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Microwave Spectral Tables: [Volume 1.] Diatomic Molecules (open access)

Microwave Spectral Tables: [Volume 1.] Diatomic Molecules

From Abstract: "For about 1500 spectral lines of diatomic molecules observed by coherent radiation techniques, measured frequencies, assigned quantum numbers, and newly computed intensities are given."
Date: December 1, 1964
Creator: Wacker, Paul F.; Mizushima, Masataka; Peterson, Jean D. & Ballard, Joe R.
Object Type: Report
System: The UNT Digital Library

Map of Colorado Territory, Compiled from Government Maps & actual Surveys made in 1861.

Map of Colorado Territory compiled from government maps and surveys. Includes place names, rivers and some geographical features, with relief shown by hachures.
Date: November 1, 1861
Creator: Case, Francis M.
Object Type: Map
System: The UNT Digital Library
[Letter from Emily Rimmer Vasquez, LULAC Junior Director, to All Men's and Ladies Councils - 1954-11-01] (open access)

[Letter from Emily Rimmer Vasquez, LULAC Junior Director, to All Men's and Ladies Councils - 1954-11-01]

Letter from Emily Rimmer Vasquez, Junior Director, to All Men's and Ladies Councils instructing the Junior Councils that there must division of Districts and Supervisors appointed. The letter includes active councils and districts in the states of Texas, New Mexico and Colorado. Vasquez gives further instructions on the duties of Junior District Supervisor.
Date: November 1, 1954
Creator: Vasquez, Emily Rimmer
Object Type: Letter
System: The Portal to Texas History
Scouting, Volume 1, Number 4, June 1, 1913 (open access)

Scouting, Volume 1, Number 4, June 1, 1913

Semi-monthly publication of the Boy Scouts of America, written for Boy Scout leaders, officials, and others interested in the work of the Scouts. It includes articles about events and activities, updates from the national headquarters, topical columns and essays, and news from various chapters nationwide.
Date: June 1, 1913
Creator: Boy Scouts of America
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Extraction and Recovery of Mercury and Lead From Aqueous Waste Streams Using Redox-Active Layered Metal Chalcogenides. Annual Progress Report, September 15, 1996--September 14, 1997 (open access)

Extraction and Recovery of Mercury and Lead From Aqueous Waste Streams Using Redox-Active Layered Metal Chalcogenides. Annual Progress Report, September 15, 1996--September 14, 1997

'The authors have begun to examine the extraction and recovery of heavy elements from aqueous waste streams using redox-active metal chalcogenides. They have been able to prepare extractants from known chalcogenide starting materials, studied the efficacy of the extractants for selective removal of soft metal ions from aqueous phases, studied the deactivation of extractants and the concomitant recovery of soft metal ions from the extractants, and characterized all of the solids and solutions thus far in the study. The study was proposed as two parallel tasks: Part 1 and Part 2 emphasize the study and development of known metal chalcogenide extractants and the synthesis and development of new metal chalcogenide extractants, respectively. The two tasks were divided into sub-sections that study the extractants and their chemistry as detailed below: Preparation and reactivity of metal chalcogenide host solids Extraction of target waste (guest) ions from simulated waste streams Examination of the guest-host solids recovery of the guest metal and reuse of extractant Each section of the two tasks was divided into focused subsections that detail the specific problems and solutions to those problems that were proposed. The extent to which those tasks have been accomplished and the continued efforts of the …
Date: January 1, 1997
Creator: Dorhout, P.K. & Strauss, S.H.
Object Type: Report
System: The UNT Digital Library
The production of {pi}{sup {+-}}, K{sup {+-}}, p, k{sup 0} and {Lambda}{sup 0} in hadronic Z{sup 0} decays (open access)

The production of {pi}{sup {+-}}, K{sup {+-}}, p, k{sup 0} and {Lambda}{sup 0} in hadronic Z{sup 0} decays

The authors have measured production fractions and spectra for {pi}{sup {+-}}, K{sup {+-}} and p, and production spectra for K{sup 0} and {Lambda}{sup 0} in both hadronic Z{sup 0} decays and a Z{sup 0} {yields} light quark (uds) subset at SLD. The SLD Cherenkov Ring Imaging Detector was used to identify charged hadrons. The CCD vertex detector was used to select the enriched uds sample. For the global sample, the results are consistent with previous experiments. The authors observe a clear flavor dependence in production spectra, but only a small effect in hadron fractions and {xi} = ln(1/x{sub p}) peak positions.
Date: August 1, 1995
Creator: Baird, K.
Object Type: Article
System: The UNT Digital Library
Extraction and Recovery of Mercury and Lead From Aqueous Waste Streams Using Redox-Active Layered Metal Chalcogenides. 1998 Annual Progress Report (open access)

Extraction and Recovery of Mercury and Lead From Aqueous Waste Streams Using Redox-Active Layered Metal Chalcogenides. 1998 Annual Progress Report

'Mercury and other highly-toxic heavy metals such as cadmium and lead are present in many aquatic environments, and the remediation of such environments or the avoidance of heavy-metal contamination in the first place is an area of active interest. In recent years tougher environmental regulations and the high initial cost of new, more effective, and more selective extractants has made the reuse of extractant materials and the minimization of secondary waste volume a focus of their scientific effort. The authors research has involved the investigation of redox-active layered metal chalcogenides as selective, effective, and redox-recyclable extractants for heavy metals from aqueous solution.'
Date: June 1, 1998
Creator: Dorhout, P.K. & Strauss, S.H.
Object Type: Report
System: The UNT Digital Library
Long-Term Risk From Actinides in the Environment: Modes of Mobility. 1998 Annual Progress Report (open access)

Long-Term Risk From Actinides in the Environment: Modes of Mobility. 1998 Annual Progress Report

'The mobility of actinides in surface soils is a key issue of concern at several DOE facilities in arid and semiarid environments, including Rocky Flats, Hanford, Nevada Test Site, Idaho National Engineering Laboratory, and Los Alamos National Laboratory and the Waste Isolation Pilot Plant (WIPP). Key sources of uncertainty in assessing Pu mobility are the magnitudes of mobility resulting from three modes of transport: (1) wind erosion, (2) water erosion, and (3) vertical migration. Each of these three processes depend on numerous environmental factors and they compete with one another, particularly for actinides in very shallow soils ({approximately} 1 \265m). The overall goal of the study is to quantify the mobility of soil actinides from all three modes. The authors study is using field measurements, laboratory experiments, and ecological modeling to address these three processes at three DOE facilities where actinide kinetics are of concern: WIPP, Rocky Flats, and Hanford. Wind erosion is being measured with suite of monitoring equipment, water erosion is being studied with rainfall simulation experiments, vertical migration is being studied in controlled laboratory experiments, and the three processes are being integrated using ecological modeling. Estimates for clean up of soil actinides for the extensive tracts of …
Date: June 1, 1998
Creator: Breshears, D. D.; Whicker, J. J.; Ibrahim, S. A.; Whicker, F. W.; Hakonson, T. E. & Kirchner, T.
Object Type: Report
System: The UNT Digital Library
Detection of blockages in process piping Los Alamos National Laboratory. Final report (open access)

Detection of blockages in process piping Los Alamos National Laboratory. Final report

The attached reports and proposal summarize the work to date for the revised Ultrasonic Resonance Interferometry system. The most recent set of experiments, to determine the accuracy of the implementation of a new calibration curve to account for the variation of the wave speed with temperature, were never completed due to lack of funding. The general focus of the ongoing work, outlined in the weekly reports, had been improvements in accuracy of the measurement system using software modifications. The future focus of the project, as outlined in the attached proposal, was to incorporate a thermal conductivity probe with the ultrasonic measurement system to allow measurement of fluids which have a bimodal wavespeed vs. molarity relation.
Date: October 1, 1994
Creator: Histand, M.B.
Object Type: Report
System: The UNT Digital Library
Direct Methane Conversion to Methanol. Annual Report, October 1993--September 1994 (open access)

Direct Methane Conversion to Methanol. Annual Report, October 1993--September 1994

We proposed to demonstrate the effectiveness of a catalytic membrane reactor (a ceramic membrane combined with a catalyst) to selectively produce methanol by partial oxidation of methane. Methanol is used as a chemical feedstock, gasoline additive, and turbine fuel. Methane partial oxidation using a catalytic membrane reactor has been determined as one of the promising approaches for methanol synthesis from methane. In the original proposal, the membrane was used to selectively remove methanol from the reaction zone before carbon oxides form, thus increasing the methanol yield. Methanol synthesis and separation in one step would also make methane more valuable for producing chemicals and fuels. However, all the membranes tested in this laboratory lost their selectivity under the reaction conditions. A modified non-isothermal, non-permselective membrane reactor then was built and satisfactory results were obtained. The conversion and selectivity data obtained in this laboratory were better than that of the most published studies.
Date: January 1, 1995
Creator: Noble, R. D. & Falconer, J. L.
Object Type: Report
System: The UNT Digital Library
A Preliminary Improved Test of the Flavor Independence of Strong Interactions (open access)

A Preliminary Improved Test of the Flavor Independence of Strong Interactions

The authors present an improved comparison of the strong couplings of gluons to light (u, d, and s), c, and b quarks, determined from multijet rates in flavor-tagged samples of hadronic Z{sup 0} decays recorded with the SLC Large Detector at the SLAC Linear Collider between 1993 and 1995. Flavor separation on the basis of lifetime and decay multiplicity differences among hadrons containing light, c, and b quarks was made using the SLD precision tracking system, yielding tags with high purity and low bias against {ge} 3-jet final states. They find: {alpha}{sub s}{sup uds}/{alpha}{sub s}{sup all} = 0.997 {+-} 0.011(stat) {+-} 0.011(syst) {+-} 0.005(theory), {alpha}{sub s}{sup c}/{alpha}{sub s}{sup all} = 0.984 {+-} 0.042 {+-} 0.053 {+-} 0.022, {alpha}{sub s}{sup b}/{alpha}{sub s}{sup all} = 1.022 {+-} 0.019 {+-} 0.023 {+-} 0.012.
Date: June 1, 1997
Creator: Abe, K.; Abe, K.; Akagi, T. & Collaboration, SLD
Object Type: Article
System: The UNT Digital Library
Production of {pi}{sup {+-}}, K{sup {+-}}, K{sup 0}, K*{sup 0}, {phi}, p and {Lambda}{sup 0} in Hadronic Z{sup 0} Decays (open access)

Production of {pi}{sup {+-}}, K{sup {+-}}, K{sup 0}, K*{sup 0}, {phi}, p and {Lambda}{sup 0} in Hadronic Z{sup 0} Decays

The authors have measured production rates as a function of momentum of the identified hadrons {pi}{sup +}, K{sup +}, K{sup 0}, K*{sup 0}, {phi}, p, {Lambda}{sup 0} and their antihadrons in inclusive hadronic Z{sup 0} decays, as well as separately in decays into light, c and b flavors. In addition they have compared hadron and antihadron production rates in light quark (rather than antiquark) jets. The SLD Cherenkov Ring Imaging Detector was used to identify charged hadrons. The vertex detector was used to tag high-purity samples of light- and b-flavor events. The electron beam polarization was used to tag samples of quark and antiquark jets. Clear flavor dependences are observed, consistent with expectations based upon measured production and decay properties of heavy hadrons. They use the light-flavor results to test the predictions of MLLA QCD and of various fragmentation models. Differences between hadron and antihadron production in light quark jets are observed at high momentum fraction, providing direct evidence that higher-momentum particles are more likely to contain a primary quark or antiquark, and they use these results to make a new direct measurement of strangeness suppression in the jet fragmentation process.
Date: June 1, 1997
Creator: Abe, K.; Abe, K.; Akagi, T. & Collaboration, SLD
Object Type: Article
System: The UNT Digital Library
Development of a kinetic model and calculation of radiation dose estimates for sodium iodide-{sup 131}I in athyroid individuals (open access)

Development of a kinetic model and calculation of radiation dose estimates for sodium iodide-{sup 131}I in athyroid individuals

The treatment for some thyroid carcinomas involves surgically removing the thyroid gland and administering the radiopharmaceutical Sodium iodide-{sup 131}I (NaI). A diagnostic dose of NaI is given to the patient to determine if remnant tissue from the gland remains or larger doses are administered in order to treat the malignant tissue. Past research regarding NaI uptake and retention in euthyroid individuals (normal functioning thyroid) reveal that radioiodine concentrates mainly in the thyroid tissue and the remaining material is excreted from the body. The majority of radioiodine in athyroid (without thyroid) individuals is also eliminated from the body; however, there has been recent evidence of a long-term retention phase for individuals with no radioiodine concentrating tissue. The general purpose of this study was to develop a kinetic model and estimate the absorbed dose to athyroid individuals regarding the distribution and retention of NaI.
Date: July 1, 1997
Creator: Rodriguez, M.
Object Type: Report
System: The UNT Digital Library
Zeolite Membranes for Gas Separations (open access)

Zeolite Membranes for Gas Separations

Silicalite-1, a pure silica zeolite, was deposited on a tubular, asymmetric, {gamma}-alumina support. Single gas permeation experiments with N{sub 2}, CH{sub 4}, and CO{sub 2} were carried out on the membrane. Separation experiments for N{sub 2}/CH{sub 4} mixtures were also conducted. Single-gas permeation of H{sub 2} and separation of H{sub 2}/SF{sub 6} mixture were also carried out with the membrane. Composite membranes of silicalite and Ni-SAPO-34 were also fabricated, but no CO{sub 2}/H{sub 2} selectivity was found. It is proposed to use these membranes for methanol synthesis and separation, and for separating H{sub 2} from gasification products for use as fuel cell fuel, etc.
Date: June 1, 1995
Creator: Falconer, J. & Noble, R.
Object Type: Article
System: The UNT Digital Library
[Park Hill Church of Christ Directory] (open access)

[Park Hill Church of Christ Directory]

"Members of Park Hill Church" dated September 1, 1939. Shows names and addresses.
Date: September 1, 1939
Creator: unknown
Object Type: Text
System: The Portal to Texas History
[Denver Post Article on Blanche Perry] (open access)

[Denver Post Article on Blanche Perry]

Clipping of a newspaper article from the Denver Post, dated December 1, 1958, entitled "Woman, 68, Expected to Die of TB in '24, Completes 212th Painting for Her Church." Contains photograph of Perry touching up the baptistry painting of the Thornton Church of Christ in Denver. Article contains history of Perry and how she became involved in creating baptistry paintings.
Date: December 1, 1958
Creator: Prouty, Dick
Object Type: Text
System: The Portal to Texas History
Colorado: Colorado's Clean Energy Resources and Economy (Brochure) (open access)

Colorado: Colorado's Clean Energy Resources and Economy (Brochure)

This document highlights the Office of Energy Efficiency and Renewable Energy's investments and impacts in the state of Colorado.
Date: March 1, 2013
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Project Trinidad: Delta Series Numbers 1, 2, and 3, Sopris, Colorado. (open access)

Project Trinidad: Delta Series Numbers 1, 2, and 3, Sopris, Colorado.

None
Date: January 1, 1970
Creator: King, K. W.
Object Type: Report
System: The UNT Digital Library
Exploratory Study of Metal Vapor Lasers Operating in the Ultra-Violet at Kilowatt Power Levels. Technical Progress Report, June 1, 1975--May 1, 1976 (open access)

Exploratory Study of Metal Vapor Lasers Operating in the Ultra-Violet at Kilowatt Power Levels. Technical Progress Report, June 1, 1975--May 1, 1976

Three laser research programs are proposed: (1) to find new laser systems in the wavelength region between 2000 and 4500 A; (2) to attempt scaling lasers to high output power; and (3) to focus research on metal vapor laser systems which have promise of high efficiency. Twenty-eight new laser transitions from Cu II spanning the wavelength region from 2486 to 7988 A have been observed. A list of papers and conferences are given that summarize the metal vapor laser research. (TFD)
Date: March 1, 1976
Creator: Collins, G.J.
Object Type: Report
System: The UNT Digital Library
Technical Progress Report, November 1, 1973--November 1, 1974 (open access)

Technical Progress Report, November 1, 1973--November 1, 1974

None
Date: November 1, 1974
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Comment on Macroscopic Analysis of (P,N) Reactions (open access)

Comment on Macroscopic Analysis of (P,N) Reactions

None
Date: January 1, 1973
Creator: Kunz, P. D.; Rickertsen, L. D. & Hoffmann, G. W.
Object Type: Report
System: The UNT Digital Library
Radon Progeny Control in Buildings. Final Report (open access)

Radon Progeny Control in Buildings. Final Report

None
Date: May 1, 1973
Creator: Culot, M.V.J.; Olson, H.G. & Schiager, K.J.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Technical Progress Report. (open access)

Technical Progress Report.

None
Date: January 1, 1971
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Colorado State University Solar Heated and Cooled House (open access)

Colorado State University Solar Heated and Cooled House

None
Date: January 1, 1974
Creator: Lof, G.O.G.
Object Type: Article
System: The UNT Digital Library