UNT Libraries Government Documents Department - 33 Matching Results

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D-0 North End Cap Calorimeter Cold Test Results

Description: The North endcap calorimeter vessel was recieved on July 1, 1990. A cooldown of the pressure vessel with liquid nitrogen was performed on July 10-11 to check the vessel's integrity. With the pressure vessel cold, the insulating vacuum was monitored for leaks. Through out the testing, the insulating vacuum remained good and the vessel passed the test. The cold test was carried out per the procedures of D-Zero engineering note 3740.220-EN-250. The test was very similar to the cold test performed … more
Date: August 2, 1990
Creator: Michael, J.
Item Type: Refine your search to only Report
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Application of MeV ions to the analysis and modification of high temperature superconducting materials

Description: In analyzing the composition of high {Tc} superconducting materials using heavy-ion RBS we discovered that the electronic excitation of the target caused mixing to occur. To study this effect we made superlattice structures of alternating thin layers of Ba{sub 2}YCu{sub 3}O{sub 6+x} and BaF{sub 2}. At this point in the process some mixing has occurred, but the individual layers are still visible. However, as the bombardment continued the layers were mixed together. It may well be that one can u… more
Date: November 2, 1990
Creator: Tombrello, T.A.
Item Type: Refine your search to only Report
open access

Damage measurements on optical materials for use in high-peak-power lasers

Description: Recently, we have expanded our efforts to develop state-of-the-art optical components for use in large-scale, high-peak-power, solid state lasers. Laser-induced damage to many of these components sets critical constraints on construction costs and limits the peak powers attainable in current and proposed devices. Increasing the damage threshold whenever possible by improving materials fabrication technology is therefore the ultimate goal of our work. Our research has resulted in an extensive da… more
Date: May 2, 1990
Creator: Rainer, F.; Brusasco, R. M.; Campbell, J. H.; DeMarco, F. P.; Gonzales, R. P.; Kozlowski, M. R. et al.
Item Type: Refine your search to only Article
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Development of a numerical computer code and circuit element models for simulation of firing systems

Description: Numerical simulation of firing systems requires both the appropriate circuit analysis framework and the special element models required by the application. We have modified the SPICE circuit analysis code (version 2G.6), developed originally at the Electronic Research Laboratory of the University of California, Berkeley, to allow it to be used on MSDOS-based, personal computers and to give it two additional circuit elements needed by firing systems--fuses and saturating inductances. An interact… more
Date: July 2, 1990
Creator: Carpenter, K.H. (Kansas State Univ., Manhattan, KS (USA). Dept. of Electrical and Computer Engineering)
Item Type: Refine your search to only Report
open access

Energy conservation standards for new federal residential buildings: A decision analysis study using relative value discounting

Description: This report presents a reassessment of the proposed standard for energy conservation in new federal residential buildings. The analysis uses the data presented in the report, Economic Analysis: In Support of Interim Energy Conservation Standards for New Federal Residential Buildings (June 1988)-to be referred to as the EASIECS report. The reassessment differs from that report in several respects. In modeling factual information, it uses more recent forecasts of future energy prices and it uses … more
Date: July 2, 1990
Creator: Harvey, C. (Houston Univ., TX (USA). Coll. of Business Administration); Merkhofer, M.M. & Hamm, G.L. (Applied Decision Analysis, Inc., Menlo Park, CA (USA))
Item Type: Refine your search to only Report
open access

Environmental compliance assessment findings for Weldon Spring Site Remedial Action Program

Description: This report presents the results of an environmental assessment conducted at Weldon Spring Site Remedial Action Project (WSSRAP) in St. Charles County, Missouri, in accordance with the Formerly Utilized Sites Remedial Action Program (FUSRAP) Environmental Compliance Assessment Checklists. The purpose of this assessment was to evaluate the compliance of the site with applicable federal and Missouri environment regulations. Assessments activities included the following: review of site records, re… more
Date: March 2, 1990
Creator: Sigmon, C. F. & Levine, M. B.
Item Type: Refine your search to only Report
open access

Exploratory coprocessing research

Description: The objectives of this project are to: (1) study the scope of hydrothermal pretreatment of coal on subsequent conversion, (2) identify and study the chemical or physical causes of this effect, and (3) attempt to elucidate the chemistry responsible for any coal-resid synergisms. This project is divided into three tasks. This quarter we concentrated on Tasks 1 and 2. Task 1: Scope of aqueous pretreatment. Task 2: Chemistry of Pretreatment. Also during this quarter we investigated other means of p… more
Date: November 2, 1990
Creator: Hirschon, A. S.; Tse, D. S.; Malhotra, R.; McMillen, D. F. & Ross, D. S.
Item Type: Refine your search to only Report
open access

Extraction, separation and analysis of high sulfur coal

Description: In summary, significant bond cleavage was found only for thiophenol under the supercritical conditions studied. Less than 5% yield was found for the observed reaction products for all the other organosulfur compounds. The hydrogen sulfur bond in thiophenol is clearly the weakest of those studied and therefore it is the easiest to rupture. Also a general trend was observed the solvolysis reaction products such as ethylthiobenzene were the products initially formed at lower temperatures. But with… more
Date: April 2, 1990
Creator: Olesik, S. V.
Item Type: Refine your search to only Report
open access

Extraction, separation and analysis of high sulfur coal. Technical progress report No. 11, January 1, 1990--March 21, 1990

Description: In summary, significant bond cleavage was found only for thiophenol under the supercritical conditions studied. Less than 5% yield was found for the observed reaction products for all the other organosulfur compounds. The hydrogen sulfur bond in thiophenol is clearly the weakest of those studied and therefore it is the easiest to rupture. Also a general trend was observed the solvolysis reaction products such as ethylthiobenzene were the products initially formed at lower temperatures. But with… more
Date: April 2, 1990
Creator: Olesik, S. V.
Item Type: Refine your search to only Report
open access

(High T sub c superconductivity)

Description: A detailed description of the research conducted at the University of Paris at Orsay and the International Meeting on High-{Tc} Superconductivity, organized by the traveler, H. Schultz from Orsay, and D. M. Newns from IBM, is presented. Particular emphasis is placed on the collaboration with F. Perrot of the Centre Europeen de Calcul Atomique et Moleculaire. In addition, descriptions of the different scientific interactions and information obtained and implications of this scientific exchange o… more
Date: October 2, 1990
Creator: Rasolt, M.
Item Type: Refine your search to only Report
open access

Interagency Geothermal Coordinating Council Annual Report for Fiscal Year 1989

Description: The U.S. Interagency Geothermal Coordinating Council was a multi-agency group charged with identifying and reducing barriers to geothermal energy development in the U.S. Many of the issues covered related to regulations for and progress in the leasing of Federal lands in the West for power development. The IGCC reports are important sources of historical information. Table 1 lists significant events in the history of use of geothermal energy in the U.S., starting in1884. That is useful for trac… more
Date: January 2, 1990
Item Type: Refine your search to only Report
open access

Limits on the masses of supersymmetric particles from 1. 8 TeV p p collisions

Description: Preliminary analysis of p{bar p} collision events at {radical}s = 1.8 TeV using events with large missing transverse energy and on two (four) jets in a minimal SUSY model places new limits on the masses of squarks (gluinos). The data sample (4 pb{sup {minus}1}) was taken in 1988--89 and is approximately 160 times as large as the data sample from our earlier 1987 run (25 nb{sup {minus}1}). 5 refs., 1 fig.
Date: October 2, 1990
Creator: Beretvas, A.
Item Type: Refine your search to only Article
open access

The LLNL (Lawrence Livermore National Laboratory) ICF (Inertial Confinement Fusion) Program: Progress toward ignition in the Laboratory

Description: The Inertial Confinement Fusion (ICF) Program at the Lawrence Livermore National Laboratory (LLNL) has made substantial progress in target physics, target diagnostics, and laser science and technology. In each area, progress required the development of experimental techniques and computational modeling. The objectives of the target physics experiments in the Nova laser facility are to address and understand critical physics issues that determine the conditions required to achieve ignition and g… more
Date: October 2, 1990
Creator: Storm, E.; Batha, S. H.; Bernat, T. P.; Bibeau, C.; Cable, M. D.; Caird, J. A. et al.
Item Type: Refine your search to only Article
open access

Marker evaluation of human breast and bladder cancers

Description: We are investigating multiple markers in human breast and bladder cancers. Our aim is to identify markers that are clinically relevant and that contribute to our understanding of the disease process in individual patients. Good markers accurately assess the malignant potential of a cancer in an individual patient. Thus, they help identify those cancers that will recur, and they may be used to predict more accurately time to recurrence, response to treatment, and overall prognosis. Therapy and p… more
Date: November 2, 1990
Creator: Mayall, B. H.; Carroll, P. R.; Chen, Ling-Chun; Cohen, M. B.; Goodson III, W. H.; Smith, H. S. et al.
Item Type: Refine your search to only Article
open access

MH Test Filler Force Limitations

Description: The OH modules for the DO end calorimeter are being tested by supporting a load to simulate the MH, IH, and EM modules. This test structure, the MH filler, is inserted into the previously assembled OH modules, and then loaded with hydraulic jacks. The maximum test load applied by the jacks is 78,600 lb, which is via the two downstream jacks at 130% of the nominal load. Bill Cooper's memo of 9/10/90 is include as appendix C. This note presents calculations for the AISC maximum allowable stresses… more
Date: October 2, 1990
Creator: Primdahl, K. A.
Item Type: Refine your search to only Report
open access

A microstructural study of creep and thermal fatigue deformation in 60Sn-40Pb solder joints

Description: Thermal fatigue failures of solder joints in electronic devices often arise from cyclic shear strains imposed by the mismatched thermal expansion coefficients of the materials that bind the joint as temperature changes are encountered. Increased solder joint reliability demands a fundamental understanding of the metallurigical mechanisms that control the fatigue to design accurate accelerated probative tests and new, more fatigue resistant solder alloys. The high temperatures and slow strain ra… more
Date: June 2, 1990
Creator: Tribula, D.
Item Type: Refine your search to only Report
open access

NMR clinical imaging and spectroscopy: Its impact on nuclear medicine

Description: This is a collection of four papers describing aspects of past and future use of nuclear magnetic resonance as a clinical diagnostic tool. The four papers are entitled (1) What Does NMR Offer that Nuclear Medicine Does Not by Jerry W. Froelich, (2) Oncological Imaging: Now, Future and Impact Jerry W. Froelich, (3) Magnetic Resonance Spectroscopy/Spectroscopic Imaging and Nuclear Medicine: Past, Present and Future by H. Cecil Charles, and (4) MR Cardiology: Now, Future and Impact by Robert J. He… more
Date: February 2, 1990
Item Type: Refine your search to only Report
open access

NMR clinical imaging and spectroscopy: Its impact on nuclear medicine

Description: This is a collection of four papers describing aspects of past and future use of nuclear magnetic resonance as a clinical diagnostic tool. The four papers are entitled (1) What Does NMR Offer that Nuclear Medicine Does Not? by Jerry W. Froelich, (2) Oncological Imaging: Now, Future and Impact Jerry W. Froelich, (3) Magnetic Resonance Spectroscopy/Spectroscopic Imaging and Nuclear Medicine: Past, Present and Future by H. Cecil Charles, and (4) MR Cardiology: Now, Future and Impact by Robert J. H… more
Date: February 2, 1990
Item Type: Refine your search to only Report
open access

Nucleosynthesis in a baryon-inhomogeneous universe with coupled baryon diffusion

Description: Detailed calculations of big-bang nucleosynthesis in baryon-inhomogeneous universes show that {Omega}{sub b} can be considerably larger than its limit from standard big-bang nucleosynthesis. Such results require that late-time hydrodynamic effects deplete overproduction of {sup 7}Li and that the QCD surface tension be near the cube of the QCD coexistence temperature for fluctuations of the correct length scales to arise. 15 refs., 1 fig.
Date: August 2, 1990
Creator: Meyer, B.S.
Item Type: Refine your search to only Article
open access

ONT High Gain Initiative WRAP (Wide Area Rapid Acoustic Prediction) computational performance section

Description: LLNL received a contract during March 1990 to perform three tasks for ONT. This letter report covers Task I which concerned a supercomputing effort in a program termed the High Gain Initiative, which is an anti-submarine (ASW) project that requires substantial computational and signal processing expertise. The core of the computational aspects at the present time is a code called WRAP (Wide Area Rapid Acoustic Prediction). LLNL's objective was to study the WRAP model and determine the feasibili… more
Date: October 2, 1990
Creator: McGraw, J. R.; Hedstrom, G. & De Groot, T.
Item Type: Refine your search to only Report
open access

Potential Health Risks From Postulated Accidents Involving the Pu-238 RTG (Radioisotope Thermoelectric Generator) on the Ulysses Solar Exploration Mission

Description: Potential radiation impacts from launch of the Ulysses solar exploration experiment were evaluated using eight postulated accident scenarios. Lifetime individual dose estimates rarely exceeded 1 mrem. Most of the potential health effects would come from inhalation exposures immediately after an accident, rather than from ingestion of contaminated food or water, or from inhalation of resuspended plutonium from contaminated ground. For local Florida accidents (that is, during the first minute aft… more
Date: November 2, 1990
Creator: Goldman, M. (California Univ., Davis, CA (USA)); Nelson, R.C. (EG and G Idaho, Inc., Idaho Falls, ID (USA)); Bollinger, L. (Air Force Inspection and Safety Center, Kirtland AFB, NM (USA)); Hoover, M.D. (Lovelace Biomedical and Environmental Research Inst., Albuquerque, NM (USA). Inhalation Toxicology Research Inst.); Templeton, W. (Pacific Northwest Lab., Richland, WA (USA)) & Anspaugh, L. (Lawren
Item Type: Refine your search to only Article
open access

Quarterly coal report, April--June 1990

Description: The Quarterly Coal Report provides comprehensive information about US coal production, exports, imports, receipts, consumption, and stocks to a wide audience, including Congress, Federal and State agencies, the coal industry, and the general public. This issue presents detailed quarterly data for April 1990 through June 1990, aggregated quarterly historical data for 1982 through the second quarter of 1990, and aggregated annual historical data for 1960 through 1989 and projected data for select… more
Date: November 2, 1990
Item Type: Refine your search to only Report
open access

Quotas for CFE Treaty declared site inspections for baseline validation

Description: The CFE Treaty will provide for limits on NATO and WTO forces, particularly tanks, armored personnel carriers, artillery, and helicopters. In addition to the overall limits on TLEs in the ATTU zone, there are expected to be secondary limits on single country forces, limits on forces based in foreign nations, and geographic sublimits. To help validate WTO declarations of baseline forces, the treaty may provide for on-site inspections by NATO of declared WTO basing facilities. One important unres… more
Date: October 2, 1990
Creator: Strait, R.S. & Sicherman, A.
Item Type: Refine your search to only Report
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