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Dynamic Behavior of Sand: Annual Report FY 11 (open access)

Dynamic Behavior of Sand: Annual Report FY 11

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 …
Date: March 15, 2012
Creator: Antoun, Tarabay; Herbold, Eric & Johnson, Scott
Object Type: Report
System: The UNT Digital Library
Gainesville Daily Register (Gainesville, Tex.), Vol. 127, No. 139, Ed. 1 Wednesday, March 15, 2017 (open access)

Gainesville Daily Register (Gainesville, Tex.), Vol. 127, No. 139, Ed. 1 Wednesday, March 15, 2017

Daily newspaper from Gainesville, Texas that includes local, state, and national news along with advertising.
Date: March 15, 2017
Creator: Armstrong, Mark J.
Object Type: Newspaper
System: The Portal to Texas History
Gainesville Daily Register (Gainesville, Tex.), Vol. 128, No. 139, Ed. 1 Thursday, March 15, 2018 (open access)

Gainesville Daily Register (Gainesville, Tex.), Vol. 128, No. 139, Ed. 1 Thursday, March 15, 2018

Daily newspaper from Gainesville, Texas that includes local, state, and national news along with advertising.
Date: March 15, 2018
Creator: Armstrong, Mark J.
Object Type: Newspaper
System: The Portal to Texas History
Evaluating greenhouse gas emissions from hydropower complexes on large rivers in Eastern Washington (open access)

Evaluating greenhouse gas emissions from hydropower complexes on large rivers in Eastern Washington

Water bodies, such as freshwater lakes, are known to be net emitters of carbon dioxide (CO2), and methane (CH4). In recent years, significant greenhouse gas (GHG) emissions from tropical, boreal, and mid-latitude reservoirs have been reported. At a time when hydropower is increasing worldwide, better understanding of seasonal and regional variation in GHG emissions is needed in order to develop a predictive understanding of such fluxes within man-made impoundments. We examined power-producing dam complexes within xeric temperate locations in the northwestern United States. Sampling environments on the Snake (Lower Monumental Dam Complex) and Columbia Rivers (Priest Rapids Dam Complex) included tributary, mainstem, embayment, forebay, and tailrace areas during winter and summer 2012. At each sampling location, GHG measurement pathways included surface gas flux, degassing as water passed through dams during power generation, ebullition within littoral embayments, and direct sampling of hyporheic pore-water. Measurements were also carried out in a free-flowing reach of the Columbia River to estimate unaltered conditions. Surface flux resulted in very low emissions, with reservoirs acting as a sink for CO2 (up to –262 mg m-2 d-1, which is within the range previously reported for similarly located reservoirs). Surface flux of methane remained below 1 mg CH4 …
Date: March 15, 2013
Creator: Arntzen, Evan V.; Miller, Benjamin L.; O'Toole, Amanda C.; Niehus, Sara E. & Richmond, Marshall C.
Object Type: Report
System: The UNT Digital Library
Mount Pleasant Tribune (Mount Pleasant, Tex.), Vol. 143, No. 53, Ed. 1 Wednesday, March 15, 2017 (open access)

Mount Pleasant Tribune (Mount Pleasant, Tex.), Vol. 143, No. 53, Ed. 1 Wednesday, March 15, 2017

Semiweekly newspaper from Mount Pleasant, Texas that includes local, state, and national news along with advertising.
Date: March 15, 2017
Creator: Bachman, Marty
Object Type: Newspaper
System: The Portal to Texas History
TANK 40 FINAL SB7B CHEMICAL CHARACTERIZATION RESULTS (open access)

TANK 40 FINAL SB7B CHEMICAL CHARACTERIZATION RESULTS

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 …
Date: March 15, 2012
Creator: Bannochie, C.
Object Type: Report
System: The UNT Digital Library
Limit of detection of Bacillus anthracis in complex soil and air samples using next-generation sequencing (open access)

Limit of detection of Bacillus anthracis in complex soil and air samples using next-generation sequencing

None
Date: March 15, 2012
Creator: Be, Nicholas A.; Thissen, James B.; Gardner, Shea; McLoughlin, Kevin; Fofanov, Viacheslav; Koshinsky, Heather et al.
Object Type: Article
System: The UNT Digital Library
Measurement of the D_s Decay Constant f_Ds and Observation of New Charm Resonances Decaying to D^(*)\pi (open access)

Measurement of the D_s Decay Constant f_Ds and Observation of New Charm Resonances Decaying to D^(*)\pi

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}} …
Date: March 15, 2012
Creator: Benitez, Jose
Object Type: Thesis or Dissertation
System: The UNT Digital Library
OpenMP for Accelerators (open access)

OpenMP for Accelerators

OpenMP [13] is the dominant programming model for shared-memory parallelism in C, C++ and Fortran due to its easy-to-use directive-based style, portability and broad support by compiler vendors. Similar characteristics are needed for a programming model for devices such as GPUs and DSPs that are gaining popularity to accelerate compute-intensive application regions. This paper presents extensions to OpenMP that provide that programming model. Our results demonstrate that a high-level programming model can provide accelerated performance comparable to hand-coded implementations in CUDA.
Date: March 15, 2011
Creator: Beyer, J C; Stotzer, E J; Hart, A & de Supinski, B R
Object Type: Article
System: The UNT Digital Library
The Leonard Graphic (Leonard, Tex.), Vol. 128, No. 11, Ed. 1 Thursday, March 15, 2018 (open access)

The Leonard Graphic (Leonard, Tex.), Vol. 128, No. 11, Ed. 1 Thursday, March 15, 2018

Weekly newspaper from Leonard, Texas that includes local, state, and national news along with advertising.
Date: March 15, 2018
Creator: Blevins, Betsy
Object Type: Newspaper
System: The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 95, No. 46, Ed. 1 Sunday, March 15, 2015 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 95, No. 46, Ed. 1 Sunday, March 15, 2015

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: March 15, 2015
Creator: Bloom, David
Object Type: Newspaper
System: The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 96, No. 53, Ed. 1 Tuesday, March 15, 2016 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 96, No. 53, Ed. 1 Tuesday, March 15, 2016

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: March 15, 2016
Creator: Bloom, David
Object Type: Newspaper
System: The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 97, No. 54, Ed. 1 Wednesday, March 15, 2017 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 97, No. 54, Ed. 1 Wednesday, March 15, 2017

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: March 15, 2017
Creator: Bloom, David
Object Type: Newspaper
System: The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 98, No. 53, Ed. 1 Thursday, March 15, 2018 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 98, No. 53, Ed. 1 Thursday, March 15, 2018

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: March 15, 2018
Creator: Bloom, David
Object Type: Newspaper
System: The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 99, No. 53, Ed. 1 Friday, March 15, 2019 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 99, No. 53, Ed. 1 Friday, March 15, 2019

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: March 15, 2019
Creator: Bloom, David
Object Type: Newspaper
System: The Portal to Texas History
The Aransas Pass Progress (Aransas Pass, Tex.), Vol. 108, No. 11, Ed. 1 Wednesday, March 15, 2017 (open access)

The Aransas Pass Progress (Aransas Pass, Tex.), Vol. 108, No. 11, Ed. 1 Wednesday, March 15, 2017

Weekly newspaper from Aransas Pass, Texas that includes local, state, and national news along with advertising.
Date: March 15, 2017
Creator: Bowers, John
Object Type: Newspaper
System: The Portal to Texas History
The Express-Star (Chickasha, Okla.), Ed. 1 Friday, March 15, 2013 (open access)

The Express-Star (Chickasha, Okla.), Ed. 1 Friday, March 15, 2013

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date: March 15, 2013
Creator: Bright, James
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Express-Star (Chickasha, Okla.), Ed. 1 Saturday, March 15, 2014 (open access)

The Express-Star (Chickasha, Okla.), Ed. 1 Saturday, March 15, 2014

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date: March 15, 2014
Creator: Bright, James
Object Type: Newspaper
System: The Gateway to Oklahoma History
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 101, No. 107, Ed. 1 Tuesday, March 15, 2016 (open access)

Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 101, No. 107, Ed. 1 Tuesday, March 15, 2016

Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date: March 15, 2016
Creator: Brock, John
Object Type: Newspaper
System: The Gateway to Oklahoma History
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 102, No. 130, Ed. 1 Wednesday, March 15, 2017 (open access)

Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 102, No. 130, Ed. 1 Wednesday, March 15, 2017

Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date: March 15, 2017
Creator: Brock, John
Object Type: Newspaper
System: The Gateway to Oklahoma History
eBulletin, Vol. 5, No. 3, Ed. 1 Thursday, March 15, 2012 (open access)

eBulletin, Vol. 5, No. 3, Ed. 1 Thursday, March 15, 2012

Monthly electronic newsletter published for members of the Texas Daily Newspaper Association. Includes news items of interest to association members.
Date: March 15, 2012
Creator: Brown, Cyndi
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Perry Daily Journal (Perry, Okla.), Vol. 119, No. 51, Ed. 1 Tuesday, March 15, 2011 (open access)

Perry Daily Journal (Perry, Okla.), Vol. 119, No. 51, Ed. 1 Tuesday, March 15, 2011

Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date: March 15, 2011
Creator: Brown, Gloria
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Canadian Record (Canadian, Tex.), Vol. 122, No. 11, Ed. 1 Thursday, March 15, 2012 (open access)

The Canadian Record (Canadian, Tex.), Vol. 122, No. 11, Ed. 1 Thursday, March 15, 2012

Weekly newspaper from Canadian, Texas that includes local, state and national news along with some advertising.
Date: March 15, 2012
Creator: Brown, Laurie Ezzell
Object Type: Newspaper
System: The Portal to Texas History
The Endangered Species Act (ESA) in the 112th Congress: Conflicting Values and Difficult Choices (open access)

The Endangered Species Act (ESA) in the 112th Congress: Conflicting Values and Difficult Choices

None
Date: March 15, 2012
Creator: Buck, Eugene H.; Corn, M. Lynne; Alexander, Kristina; Sheikh, Pervaze A. & Meltz, Robert
Object Type: Report
System: The UNT Digital Library