UNT Libraries Government Documents Department - 58 Matching Results

Search Results

Results: 1 - 24 next
open access

Health and safety guide for inorganic compounds and metals used in the fabrication of superconductive alloys

Description: This health and safety guide was written to satisfy two objectives: to summarize the toxicity of metals and alloys used in superconductivity for the benefit of those who work with these materials, and to summarize and describes the basic principles of a highly technical field from a health and safety point-of-view for the benefit of health professionals. The guide begins with a profile of the superconductivity industry, including a list of current and potential applications, a literature review… more
Date: April 25, 1990
Creator: Arnold, S. D. & Talley, G. M.
Item Type: Refine your search to only Article
open access

Status of the Relativistic Heavy Ion Collider

Description: Accelerator Physics issues, such as the dynamical aperture, the beam lifetime and the current--intensity limitation are carefully studied for the Relativistic Heavy Ion Collider at Brookhaven National Laboratory. The single layer superconducting magnets, of 8 cm coil inner diameter, satisfying the beam stability requirements have also been successfully tested. The proposal has generated wide spread interest in the particle and nuclear physics. 1 ref., 4 figs., 3 tabs.
Date: April 25, 1990
Creator: Lee, S. Y.
Item Type: Refine your search to only Article
open access

Physics possibilities at LHC/SSC

Description: This document reviews some recent work on physics simulations for SSC/LHC. Included are reviews of some of the recent developments in physics simulations for the SSC/LHC and comments upon the requirements that are placed upon detectors by the need to extract specific physics signatures. The material in the various EOI/LOI documents submitted to the SCC Laboratory and the work done at the Aachen LHC workshop are discussed. In the following discussion 1 SSC (LHC) year corresponds to an integrated… more
Date: April 25, 1991
Creator: Hinchliffe, I.
Item Type: Refine your search to only Article
open access

Transition Crossing Improvements

Description: During the accelerator studies period of 12/90-1/91 efforts were made to improve the efficiency of crossing transition in the Accumulator. E760 wishes to measure the product of the branching ratios for {bar p}p {yields} {eta}{sub c} {yields} {gamma}{gamma} and the mass and width of the {eta}{sub c}. Since resonance production of the {eta}{sub c} requires a beam momentum of 3.67 Gev/c which is below the Accumulator design transition momentum, and since the above process is rare, it is required t… more
Date: April 25, 1991
Creator: Church, M.
Item Type: Refine your search to only Report
open access

IGR NO[sub x]/SO[sub x] control technology

Description: The technical work during this reporting term has principally involved the continued development, optimization and improvement of freezing drying techniques for solid ceramic oxide electrolyte powder preparation, preliminary optimization of the calcining of the ceramic electrolyte freeze dried powders to allow for optimum processing to the IGR composite, and determining (initial) electrochemical properties of the stabilized ceramic solid electrolyte at a variety of temperatures in air.
Date: April 25, 1993
Item Type: Refine your search to only Report
open access

IGR NO{sub x}/SO{sub x} control technology. Second technical progress report, January 1--March 31, 1993

Description: The technical work during this reporting term has principally involved the continued development, optimization and improvement of freezing drying techniques for solid ceramic oxide electrolyte powder preparation, preliminary optimization of the calcining of the ceramic electrolyte freeze dried powders to allow for optimum processing to the IGR composite, and determining (initial) electrochemical properties of the stabilized ceramic solid electrolyte at a variety of temperatures in air.
Date: April 25, 1993
Item Type: Refine your search to only Report
open access

Additional critical experiments for computer code validation base

Description: This paper describes the validation, in accordance with ANSI/ANS-8.1-1983(R1988), of KENO V.a using the 27-group ENDF/B-IV cross section library for some neutronic systems containing highly-enriched uranium, carbon, and hydrogen. This constituent combination is present in many packaging applications for the safe transportation of fissile and fissionable materials. The validation has been performed for two separate computational platforms: an IBM 3090 mainframe and an HP 9000 Series 700 workstat… more
Date: April 25, 1994
Creator: Elliott, E. P.; Tollefson, D. A. & Vornehm, R. G.
Item Type: Refine your search to only Report
open access

CaWingz user`s guide

Description: This document assumes that you have read and understood the Wingz user`s manuals. CaWingz is an external Wingz program which, when combined with a set of script files, provides easy-to-use EPICS channel access interface functions for Wingz users. The external function run allows Wingz user to invoke any Unix processor within caWingz. Few additional functions for accessing static database field and monitoring of value change event is available for EPICS users after release 3.11. The functions, s… more
Date: April 25, 1994
Creator: Cha, Ben-chin
Item Type: Refine your search to only Report
open access

Characterization of oil and gas waste disposal practices and assessment of treatment costs. Technical progress report, January 1, 1994--March 31, 1994

Description: This report covers work completed during the sixth quarter for the project. The project consists of three tasks: the first relates to developing a database of waste volumes and disposal methods used by the industry; the second and third tasks are aimed at investigating technologies that could be used for the treatment of produced waters and developing cost estimates for those technologies. The remainder of this report describes progress related to the three tasks in the project. Overall, constr… more
Date: April 25, 1994
Creator: Bedient, P. B.
Item Type: Refine your search to only Report
open access

Diosmacycloalkanes as models for the formation of hydrocarbons from surface methylenes. Final report

Description: Assignment of the vibrational modes Of Os{sub 2}(CO){sub 8}(CHCH{sub 3}) and Os(CO){sub 4}(C{sub 2}H{sub 4)} has given fingerprint vibrational spectra for the following species when chemisorbed on metal catalyst surfaces: ethylidene and ethylene bound in a metallacyclopropane mode. The formation and fragmentation of diosmacyclobutanes have been shown to involve slippage of the outgoing olefin onto a single osmium, and associative exchange of the olefin from that site. The incorporation of vinyl… more
Date: April 25, 1994
Creator: Norton, J. R.
Item Type: Refine your search to only Report
open access

Integrated Computer-Enhanced Remote Viewing System. Quarterly report No. 6, January 1994--March 1994

Description: The Interactive, Computer-Enhanced, Remote Viewing System (ICERVS) is a system designed to provide a reliable geometric description of a robotic task space in a fashion that enables robotic remediation to be carried out more efficiently and economically that with present systems. The key elements are a faithful way to store empirical data and a friendly user interface that provides an operator with timely access to all that is known about a scene. ICERVS will help an operator to analyze a scene… more
Date: April 25, 1994
Item Type: Refine your search to only Report
open access

Study of the effect of the space charge using SYNCH

Description: The interparticle repulsion, or space charge, limits the density of charged-particle beams that can be obtained in storage rings. In this report the authors study the effect of increasing the space charge, with an exact computation of the lattice parameters using SYNCH. Systematically increasing the ion density by decreasing the emittance with cooling techniques lowers the betatron tune, until the lower half-integral stopband resonance -- also induced by the beam -- is reached. In the simple mo… more
Date: April 25, 1994
Creator: Haffmans, A. F.; Maletic, D. & Ruggiero, A. G.
Item Type: Refine your search to only Report
open access

ABCASH plotting program users guide

Description: The Automated Bar Coding of Air Samples at Hanford (ABCASH) system provides an integrated data collection, sample tracking, and data reporting system for radioactive particulate air filter samples. The ABCASH plotting program provides a graphical trend report for ABCASH of the performance of air sample results. This document provides an operational guide for using the program. Based on sample location identifier and date range, a trend chart of the available data is generated. The trend chart s… more
Date: April 25, 1995
Creator: Troyer, G. L.
Item Type: Refine your search to only Report
open access

Choppertron II

Description: We present experimental results of a version of the Choppertron microwave generator designed to work with the high emittance beam of the Advanced Test Accelerator (ATA). Simulations showed that a 800-A, 120 {pi} cm-mrad beam (typical of ATA), could produce 800 MW of rf (11.4 GHz) power using two 12-cell, traveling-wave output structures. Funding contraints prevented final tuning of the modulator system and limited the experiment to 530 MW in narrow pulses. Over 400 MW were extracted from a sing… more
Date: April 25, 1995
Creator: Houck, T.L.; Westenskow, G.A.; Haimson, J. & Mecklenburg, B.
Item Type: Refine your search to only Article
open access

Development of beam position monitors for heavy ion recirculators

Description: Work is underway at the Lawrence Livermore National Laboratory to design and build a small-scale, heavy ion recirculating induction accelerator. An essential part of this design work is the development of small nonintercepting diagnostics to measure beam current and position. This paper describes some of this work, with particular emphasis on the development of a small capacitive probe beam position monitor to resolve beam position to the 100 {mu}m level in a 6 cm diameter beam pipe. Initial me… more
Date: April 25, 1995
Creator: Deadrick, F. J.; Barnard, J. J.; Fessenden, T. J.; Meridith, J. W. & Rintamaki, J.
Item Type: Refine your search to only Article
open access

Dysregulation of temperature and liver cytokine gene expression in immunodeficient wasted mice

Description: Wasted mice bear the spontaneous autosomal recessive mutation wst/wst; this genotype is associated with weight loss beginning at 21 days of age, neurologic dysfunction, immunodeficiency at mucosal sites, and increased sensitivity to the killing effects of ionizing radiation. The pathology underlying the disease symptoms is unknown. Experiments reported here were designed to examine thermoregulation and liver expression of specific cytokines in wasted mice and in littermate and parental controls… more
Date: April 25, 1995
Creator: Libertin, C. R.; Ling-Indeck, L.; Weaver, P.; Chang-Liu, Chin-Mei; Strezoska, V.; Heckert, B. et al.
Item Type: Refine your search to only Report
open access

Evaluation of the {sup 4}I{sub 11/2} terminal level lifetime for several neodymium-doped laser crystals and glasses

Description: All models of lasing action require knowledge of the physical parameters involved, of which many can be measured or estimated. The value of the terminal level lifetime is an important parameter in modeling many high power laser systems since the terminal level lifetime can have a substantial impact on the extraction efficiency of the system. However, the values of the terminal level lifetimes for a number of important laser materials such as ND:YAG and ND:YLF are not well known. The terminal le… more
Date: April 25, 1995
Creator: Bibeau, C.
Item Type: Refine your search to only Thesis or Dissertation
open access

A MEMS-based miniature DNA analysis system

Description: We detail the design and development of a miniature thermal cycling instrument for performing the polymerase chain reaction (PCR) that uses microfabricated, silicon-based reaction chambers. The MEMS-based, battery-operated instrument shows significant improvements over commercial thermal cycling instrumentation. Several different biological systems have been amplified and verified with the miniature PCR instrument including the Human Immunodeficiency Virus; both cloned and genomic DNA templates… more
Date: April 25, 1995
Creator: Northrup, M.A.; Gonzalez, C. & Hadley, D.
Item Type: Refine your search to only Article
open access

Replacemernt of thermally produced calcined clay with chemically structured pigments and methods for the same, quarterly report, January 1, 1995-April 1, 1995

Description: The business objective is to manufacture an economically viable chemically structured clay to replace thermally structured calcined clay. The technology will provide substantial benefit in paper coating. The structured pigment containing 90% clay and 10% TiO2 vs the loose blend of these materials as a filler for paper was evaluated. A plan to improve the permanence of the structured pigment using dual functional dispersed pigments is in place. The cationic dispersant for TiO2 will also be a bin… more
Date: April 25, 1995
Creator: Whalen-Shaw, M.
Item Type: Refine your search to only Report
open access

Robotic weld overlay coatings for erosion control. Quarterly technical progress report, January 1995--March 1995

Description: Research is presently being conducted to develop a criteria for selecting weld overlay coatings for erosion mitigation in Circulated Fluidized Beds. During the last two quarters tensile tests were performed at 400{degrees}C for the Ultimet, Inconel-625, 316L SS, C-22, and Stellite-6 wrought alloys. Also, the erosion tests for these materials at 400{degrees}C were completed. The results of mechanical and erosion tests are used to correlate mechanical properties of selected wrought alloys such as… more
Date: April 25, 1995
Creator: Levin, B. F.; Dupont, J. N. & Marder, A. R.
Item Type: Refine your search to only Report
open access

Strategy for resolution of the Flammable Gas Safety Issue

Description: The purpose of this document is to provide the general strategy for resolution of the flammable gas safety issue; it is not a detailed description of program activities. budgets and schedules. Details of the program activities have been issued (Johnson and Sherwood, 1994) and the information pertaining to budgets is provided in the FY 1995-1997 Multi-Year Work Plan for Tank Waste Remediation System (TWRS) (Program Element 1.1.1.2.02.). The key element in this strategy is to provide an understan… more
Date: April 25, 1995
Creator: Johnson, G. D.
Item Type: Refine your search to only Report
open access

Transport of a Partially-Neutralized Ion Beam in a Heavy-Ion Fusion Reactor Chamber

Description: In a heavy-ion driven, inertial confinement fusion power plant, a space-charge dominated beam of heavy ions must be transported through a reactor chamber and focused on a 2-3 mm spot at the target. The spot size at the target is determined by the beam emittance and space charge, plus chromatic aberrations in the focusing lens system and errors in aiming the beam. The gain of the ICF capsule depends on the focal spot size. We are investigating low density, nearly-ballistic transport using an ele… more
Date: April 25, 1995
Creator: Callahan, D. A. & Langdon, A. B.
Item Type: Refine your search to only Article
Back to Top of Screen