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1 Corinthians 1:18-31
Lecture given Monday, February 24, 1992, 8:30 AM at Abilene Christian University
Date:
February 24, 1992
Creator:
Holladay, Carl
Object Type:
Sound
System:
The Portal to Texas History
1 Corinthians 2:6-16
Lecture given Monday, February 24, 1992, 11:00 AM at Abilene Christian University
Date:
February 24, 1992
Creator:
Holladay, Carl
Object Type:
Sound
System:
The Portal to Texas History
1 Corinthians 4:8-13
Lecture given Monday, February 24, 1992, 3:30 PM at Abilene Christian University
Date:
February 24, 1992
Creator:
Holladay, Carl
Object Type:
Sound
System:
The Portal to Texas History
1 Corinthians 14 - the Edifying Assembly
Lecture given Tuesday, February 25, 1992, 3:30 PM at Abilene Christian University
Date:
February 25, 1992
Creator:
Ferguson, Everett
Object Type:
Sound
System:
The Portal to Texas History
1 Corinthians 14 - The Edifying Assembly
Lecture given Tuesday, February 25, 1992, 8:30 AM at Abilene Christian University
Date:
February 25, 1992
Creator:
Ferguson, Everett
Object Type:
Sound
System:
The Portal to Texas History
1 Corinthians 14 - The Edifying Assembly
Lecture given Tuesday, February 25, 1992, 11:00 AM at Abilene Christian University
Date:
February 25, 1992
Creator:
Ferguson, Everett
Object Type:
Sound
System:
The Portal to Texas History
1/m<sub>c</sub> Terms in lambda<sup>+</sup><sub>c</sub> Semileptonic Decays
We use the heavy quark effective theory to investigate the form factors that describe the semileptonic decays lambda<sup>+</sup><sub>c</sub> -> lambda e<sup>+</sup> nu, to order 1/m<sub>c</sub>. We find that a total of four form factors are needed to this order, in contrast with two form factors to leading order, and six form factors in the most general case. We point out some relationships that arise among the general form factors.
Date:
February 1, 1992
Creator:
Roberts, Winston
Object Type:
Article
System:
The UNT Digital Library
1-watt composite-slab Er:YAG laser. Revision 1
A diode-side-pumped discrete-optic Er{sup 3+} :YAG laser employs pump-light coupling through a sapphire plate diffusion-bonded to the laser slab, removing heat directly at the pump face of the slab instead of requiring conduction through to its far side. This lowers the temperature in the gain region and gives reduced thermal lensing, which produces exceptional beam quality (M{sup 2} {approx} 1.3) at output powers {approx} 0.3 Watt. Powers above 1 Watt have been demonstrated with peak slope efficiencies {approx}20%. The novel architecture is also applicable to other side-pumped lasers.
Date:
February 13, 1997
Creator:
Page, R. H.; Bartels, R. A.; Beach, R. J.; Sutton, S. B.; Furu, L. H. & LaSala, J. E.
Object Type:
Article
System:
The UNT Digital Library
The 2.3 {angstrom} crystal structure of cholera toxin B subunit pentamer: Choleragenoid
Cholera toxin, a heterohexameric AB{sub 5} enterotoxin released by Vibrio cholera, induces a profuse secretory diarrhea in susceptible hosts. Choleragenoid, the B subunit pentamer of cholera toxin, directs the enzymatic A subunit to its target by binding to GM{sub 1} gangliosides exposed on the luminal surface of intestinal epithelial cells. We have solved the crystal structure of choleragenoid at 2.3 {Angstrom} resolution by combining single isomorphous replacement with non-crystallographic symmetry averaging. The structure of the B subunits, and their pentameric arrangement, closely resembles that reported for the intact holotoxin (choleragen), the heat-labile enterotoxin from E. coli, and for a choleragenoid-GM{sub 1} pentasaccharide complex. In the absence of the A subunit the central cavity of the B pentamer is a highly solvated channel. The binding of the A subunit or the receptor pentasaccharide to choleragenoid has only a modest effect on the local stereochemistry and does not perceptibly alter the subunit interface.
Date:
February 1, 1996
Creator:
Zhang, Rong-Guang; Westbrook, M. L.; Maulik, P. R.; Reed, R. A.; Shipley, G.; Westbrook, E. M. et al.
Object Type:
Report
System:
The UNT Digital Library
3-D Finite Element Analyses of the Egan Cavern Field
Three-dimensional finite element analyses were performed for the two gas-filled storage caverns at the Egan field, Jennings dome, Louisiana. The effects of cavern enlargement on surface subsidence, storage loss, and cavern stability were investigated. The finite element model simulated the leaching of caverns to 6 and 8 billion cubic feet (BCF) and examined their performance at various operating conditions. Operating pressures varied from 0.15 psi/ft to 0.9 psi/ft at the bottom of the lowest cemented casing. The analysis also examined the stability of the web or pillar of salt between the caverns under differential pressure loadings. The 50-year simulations were performed using JAC3D, a three dimensional finite element analysis code for nonlinear quasistatic solids. A damage criterion based on onset of dilatancy was used to evaluate cavern instability. Dilation results from the development of microfractures in salt and, hence, potential increases in permeability onset occurs well before large scale failure. The analyses predicted stable caverns throughout the 50-year period for the range of pressures investigated. Some localized salt damage was predicted near the bottom walls of the caverns if the caverns are operated at minimum pressure for long periods of time. Volumetric cavern closures over time due to creep were …
Date:
February 1, 1999
Creator:
Klamerus, E.W. & Ehgartner, B.L.
Object Type:
Report
System:
The UNT Digital Library
A 3-d modular gripper design tool
Modular fixturing kits are sets of components used for flexible, rapid construction of fixtures. A modular vise is a parallel-jaw vise, each jaw of which is a modular fixture plate with a regular grid of precisely positioned holes. To fixture a part, one places pins in some of the holes so that when the vise is closed, the part is reliably located and completely constrained. The modular vise concept can be adapted easily to the design of modular parallel-jaw grippers for robots. By attaching a grid-plate to each jaw of a parallel-jaw gripper, one gains the ability to easily construct high-quality grasps for a wide variety of parts from a standard set of hardware. Wallack and Canny developed an algorithm for planning planar grasp configurations for the modular vise. In this paper, the authors expand this work to produce a 3-d fixture/gripper design tool. They describe several analyses they have added to the planar algorithm, including a 3-d grasp quality metric based on force information, 3-d geometric loading analysis, and inter-gripper interference analysis. Finally, the authors describe two applications of their code. One of these is an internal application at Sandia, while the other shows a potential use of the …
Date:
February 1, 1997
Creator:
Brown, R.G. & Brost, R.C.
Object Type:
Article
System:
The UNT Digital Library
3-D Seismic Imaging of Complex Geologies
We present three codes for the Intel Paragon that address the problem of three-dimensional seismic imaging of complex geologies. The first code models acoustic wave propagation and can be used to generate data sets to calibrate and validate seismic imaging codes. This code reported the fastest timings for acoustic wave propagation codes at a recent SEG (Society of Exploration Geophysicists) meeting. The second code implements a Kirchhoff method for pre-stack depth migration. Development of this code is almost complete, and preliminary results are presented. The third code implements a wave equation approach to seismic migration and is a Paragon implementation of a code from the ARCO Seismic Benchmark Suite.
Date:
February 1, 1995
Creator:
Womble, David E.; Dosanjh, Sudip S.; VanDyke, John P.; Oldfield, Ron A. & Greenberg, David S.
Object Type:
Article
System:
The UNT Digital Library
A 3-dimensional ray-trace model for predicting the performance of flashlamp-pumped laser amplifiers
We have developed a fully three-dimensional model for the performance of flashlamp pumped laser amplifiers. The model uses a reverse ray-trace technique to calculate the pumping of the laser glass by the flashlamp radiation. We have discovered several different methods by which we can speed up the calculation of the gain profile in a amplifier. The model predicts the energy-storage performance of the Beamlet amplifiers to better than 5%. This model will be used in the optimization of the National Ignition Facility (NIF) amplifier design.
Date:
February 13, 1997
Creator:
Jancaitis, K.S.; Haney, S.W.; Munro, D.H.; Le Touze, G. & Cabourdin, O.
Object Type:
Article
System:
The UNT Digital Library
E-5 E-One (2-5-1992)
None
Date:
February 5, 1992
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
(6)Li, (7)Li Nuclear Magnetic Resonance Investigation of Lithium Coordination in Binary Phosphate Glasses
{sup 6}Li and {sup 7}Li solid state magic angle spinning (MAS) nuclear magnetic resonance (NMR) spectroscopy has been used to investigate the local coordination environment of lithium in a series of xLi{sub 2}O {center_dot} (1-x)P{sub 2}O{sub 5} glasses, where 0.05 {le} x {le} 0.55. Both the {sup 6}Li and {sup 7}Li show chemical shift variations with changes in the Li{sub 2}O concentration, but the observed {sup 6}Li NMR chemical shifts closely approximate the true isotropic chemical shift and can provide a measure of the lithium bonding environment. The {sup 6}Li NMR results indicate that in this series of lithium phosphate glasses the Li atoms have an average coordination between four and five. The results for the metaphosphate glass agree with the coordination number and range of chemical shifts observed for crystalline LiPO{sub 3}. An increase in the {sup 6}Li NMR chemical shift with increasing Li{sub 2}O content was observed for the entire concentration range investigated, correlating with increased cross-linking of the phosphate tetrahedral network by O-Li-O bridges. The {sup 6}Li chemical shifts were also observed to vary monotonically through the anomalous glass transition temperature (T{sub g}) minimum. This continuous chemical shift variation shows that abrupt changes in the Li coordination …
Date:
February 8, 1999
Creator:
Alam, T.M.; Boyle, T.J.; Brow, R.K. & Conzone, S.
Object Type:
Article
System:
The UNT Digital Library
The 17 keV neutrino and neutrino tagging
P-788 at FNAL proposed to search for neutrino oscillations in a tagged neutrino line. A K{sub L} beam and the decay modes K{sub L} {yields} {pi}{mu}{nu}{sub {mu}} and K {sub L} {yields} {pi}e{nu}{sub e} provides the neutrino flux. An upstream tagging spectrometer then identifies the hadron and lepton and reconstructs the K{sub L} decay; the lepton identification will specifies the neutrino as {nu}{sub e} or {nu}{sub {mu}} and distinguishes {nu} from {bar {nu}} at the decay vertex. A neutrino detector modeled after an existing deep-inelastic scattering spectrometer (rates have been worked out for the CCFR apparatus) can be used to associate the K{sub L} with a neutrino interaction, measure the neutrino energy, and analyze outgoing muons. Monte Carlo studies show that 30K {nu}{sub e} and 20K {nu}{sub {mu}} could be obtained in two fixed target runs at the Tevatron.
Date:
February 1, 1992
Creator:
Bernstein, R.H.
Object Type:
Article
System:
The UNT Digital Library
The 17 keV neutrino and neutrino tagging
P-788 at FNAL proposed to search for neutrino oscillations in a tagged neutrino line. A K{sub L} beam and the decay modes K{sub L} {yields} {pi}{mu}{nu}{sub {mu}} and K {sub L} {yields} {pi}e{nu}{sub e} provides the neutrino flux. An upstream tagging spectrometer then identifies the hadron and lepton and reconstructs the K{sub L} decay; the lepton identification will specifies the neutrino as {nu}{sub e} or {nu}{sub {mu}} and distinguishes {nu} from {bar {nu}} at the decay vertex. A neutrino detector modeled after an existing deep-inelastic scattering spectrometer (rates have been worked out for the CCFR apparatus) can be used to associate the K{sub L} with a neutrino interaction, measure the neutrino energy, and analyze outgoing muons. Monte Carlo studies show that 30K {nu}{sub e} and 20K {nu}{sub {mu}} could be obtained in two fixed target runs at the Tevatron.
Date:
February 1, 1992
Creator:
Bernstein, R. H.
Object Type:
Article
System:
The UNT Digital Library
26.7 Mhz Cavity Mechanical Tuner Requirements
The Report is a description of Project about 26.7 Mhz Cavity Mechanical Tuner Requirements.
Date:
February 1, 1995
Creator:
Rose, J.
Object Type:
Report
System:
The UNT Digital Library
60-day waste compatibility safety issues and final results for TX-244 grab samples
Three grab samples (244-TX-96-1, 244-TX-96-2, and 244-TX-96-3) were taken from Riser 8 of Tank 241-TX-244 on October 18, 1996, and received by 222-S Laboratory on October 18, 1996. These samples were analyzed in accordance with Compatibility Grab Sampling and Analysis Plan (TSAP) and Data Quality Objectives for Tank Farms Waste Compatibility Program (DQO) in support ofthe Waste Compatibility Program. Notifications were made in accordance with TSAP for pH and OH- analyses. Upon further review, the pH notification was deemed unnecessary, as the notification limit did not apply to this tank.
Date:
February 5, 1997
Creator:
Nuzum, J. L.
Object Type:
Report
System:
The UNT Digital Library
[100 Block W. Kolstad]
Photo of the 100 block of W. Kolstad. Houses from the left to right are 119, 117, and 115 W. Kolstad.
Date:
February 1993
Creator:
Goebel, Matt
Object Type:
Photograph
System:
The Portal to Texas History
[100 S. Sycamore - Pearlstone Grocery Company]
This building is one of the relatively few historic warehouses to survive in Palestine. The building is indicative of how little stylistic ornamentation was applied to buildings that were used for utilitarian purposes. The building does have paired, double-hung windows set within segmented arches and vertical brick piers that define the bays. The Davidson-Pearlstone Grocery Company was in operation at this site for several years following its formation in 1899. In 1904 local businessman Hyman Pearlstone bought the controlling interest and renamed the company. According to local historians, J.T. Sweetman bought an interest in the firm in 1905. The Pearlstone Grocery Company opened in this building in January 1913.
Date:
February 1993
Creator:
Goebel, Matt
Object Type:
Photograph
System:
The Portal to Texas History
105-KW Sandfilter Backwash Pit sludge volume calculation
The volume of sludge contained in the 100-KW Sandfilter Backwash Pit (SFBWP) was calculated from depth measurements of the sludge, pit dimension measurements and analysis of video tape recordings taken by an underwater camera. The term sludge as used in this report is any combination of sand, sediment, or corrosion products visible in the SFBWP area. This work was performed to determine baseline volume for use in determination of quantities of uranium and plutonium deposited in the pit from sandfilter backwashes. The SFBWP has three areas where sludge is deposited: (1) the main pit floor, (2) the transfer channel floor, and (3) the surfaces and structures in the SFBWP. The depths of sludge and the uniformity of deposition varies significantly between these three areas. As a result, each of the areas was evaluated separately. The total volume of sludge determined was 3.75 M{sup 3} (132.2 ft{sup 3}).
Date:
February 10, 1995
Creator:
Dodd, E.N. Jr.
Object Type:
Report
System:
The UNT Digital Library
[107 E. Kolstad - Gaught House]
Photograph of the front and west side of the "Gaught House," a two-story, red-brick house located at 107 E. Kolstad in Palestine, Texas. There is a double staircase leading to the raised front porch, which has ionic columns.
Date:
February 1993
Creator:
Goebel, Matt
Object Type:
Photograph
System:
The Portal to Texas History
[111 Angelina - Pentecom LLC]
Located at the northwest corner of Angelina and Royall streets, it was at one time the Medical Center Pharmacy. As of August 2006, the building houses the offices of Pentecom LLC.
Date:
February 1993
Creator:
Moore, David
Object Type:
Photograph
System:
The Portal to Texas History