Hydrogen engine performance analysis project. Quarterly report (open access)

Hydrogen engine performance analysis project. Quarterly report

The objective of this project is to address the problems identified in order to obtain the data-base covering performance, operational characteristics and emissions essential for making a rational decision regarding the selection and design of prototype hydrogen-fueled, air-breathing engines capable of being manufactured for general automotive use. The project program plan calls for investigation of pre-intake valve closing fuel ingestion (Pre IVC) hydrogen-fueled engines during the first two of the three year project. With Pre IVC engines the fuel is introduced into the combustion chamber prior to closing of the intake valve. This is in contrast to Post IVC engines in which fuel is introduced in the cylinder after the intake valve closes. Post IVC engines are to be investigated during the third year according to the project program plan. This quarterly report is a summary of the work accomplished during the first three months of the project.
Date: March 1, 1977
Creator: Adt, R.R. Jr. & Swain, M.R.
Object Type: Report
System: The UNT Digital Library
Hydrogen engine performance analysis project. Quarterly report (open access)

Hydrogen engine performance analysis project. Quarterly report

The objective of this project is to address the problems identified in the literature and in the project proposal in order to obtain the data-base covering performance, operational characteristics and emissions essential for making a rational decision regarding the selection and design of prototype hydrogen-fueled, air-breathing engines capable of being manufactured for general automotive use. The project program plan calls for investigation of pre-intake valve closing fuel ingestion (Pre IVC) hydrogen-fueled engines during the first two of the three year project. With Pre IVC engines the fuel is introduced into the combustion chamber prior to closing of the intake valve. This is in contrast to Post IVC engines in which fuel is introduced in the cylinder after the intake valve closes. Post IVC engines are to be investigated during the third year according to the project program plan. This quartery report is a summary of the work accomplished during the first three months of the project. For completeness it contains information presented in the first two monthly reports.
Date: March 1, 1977
Creator: Adt, Robert R., Jr.; Swain, Michael R. & Pappas, John M.
Object Type: Report
System: The UNT Digital Library
ACTVE News, Volume 8, Number 2, March 1977 (open access)

ACTVE News, Volume 8, Number 2, March 1977

Newsletter issued by the Advisory Council for Technical-Vocational Education in Texas discussing news, events, and other relevant information related to technical and vocational education for adults in Texas.
Date: March 1977
Creator: Advisory Council for Technical-Vocational Education in Texas
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Residual bouguer gravity anomaly map of northern New Mexico (open access)

Residual bouguer gravity anomaly map of northern New Mexico

The map is computer contoured from equidistant grid and bicubic spline interpolated surface. Bouguer gravity anomaly correction applied is g/sub BC/ = (0.034) x (elevation - regional elevation), with density 2.67 g/cc. Overall dimensions are 41/sup 1///sub 2/'' x 43''; scale is 1 : 500,000. (JGB)
Date: March 1, 1977
Creator: Aiken, C. L. V.; Laughlin, A. W. & West, F. G.
Object Type: Report
System: The UNT Digital Library
Development of a unified transport approach for the assessment of power-plant impact. [Environmental impact of chemical, biological, radioactive, or thermal effluents from power plants] (open access)

Development of a unified transport approach for the assessment of power-plant impact. [Environmental impact of chemical, biological, radioactive, or thermal effluents from power plants]

Progress during the first 18 months in implementation of the Unified Transport Approach (UTA) is summarized in this report, which covers the period through December 1976. The goal of this project is to develop mathematical models for fast-transient, one-and two-dimensional transport of thermal, radiological, chemical, and biological properties in rivers, estuaries, lakes, and coastal regions for assessing the impact of power-plant operations. Development and validation of these models are illustrated in applications at several sites where data is available. The models include submodels for sediment transport, exchange of a soluble isotope with sediment, and zone-matching models to connect near-field problems of reentrainment and recirculation with far-field convective transport. Several types of automated data preparation have been introduced, and the codes have been designed to allow input of specified plant operating conditions for given durations. The UTA provides a common basis for calculating the transport of intensive quantities that depend on basic flow properties, which can be obtained from a common set of data for geometry, bathymetry, and meteorology that must be prepared only once. The formulation and calculation are based on a stable set of algorithms that have been tested and proven valid. The user can then focus on understanding …
Date: March 1, 1977
Creator: Akin, E. J.; Barton, J. M. & Bledsoe, J. L.
Object Type: Report
System: The UNT Digital Library
Bound state momentum distributions. [PWiA] (open access)

Bound state momentum distributions. [PWiA]

Proposed forms for nuclear momentum distributions are investigated. Calculations of (p,p') reactions using those forms are done in a PWIA at angles where the quasielastic peak is seen and also at back angles. The parameters used are derived from (e,e') data, where the nuclear momenta probed overlap with those of the low angle (p,p') experiment. Although there is reasonable agreement for the (p,p') data at 180/sup 0/, the inclusion of distortion necessitates a different parameter set to obtain agreement for the quasifree process. It is concluded that the (p,p') reaction cannot be readily understood with a simple momentum distribution.
Date: March 1, 1977
Creator: Alexander, Y.; Redish, E. F & Wall, N. S.
Object Type: Report
System: The UNT Digital Library
Evaluation of extraction chromatography for americium recovery (open access)

Evaluation of extraction chromatography for americium recovery

Extraction, or reverse-phase partition chromatography, as used mostly for analytical separations, employs an organic solvent extractant as a stationary phase on an inert support material. This technique, which has the advantage of utilizing the versatility of solvent extraction systems with the less expensive operation of ion exchange equipment, was evaluated for a process to recover low level concentrations of americium from acidic process waste streams at Rocky Flats. The bidentate organophosphorous extractant DHDECMP (dihexyl-N, N-diethylcarbamylmethylene phosphonate) was used as the stationary phase since it was shown to effectively scavenge americium from acidic waste streams without significantly extracting impurity ions. Over 30 support materials were evaluated for DHDECMP capacity and for their ability to retain the extractant. Of the supports tested, the Amberlite XAD macroreticular sorbents were found to have the highest DHDECMP capacity. Amberlite XAD-4 beads retained the extractant significantly better than the other supports evaluated. Thus, this solvent was tested for americium breakthrough capacity and compared to the theoretical capacity.
Date: March 23, 1977
Creator: Alford, C. E. & Navratil, J. D.
Object Type: Report
System: The UNT Digital Library
Right-to-work Laws, Issue Brief Number IB77016 (open access)

Right-to-work Laws, Issue Brief Number IB77016

This report includes Right-to-Work Laws.
Date: March 7, 1977
Creator: Alice, Ahmuty
Object Type: Report
System: The UNT Digital Library
Acceleration of partially stripped ions at the Bevalac (open access)

Acceleration of partially stripped ions at the Bevalac

Results are presented of the first attempts to accelerate partially stripped heavy ions in the Bevatron. Experiments were performed for hydrogen-like argon and neon ions, and, although the survival time of these ions in the 10/sup -7/ torr Bevatron vacuum was not sufficient to achieve full energy, valuable charge-changing cross section information was obtained.
Date: March 1, 1977
Creator: Alonso, J.; Force, R.; Tekawa, M. & Grunder, H.
Object Type: Article
System: The UNT Digital Library
Reliability and safety program plan outline for the operational phase of a waste isolation facility (open access)

Reliability and safety program plan outline for the operational phase of a waste isolation facility

A Reliability and Safety Program plan outline has been prepared for the operational phase of a Waste Isolation Facility. The program includes major functions of risk assessment, technical support activities, quality assurance, operational safety, configuration monitoring, reliability analysis and support and coordination meetings. Detailed activity or task descriptions are included for each function. Activities are time-phased and presented in the PERT format for scheduling and interactions. Task descriptions include manloading, travel, and computer time estimates to provide data for future costing. The program outlined here will be used to provide guidance from a reliability and safety standpoint to design, procurement, construction, and operation of repositories for nuclear waste. These repositories are to be constructed under the National Waste Terminal Storage program under the direction of the Office of Waste Isolation, Union Carbide Corp. Nuclear Division.
Date: March 28, 1977
Creator: Ammer, H. G. & Wood, D. E.
Object Type: Report
System: The UNT Digital Library
Sodium tungsten bronze thin films by rf sputtering (open access)

Sodium tungsten bronze thin films by rf sputtering

Polycrystalline Na/sub x/WO/sub 3/ films were produced by rf sputtering. Films of low x-value resulted when co-sputtering WO/sub 3/ on a Na/sub 0.83/WO/sub 3/ target, and Na/sub 0/./sub 83/ on WO/sub 3/ target. Films of high x and of mixed phase were produced by sputtering a powder mixture of Na/sub 2/WO/sub 4/ and WO/sub 3/ on a tungsten target. Of the sputtering parameters studied, the substrate temperature is the most critical with temperatures above 500/sup 0/C producing films which were cubic in structure with only a small amount of Tetragonal I. The presence of oxygen up to 3 percent by volume had minimal effect on film quality or x-value. Auger, electron microprobe, SIMS, SEM, x-ray diffraction, and sheet resistivity techniques were used in characterizing these films. Resistivity of the films was a factor of 10 higher than the bulk crystalline data for Na/sub 0/./sub 83/WO/sub 3/.
Date: March 1, 1977
Creator: Anderegg, J. W.
Object Type: Report
System: The UNT Digital Library
Ground Water in the Lajas Valley, Puerto Rico (open access)

Ground Water in the Lajas Valley, Puerto Rico

Abstract: Lajas Valley is plagued with problems of salinity and waterlogging the soils. Use of brackish (500 milligrams per liter) irrigation compounded ground water for the problem until an irrigation-drainage system was constructed in 1955. Lajas is an alluvium-filled limestone highlands. The alluvium, mostly clay and as much 300 feet (90 meters) thick, contains brackish ground water except in the recharge areas located along the foothills...Results from a digital model show that a network of discharge wells could alleviate waterlogging of the soils in the artesian area.
Date: March 1977
Creator: Anderson, Henry R.
Object Type: Report
System: The UNT Digital Library
Laboratory and field studies on the long-term effects of petroleum hydrocarbons on benthic marine invertebrates (open access)

Laboratory and field studies on the long-term effects of petroleum hydrocarbons on benthic marine invertebrates

Present and future activities associated with petroleum necessitate research on the potential impacts of oil in the Pacific Northwest marine environment. While the results of recent studies on the fate and effects of petroleum hydrocarbons (PHC) in the marine environment have strengthened our understanding of some aspects of oil pollution, we are not yet to the point at which an accurate prediction of the effects of acute or chronic oil inputs can be made. In order to more clearly define the potential for petroleum to exert significant long-term environmental effects in marine sediments, studies on the fate of crude oil in sediments are being conducted. These studies are interdisciplinary, involving aspects of physical organic chemistry, marine biology, and microbiology. The principal objectives of these studies are to determine the rates and mechanisms of degradation of petroleum in the marine environment, to determine which component types are persistent, and to correlate such information, where possible, with observed effects on marine biota. Preliminary results of studies of hydrocarbon uptake from sediment by benthic organisms are included.
Date: March 1, 1977
Creator: Anderson, J W; Riley, R; Bean, R M; Blaylock, J W & Kiesser, S L
Object Type: Article
System: The UNT Digital Library
Cesium--tungsten cathode for surface production of D/sup -/ (open access)

Cesium--tungsten cathode for surface production of D/sup -/

In the next generation of neutral beam systems for fusion, beam energy and efficiency requirements will go up, and high current D/sup -/ sources will be needed. The purpose of this note is to examine the problem of maintaining the cathode near its optimun state for the case of the supersonic jet conversion system. (MOW)
Date: March 1, 1977
Creator: Anderson, O. A.
Object Type: Report
System: The UNT Digital Library
Low energy components from charge transfer in neutral beams for fusion (open access)

Low energy components from charge transfer in neutral beams for fusion

The MFTF/TFTR injector system is studied. The LLL double charge exchange system is also studied. The stripping problem in surface-production negative ion systems producing beam energies up to 1000 keV is also investigated. (MOW)
Date: March 1, 1977
Creator: Anderson, O. A.
Object Type: Report
System: The UNT Digital Library
Summary report: an exploratory study of cost targets for solar electric power plants (open access)

Summary report: an exploratory study of cost targets for solar electric power plants

A preliminary evaluation was made of the economic goals that need to be achieved in the solar-electric R and D and demonstration programs so that solar can become a viable component of our national electric energy production system. Solar electric technologies considered are: solar thermal conversion, solar photovoltaic, wind energy conversion, and ocean thermal. Target costs were developed for selected applications of solar by comparison with known means of accomplishing the same end results. The known technologies were assumed to be fossil and nuclear energy sources.
Date: March 1, 1977
Creator: Anderson, T. D.; Bowers, H. I.; Delene, J. G.; Fuller, L. C.; Kaplan, S. I. & Wilson, J. V.
Object Type: Report
System: The UNT Digital Library
Investigations of the inductively coupled plasma source for analyzing NURE water samples at the Los Alamos Scientific Laboratory (open access)

Investigations of the inductively coupled plasma source for analyzing NURE water samples at the Los Alamos Scientific Laboratory

A 3.4-meter direct-reading spectrograph is being used with an inductively coupled plasma source for the simultaneous determination of Ag, Bi, Cd, Cu, Nb, Ni, Pb, Sn, and W in water samples. We have attached a small digital computer to the system in order to obtain intensity data on each element once a second. After the intensities during a run on a sample have stabilized, the computer records the intensity data and outputs the average concentration for each element. To approach the published detection limits, a peristaltic pump must be used to force the water sample into the usual cross-flow nebulizer. We have studied several different nebulizer designs with the goal of improving efficiency and hence sensitivity. One design, the fritted-disk nebulizer, has an efficiency over 60 percent, as compared with the 5 percent efficiency of the original nebulizer.
Date: March 1, 1977
Creator: Apel, C. T.; Bieniewski, T. M.; Cox, L. E. & Steinhaus, D. W.
Object Type: Article
System: The UNT Digital Library
Oak Ridge Geochemical Reconnaissance Program. [For National Uranium Resource Evaluation Program] (open access)

Oak Ridge Geochemical Reconnaissance Program. [For National Uranium Resource Evaluation Program]

The Oak Ridge reconnaissance program is responsible for the geochemical survey in a 12-state area covering Texas, Oklahoma, Kansas, Nebraska, South Dakota, North Dakota, Minnesota, Wisconsin, Michigan, Iowa, Indiana, and Illinois as part of the National Uranium Resource Evaluation Program. The program concept is outlined and the planning and organization of the program is discussed. (JSR)
Date: March 1, 1977
Creator: Arendt, J. W.
Object Type: Article
System: The UNT Digital Library
Environmental Monitoring at Argonne National Laboratory, Annual Report: 1976 (open access)

Environmental Monitoring at Argonne National Laboratory, Annual Report: 1976

Annual report of the environmental monitoring program at Argonne National Laboratory, discussing activities and findings of the group.
Date: March 1977
Creator: Argonne National Laboratory
Object Type: Report
System: The UNT Digital Library
Physics of Reactor Safety, Quarterly Report: October-December 1976 (open access)

Physics of Reactor Safety, Quarterly Report: October-December 1976

Quarterly progress report summarizing work done in Argonne National Laboratory's Applied Physics Division including: reactor safety research and technical coordination of the Reactor Safety Research safety analysis program.
Date: March 1977
Creator: Argonne National Laboratory. Applied Physics Division.
Object Type: Report
System: The UNT Digital Library
Continental Shelf Processes Affecting the Oceanography of the South Atlantic Bight. Annual Report, June 1, 1976--May 31, 1977 (open access)

Continental Shelf Processes Affecting the Oceanography of the South Atlantic Bight. Annual Report, June 1, 1976--May 31, 1977

Progress is reported on studies of the influence of the Gulf Stream on water circulation and nutrient distribution in Onslow Bay off the North Carolina coast and the accumulation of hydrographic data for the South Atlantic Bight between Charleston, South Carolina, and Jacksonville, Florida. A list is included of published papers that report results of the studies in detail. (CH)
Date: March 1, 1977
Creator: Atkinson, L. P.
Object Type: Report
System: The UNT Digital Library
Experimental investigation of retrofit options for mobile homes (open access)

Experimental investigation of retrofit options for mobile homes

A mobile home located (outdoors) in Oak Ridge, Tennessee, was tested to determine its energy-use characteristics for both space heating and cooling. The main objective was to determine the energy savings that can be achieved by the addition of retrofit items such as storm windows, skirting, and extra insulation and how these savings vary with weather conditions. Analyses of space heating data show that energy savings approaching 50 percent can be achieved, but analyses of space cooling data were inconclusive.
Date: March 3, 1977
Creator: Ball, S. J.
Object Type: Report
System: The UNT Digital Library
Nucleation and dynamics of vortices in type-II superconductors (open access)

Nucleation and dynamics of vortices in type-II superconductors

The one- and two-dimensional Ginzburg-Landau equations are numerically integrated in a slab geometry, which is appropriate for comparison to experimental work done on films. When two-dimensional variations become energetically favorable, a vortex is found to nucleate and move to the center of the film with the Gibbs free energy decreasing during the process. An important process by which the energy is lowered during this nucleation procedure is found to be the savings in condensation energy arising from the shrinking size of the vortex core as it moves to the center of the film. The solutions of the Ginzburg-Landau equations are used to explain anomalies observed experimentally in the tunneling characteristics of thin films of PbIn. Excellent agreement between theory and experiment is found with the Ginzburg-Landau equations correctly predicting the field at which flux would first enter the films. We then use the Clem model of an isolated vortex to model vortex nucleation and dynamics under the influence of a transport current. The entry fields predicted by the model are found to be off by almost a factor of two but have the advantage of requiring simple computer programs for their solution, while the Ginzburg-Landau solutions require substantially more numerical …
Date: March 1, 1977
Creator: Balley, R. E.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Automated Approach to Quantitative Error Analysis in Neutron Transport Calculations (open access)

Automated Approach to Quantitative Error Analysis in Neutron Transport Calculations

This report addresses an automated approach to quantitative error analysis in neutron transport calculations.
Date: March 31, 1977
Creator: Bareiss, E. H. & Derstine, K. L.
Object Type: Report
System: The UNT Digital Library