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1,896 Matching Results
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[California Crossing]
Photograph of driftwood floating down a river.
Date:
December 5, 1977
Creator:
Dallas (Tex.)
Object Type:
Photograph
System:
The Portal to Texas History
[California Crossing]
Photograph of a body of water surrounded by concrete. Driftwood floats downstream. The water is surrounded by trees.
Date:
December 2, 1977
Creator:
Dallas (Tex.)
Object Type:
Photograph
System:
The Portal to Texas History
[California Crossing]
Photograph of a body of water surrounded by trees.
Date:
November 1977
Creator:
Dallas (Tex.)
Object Type:
Photograph
System:
The Portal to Texas History
[California Crossing]
Photograph of driftwood floating down a river.
Date:
November 1977
Creator:
Dallas (Tex.)
Object Type:
Photograph
System:
The Portal to Texas History
[California Crossing]
Photograph of a body of water in which driftwood is floating.
Date:
November 1977
Creator:
Dallas (Tex.)
Object Type:
Photograph
System:
The Portal to Texas History
[California Crossing]
Photograph of a river in which driftwood is floating.
Date:
November 1977
Creator:
Dallas (Tex.)
Object Type:
Photograph
System:
The Portal to Texas History
[California Crossing]
Photograph of a body of water.
Date:
November 1977
Creator:
Dallas (Tex.)
Object Type:
Photograph
System:
The Portal to Texas History
[California Crossing]
Photograph of a river. Driftwood is being pulled downward.
Date:
November 1977
Creator:
Dallas (Tex.)
Object Type:
Photograph
System:
The Portal to Texas History
[Aerial of California Crossing]
Aerial photograph of a body of water surrounded by trees.
Date:
November 28, 1977
Creator:
Dallas (Tex.)
Object Type:
Photograph
System:
The Portal to Texas History
[California Crossing, Minimal Flow]
Photograph of a body of water. Driftwood is floating downstream.
Date:
November 28, 1977
Creator:
Dallas (Tex.)
Object Type:
Photograph
System:
The Portal to Texas History
[California Crossing Above Dam]
Photograph of a river surrounded on either side by trees. Near the middle of the image, there appears to be a dam across the river, made of sticks and natural materials. Handwritten text on the back of the photograph says: "California Crossing 11-77,Looking Downstream From Above Dam."
Date:
November 1977
Creator:
Dallas (Tex.)
Object Type:
Photograph
System:
The Portal to Texas History
[California Crossing at 11:25 am]
Photograph of a body of water with minimal flow at 11:25 am.
Date:
November 28, 1977
Creator:
Dallas (Tex.)
Object Type:
Photograph
System:
The Portal to Texas History
Electrical load management for the California water system
To meet its water needs California has developed an extensive system for transporting water from areas with high water runoff to areas with high water demand. This system annually consumes more than 6 billion kilowatt hours (kWh) of electricity for pumping water and produces more than 12 billion kWh/year of hydroelectric power. From the point of view of energy conservation, the optimum operation of the California water supply system would require that pumping be done at night and generation be done during the day. Night pumping would reduce electric power peak load demand and permit the pumps to be supplied with electricity from ''base load'' generating plants. Daytime hydro power generation would augment peak load power generation by fossil-fuel power plants and save fuel. The technical and institutional aspects of this type of electric power load management for water projects are examined for the purpose of explaining some of the actions which might be pursued and to develop recommendations for the California Energy Resources Conservation and Development Commission (ERCDC). The California water supply system is described. A brief description is given of various energy conservation methods, other than load management, that can be used in the management of water resources. …
Date:
July 1, 1977
Creator:
Krieg, B.; Lasater, I. & Blumstein, C.
Object Type:
Report
System:
The UNT Digital Library
Distributed Technologies in California's Energy Future. Volume I
This interim report contains eight of the eighteen chapters included in the complete report. In Chapter I, pertinent data, facts, and observations are made following an initial summary. Chapter II is an introduction, citing especially the writings of Amory Lovins. The criteria used in defining distributed systems, suggested by Lovins, are that the technologies be renewable, environmentally benign, local, subject to graceful failure, foolproof, flexible, comprehensible, and matched in energy quality. The following chapters are: The Energy Predicament; The California Setting; Energy Resources for California's Future; Alternative Energy Futures for California; Issues and Problems; and Directions for Future Work. Six appendices deal with residential heating loads and air conditioning, allocations, co-generation, population projections, and the California wind energy resource. (MCW)
Date:
September 1, 1977
Creator:
Christensen, M.; Craig, P.; McGuire, C. B. & Simmons, M.
Object Type:
Report
System:
The UNT Digital Library
Geothermal environmental studies, Heber Region, Imperial Valley, California. Environmental baseline data acquisition. Final report
The Electric Power Research Institute (EPRI) has been studying the feasibility of a Low Salinity Hydrothermal Demonstration Plant as part of its Geothermal Energy Program. The Heber area of the Imperial Valley was selected as one of the candidate geothermal reservoirs. Documentation of the environmental conditions presently existing in the Heber area is required for assessment of environmental impacts of future development. An environmental baseline data acquisition program to compile available data on the environment of the Heber area is reported. The program included a review of pertinent existing literature, interviews with academic, governmental and private entities, combined with field investigations and meteorological monitoring to collect primary data. Results of the data acquisition program are compiled in terms of three elements: the physical, the biological and socioeconomic settings.
Date:
February 1, 1977
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Magnitude and Frequency of Floods in California
From purpose and scope: This report describes methods for evaluating the magnitude and frequency of floods at gaged and (or) ungaged sites in California. The purpose is to provide a base for the study of floods and the review and extension of flood magnitude-frequency relations by agencies and individuals who are concerned with the management and control of floods, highway construction, and other related work.
Date:
June 1977
Creator:
Waananen, A. O. & Crippen, J. R.
Object Type:
Report
System:
The UNT Digital Library
Distribution of Nitrate in Ground Water Redlands, California
Report and geographical survey. This report examines the distribution of nitrates in the Redland area's ground water and concludes that this distribution depends primarily upon depth below the water table and areal location. Includes several maps and figures.
Date:
March 1977
Creator:
Eccles, Lawrence A. & Bradford, Wesley L.
Object Type:
Report
System:
The UNT Digital Library
Endangered plant species of the Nevada Test Site, Ash Meadows, and Central-Southern Nevada
A total of 15 vascular plant taxa, currently appearing on the Endangered Species list, occur in southern Nye County, Nevada, and/or adjacent Inyo County, California. It is the purpose of this report to record in detail the locations of the plant collections upon which the distributions are based, and other information relevant to their status as Endangered Species, and to recommend the areas to be designated critical habitats.
Date:
February 1, 1977
Creator:
Beatley, J. C.
Object Type:
Report
System:
The UNT Digital Library
Proceedings of the ERDA Semiannual Solar Photovoltaic Program Review Meeting, Silicon Technology Programs Branch
Each paper was separately processed for the Energy Data Base. (DG)
Date:
January 1, 1977
Creator:
unknown
Object Type:
Article
System:
The UNT Digital Library
Systems management support for ERCDC study of undergrounding and berm containment. Interim report. Preliminary program assessment and follow-on program development
Interim results of a study being conducted with respect to the technological aspects of the costs and benefits of underground nuclear power plant construction in direct support of the California Energy Commission's legislative mandate in this area are presented. The program was directed towards problem scoping, methodology evaluation, program definition and planning for subsequent, more detailed investigations of underground facility designs and their potential advantages and disadvantages. The material presented describes the results of (a) systems analyses which were conducted to determine logical requirements for determination of those elements of a nuclear power plant which should be constructed underground; (b) bounding estimates of incremental plant costs for a variety of underground concepts; (c) applicable prior experience in underground facility design and construction which could be used to identify potential sources of strength and weaknessees of underground nuclear power plants; (d) estimates of seismic environments for underground construction in California; (e) preliminary descriptions of underground reactor accident scenarios; (f) bounding estimates of the consequences of such accidents, in terms of comparisons of relative emissions of radioactivity with respect to similar accidents for surface-sited nuclear power plants and (g) results of analyses of several other important technological aspects of the problem. A …
Date:
August 1, 1977
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Value distribution assessment of geothermal development in Lake County, CA
A value distribution assessment is defined as the determination of the distribution of benefits and costs of a proposed or actual development, with the intent of comparing such a development with alternative plans. Included are not only the social and economic effects, but also people's perceptions of their roles and how they are affected by the proposed or actual development. Discussion is presented under the following section headings: on morality and ethics; the vanishing community; case study of pre-development planning--Lake County; methodology for research; Lake County geothermal energy resource; decision making; Planning Commission hearing; communication examples; benefit tracing; response to issues raised by the report of the State Geothermal Task Force; and, conclusions and recommendations. (JGB)
Date:
October 1, 1977
Creator:
Churchman, C.W.; Nelson, H.G. & Eacret, K.
Object Type:
Report
System:
The UNT Digital Library
Hot dry rock geothermal energy: status of exploration and assessment. Report No. 1 of the hot dry rock assessment panel
The status of knowledge of attempts to utilize hot dry rock (HDR) geothermal energy is summarized. It contains (1) descriptions or case histories of the ERDA-funded projects at Marysville, MT, Fenton Hill, NM, and Coso Hot Springs, CA; (2) a review of the status of existing techniques available for exploration and delineation of HDR; (3) descriptions of other potential HDR sites; (4) definitions of the probable types of HDR resource localities; and (5) an estimate of the magnitude of the HDR resource base in the conterminous United States. The scope is limited to that part of HDR resource assessment related to the determination of the extent and character of HDR, with emphasis on the igneous-related type. It is estimated that approximately 74 Q (1 Q = 1,000 Quads) of heat is stored in these sites within the conterminous U.S. at depths less than 10 km and temperatures above 150/sup 0/C, the minimum for power generation. (Q = 10/sup 18/ BTU = 10/sup 21/J; the total U.S. consumption for 1972 was approximately 0.07 Q). Approximately 6300 Q are stored in the conduction-dominated parts of the crust in the western U.S. (23% of the total surface area), again at depths less than …
Date:
June 1, 1977
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Calculation of transport coefficients in an axisymmetric plasma
A method of calculating the transport coefficient in an axisymmetric toroidal plasma is presented. This method is useful in calculating the transport coefficients in a Tokamak plasma confinement device. The particle density and temperature are shown to be a constant on a magnetic flux surface. Transport equations are given for the total particle flux and total energy flux crossing a closed toroidal surface. Also transport equations are given for the toroidal magnetic flux. A computer code was written to calculate the transport coefficients for a three species plasma, electrons and two species of ions. This is useful for calculating the transport coefficients of a plasma which contains impurities. It was found that the particle and energy transport coefficients are increased by a large amount, and the transport coefficients for the toroidal magnetic field are reduced by a small amount.
Date:
January 1977
Creator:
Shumaker, Dana E.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
I. Low frequency noise in metal films at the superconducting transition. II. Resistance of superconductor - normal metal- superconductor sandwiches and the quasiparticle relaxation time
Measurements of the noise power spectra of tin and lead films at the superconducting transition in the frequency range of 0.1 Hz to 5k Hz are reported. Two types of samples were made. Type A were evaporated directly onto glass substrate, while Type B were evaporated onto glass or sapphire substrate with a 50A aluminum underlay. The results were consistent with a thermal diffusion model which attributes the noise to the intrinsic temperature fluctuation in the metal film driven with a random energy flux source. In both types of metal films, the noise power was found to be proportional to (V-bar)/sup 2/ ..beta../sup 2//..cap omega.., where V-bar was the mean voltage across the sample, ..beta.. was the temperature coefficient of resistance and ..cap omega.. was the volume of the sample. Correlation of noises in two regions of the metal film a distance d apart was detected at frequencies less than or = D/..pi..d/sup 2/. A possible explanation of the noises using quantitative boundary conditions and implications of this work for device applications are discussed. Theoretical and experimental investigation are reported on the resistance of superconductor-normal metal-superconductor sandwiches near T/sub c/. The increase in SNS resistance is attributed to the penetration …
Date:
July 1, 1977
Creator:
Hsiang, T.Y.
Object Type:
Report
System:
The UNT Digital Library