740 Matching Results

Search Results

Results: 1 - 24 next
open access

Advanced drilling systems study.

Description: This report documents the results of a study of advanced drilling concepts conducted jointly for the Natural Gas Technology Branch and the Geothermal Division of the U.S. Department of Energy. A number of alternative rock cutting concepts and drilling systems are examined. The systems cover the range from current technology, through ongoing efforts in drilling research, to highly speculative concepts. Cutting mechanisms that induce stress mechanically, hydraulically, and thermally are included.… more
Date: May 1, 1996
Creator: Pierce, Kenneth G.; Livesay, Billy Joe & Finger, John Travis (Livesay Consultants, Encintas, CA)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Hatchery Evaluation Report/Lyons Ferry Hatchery - Summer Steelhead : an Independent Audit Based on Integrated Hatchery Operations Team (IHOT) Performance Measures.

Description: This report presents the findings of the independent audit of the Lyons Ferry Hatchery (Summer Steelhead). Lyons Ferry Hatchery is located downstream of the confluence of the Palouse and Snake rivers, about 7 miles west of Starbuck, Washington. The hatchery is used for adult collection of tall chinook and summer steelhead, egg incubation of fall chinook, spring chinook, steelhead, and rainbow trout and rearing of fall chinook, spring chinook, summer steelhead, and rainbow trout. The audit was c… more
Date: May 1, 1996
Creator: Watson, Montgomery
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Hatchery Evaluation Report/Rapid River Hatchery - Spring Chinook : An Independent Audit Based on Integrated Hatchery Operations Team (IHOT) Performance Measures.

Description: This report presents the findings of the independent audit of the Rapid River Hatchery (Spring Chinook). The hatchery is located in the lower Snake River basin near Riggins Idaho. The hatchery is used for adult collection egg incubation, and rearing of spring chinook. The audit was conducted in April 1996 as part of a two-year effort that will include 67 hatcheries and satellite facilities located on the Columbia and Snake River system in Idaho, Oregon, and Washington. The hatchery operating ag… more
Date: May 1, 1996
Creator: Watson, Montgomery
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

System Definition and Analysis: Power Plant Design and Layout

Description: This is the Topical report for Task 6.0, Phase 2 of the Advanced Turbine Systems (ATS) Program. The report describes work by Westinghouse and the subcontractor, Gilbert/Commonwealth, in the fulfillment of completing Task 6.0. A conceptual design for critical and noncritical components of the gas fired combustion turbine system was completed. The conceptual design included specifications for the flange to flange gas turbine, power plant components, and balance of plant equipment. The ATS engine … more
Date: May 1, 1996
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The effects of silicon doping on the performance of PMAN carbon anodes in Li-ion cells

Description: Carbons derived from polymethylacrylonitrile (PMAN) have been studied for use as intercalation anodes in Li-ion cells. The effect of Si doping upon the electrochemical performance of PMAN carbons was studied using tetravinylsilane (TVS) and tetramethysilane (TMS) as sources of Si during the formation of the PMAN precursors. The carbons were characterized by galvanostatic cycling, cyclic voltammetry, and complex impedance. The presence of 9 to 11 w/o Si in the PMAN lattice greatly increased the … more
Date: May 1, 1996
Creator: Guidotti, Ronald A.; Johnson, Bryan J. & Even, William, Jr.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Getting to necessary and sufficient-developing accident scenarios for risk assessment

Description: This paper presents a simple, systematic approach for developing accident scenarios using generic accident types. Result is a necessary and sufficient set of accident scenarios that can be used to establish the safety envelope for a facility or operation. Us of this approach along with the methodology of SAND95-0320 will yield more consistent accident analyses between facilities and provide a sound basis for allocating limited risk reduction resources.
Date: May 1, 1996
Creator: Mahn, Jeffrey A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Expanding the role of internal facility assessments

Description: The US Air Force (USAF) Environmental Compliance Assessment and Management Program (ECAMP) is an effective and comprehensive system to evaluate environmental compliance at individual USAF installations. The ECAMP assessment is typically performed by a team of experts from the installation`s Major Command (MAJCOM) Headquarters, and is often augmented with technical contractor support. As directed by Air Force policy, an external ECAMP assessment is required at a minimum of every three years for … more
Date: May 1, 1996
Creator: Kolpa, Ronald L.; Levenson, James B. & Weaver, Marja A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Evaluating the quality and effectiveness of hazardous waste training programs

Description: An installation`s compliance with Resource Conservation and Recovery Act (RCRA) hazardous waste regulations is strongly dependent on the knowledge, skill, and behavior of all individuals involved in the generation and management of hazardous waste. Recognizing this, Headquarters Air Force Materiel Command (HQ/AFMC) determined that an in-depth evaluation of hazardous waste training programs at each AFMC installation was an appropriate element in assessing the overall effectiveness of installatio… more
Date: May 1, 1996
Creator: Kolpa, Ronald L.; Haffenden, Rebecca A. & Weaver, Marja A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Bounce Averaged Trapped Electron Fluid Equations for Plasma Turbulence

Description: A novel set of nonlinear fluid equations for mirror-trapped electrons is developed which differs from conventional fluid equations in two main respects: (1) the trapped-fluid moments average over only two of three velocity space dimensions, retaining the full pitch angle dependence of the traped electron dynamics, and (2) closure approximations include the effects of collisionless wave-particle resonances with the toroidal precession drift. By speeding up calculations by at least {radical} m{su… more
Date: May 1, 1996
Creator: Beer, M. A. & Hammett, G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Selective, pulsed CVD of platinum on microfilament gas sensors

Description: A post-processing, selective micro-chemical vapor deposition (``micro-CVD``) technology for the deposition of catalytic films on surface-micromachined, nitride-passivated polysilicon filaments has been investigated. Atmospheric pressure deposition of Pt on microfilaments was accomplished by thermal decomposition of Pt acetylacetonate; deposition occurs selectively only on those filaments which are electrically heated. Catalyst morphology, characterized by SEM, can be controlled by altering depo… more
Date: May 1, 1996
Creator: Manginell, Ronald P.; Smith, James H.; Ricco, Antonio J.; Moreno, Daniel J.; Hughes, Robert C.; Huber, Robert J. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

New developments in fluorofullerenes chemistry

Description: Flurofullerenes were among the first chemical derivatives prepared from new spherical forms of carbon, yet it took 3 years of research to isolate the first single compound, C{sub 60}F{sub 48}. Subsequent studies provided a better understanding of physical and chemical properties of this compound. Here we present new data concerning synthesis, reactions, and properties of C{sub 60}F{sub 48}.
Date: May 1, 1996
Creator: Gakh, Andrei A.; Sachleben, Richard A.; Hagaman, Edward W. & Tuinman, Albert A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Development of sol-gel derived coating for NICALON{sup TM}/SiC composites

Description: Mullite and aluminum titanate precursor polymeric sols were developed for applying as coatings on Nicalon{trademark} fabrics and tows. A Nicalon{trademark}/SiC composite with a mullite interface was fabricated. The mullite precursor interface coatings were applied by a vacuum infiltration method and the SiC matrix was deposited by a forced flow chemical vapor infiltration process. Thin, uniform mullite interface coatings were obtained. However, the Nicalon{trademark}/SiC composite exhibited bri… more
Date: May 1, 1996
Creator: Shanmugham, S.; Liaw, P. K.; Stinton, D. P.; Besmann, T. M.; More, K. L.; Bleier, A. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: Menu claims]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: May 1, 1996, 5:00 p.m.
Duration: 1 minute 50 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Amber]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 10 P.M.
Date: May 1, 1996
Duration: 1 minute 40 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: DPD cash]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 10 P.M.
Date: May 1, 1996
Duration: 1 minute 54 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
open access

What is the potential predictability of seasonal floods and droughts?

Description: The potential predictability (PP) of seasonal anomalies in continental hydrology may be thought of as the upper bound in forecast accuracy to be expected when the state of the oceans is known perfectly. We assume that the PP of the seasonal anomalies of continental hydrology is related to their degree of reproducibility in the presence of identical ocean boundary conditions across a number of simulations. In this study, the PP of seasonal anomalies in surface hydrological variables is estimated… more
Date: May 1, 1996
Creator: Phillips, T. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Testing of an impedance heating system for solar power tower applications

Description: A non-conventional type of heating system is being tested at Sandia National Laboratories for solar thermal power tower applications. In this system, called impedance heating, electric current flows directly through the pipe to maintain the desired temperature. The pipe becomes the resistor where the heat is generated. Impedance heating has many advantages over previously used mineral insulated (MI) heat trace. An impedance heating system should be much more reliable than heat trace cable since… more
Date: May 1, 1996
Creator: Pacheco, James E. & Kolb, William J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Dense ceramic membranes for methane conversion

Description: This report focuses on a mechanism for oxygen transport through mixed- oxide conductors as used in dense ceramic membrane reactors for the partial oxidation of methane to syngas (CO and H{sub 2}). The in-situ separation of O{sub 2} from air by the membrane reactor saves the costly cryogenic separation step that is required in conventional syngas production. The mixed oxide of choice is SrCo{sub 0.5}FeO{sub x}, which exhibits high oxygen permeability and has been shown in previous studies to pos… more
Date: May 1, 1996
Creator: Balachandran, U.; Mieville, R. L.; Ma, B. & Udovich, C. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Oxygen transport by oxygen potential gradient in dense ceramic oxide membranes

Description: Numerous studies have been conducted in recent years on the partial oxidation of methane to synthesis gas (syngas: CO + H{sub 2}) with air as the oxidant. In partial oxidation, a mixed-oxide ceramic membrane selectively transports oxygen from the air; this transport is driven by the oxygen potential gradient. Of the several ceramic materials the authors have tested, a mixed oxide based on the Sr-Fe-Co-O system has been found to be very attractive. Extensive oxygen permeability data have been ob… more
Date: May 1, 1996
Creator: Maiya, P. S.; Balachandran, U.; Dusek, J. T.; Mieville, R. L.; Kleefisch, M. S. & Udovich, C. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Measurements of mean flow and eddy transport over a film cooling surface

Description: Results of an experimental study of the effects of blowing Velocity Ratio (VR = 0.5 and 1.0) and Free-Stream Turbulence Intensity (FSTI = 0.5% and 12%) on turbulent transport over a film-cooling test surface are presented. The surface has a single lateral row of streamwise-oriented holes angled 35{degree} from the surface and separated from one another by three hole diameters. The film cooling flow and mainstream flow are at the same temperature and the film cooling is supplied through long del… more
Date: May 1, 1996
Creator: Wang, L.; Tsang, H.; Simon, T. & Eckert, E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
Back to Top of Screen