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Separation of Azeotropes by Means of Diffusion through Porous Membranes

Description: Thesis discussing experiments to separate azeotropes into pure components testing eleven minimum boiling point azeotropic systems: (1) acetone-methanol, (2) carbon tetrachloride-ethyl acetate, (3) cyclohexane-ethanol, (4) benzene-isopropanol, (5) benzene-n-propanol, (6) benzene-cyclohexane, (7) benzene-methanol, (8) benzene-ethanol, (9) acetone-carbon, (10) isopropoanol-water, and (11) ethanol-water.
Date: October 1953
Creator: Hagerbaumer, Donald H. & Kammermeyer, Karl
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Condensation of Metal Vapors: Mercury and the Kinetic Theory of Condensation

Description: Report issued by the Argonne National Laboratory discussing condensation theories of metal vapors. As stated in the introduction, "the objectives of this research then are critical analysis of condensation theories and data for metal vapors and experimental evaluation of the resistance to condensation for a representative metal such as mercury" (p. 18). This report includes tables, illustrations, and photographs.
Date: October 1964
Creator: Wilhelm, Donald J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Environmental Hazards Assessment Program annual report, [June 1992--June 1993]

Description: This report, the Environment Hazards Assessment Program (EHAP) Annual Report, is the second of three reports that document activities under the EHAP grant and details progress made during the first year of the grant. The first year was devoted to the development of a working program implementation plan. During the developmental process some key objectives were achieved such as developing a Doctor of Philosophy degree program in Environmental Studies at MUSC (Medical University of South Carolina… more
Date: October 1, 1993
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Finite Amplitude Stress Waves in Rocks

Description: Production of new surface area by fracturing of rock behind an explosive-initiated high amplitude wave is probably an important mechanism for energy absorption in the region near n explosion in rock. Explosive-initiated high amplitude pulses in cylinders of three different rocks and two concretes were studied to determine the pulse amplitude need to damage the cylinders. An average high amplitude wave velocity of half the elastic wave velocity was observed in a porous limestone. Elastic theory … more
Date: October 1, 1959
Creator: Grine, Donald Reaville
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Proximity effect in Cu-Nb-Sn composites

Description: Heat capacities have been measured in the presence of magnetic fields for Cu-Nb and Cu-Nb/sub 3/Sn in situ composites in order to determine the size of the superconducting pair potential which is induced in the normal Cu region as a function of magnetic field. For the Cu-Nb composites the induced pair potential is found to be about 0.35 MeV in zero field, in agreement with de Gennes boundary conditions. With the application of a magnetic field, the energy gap declines quickly and above about 17… more
Date: October 1, 1981
Creator: Shum Eucker, S.S.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Path of Carbon in Photosynthesis. XXI. The Cyclic Regenerationof Carbon Dioxide Acceptor

Description: Photosynthesizing plants have been exposed to C{sup 14}O{sub 2} for short periods of time (0.4 to 15 sec.) and the products of carbon dioxide reduction analyzed by paper chromatography and radio autography. Methods have been developed for the degradation of ribulose and sedoheptulose. These sugars, obtained as their phosphate esters from the above C{sup 14}O{sub 2} exposures and from other experiments, have been degraded and their distribution of radiocarbon determined. The distribution of radi… more
Date: October 1, 1953
Creator: Bassham, J. A.; Benson, A. A.; Kay, Lorel D.; Harris, Anne Z.; Wilson, A. T. & Calvin, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Role of the National Laboratory in Improving Secondary Science Education

Description: While the role of science, technology, engineering, and mathematics (STEM) teachers in our education system is obvious, their role in our economic and national security system is less so. Our nation relies upon innovation and creativity applied in a way that generates new technologies for industry, health care, and the protection of our national assets and citizens. Often, it is our science teachers who generate the excitement that leads students to pursue science careers. While academia provid… more
Date: October 20, 2008
Creator: White,K.; Morris, M. & Stegman, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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[News Script: Regents]

Description: Script from the WBAP-TV/NBC station in Fort Worth, Texas, relating a news story.
Date: October 31, 1969, 10:00 p.m.
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Script
Partner: UNT Libraries Special Collections
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[News Script: Regents]

Description: Script from the WBAP-TV/NBC station in Fort Worth, Texas, relating a news story.
Date: October 31, 1969, 6:00 p.m.
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Script
Partner: UNT Libraries Special Collections
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An Assessment of Energy-Related Career Paths of Senior Industrial Assessment Center Program Alumni

Description: The purpose of this study was to assess the career paths of alumni from the U.S. Department of Energy's Industrial Assessment Center (IAC) program. IAC was originally named the Energy Analysis and Diagnostic Center (EADC) program when it began in association with four schools in 1976. The current IAC program provides funding to 26 engineering colleges, located in centers across the United States, to conduct energy, waste, and productivity assessments for small- to medium-sized manufacturing est… more
Date: October 20, 2003
Creator: Martin, M.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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High-Speed, High-Resolution Analog Waveform Sampling in VLSI Technology

Description: Switched-capacitor analog memories are well-suited to a number of applications where a continuous digitization of analog signals is not needed. In data acquisition systems based on the use of an analog memory, the input waveforms are sampled and stored at a high rate for a limited period of time, and the analog samples are then retrieved at a lower rate and digitized with a slow ADC before new waveforms are acquired. The advantages of using an analog memory are lower overall power dissipation a… more
Date: October 13, 1998
Creator: Haller, Gunther
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Thermotransport of hydrogen and deuterium in vanadium, niobium and tantalum alloys

Description: Heats of transport have been determined for thermotransport of hydrogen and deuterium in pure vanadium, niobium and tantalum; in vanadium alloyed with either niobium, titanium or chromium; and in niobium-tantalum alloys. In all cases, thermotransport was toward colder regions and was significantly greater for deuterium than for hydrogen. A mass spectrometric technique was used to simultaneously measure heats of transport for hydrogen and deuterium in a single specimen containing both isotopes. … more
Date: October 1, 1981
Creator: Smith, M.F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Study of Metal-1.10-Phenanthroline Complex Equilibria by Potentiometric Measurement

Description: Technical report. From Abstract : "The silver-1,10-phenanthroline system has been studied and the stability constants determined for the 1:1 and 2:1 complexes using the silver electrode. This known system was then used to study the complexes of 1,10-phenanthroline with other metals. The log βn values found for the over-all stoichiometric stability constants are as follows: Ag, 5.02, 12.07; Mn, 3.88, 7.04, 10.11; Cd, 5.93, 10.52, 14.30; Zn, 6.83, 12.05, 16.92. The stoichiometric stability consta… more
Date: October 25, 1962
Creator: Dale, John M. & Banks, Charles V.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Advance concepts for conversion of syngas to liquids. Quarterly report, September 28, 1994--January 28, 1995

Description: In this study, MeAPO-36 was crystallized from a reaction mixture of molar composition 1.8 Pr{sub 3}N; 0.156 MgO; 0.97 Al{sub 2}O{sub 3}; 0.936 P{sub 2}O{sub 5}; 41.4H{sub 2}O; and 0.31 HOAC at 100 C for 48 h followed by 150 C for 24 to 72 h. Its formation was dependent on the source of aluminum, template concentration and the reaction temperature and time. MeAPO-5 was a competing impurity phase and its formation can be suppressed by changes in the reaction conditions. The report includes a disc… more
Date: October 1, 1995
Creator: Szostak, R.; Abotsi, G.; Mitchell, M. & Ingram, C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Mass-spectrometric determination of trace elements in aqueous media without preconcentration

Description: Feasibility of using a low pressure glow discharge as an ion source for the mass spectrometric determination of trace elements in aqueous media was investigated. A cryogenically cooled hollow cathode ion source was developed to analyze aqueous samples without external preconcentration. Aqueous solutions containing seventy elements were analyzed and the detection limits, sensitivity factors, and linear regression correlation coefficients were determined. A standard test solution of trace element… more
Date: October 1, 1981
Creator: Foss, G. O.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
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Feasibility Studies of in-Situ Coal Gasification in the Warrior Coal Field. Quarterly Report

Description: Support studies for in-situ gasification involved design and construction of a laboratory combustor, measurement of the physical and chemical properties of coke, experiments with the shrinking core combustion model, and calculations of in-situ combustion in thin seams and a review of the in-situ gasification experiments at Gorgas, Alabama. (LTN)
Date: October 1, 1978
Creator: Douglas, George W. & McKinley, Marvin D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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New amorphous magnetic materials of Fe-B-Be and Fe-B-Au

Description: Substitution of Be for B in the amorphous binary alloy Fe/sub 82/B/sub 18/ caused an initial increase in saturation magnetization (M/sub s/) to a maximum of 200 emu/g at 4.2K, followed by a decrease for alloys with more than 4 at. % Be. Concurrently, the Curie temperature (T/sub C/) of the Fe/sub 82/B/sub 18-x/Be/sub x/ alloy decreased progressively with Be content. These changes in M/sub s/ and T/sub C/ differ from those observed in Fe-B-M' metallic glasses, where M' is another metalloid (P, C… more
Date: October 1, 1981
Creator: Severin, C.S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Feasibility Studies of in-Situ Coal Gasification in the Warrior Coal Field. Quarterly Report

Description: Studies in support of in-situ gasification involved bench-scale combustor experiments using forward combustion and coke as a fuel. Measurements of the thermal conductivity, thermal diffusivity and reactivity were made on several cokes over a range of temperatures. (LTN)
Date: October 1, 1979
Creator: Douglas, George W. & McKinley, Marvin D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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