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Linear Algebra on High-Performance Computers

Description: This paper surveys work recently done at Argonne National Laboratory in an attempt to discover ways to construct numerical software for high-performance computers. The numerical algorithms are taken from several areas of numerical linear algebra. Discussion of certain architectural features of advanced-computer architectures that will affect the design of algorithms. The technique of restructuring algorithms in terms of certain modules is reviewed. This technique has proved successful in obtain… more
Date: January 1986
Creator: Dongarra, J. J. & Sorensen, D. C.
Partner: UNT Libraries Government Documents Department
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Effects of Operating Temperature on the Characteristics of Nickel/Iron Traction Batteries

Description: Performance of improved Ni/Fe electric vehicle batteries was measured at ambient temperatures of 0, 25, and 50 C for a range of overcharge levels, open-circuit stand times, and charge and discharge rates. Tests in which charges and discharges were performed at different battery operating temperatures showed that the discharge capacity of a Ni/Fe battery is directly related to its operating temperature, but its charge acceptance is decreased at 0 and 50 C by approx. 6% from that obtained at 25 C… more
Date: July 1986
Creator: DeLuca, W. H.; Biwer, R. L. & Tummillo, A. F.
Partner: UNT Libraries Government Documents Department
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An Alternative Library Under 4. 2 BSD UNIX on a VAX 11/780

Description: This paper describes an alternative library of elementary functions prepared for use with the standard Fortran compiler under 4.2 BSD UNIX on a VAX 11/780. The library, written in C and based on the book ''Software Manual for the Elementary Functions'' by Cody and Waite, offers improved accuracy over the standard system library, as well as additional capabilities. Listings and output from the ELEFUNT suite of test programs are included in the appendix.
Date: February 1986
Creator: Cody, William James
Partner: UNT Libraries Government Documents Department
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Leakage Flow-Induced Vibrations for Variations of a Tube-in-Tube Slip Joint

Description: Variations in the design of a specific slip joint separating two cantilevered, telescoping tubes conveying water were studied to determine their effect upon the leakage flow-induced vibration self-excitation mechanism known to exist for the original slip joint geometry. The important parameters controlling the self-excitation mechanism were identified, which, along with previous results, allowed the determination of a comprehensive set of design rules to avoid unstable vibrations. This was poss… more
Date: January 1986
Creator: Mulcahy, T. M.
Partner: UNT Libraries Government Documents Department
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Johnson Controls Inc. Battery Division Annual Report, 1985: Research, Development and Demonstration of Lead-Acid Batteries for Electric Vehicle Propulsion

Description: Report on research and development of the lead-acid battery for electric vehicle propulsion, focusing on continuing development on the forced electrolyte flow-through concept with some work on the composite, plastic/lead grid.
Date: March 1986
Creator: Johnson Controls, Inc. Globe Battery Division.
Partner: UNT Libraries Government Documents Department
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Chemical Technology Division Annual Technical Report 1985

Description: Highlights of the Chemical Technology (CMT) Division's activities during 1985 are presented. In this period, CMT conducted research and development in areas that include advanced batteries--mainly lithium-alloy/metal sulfide and sodium/sulfur, advanced fuel cells with molten carbonate or solid oxide electrolytes, corrosion-protective coatings for high-strength steel, coal utilization, including the heat and seed recovery technology for coal-fired magnetohydrodynamics plants and the technology f… more
Date: April 1986
Creator: Steindler, M. J.; Nelson, P. A.; Ackerman, J. P. & Johnson, C. E.
Partner: UNT Libraries Government Documents Department
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Analysis of Heat-Pipe Absorbers in Evacuated-Tube Solar Collectors

Description: Heat transfer in evacuated-tube solar collectors with heat-pipe absorbers is compared with that for similar collectors with flow-through absorbers. In systems that produce hot water or other heated fluids, the heat-pipe absorber suffers a heat transfer penalty compared with the flow-through absorber, but in many cases the penalty can be minimized by proper design at the heat-pipe condenser and system manifold. The heat transfer penalty decreases with decreasing collector heat loss coefficient, … more
Date: February 1986
Creator: Hull, John R.; Schertz, William W. & Allen, John W.
Partner: UNT Libraries Government Documents Department
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Heat Extraction from the ANL Research Salt Gradient Solar Pond

Description: This report documents the design considerations and test results of two heat extraction systems for the ANL Research Salt Gradient Solar Pond (RSGSP). Since operation began in November 1980, the RSGSP has been used to study a wide variety of solar pond phenomena, and the behavior of the RSGSP without heat extraction has been well characterized. Heat extraction equipment was installed in the spring of 1984, with heat extraction experiments conducted the following summer and fall and in the fall … more
Date: February 1986
Creator: Hull, John R.; Scranton, A. B.; Mehta, J. M.; Cho, S. H. & Kasza, Kenneth Edmund
Partner: UNT Libraries Government Documents Department
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Instability Characteristics of Fluidelastic Instability of Tube Rows in Crossflow

Description: An experimental study is reported to investigate the jump phenomenon in critical flow velocities for tube rows with different pitch-to-diameter ratios and the excited and intrinsic instabilities for a tube row with a pitch-to-diameter ratio of 1.75. The experimental data provide additional insights into the instability phenomena of tube arrays in crossflow.
Date: April 1986
Creator: Chen, Shoei-Sheng & Jendrzejczyk, J. A.
Partner: UNT Libraries Government Documents Department
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Physics Division Annual Review 1 April 1985 - March 1986

Description: Report of various activities in Argonne National Laboratory Physics Division including medium-energy physics research, research at ATLAS, theoretical nuclear physics, superconducting LINAC development, and accelerator operations.
Date: September 1986
Creator: Gemmell, Donald S.
Partner: UNT Libraries Government Documents Department
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Leakage Flow-Induced Vibration of an Unconstricted Tube-in-Tube Slip Joint

Description: The conditions are given for which the more flexible of two cantilevered, telescoping tubes conveying fluid can be self-excited by flow leaking from an un-constricted slip joint. Also, a physical explanation of the excitation mechanism is discussed, and a design rule to avoid the mechanism is presented. In addition, the results for the un-constricted slip joint are shown to be similar to those for slip joints having annulus constrictions at very short engagement lengths.
Date: March 1986
Creator: Mulcahy, T. M.
Partner: UNT Libraries Government Documents Department
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Activities and Operations of the Advanced Computing Research Facility. January 1985 - July 1986

Description: This report discusses research activities and operations of the Advanced Computing Research Facility (ACRF) at Argonne National Laboratory from January 1985 through June 1986. During this period, the Mathematics and Computer Science Division (MCS) at Argonne received incremental funding from the Applied Mathematical Sciences program of the DOE Office of Energy Research to operate computers with innovative designs that promise to be useful for advanced scientific research. Over a five-month peri… more
Date: 1986
Creator: Mihaly, Tina & Pieper, Gail W.
Partner: UNT Libraries Government Documents Department
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Research in Mathematics and Computer Science at Argonne : April 1, 1985 - June 30, 1986

Description: This report reviews the research activities in the Mathematics and Computer Science Division at Argonne National Laboratory for the period April, 1985 through June 30, 1986. The body of the report gives a brief look at the MCS staff and the research facilities, and discusses various projects carried out in four major areas of research: advanced computing, applied analysis, computational mathematics, and software methodology. Information on division staff, visitors, workshops, and seminars is fo… more
Date: 1986
Creator: Pieper, Gail W. & Messina, P. C.
Partner: UNT Libraries Government Documents Department
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SARA : a Small Automated Reasoning Assistant

Description: SARA is a rewriting system where the rewrite rules are heads of Horn clauses. Thus an expression is rewritten only when the conjunction of goals in the body of the Horn clause is true. The system has a model of rewriting as construction of a linked graph with expressions annotating nodes and rewritings annotating arcs. Cycles in the graph are recognized and may be specially processed by the user. The default is to use an alternative rewriting rule to break out of this cycle.
Date: 1986
Creator: Gabriel, John R.
Partner: UNT Libraries Government Documents Department
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One-year Results of the NNWSI Unsaturated Test Procedure : SRL 165 Glass Application

Description: Investigation of the volcanic tuff beds of Yucca Mountain Nevada, as a potential site for a high-level waste repository is a function of the Nevada Nuclear Waste Storage Investigations (NNWSI). A series of tests with SRL 165 type glass was performed to determine whether the NNWSI Unsaturated Test could be used to produce data that would be useful in assessing waste form performance under unsaturated conditions anticipated for the NNWSI repository site.
Date: August 1986
Creator: Bates, John K. & Gerding, Thomas J.
Partner: UNT Libraries Government Documents Department
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The Reaction of Glass During Gamma Irradiation in a Saturated Tuff Environment: Part 1, SRL 165 Glass

Description: The influence of gamma irradiation on the reaction of actinide-doped borosilicate glass (SRL 165) in a saturated tuff environment has been studied in a series of tests lasting up to 56 days. The following conclusions were reached. The reaction of, and subsequent actinide release from, the glass depends on the dynamic interaction between radiolysis effects, which cause the solution pH to become more acidic; glass reaction, which drives the pH more basic; and test component interactions that may … more
Date: February 1986
Creator: Bates, John K.; Fischer, Donald F. & Gerding, Thomas J.
Partner: UNT Libraries Government Documents Department
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Transforming Fortran DO Loops to Improve Performance on Vector Architectures

Description: The performance of programs executing on vector computers is significantly improved when the number of accesses to memory can be reduced. Unrolling Fortran DO loops, followed by substitutions and eliminations in the unrolled code, can reduce the number of loads and stores. The unrolling transformation and associated transformations of Fortran DO loops are characterized, and a set of software tools to carry out these transformations is described. The tools use the machinery available in Toolpack… more
Date: February 1986
Creator: Cowell, Wayne R. & Thompson, Christopher P.
Partner: UNT Libraries Government Documents Department
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Effect of Depth of Discharge on Lead-Acid Battery Overcharge Requirements

Description: Proper charging is essential to achieve maximum performance and life of lead-acid batteries. Excessive overcharging gives rise to increased battery temperature, gassing rates, electrolyte maintenance, and component corrosion, whereas repeated undercharging causes a gradual decrease in battery capacity, which often becomes irreversible. To develop an optimal charge procedure, the relation between battery available capacity, applied overcharge, and the depth-of-discharge (DOD) level prior to char… more
Date: February 1986
Creator: DeLuca, W. H. & Tummillo, A. F.
Partner: UNT Libraries Government Documents Department
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Tin Reconnaissance of the Kanuti and Hodzana Rivers Uplands, Central Alaska

Description: Report issued by the U.S. Bureau of Mines discussing mineral development potentials of Central Alaska. Investigations on location, geology, and sampling methods are presented. This report includes maps, tables, illustrations, and photographs.
Date: 1986
Creator: Barker, James C. & Foley, Jeffrey Y.
Partner: UNT Libraries Government Documents Department
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Company Towns Versus Company Camps in Developing Alaska's Mineral Resources

Description: Report issued by the U.S. Bureau of Mines discussing comparisons between company camps and company towns in Alaska's mineral properties. The cost differences between operating towns, camps, and commuting options are presented. This report includes maps, tables, and illustrations.
Date: 1986
Creator: Bottge, Robert
Partner: UNT Libraries Government Documents Department
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Polishing Methods for Metallic and Ceramic Transmission Electron Microscopy Specimens, Rev. 1

Description: "In recent years, the increasing sophistication of transmission electron microscope (TEM) studies of materials has necessitated more exacting methods of specimen preparation. The present report describes improved equipment and techniques for electropolishing and chemically polishing a wide variety of specimens. Many of the specimens used in developing or improving the techniques to be described were irradiated with heavy ions such as nickel or vanadium to study radiation damage. The high cost o… more
Date: March 1986
Creator: Kestel, B. J.
Partner: UNT Libraries Government Documents Department
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