Search Results

open access

Geothermal Energy Resource Investigations in the Eastern Copper River Basin, Alaska

Description: This report consists of a review of the geological, geochemical and geophysical data available for the Eastern Copper River basin with emphasis on the mud volcanoes, and the results of geophysical and geochemical studies carried out in the summers of 1982 and 1984. The purpose was to determine if there are geothermal energy resources in the Copper River Basin. The Eastern Copper River basin is situated on the flanks of a major volcano, Mt. Drum, which was active as late as 200,000 years ago and… more
Date: June 1, 1985
Creator: Wescott, E. M. & Turner, D. L.
Partner: UNT Libraries Government Documents Department
open access

Ultrasonic longitudinal wave velocity in carbon-carbon Pitch and Pitch/M2 shape stable nosetip material from 70/sup 0/F to 5400/sup 0/F

Description: A pulse echo method was used in two notched rods of carbon-carbon Pitch material and one rod of Pitch/M2 shape stable nosetip material to measure the temperature dependence of the longitudinal wave velocity from room temperature to 5400/sup 0/F. The velocity was constant to within 2% of the room temperature value for the Pitch parent material throughout the temperature range. For the Pitch/M2 material, the velocity increased to a maximum of 10% at 4000/sup 0/F and then decreased rapidly. Room t… more
Date: June 1, 1985
Creator: Gieske, J. H.
Partner: UNT Libraries Government Documents Department
open access

Status of the DOE Battery and Electrochemical Technology Program V

Description: The program consists of two activities, Technology Base Research (TBR) managed by the Lawrence Berkeley Laboratory (LBL) and Exploratory Technology Development and Testing (EDT) managed by the Sandia National Laboratories (SNL). The status of the Battery Energy Storage Test (BEST) Facility is presented, including the status of the batteries to be tested. ECS program contributions to the advancement of the lead-acid battery and specific examples of technology transfer from this program are given… more
Date: June 1, 1985
Creator: Roberts, R.
Partner: UNT Libraries Government Documents Department
open access

Measurement of the analyzing power for pion proton elastic scattering between 471 and 687 MeV/c

Description: The analyzing power, A/sub N/, has been measured for ..pi../sup + -/p..--> pi../sup + -/p at 471, 547, 625, and 687 MeV/c in an angular range corresponding to -0.9 less than or equal to cos theta/sub cm/ less than or equal to 0.8. A polarized proton target with polarization axis normal to the scattering plane was used. The scattered pion and recoil proton were detected in coincidence, using a magnetic spectrometer and a wire chamber/scintillator array, except in cases where one of the particles… more
Date: June 1, 1985
Creator: Mokhtari-Amirmajdi, A.
Partner: UNT Libraries Government Documents Department
open access

Underground Energy Storage Program. 1984 annual summary

Description: Underground Energy Storage (UES) Program activities during the period from April 1984 through March 1985 are briefly described. Primary activities in seasonal thermal energy storage (STES) involved field testing of high-temperature (>100/sup 0/C (212/sup 0/F)) aquifer thermal energy storage (ATES) at St. Paul, laboratory studies of geochemical issues associated with high-temperatures ATES, monitoring of chill ATES facilities in Tuscaloosa, and STES linked with solar energy collection. The scope… more
Date: June 1, 1985
Creator: Kannberg, L.D.
Partner: UNT Libraries Government Documents Department
open access

Spin-flip (p,n) reactions on /sup 26/Mg, /sup 54/Fe, and /sup 56/Fe at selected proton bombarding energies in the range of 17 to 25 MeV

Description: New data are presented for the /sup 26/Mg(p,n)/sup 26/Al reaction at E/sub p/ = 19.12 and 24.97 MeV, for the /sup 54/Fe(p,n)/sup 54/Co reaction at E/sub p/ = 17.20, 18.60, and 24.60 MeV, and for the /sup 56/Fe(p,n)/sup 56/Co reaction at E/sub p/ = 19.12 and 24.59 MeV. Data were taken with the LLNL Cyclograaff at 16 angles from 3.5/sup 0/ to 159.0/sup 0/. A large detector at 23.8/sup 0/ with a long neutron flight path collected high resolution spectra. This large detector also collected separate… more
Date: June 1, 1985
Creator: Aron, D.L.
Partner: UNT Libraries Government Documents Department
open access

Heavy ion fusion half year report, October 1, 1984-March 30, 1985

Description: Summaries of research are given for each of the following experiments: (1) MBE-4: a four-beam induction linac experiment, (2) performance of the MBE-4 injector, (3) design procedure for acceleration and bunching in an induction linac, (4) longitudinal dynamics of MBE-4, (5) transverse beam dynamics, (6) envelope functions of high-current beam, (7) electrostatic energy analyzer, (8) longitudinal beam control, (9) a capacitive beam-charge monitor for SBTE, (10) materials R and D, (11) simulations… more
Date: June 1, 1985
Partner: UNT Libraries Government Documents Department
open access

X-ray diffraction study of reversible deformation mechanisms in the aged uranium-6. 5 niobium alloy

Description: The x-ray diffraction (XRD) data from 200/sup 0/C/2h-aged uranium-6.5 wt % niobium (U-6.5Nb) alloys, taken under stress as a function of strain, revealed a gamma-zero (..gamma../sup 0/)..-->.. alpha prime-prime (..cap alpha..'') thermoelastic martensitic phase transformation. It was concluded that the primary reversible deformation modes consisted of the movement of ..gamma../sup 0//..cap alpha..'' interphase interfaces and ..cap alpha..'' intervariant interfaces. Specimen elasticity at low str… more
Date: June 21, 1985
Creator: Carpenter, D.A.
Partner: UNT Libraries Government Documents Department
open access

Manual for the thermal and hydraulic design of direct contact spray columns for use in extracting heat from geothermal brines

Description: This report outlines the current methods being used in the thermal and hydraulic design of spray column type, direct contact heat exchangers. It provides appropriate referenced equations for both preliminary design and detailed performance. The design methods are primarily empirical and are applicable for us in the design of such units for geothermal application and for application with solar ponds. Methods for design, for both preheater and boiler sections of the primary heat exchangers, for d… more
Date: June 1, 1985
Creator: Jacobs, H. R.
Partner: UNT Libraries Government Documents Department
open access

Black holes, pregalactic stars, and the dark matter problem

Description: We review the different ways in which black holes might form and discuss their various astrophysical and cosmological consequences. We then consider the various constraints on the form of the dark matter and conclude that black holes could have a significant cosmological density only if they are of primordial origin or remnants of a population of pregalactic stars. This leads us to discuss the other cosmological effects of primordial black holes and pregalactic stars. 239 refs., 7 figs., 5 tabs. more
Date: June 1, 1985
Creator: Carr, B.J.
Partner: UNT Libraries Government Documents Department
open access

Lectures on probability and statistics. Revision

Description: These notes are based on a set of statistics lectures delivered at Imperial College to the first-year postgraduate students in High Energy Physics. They are designed for the professional experimental scientist. They begin with the fundamentals of probability theory, in which one makes statements about the set of possible outcomes of an experiment, based upon a complete a priori understanding of the experiment. For example, in a roll of a set of (fair) dice, one understands a priori that any giv… more
Date: June 1, 1985
Creator: Yost, G.P.
Partner: UNT Libraries Government Documents Department
open access

Characterizing the sources, range, and environmental influences of radon 222 and its decay products

Description: Recent results from our group directly assist efforts to identify and control excessive concentrations of radon 222 and its decay products in residential environments. We have demonstrated directly the importance of pressure-induced flow of soil gas for transport of radon from the ground into houses. Analysis of available information from measurements of concentration in US homes has resulted in a quantitative appreciation of the distribution of indoor levels, including the degree of dependence… more
Date: June 1, 1985
Creator: Nero, A. V.; Sextro, R. G.; Doyle, S. M.; Moed, B. A.; Nazaroff, W. W.; Schwehr, M. B. et al.
Partner: UNT Libraries Government Documents Department
open access

Evaluation of geologic controls on geothermal anomalies in the Arkoma Basin, Oklahoma

Description: Vitrinite-reflectance techniques were used to determine if there is a relationship between present geothermal gradient and coal rank in the Arkoma Basin. Three coal seams from high geothermal-gradient areas were compared with the same coal seams, respectively, from low geothermal-gradient areas. Samples were obtained from three core holes that were drilled in the high geothermal-gradient areas in Pittsburg and Haskell Counties, and three core holes that were drilled in the low geothermal-gradie… more
Date: June 1, 1985
Creator: Cardott, B. J.; Hemish, L. A.; Johnson, C. R. & Luza, K. V.
Partner: UNT Libraries Government Documents Department
open access

Heavy-Ion Fusion System Assessment Project quarterly status report, January-March 1985

Description: A computer model of an accelerator system is a necessary ingredient in estimating the cost of construction and operation of an ion-driven ICF power plant. The LBL computer program LIACEP (Linear Induction Accelerator Cost Evaluation Program) is used to estimate the cost and efficiency of a heavy ion induction linear accelerator as a function of the ion mass, charge and energy for a specified beam output energy, power and pulse repetition frequency. In addition to estimating the accelerator syst… more
Date: June 1, 1985
Creator: Lee, E.P.; Hovingh, J. & Faltens, A.
Partner: UNT Libraries Government Documents Department
open access

Three-dimensional mise-a-la-masse modeling applied to mapping fracture zones

Description: A numerical scheme applying the method of integral equations has been developed for borehole-to-borehole and borehole-to-surface modeling of the apparent resistivity response of a thin conductive body in a half-space; the inhomogeneity simulates a fracture zone. The algorithm is applicable for the direct-current case when the buried electrode is either inside (mise-a-la-masse) or outside (near-miss) the body. In implementing the scheme, the integral equation is transformed into a matrix equatio… more
Date: June 1, 1985
Creator: Beasley, C. W. & Ward, S. H.
Partner: UNT Libraries Government Documents Department
open access

Superconductor procurement and R and D for SSC

Description: We describe the results of superconductor procurements for SSC dipole model magnets. Most results will pertain to LBL procurements for the LBL-BNL collaboration; however, where appropriate to complete the SSC data base, reference will be made to material purchased by FNAL and TAC. Also, most of the results to be presented will relate to the conventional SSC conductors, i.e., with filament sizes in the range of 15 to 25 ..mu..m. Some information on fine filament NbTi material, such as quantities… more
Date: June 1, 1985
Creator: Scanlan, R.; Royet, J.; Hannaford, R. & Horler, D.
Partner: UNT Libraries Government Documents Department
open access

EE Technical Review

Description: Areas of research reported include: ultrafast gating of microchannel plate x-ray spectrometers, study of power MOS fast switching techniques, lightning vulnerability of nuclear explosive test systems at the Nevada Test Site, and a computer model of the MFTF-B neutral beam accel dc power supply.
Date: June 1, 1985
Partner: UNT Libraries Government Documents Department
open access

Adult Fishway Inspections on the Columbia and Snake Rivers, 1984-1985 Annual Report.

Description: Mainstream projects which have adult fish passage facilities are inspected by project operators, fishway attendants, and state and federal fishery agencies. The overall movement of upstream migrants in 1984 appeared to be satisfactory with few delays. Special efforts were made by fishery agencies and Corps personnel to check on potential problems which appeared to exist at The Dalles and John Day Dams this year. However, adult passage facilities were operating ''in criteria'' and fish may have … more
Date: June 28, 1985
Creator: Basham, Larry R.
Partner: UNT Libraries Government Documents Department
open access

Wind loading on solar collectors

Description: The present design methodology for the determination of wind loading on the various solar collectors has been reviewed and assessed. The total force coefficients of flat plates of aspect ratios 1.0 and 3.0, respectively, at various angles of attack obtained by using the guidelines of the ANSI A58.1-1982, have been compared with those obtained by using the methodology of the ASCE Task Committee, 1961, and the experimental results of the full-scale test of heliostats by Peglow. The turbulent ener… more
Date: June 1, 1985
Creator: Bhaduri, S. & Murphy, L.M.
Partner: UNT Libraries Government Documents Department
open access

Tutorial on the Warren Abstract Machine for Computational Logic

Description: Tutorial description of the Warren machine with a basic introduction to the motivation of the machine and the instructions that define it. Discussion of the fairly limited extensions required to extend the machine for more general use outside of implementations of logic programming. Substantial speedups will occur due to improvements in the implementation of the basic algorithms.
Date: June 1985
Creator: Gabriel, John R.; Lindholm, Tim; Lusk, E. L. & Overbeek, R. A.
Partner: UNT Libraries Government Documents Department
open access

Advanced Fuel Cell Development Progress Report: July-September 1984

Description: Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes studies directed toward seeking alternative cathode materials to NiO for molten carbonate fuel cells.
Date: June 1985
Creator: Ackerman, J. P.; Pierce, Robert Dean; Nelson, P. A. & Arons, R. M.
Partner: UNT Libraries Government Documents Department
open access

Fluid Forces on Two Circular Cylinders in Crossflow

Description: Fluid excitation forces are measured in a water loop for two circular cylinders arranged in tandem and normal to flow. The Strouhal number and fluctuating drag and lift coefficients for both cylinders are presented for various spacings and incoming flow conditions. Results show the effects of Reynolds number, pitch ratio, and upstream turbulence on the fluid excitation forces.
Date: June 1985
Creator: Jendrzejczyk, J. A. & Chen, Shoei-Sheng
Partner: UNT Libraries Government Documents Department
open access

Flow-Induced Vibration of Circular Cylindrical Structures

Description: This report summarizes the flow-induced vibration of circular cylinders in quiescent fluid, axial flow, and crossflow, and applications of the analytical methods and experimental data in design evaluation of various system components consisting of circular cylinders.
Date: June 1985
Creator: Chen, Shoei-Sheng
Partner: UNT Libraries Government Documents Department
open access

Use of Monitors in FORTRAN: a Tutorial on the Barrier, Self-Scheduling DO-Loop, and Askfor Monitors

Description: A set of macro libraries has been developed that allows programmers to write portable FORTRAN code for multiprocessors. This document presents, in tutorial form, the macros used to implement three common synchronization patterns: self-scheduling DO-loops, barrier synchronization, and the askfor monitor.
Date: June 1985
Creator: Lusk, Ewing L. & Overbeek, Ross A.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen