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[Photograph 2012.201.B0293B.0129]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Dr. Oswald Hoffmann, who preaches to an estimated 30 million persons every Sunday on the radio, will speak in Oklahoma City October 6 at a "Lutheran Hour" rally."
Date:
September 28, 1963
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Welding Rustproof Steels
The following experimental results will perhaps increase the knowledge of the process of welding rustproof steels. The experiments were made with two chrome-steel sheets and with two chrome-steel-nickel sheets having the composition shown in Table I.
Date:
September 1929
Creator:
Hoffmann, W.
Object Type:
Report
System:
The UNT Digital Library
Future Public Policy and Ethical Issues Facing the Agricultural and Microbial Genomics Sectors of the Biotechnology Industry: A Roundtable Discussion
On September 12, 2003, the University of Maryland School of Law's Intellectual Property and Law & Health Care Programs jointly sponsored and convened a roundtable discussion on the future public policy and ethical issues that will likely face the agricultural and microbial genomics sectors of the biotechnology industry. As this industry has developed over the last two decades, societal concerns have moved from what were often local issues, e.g., the safety of laboratories where scientists conducted recombinant DNA research on transgenic microbes, animals and crops, to more global issues. These newer issues include intellectual property, international trade, risks of genetically engineered foods and microbes, bioterrorism, and marketing and labeling of new products sold worldwide. The fast paced nature of the biotechnology industry and its new developments often mean that legislators, regulators and society, in general, must play ''catch up'' in their efforts to understand the issues, the risks, and even the benefits, that may result from the industry's new ways of conducting research, new products, and novel methods of product marketing and distribution. The goal of the roundtable was to develop a short list of the most significant public policy and ethical issues that will emerge as a result of …
Date:
September 12, 2003
Creator:
Hoffmann, Diane E.
Object Type:
Article
System:
The UNT Digital Library
Design of the fill/transfer station cryostat for the OMEGA cryogenic target system
General Atomics is designing, testing and fabricating a system for supplying cryogenic targets for the University of Rochester`s OMEGA laser system. A prototype system has demonstrated the filling of 1 mm diameter, 3 {micro}m wall plastic spheres to 111 MPa (1,100 atm) with deuterium and then cooling to 18 K to condense the fuel. The production design must be capable of routinely filling and cooling targets with a 50/50 mix of deuterium and tritium and transferring them to a device which places the targets into the focus of 60 laser beams. This paper discusses the design and analysis of the production Fill/Transfer Station cryostat. The cryostat has two major components, a fixed base and a removable dome. The joint between the base and the dome is similar to a bayonet fitting and is sealed by a room temperature elastomeric o-ring. Since the cryostat must be housed in a glovebox, its design is driven strongly by maintenance requirements. To reach the equipment inside the cryostat, the dome is simply unbolted and lifted. The inside of the cryostat is maintained at 16 K by a closed loop helium flow system. Gaseous helium at about 1.4 MPa (200 psi) flows through tubes which …
Date:
September 1997
Creator:
Gibson, C. R.; Charmin, C. M.; Del Bene, J. V.; Hoffmann, E. H.; Besenbruch, G. E. & Anteby, I.
Object Type:
Article
System:
The UNT Digital Library
Results of IEC 62804 Draft Round Robin Testing
Three crystalline silicon module designs were distributed in five replicas each to five laboratories for testing according to the IEC 62804 (Committee Draft) system voltage durability qualification test for crystalline silicon photovoltaic (PV) modules. The stress tests were performed in environmental chambers at 60 degrees C, 85% relative humidity, 96 h, and with module nameplate system voltage applied.
Date:
September 1, 2013
Creator:
Hacke, P.; Terwilliger, K.; Koch, S.; Weber, T.; Berghold, J.; Hoffmann, S. et al.
Object Type:
Presentation
System:
The UNT Digital Library
Beam foil spectroscopy of N = 3 to N = 2 transitions in highly stripped heavy ions. Revision 1
The spectroscopy of very highly ionized atoms provides an important testing ground for multi-electron atomic theory. We report preliminary experimental results on the n = 3 ..-->.. 2 spectra of Bi/sup +73/ and A/sup +69/ obtained at the GSI UNILAC accelerator. 19 refs., 4 figs.
Date:
September 1, 1986
Creator:
Dietrich, D.D.; Chandler, G.A.; Egan, P.O.; Ziock, K.P.; Mokler, P.H.; Reusch, S. et al.
Object Type:
Article
System:
The UNT Digital Library
Faculty Recital: 1994-09-26 – Pamela Mia Paul, piano
Access:
Use of this item is restricted to the UNT Community
A faculty artist recital performed at the UNT College of Music Concert Hall.
Date:
September 26, 1994
Creator:
Paul, Pamela Mia
Object Type:
Sound
System:
The UNT Digital Library
Studies in Medium Energy Physics. Final technical report
None
Date:
September 1, 1994
Creator:
Hoffmann, G. W.; Ray, R. L.; McDonough, J.; Betts, W.; Chen, X.; Green, A. et al.
Object Type:
Report
System:
The UNT Digital Library
Status Report on Studies of Recovery Boiler Composite Floor Tube Cracking
Cracking of the stainless steel layer of co-extruded 304L stainless steel/SA210 Gd A 1 carbon steel black liquor recovery boiler floor tubes has been identified as one of the most serious material problems in the pulp and paper industry. A DOE-funded study was initiated in 1995 with the goal of determining the cause of and possible solutions to this cracking problem. These studies have characterized tube cracking as well as the chemical and thermal environment and stress state of floor tubes. Investigations of possible cracking mechanisms indicate that stress corrosion cracking rather than thermal fatigue is a more likely cause of crack initiation. The cracking mechanism appears to require the presence of hydrated sodium sulfide and is most likely active during shut-downs and/or start-ups. Based on these results and operating experience, certain alloys appear to be more resistant than others to cracking in the floor environment, and certain operating practices appear to significantly lessen the likelihood of cracking. This report is the latest in a series of progress reports presented on this project.
Date:
September 12, 1999
Creator:
Eng, P.; Frederick, L. A.; Hoffmann, C. M.; Keiser, J. R.; Mahmood, J.; Maziasz, P. J. et al.
Object Type:
Article
System:
The UNT Digital Library
Current drive with fast waves, electron cyclotron waves, and neutral injection in the DIII-D tokamak
Current drive experiments have been performed on the DIII-D tokamak using fast waves, electron cyclotron waves, and neutral injection. Fast wave experiments were performed using a 4-strap antenna with 1 MW of power at 60 MHz. These experiments showed effective heating of electrons, with a global heating efficiency equivalent to that of neutral injection even when the single pass damping was calculated to be as small as 5%. The damping was probably due to the effect of multiple passes of the wave through the plasma. Fast wave current drive experiments were performed with a toroidally directional phasing of the antenna straps. Currents driven by fast wave current drive (FWCD) in the direction of the main plasma current of up to 100 kA were found, not including a calculated 40 kA of bootstrap current. Experiments with FWCD in the counter current direction showed little current drive. In both cases, changes in the sawtooth behavior and the internal inductance qualitatively support the measurement of FWCD. Experiments on electron cyclotron current drive have shown that 100 kA of current can be driven by 1 MW of power at 60 GHz. Calculations with a Fokker-Planck code show that electron cyclotron current drive (ECCD) can …
Date:
September 1, 1992
Creator:
Prater, R.; Petty, C. C.; Pinsker, R. I.; Chiu, S. C.; deGrassie, J. S.; Harvey, R. W. et al.
Object Type:
Article
System:
The UNT Digital Library
Direct electron heating and current drive with fast waves in DIII-D
Experiments on the DIII-D tokamak have been performed to evaluate noninductive current drive with direct electron absorption of the fast Alfven wave (FW) in the ion cyclotron range of frequencies. These experiments have employed a 2 MW 60 NM transmitter connected to a four-element toroidally phased array of loop antennas located at the outside midplane of the DIII-D vacuum vessel. Efficient direct electron heating was obtained with (0, [pi], 0, [pi]) antenna phasing; H-mode confinement was obtained with direct electron absorption of the fast wave as the sole source of auxiliary heating. Current drive experiments were performed with (0,[pi]/2,[pi],3[pi]/2) antenna phasing at fast wave power levels up to 1.2 MW. Preheating with 60 GHz ECH was used to increase the single-pass absorption of the fast wave with a directive spectrum. When the fast wave is lunched in the direction that aids the inductively driven current (co-current drive), up to 40% of the 0.4 MA plasma current is sustained noninductively. Counter-current drive strongly affects the sawtoothing behavior, and results in highly peaked electron temperature profiles (T[sub e](0) [approx lt] 6 keV) but much smaller driven currents.
Date:
September 1, 1992
Creator:
Pinsker, R. I.; Petty, C. C.; Callis, R. W.; Cary, W. P.; Chiu, S. C.; Freeman, R. L. et al.
Object Type:
Article
System:
The UNT Digital Library
Direct electron heating and current drive with fast waves in DIII-D
Experiments on the DIII-D tokamak have been performed to evaluate noninductive current drive with direct electron absorption of the fast Alfven wave (FW) in the ion cyclotron range of frequencies. These experiments have employed a 2 MW 60 NM transmitter connected to a four-element toroidally phased array of loop antennas located at the outside midplane of the DIII-D vacuum vessel. Efficient direct electron heating was obtained with (0, {pi}, 0, {pi}) antenna phasing; H-mode confinement was obtained with direct electron absorption of the fast wave as the sole source of auxiliary heating. Current drive experiments were performed with (0,{pi}/2,{pi},3{pi}/2) antenna phasing at fast wave power levels up to 1.2 MW. Preheating with 60 GHz ECH was used to increase the single-pass absorption of the fast wave with a directive spectrum. When the fast wave is lunched in the direction that aids the inductively driven current (co-current drive), up to 40% of the 0.4 MA plasma current is sustained noninductively. Counter-current drive strongly affects the sawtoothing behavior, and results in highly peaked electron temperature profiles (T{sub e}(0) {approx_lt} 6 keV) but much smaller driven currents.
Date:
September 1, 1992
Creator:
Pinsker, R. I.; Petty, C. C.; Callis, R. W.; Cary, W. P.; Chiu, S. C.; Freeman, R. L. et al.
Object Type:
Article
System:
The UNT Digital Library
Transverse-Momentum and Collision Energy Dependence of High p{sub T} Hadron Suppression in Au+Au Collisions at Ultrarelativistic Energies
No abstract prepared.
Date:
September 2, 2003
Creator:
Adams, J.; Adler, C.; Aggarwal, M. M.; Ahammed, Z.; Amonett, J.; Anderson, B. D. et al.
Object Type:
Article
System:
The UNT Digital Library
Event-by-event hexb pt hexb fluctuations in Au-Au collisions atsqrt(sNN) = 130 GeV
We present the first large-acceptance measurement of event-wise <p{sub t}> fluctuations in Au-Au collisions at {radical}s{sub NN} = 130 GeV. Significant nonstatistical fluctuations are observed. The measured fractional r.m.s. width excess of the event-wise <p{sub t}> distribution for the 15% most-central events for charged hadrons within |{eta}| < 1 and 0.15 {le} p{sub t} {le} 2 GeV/c is 13.7 {+-} 0.1(stat) {+-}1.3(syst)% relative to a statistical reference. The variation of charge-independent fluctuation excess with centrality is non-monotonic but smooth. Charge-dependent nonstatistical fluctuations are also observed.
Date:
September 2, 2003
Creator:
Adams, J.; Adler, C.; Aggarwal, M. M.; Ahammed, Z.; Amonett, J.; Anderson, B. D. et al.
Object Type:
Article
System:
The UNT Digital Library
Azimuthal anisotropy in Au+Au collisions at {radical}s{sub NN} = 200 GeV
The results from the STAR Collaboration on directed flow (v{sub 1}), elliptic flow (v{sub 2}), and the fourth harmonic (v{sub 4}) in the anisotropic azimuthal distribution of particles from Au+Au collisions at {radical}s{sub NN} = 200 GeV are summarized and compared with results from other experiments and theoretical models. Results for identified particles are presented and fit with a Blast Wave model. For v{sub 2}, scaling with the number of constituent quarks and parton coalescence is discussed. For v{sub 4}, scaling with v{sub 22} and quark coalescence predictions for higher harmonic flow is discussed. The different anisotropic flow analysis methods are compared and nonflow effects are extracted from the data. For v{sub 2}, scaling with the number of constituent quarks and parton coalescence are discussed. For v{sub 2}{sup 2} and quark coalescence are discussed.
Date:
September 29, 2004
Creator:
Adams, J.; Aggarwal, M. M.; Ahammed, Z.; Amonett, J.; Anderson, B. D.; Akhipkin, D. et al.
Object Type:
Article
System:
The UNT Digital Library
Hadronization geometry and charge-dependent two-particlecorrelation on momentum subspace (eta, phi) in Au-Au collisions atsqrt(sNN) = 130 GeV
We present the first measurements of charge-dependent two-particle correlations on momentum-space difference variables {eta}{sub 1}-{eta}{sub 2} (pseudorapidity) and {phi}{sub 1}-{phi}{sub 2} (azimuth) for primary charged hadrons with transverse momentum 0.15 {le} p{sub t} {le} 2 GeV/c and |{eta}| {le} 1.3 from Au-Au collisions at {radical}s{sub NN} = 130 GeV. We observe correlation structures not predicted by theory but consistent with evolution of hadron emission geometry with increasing centrality from one-dimensional fragmentation of color strings to higher-dimensional fragmentation of a hadron-opaque bulk medium.
Date:
September 23, 2004
Creator:
Adams, J.; Aggarwal, M. M.; Ahammed, Z.; Amonett, J.; Anderson, B. D.; Arkhipkin, D. et al.
Object Type:
Article
System:
The UNT Digital Library
Pion, kaon, proton and anti-proton transverse momentum distributions from p+p and d+Au collisions at sqrt(sNN) = 200 GeV
Identified mid-rapidity particle spectra of {pi}{sup {+-}}, K{sup {+-}}, and p({bar p}) from 200 GeV p+p and d+Au collisions are reported. A time-of-flight detector based on multi-gap resistive plate chamber technology is used for particle identification. The particle-species dependence of the Cronin effect is observed to be significantly smaller than that at lower energies. The ratio of the nuclear modification factor (R{sub dAu}) between (p+ {bar p}) and charged hadrons (h) in the transverse momentum range 1.2 < p{sub T} < 3.0 GeV/c is measured to be 1.19 {+-} 0.05(stat) {+-} 0.03(syst) in minimum-bias collisions and shows little centrality dependence. The yield ratio of (p + {bar p})/h in minimum-bias d+Au collisions is found to be a factor of 2 lower than that in Au+Au collisions, indicating that the Cronin effect alone is not enough to account for the relative baryon enhancement observed in heavy ion collisions at RHIC.
Date:
September 16, 2003
Creator:
Adams, J.; Adler, C.; Aggarwal, M. M.; Ahammed, Z.; Amonett, J.; Anderson, B. D. et al.
Object Type:
Article
System:
The UNT Digital Library
The Ranger (San Antonio, Tex.), Vol. 68, No. 2, Ed. 1 Friday, September 18, 1992
Weekly student newspaper from San Antonio College in San Antonio, Texas that includes campus news along with advertising.
Date:
September 18, 1992
Creator:
San Antonio College
Object Type:
Newspaper
System:
The Portal to Texas History
The Ranger (San Antonio, Tex.), Vol. 69, No. 2, Ed. 1 Friday, September 17, 1993
Weekly student newspaper from San Antonio College in San Antonio, Texas that includes campus news along with advertising.
Date:
September 17, 1993
Creator:
San Antonio College
Object Type:
Newspaper
System:
The Portal to Texas History
2D-ACAR Spectra of Insulating and Superconducting Y-123
An overview of the two-dimensional angular correlation (2D-ACAR) positron annihilation results for the three fundamental phases of YBa{sub 2}Cu{sub 3}O{sub x}, namely, the normal metal, the superconductor, and the insulator, is presented. In addition to the c-axis projected momentum density, the recent results for the a-axis projection as well as the insulating Y123 are discussed. The experimental results are compared and contrasted with the corresponding band theory predictions as far as possible in order to gain insight into the electronic structure and Fermiology of this archetypal high-{Tc} superconductor.
Date:
September 1, 1992
Creator:
Smedskjaer, L. C. & Bansil, A.
Object Type:
Report
System:
The UNT Digital Library
The Lampasas Daily Leader. (Lampasas, Tex.), Vol. 3, No. 786, Ed. 1 Wednesday, September 19, 1906
Daily newspaper from Lampasas, Texas that includes local, state, and national news along with advertising.
Date:
September 19, 1906
Creator:
Vernor, J. E.
Object Type:
Newspaper
System:
The Portal to Texas History
The Ranger (San Antonio, Tex.), Vol. 68, No. 1, Ed. 1 Friday, September 11, 1992
Weekly student newspaper from San Antonio College in San Antonio, Texas that includes campus news along with advertising.
Date:
September 11, 1992
Creator:
San Antonio College
Object Type:
Newspaper
System:
The Portal to Texas History
The University News (Irving, Tex.), Vol. 38, No. 2, Ed. 1 Tuesday, September 18, 2007
Weekly student newspaper from the University of Dallas in Irving, Texas that includes campus news and commentaries along with advertising.
Date:
September 18, 2007
Creator:
Crotty, Sarah
Object Type:
Newspaper
System:
The Portal to Texas History
LAMPF proposal status and summaries
This report contains the status and summaries of the proposed experiments for the Los Alamos Meson Physics Facility. Updates will be added periodically as new proposals are received.
Date:
September 1, 1978
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library