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Proposed Revision in Computations of MPC's for Long-Lived Radioisotopes

Description: Equations are developed for the computation of MPC's for radioisotopes assuming the excretion or retention to follow a power law rather than an exponential law. Computations are made for four isotopes on which some human data are available. Uncertainties in the initial data due to the use of intravenous injection to obtain the primary data, the definition of retention and the effects of age and diet are discussed.
Date: March 1, 1955
Creator: Healy, J. W.
Partner: UNT Libraries Government Documents Department
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Gold Alloys as Process-Solution-Lubricated Sleeve Bearings

Description: Ten materials in which gold was alloyed with copper, silver, graphite, platinum, nickel or zinc (compositions given in Table 1) were evaluated in this study. Corrosion tests to determine the resistance of the alloys to boiling 60 to 65% nitric acid showed that with the exception of an alloy containing 51 wt % gold and 49 wt % graphite (Gold Graphalloy 811) which dissolved in 48 hr and an alloy containing 90 wt % gold and 10 wt % graphite which lost 2.3 wt % in 240 hr the alloys were essentially corrosion resistant.
Date: March 1, 1955
Creator: McCarthy, P. B.
Partner: UNT Libraries Government Documents Department
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End Seals for "Cored" Slugs

Description: As potentially suitable alternate methods of installing closure plugs in cored slugs, four different schemes were considered. One of these schemes, whereby a flat chamfered uranium disc is crimped into a counterbored recess at each end of the bare slug after pickling, was developed to a workable state, and partially evaluated prior to reassignment of the job to another group. From the results of initial evaluation tests, this process appears to provide leak-free core closures and offers economic benefits that make it attractive as a production method, should cored slugs be adopted as standard.
Date: March 1, 1955
Creator: Smith, E. A.
Partner: UNT Libraries Government Documents Department
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Final Report: National Security Commission on Artificial Intelligence

Description: Final report presenting the National Security Commission for Artificial Intelligence (NSCAI)'s recommendations for winning the AI era. It includes a 16 chapter Main Report and "Blueprints for Action that outline the concrete steps departments and agencies can take to implement NSCAI's recommendations." - Introduction.
Date: March 1, 2021
Creator: National Security Commission on Artificial Intelligence (U.S.)
Partner: UNT Libraries Government Documents Department
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Radioactivity of the Cooling Water

Description: The most important source of radioactivity at the exit manifold of the pile will be due to O19, formed by neutron absorption of O18. A recent measurement of Fermi and Weil permits to estimate that it will be safe to stay about 80 minutes daily close to the exit manifolds without any shield. Estimates are given for the radioactivities from other sources -- both in the neighborhood and farther away from the pile.
Date: March 1, 1943
Creator: Wigner, Eugene Paul, 1902-1995.
Partner: UNT Libraries Government Documents Department
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The National Arts Education Consortium FY 2001 Proposal, Section Four: Consortium Budgets and Narratives

Description: Section four of a proposal by the National Arts Education Consortium, titled, "Consortium Budgets and Narratives." Subsections include a proposed budget and narrative for the National Steering Committee (NSC), and a proposed budget and narrative for the National Program Manager's Office.
Date: March 1, 2000
Creator: The National Arts Education Consortium
Partner: UNT Libraries Special Collections
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A Determination of the Coefficient of Thermal Expansion of Alpha Plutonium

Description: The coefficient of linear expansion of alpha plutonium has been determined for the range -180 to +100 degree C by the silicon-tube and dial-indicator method. The value of the expansion coefficient is reported as [formula]. Included are a detailed description of the apparatus and a discussion of the method.
Date: March 1, 1952
Creator: Elliott, R. O. & Tate, R. E.
Partner: UNT Libraries Government Documents Department
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The Nickel-Plutonium System

Description: A tentative nickel-plutonium constitutional diagram was based on data obtained by thermal analysis, metallography, and x-ray-diffraction techniques. The systema is a complex one with the following important features. Nickel is soluble in epsilon plutonium, extending the epsilon field to 4.3 at.% nickel at 465 deg C. Nickel and plutonium form six intermetallic compounds, PuNi, EnNi/sub 2/, PuNi/sub 3/, PuNi/sub 4/, PuNi/sub 5/, and PuNi/sub 9/. The compound PuNi/ sub 5/ forms congruently from the melt at approximately l300 deg C, whereas the other compounds form peritectoidally. The extended epsilon field terminates in a eutectoid reaction at 415 deg C and l.5 at.% nickel. Epsilon plutonium and the compound PuNi form a eutectic system at 465 deg C with a eutectic composition of l2.5 at,% nickel. Nickel and the compound PuNi/sub 9/ form a eutectic system at l2l0 deg C with a eutectic composition of 92 at.% nickel. Plutonium forms a limited solid solution with nickel.
Date: March 1, 1951
Creator: Wensch, Glen William, 1917-; Whyte, D D.; Cramer, E M.; Ellinger, F H.; Schonfeld, F W. & Struebing, V O.
Partner: UNT Libraries Government Documents Department
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Suitability of Inconel for Corrosion Protection on Water Side of Sodium Component Steam Generator

Description: Abstract; The heat exchanger and steam generator for the U.S. Atomic Energy Commission Sodium Components Project will be constructed entirely of type 316 stainless steel. Because of the susceptibility of this alloy to stress corrosion cracking, it is proposed to clad all areas of the steam generator with Inconel where the stainless steel will be exposed to water and steam. This report includes a discussion of the work by numerous investigators that justify the selection of Inconel for this service. A discussion of Inconel type welding alloys is also included.
Date: March 1, 1961
Creator: Phillips, Laurence E. & Vawter, Frank J.
Partner: UNT Libraries Government Documents Department
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Accurate Nuclear Fuel Burnup Analyses; Ninth Quarterly Progress Report, (December 1963 - February 1964)

Description: The objective of the Accurate Nuclear Fuel Burnup Analyses program is to develop more accurate methods for burnup analysis for general use than the current method of analysis of Ca-137 or Sr-90. The program will require from three to five years of effort.
Date: March 1, 1964
Creator: Rider, B. F.; Peterson, J. P., Jr.; Ruiz, C. P. & Smith, F. R.
Partner: UNT Libraries Government Documents Department
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Two-Phase Pressure Losses Quarterly Progress Report: Eighth Quarter, November 12, 1963 - February 11, 1964

Description: Technical report describing that voids were measured in a ½-inch by 1-3/4-inch channel with the S-1 insert (B(0)/B(1) = 0.4, L(0) = 0.1 inch), at 2 inches ahead of the insert (position A), ½-inch past the insert (position B), 5 inches past (position C), and 12 inches past (position D). The conditions were: P – 1000 psia, G = 1.00 x 10(6) lb/h-ft(2), and x = 18.8 percent. Average void and void distribution at position A are the same as for flow in a straight channel. Void distribution at position B shows that the stagnation region downstream of the inserts contains a high fraction of voids. Average void and void distribution at positions C and d show that the two-phase mixture becomes strongly mixed (homogenized) as a result of passing through he contraction-expansion inserts. Distribution at position D approaches the distribution at position A; i.e., the straight channel distribution.
Date: March 1, 1964
Creator: Janssen, E. (Engineer) & Kervinen, J. A.
Partner: UNT Libraries Government Documents Department
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Chemistry Division Quarterly Progress Report for Period Ending September 30, 1950

Description: Technical report covering chemistry of source, fissionable, and structural elements, nuclear chemistry, radio-organic chemistry, chemistry of separations processes, chemical physics, radiation chemistry, and instrumentation at the Oak Ridge National Laboratory for the period ending September 30, 1950. [From Abstract]
Date: March 1, 1951
Creator: Taylor, E. H.; Boyd, G. E. & Bredig, M. A.
Partner: UNT Libraries Government Documents Department
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Texas Stonewall Democratic Caucus Custom Summary Report

Description: Custom summary report with a net income of -$225.92 and a balance of $4,422.79 for the period ending on March 1, 2007. Included is an income by customer summary with a total of -$225.92 from June 8, 2006 through March 1, 2007.
Date: March 1, 2007
Partner: UNT Libraries Special Collections
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Coalescence instability of magnetic islands

Description: The stability of a periodic magnetic island structure was studied using the ideal MHD equations. An instability is found which describes the tendency toward coalescence of parallel currents in the neighboring islands. It is expected that this instability will proceed at a fast MHD rate as long as the forces driving the instability can overcome the stabilizing forces due to the compression of the magnetic field between the islands. Beyond that phase, resistivity is expected to dominate the tendency toward island coalescence. Island coalescence of this kind can explain why in the observation of tearing mode instabilities in tokamaks, only the modes with minimum values of m and n are seen.
Date: March 1, 1976
Creator: Finn, J. M. & Kaw, P. K.
Partner: UNT Libraries Government Documents Department
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Radiative Properties of Ash and Slag

Description: Thermal radiation plays a key role in the operation and efficiency of combustion systems, accounting for over 90% of the heat transfer. The analysis of radiative heat transfer in coal-fired boilers, combustion chambers and other energy systems requires accounting for the effects of inorganic deposits on bounding surfaces and of entrained particulates, such as pulverized coal, char, and fly-ash. These effects can be predicted; however, the accuracy in predicting the radiative properties of entrained pyrolysis (ash) and deposit layers (slag) is limited by inaccurate knowledge of the physical/chemical properties of the materials over a range of material temperatures and radiative wavelengths that is representative of conditions in practical combustion systems. The objective of this project is to make laboratory measurements of the radiative properties of extracted ash and slag deposit samples.
Date: March 1, 1990
Creator: Solomon, P. R. & Markham, J. R.
Partner: UNT Libraries Government Documents Department
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pi. /sub. mu. /sub 2//: an absolute pion beam flux monitor

Description: A two-arm ..pi../sub ..mu../sub 2///beam monitor telescope provides one possible means of monitoring pion (P/sub ..pi../ less than 400 MeV/c) beam fluxes to better than 1 percent.
Date: March 1, 1976
Creator: Wadlinger, E. A.
Partner: UNT Libraries Government Documents Department
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Properties for LMFBR safety analysis. [Thermodynamic, transport, mechanical]

Description: This handbook brings together the most current data on thermodynamic, transport, and mechanical properties of reactor materials (fuel, coolant, structural material) for reactor safety analysis. NSMH (Nuclear Systems Materials Handbook) property code numbers and formats were used. The materials covered are UO/sub 2/, (U, Pu)O/sub 2/, Na, and Types 304 and 316 stainless steels. (DLC)
Date: March 1, 1976
Partner: UNT Libraries Government Documents Department
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Annual progress report FY 1976. [Numerical methods for time-dependent reactor dynamics]

Description: This project is directed toward development of numerical methods suitable for the computer solution of problems in reactor dynamics and safety. Specific areas of research include methods of integration of the time-dependent diffusion equations by finite difference and finite element methods; representation of reactor properties by various homogenization procedures; application of synthesis methods; and development of response matrix techniques.
Date: March 1, 1976
Creator: Hansen, K. F. & Henry, A. F.
Partner: UNT Libraries Government Documents Department
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Cementing of geothermal wells. Progress report No. 4, January--March 1977

Description: A coordinated program for the development of improved cements specifically designed for geothermal well applications was continued. Polymer cements (PC) have been identified as promising well cementing materials. Tests indicate that at temperatures above 218/sup 0/C (425/sup 0/C) only PC materials containing mixtures of silica and portland cement are durable to brine and steam. Differential thermal analysis (DTA) studies are underway to determine the reason. Tests are also being conducted on two monomer systems that may further extend the operating temperature range. (JGB)
Date: March 1, 1977
Creator: Steinbeg, M. & Kukacka, L. E.
Partner: UNT Libraries Government Documents Department
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Energy and technology review

Description: A separate abstract was prepared for each of the four sections. Two of these abstracts are included in Energy Abstracts for Policy Analysis (EAPA). (MOW)
Date: March 1, 1977
Creator: Selden, R. W.; Crawford, R. B.; Cummings, K. L. & Prono, J. K. (eds.)
Partner: UNT Libraries Government Documents Department
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Algorithm for locating the extremum of a multi-dimensional constrained function and its application to the PPPL Hybrid Study

Description: A description is presented of a general algorithm for locating the extremum of a multi-dimensional constrained function. The algorithm employs a series of techniques dominated by random shrinkage, steepest descent, and adaptive creeping. A discussion follows of the algorithm's application to a ''real world'' problem, namely the optimization of the price of electricity, P/sub eh/, from a hybrid fusion-fission reactor. Upon the basis of comparisons with other optimization schemes of a survey nature, the algorithm is concluded to yield a good approximation to the location of a function's optimum.
Date: March 1, 1978
Creator: Bathke, C.
Partner: UNT Libraries Government Documents Department
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Energy budget of the volcano Stromboli, Italy. [Power potential of 100- to 1000 MW]

Description: Data from eruption movies are used to construct a budget among various modes of energy transport for the volcano Stromboli. In its normal steady state eruption mode, Stromboli delivers approximately 1.1 MW of power to the surface by energy transport mechanisms other than conduction; conducted heat probably is of the order of 6 mW (for the part of the volcano above sea level). Of this 1.1 mW, approximately 60 percent of the eruption energy is carried in the thermal energy of ejected gas; approximately 20 percent by the thermal energy of ejected lava, and 20 percent by radiative heat transfer from the open vent. Energy transported in kinetic energy of the gas seismic energy and jet noise of acoustical energy is trivial. The probable thermal reserve of Stromboli could be quite large, perhaps sufficient to produce power in the 100- to 1000-MW range provided engineering capability existed to exploit it. The abundance of gas in the eruption medium implies that Stromboli is probably open to sea water. A simple model accounting for the observations and apparent flux of water into the magma yields an average apparent permeability of the volcano in the submicrodarcy range, very low values. These model values may reflect actual average permeabilities or exceedingly low permeability locally, such as near the vent itself. The model suggests that the bulk of the water would enter at the base of the volcanic pile. If so, this might account for the episodic geyser-like behavior of the volcano which may reflect a convective instability associated with influx of water.
Date: March 1, 1976
Creator: McGetchin, T. & Chouet, B. A.
Partner: UNT Libraries Government Documents Department
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