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966 Matching Results
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Trends in the Finfish Landings by Sport Boat Fisherman in Texas Marine Waters, May 1974-May 1985
Report on study of private-boat fishermen, including their catches and comparisons with previous years to note changes over time.
Date:
1986
Creator:
Osburn, Hal R. & Ferguson, Maury O.
Object Type:
Report
System:
The Portal to Texas History
Earthquake analyses for structural definition and material characteristics of the Mono Craters and Long Valley magma systems. Volume 1. Final report
This report presents the results of research undertaken to increase understanding of the tectonic and magmatic processes occurring in the Long Valley and Mono Craters regions of California. The studies performed were of four different types. The first were based on a seismic data collection effort carried out at Long Valley. Both reflected and screened arrivals were searched for with essentially negative results. The second category of investigations carried out were intensive studies of important large earthquakes that have occurred in the Long Valley region. Some evidence indicates that, rather than being caused by slip on a fault plane, they were caused by magma injection. The third types of studies involved statistical analyses of seismicity data. The final studies involved the development of some important new theoretical methods for modeling the effects of screening bodies, such as magma bodies, on three dimensional wave fields.
Date:
January 1, 1986
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Characterization and evaluation of washability of Alaskan coals: Fifty selected seams from various coal fields: Final technical report, September 30, 1976-February 28, 1986. [50 coal seams]
This final report is the result of a study initiated in 1976 to obtain washability data for Alaskan coals, to supplement the efforts of the US Department of Energy in their ongoing studies on washability of US coals. Washability characteristics were determined for fifty coal samples from the Northern Alaska, Chicago Creek, Unalakleet, Nenana, Matanuska, Beluga, Yentna and Herendeen Bay coal fields. The raw coal was crushed to 1-1/2 inches, 3/8 inch, 14 mesh and 65 mesh top sizes, and float-sink separations were made at 1.30, 1.40 and 1.60 specific gravities. A limited number of samples were also crushed to 200 and 325 mesh sizes prior to float-sink testing. Samples crushed to 65 mesh top size were also separated at 1.60 specific gravity and the float and sink products were characterized for proximate and ultimate analyses, ash composition and ash fusibility. 72 refs., 79 figs., 57 tabs.
Date:
September 1, 1986
Creator:
Rao, P.D.
Object Type:
Report
System:
The UNT Digital Library
Migrational Characteristics, Biological Observations, and Relative Survival of Juvenile Salmonids Entering the Columbia River Estuary, 1966-1983, 1985 Final Report of Research.
Natural runs of salmonids in the Columbia River basin have decreased as a result of hydroelectric-dam development, poor land- and forest-management, and over-fishing. This has necessitated increased salmon culture to assure adequate numbers of returning adults. Hatchery procedures and facilities are continually being modified to improve both the efficiency of production and the quality of juveniles produced. Initial efforts to evaluate changes in hatchery procedures were dependent upon adult contributions to the fishery and returns to the hatchery. Procedures were developed for sampling juvenile salmon and steelhead entering the Columbia River estuary and ocean plume. The sampling of hatchery fish at the terminus of their freshwater migration assisted in evaluating hatchery production techniques and identifying migrational or behavioral characteristics that influence survival to and through the estuary. The sampling program attempted to estimate survival of different stocks and define various aspects of migratory behavior in a large river, with flows during the spring freshet from 4 to 17 thousand cubic meters per second (m/sup 3//second).
Date:
April 1, 1986
Creator:
Dawley, Earl M.
Object Type:
Report
System:
The UNT Digital Library
Chemistry of Diagenetically Altered Tuffs at a Potential Nuclear Waste Repository, Yucca Mountain, Nye County, Nevada
The chemistry of diagenetically altered tuffs at a potential nuclear waste repository, Yucca Mountain, Nevada is described. These tuffs contain substantial amounts of zeolites that are highly sorptive of certain radionuclides. Because of their widespread distribution, the zeolitic tuffs could provide important barriers to radionuclide migration. Physical properties of these tuffs and of their constituent zeolites are influenced by their chemical compositions. This study defines the amount of chemical variability within diagenetically altered tuffs and within diagenetic minerals at Yucca Mountain. Zeolitic tuffs at Yucca Mountain formed by diagenetic alteration of rhyolitic vitric tuffs. Despite their similar starting compositions, these tuffs developed compositions that vary both vertically and laterally. Widespread chemical variations were the result of open-system chemical diagenesis in which chemical components of the tuffs were mobilized and redistributed by groundwaters. Alkalies, alkaline earths, and silica were the most mobile elements during diagenesis. The zeolitic tuffs can be divided into three compositional groups: (1) calcium- and magnesium-rich tuffs associated with relatively thin zones of alteration in the unsaturated zone; (2) tuffs in thick zones of alteration at and below the water table that grade laterally from sodic compositions on the western side of Yucca Mountain to calcic compositions on …
Date:
October 1, 1986
Creator:
Broxton, David E.; Warren, Richard G.; Hagan, Roland C. & Luedemann, Gary
Object Type:
Report
System:
The UNT Digital Library
Extending the range of low energy electron diffraction (LEED) surface structure determination: Co-adsorbed molecules, incommensurate overlayers and alloy surface order studied by new video and electron counting LEED techniques
LEED multiple scattering theory is briefly summarized, and aspects of electron scattering with particular significance to experimental measurements such as electron beam coherence, instrument response and phonon scattering are analyzed. Diffuse LEED experiments are discussed. New techniques that enhance the power of LEED are described, including a real-time video image digitizer applied to LEED intensity measurements, along with computer programs to generate I-V curves. The first electron counting LEED detector using a ''wedge and strip'' position sensitive anode and digital electronics is described. This instrument uses picoampere incident beam currents, and its sensitivity is limited only by statistics and counting times. Structural results on new classes of surface systems are presented. The structure of the c(4 x 2) phase of carbon monoxide adsorbed on Pt(111) has been determined, showing that carbon monoxide molecules adsorb in both top and bridge sites, 1.85 +- 0.10 A and 1.55 +- 0.10 A above the metal surface, respectively. The structure of an incommensurate graphite overlayer on Pt(111) is analyzed. The graphite layer is 3.70 +- 0.05 A above the metal surface, with intercalated carbon atoms located 1.25 +- 0.10 A above hollow sites supporting it. The (2..sqrt..3 x 4)-rectangular phase of benzene and carbon …
Date:
November 1, 1986
Creator:
Ogletree, D.F.
Object Type:
Report
System:
The UNT Digital Library
Electric energy savings from new technologies
Purpose of the report is to provide information about the electricity-saving potential of new technologies to OCEP that it can use in developing alternative long-term projections of US electricity consumption. Low-, base-, and high-case scenarios of the electricity savings for ten technologies were prepared. The total projected annual savings for the year 2000 for all ten technologies were 137 billion kilowatt hours (BkWh), 279 BkWh, and 470 BkWh, respectively, for the three cases. The magnitude of these savings projections can be gauged by comparing them to the Department's reference case projection for the 1985 National Energy Policy Plan. In the Department's reference case, total consumption in 2000 is projected to be 3319 BkWh. Thus, the savings projected here represent between 4% and 14% of total consumption projected for 2000. Because approximately 75% of the base-case estimate of savings are already incorporated into the reference forecast, reducing projected electricity consumption from what it otherwise would have been, the savings estimated here should not be directly subtracted from the reference forecast.
Date:
January 1, 1986
Creator:
Moe, R. J.; Harrer, B. J.; Kellogg, M. A.; Lyke, A. J.; Imhoff, K. L. & Fisher, Z. J.
Object Type:
Report
System:
The UNT Digital Library
Fitness-Related Alterations in Blood Pressure Control: The Role of the Autonomic Nervous System
Baroreflex function and cardiovascular responses to lower body negative pressure during selective autonomic blockade were evaluated in endurance exercise trained (ET) and untrained (UT) men. Baroreflex function was evaluated using a progressive intravenous infusion of phenylephrine HCL (PE) to a maximum of 0.12 mg/min. Heart rate, arterial blood pressure, cardiac output and forearm blood flow were measured at each infusion rate of PE. The reduction in forearm blood flow and concomitant rise in forearm vascular resistance was the same for each subject group. However, the heart rate decreases per unit increase of systolic or mean blood pressure were significantly (P<.05) less in the ET subjects (0.91 ± 0.30 versus 1.62 ± 0.28 for UT). During progressive lower body negative pressure with no drug intervention, the ET subjects had a significantly (P<.05) greater fall in systolic blood pressure (33.8 ± 4.8 torr versus 16.7 ± 3.9 torr). However, the change in forearm blood flow or resistance was not significantly different between groups. Blockade of parasympathetic receptors with atropine (0.04 mg/kg) eliminated the differences in response to lower body negative pressure. Blockade of cardiac sympathetic receptors with metoprolol (0.02 mg/kg) did not affect the differences observed during the control test. It was …
Date:
December 1986
Creator:
Smith, Michael Lamar, 1957-
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Electric energy savings from new technologies. Revision 1
Purpose of the report is to provide information about the electricity-saving potential of new technologies to OCEP that it can use in developing alternative long-term projections of US electricity consumption. Low-, base-, and high-case scenarios of the electricity savings for 10 technologies were prepared. The total projected annual savings for the year 2000 for all 10 technologies were 137 billion kilowatt hours (BkWh), 279 BkWh, and 470 BkWh, respectively, for the three cases. The magnitude of these savings projections can be gauged by comparing them to the Department's reference case projection for the 1985 National Energy Policy Plan. In the Department's reference case, total consumption in 2000 is projected to be 3319 BkWh. Because approximately 75% of the base-case estimate of savings are already incorporated into the reference projection, only 25% of the savings estimated here should be subtracted from the reference projection for analysis purposes.
Date:
September 1, 1986
Creator:
Harrer, B. J.; Kellogg, M. A.; Lyke, A. J.; Imhoff, K. L. & Fisher, Z. J.
Object Type:
Report
System:
The UNT Digital Library
Minority and Poor Households: Patterns of Travel and Transportation Fuel Use
This report documents the travel behavior and transportation fuel use of minority and poor households in the US, using information from numerous national-level sources. The resulting data base reveals distinctive patterns of household vehicle availability and use, travel, and fuel use and enables us to relate observed differences between population groups to differences in their demographic characteristics and in the attributes of their household vehicles. When income and residence location are controlled, black (and to a lesser extent, Hispanic and poor) households have fewer vehicles regularly available than do comparable white or nonpoor households; moreover, these vehicles are older and larger and thus have significantly lower fuel economy. The net result is that average black, Hispanic, and poor households travel fewer miles per year but use more fuel than do average white and nonpoor households. Certain other findings - notably, that of significant racial differences in vehicle availability and use by low-income households - challenge the conventional wisdom that such racial variations arise solely because of differences in income and residence location. Results of the study suggest important differences - primarily in the yearly fluctuation of income - between black and white low-income households even when residence location is controlled. …
Date:
May 1, 1986
Creator:
Millar, M.; Morrison, R. & Vyas, A.
Object Type:
Report
System:
The UNT Digital Library
Estimating Residential Water Demand: a Case of Multiple-Part Tariff for Denton, Texas
This paper analyzes the demand for water in case of a multiple-part tariff in Denton, Texas. The model used is developed from Billing & Agthe's model by using the following variables: marginal price, difference variable, tax assessed value, lot size, house size, temperature and rainfall.. The results indicate that temperature has the greatest effect on water demand, since this area is considered to be a very warm area. Also, marginal price seems to have a strong effect on water consumption indicating that customer is well-informed to a change in rate schedule. This test supports the original idea of the previous articles that the coefficient on difference variable and that on income should have the opposite sign. However, this test can not prove that those coefficients should be equal in magnitude, since the proxy of the income variable can not represent the individual monthly income. In addition, this article introduces another variable which can be a proxy of outdoor water use. That is lot size showing the effect on water demand. The last variable used in the model, house size,does not have much effect on water demand and is dropped out in the final model.
Date:
December 1986
Creator:
Wattanakuljarus, Voravit
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Comparison of Trotline Catches on Two Hook Types in the Laguna Madre
Abstract: Circle hooks caught 3.3 times more fish of each species than straight-shank hooks. The proportion of each species caught on circle and straight-shank hooks was similar. Circle hooks caught smaller (younger) red drum and black drum than did straight-shank hooks. Because the circle hooks catch more red drum and back drum, the potential for mortality by hooking fish in locations other than in the lip is as great for circle hooks as it is for straight-shank hooks.
Date:
January 1986
Creator:
McEachron, Lawrence W.; Green, Albert W.; Matlock, Gary C. & Saul, G. E. (Gary Earl), 1949-
Object Type:
Report
System:
The Portal to Texas History
A 360 Year Temperature and Precipitation Record for the Pasco Basin Derived From Tree-Ring Data
None
Date:
August 1, 1986
Creator:
Cropper, J. P.; Fritts, H. C. & Foley, M. G.
Object Type:
Report
System:
The UNT Digital Library
Reported Morbidity and Mortality in Texas Annual Summary: 1985
The report describes morbidity data in 1985 that organized, recorded, and examined on a weekly basis for evidence suggestive of disease trends, including fluctuations in morbidity, seasonal variation, changes in disease distribution, and characteristics of the natural history of endemic, epidemic, or sporadic diseases in Texas
Date:
September 1986
Creator:
Texas. Bureau of Epidemiology.
Object Type:
Report
System:
The Portal to Texas History
Weldon Spring historical dose estimate
This study was conducted to determine the estimated radiation doses that individuals in five nearby population groups and the general population in the surrounding area may have received as a consequence of activities at a uranium processing plant in Weldon Spring, Missouri. The study is retrospective and encompasses plant operations (1957-1966), cleanup (1967-1969), and maintenance (1969-1982). The dose estimates for members of the nearby population groups are as follows. Of the three periods considered, the largest doses to the general population in the surrounding area would have occurred during the plant operations period (1957-1966). Dose estimates for the cleanup (1967-1969) and maintenance (1969-1982) periods are negligible in comparison. Based on the monitoring data, if there was a person residing continually in a dwelling 1.2 km (0.75 mi) north of the plant, this person is estimated to have received an average of about 96 mrem/yr (ranging from 50 to 160 mrem/yr) above background during plant operations, whereas the dose to a nearby resident during later years is estimated to have been about 0.4 mrem/yr during cleanup and about 0.2 mrem/yr during the maintenance period. These values may be compared with the background dose in Missouri of 120 mrem/yr.
Date:
July 1, 1986
Creator:
Meshkov, N.; Benioff, P.; Wang, J. & Yuan, Y.
Object Type:
Report
System:
The UNT Digital Library
Chemical characterization, leach, and adsorption studies of solidified low-level wastes
Laboratory and field leaching experiments are beig conducted by Pacific Northwest Laboratory (PNL) to investigate the performance of solidified low-level nuclear waste in a typical, arid, near-surface disposal site. Under PNL's Special Waste Form Lysimeters-Arid Program, a field test facility was constructed to monitor the leaching of commercial solidified waste. Laboratory experiments were conducted to investigate the leaching and adsorption characteristics of the waste forms in contact with soil. Liquid radioactive wastes solidified in cement, vinyl ester-styrene, and bitumen were obtained from commercial boiling water and pressurized water reactors, and buried in a field leaching facility on the Hanford site in southeastern Washington State. Batch leaching, soil column adsorption, and soil/waste form column experiments were conducted in the laboratory, using small-scale cement waste forms and Hanford site ground water. The purpose of these experiments is to evaluate the ability of laboratory leaching tests to predict leaching under actual field conditions and to determine which mechanisms (i.e., diffusion, solubility, adsorption) actually control the concentration of radionuclides in the soil surrounding the waste form. Chemical and radionuclide analyses performed on samples collected from the field and laboratory experiments indicate strong adsorption of /sup 134,137/Cs and /sup 85/Sr onto the Hanford site sediment. …
Date:
December 1, 1986
Creator:
Walter, M. B.; Serne, R. J.; Jones, T. L. & McLaurine, S. B.
Object Type:
Report
System:
The UNT Digital Library
Review of storage battery system cost estimates
Cost analyses for zinc bromine, sodium sulfur, and lead acid batteries were reviewed. Zinc bromine and sodium sulfur batteries were selected because of their advanced design nature and the high level of interest in these two technologies. Lead acid batteries were included to establish a baseline representative of a more mature technology.
Date:
April 1, 1986
Creator:
Brown, D. R. & Russell, J. A.
Object Type:
Report
System:
The UNT Digital Library
Limnological and Fisheries Studies of the St. Marys River, Michigan, in Relation to Proposed Extension of the Navigation Season, 1982 and 1983, Volume 1 - Main Report
Report that contains "quantitative and qualitative limnological and biological data from the St. Marys River to help assess environmental impacts from proposed navigation season extension activities." (p. xiv)
Date:
January 1986
Creator:
Liston, Charles R. & McNabb, Clarence D.
Object Type:
Report
System:
The UNT Digital Library
Beef Cattle Research in Texas: 1986
Consolidated progress report providing a summary of research conducted at the experiment station during the prior year related to beef cattle, including: reproduction, care, and meats.
Date:
December 1986
Creator:
Texas Agricultural Experiment Station
Object Type:
Report
System:
The Portal to Texas History
Sheep and Goat, Wool and Mohair: 1986
Consolidated progress report providing a summary of research conducted at the experiment station during the prior year related to raising and breeding sheep and goats, including: increase reproductive efficiency, decrease predation losses, reduce impact of toxic and harmful plant problems, improve prevention and control of infectious diseases, increase adaptability and productivity under prevailing conditions, increase economic efficiency of forage and feed utilization, increase fiber production, quality, and value, improve consumer acceptability of sheep and goat meat, improve prevention and control of internal and external parasites, and finally develop decision aids for optimal production systems.
Date:
September 1986
Creator:
Texas Agricultural Experiment Station
Object Type:
Report
System:
The Portal to Texas History
Fuel performance annual report for 1984. Volume 2
This annual report, the seventh in a series, provides a brief description of fuel performance during 1984 in commercial nuclear power plants. Brief summaries of fuel design changes, fuel surveillance programs, fuel operating experience, fuel problems, high-burnup fuel experience, and items of general significance are provided. References to additional, more detailed information and related NRC evaluations are included. 279 refs., 11 figs., 29 tabs.
Date:
March 1, 1986
Creator:
Bailey, W.J. & Dunenfeld, M.S.
Object Type:
Report
System:
The UNT Digital Library
Statistical Supplement to the Texas College and University System Coordinating Board Annual Report: 1985
Statistical report about various data collected on Texas state colleges and universities during fiscal year 1985 such as enrollment, faculty, credit hours, facilities, state appropriations, and student loans.
Date:
January 1986
Creator:
Coordinating Board, Texas College and University System
Object Type:
Report
System:
The Portal to Texas History
Comparison of three-jet and radiative two-jet events in electron-positron annihilation at 29 GeV
By comparing 3-jet (e/sup +/e/sup -/ ..-->.. q anti q g) and radiative 2-jet (e/sup +/e/sup -/ ..-->.. q anti q ..gamma..) events from electron-positron annihilation, we have studied the local and global effects of the presence of a hard bremsstrahlung gluon in hadronic events. Detector and event selection efficiencies and biases affect these two kinds of events almost equally because they have very similar kinematics and topologies. Accurate comparisons of q anti q g and q anti q ..gamma.. events can therefore be made. Globally, we observe a depletion of hadrons in q anti q g events relative to q anti q ..gamma.. events on the opposite side of the event plane from the gluon, in the angular region between the q and anti q jets. This depletion is shown to be in agreement with the predictions of Quantum Chromodynamics (QCD). The existence of this effect demonstrates that the presence of a gluon significantly alters the color forces and hence the fragmentation process in hadronic events. We also use these q anti q ..gamma.. and q anti q g events to compare low energy (4.5 GeV) gluon and quark jets. Our data indicate that gluon jets have softer x/sub …
Date:
November 1, 1986
Creator:
Sheldon, P. D.
Object Type:
Report
System:
The UNT Digital Library
Patterns of fish assemblage structure and dynamics in waters of the Savannah River Plant. Comprehensive Cooling Water Study final report
Research conducted as part of the Comprehensive Cooling Water Study (CCWS) has elucidated many factors that are important to fish population and community dynamics in a variety of habitats on the Savannah River Plant (SRP). Information gained from these studies is useful in predicting fish responses to SRP operations. The overall objective of the CCWS was (1) to determine the environmental effects of SRP cooling water withdrawals and discharges and (2) to determine the significance of the cooling water impacts on the environment. The purpose of this study was to: (1) examine the effects of thermal plumes on anadromous and resident fishes, including overwintering effects, in the SRP swamp and associated tributary streams; (2) assess fish spawning and locate nursery grounds on the SRP; (3) examine the level of use of the SRP by spawning fish from the Savannah River, this objective was shared with the Savannah River Laboratory, E.I. du Pont de Nemours and Company; and (4) determine impacts of cooling-water discharges on fish population and community attributes. Five studies were designed to address the above topics. The specific objectives and a summary of the findings of each study are presented.
Date:
June 1, 1986
Creator:
Aho, J. M.; Anderson, C. S.; Floyd, K. B.; Negus, M. T. & Meador, M. R.
Object Type:
Report
System:
The UNT Digital Library