Technical Report Archive & Image Library (TRAIL) - 34 Matching Results

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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.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Activities and Operations of the Advanced Computing Research Facility : July - October 1986

Description: Research activities and operations of the Advanced Computing Research Facility (ACRF) at Argonne National Laboratory are discussed for the period from July 1986 through October 1986. The facility is currently supported by the Department of Energy, and is operated by the Mathematics and Computer Science Division at Argonne. Over the past four-month period, a new commercial multiprocessor, the Intel iPSC-VX/d4 hypercube was installed. In addition, four other commercial multiprocessors continue to… more
Date: 1986
Creator: Pieper, Gail W.
Item Type: Refine your search to only Report
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
Item Type: Refine your search to only Report
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.
Item Type: Refine your search to only Report
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.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Deriving Properties of Systems from Properties of Parts and Lists of Connections

Description: This paper presents an algorithm in PROLOG for compiling recursively computable descriptions of system behavior from computable descriptions of behavior for parts and lists of interconnections. We give a set of conditions that must be satisfied by various data structures in the computation. It seems possible to provide an informal verification (by hand) that these conditions are true also of the output.
Date: December 1986
Creator: Gabriel, John R. & Chapman, Richard O.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Dynamic Behavior of Reacting Gas Jets Submerged in Liquids: a Photographic Study : Annual Report for the Period May 1, 1985 - May 1, 1986

Description: A photographic study of a hydrogen chloride gas jet reacting in an aqueous solution of ammonia was conducted. The high-speed motion pictures taken revealed that the behavior of the reacting gas jet was highly dynamic and complex. The gaseous jet penetration (''plume'') was not stationary, but underwent a change in shape and size with time, which appeared to be periodic or cyclic. Certain observations made, including a high-pitched sound, exhibited a striking similarity to the so-called ''singin… more
Date: September 1986
Creator: Cho, D. H.; Armstrong, D. R. & Bova, L.
Item Type: Refine your search to only Report
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.
Item Type: Refine your search to only Report
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.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Flow Enhancement of Annulus Damping

Description: Significant increases in flow damping were observed for a tube passing through a plate when a sharp-edge raised-diameter constriction was added to the hole in a plate subject to a constant pressure drop. A correlation of the data in the form of a concentrated viscous damper (dashpot) is given which will be useful in structural dynamic analysis.
Date: April 1986
Creator: Mulcahy, T. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A Formal Notation for Hardware and Software Verification

Description: Some years ago a theory was published describing compilation of digital logic system build descriptions (list of behaviors for elementary components and connections between them) into recursively computable system behavior descriptions. The current work describes an analogous theory for computer programs.
Date: October 1986
Creator: Chapman, Richard O. & Gabriel, John R.
Item Type: Refine your search to only Report
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
Item Type: Refine your search to only Report
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.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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An ITP Workbook

Description: This collection of exercises has been prepared to teach the use of the automated reasoning system ITP. Previous knowledge of automated reasoning is not presumed. The exercises are designed for use with the UNIX operating system.
Date: December 1986
Creator: Kalman, John A.
Item Type: Refine your search to only Report
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.
Item Type: Refine your search to only Report
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.
Item Type: Refine your search to only Report
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.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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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.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Mathematics and Computer Science Division Five-Year Plan, 1986 - 1991

Description: This report sets forth the plans for the Mathematics and Computer Science Division during the next five years. These plans build on the Division's strong research programs in applied analysis, computational mathematics, software methodology, and advanced computing. The report addresses five major issues: research programs, research environment, dissemination of research techniques, initiatives, and resource projections.
Date: November 1986
Creator: Argonne National Laboratory. Mathematics and Computer Science Division.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Measuring the Absolute Disintegration Rate of a Radioactive Gas with a Moveable Endplate Discharge Counter (MEP) and Theoretical Calculation of Wall Effect

Description: A precision built moveable endplate Geiger-Mueller counter was used to measure the absolute disintegration rate of a beta-emitting radioactive gas. A Geiger-Mueller counter used for measuring gaseous radioactivity has <100% counting efficiency owing to two factors: (1) ''end effect, '' due to decreased and distorted fields at the ends where wire-insulator joints are placed, and (2) ''wall effect, '' due to non-ionization by beta particles emitted near to and heading into the wall. The end effec… more
Date: June 1986
Creator: Jaffey, Arthur H.; Gray, James; Bentley, William C. & Lerner, Jerome L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Motion-Dependent Fluid Forces Acting on a Tube Row in Crossflow

Description: Motion-dependent fluid forces acting on a tube row with a pitch-to-diameter ratio of 1.35 are measured for several flow velocities and a series of oscillation frequencies. Fluid-damping and fluid-stiffness coefficients are obtained from motion-dependent fluid forces as a function of reduced flow velocity. Fluid-force coefficients agree reasonably with published data. Based on the fluid-force coefficients, the critical flow velocity and instability characteristics of tube arrays in crossflow can… more
Date: October 1986
Creator: Jendrzejczyk, J. A. & Chen, Shoei-Sheng
Item Type: Refine your search to only Report
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.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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