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72,823 Matching Results

Start Over Access Open Access Day 21st Language English

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Results: 1 - 24 of 72,823 next
Best Match Title Creator Date Created (Newest) Date Created (Oldest) Date Added (Newest) Date Added (Oldest)
Modified Purification System Performance Test. Core 1, Seed 2. Test Results T-641124-A. Section 2 (open access)

Modified Purification System Performance Test. Core 1, Seed 2. Test Results T-641124-A. Section 2

The effectiveness of purification in controlling plant radioactivation rates was determined through comparison of the actual effects produced from plant operation with and without purification. With the purification system in service, there was no appreciable difficulty in maintaining the reactor coolant within reference water specifications. In addition, there was no discernible increase of crud deposition in the coolant system as determined by direct radiation measurements of the purification hairpin loop. However, without demineralization as a controlling agent, the gross non-volatile gamma activity levels of the reactor coolant increased and the specific activities of longlived fission products were at higher levels. Although the general levels of water- borne activities increased during the test period, the associated plant systems did not exceed their limits. (auth)
Date: July 21, 1961
Creator: unknown
Object Type: Report
System: The UNT Digital Library
The neutrinos in muon decay (open access)

The neutrinos in muon decay

We review the available information on the identity of the neutrino states emitted in muon decay, and discuss the exotic decay {mu}{sup +} {yields} e{sup +} {bar {nu}}{sub e}{nu}{sub {mu}}. 22 refs.
Date: October 21, 1991
Creator: Herczeg, P.
Object Type: Article
System: The UNT Digital Library
High resolution x-ray crystal spectrographs (open access)

High resolution x-ray crystal spectrographs

Observation of x-ray line emissions are valuable for determining the thermodynamic state of the emitting plasma. For laser produced plasmas, diffraction crystals can be used to isolate x-ray monochromes to obtain high resolution spectral measurements. We will describe a versatile multi-crystal high resolution spectrograph used for photon energies from 0.5 to 6 keV. We will discuss a calculational package that tunes the response and sensitivity of the instrument and estimates the effect of source extent on spectral resolution. A scheme using fine slits to obtain spatial resolution with the basic instrument will also be described. An instrument is being built for Shiva diagnostics that incorporates a diffraction crystal and an x-ray streak camera. The design rationale for the crystal stage will be discussed.
Date: October 21, 1977
Creator: Koppel, L. N. & Eckels, J. D.
Object Type: Article
System: The UNT Digital Library
EQUIPOISE-3: A TWO DIMENSIONAL, TWO-GROUP, NEUTRON DIFFUSION CODE FOR THE IBM-7090 COMPUTER (open access)

EQUIPOISE-3: A TWO DIMENSIONAL, TWO-GROUP, NEUTRON DIFFUSION CODE FOR THE IBM-7090 COMPUTER

EQUIPOISE-3 is an IBM-7090 FORTRAN programmed code for the solution of two-group, two-dimensional, neutron diffusion equations. A maximum of 2l00 mesh points may be used, and the code will solve problems in either rectangular or cylindrical geometry. Logarithmic derivative boundary conditions are allowed, and removal of neutrons from both groups is permitted. Adjoint fluxes with the associated fluxadjoint flux regional integrals may be calculated automatically if desired. A constant buckling, group-dependent buckling, or region-dependent buckling may be specified for rectangular geometry. This program is intended to fill the need for a rapid two-dimensional calculation suitable for survey calculations. During the iterative part of the computations, all operations are carried out in the core memory. The magnetic tape memory is used only for input, output, and program storage. The running time for a 1000-point problem requiring 100 iterations would be about 3 min.(auth)
Date: February 21, 1962
Creator: Fowler, T.B. & Tobias, M.L.
Object Type: Report
System: The UNT Digital Library
CHEMICAL TECHNOLOGY DIVISION ANNUAL PROGRESS REPORT FOR PERIOD ENDING MAY 31, 1961 (open access)

CHEMICAL TECHNOLOGY DIVISION ANNUAL PROGRESS REPORT FOR PERIOD ENDING MAY 31, 1961

Activities in research programs are summarized in the areas of power reactor fuel processing, fluoride volatility processing, molten salt reactor fuel processing, homogeneous reactor fuel processing, waste treatment and disposal pilot plant decontamination, GCR coolant purification studies, equipment decontamination, HRP thoria blanket development, fuel cycle development, transuranium element studies, production of U/sup 232/, uranium processing, fission product recovery, thorium recovery from granite, solvent extraction technology, mechanisms of separation processes, radiation effects on catalysts, ion exchange technology, chemical engineering research, chemical applications of nuclear explosions, reactor evaluation studies, and assistance programs. (J.R.D.)
Date: September 21, 1961
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Advanced development of a pressurized ash agglomerating fluidized-bed coal gasification system. Quarterly progress report, April 1-June 30, 1982 (open access)

Advanced development of a pressurized ash agglomerating fluidized-bed coal gasification system. Quarterly progress report, April 1-June 30, 1982

The overall objective of the Westinghouse coal gasification program is to demonstrate the viability of the Westinghouse pressurized, fluidized bed, gasification system for the production of medium-Btu fuel gas for syngas, electrical power generation, chemical feedstocks, or industrial fuels and to obtain performance and scaleup data for the process and hardware. Progress reports are presented for the following tasks: (1) operation and maintenance of the process development unit (PDU); (2) process analysis; (3) cold flow scaleup facility; (4) process and component engineering and design; and (5) laboratory support studies. Some of the highlights for this period are: TP-032-1, a single stage, oxygen-steam blown gasifier test was conducted in three operational phases from March 30, 1982 through May 2, 1982; TP-032-2 was conducted in two operational phases from May 20, 1982 through May 27, 1982; TP-032-1 and TP-032-2 successfully served as shakedown and demonstrations of the full cyclone cold wall; no visible deposits were found on the cold wall after processing highly fouling coals; samples of product gas produced during TP-032-1, were passed through four different scrubbing solutions and analyzed for 78 EPA primary organic pollutants, all of which were found to be below detection limits; TP-M004, a CO/sub 2/ tracer …
Date: October 21, 1982
Creator: unknown
Object Type: Report
System: The UNT Digital Library
[News Script: Murder] (open access)

[News Script: Murder]

Script from the WBAP-TV/NBC station in Fort Worth, Texas relating a news story.
Date: September 21, 1968
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Object Type: Script
System: The UNT Digital Library
[News Script: Superchick] (open access)

[News Script: Superchick]

Script from the WBAP-TV/NBC station in Fort Worth, Texas relating a news story.
Date: September 21, 1968
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Object Type: Script
System: The UNT Digital Library
[News Script: Lubbock refugio] (open access)

[News Script: Lubbock refugio]

Script from the WBAP-TV/NBC station in Fort Worth, Texas relating a news story.
Date: December 21, 1968
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Object Type: Script
System: The UNT Digital Library
[News Script: Teel Salun] (open access)

[News Script: Teel Salun]

Script from the WBAP-TV/NBC station in Fort Worth, Texas relating a news story.
Date: September 21, 1968
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Object Type: Script
System: The UNT Digital Library
[Letter from Patsy Sharp to Jack Davis, November 21, 1991] (open access)

[Letter from Patsy Sharp to Jack Davis, November 21, 1991]

Photocopy of a letter from Patsy Sharp to Jack Davis discussing that Charles Davidson, Whataburger's Regional Manager, forwarded a Class Acts proposal to their advertising company. Patsy writes that the Class Acts Advertising Manager, Julie Garinger, has been in contact with the advertising account for Whataburger to discuss consumer responses to the Art-O-Grams, art education newspaper series. As soon as a date is selected, Sharp will be in contact with Bill McCarter to discuss who else should attend the meeting. Copied on the letter is Bill McCarter.
Date: November 21, 1991
Creator: Sharp, Patsy
Object Type: Letter
System: The UNT Digital Library
[Letter from Pam Stephens to Russ Chapman, April 21, 1993] (open access)

[Letter from Pam Stephens to Russ Chapman, April 21, 1993]

Photocopy of a letter from Pam Stephens to Russ Chapman, Principal Lakewood Elementary School, in regards to attached content of models that details how an elementary school goes about implementing discipline-based art education. A second model has been modified for Lakewood.
Date: April 21, 1993
Creator: Geiger-Stephens, Pamela K.
Object Type: Letter
System: The UNT Digital Library
[Letter from Jack Davis to David Kesterson, March 21, 1994] (open access)

[Letter from Jack Davis to David Kesterson, March 21, 1994]

Photocopy of a letter from Jack Davis, Dean of the School of Visual Arts, to David Kesterson, Vice Provost for the University of North Texas. To request more space for North Texas Institute for Educators on the Visual Arts by wanting access to Rooms 305 & 303 B in Marquis Hall, UNT. Davis understands that the need for space is great, but NTIEVA has proven themselves to be a viable operation with consistent external funding for its program, along with a major outreach for UNT. Davis writes that in the last five years the Institute has generated more than 1,400,000 in grant funds and has only grown more steadily with each passing year. Thus with the expansion of the program, Davis requests more space to continue their operations as their previous space has become overly crowded.
Date: March 21, 1994
Creator: Davis, Donald Jack
Object Type: Letter
System: The UNT Digital Library
[Letter from Pam Stephens to Cyndi Riddle, February 21, 1997] (open access)

[Letter from Pam Stephens to Cyndi Riddle, February 21, 1997]

Photocopy of a letter from Pam Stephens, graduate research assistant, North Texas Institute for Educators on the Visual Arts, to Cyndi Riddle, Art Specialist at North Hi Mount Elementary. The letter is in regards to the idea of teacher-presenters at Texas Art Education Association meetings, believing it is an excellent suggestion. Stephens has already contacted Linda Alford from Plano and Jan Schronk from Hurst-Euless-Bedford ISD, about commitments to their teachers and helping to host. Included in the letter are suggestions about helping cater to presenter needs.
Date: February 21, 1997
Creator: Geiger-Stephens, Pamela K.
Object Type: Letter
System: The UNT Digital Library
[Letter from Pam Stephens to Jan Schronk, February 21, 1997] (open access)

[Letter from Pam Stephens to Jan Schronk, February 21, 1997]

Photocopy of a letter from Pam Stephens, Project Coordinator of North Texas Institute for Educators on the Visual Arts, to Jan Schronk, Coordinator of Fine Arts for Hurst-Euless-Bedford ISD. Reminding Schronk that the Teaching Art Education Association conference will be held in Fort Worth in November. Nancy Walkup Reynolds, Beverly Fletcher and Stephens are putting the conference together and contacting NTIEVA consortium districts to ask that art specialists attend and consider making presentations and serving as hosts at the event. To attend the conference as a participant, the teacher must be a member of TAEA, enclosed in the letter are membership forms. Stephens would like this event to be hospitable to visiting educators and would like to visit Schronk's next art meeting to beg her case before the teachers.
Date: February 21, 1997
Creator: Gieger-Stephens, Pamela K.
Object Type: Letter
System: The UNT Digital Library
[Letter from Lori Weisgerber to Bill McCarter, September 21, 1994] (open access)

[Letter from Lori Weisgerber to Bill McCarter, September 21, 1994]

Photocopy of a letter from Lori Weisgerber, the Getty Center to Bill McCarter, co-director of North Texas Institute for Educators on the Visual Arts, giving McCarter a signed copy of the Getty Center for Education in the Arts grant offer to the University of North Texas for the use by North Texas Institute for Educators on the Visual Arts. Grant not on file with letter.
Date: September 21, 1994
Creator: Weisgerber, Lori
Object Type: Letter
System: The UNT Digital Library
Minority Economic Development in the United States: Selected References, August 1967 to July 1969 (open access)

Minority Economic Development in the United States: Selected References, August 1967 to July 1969

This report provides a bibliography of resources related to minority economic development in the United States which were published from August 1967 to July 1969.
Date: November 21, 1969
Creator: Mitrisin, John B.
Object Type: Report
System: The UNT Digital Library
Selected Statistics relating to Firearms (open access)

Selected Statistics relating to Firearms

This report describes the statistics concerning due to firearms. For these statistics, the United States has two sources: The U.S public health service, bureau of vital statistics, and the federal bureau of investigation.
Date: June 21, 1968
Creator: Olguin, Mary
Object Type: Report
System: The UNT Digital Library
Ethnic Groups and American Politics: Selected References (open access)

Ethnic Groups and American Politics: Selected References

This report provides a bibliography of resources related to various ethnic groups influence on American politics.
Date: August 21, 1970
Creator: Downing, Paul
Object Type: Report
System: The UNT Digital Library
Evaluation of the radionuclide concentrations in soil and plants from the 1975 terrestrial survey of Bikini and Eneu Islands (open access)

Evaluation of the radionuclide concentrations in soil and plants from the 1975 terrestrial survey of Bikini and Eneu Islands

In June 1975 a radiological survey was conducted of the terrestrial environment of Bikini and Eneu islands (Bikini Atoll) to evaluate the potential radiation dose to the returning Bikini population. In this report, we present measurements of the radionuclide concentration in soil profiles and in dominant species of edible and nonedible, indicator plants. The use of these data to derive relationships to predict the plant uptake of radionuclides from soil is described. Approximately 620 soil and vegetation samples from Bikini and Eneu Islands were analyzed by Ge(Li) gamma spectrometry and by wet chemistry. The predominant radionuclides in these samples were /sup 60/Co, /sup 90/Sr, /sup 137/Cs, /sup 239,240/Pu, /sup 241/Pu, and /sup 241/Am.
Date: January 21, 1977
Creator: Colsher, C. S.; Robison, W. L. & Gudiksen, P. H.
Object Type: Report
System: The UNT Digital Library
Advanced development of a pressurized ash agglomerating fluidized-bed coal gasification system. Quarterly progress report, October 1-December 31, 1982 (open access)

Advanced development of a pressurized ash agglomerating fluidized-bed coal gasification system. Quarterly progress report, October 1-December 31, 1982

The overall objective of the Westinghouse coal gasification program is to demonstrate the viability of the Westinghouse pressurized, fluidized bed, gasification system for the production of medium-Btu fuel gas for syngas, electrical power generation, chemical feedstocks, or industrial fuels and to obtain performance and scaleup data for the process and hardware. Progress reports are presented for the following tasks: (1) operation and maintenance of the process development unit (PDU); (2) process analysis; (3) cold flow scaleup facility; (4) process component engineering and design; and (5) laboratory support studies involving gas solids flow modeling and coal/ash behavior. 9 figures, 19 tables.
Date: April 21, 1983
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Telephone costs at Princeton Plasma Physics Laboratory (open access)

Telephone costs at Princeton Plasma Physics Laboratory

The Princeton Plasma Physics Laboratory (PPPL) is a fusion energy research laboratory located on the Forrestal Campus of Princeton University in Plainsboro, New Jersey. Princeton University operates the laboratory under contact with the US Department of Energy (DOE). PPPL researches nuclear fusion and plasma physics and investigates the potential of a commercial fusion reactor. The objective of the audit was to determine whether PPPL was monitoring telephone use and costs in order to prevent personal toll costs from being charged to the DOE contract. Our audit disclosed that 5 out of the 10 PPPL cost centers we reviewed were not following established policies and procedures for monitoring telephone toll charges. This condition resulted because PPPL's management did not adequately review telephone use and costs. As a result, PPPL charged personal toll calls to DOE. Therefore, we recommend that the Manager, DOE Field Office, Chicago, (CH) direct PPPL to enforce its telephone policies and procedures to ensure that personal toll calls are not charged to DOE. The Acting Manager, CH, concurred with our recommendations and agreed to implement corrective actions.
Date: August 21, 1991
Creator: unknown
Object Type: Report
System: The UNT Digital Library
DEVELOPMENT OF RING-JOINT FLANGES FOR USE IN THE HRE-2 (open access)

DEVELOPMENT OF RING-JOINT FLANGES FOR USE IN THE HRE-2

Ring-joint flanges were studied in thermal-cycle tests as part of the development work associated with Homogeneous Reactor Experiment No. 2 (HRE-2). The purpose of this study was to provide criteria for design, installation, and operation of joints that would remain leaktight under reactor operating temperatures and pressures. Joints ranging from 1/2 in., l500 lb to 4 in., 2500 lb and with various initial bolt loadings were cycled between room temperature and 636 deg F. It was demonstrated that when joints were made up to HRE-2 standards and specifications, leak rates of less than 0.25 x 10/sup -3/ g of water per day per inch of gasket pitch diameter could be routinely- attained. Undamaged gaskets could be reinstalled or new gaskets used with equal probability of achieving acceptable leak rates. The system installed in HRE-2 was provided with a high-pressure buffer system to ensure that the small amount of leakage to the cell would be nonradioactive. (auth)
Date: December 21, 1961
Creator: Robinson, J. N.; Lundin, M. I. & Spiewak, I.
Object Type: Report
System: The UNT Digital Library
Reactor safety. Quarterly technical progress report, October--December 1977. [LMFBR] (open access)

Reactor safety. Quarterly technical progress report, October--December 1977. [LMFBR]

The objectives of the program are to conduct tests that will characterize the behavior of sodium oxide, fuel, fission product, and other aerosols as they might be generated by various postulated LMFBR accidents; determine by analysis and confirm by experiment the generation and transport of these aerosols with respect to source (location, type, and configuration), for the entire course of events associated with real and hypothetical accident conditions; and conduct tests that will determine the effect of molten fuel on reactor structural or sacrificial material.
Date: March 21, 1978
Creator: unknown
Object Type: Report
System: The UNT Digital Library