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[Letter from 1998 WASP Reunion Committee to All WASP, May 7, 1996]
Letter from 1998 WASP Reunion Committee to All WASP discussing the 1998 Sweetwater WASP Reunion.
Date:
May 7, 1996
Creator:
1998 WASP Reunion Committee
Object Type:
Letter
System:
The Portal to Texas History
[Letter from 1998 WASP Reunion Committee to All WASP, May 7, 1996]
Letter from 1998 WASP Reunion Committee to All WASP discussing plans for the National WASP Conference September 26-27, 1998 in Sweetwater, Texas.
Date:
May 7, 1996
Creator:
1998 WASP Reunion Committee
Object Type:
Letter
System:
The Portal to Texas History
Local Effects of Biased Electrodes in the Divertor of NSTX
The goal of this paper is to characterize the effects of small non-axisymmetric divertor plate electrodes on the local scrape-off layer plasma. Four small rectangular electrodes were installed into the outer divertor plates of NSTX. When the electrodes were located near the outer divertor strike point and biased positively, there was an increase in the nearby probe currents and probe potentials and an increase in the LiI light emission at the large major radius end of these electrodes. When an electrode located farther outward from the outer divertor strike point was biased positively, there was sometimes a significant decrease in the LiI light emission at the small major radius end of this electrode, but there were no clear effects on the nearby probes. No non-local effects were observed with the biasing of these electrodes.
Date:
May 7, 2012
Creator:
: S. Zweben, M.D. Campanell, B.C. Lyons, R.J. Maqueda, Y. Raitses, A.L. Roquemore and F. Scotti
Object Type:
Report
System:
The UNT Digital Library
[Invoice for 61 UC, May 1963]
Invoice for items sold to L. A. Adoue by A. Stanley & No. Company, including 2 galloons of 61 UC worth $7.94.
Date:
May 7, 1953
Creator:
A. Stanley & No Company
Object Type:
Text
System:
The Portal to Texas History
Search for Extra Dimensions Using Diphoton Events in 7 TeV Proton-Proton Collisions with the ATLAS Detector
None
Date:
May 7, 2013
Creator:
Aad, Georges
Object Type:
Article
System:
The UNT Digital Library
Early Fermi Gamma-ray Space Telescope Observations of the Quasar 3C454.3
This is the first report of Fermi Gamma-ray Space Telescope observations of the quasar 3C 454.3, which has been undergoing pronounced long-term outbursts since 2000. The data from the Large Area Telescope (LAT), covering 2008 July 7-October 6, indicate strong, highly variable {gamma}-ray emission with an average flux of {approx} 3 x 10{sup -6} photons cm{sup -2} s{sup -1}, for energies > 100 MeV. The {gamma}-ray flux is variable, with strong, distinct, symmetrically-shaped flares for which the flux increases by a factor of several on a time scale of about three days. This variability indicates a compact emission region, and the requirement that the source is optically thin to pair-production implies relativistic beaming with Doppler factor {delta} > 8, consistent with the values inferred from VLBI observations of superluminal expansion ({delta} {approx} 25). The observed {gamma}-ray spectrum is not consistent with a simple power-law, but instead steepens strongly above {approx} 2 GeV, and is well described by a broken power-law with photon indices of {approx} 2.3 and {approx} 3.5 below and above the break, respectively. This is the first direct observation of a break in the spectrum of a high luminosity blazar above 100 MeV, and it is likely direct …
Date:
May 7, 2009
Creator:
Abdo, A. A.
Object Type:
Article
System:
The UNT Digital Library
The Oklahoma Daily (Norman, Okla.), Vol. 18, No. 177, Ed. 1 Sunday, May 7, 1933
Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes local and campus news along with advertising.
Date:
May 7, 1933
Creator:
Abrams, Samuel K.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Redbird (Beaumont, Tex.), Vol. 3, No. 26, Ed. 1 Friday, May 7, 1954
Weekly newspaper from Lamar State College of Technology in Beaumont, Texas that includes local and campus news along with advertising.
Date:
May 7, 1954
Creator:
Abshier, Ann
Object Type:
Newspaper
System:
The Portal to Texas History
Pawhuska Daily Journal-Capital (Pawhuska, Okla.), Vol. 73, No. 90, Ed. 1 Friday, May 7, 1982
Daily newspaper from Pawhuska, Oklahoma that includes local, state, and national news along with advertising.
Date:
May 7, 1982
Creator:
Adams, Bill
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
[Letter from C. W. Adams to William M. Rice - May 7, 1867]
Letter from C. W. Adams to William M. Rice discussing the enclosed note of $3000.
Date:
May 7, 1867
Creator:
Adams, C. W.
Object Type:
Letter
System:
The Portal to Texas History
The Harper County Democrat (Buffalo, Okla.), Vol. 9, No. 2, Ed. 1 Friday, May 7, 1915
Weekly newspaper from Buffalo, Oklahoma that includes local, state, and national news along with advertising.
Date:
May 7, 1915
Creator:
Adams, E. Lee
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Pioneer Exponent. (Comanche, Tex.), Vol. 22, No. 36, Ed. 1 Friday, May 7, 1909
Weekly newspaper from Comanche, Texas that includes local, state, and national news along with advertising.
Date:
May 7, 1909
Creator:
Adams, Jesse M.
Object Type:
Newspaper
System:
The Portal to Texas History
The Edmond Enterprise (Edmond, Okla.), Vol. 14, No. 8, Ed. 1 Thursday, May 7, 1914
Weekly newspaper from Edmond, Oklahoma that includes local, state, and national news along with advertising.
Date:
May 7, 1914
Creator:
Adamson, Royce B.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Edmond Enterprise (Edmond, Okla.), Vol. 25, No. 51, Ed. 1 Thursday, May 7, 1925
Weekly newspaper from Edmond, Oklahoma that includes local, state, and national news along with advertising.
Date:
May 7, 1925
Creator:
Adamson, Royce B.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Fifteenth Street News (Midwest City, Okla.), Vol. 21, No. 28, Ed. 1 Friday, May 7, 1993
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
May 7, 1993
Creator:
Addington, Kathy
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Pawhuska Daily Journal-Capital (Pawhuska, Okla.), Vol. 72, No. 89, Ed. 1 Thursday, May 7, 1981
Daily newspaper from Pawhuska, Oklahoma that includes local, state, and national news along with advertising.
Date:
May 7, 1981
Creator:
Adkisson, Larry R.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Oklahoma Daily (Norman, Okla.), Vol. 39, No. 148, Ed. 1 Thursday, May 7, 1953
Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date:
May 7, 1953
Creator:
Adler, Dot
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Oilton Gusher (Oilton, Okla.), Vol. 9, No. 49, Ed. 1 Thursday, May 7, 1925
Weekly newspaper from Oilton, Oklahoma that includes local, state, and national news along with advertising.
Date:
May 7, 1925
Creator:
Admire, Eli L.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Raman Spectroscopy Characterization of amorphous carbon coatings for computer hard disks
Amorphous carbon films are used as protective coatings on magnetic media to protect the magnetic layer from wear and abrasion caused by the read/write head during hard disk drive start-up and operation. A key requirement in increasing the storage capacity and reliability of hard-disk drives is improving the performance of these coatings. This cooperative agreement used optical characterization techniques developed at LBNL to study thin-film hard disk media produced by Seagate Technology, major US hard drive manufacturer. The chief scientific goal was relating quantitatively the results of the optical characterization to the underlying chemical structure of the overcoat. In a collaboration with Seagate, LBNL, and Cambridge University, optical and electron-based characterization were used to evaluate the chemical structure of overcoats. The sp3 fraction of the sputtered amorphous carbon films was measured quantitatively for the first time and related to the optical spectroscopy results. This work and other selected aspects of the research performed under the agreement were presented at technical meetings and published in the open literature. The chief technical goal was designing manufacturing processes for the protective carbon overcoat for use in new generations of Seagate disk drives. To this end, joint research carried out under this agreement enabled …
Date:
May 7, 1998
Creator:
Ager, Joel W., III
Object Type:
Report
System:
The UNT Digital Library
Aging and Fracture of Human Cortical Bone and Tooth Dentin
Mineralized tissues, such as bone and tooth dentin, serve as structural materials in the human body and, as such, have evolved to resist fracture. In assessing their quantitative fracture resistance or toughness, it is important to distinguish between intrinsic toughening mechanisms which function ahead of the crack tip, such as plasticity in metals, and extrinsic mechanisms which function primarily behind the tip, such as crack bridging in ceramics. Bone and dentin derive their resistance to fracture principally from extrinsic toughening mechanisms which have their origins in the hierarchical microstructure of these mineralized tissues. Experimentally, quantification of these toughening mechanisms requires a crack-growth resistance approach, which can be achieved by measuring the crack-driving force, e.g., the stress intensity, as a function of crack extension ("R-curve approach"). Here this methodology is used to study of the effect of aging on the fracture properties of human cortical bone and human dentin in order to discern the microstructural origins of toughness in these materials.
Date:
May 7, 2008
Creator:
Ager, Joel; Koester, Kurt J.; Ager, Joel W., III & Ritchie, Robert O.
Object Type:
Article
System:
The UNT Digital Library
Simultaneous Observations of PKS 2155--304 with H.E.S.S., Fermi, RXTE and ATOM: Spectral Energy Distributions and Variability in a Low State
We report on the first simultaneous observations that cover the optical, X-ray, and high-energy gamma-ray bands of the BL Lac object PKS 2155-304. The gamma-ray bands were observed for 11 days, between 2008 August 25 and 2008 September 6 (MJD 54704-54715), jointly with the Fermi Gamma-ray Space Telescope and the HESS atmospheric Cherenkov array, providing the first simultaneous MeV-TeV spectral energy distribution (SED) with the new generation of {gamma}-ray telescopes. The ATOM telescope and the RXTE and Swift observatories provided optical and X-ray coverage of the low-energy component over the same time period. The object was close to the lowest archival X-ray and very high energy (VHE; >100 GeV) state, whereas the optical flux was much higher. The light curves show relatively little ({approx}30%) variability overall when compared to past flaring episodes, but we find a clear optical/VHE correlation and evidence for a correlation of the X-rays with the high-energy spectral index. Contrary to previous observations in the flaring state, we do not find any correlation between the X-ray and VHE components. Although synchrotron self-Compton models are often invoked to explain the SEDs of BL Lac objects, the most common versions of these models are at odds with the correlated …
Date:
May 7, 2009
Creator:
Aharonian, F.; Akhperjanian, A. G.; Anton, G.; Barres de Almeida, U.; Bazer-Bachi, A. R.; Becherini, Y. et al.
Object Type:
Article
System:
The UNT Digital Library
Observation of high energy atmospheric neutrinos with antarctic muon and neutrino detector array
The Antarctic Muon and Neutrino Detector Array (AMANDA) began collecting data with ten strings in 1997. Results from the first year of operation are presented. Neutrinos coming through the Earth from the Northern Hemisphere are identified by secondary muons moving upward through the array. Cosmic rays in the atmosphere generate a background of downward moving muons, which are about 10{sup 6} times more abundant than the upward moving muons. Over 130 days of exposure, we observed a total of about 300 neutrino events. In the same period, a background of 1.05 x 10{sup 9} cosmic ray muon events was recorded. The observed neutrino flux is consistent with atmospheric neutrino predictions. Monte Carlo simulations indicate that 90 percent of these events lie in the energy range 66 GeV to 3.4 TeV. The observation of atmospheric neutrinos consistent with expectations establishes AMANDA-B10 as a working neutrino telescope.
Date:
May 7, 2002
Creator:
Ahrens, J.; Andres, E.; Bai, X.; Barouch, G.; Barwick, S. W.; Bay, R. C. et al.
Object Type:
Article
System:
The UNT Digital Library
[Letter from William J. Aicklen to I. H. Kempner, May 7, 1956]
Letter from William J. Aicklen to I. H. Kempner congratulating him and Henrietta Leonora Kempner on their pictures being in the paper as well as the article "on the place of the Kempner Family in Texas History".
Date:
May 7, 1956
Creator:
Aicklen, William J.
Object Type:
Letter
System:
The Portal to Texas History
The Crockett Courier (Crockett, Tex.), Vol. 25, No. 15, Ed. 1 Thursday, May 7, 1914
Weekly newspaper from Crockett, Texas that includes local, state and national news along with advertising.
Date:
May 7, 1914
Creator:
Aiken, W. W.
Object Type:
Newspaper
System:
The Portal to Texas History