIONAL AERONAUTICS AND SPACE ADMINISTRATION CLEVELAND OH GLENN RESEARCH CENTER
|
| Reciprocating wear tests were performed to investigate the effects of honing on the wear of ceramic coated piston rings and cylinder liners. The baseline or control cases consisted of testing ceramic coated rings against ceramic coated liner specimens whose surfaces were ground and lapped smooth. A second series of tests were performed with liner specimens with base and plateau honed surfaces. Test conditions were chosen to simulate ... |
|
| Tri-Service Site Characterization and Analysis Penetrometer System (SCAPS) Validation of the Thermal Desorption Sampler for Volatile Organic Compounds |
DEC 1999 |
100 pages |
| Authors:
Karen F. Myers; Richard A. Karn; Dan Y. Eng; Karl F. Konecny; William M. Davis; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS ENVIRONMENTAL LAB
|
| Volatile organic compounds (VOCs) are among the most frequently identified contaminants in soil and groundwater samples obtained during investigation of hazardous waste sites. The thermal desorption sampler (TDS), was developed for the Site Characterization and Analysis Penetrometer System (SCAPS) program to provide in situ analysis of VOCs in vadose zone and saturated soils. In operation, the TDS captures an estimated quantity of soil below ground, ... |
|
| Evaluation of the Effects of the ZetaLiner During Helmet Impact |
NOV 1999 |
36 pages |
| Authors:
Chris E. Perry; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH HUMAN EFFECTIVENESS DIRECTORATE
|
| An experimental effort was conducted to compare the ZetaLiner, a new foam flight helmet liner manufactured by Oregon Aero, to the Thermal Plastic Liner (TPL), the helmet liner used in the USAF's standard flight helmet, the HGU-55/P. The liners were compared based on their effectiveness in attenuating impact acceleration and minimizing head injury potential. A series of vertical drops with a Helmet Drop Tower (HDT) ... |
|
| Analysis of Molten Salt and Sputter-Deposited Coatings on Steel Cylinders |
OCT 1999 |
28 pages |
| Authors:
S. L. Lee; M. Cipollo; D. Windover; C. Rickard; WATERVLIET ARSENAL NY BENET WEAPONS LAB
|
| Prototype tantalum coatings, electrochemically deposited from a molten salt onto 20-mm interior bore steel liners, exhibited superior wear and erosion behavior compared to chromium coatings. The liners were subjected to cyclic exposures of high temperature, pressure, and an aggressive chemical environment. X-ray analysis of the coatings revealed a low-hardness, randomly- oriented, body-centered-cubic, alpha-phase tantalum. Formation of tantalum oxides (predominantly Ta2O5), swaging due to the low-hardness of the coatings, a 2-micrometers ... |
|
| An Evaluation of Prototype Electrically Heated Handwear |
1999 |
35 pages |
| Authors:
William R. Santee; Stephen P. Mullen; Bradley S. Laprise; Laurie A. Blanchard; ARMY RESEARCH INST OF ENVIRONMENTAL MEDICINE NATICK MA
|
| This study compared the responses of eight subjects wearing prototype electrically heated gloves and unheated handwear at 0 deg C, -9 deg C and - 18 deg C. The premise of the study was that the electrically heated gloves would maintain hand warmth at least equal to bulkier issue gloves, thus enhancing performance by reducing handwear bulk. Finger temperatures and endurance time were measured while the subjects wore either a ... |
|
| Feasibility Study for Evaluating Redistribution of Juvenile Salmon in the McNary Bypass Channel Using Behavioral Technologies: 1996 |
NOV 1998 |
49 pages |
| Authors:
Peter N. Johnson; Gene R. Ploskey; Thomas J. Carlson; John M. Nestler; Jim Evans; ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS ENVIRONMENTAL LAB
|
| Evaluation of behavioral technologies to redistribute juvenile salmon in dewatering sections of a bypass channel encompassed two study years. The first year (Fiscal Year 1996) was preliminary and focused on two objectives: (a) characterizing the acoustic environment in selected areas of the McNary bypass channel; and (b) evaluating the feasibility of using video cameras to image salmon smolt in the McNary channel. We characterized underwater sound fields by measuring sound ... |
|
| Design for Navigation Improvements at Nome Harbor, Alaska Coastal Model Investigation |
SEP 1998 |
154 pages |
| Authors:
Robert R. Bottin Jr.; Hugh F. Acuff; ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS
|
| A 1:90-scale (undistorted) three dimensional coastal hydraulic model was used to investigate the design of proposed navigation improvements at Nome Harbor, Alaska, with respect to wave, current, and shoaling conditions at the site. The model reproduced about 3,350 m (11,000 ft) of the Alaskan shoreline, the existing harbor and lower reaches of the Snake River, and sufficient offshore bathymetry in the Norton Sound to permit ... |
|
| Testing and Evaluation of the IVAC MedSystem III Multi-Channel Infusion Pump and IVAC AC Power Adapter, Model 1555 |
JUN 1998 |
19 pages |
| Authors:
Allen E. Jones; AIR FORCE RESEARCH LAB BROOKS AFB TX HUMAN EFFECTIVENESS DIRECTORATE
|
| The MedSystem III is a multichannel infusion pump which has three independent fluid delivery systems in the space of one. The MedSystem III provides an accurate delivery of a variety of fluids, and uses administration sets that provide free flow protection. The MedSystem III displays infusion status for rate, volume remaining and volume infused. The rate range is from 0.1 - 999 milliliter per hour on each channel. Infusions can ... |
|
| Arresting the Collapse of a Shaped Charge |
MAR 1998 |
|
| Authors:
William P. Walters; Daniel R. Scheffler; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD
|
| A novel technique is presented to inhibit the collapse of a liner from a shaped charge device containing the full explosive load. The technique involves the use of wood or plastic (Lexan), a steel mandrel, and a momentum trap. The wood or plastic acts to attenuate the generated shock waves and allows complete recovery of the liner apex region and most of the remaining liner material. ... |
|
| Sol-Gel Production; Proceedings of the First International Conference onApplication and Commercialization of Sol-Gel Processing Held in Saarbruecken, Germany on 24-25 May 1993 |
1998 |
127 pages |
| Authors:
Helmut Schmidt; INSTITUT FUER NEUE MATERIALIEN IM STADTWALD GEBAUDE SAARBRUECKEN (GERMANY)
|
| Partial contents: Sol-Gel Production of Silica Microparticles; Synthesis of Zircon-Based Ceramic Pigments via Sol-Gel Methods; Sol-Gel Ceramic Pigments; Characterization of Oxide Layers Deposited by Sol-Gel; Mechanical Precision in Sol-Gel Manufacturing of 3-D Components; On the Thermal and Photochemical Stabilities of Photochromic Spirooxazine Dyes Encapsulated in Ormocer Matrices Derived by Sol-Gel Processing; Sol-Gel Coatings on Large Glass Substrates for Multilayer Interference Systems; A SiO2-ZrO2 Gel ... |
|
| Power Cylinder Non-Metallic Liner Seal Assembly. |
13 AUG 1997 |
18 pages |
| Authors:
James E. McGrath; Nicholas O. Venier; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| Corrosion resistance is provided for a power cylinder by providing a preloaded molded urethane elastomer sleeve liner within an outer cylinder of material such as a copper/nickel alloy which is subject to corrosion from long-term exposure to ambient fluids such as sea water. Preloading is preferably provided by thermal shrink fitting of the molded urethane sleeve liner to the inner bore of an outer metal cylinder. Preloading of a structure ... |
|
| Test Method to Evaluate Cylinder Liner-Piston Ring Coatings for Advanced Heat Engines |
AUG 97 |
13 pages |
| Authors:
Kevin C. Radil; NATIONAL AERONAUTICS AND SPACE ADMINISTRATION CLEVELAND OH LEWIS RESEARCH CEN TER
|
| A tribological test method has been developed to assess candidate high temperature piston ring and cylinder liner coatings for advanced heavy duty diesel engines. A reciprocating test rig is employed to reproduce the boundary lubricated conditions existing at the piston ring-cylinder liner interface during top ring reversal (TRR). The test specimens are fabricated from commercially available piston rings and cylinder liners to facilitate direct comparisons with current diesel engines. A ... |
|
| Control of Lead in Drinking Water |
11 JUL 1997 |
112 pages |
| Authors:
Robert F. Brady Jr.; James D. Adkins; NAVAL RESEARCH LAB MATERIALS CHEMISTRY BRANCH
|
| This report describes the installation of an NRL-developed epoxy lining in the drinking water distribution system in three buildings. Water was sampled before and after installation of the lining; the sampling data was interpreted after several confounding factors were identified and allowed for. Improper installation of the lining in one of the buildings led to its premature failure, and this was documented and analyzed. The lining is shown to be ... |
|
| User's Guide for FAR23 Loads Program |
MAR 97 |
143 pages |
| Authors:
P. Miedlar; DAYTON UNIV OH RESEARCH INST
|
| The FAR23 Loads program provides a procedure for calculating the loads on an airplane according to the Code of Federal Regulations, Title l4- Aeronautics and Space, Chapter I-Federal Aviation Administration, Subchapter C- Aircraft, Part 23 Airworthiness Standards: Normal, Utility, Aerobatics, and Commuter Category Airplanes, Subpart C-Structures. Most of the detail flight loads are developed from the flight envelopes specified in FARs 23.333 and 23. 345. At every point specified in ... |
|
| Development of a Laboratory Test to Predict Scuffing Performance of High-Temperature Engine Oils |
JAN 97 |
44 pages |
| Authors:
P. I. Lacey; E. A. Frame; SOUTHWEST RESEARCH INST SAN ANTONIO TX TARDEC FUELS AND LUBRICANTS RESEARCH F ACILITY
|
| The requirements placed on lubricating oils at the top ring reversal point are becoming increasingly severe due to recent changes in engine technology, most of which are driven by emissions regulations. As a result, revised engine tests to evaluate cylinder liner scuffing are being introduced to engine oil specifications. Despite the high cost and generally poor repeatability of full-scale engine data, no laboratory screener test is commercially available. In the ... |
|
| International Space Station Passive and Active Common Berthing Mechanism Thermal Cycle Test |
SEP 96 |
57 pages |
| Authors:
J. D. Sisco; L. G. Rogers; J. S. Wilkerson; W. G. Burt; ARNOLD ENGINEERING DEVELOPMENT CENTER ARNOLD AFS TN
|
| The International Space Station Alpha Common Berthing Mechanism (CBM) thermal cycle test was conducted in the Arnold Engineering Development Center (AEDC) 12V Thermal Vacuum Chamber. The CBM is the primary mechanical interface for joining the International Space Station Alpha modules on-orbit. The CBM system consists of a pair of 6-ft-diam rings with the appropriate means to seal the joint upon mating. The first ring, called Active CBM (ACBM), houses the ... |
|
| Restoration of drinking Water Piping with Nontoxic Epoxy Linings |
MAY 1996 |
6 pages |
| Authors:
Robert F. Brady Jr; NAVAL RESEARCH LAB WASHINGTON DC MATERIALS CHEMISTRY BRANCH
|
| It is now possible to rehabilitate deteriorated drinking water systems by installing a non-toxic lining which prevents corrosion and leaching of lead and other heavy metals into drinking water. This method is (1) rapid (less than 48 hours), (2) suitable for use aboard ship, inside buildings and underground, (3) effective in bent pipes and pipes of different diameters, (4) economical compared with the cost of replacing pipe, (5) practical for ... |
|
| Hydrocode Simulation of Flexilinear Shaped Charge Jet Penetration Into an Explosive Filled Cylinder |
MAR 96 |
106 pages |
| Authors:
George A. Gazonas; Steven B. Segletes; Carl V. Paxton; Joseph W. Gardiner; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD
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| This report presents the results of a combined numerical and experimental investigation of the penetration of a flexilinear shaped demolition charge into an explosive-filled, thin-walled aluminum cylinder. Computations and experiments were conducted using both CompB and LX-14 as the explosive fill in the aluminum cylinder. The 225 grains per foot (gpf) flexilinear shaped charge (FLSE) was composed of CH-6 high explosive encased in a seamless lead sheath liner. The numerical ... |
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| Obtaining and Transferring Soils for In-Vial Analysis of Volatile Organic Compounds |
FEB 96 |
16 pages |
| Authors:
Alan D. Hewitt; Nicole J. Lukash; COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH
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| The ability to retain volatile organic compounds (VOCs) while collecting and transferring intact soils for in-vial analysis was evaluated with field and laboratory samples. Experiments were designed to assess if VOC concentrations are maintained in an intact soil sample when (1) held for under an hour in a metal core liner, (2) held for days in a metal core liner sealed with TFE-flourocarbon sheets or aluminum foil (ASTM D4547-91), (3) ... |
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| International Aircraft Materials Fire Test Working Group. Material Systems Renovation and Repair Subgroup |
FEB 96 |
37 pages |
| Authors:
Timothy Marker; FEDERAL AVIATION ADMINISTRATION TECHNICAL CENTER ATLANTIC CITY NJ
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| In an effort to simplify the often complex task of certifying material fire testing methods throughout the aviation/aerospace industry, the International Aircraft Materials Fire Test Working Group was formed. The scope of the working group encompasses the standardization of FAA certification procedures of all material fire tests as well as the solving of new problems which exist with the current test methods. The working group investigates such tests as the ... |
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| Supercritical Water Oxidation Reactor with a Corrosion-Resistant Lining. |
24 OCT 1995 |
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| Authors:
George W. Nauflett; Robert E. Farncomb; M. L. Kumar; DEPARTMENT OF THE NAVY WASHINGTON DC
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| A supercritical water oxidation reactor includes a vessel with an interior surface, two cooling sections, a heat exchanger, an oxygenating section, a pump, and a trap. The interior surface of the vessel has a corrosion-resistant, artificial ceramic or diamond-like coating. The artificial diamond coating is thin and crystal-like in structure. The heat exchanger is located between the two cooling sections. The heat exchanger and the two cooling sections surround the ... |
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| Breast Duct Endoscopy as a Means of Obtaining and Studying Precancerous Ductal Epithelial Cells |
13 SEP 95 |
34 pages |
| Authors:
Susan M. Love; CALIFORNIA UNIV LOS ANGELES
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| One limiting factor all of breast cancer prevention research has been our lack of intermediate markers of breast cancer risk. The main reason we have been unable to identify such markers is that we do not have ready, reproducible, non traumatic access to the lining epithelium. Since most breast cancer starts in the epithelial lining of one of the six-to-nine milk ducts found in each breast, breast duct endoscopy and ... |
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