UNT Libraries Government Documents Department - 22 Matching Results

Search Results

Results: 1 - 22
open access

ANS-8. 23: Criticality accident emergency planning and response

Description: A study group has been formed under the auspices of ANS-8 to examine the need for a standard on nuclear criticality accident emergency planning and response. This standard would be ANS-8.23. ANSI/ANS-8.19-1984, Administrative Practices for Nuclear Criticality Safety, provides some guidance on the subject in Section 10 titled -- Planned Response to Nuclear Criticality Accidents. However, the study group has formed a consensus that Section 10 is inadequate in that technical guidance in addition t… more
Date: June 24, 1991
Creator: Pruvost, Norman L.
Item Type: Refine your search to only Article
open access

BPM System Improvements

Description: During the accelerator studies period of 12/90 through 1/91 the Accumulator BPM system was investigated in some detail in an effort to improve its reliability and accuracy in making closed orbit measurements. The motivation for this is to try and improve the beam energy resolution for E760. The relativistic {beta} of the {bar p} is given by {beta} = f{sub R}L/c where f{sub R} is the revolution frequency, L is the orbit length ({approx} 474050mm), and c is the speed of light. Hence, the error in… more
Date: April 24, 1991
Creator: Church, M.
Item Type: Refine your search to only Report
open access

D0 Experimental Area Emergency Backup Power and Generator Test

Description: The DO experimental area has a generator designated as emergency power. This generator provides power for critical loads and starts automatically upon loss of commercial power. This note concerns the testing of this generator. A list of loads is attached to this note. One of the loads on the emergency power grid is a 10KVA Uninterruptable Power Supply(UPS). The UPS powers the cryogenic controls and Oxygen deficiency hazard equipment(ODH) and has a minimum rating of 20 minutes while on its batte… more
Date: January 24, 1991
Creator: Markley, D.
Item Type: Refine your search to only Report
open access

Development of improved iron Fischer-Tropsch catalysts

Description: The objective of proposed research is development of catalysts with enhanced slurry phase activity and better selectivity to fuel range products, through a more detailed understanding and systematic studies of the effects of pretreatment procedures and promoters/binders (silica) on catalyst performance.
Date: April 24, 1991
Creator: Bukur, D.B.
Item Type: Refine your search to only Report
open access

Development of improved iron Fischer-Tropsch catalysts. Quarterly technical progress report, 1 January 1991--31 March 1991

Description: The objective of proposed research is development of catalysts with enhanced slurry phase activity and better selectivity to fuel range products, through a more detailed understanding and systematic studies of the effects of pretreatment procedures and promoters/binders (silica) on catalyst performance.
Date: April 24, 1991
Creator: Bukur, D. B.
Item Type: Refine your search to only Report
open access

The effect of yield strength on side-bonding upset welds

Description: During the course of 9{degree} tapered side-bonding resistance upset weld development at Mound, various studies have been conducted to evaluate the effect of yield strength on welds in 304L stainless steel. The results of these studies have concluded that at high yield strengths there may be a minor reduction in the length of Class 2 or better bond. Satisfactory welds have been produced with materials having yield strengths ranging from 36.0 to 141.0 ksi. However, when body yield strengths exce… more
Date: September 24, 1991
Creator: Miller, R. G. & Perkins, M. A.
Item Type: Refine your search to only Report
open access

Final design review of boron carbide safety rod

Description: The object of this paper discusses the design review of the boron carbide safety rod for the Westinghouse Savannah River Company. This paper reviewed information presented by personnel of the Savannah River Laboratory (SRL) Equipment Engineering Section, SRL Materials Technology Section and Reactor Materials Engineering and Technology. From this report, views, opinions and recommendations were made on the safety rod from materials testing to production.
Date: September 24, 1991
Creator: Lutz, R. N.
Item Type: Refine your search to only Report
open access

Final design review of boron carbide safety rod

Description: The object of this paper discusses the design review of the boron carbide safety rod for the Westinghouse Savannah River Company. This paper reviewed information presented by personnel of the Savannah River Laboratory (SRL) Equipment Engineering Section, SRL Materials Technology Section and Reactor Materials Engineering and Technology. From this report, views, opinions and recommendations were made on the safety rod from materials testing to production.
Date: September 24, 1991
Creator: Lutz, R. N.
Item Type: Refine your search to only Report
open access

Full-Scale Demonstration Low-NOx Cell Burner retrofit

Description: The overall objective of the Full-Scale Low-NOx Cell (LNC) Burner Retrofit project is to demonstrate the cost-effective reduction of NOx generated by a large, base-loaded (70% capacity factor or greater), coal-fired utility boiler. Specific objectives include: at least 50% NOx reduction over standard two-nozzle cell burners, without degradation of boiler performance or life; acquire and evaluate emission and boiler performance data before and after the retrofit to determine NOx reduction and im… more
Date: May 24, 1991
Item Type: Refine your search to only Report
open access

Fundamental studies of catalytic processing of synthetic liquids. Quarterly progress report, April 1, 1991--June 30, 1991

Description: This project revolves around understanding the fundamental processes involved in the catalytic removal of harmful oxygenated organics present in coal liquids. We are modelling the complex type of sulfided Mo catalyst proposed for these reactions with simple single crystal surfaces. These display a controlled range and number of reaction sites and can be extensively characterized by surface science techniques. We then investigate the reaction pathways for representative simple oxygenates upon th… more
Date: June 24, 1991
Creator: Watson, P. R.
Item Type: Refine your search to only Report
open access

High speed data transmission for the SSC solenoidal detector

Description: High speed data transmission using fiber optics for the Superconducting Super Collider solenoidal detector has been studied. The solenoidal detector system will consist of nine subsystems involving more than a total 10{sup 7} channels of readout electronics. Consequently, a new high performance data acquisition system, incorporating high-speed optical fiber networks, will be required to process this large quantity of data. 15 refs., 3 figs., 1 tab.
Date: April 24, 1991
Creator: Leskovar, B.
Item Type: Refine your search to only Article
open access

Japan's Prime Minister: Selection Process, 1991 Candidates, and Implications for the United States

Description: Prime Minister Toshiki Kaifu's concurrent two-year term as president of the Liberal Democratic party (LDP) and Prime Minister of Japan expires at the end of October 1991. The May 1991 death of Shintaro Abe, the front runner to replace him, opened the field to nearly a dozen candidates. These include Kaifu for another term, senior LDP faction leaders Kiichi Miyazawa, Michio Watanabe, and Hiroshi Mitsuzuka, former Prime Minister Noboru Takeshita, and several others. A clear favorite from this gro… more
Date: September 24, 1991
Creator: Young, Jeffrey D
Item Type: Refine your search to only Report
open access

Optical and environmentally protective coatings for potassium dihydrogen phosphate (KDP) harmonic converter crystals

Description: Potassium dihydrogen phosphate (KDP) crystals have been used as harmonic converters on the Nova laser at LLNL for over six years. All crystals were coated with a single layer, quarterwave AR coating of porous silica with a refractive index of 1.22. This was prepared by a sol-gel process and was applied from a colloidal suspension by spin coating at room temperature. A few crystals were also coated with a methyl silicone coating prior to the application of the AR coating for environmental protec… more
Date: June 24, 1991
Creator: Thomas, I. M.
Item Type: Refine your search to only Article
open access

Oxidation of Coal and Coal Pyrite Mechanisms and Influence on Surface Characteristics

Description: The objective of this research is to develop a mechanistic understanding of the oxidation of coal and coal pyrite, and to correlate the intrinsic physical and chemical properties of these minerals, along with changes resulting from oxidation, with those surface properties that influence the behavior in physical coal cleaning processes. The results will provide fundamental insight into oxidation, in terms of the bulk and surface chemistry, the microstructure, and the semiconductor properties of … more
Date: September 24, 1991
Creator: Doyle, F. M.
Item Type: Refine your search to only Report
open access

Pipe Cleaning Operating Procedures

Description: This cleaning procedure outlines the steps involved in cleaning the high purity argon lines associated with the DO calorimeters. The procedure is broken down into 7 cycles: system setup, initial flush, wash, first rinse, second rinse, final rinse and drying. The system setup involves preparing the pump cart, line to be cleaned, distilled water, and interconnecting hoses and fittings. The initial flush is an off-line flush of the pump cart and its plumbing in order to preclude contaminating the … more
Date: January 24, 1991
Creator: Clark, D. & Wu, J.
Item Type: Refine your search to only Report
open access

Pulsed power supply for three APS septum magnets

Description: Three septum magnets will be operated at a repetition-rate of 2 Hz. Two of the septum magnets are identical and operate at the same values; these are the synchrotron extraction and the storage ring injection magnets. They are transformer septum magnets, with a primary inductance of 23 {mu}H and resistance of 6.3 m{Omega}, and must be pulsed at a 2 Hz rate to extract beam from the synchrotron and inject beam into the storage ring at 7.7 GeV. The third septum magnet is used to inject electrons in… more
Date: March 24, 1991
Creator: McGhee, D. G.
Item Type: Refine your search to only Report
open access

Scale effects in sliding friction: An experimental study

Description: Solid friction is considered by some to be a fundamental property of two contacting materials, while others consider it to be a property of the larger tribosystem in which the materials are contained. A set of sliding friction experiments were designed to investigate the hypothesis that the unlubricated sliding friction between two materials is indeed a tribosystems-related property and that the relative influence of the materials properties or those of the machine on friction varies from one s… more
Date: July 24, 1991
Creator: Blau, P.J.
Item Type: Refine your search to only Article
open access

SPH (smoothed particle hydrodynamics) simulations of hypervelocity impacts

Description: The smoothed particle hydrodynamics (SPH) method has been used to simulate several cases of hypervelocity impact in an exploratory study to determine the suitability of the method for such problems. The calculations compare favorably with experimental results and with other numerical simulations. We discuss the requirements that must be satisfied for SPH to produce accurate simulations of such problems. 18 refs., 9 figs.
Date: January 24, 1991
Creator: Cloutman, L.D.
Item Type: Refine your search to only Report
open access

Theoretical studies on the electronic structure and properties of complex ceramic crystals and glasses

Description: This progress report summarizes the accomplishment of the DOE-support research program at the University of Missouri-Kansas City for the period July 1, 1991--June 30, 1992. This is the second year of a three-year renewal. The major accomplishments for the year are: (a) Initiation of fundamental studies on the electronic properties of C{sub 60} and related crystals; (b) study of electronic structures and optical properties of several important ceramic crystals, especially on AlN, SiO{sub 2} and … more
Date: January 24, 1991
Creator: Ching, Wai-Yim.
Item Type: Refine your search to only Report
open access

Theoretical studies on the electronic structure and properties of complex ceramic crystals and glasses. Annual progress report, July 1, 1991--June 30, 1992

Description: This progress report summarizes the accomplishment of the DOE-support research program at the University of Missouri-Kansas City for the period July 1, 1991--June 30, 1992. This is the second year of a three-year renewal. The major accomplishments for the year are: (a) Initiation of fundamental studies on the electronic properties of C{sub 60} and related crystals; (b) study of electronic structures and optical properties of several important ceramic crystals, especially on AlN, SiO{sub 2} and … more
Date: January 24, 1991
Creator: Ching, Wai-Yim
Item Type: Refine your search to only Report
open access

Theory-based transport simulations of TFTR L-mode temperature profiles

Description: The temperature profiles from a selection of TFTR L-mode discharges are simulated with the 1-1/2-D BALDUR transport code using a combination of theoretically derived transport models, called the Multi-Mode Model. The present version of the Multi-Mode Model consists of effective thermal diffusivities resulting from trapped electron modes and ion temperature gradient ({eta}{sub i}) modes, which dominate in the core of the plasma, together with resistive ballooning modes, which dominate in the per… more
Date: October 24, 1991
Creator: Bateman, G.
Item Type: Refine your search to only Report
open access

Winter Fuels Report: Week Ending October 18, 1991. [Contains Glossary]

Description: This report is intended to provide concise, timely information to the industry, the press, policymakers, consumers, analysts, and State and local governments on the following topics: distillate fuel oil net production, imports and stocks for all Petroleum Administration for Defense Districts (PADD) and product supplied on a US level; propane net production, imports and stocks for PADD's, 1, 2, and 3; natural gas supply and disposition and underground storage for the United States and consumptio… more
Date: October 24, 1991
Item Type: Refine your search to only Report
Back to Top of Screen