Dynamic Isotope Power System: technology verification phase, program plan, 1 October 1978 (open access)

Dynamic Isotope Power System: technology verification phase, program plan, 1 October 1978

The technology verification phase program plan of the Dynamic Isotope Power System (DIPS) project is presented. DIPS is a project to develop a 0.5 to 2.0 kW power system for spacecraft using an isotope heat source and a closed-cycle Rankine power-system with an organic working fluid. The technology verification phase's purposes are to increase the system efficiency to over 18%, to demonstrate system reliability, and to provide an estimate for flight test scheduling. Progress toward these goals is reported. (LCL)
Date: January 15, 1979
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Elastic and plastic deformation of solids. Final report, February 1, 1960--January 31, 1976 (open access)

Elastic and plastic deformation of solids. Final report, February 1, 1960--January 31, 1976

This is a summary of the techniques used and the results obtained in the study of creep at high pressure, pressure dependence of yield stress and elastic constants, etc. 58 references. (DLC)
Date: July 15, 1976
Creator: Ruoff, A. L.
Object Type: Report
System: The UNT Digital Library
Engineering and economic studies for direct applications of geothermal energy in an industrial park in Pahoa, Hawaii. Quarterly technical progress report number 4 (open access)

Engineering and economic studies for direct applications of geothermal energy in an industrial park in Pahoa, Hawaii. Quarterly technical progress report number 4

That portion of the Hawaiian energy self-sufficiency program which is related to a conceptual use of geothermal heat for industrial and agricultural applications is discussed. It is concluded that a direct heat geothermal industrial park located near Pahoa, Hawaii appears feasible. (MHR)
Date: October 15, 1980
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Summary report of the compressive creep properties of irradiated and unirradiated molybdenum. [Fast neutrons] (open access)

Summary report of the compressive creep properties of irradiated and unirradiated molybdenum. [Fast neutrons]

Compressive creep tests were performed on molybenum samples exposed to four different pre-test conditions: (1) annealed; (2) annealed and neutron irradiated at 480/sup 0/C to a fluence of 5 x 10/sup 19/ n cm/sup -2/ (E > 1 MeV); (3) stress-relieved; and (4) stress-relieved and neutron irradiated at reactor ambient temperature to a fluence of 1 x 10/sup 19/ n cm/sup -2/ (E > 1 MeV). The tests were performed in the temperature range of 600 to 900/sup 0/C with an initial applied stress of 176.5 MPa. Both pre- and post-test specimens were examined using electron microscopy and the relationship between substructure and mechanical properties is discussed. Possible controlling mechanisms of deformation are proposed and activation energies for creep are determined.
Date: April 15, 1977
Creator: Zielinski, R. E.
Object Type: Report
System: The UNT Digital Library
Temperature Distributions in Electron Beam Welding Cavities (open access)

Temperature Distributions in Electron Beam Welding Cavities

Surface temperatures in electron beam welding cavities in stainless steel 304 and aluminum 1100, 2024, and 6061 were measured with a narrow band infrared radiation pyrometer. A special device was designed for mounting the radiation-sensing probe next to the electron beam gun in the welding chamber. This mounting device included a mechanism for oscillating the probe so as to scan the cavity region both perpendicular and parallel to the welding direction. At the center of its movement the probe viewed almost directly down into the welding cavity. The effect of interreflections occurring in the welding cavity were accounted for by the use of an apparent spectral cavity emittance. Typical measured cavity temperature distributions for SS-304 ranged from 1950/sup 0/C at the mouth to a peak of 2350/sup 0/C at the cavity base and from 1300 to 1650/sup 0/C for A1-1100. First approximation predictions of the cavity surface temperatures were determined by assuming a quasi-steady-state condition. The surface temperature is then a function of the vapor pressure, which is required to balance the surface tension and the hydrostatic pressure both of which tend to collapse the cavity. Base temperatures thus predicted were about 5% and 10% higher than measured for SS-304 …
Date: July 15, 1976
Creator: Shintaku, S. M.
Object Type: Report
System: The UNT Digital Library
Number systems: cross-reference guide MCS-8 microcomputer. [Decimal binary, octal, and hexidecimal number systems equivalents, and corresponding teletype characters] (open access)

Number systems: cross-reference guide MCS-8 microcomputer. [Decimal binary, octal, and hexidecimal number systems equivalents, and corresponding teletype characters]

This Number System Cross Reference Guide constitutes a ready reference for programing the MCS-8 Microcomputer or designing logic systems. Columns give the number equivalents of decimal, binary, octal, and hexidecimal systems for decimal numbers zero through 255, as well as a corresponding teletype character opposite each row of equivalent numbers. (RWR)
Date: August 15, 1974
Creator: Ball, M.
Object Type: Report
System: The UNT Digital Library
Energy transport control in window systems (open access)

Energy transport control in window systems

None
Date: September 15, 1976
Creator: Berlad, A. L.; Salzano, F. J. & Batey, J.
Object Type: Report
System: The UNT Digital Library
Brayton Isotope Power System (BIPS) design layout summary (open access)

Brayton Isotope Power System (BIPS) design layout summary

A summary of the Brayton Isotope Power Systems (BIPS) design layout drawings is presented. These drawings were generated in compliance with Task 3 (Preliminary Design of the BIPS Ground Demonstration System) of Phase I of the ERDA sponsored BIPS contract E(04-3)-1123.
Date: June 15, 1976
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Systems study of fuels from grains and grasses. Quarterly progress report, July--October 1976 (open access)

Systems study of fuels from grains and grasses. Quarterly progress report, July--October 1976

The specific objectives of the project are to determine on a geographic basis the current and potential USA production capability for grain and grass crops, to perform a preliminary screening of conversion processes, and to perform preliminary technical and economic feasibility analyses. The results obtained to date on biomass production, conversion processes, and data management are reported. (JSR)
Date: November 15, 1976
Creator: Benson, W.; Allen, A.; Athey, R. & McElroy, A.
Object Type: Report
System: The UNT Digital Library
A lattice gas automata model for heterogeneous chemical reactions at mineral surfaces and in pore networks (open access)

A lattice gas automata model for heterogeneous chemical reactions at mineral surfaces and in pore networks

A lattice gas automata (LGA) model is described, which couples solute transport with chemical reactions at mineral surfaces and in pore networks. Chemical reactions and transport are integrated into a FHP-I LGA code as a module so that the approach is readily transportable to other codes. Diffusion in a box calculations are compared to finite element Fickian diffusion results and provide an approach to quantifying space-time ratios of the models. Chemical reactions at solid surfaces, including precipitation/dissolution, sorption, and catalytic reaction, can be examined with the model because solute diffusion and mineral surface processes are all treated explicitly. The simplicity and flexibility of the LGA approach provides the ability to study the interrelationship between fluid flow and chemical reactions in porous materials, at a level of complexity that has not previously been computationally possible. 20 refs., 8 figs.
Date: January 15, 1990
Creator: Wells, J. T.; Janecky, D. R. & Travis, Bryan J.
Object Type: Article
System: The UNT Digital Library
Transferring the technology of welding and bonding: hands-on courses at LLL make it possible (open access)

Transferring the technology of welding and bonding: hands-on courses at LLL make it possible

The technology training program at LLL is summarized. The program is directed toward transfer of unclassified laboratory technology to government and private-industry employees. Information is included on technology training program (TTP) organization, facilities and equipment, and participating companies and government agencies. A five-day training program on joining, fastening, and welding is outlined. (JRD)
Date: August 15, 1976
Creator: Jensen, C. W. & Hugenberger, C. E.
Object Type: Report
System: The UNT Digital Library
The effects of moisture on the microstructure of cement-based materials (open access)

The effects of moisture on the microstructure of cement-based materials

New experimental techniques that allow the precise measurement of drying shrinkage of cement-based materials within the Environmental Scanning Electron Microscope have been developed. Accuracies of approximately 1% can be obtained on images as small as 20 {times} 20 pixels. Preliminary results on the shrinking of these materials has been obtained and quantitatively analyzed to produce maps'' of the deformation process. Samples have been dried from saturation in environments which a approximately 25% relative humidity, and deformation has been evaluated for the model materials C3S, C3A, and C4AF. The bulk of the effort during this initial period has been to establish the sophisticated experimental techniques which are necessary to pursue the proposed research. In this respect, the initial stage has been extremely successful and we have begun the process of detailed, methodical, documentation of the deformation of both the model materials and ordinary portland cement paste. The possibility of measuring the constraining effects of other phases such as aggregate is now being investigated. These initial results have resulted in four publications. Two publications are of a review nature and two are the reporting our new experimental technique, and initial results. The latter two are being submitted to peer reviewed journals.
Date: July 15, 1992
Creator: Jennings, H. M.
Object Type: Report
System: The UNT Digital Library
Toxicology and metabolism of nickel compounds. Progress report, December 1, 1975--November 30, 1976. [Tests made with rats and hamsters] (open access)

Toxicology and metabolism of nickel compounds. Progress report, December 1, 1975--November 30, 1976. [Tests made with rats and hamsters]

The toxicology and metabolism of nickel compounds (NiCl/sub 2/, Ni/sub 3/S/sub 2/, NiS, Ni powder, and Ni(CO)/sub 4/) were investigated in rats and hamsters. Triethylenetetramine (TETA) and d-penicillamine are more effective than other chelating agents (Na-diethyldithiocarbamate, CaNa/sub 2/-versenate, diglycylhistidine-N-methylamide and ..cap alpha..-lipoic acid) as antidotes for acute Ni(II)-toxicity in rats. The antidotal efficacy of triethylenetetramine (TETA) in acute Ni(II)-toxicity is mediated by rapid reduction of the plasma concentration of Ni(II), consistent with renal clearance of the TETA-Ni complex at a rate more than twenty times greater than the renal clearance of non-chelated Ni(II). Fischer rats are more susceptible than other rat strains (Wistar-Lewis, Long-Evans and NIH-Black) to induction of erythrocytosis after an intrarenal injection of Ni/sub 3/S/sub 2/, and elucidation of the serial pathologic changes that occur in rats after an intrarenal injection of Ni/sub 3/S/sub 2/. When amorphous nickel monosulfide (NiS) and nickel subsulfide (Ni/sub 3/S/sub 2/) were administered by im injection to randomly selected Fischer rats in equivalent amounts under identical conditions, NiS did not induce any tumors whereas Ni/sub 3/S/sub 2/ induced sarcomas in almost all of the rats.
Date: August 15, 1976
Creator: Sunderman, F. W. Jr.
Object Type: Report
System: The UNT Digital Library
Uranium miner lung cancer study. Progress report, July 1, 1975--July 1, 1976 (open access)

Uranium miner lung cancer study. Progress report, July 1, 1975--July 1, 1976

This study on the rate of lung cancer development in uranium miners was initiated in 1957 by the U. S. Public Health and many facets of this project are reaching final objectives. Many new studies have developed in the course of this study and will continue. The projects supported by The Energy Research and Development Administration are of utmost importance and consist of: collection of material from uranium miners known to have cancer of the lung into a tumor registry; manual on pulmonary cytology; regression study of sputum cytological findings in uranium miners who showed marked atypical squamous cell metaplasia and have quit smoking cigarettes, mining, or both; continuation of sputum collection and collection of lungs from deceased miners, and the development of instruments such as uv fiber-optic bronchoscopes for localization of carcinoma in situ of the lung. Approximately 75,000 sputum samples were examined over the last 19 years in cases that showed normal cytology at the inception of study and subsequently developed carcinoma of the lung and resulted in an accumulation of material that is worthy of study.
Date: September 15, 1976
Creator: Saccomanno, G.
Object Type: Report
System: The UNT Digital Library
Calculation of emission from hydrogenic ions in super liquid density plasmas (open access)

Calculation of emission from hydrogenic ions in super liquid density plasmas

Previous calculations of line emission were extended to higher density, lower temperature plasmas, typical of those expected in early ablative compression experiments. Emission from Ne-seeded fuel was analyzed in order to diagnose the density and temperature of the compressed core. The Stark/Doppler broadened emission profile is calculated for the H-like Ne resonance line. The observable lineshape is then obtained by time-averaging over expected density and temperature profiles and by including the effects of radiative transfer.
Date: November 15, 1976
Creator: Bailey, D. S. & Valeo, E. J.
Object Type: Article
System: The UNT Digital Library
Conceptual design report for the Solenoidal Tracker at RHIC (open access)

Conceptual design report for the Solenoidal Tracker at RHIC

The Solenoidal Tracker At RHIC (STAR) will search for signatures of quark-gluon plasma (QGP) formation and investigate the behavior of strongly interacting matter at high energy density. The emphasis win be the correlation of many observables on an event-by-event basis. In the absence of definitive signatures for the QGP, it is imperative that such correlations be used to identify special events and possible signatures. This requires a flexible detection system that can simultaneously measure many experimental observables. The physics goals dictate the design of star and it's experiment. To meet the design criteria, tracking, momentum analysis, and particle identification of most of the charged particles at midrapidity are necessary. The tracking must operate in conditions at higher than the expected maximum charged particle multiplicities for central Au + Au collisions. Particle identification of pions/kaons for p < 0.7 GeV/c and kaons/protons for p < 1 GeV/c, as well as measurement of decay particles and reconstruction of secondary vertices will be possible. A two-track resolution of 2 cm at 2 m radial distance from, the interaction is expected. Momentum resolution of {Delta}p/p {approximately} 0.02 at p = 0.1 GeV/c is required to accomplish the physics, and,{Delta}p/p of several percent at p …
Date: June 15, 1992
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Energy and protein production from pulp mill wastes. Progress report, September 15, 1976--December 15, 1976 (open access)

Energy and protein production from pulp mill wastes. Progress report, September 15, 1976--December 15, 1976

Significant progress was made during the past quarter in establishing the operability and reliability of major pieces of equipment needed for the production of protein and methane from spent sulfite liquor (SSL). Batch ozonations of SSL were conducted at times varying from 1 to 6 hours at pH's in the range of 10 to 2. These screening experiments consistently indicate that low ph's favor the breakdown of SSL into organic fragments which are more easily assimulated by micro-organisms. Approximately 23% of the organics are oxidized at all pH levels indicated that pH has no effect on the total oxidation of SSL. As was expected total sulfur content of SSL is not measurably altered by ozonation. The intense brown color of SSL is appreciably removed during ozonation. The contents of the reactor assume a light brownish-yellow hue during the course of a 4 hour ozonation treatment. Attempts to quantify the reduction have not been successful to date.
Date: December 15, 1976
Creator: Jurgensen, M. F. & Patton, J. T.
Object Type: Report
System: The UNT Digital Library
FFTF operating and administrative index (open access)

FFTF operating and administrative index

None
Date: October 15, 1976
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Investigation of heat exchanger flow arrangement on performance and cost in a geothermal binary cycle (open access)

Investigation of heat exchanger flow arrangement on performance and cost in a geothermal binary cycle

The performance of an idealized geothermal binary-fluid-cycle energy conversion system is shown to be a function of the temperatures of brine and working fluid leaving the heat exchanger. System power output, heat exchanger area required and initial well and heat exchanger costs are determined for counterflow, single and multi-pass parallel-counterflow exchangers. Results are presented graphically as functions of the brine and working fluid exit temperatures from the exchanger. Use of the system analysis developed is illustrated by showing quantitatively the advantage of the counterflow over the other flow arrangements considered.
Date: June 15, 1976
Creator: Giedt, Warren H.
Object Type: Article
System: The UNT Digital Library
Safety and environmental aspects of fusion reactors (open access)

Safety and environmental aspects of fusion reactors

Fusion is examined against the yardstick of fission technology with respect to inventories of radioactivity (and associated Biological Hazard Potentials), routine emissions, accident pathways and consequences, radioactive-waste management, and misuse of nuclear materials. Based on conceptual designs of Tokamak fusion reactors with stainless steel structure and tritium inventories of 10 kg per thermal gigawatt, the apparent advantage of fusion is 1 to 2 orders of magnitude in most indices of radiological hazards. Fusion's advantage is 2 to 5 orders of magnitude in comparing damage potential of intentional airborne dispersal of tritium and plutonium, and nonexistent in comparing medium-term radwaste hazard potential (1000 to 100,000 years) and intentional waterborne dispersal of tritium and plutonium. Fusion appears to have some qualitative advantages with respect to accident pathways and safeguards considerations. Fusion has the theoretical potential for improvements of 1 to 2 additional orders of magnitude in short-term BHPs and 3 orders of magnitude and more in radwaste BHPs after 10 years if vanadium-titanium alloy can be used in place of stainless steel in the reactor structure. Other important unresolved questions are how much the inventory of tritium can be reduced by ingenious design, and what fraction of a fusion reactor's activation products …
Date: October 15, 1976
Creator: Holdren, J. P.
Object Type: Article
System: The UNT Digital Library
CTR plasma engineering studies. Progress report, 1 September 1975--30 Jun 1976 (open access)

CTR plasma engineering studies. Progress report, 1 September 1975--30 Jun 1976

During the past contract period, this research has been concerned with three principal tasks, namely: (1) Fusion-product studies. The primary objective of this work is to study potential effects (e.g. instabilities, changes in heating profile and wall loadings, etc.) caused by high-energy fusion products. A second objective is to establish the operating conditions and measurements required for use of D-/sup 3/He in early experiments such as TFTR to simulate D-T burns. (2) Mirror system studies. The objective of this work is to provide specialized support for the mirror research and development effort at the Lawrence Livermore Laboratory. Three topics are under study: charge-exchange losses during neutral beam injection; the dynamics of plasma build-up during start-up; new approaches to mirror systems such as the ''twin-beam'' mirror. (3) Exploratory studies. Several new studies have been initiated during this period. These include: extension of the mirror neutral-beam injection studies to toroidal geometry and preliminary studies of reversed field configurations. Further details about each of these areas are contained in subsequent sections.
Date: April 15, 1976
Creator: Miley, G. H.
Object Type: Report
System: The UNT Digital Library
Solar pilot plant, phase I. Quarterly report No. 4, July--September 1976 (open access)

Solar pilot plant, phase I. Quarterly report No. 4, July--September 1976

The technical and economic feasibility of generating electricity from solar energy is being studied. Collector experiments included heliostat tests. Hardware preparation and assembly constituted the steam generator work. The thermal storage subsystem research experiment, which featured thermal energy storage in a sodium nitrite/sodium hydroxide phase-change mixture, was discontinued. Analytical and design work on the electrical generation subsystem and plant integration progressed satisfactorily. (MHR)
Date: January 15, 1977
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Atmospheric dispersion and noise propagation at Imperial Valley Geothermal Fields (open access)

Atmospheric dispersion and noise propagation at Imperial Valley Geothermal Fields

Quantitative estimations are made for the atmospheric dispersion of gases, heat, and noise due to geothermal energy sources in Southern California's Imperial Valley. In particular, gas concentration per unit source strength, change in mixing ratio, relative humidity, temperature, and the ratio of heat flux to solar constant are calculated. The possibility of atmospheric refraction of source noise is also considered.
Date: April 15, 1976
Creator: Kelly, R. E.
Object Type: Report
System: The UNT Digital Library
Inborn anemias in mice. Progress report to accompany twenty-first renewal proposal, 1 May 1975--30 April 1976 (open access)

Inborn anemias in mice. Progress report to accompany twenty-first renewal proposal, 1 May 1975--30 April 1976

Progress is reported on studies on hereditary anemias of mice. At present under study are four macrocytic anemias, four hemolytic anemias, nonhemolytic microcytic anemia, transitory siderocytic anemia, sex-linked iron-transport anemia, and the autoimmune hemolytic anemia of NZB. Each of these blood dyscrasias is caused by the action of a unique mutant gene, each of which determines the structure of different intracellular molecules, and thus controls a different metabolic process. Thus our wide range of different hereditary anemias has considerable potential for uncovering many different aspects of hemopoietic homeostatic mechanisms in the mouse.
Date: May 15, 1976
Creator: Russell, E. S. & Bernstein, S. E.
Object Type: Report
System: The UNT Digital Library