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The Shape of a Shock Wave Derived from a Spherical Shock Wave Incident on a Concave Wedge

Description: When a one-half ounce spherical charge of high explosive is detonated over a flat plane bounded by a 5 degree incline, the type of phenomenon encountered depends on the distance from ground zero to a beginning of the incline. If this distance is 48" the wave assumes a smooth contour on the plane. Detailed investigation of the shock velocity above the plane reveals that there is a pressure gradient along the shock front for a considerable region which replaces the usual triple point.
Date: July 7, 1954
Creator: Todd, Jay, Jr. & Schellenbaum, Ralph L.
Partner: UNT Libraries Government Documents Department
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Heat Transfer Testing

Description: Several tests are being performed and others being planned to investigate the role of heat transfer in corrosion processes. These tests are measuring both corrosion rates of metals (Zr-2 and X-8001 aluminum) under heat transfer, and the temperature rise associated with the buildup of the corrosion product. A brief description of these tests is given in this report.
Date: July 7, 1959
Creator: Doman, D. R.; Hokenson, J.F. & Lobsinger, R. J.
Partner: UNT Libraries Government Documents Department
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Experimental observations on long pulse intense ion diode operation

Description: An experiment in which a long pulse electron beam diode is converted to a reflex ion diode is reported. The results further substantiate the model of reflex ion diode behavior as well as extend the duration of ion mode operation to greater than 500 nsec.
Date: July 7, 1976
Creator: Prono, D. S.; Clark, R. & Prestwich, K.
Partner: UNT Libraries Government Documents Department
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LASNEX: pondermotive force algorithm

Description: The new algorithm used to calculate the ponderomotive force in LASNEX is discussed. The algorithm is shown to be identical with the corresponding analytic expression when the WKB solution for the fields in a plane-parallel medium is used. LASNEX calculations performed to check the ponderomotive force algorithm are described. 2 figures.
Date: July 7, 1977
Creator: Harte, J. A. & Zimmerman, G. B.
Partner: UNT Libraries Government Documents Department
open access

User's manual for the CORTES GRAPHICS PACKAGE GRFPAK

Description: This report provides necessary user information to implement and use a graphics package for the CORTES finite-element computer programs. Complete input instructions are provided. Sample input and output are given.
Date: July 7, 1977
Partner: UNT Libraries Government Documents Department
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Measurement of the neutron-induced fission cross-section of /sup 243/Am relative to /sup 235/U from 0. 1 MeV to 30 MeV

Description: Continuing studies of fission cross-section ratios at Lawrence Livermore Laboratory have led to the measurement of the /sup 243/Am//sup 235/U fission cross-section ratio from 0.1 to 30 MeV. A value of 1.429 +- 0.037 was obtained for the average cross-section ratio from 1.75 to 4.00 MeV by use of the threshold method. 2 figures, 1 table.
Date: July 7, 1977
Creator: Behrens, J. W.
Partner: UNT Libraries Government Documents Department
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Oxygen electrode reaction in molten carbonate fuel cells

Description: Molten carbonate fuel cell system is a leading candidate for the utility power generation because of its high efficiency for fuel to AC power conversion, capability for an internal reforming, and a very low environmental impact. However, the performance of the molten carbonate fuel cell is limited by the oxygen reduction reaction and the cell life time is limited by the stability of the cathode material. An elucidation of oxygen reduction reaction in molten alkali carbonate is essential because… more
Date: July 7, 1992
Creator: Appleby, A. J. & White, R. E.
Partner: UNT Libraries Government Documents Department
open access

In-home demonstration of the reduction of woodstove emissions from the use of densified logs

Description: There is a need to reduce emissions from conventional wood stoves in the short-term while stove replacement takes place over the longer term. One possible is to use fuels that would burn cleaner than cordwood. Densified fuels have been commercially available for years and offer such a possibility. The objective of this project was to evaluate the emissions and efficiency performance of two commercially available densified log types in homes and compare their performance with cordwood. Researche… more
Date: July 7, 1992
Creator: Barnett, S. G. & Bighouse, R. D.
Partner: UNT Libraries Government Documents Department
open access

Evaluation of the Amperex 56 TVP photomultiplier

Description: Characteristics have been measured for the Amperex 56 TVP 42-mm-diameter photomultiplier. Some typical photomultiplier characteristics--such as gain, dark current, transit and rise times--are compared with data provided by the manufacturer. Photomultiplier characteristics generally not available from the manufacturer, such as the single photoelectron time spread, the relative collection efficiency, the relative anode pulse amplitude as a function of the voltage between the photocathode and focu… more
Date: July 7, 1976
Creator: Lo, C. C. & Leskovar, B.
Partner: UNT Libraries Government Documents Department
open access

Mica-based Composite Compressive Seals for SOFC

Description: One of the critical challenges facing planar solid oxide fuel cell (SOFC) technology is the need for reliable sealing technology. Seals are required for long-term stability and integrity in the high temperature SOFC environment during normal and transient operations. Several different approaches for sealing SOFC stacks are under development, including glass or glass-ceramic seals, metallic brazes, and compressive seals. Compressive seals potentially offer a significant and unique advantage over… more
Date: July 7, 2004
Creator: Chou, Y S.; Meinhardt, Kerry D.; Stevenson, Jeffry W. & Singh, Prabhakar
Partner: UNT Libraries Government Documents Department
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Synthesis of octane enhancers during slurry-phase Fischer-Tropsch. Quarterly technical progress report No. 8, July 1, 1992--September 30, 1992

Description: The initial work on the synthesis of MTBE during CO hydrogenation shows that MTBE cannot be formed directly on metal sites and likely requires the presence of an acid site. However, MTBE can be made successfully when an acid site, provided by the zeolites, is present in the vicinity of the methanol-synthesis metal sites. When i-butylene was added during CO hydrogenation over a composite catalyst consisting of Li-Pd/SiO{sub 2} and a hydrogen-zeolite, MTBE was formed in measurable amounts. The ma… more
Date: July 7, 1993
Creator: Marcelin, G.
Partner: UNT Libraries Government Documents Department
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Field studies of beach cones as coastal erosion control/reversal devices for areas with significant oil and gas activities. Annual report, February 24, 1993--February 23, 1994

Description: The primary objective of this project was to evaluate the utility of a device called the ``beach cone`` in combating coastal erosion. Seven initial sites were selected for testing beach cones in a variety of geometric configurations, and six sites were actually used. Six hundred beach cones were installed at the six sites in late July and early August, 1992. An additional 109 cones were installed at an eighth site in December of 1992. Findings indicate that beach cones accreted significant amou… more
Date: July 7, 1994
Creator: Law, V. J.
Partner: UNT Libraries Government Documents Department
open access

Performance report for a small package counter that uses active neutron interrogation

Description: An active neutron interrogation system utilizing the differential die-away technique (DDT), was built to assay fissile material in small waste packages for a variety of matrices. Within minutes the system can make a ``go/no-go`` decision for sorting low-level waste (LLW) from transuranic waste (TRUW). It can also provide gram-level accountability of weapons-grade (WG) Pu in TRUW providing lumps of self-shielding fissile material are absent.
Date: July 7, 1993
Creator: Harlan, R. A.; Wishard, B. E.; Santopietro, R. D. & Anderson, B. P.
Partner: UNT Libraries Government Documents Department
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Slow beam raster system at CEBAF

Description: A bedstead air-core raster magnet is being installed now, it will be used at CEBAF to scan the beam on the Hall C polarized target and the beam dump with fixed frequency 60 Hz in horizontal, 103.4 Hz in vertical. The x and y raster magnets are driven by Variac transformer and SUMIT-OMO inverter respectively. Both of them provide an approximate sine current waveform with peak current 20 A, corresponding to a maximum deflection angle 1 mr.
Date: July 7, 1994
Creator: Yan, C.; Beaufait, J.; Carlini, R.; Cuevas, C.; Vulcan, W. & Wines, R.
Partner: UNT Libraries Government Documents Department
open access

Feasibility of a novel approach for fast, economical determination of radiation damage in nuclear reactor cores. [Annual report, November 1, 1992--October 30, 1993]

Description: Progress was made in the following areas: radioinduced segregation (modeling and experiment), deformation of irradiated microstructures, stress corrosion cracking of irradiated microstructures, and development of an apparatus to determine the role of deformation on the radiation microstructure in-situ. Materials used were based on Ni-Cr-Fe and 304L.
Date: July 7, 1993
Creator: Was, G. S.
Partner: UNT Libraries Government Documents Department
open access

Production test IP-695-AC thorium oxide irradiation -- K Reactors

Description: Irradiation of thorium for the production of ``clean`` U-233 at HAPO began in CY 1963. Several small-scale tests, involving from gram-size quantities up to a few elements, were successfully conducted; the results from these tests, coupled with theoretical predictions, indicated the desirability of further investigation. The objectives of this test are to (1) authorize the irradiation of about two tons of thorium oxide target elements in central zone process tubes of KE Reactor, (2) determine th… more
Date: July 7, 1964
Creator: Gross, P. D. & Hladek, K. L.
Partner: UNT Libraries Government Documents Department
open access

Novel catalysts for methane activation. Quarterly report No. 2, January 1, 1993--March 31, 1993

Description: The objectives of this project are to test novel fullerene based catalysts for application in methane activation. Fullerenes are a recently discovered allotrope of carbon that have been found to possess unusual properties, some of which may be ideal for methane conversion to higher hydrocarbons. The project is divided into three technical tasks. Task 1 deals with the synthesis and characterization of the fullerenes and fullerene soots, Task 2 with the testing of the catalysts, and Task 3 with t… more
Date: July 7, 1993
Creator: Hirschon, A. S.; Malhotra, R. & Wilson, R. B.
Partner: UNT Libraries Government Documents Department
open access

In-Home Demonstration of the Reduction of Woodstove Emissions from the Use of Densified Logs.

Description: There is a need to reduce emissions from conventional wood stoves in the short-term while stove replacement takes place over the longer term. One possible is to use fuels that would burn cleaner than cordwood. Densified fuels have been commercially available for years and offer such a possibility. The objective of this project was to evaluate the emissions and efficiency performance of two commercially available densified log types in homes and compare their performance with cordwood. Researche… more
Date: July 7, 1992
Creator: Barnett, Stockton G. & Bidhouse, Roger D.
Partner: UNT Libraries Government Documents Department
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Mass and lifetime measurements with exclusive B reconstruction at CDF

Description: Lifetimes and masses of B mesons have been measured in exclusively reconstructed decays including J/{psi} {yields} {mu}{sup +} decays. In 19.3 pb{sup {minus}1} of {bar p}p collisions at {radical}s = 1.8 TeV taken in 19920--93 at the Fermilab Tevatron collider, approximately 300 B mesons have been fully reconstructed. The measurements require precise determination of the helical track parameters of charged particle tracks. We find M(B{sub S}{sup O}) = 5367.7 {plus_minus} 2.4 {plus_minus} 4.8 MeV… more
Date: July 7, 1994
Creator: Lewis, J. D.
Partner: UNT Libraries Government Documents Department
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Building 313 operations

Description: On June 3 the writer was detailed to the 300 Area to study operations in Bldg, 313. Seven days were spent with C shift in the caning and dipping area. In this period, a system of coordinating press cycles was developed to utilize machine time most effectively. Subsequently, a brief amount of time was spent working in a design of the can cleaning area so as to incorporate the aluminum can etching operation and facilitate the handling and flow of materials. The next stage of perhaps a week was de… more
Date: July 7, 1944
Creator: Venable, I. B.
Partner: UNT Libraries Government Documents Department
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Fuels Preparation Department monthly report, June 1961

Description: Production output of fuel elements during June was 108% of forecast. A new record high yield of 91.2% for 6-inch elements was established. Engineering of present reactor fuels and N-Reactor fuel development are described. (DLC)
Date: July 7, 1961
Partner: UNT Libraries Government Documents Department
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Inspection of the cost reduction incentive program at the Department of Energy`s Idaho Operations Office

Description: The purpose of this inspection was to review the economy and efficiency of Idaho`s Fiscal Year 1992 Cost Reduction Incentive Program, as well as to provide information to Departmental officials regarding any difficulties in administering these types of programs. The report is of the findings and recommendations. According to Idaho officials, their Cost Reduction Incentive Program was designed to motivate and provide incentives to management and operating contractors which would result in cost s… more
Date: July 7, 1994
Partner: UNT Libraries Government Documents Department
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