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  Partner: UNT Libraries Government Documents Department
 Decade: 1980-1989
 Year: 1988
 Collection: Technical Report Archive and Image Library
Accurate and Efficient Testing of the Exponential and Logarithm Functions in Ada

Accurate and Efficient Testing of the Exponential and Logarithm Functions in Ada

Date: November 1988
Creator: Tang, Ping Tak Peter
Description: Report of how table-driven techniques can be used to test highly accurate implementations of EXP and LOG.
Contributing Partner: UNT Libraries Government Documents Department
Acoustic Leak Detection for District Heating Systems

Acoustic Leak Detection for District Heating Systems

Date: February 1988
Creator: Kupperman, D. S. & Karvelas, D. E.
Description: An acoustic leak detection facility was completed and used to evaluate the capability of piezoelectric sensors, accelerometers, and capacitance microphones to detect and locate gas and water leaks in underground district heating and cooling (DHC) piping. Leak detection sensitivity and location capabilities for DHC systems were estimated from laboratory data and from data obtained from the underground DH system in Scranton, Pennsylvania, where acoustic background noise levels and acoustic signals from field-induced steam leaks were acquired. Acoustic detection of leaks with flow rates of less than 10 gpm is possible at a distance of several hundred meters, with a location accuracy of a few meters. Although steam leaks of comparable mass loss can be detected over a similar range with transducers mounted on the pipe outer wall, location accuracy of a few meters over this range may only be possible with transducers in direct contract with the steam. Intrusive sensors may also be necessary to detect and locate leaks in plastic pipe.
Contributing Partner: UNT Libraries Government Documents Department
Advanced Thermoplastic Materials for District Heating Piping Systems

Advanced Thermoplastic Materials for District Heating Piping Systems

Date: April 1988
Creator: Raske, D. T. & Karvelas, D. E.
Description: The work described in this report represents research conducted in the first year of a three-year program to assess, characterize, and design thermoplastic piping for use in elevated-temperature district heating (DH) systems. The present report describes the results of a program to assess the potential usefulness of advanced thermoplastics as piping materials for use in DH systems.
Contributing Partner: UNT Libraries Government Documents Department
Annex to 7-GeV Advanced Photon Source : Conceptual Design Report

Annex to 7-GeV Advanced Photon Source : Conceptual Design Report

Date: May 1988
Creator: Argonne National Laboratory
Description: The Annex to the 7-GeV Advanced Photon Source Conceptual Design Report updates the Conceptual Design Report of 1987 (CDR-87) to include the results of further optimization and changes of the design during the past year. The design changes can be summarized as affecting three areas: the accelerator system, conventional facilities, and experimental systems. Most of the changes in the accelerator system result from inclusion of a positron accumulator ring (PAR), which was added at the suggestion of the 1987 DOE Review Committee, to speed up the filling rate of the storage ring. The addition of the PAR necessitates many minor changes in the linac system, the injector synchrotron, and the low-energy beam transport lines. 63 figs., 18 tabs.
Contributing Partner: UNT Libraries Government Documents Department
Annual Site Environmental Report for Argonne National Laboratory

Annual Site Environmental Report for Argonne National Laboratory

Date: April 1988
Creator: Argonne National Laboratory
Description: Report on the environmental impact of Argonne National Laboratory.
Contributing Partner: UNT Libraries Government Documents Department
Annual Technical Report

Annual Technical Report

Date: May 1988
Creator: Argonne National Laboratory. Chemical Technology Division.
Description: Report of Argonne Chemical Technology division activities, including high-performance batteries, aqueous batteries, advanced fuel cells, and coal utilization.
Contributing Partner: UNT Libraries Government Documents Department
An Assessment of the Performance of Heat Exchanger Materials in Fluidized-Bed Combustors

An Assessment of the Performance of Heat Exchanger Materials in Fluidized-Bed Combustors

Date: April 1988
Creator: Natesan, K.; Miller, S. A. & Podolski, W. F.
Description: The work described in this report represents research conducted in the first year of a three-year program to assess, characterize, and design thermoplastic piping for use in elevated-temperature district heating (DH) systems. The present report describes the results of a program to assess the potential usefulness of advanced thermoplastics as piping materials for use in DH systems. This includes the review of design rules for thermoplastic materials used as pipes, a survey of candidate materials and available mechanical properties data, and mechanical properties testing to obtain baseline data on a candidate thermoplastic material extruded as pipe.
Contributing Partner: UNT Libraries Government Documents Department
Calculations of Atomic Sputtering and Displacement Cross-Sections in Solid Elements by Electrons with Energies from Threshold to 1.5 MV

Calculations of Atomic Sputtering and Displacement Cross-Sections in Solid Elements by Electrons with Energies from Threshold to 1.5 MV

Date: December 1988
Creator: Bradley, C. R.
Description: Report on the kinetics of knock-on collisions of relativistic electrons with nuclei and details of the numerical evaluation of differential, recoil, and total Mott cross-sections.
Contributing Partner: UNT Libraries Government Documents Department
A Calibration Service for 30 MHz Attenuation and Phase Shift

A Calibration Service for 30 MHz Attenuation and Phase Shift

Date: May 1988
Creator: Adair, Robert T.
Description: Definitions, capabilities of the calibration system and techniques of calibration are presented.
Contributing Partner: UNT Libraries Government Documents Department
Characteristics of the 7-GeV Advanced Photon Source : a Guide for Users

Characteristics of the 7-GeV Advanced Photon Source : a Guide for Users

Date: February 1988
Creator: Shenoy, G. K.; Viccaro, P. J. & Mills, Dennis M.
Description: In this document we present the characteristics of the electromagnetic radiation from various types of sources on the 7-GeV Advanced Photon Source (APS) storage ring. The sources include bending magnets, undulators, and wigglers. The characteristics are compared with those of other synchrotron sources when operated at their design specifications. The influence of positron beam size on the on-axis brilliance is discussed, along with the power distribution from these sources. The goal of this document is to provide users with enough information on the characteristics of radiation from the APS storage ring so that experiments can be efficiently planned.
Contributing Partner: UNT Libraries Government Documents Department
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