Currently, design of earth-penetrating munitions relies heavily on empirical relationships to estimate behavior, making it difficult to design novel munitions or address novel target situations without expensive and time-consuming full-scale testing with relevant system and target characteristics. Enhancing design through numerical studies and modeling could help reduce the extent and duration of full-scale testing if the models have enough fidelity to capture all of the relevant parameters. This can be separated into three distinct problems: that of the penetrator structural and component response, that of the target response, and that of the coupling between the two. This project focuses on enhancing understanding of the target response, specifically granular geomaterials, where the temporal and spatial multi-scale nature of the material controls its response. As part of the overarching goal of developing computational capabilities to predict the performance of conventional earth-penetrating weapons, this project focuses specifically on developing new models and numerical capabilities for modeling sand response in ALE3D. There is general recognition that granular materials behave in a manner that defies conventional continuum approaches which rely on response locality and which degrade in the presence of strong response nonlinearities, localization, and phase gradients. There are many numerical tools available to address …

Founded in 1845 as a steamboat port at the entryway to western markets from the Red River, Jefferson was a thriving center of trade until the steamboat traffic dried up in the 1870s. During its heyday, the town monopolized the shipping of cotton from all points west for 150 miles. Jefferson was the unofficial capital of East Texas, but it was also typical of boom towns in general. For this topical examination of a frontier town, Bagur draws from many government documents, but also from newspaper ads and plats. These sources provide intimate details of the lives of the early citizens of Jefferson, Texas. Their story is of interest to both local and state historians as well as to the many readers interested in capturing the flavor of life in old-time East Texas. “Astoundingly complete and a model for local history research, with appeal far beyond readers who have specific interests in Jefferson.”—Fred Tarpley, author of Jefferson: Riverport to the Southwest

A sample of Sludge Batch 7b (SB7b) was taken from Tank 40 in order to obtain radionuclide inventory analyses necessary for compliance with the Waste Acceptance Product Specifications (WAPS). The SB7b WAPS sample was also analyzed for chemical composition including noble metals and fissile constituents, and these results are reported here. These analyses along with the WAPS radionuclide analyses will help define the composition of the sludge in Tank 40 that is currently being fed to the Defense Waste Processing Facility (DWPF) as SB7b. At the Savannah River National Laboratory (SRNL) the 3-L Tank 40 SB7b sample was transferred from the shipping container into a 4-L high density polyethylene bottle and solids were allowed to settle over the weekend. Supernate was then siphoned off and circulated through the shipping container to complete the transfer of the sample. Following thorough mixing of the 3-L sample, a 558 g sub-sample was removed. This sub-sample was then utilized for all subsequent analytical samples. Eight separate aliquots of the slurry were digested, four with HNO{sub 3}/HCl (aqua regia) in sealed Teflon{reg_sign} vessels and four with NaOH/Na{sub 2}O{sub 2} (alkali or peroxide fusion) using Zr crucibles. Two Analytical Reference Glass - 1 (ARG-1) standards were …

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The absolute branching fractions for the decays D{sub s}{sup -} {yields} {ell}{sup -}{bar {nu}}{sub {ell}} ({ell} = e, {mu}, or {tau}) are measured using a data sample corresponding to an integrated luminosity of 521 fb{sup -1} collected at center of mass energies near 10.58 GeV with the BABAR detector at the PEPII e{sup +}e{sup -} collider at SLAC. The number of D{sub s}{sup -} mesons is determined by reconstructing the recoiling system DKX{gamma} in events of the type e{sup +}e{sup -} {yields} DKXD*{sub s}{sup -}, where D*{sub s}{sup -} {yields} D{sub s}{sup -} {gamma} and X represents additional pions from fragmentation. The D{sub s}{sup -} {yields} {ell}{sup -}{nu}{sub {ell}} events are detected by full or partial reconstruction of the recoiling system DKX{gamma}{ell}. The following results are obtained: {Beta}(D{sub s}{sup -} {yields} {mu}{sup -}{nu}) = (6.02 {+-} 0.38 {+-} 0.34) x 10{sup -3}, {Beta}(D{sub s}{sup -} {yields} {tau}{sup -}{nu}) = (5.00 {+-} 0.35 {+-} 0.49) x 10{sup -2}, and B(D{sub s}{sup -} {yields} e{sup -}{nu}) < 2.8 x 10{sup -4} at 90% C.L., where the first uncertainty is statistical and the second is systematic. The branching fraction measurements are combined to determine the D{sub s}{sup -} decay constant f{sub D{sub s}} …

Monthly electronic newsletter published for members of the Texas Daily Newspaper Association. Includes news items of interest to association members.

Weekly newspaper from Canadian, Texas that includes local, state and national news along with some advertising.

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Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.

We examine the ability for the Large Area Telescope (LAT) to constrain Minimal Supersymmetric Standard Model (MSSM) dark matter through a combined analysis of Milky Way dwarf spheroidal galaxies. We examine the Lightest Supersymmetric Particles (LSPs) for a set of {approx}71k experimentally valid supersymmetric models derived from the phenomenological-MSSM (pMSSM). We find that none of these models can be excluded at 95% confidence by the current analysis; nevertheless, many lie within the predicted reach of future LAT analyses. With two years of data, we find that the LAT is currently most sensitive to light LSPs (mLSP < 50 GeV) annihilating into {tau}-pairs and heavier LSPs annihilating into b{bar b}. Additionally, we find that future LAT analyses will be able to probe some LSPs that form a sub-dominant component of dark matter. We directly compare the LAT results to direct detection experiments and show the complementarity of these search methods.

The OPERA collaboration has reported the observation of superluminal muon neutrinos, whose speed v{sub {nu}} exceeds that of light c, with (v{sub {nu}}-c)/c {approx_equal} 2.5 x 10{sup -5}. In a recent work, Cohen and Glashow (CG) have refuted this claim by noting that such neutrinos will lose energy, by pair-emission of particles, at unacceptable rates. Following the CG arguments, we point out that pair-emissions consistent with the OPERA anomaly can lead to detectable signals for neutrinos originating from decays of highly boosted top quarks at the LHC, allowing an independent test of the superluminal neutrino hypothesis.

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.

Air Products and Chemicals, Inc., is developing the sour pressure swing adsorption (PSA) technology which can be used to reject acid gas components (hydrogen sulfide [H{sub 2}S] and carbon dioxide [CO{sub 2}]) from sour syngas streams such as coal gasification syngas. In the current work, tests were conducted to investigate the impact of continuous exposure of real sour syngas and dilute levels of hydrochloric acid (HCl) and ammonia (NH{sub 3}) on the preferred adsorbent of that process. The results show a modest (~10%–15%) decrease in CO{sub 2} adsorption capacity after sour syngas exposure, as well as deposition of metals from carbonyl decomposition. Continuous exposure to HCl and NH{sub 3} yield a higher degree of CO{sub 2} capacity degradation (up to 25%). These tests represent worst-case approaches since the exposure is continuous and the HCl and NH{sub 3} levels are relatively high compare to an industrial sour syngas stream. Long-term PSA tests are needed to unequivocally evaluate the impact of cyclic exposure to these types of streams.

Final report on neutron shield construction and testing.

Recital presented at the UNT College of Music Recital Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree.

Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.

Weekly newspaper from Keene, Texas that includes local, state, and national news along with advertising.

Daily student newspaper from the University of North Texas in Denton, Texas that includes local, state, and campus news along with advertising.

Weekly newspaper from Crowley, Texas that includes local, state, and national news along with advertising.

Weekly newspaper from Garber, Oklahoma that includes local, state, and national news along with advertising.

Article discussing research on how the resistance to impact criteria can lead to a tightening of the accountability noose.

Weekly newspaper from Tulia, Texas that includes local, state, and national news along with extensive advertising.

Following the Civil War, the United States was fully engaged in a bloody conflict with ex-Confederates, conservative Democrats, and members of organized terrorist groups, such as the Ku Klux Klan, for control of the southern states. Texas became one of the earliest battleground states in the War of Reconstruction. Throughout this era, white Texans claimed that Radical Republicans in Congress were attempting to dominate their state through “Negro-Carpetbag-Scalawag rule.” In response to these perceived threats, whites initiated a violent guerilla war that was designed to limit support for the Republican Party. They targeted loyal Unionists throughout the South, especially African Americans who represented the largest block of Republican voters in the region. Was the Reconstruction era in the Lone Star State simply a continuation of the Civil War? Evidence presented by sixteen contributors in this new anthology, edited by Kenneth W. Howell, argues that this indeed was the case. Topics include the role of the Freedmen’s Bureau and the occupying army, focusing on both sides of the violence. Several contributors analyze the origins of the Ku Klux Klan and its operations in Texas, how the Texas State Police attempted to quell the violence, and Tejano adjustment to Reconstruction. Other chapters …

Weekly newspaper from Port Aransas, Texas on Mustang Island that includes local, state and national news along with extensive advertising.