We apply ultrafast single shot interferometry to determine the pressure and density of argon shocked from up to 7.8 GPa static initial pressure in a diamond anvil cell. This method enables the observation of thermodynamic states distinct from those observed in either single shock or isothermal compression experiments, and the observation of ultrafast dynamics in shocked materials. We also present a straightforward method for interpreting ultrafast shock wave data which determines the index of refraction at the shock front, and the particle and shock velocities for shock waves in transparent materials. Based on these methods, we observe shocked thermodynamic states between the room temperature isotherm of argon and the shock adiabat of cryogenic argon at final shock pressures up to 28 GPa.

The National Museum of the Pacific War presents an oral interview with Herman L. Bell. Bell worked in a shipyard in California at the beginning of the war and describes his duties as a welder. He joined the Navy in April 1943 and discusses his time in boot camp at Farragut, Idaho and the additional training that he received as a firefighter. Bell was sent to the USS Independence (CVL-22). He describes his duties and some of the work he performed. Bell discusses when his ship was hit with a torpedo off Tarawa and the damage control work he performed including how he helped save a trapped sailor. He also discusses an incident when emergency repairs were performed during a typhoon and another when a large bomb broke free from its restraints. Bell also discusses seeing the massive flyover during the surrender ceremony in Tokyo Bay. He left the service in November 1945.

The National Museum of the Pacific War presents an oral interview with Herman L. Bell. Bell worked in a shipyard in California at the beginning of the war and describes his duties as a welder. He joined the Navy in April 1943 and discusses his time in boot camp at Farragut, Idaho and the additional training that he received as a firefighter. Bell was sent to the USS Independence (CVL-22). He describes his duties and some of the work he performed. Bell discusses when his ship was hit with a torpedo off Tarawa and the damage control work he performed including how he helped save a trapped sailor. He also discusses an incident when emergency repairs were performed during a typhoon and another when a large bomb broke free from its restraints. Bell also discusses seeing the massive flyover during the surrender ceremony in Tokyo Bay. He left the service in November 1945.

We investigate tunable plasmon resonant cavity arrays in paired parallel nanowire waveguides. Resonances are observed when the waveguide length is an odd multiple of quarter plasmon wavelengths, consistent with boundary conditions of node and antinode at the ends. Two nanowire waveguides satisfy the dispersion relation of a planar metal-dielectric-metal waveguide of equivalent width equal to the square field average weighted gap. Confinement factors over 103 are possible due to plasmon focusing in the inter-wire space.

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

This report describes characterization of a sample obtained from the 3714 building in the 300 Area. Characterization of this unknown material was required for the demonolition activities in the 300 Area. The object of the study was to dertermine the nature of the material, composition, possible structure, evidence for hazards components. The green material is a sodium alumino-silicate glass. This conclusion is based on the composition provided by SEM-EDS, and the images that suggest a glass-like morphology. Further analysis with Ramin and/or infrared could be used to determine the presence of any organics.

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

Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.

This report provides background on free trade areas (FTAs) -- arrangements among two or more countries under which they agree to eliminate tariffs and nontariff barriers on trade in goods among themselves -- why countries form them, and how they relate to U.S. trade policy. It also discusses recent developments, the economic impact of FTAs, the relation of FTAs to the World Trade Organization (WTO) and debate points, as well as general conclusions and implications for Congress.

This report discusses the background of cluster munitions in the U.S. military, and the current Department of Defense (DOD) and Obama Administration stances on the topic. It also discusses the two major international initiatives to address cluster munitions: the Convention on Cluster Munitions (CCM) and negotiations under the U.N. Convention on Prohibitions or Restrictions on the Use of Certain Conventional Weapons (CCW).

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.

Nonlinear effects are known to occur in Compton scattering light sources, when the laser normalized 4-potential, A = e{radical}-A{sub {mu}}A{sup {mu}}/m{sub 0}c approaches unity. In this letter, it is shown that nonlinear spectral features can appear at arbitrarily low values of A, if the fractional bandwidth of the laser pulse, {Delta}{phi}{sup -1}, is sufficiently small to satisfy A{sup 2} {Delta}{phi} {approx_equal} 1. A three dimensional analysis, based on a local plane-wave, slow-varying envelope approximation, enables the study of these effects for realistic interactions between an electron beam and a laser pulse, and their influence on high-precision Compton scattering light sources.

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

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

Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.

This report discusses Pakistan's efforts to produce fissile material and other issues related to nuclear proliferation and improving its nuclear arsenal. It also discusses the steps Pakistan has taken to increase international confidence in its nuclear security. However, continued instability in Pakistan has caused some to question the effectiveness of its nuclear security reforms. The report addresses these issues as well, in addition to the U.S.-Pakistan relationship as it regards nuclear policy.

A promising approach for improving the efficiency of internal combustion engines is to employ a working fluid with a high specific heat ratio such as the noble gas argon. Moreover, all harmful emissions are eliminated when the intake charge is composed of oxygen, nonreactive argon, and hydrogen fuel. Previous research demonstrated indicated thermal efficiencies greater than 45% at 5.5 compression ratio in engines operating with hydrogen, oxygen, and argon. However, knock limits spark advance and increasing the efficiency further. Conditions under which knock occurs in such engines differs from typical gasoline fueled engines. In-cylinder temperatures using hydrogen-oxygen-argon are higher due to the high specific heat ratio and pressures are lower because of the low compression ratio. Better understanding of knock under these conditions can lead to operating strategies that inhibit knock and allow operation closer to the knock limit. In this work we compare knock with a hydrogen, oxygen, and argon mixture to that of air-gasoline mixtures in a variable compression ratio cooperative fuels research (CFR) engine. The focus is on stability of knocking phenomena, as well as, amplitude and frequency of the resulting pressure waves.

This report discusses the Implementation and issues related to Broadband Infrastructure Programs in the American Recovery and Reinvestment Act of 2009.

News release about a delay in the completion of DART's Orange Line light rail project due to missing a window for construction on a portion of State Highway 114 where the highway and the rail line would intersect.

This report presents characterization data for two spherical resorcinol-formaldehyde (sRF) resin beds that had processed cesium in non-radioactive and radioactive cycles. All column cycle operations for the resin beds including loading, displacements, elution, regeneration, breakthroughs, and solution analyses are reported in Nash and Duignan, 2009a. That report covered four ion exchange (IX) campaigns using the two {approx}11 mL beds in columns in a lead-lag arrangement. The first two campaigns used Savannah River Site (SRS) Tank 2F nonradioactive simulant while the latter two were fed with actual dissolved salt in the Savannah River National Laboratory (SRNL) Shielded Cells. Both radioactive cycles ran to cesium breakthrough of the lead column. The resin beds saw in excess of 400 bed volumes of feed in each cycle. Resin disposal plans in tank farm processing depend on characterizations of resin used with actual tank feed. Following a final 30 bed volume (BV) elution with nitric acid, the resin beds were found to contain detectable chromium, barium, boron, aluminum, iron, sodium, sulfur, plutonium, cesium, and mercury. Resin affinity for plutonium is important in criticality safety considerations. Cesium-137 was found to be less than 10E+7 dpm/g of resin, similar to past work with sRF resin. Sulfur levels …

Weekly student newspaper from the University of Dallas in Irving, Texas that includes campus news and commentaries along with advertising.

Article on the role of the hospice medical director as observed in interdisciplinary team case reviews.

This report discusses congressional interest in the pace of U.S. technological advancement due to its influence on U.S. economic growth, productivity, and international competitiveness. The proper role of the federal government in technology development and the competitiveness of U.S. industry continues to be a topic of congressional debate.