Serial/Series Title
LWBR Development Program
32
Saxton Plutonium Project Quarterly Progress Report
15
ORNL Radioisotope Distirbution Program Progress Report
14
AWBA Development Program
10
Fiscal Year 1972
10
Low-Cost Solar Array Project
10
Experimental Investigation of the Chemistry of Excited States of Rare Gases Progress Report
7
Fiscal Year 1973
7
Fiscal Year 1974
7
Monthly Highlights for Office of Nuclear Regulatory Research Programs at Oak Ridge National Laboratory
7
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40,235 Matching Results
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40,225 - 40,235 of
40,235
TECHNICAL PROGRESS REPORT, JUNE 1, 1969--MAY 31, 1970.
None
Date:
October 31, 1970
Creator:
Tollin, Gordon
Object Type:
Report
System:
The UNT Digital Library
FLASH PHOTOLYSIS OF FLAVINS. IV. SOME PROPERTIES OF THE LUMIFLAVIN TRIPLET STATE.
None
Date:
October 31, 1970
Creator:
Vaish, Shiv P. & Tollin, Gordon
Object Type:
Report
System:
The UNT Digital Library
Analysis of the National Energy Plan
The plan is treated by end-use sectors, except for utilities and fuel prices which are presented as separate topics. First, the specific strategies and policies contained in the April 20, 1977, White House Fact Sheet and the April 29, 1977, publication entitled, The National Energy Plan (NEP) are itemized. Next, a further explanation of several of the policies is provided based on information in HR 8631, The National Energy Act. Finally, an analysis of some of the implications of the NEP is performed. The analysis is oriented to aspects of the NEP that are pertinent to ERDA's conservation programs. After an overview, the topics are treated in the following order: industry; utilities; residences; buildings; transportation; and energy prices and availability.
Date:
June 17, 1977
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Avoidance of Thermal Effluent by Juvenile Chinook Salmon (Oncorhynchus Tshowytscha) and Its Implications in Waste Heat Management
Knowledge of behavioral responses of aquatic organisms to thermal discharges at power plants is essential to evaluate thermal exposure and subsequent effects on survival and ecological success. Instantaneous responses of juvenile salmon that encountered a simulated river-thermal plume interface were assessed in a model raceway with a thermal discharge. Fish movement and response to the discharge were recorded on videotape. Juvenile chinook salmon (Oncorhynchus tshawytscha) tested under three discharge conditions (no plume, ambient plume and heated plume) avoided plume temperatures greater than 9 to 11/sup 0/C above ambient. Fish occasionally oriented to the discharge current, but were not attracted to the thermal component of the plume when plume ..delta..T's were below the avoidance level of 11/sup 0/C. Fish did not pass to the lower end of the raceway when plume ..delta..T exceeded 9 to 11/sup 0/C. The responses noted in our experiments suggest organismic behavior may prevent juvenile salmon in nature from experiencing lethal conditions from thermal discharges and have application in waste heat management and utilization.
Date:
March 1, 1977
Creator:
Gray, R H
Object Type:
Article
System:
The UNT Digital Library
Application of a Non-Equilibrium Drift Flux Model to Two-Phase Blowdown Experiments
A vapor drift-flux model has been applied to the discharge of two-phase mixtures under choked flow conditions, including equilibrium as well as non-equilibrium vapor generation models. The system of four conservation equations is being solved, using the method of characteristics. Closed form expressions have been obtained for the propagation velocities from approximate solutions of the system's characteristic determinant. Treatment of the phase change front as a discontinuity, similar to the treatment of shocks in single phase gas dynamics, permitted very accurate solutions. Good agreement with experimental data is shown.
Date:
August 1976
Creator:
Kroeger, P. G.
Object Type:
Article
System:
The UNT Digital Library
Application of Soft X-Ray Appearance Potential Spectroscopy to Light Lanthanides, 4d Transition Metals, and Insulators
Evaporated films of La, Ce, Yb, Y, Ag--Mn(5 percent), KCl, MnF$sub 2$, CsCl and LaF$sub 3$ were studied using the soft x-ray appearance potential spectroscopy (SXAPS) technique. Studies were also made of bulk polycrystalline samples of Y, Zr, Nb, and Mo. The results are discussed in terms of existing SXAPS theories. Several similarities between soft x-ray absorption (SXA) data and the SXAPS results are discussed, and it is shown that the SXA data can aid in the interpretation of SXAPS spectra when using the well-known self-convolution model. In this approximation the absorption coefficient, $alpha$(E), is substituted for the density of states, N(E-E/sub c/) $Yields$ $alpha$(E). For more localized excitations, a convolution of $alpha$(E) with bremsstrahlung isochromat data, based on Wendin's two density of states formalism is used to predict SNAPS results. (auth)
Date:
October 1, 1975
Creator:
Smith, R. J.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Activation and Afterheat in a Fusion Power Reactor
A series of calculations was performed to analyze the activation of the structure of the Princeton Reference Design D- T Fusion Power Reactor. The relevant isotope transmutation chains were solved numerically for 30 years' operation (3/4 load factor) at 5310 MW(t). Decay heat and activity curves versus time after shutdown were obtained for the reference stainless steel structure and for a vanadium alloy as an alternate. Afterheat appears not to pose a safety hazard because of the large blanket heat capacity; however, the large amount of cobalt-60 produced in the steel (2.82 x 10/sup 7/ curies) may make the ultimate disposal of that material difficult. Although the activation in the vanadium is comparable to that in the steel, the short half-lives of the radioisotopes (less than a year) greatly reduce the disposal problems. (auth)
Date:
October 1, 1973
Creator:
Price, W. G. Jr.
Object Type:
Report
System:
The UNT Digital Library
Attenuation of Airborne Debris From LMFBR Accidents
Experimental and theoretical studies have been performed to characterize the behavior of airborne particulates (aerosols) expected to be produced by hypothetical core disassembly accidents (HCDA's) in liquid metal fast breeder reactors (LMFBR's). These aerosol studies include work on aerosol transport in a 20-m high, 850-m/sup 3/ closed vessel at moderate concentrations; aerosol transport in a small vessel under conditions of high concentration (approx. 1000 g/m/sup 3/), high turbulence, and high temperature (approx. 2000/sup 0/C); and aerosol transport through various leak paths. These studies have shown that little, if any, airborne debris from LMFBR HCDA's would reach the atmosphere exterior to an intact reactor containment building.
Date:
January 1, 1978
Creator:
Morewitz, H. A.; Johnson, R. P.; Nelson, C. T.; Vaughan, E. U.; Guderjahn, C. A.; Hilliard, R. K. et al.
Object Type:
Article
System:
The UNT Digital Library
Benchmark Critical Experiments on Low-Enriched Uranium Oxide Systems With H/U = 0. 77
Ten benchmark experiments were performed at the Critical Mass Laboratory at Rockwell International'1s Rocky Flats Plant, Golden, Colorado, for the US Nuclear Regulatory Commission. They provide accurate criticality data for low-enriched damp uranium oxide (U/sub 3/O/sub 8/) systems. The core studied consisted of 152 mm cubical aluminum cans containing an average of 15,129 g of low-enriched (4.46% /sup 235/U) uranium oxide compacted to a density of 4.68 g/cm/sup 3/ and with an H/U atomic ratio of 0.77. One hundred twenty five (125) of these cans were arranged in an approx. 770 mm cubical array. Since the oxide alone cannot be made critical in an array of this size, an enriched (approx. 93% /sup 235/U) metal or solution driver was used to achieve criticality. Measurements are reported for systems having the least practical reflection and for systems reflected by approx. 254-mm-thick concrete or plastic. Under the three reflection conditions, the mass of the uranium metal driver ranged from 29.87 kg to 33.54 kg for an oxide core of 1864.6 kg. For an oxide core of 1824.9 kg, the weight of the high concentration (351.2 kg U/m/sup 3/) solution driver varied from 14.07 kg to 16.14 kg, and the weight of the …
Date:
August 1, 1979
Creator:
Tuck, G & Oh, I
Object Type:
Report
System:
The UNT Digital Library
Archaeological and Chemical Analysis of Tell El Yahudiyeh Ware
Typological and geographic analyses indicate that Tell el Yahudiyeh ware (found in Cyprus, Egypt, Nubia, and the Levant during the Middle Bronze period, c. 1750-1550 B.C.) were probably manufactured in two areas, the Nile Valley and the Levant. Activation analysis was carried out and correlated with the archaeological analyses. Results confirm the two "families" of the ware, one Egyptian and one Levantine. Speculations are offered on the social interaction of the period. 11 figures, 2 tables. (DLC)
Date:
January 1, 1978
Creator:
Kaplan, M. F.; Harbottle, G. & Sayre, E. V.
Object Type:
Report
System:
The UNT Digital Library
Activities of the Department of Energy in Education. Annual Status Report, FY 1978
The Department of Energy's responsibilities in implementing President Carter's National Energy Plan include identifying the appropriate role of educational activities and institutions in that work. This study describes educational activities as they existed one year after the creation of the Department of Energy. Educational activities of educational institutions are included in the study, with the deliberate exception of the very substantial research activity conducted by universities. This report is intended to assist DOE program managers in the utilization of educational process in their operations and to provide guidance and information to the public about the Department's educational activities. For additional historical information, please consult DOE, IR-0008. (RWR)
Date:
January 1, 1979
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library