Serial/Series Title
ARM Facilities Newsletter
7
Winter Fuels Report
4
Fiscal Year 1997
3
Fiscal Year 2000
3
Role of Structure in Ion Movement of Glasses Progress Report
2
Science & Technology Review
2
Differential Soil Impedance Obstacle Detection Quarterly Report
1
Establishment of an Industry-Driven Consortium Focused on Improving the Production Performance of Domestic Stripper Wells Quarterly Report
1
Fiscal Year 1996
1
Fiscal Year 1998
1
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Interim report on the creepdown of Zircaloy fuel cladding
This report describes the creepdown phenomenon in Zircaloy fuel cladding and the methods by which it will be measured and analyzed. Instrumentation for monitoring radial deformation in the cladding is described in detail--in terms of theory, design, and stability. The programs that control the microcomputer are listed, both to document the level of sophistication of the instrumentation and to indicate the flexibility of the test equipment.
Date:
March 3, 1977
Creator:
Hobson, D. O. & Dodd, C. V.
Object Type:
Report
System:
The UNT Digital Library
Tandem mirror rate code and cyclic purging of alphas in tandem reactors
A set of coupled rate equations for densities and energies in a tandem mirror machine have been incorporated into a fast-running code. The code is suitable for parameter-searching and studying time-dependent processes. The code has been used to study buildup of thermalized alphas in a tandem mirror reactor, and cyclic schemes for limiting the alpha population. The principal findings are: Q/sub av/ is drastically reduced as alphas build up from a steady-state in which alphas were artificially eliminated; running in a pulsed mode to clean out alphas improves the time-averaged Q significantly, but not enough; elimination of 80% of the alphas by nonadiabatic loss and running in pulsed mode allows a reasonable time-averaged Q.
Date:
August 3, 1977
Creator:
Cohen, R. H.
Object Type:
Report
System:
The UNT Digital Library
Present status and future prospects for nonelectrical uses of geothermal resources
This report, which is part of a study initiated by the NATO Committee on the Challenges of Modern Society (CCMS), describes the current status of nonelectrical uses of geothermal resources. Such resources are defined as geothermal fluids between the temperatures of 50 and 160/sup 0/C. Current and potential uses of these resources including residential and commercial, agricultural and industrial applications are described. Also discussed are exploration and drilling; extraction and distribution; environmental impact; and economic and regulatory problems. Applications in a number of countries are described. Among the report's conclusions are: (1) Geothermal resources are widely distributed throughout the world. (2) The extraction of these resources presents no serious technical problems. (3) A wide variety of economically viable applications for these resources currently exists. (4) Current nonelectrical applications have a favorable economic structure compared with those of other energy sources. (5) Disposal of spent fluids has a significant ecological impact. Reinjection appears to be the most likely alternative. (6) The legal and institutional framework surrounding these applications needs both clarification and simplification.
Date:
October 3, 1975
Creator:
Howard, J. H. (ed.)
Object Type:
Report
System:
The UNT Digital Library
Search for the top quark from (e,[mu]) and (e,e) events in the D0 detector in p[bar p] collisions at [radical]s = 1. 8 TeV
We present results from searches for top quark production in p[bar p] collisions at the Tevatron collider based on an integrated luminosity of 7.5 pb[sup [minus]1] obtained during the 1992--1993 ran. The present results are confined to decay modes where both the top and anti-top quarks in the event decay semi-leptonically to the ee and e[mu] channels. A lower limit of 103 (99) GeV/c[sup 2] is obtained at 95% confidence level for the top quark mass from the absence of events consistent with standard model top quark decays with background subtraction (no background subtraction). We do however observe one event in the e[mu] channel which cannot be explained by the known backgrounds. While we make no claim that this event is due to top quark decay, it is not inconsistent with a top quark mass in the range 130--170 GeV/c[sup 2]
Date:
June 3, 1993
Creator:
Raja, R.
Object Type:
Article
System:
The UNT Digital Library
Power plant siting; an application of the nominal group process technique
The application of interactive group processes to the problem of facility siting is examined by this report. Much of the discussion is abstracted from experience gained in applying the Nominal Group Process Technique, an interactive group technique, to the identification and rating of factors important in siting nuclear power plants. Through this experience, interactive group process techniques are shown to facilitate the incorporation of the many diverse factors which play a role in siting. In direct contrast to mathematical optimization, commonly represented as the ultimate siting technique, the Nominal Group Process Technique described allows the incorporation of social, economic, and environmental factors and the quantification of the relative importance of these factors. The report concludes that the application of interactive group process techniques to planning and resource management will affect the consideration of social, economic, and environmental concerns and ultimately lead to more rational and credible siting decisions.
Date:
October 3, 1976
Creator:
Voelker, A. H.
Object Type:
Report
System:
The UNT Digital Library
Critique of the Dixy Lee Ray Report, "The Nation's energy future"
None
Date:
February 3, 1975
Creator:
Anderson, C. J.; Moulthrop, P. H.; Ramsey, W. J.; Rubin, B. & Werth, G. C.
Object Type:
Report
System:
The UNT Digital Library
Mark I 1/5-sale boiling water reactor pressure suppression experiment quick-look report
This report is intended as a ''quick-look'' report summarizing the experimental results obtained from pressure suppression experiment numbers 1.3.1, 1.4, 1.5, and 1.6 that were performed on the Lawrence Livermore Laboratory's 1/5-scale boiling water reactor (BWR) Mark I pressure suppression experimental facility on April 26, 1977. A brief description of the general nature of the tests and a summary of the actual tests that were performed are given.
Date:
June 3, 1977
Creator:
Lai, W. & Collins, E. K. (comps.)
Object Type:
Report
System:
The UNT Digital Library
Method for achieving complete neutralization of a high-energy charged particle beam
None
Date:
April 3, 1974
Creator:
Beal, J. W. & Neil, V. K.
Object Type:
Report
System:
The UNT Digital Library
AMPS automated message processing system, LER 76-101701A. [For preparing SACNET messages off line]
This report describes the operation and use of the LLL Automated Message Processing System (AMPS), which is used for off-line preparation of messages for SACNET (Secure Automatic Communications Network). The preparation of teletype messages before AMPS required typing on a teletype to create a paper tape in ASCII code compatible with SACNET. AMPS uses a MCS-80 microprocessor, CRT with keyboard, and a teletype to create the SACNET messages. Through processor control and CRT edit capabilities, through-put of the system was increased about 50 percent. 11 figures.
Date:
December 3, 1976
Creator:
Benge, W. & Spann, J.
Object Type:
Report
System:
The UNT Digital Library
Electrostatic bounce modes in mirror plasmas
Electrostatic bounce modes are standing waves that occur in a mirror plasma when the relative spread in electron bounce frequencies is small. The modes can be destabilized by an ion distribution with a peaked perpendicular energy, and experimental data suggest that this mechanism was the principal cause of instability in certain low-density mirror experiments. After a review of theoretical work on electrostatic waves in mirror plasmas, a general matrix eigenvalue equation for the wave potential is derived which accounts accurately for electron histories and which includes the ion response. A computer program for calculating the plasma eigenmodes and the associated threshold densities for instability and maximum growth rates is then described. The threshold densities for unstable bounce modes expected in the Baseball I and Baseball II devices are compared with experimental values. The good agreement between theoretical and experimental thresholds in Baseball II makes bounce modes the most likely cause of instabilities in that device. In Baseball I, the most unstable modes expected from the theory have threshold densities consistently below observed values. The discrepancy probably results from idealizations in the model that reduce wave damping.
Date:
March 3, 1977
Creator:
Sharp, W. M.
Object Type:
Report
System:
The UNT Digital Library
Understanding RAM and ODT operation in the MCS-8 microcomputer
A simple program is explained for those who are just beginning to work with computers in general and the MCS-8 Microcomputer in particular. The text is a guide to understanding some of the processes which occur when a program is written into random access memory (RAM) with the Octal Debug technique (ODT). 3 figures. (RWR)
Date:
June 3, 1974
Creator:
Jensen, C. W.
Object Type:
Report
System:
The UNT Digital Library
Preliminary interpretation of resistivity and seismic refraction data from the Salton Sea Geothermal Field
Seismic refraction and electrical resistivity surveys have been conducted in the Salton Sea Geothermal Field. The resistivity data are used to infer the boundaries of a reservoir of saline fluid. One lateral boundary closely coincides with a fault that was located by seismic refraction.
Date:
September 3, 1976
Creator:
Kasameyer, P. W.
Object Type:
Report
System:
The UNT Digital Library
Elementary introduction to finite difference equations
An elementary description is given of the basic vocabulary and concepts associated with finite difference modeling. The material discussed is biased toward the types of large computer programs used at the Lawrence Livermore Laboratory. Particular attention is focused on truncation error and how it can be affected by zoning patterns. The principle of convergence is discussed, and convergence as a tool for improving calculational accuracy and efficiency is emphasized.
Date:
May 3, 1976
Creator:
White, J. W.
Object Type:
Report
System:
The UNT Digital Library
Molecular studies of functional aspects of plant mitochondria
The goal of this research is to characterize the mechanism by which a protein encoded by mitochondrial genome of cms-T maize (URF13) interacts with a family of the compounds produced by certain fungi (T-toxins) to permeabilize biological membranes. The research carried out during the current funding period has focused on the structure of URF13, and the results support the validity of the three-helix model of URF13 and provide direct evidence for the oligomeric nature of at least some of the URF13 molecules in the membrane. In addition, the toxin binding studies have provided insight into the dynamic nature of the T-toxin:URF13 interaction and the extent to which Asp-39 is crucial to the interaction that leads to membrane pore formation. Additional knowledge of the structure of URF13 is needed if the nature of the interaction between URF13 and T-toxin to produce a hydrophilic pore within the membrane is to ultimately be understood.
Date:
March 3, 1992
Creator:
Siedow, J. N.
Object Type:
Report
System:
The UNT Digital Library
Summary progress report for fiscal year 1976 and the transition quarter describing technical assistance work for the Division of Systems Safety, U. S. Nuclear Regulatory Commission. [HTGR]
The report reviews briefly the HTGR core analytical methods that were developed during the course of the program. The features of these analytical methods are compared with methods used to perform similar analyses, and examples of the use of these methods are cited. Included are discussions of HEATUP (a computer code for the thermal analysis of an LOFC accident in an HTGR), HEATING 5 (an IBM 360 heat-conduction code), CCCM (a coupled conduction-convection model for core thermal analysis), FLODIS (a computer model to determine the flow distribution and thermal response of the Vrain reactor), and HEXEREI 2 code development. (DG)
Date:
January 3, 1977
Creator:
Sanders, J. P.
Object Type:
Report
System:
The UNT Digital Library
AVMAC: an assembly language for the Aydin model 5214A Refresh Display Generator
An instruction set and program listing for AVMAC, an assembly language for the Aydin 5214A Refresh Display Generator, are presented. AVMAC runs on a Varian V-70 series computer. The mnemonics and appropriate parameter list, for each Aydin operation, needed to generate the Aydin machine code are described. 3 tables.
Date:
March 3, 1977
Creator:
Werner, R. E.
Object Type:
Report
System:
The UNT Digital Library
Final report on the exploratory experiment on the investigation of high multiplicity gamma-ray events. [Cross sections; rapidity distributions]
An experiment investigating high multiplicity gamma-ray events in a region covering 18 percent of 4..pi.. around 90/sup 0/ in the center of mass was performed at the CERN ISR by sharing the detector of the CERN-Columbia-Rockefeller group. Information on the dependence of the cross section on gamma-ray multiplicity as well as the dependence of the average gamma-ray and charge multiplicities on the center-of-mass energy was obtained. Studies were made of correlations between the number of gamma-rays and charged particles, as well as between the total number of gamma-rays plus charged particles and the total measured energy per event. Two-body inclusive rapidity distributions in the rapidity interval 0.86 to -0.86 covered by the detector are also presented. The main corrections to the data, as well as considerations of background effects, are extensively discussed. Also discussed are a Monte Carlo calculation of the gamma-ray multiplicity distribution expected from ..pi../sup 0/ decay and a calculation based upon an independent emission model of ..pi../sup 0/ production. Both calculations give identical results, which are found to be several orders of magnitude lower than the experimental results for gamma multiplicities greater than or equal to 10. (auth)
Date:
July 3, 1975
Creator:
Dell, G. F.; Uto, H.; Yuan, L. C. L.; Amaldi, E.; Beneventano, M.; Borgia, B. et al.
Object Type:
Report
System:
The UNT Digital Library
Technical evaluation of the proposed design modifications and technical specification changes on grid voltage degradation (Part A) for the Peach Bottom Atomic Power Station, Units 2 and 3: selected issues program (Docket Nos. 50-277, 50-278)
This report documents the technical evaluation of the proposed design modification and Technical Specification changes for protection of Class 1E equipment from grid voltage degradation for the Peach Bottom Atomic Power Station, Units 2 and 3. The review criteria are based on several IEEE standards and The Code of Federal Regulations. The evaluation compares the submittals made by the plant with the NRC staff positions and the review criteria. The licensee meets the requirements of the NRC except for the submittal of proposed Technical Specification changes to substantiate the proposed circuit modifications and relay setpoints.
Date:
November 3, 1981
Creator:
White, R. L.
Object Type:
Report
System:
The UNT Digital Library
Review of literature on catalytic recombination of hydrogen--oxygen. [Removal of hydrogen from containment atmosphere following LWR blowdown]
The results are reported of a literature search for information concerning the heterogeneous, gas phase, catalytic hydrogen-oxygen recombination. Laboratory scale experiments to test the performance of specific metal oxide catalysts under conditions simulating the atmosphere within a nuclear reactor containment vessel following a loss-of-coolant blowdown accident are suggested.
Date:
May 3, 1968
Creator:
Homsy, R. V. & Glatron, C. A.
Object Type:
Report
System:
The UNT Digital Library
Numerical investigation of hose instability of a Bennet beam. [Beam simulation]
The hose instability is examined numerically for an unmodulated beam with the Bennett current profile J(r) ..cap alpha.. (1 + r/sup 2//a/sup 2/)/sup -2/. Channel conductivity sigma(r) is also of this form. The dispersion relation of Lee shows excellent agreement with numerical results. Transient behavior of beam is studied and found consistent with Lee's work.
Date:
June 3, 1976
Creator:
Leary, J. M.
Object Type:
Report
System:
The UNT Digital Library
Proceedings of the international conference on liquid metal technology in energy production
Each paper in the volume has been separately abstracted and indexed. (DG)
Date:
May 3, 1976
Creator:
Cooper, M. H.
Object Type:
Article
System:
The UNT Digital Library
ARTEMIS: a diffraction model for laser light propagation
None
Date:
February 3, 1977
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
SUNRAYCE 93: Working safely with lead-acid batteries and photovoltaic power systems
The US Department of Energy (DOE) is sponsoring SUNRAYCE 93 to advance tile technology and use of photovoltaics and electric vehicles. Participants will use cars powered by photovoltaic modules and lead-acid storage batteries. This brochure, prepared for students and faculty participating in this race, outlines the health hazards presented by these electrical systems, and gives guidance on strategies for their safe usage. At the outset, it should be noted that working with photovoltaic systems and batteries requires electric vehicle drivers and technicians to have [open quotes]hands-on[close quotes] contact with the car on a daily basis. It is important that no one work near a photovoltaic energy system or battery, either in a vehicle or on the bench, unless they familiarize themselves with the components in use, and know and observe safe work practices including the safety precautions described in the manuals provided by the various equipment vendors and this document.
Date:
November 3, 1992
Creator:
DePhillips, M. P.; Moskowitz, P. D. & Fthenakis, V. M.
Object Type:
Report
System:
The UNT Digital Library
General purpose heat source (GPHS) clad vent set (CVS) formability study
Primarily, Mound was to evaluate both improved-iridium and standard-flight iridium blanks with respect to current GPHS-CVS manufacturing processes and provide example-weld-quality CVS to the Savannah River Plant (SRP) for its weldability study. Additionally, Mound's practice of performing a final outgassing (1500/sup 0/C for 1 hr) of CVS was evaluated with respect to metallurgical properties of iridium cups and electron-beam (EB) welding characteristics of CVS subassembly components.
Date:
November 3, 1986
Creator:
Forrest, M. A.; McDougal, J. R. & Saylor, R. W.
Object Type:
Report
System:
The UNT Digital Library