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4 K to 20 K Rotational-Cooling Magnetic Refrigerator Capable of 1-Mw to >1-W Operation
The low-temperature, magnetic entropy of certain single-crystal paramagnetic materials, such as DyPO/sub 4/, changes dramatically as the crystal rotates in a magnetic field. A new magnetic refrigerator design based on the anisotropic nature of such materials is presented. The key advantages of the rotational-cooling concept are (1) a single, rotary motion is required, (2) magnetic field shaping is not a problem because the entire working material is in a constant field, and (3) the refrigerator can be smaller than comparable magnetic refrigerators because the working material is entirely inside the magnet at all times. The main disadvantage of the rotational-cooling concept is that small-dimension single crystals are required.
Date:
February 1, 1980
Creator:
Barclay, J. A.
Object Type:
Report
System:
The UNT Digital Library
15th Street News (Midwest City, Okla.), Vol. 9, No. 11, Ed. 1 Thursday, February 14, 1980
Newspaper from Oscar Rose Junior College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
February 14, 1980
Creator:
Young, Paul
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 9, No. 12, Ed. 1 Thursday, February 28, 1980
Newspaper from Oscar Rose Junior College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
February 28, 1980
Creator:
Young, Paul
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Acoustic agglomeration of power-plant fly ash. A comprehensive semi-annual progress report
Results obtained during the reporting period are presented. The agglomeration of submicron fly ash particles has been studied as a function of sound pressure level, sound frequency, loading, and exposure time. A second generation model of the agglomeration process is being developed. A high-frequency, high-intensity variable speed siren delivering at least 600 W at frequencies up to 4000 Hz has been developed and tested. Details on the design and operation are presented. The agglomeration chamber has been completely cleaned and the aerosol generating system has been rebuilt. A mathematical model of the acoustics of agglomeration is being developed. Preliminary results of computerized electron microscopic scanning of fly ash particles during agglomeration are presented. (DMC)
Date:
February 1, 1980
Creator:
Reethof, G.
Object Type:
Report
System:
The UNT Digital Library
ACTVE News, Volume 11, Number 2, February 1980
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:
February 1980
Creator:
Advisory Council for Technical-Vocational Education in Texas
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Adiabatic compression and radiative compression of magnetic fields
Flux is conserved during mechanical compression of magnetic fields for both nonrelativistic and relativistic compressors. However, the relativistic compressor generates radiation, which can carry up to twice the energy content of the magnetic field compressed adiabatically. The radiation may be either confined or allowed to escape.
Date:
February 12, 1980
Creator:
Woods, C.H.
Object Type:
Report
System:
The UNT Digital Library
Advanced access control system
A prototype voice verification system has been installed which provides the required positive identification at the main site access control point. This system compares an individual's file voice print with a sample voice print obtained from the individual when an attempt is made to enter the site. The voice system transmits the individual's identity to a central processor. The central processor associates that individual's authorization file with a card-key obtained at the access point. The system generates a record of personnel movement, provides a personnel inventory on a real-time basis, and it can retrieve a record of all prior events. The system installed at the Barnwell Nuclear Fuel Plant is described.
Date:
February 1, 1980
Creator:
Barnes, Larry D. & King, Ronald W.
Object Type:
Article
System:
The UNT Digital Library
Advanced Fuel Cell Development Progress Report: July-September 1979
Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes efforts directed toward understanding and improving components of the molten carbonate fuel cells operated at temperatures near 925 K.
Date:
February 1980
Creator:
Pierce, R. D.; Kinoshita, K.; Kucera, G. H.; Poeppel, R. B.; Sim, J. W. & Singh, R. N.
Object Type:
Report
System:
The UNT Digital Library
Aerial Gamma Ray and Magnetic Survey, Final Report. Volume 1: Alpena, Blind River, Cheboygan, Escanaba, and Sault Sainte Marie Quadrangles (Michigan and Wisconsin)
The following report is the first volume documenting the radiometric and magnetic data taken during the month of September, 1979, by EG&G geoMetrics in the states of Michigan and Wisconsin in the quadrangles: Alpena, Blind River, Cheboygan, Escanaba, and Sault Marie quadrangles.
Date:
February 1980
Creator:
EG & G GeoMetrics
Object Type:
Report
System:
The UNT Digital Library
Aerial Gamma Ray and Magnetic Survey, Final Report. Volume 1: Tyler, Texarkana, and Waco Quadrangles (Texas, Oklahoma, Arkansas, and Louisiana)
The following report is the first volume documenting the radiometric and magnetic data taken during the month of October, 1979, by EG&G geoMetrics primarily in the state of Texas in the quadrangles: Tyler, Texarkana, and Waco. This volume contains the survey description, specifications, data processing methods, interpretation methods, interpretation methods, and regional geologic review.
Date:
February 1980
Creator:
EG & G GeoMetrics
Object Type:
Report
System:
The UNT Digital Library
Aerial Gamma Ray and Magnetic Survey, Final Report. Volume 2: Cheboygan and Alpena Quadrangles (Michigan)
This report is one part of the second volume containing data on quadrangles of Michigan and Wisconson. This volume contains the detailed geologic summary, interpretation report, standard deviation maps, pseudo-contour maps, interpretation map, flight line and geologic base map, individual corrected profiles, computer map unit histograms and statistical tables for the Cheboygan and Alpena quadrangles.
Date:
February 1980
Creator:
EG & G GeoMetrics
Object Type:
Report
System:
The UNT Digital Library
Aerial Gamma Ray and Magnetic Survey, Final Report. Volume 2: Escanaba Quadrangle (Michigan and Wisconsin)
This report is one part of the second volume containing data on quadrangles of Michigan and Wisconson. This volume contains the detailed geologic summary, interpretation report, standard deviation maps, pseudo-contour maps, interpretation map, flight line and geologic base map, individual corrected profiles, computer map unit histograms and statistical tables for the Escanaba quadrangle.
Date:
February 1980
Creator:
EG & G GeoMetrics
Object Type:
Report
System:
The UNT Digital Library
Aerial Gamma Ray and Magnetic Survey, Final Report. Volume 2: Sault Sainte Marie and Blind River Quadrangles (Michigan)
This report is one part of the second volume containing data on quadrangles of Michigan and Wisconson. This volume contains the detailed geologic summary, interpretation report, standard deviation maps, pseudo-contour maps, interpretation map, flight line and geologic base map, individual corrected profiles, computer map unit histograms and statistical tables for the Sault Sainte Marie and Blind River quadrangles.
Date:
February 1980
Creator:
EG & G GeoMetrics
Object Type:
Report
System:
The UNT Digital Library
Aerial Gamma Ray and Magnetic Survey, Final Report. Volume 2: Tyler Quadrangle (Texas and Louisiana)
This report is one part of the second volume containing data on quadrangles of Texas and Nebraska. This volume contains the detailed geologic summary, interpretation report, standard deviation maps, pseudo-contour maps, interpretation map, flight line and geologic base map, individual corrected profiles, computer map unit histograms and statistical tables for the Tyler quadrangle.
Date:
February 1980
Creator:
EG & G GeoMetrics
Object Type:
Report
System:
The UNT Digital Library
Aerial Gamma Ray and Magnetic Survey, Final Report. Volume 2: Waco Quadrangle (Texas)
This report is one part of the second volume containing data on quadrangles of Texas, Oklahoma, Arkansas and Louisiana. This volume contains the detailed geologic summary, interpretation report, standard deviation maps, pseudo-contour maps, interpretation map, flight line and geologic base map, individual corrected profiles, computer map unit histograms and statistical tables for the Waco quadrangle in Texas.
Date:
February 1980
Creator:
EG & G GeoMetrics
Object Type:
Report
System:
The UNT Digital Library
Aerial Gamma Ray and Magnetic Survey: Rapid City Quadrangle of South Dakota, Final Report, Volume 1
Final report documenting a high-sensitivity airborne radiometric and magnetic survey of the Rapid City quadrangle including the survey description, specifications, data processing methods, interpretation methods, and regional geologic review.
Date:
February 1980
Creator:
EG & G GeoMetrics
Object Type:
Report
System:
The UNT Digital Library
Aerial Gamma Ray and Magnetic Survey: Rapid City Quadrangle of South Dakota, Final Report, Volume 1, Idaho Survey - Rapid City NTMS NL 13-12
Appendix containing geological survey data of the Rapid City quadrangle to accompany an aerial gamma ray and magnetic survey of the Rapid City quadrangle in South Dakota.
Date:
February 1980
Creator:
EG & G GeoMetrics
Object Type:
Dataset
System:
The UNT Digital Library
Aerial Gamma Ray and Magnetic Survey: Rapid City Quadrangle of South Dakota, Final Report, Volume 1, Idaho Survey - Rapid City NTMS NL 13-12
Appendix containing geological survey data of the Rapid City quadrangle to accompany an aerial gamma and magnetic survey report of the Rapid City quadrangle in South Dakota.
Date:
February 1980
Creator:
EG & G GeoMetrics
Object Type:
Dataset
System:
The UNT Digital Library
The Age, Volume 1, Number 3, February 1, 1980
Monthly publication containing information related to Chambers County, Texas, including current events of the Chambers County Historical Commission, the Wallisville Heritage Park, and the Chambers County historical and genealogical societies; reprinted newspaper articles about county events and citizens; and historical news and records.
Date:
February 1, 1980
Creator:
Wallisville Heritage Park (Organization)
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Nulato Quadrangle (Alaska): Final Report, Volume 1
First volume of a final report documenting the results of an airborne radiometric and magnetic survey in a portion of Alaska, including a description of the survey methods, calibration of the systems, data processing and displays, and interpretation methods.
Date:
February 1980
Creator:
Aero Service (Firm)
Object Type:
Report
System:
The UNT Digital Library
Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Nulato Quadrangle (Alaska): Final Report, Volume 2
Second volume of a final report documenting the results of an airborne radiometric and magnetic survey, including data displays and interpretation results for the Nulato quadrangle.
Date:
February 1980
Creator:
Aero Service (Firm)
Object Type:
Report
System:
The UNT Digital Library
Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Unalakleet Quadrangle (Alaska): Final Report, Volume 1
First volume of a final report documenting the results of an airborne radiometric and magnetic survey in a portion of Alaska, including a description of the survey methods, calibration of the systems, data processing and displays, and interpretation methods.
Date:
February 1980
Creator:
Aero Service (Firm)
Object Type:
Report
System:
The UNT Digital Library
Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Unalakleet Quadrangle (Alaska): Final Report, Volume 2
Second volume of a final report documenting the results of an airborne radiometric and magnetic survey, including data displays and interpretation results for the Unalakleet quadrangle.
Date:
February 1980
Creator:
Aero Service (Firm)
Object Type:
Report
System:
The UNT Digital Library
Los Alamos Scientific Laboratory x-ray survey manual
A manual has been developed by the Health Physics Group to establish procedures for routine testing of industrial and analytical x-ray equipment for compliance with applicable LASL administrative requirements and technical bulletins. Radiation protection survey procedures were developed for the following types of equipment: x-ray diffraction and fluorescence analysis systems, industrial cabinet x-ray systems, industrial noncabinet x-ray systems, and electron microscopes.
Date:
February 1, 1980
Creator:
Olsher, Richard H.
Object Type:
Report
System:
The UNT Digital Library