1,460 Matching Results

Search Results

Results: 1 - 24 next

Commentary on "Correlation of solubility of hexamethylene-1,6-bisthiosulphate disodium salt dihydrate versus dielectric constants of water + ethanol mixtures"

Description: This article discusses the finding that Apelblat model equation coefficients are found to give calculated mole fractions that exceed unity for the solubility of hexamethylene-1,6-bisthiosulphate disodium salt dihydrate dissolved in binary aqueous-ethanol solvent mixtures.
Date: May 19, 2017
Creator: Acree, William E. (William Eugene) & Yang, Chunhui
Item Type: Refine your search to only Article
Partner: UNT College of Science
open access

Lebanon: Background and U.S. Relations

Description: This report provides an overview of Lebanese politics, recent events in Lebanon, and current issues in U.S.-Lebanon relations and will be updated to reflect major developments.
Date: May 19, 2009
Creator: Addis, Casey L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Design Methodology and Consideratios for NOVA 53 MHZ RF Cavities

Description: The NO?A Experiment will construct a detector optimized for electron neutrino detection in the existing Neutrino at Main Injector (NuMI) beamline. This beamline is capable of operating at 400 kW of primary beam power and the upgrade will allow up to 700 kW. The cavities will operate at 53 MHz and three of them will be installed in the Recycler beamline. Thermal stability of the cavities is crucial since this affects the tuning. Results of finite element thermal and structural analysis involving… more
Date: May 19, 2010
Creator: Ader, C. & Wildman, D.W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

U.S.-French Commercial Ties

Description: This report discusses the U.S. commercial ties with France, which are extensive, mutually profitable, and growing. With over $1.2 billion in commercial transactions taking place between the two countries every day of the year, each country has an increasingly large stake in the health and openness of the other's economy
Date: May 19, 2008
Creator: Ahearn, Raymond J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Laser fusion implosion and target interaction physics

Description: Laser plasma experiments at the Lawrence Livermore Laboratory have progressed very rapidly and have achieved new milestones in both the implosion and DT gain in laser fusion targets. New diagnostic methods were also developed for determining the state of the compressed fuel and the plasma processes which are occurring in the absorption and scattering of the laser light incident on the laser fusion pellets. A review of the program is given. (MOW)
Date: May 19, 1977
Creator: Ahlstrom, Harlow G. & Nuckolls, John H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Supersymmetric and Kaluza-Klein Particles Multiple Scattering in the Earth

Description: Neutrino telescopes with cubic kilometer volume have the potential to discover new particles. Among them are next to lightest supersymmetric (NLSPs) and next to lightest Kaluza-Klein (NLKPs) particles. Two NLSPs or NLKPs will transverse the detector simultaneously producing parallel charged tracks. The track separation inside the detector can be a few hundred meters. As these particles might propagate a few thousand kilometers before reaching the detector, multiple scattering could enhance the … more
Date: May 19, 2009
Creator: Albuquerque, Ivone & Klein, Spencer
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

A Review of X-ray Diagnostic Calibrations in the 2 to 100 keV Region Using the High Energy X-ray Calibration Facility (HEX)

Description: The precise and accurate measurement of X-rays in the 2 keV to 100 keV region is crucial to the understanding of HED plasmas and warm dense matter in general. With the emergence of inertially confined plasma facilities as the premier platforms for ICF, laboratory astrophysics, and national security related plasma experiments, the need to calibrate diagnostics in the high energy X-ray regime has grown. At National Security Technologies High Energy X-ray Calibration Facility (HEX) in Livermore, C… more
Date: May 19, 2010
Creator: Ali, Zaheer; Pond, T.; Buckles, R. A.; Maddox, B. R.; Chen, C. D.; DeWald, E. L. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Broad, intense, quiescent beam of singly charged metal ions obtained by extraction from self-sputtering plasma far above the runaway threshold

Description: Dense metal plasmas obtained by self-sputtering far above the runway threshold are well suited to generate intense quiescent ion beams. The dilemma of high current density and charge state purity can be solved when using target materials of low surface binding energy by utilizing non-resonant exchange reactions before ion extraction. Space-charge-limited quiescent beams of Cu+, Zn+, and Bi+ with ~;;10 mA/cm2 have been obtained through multi-aperture gridded ion extraction up to 45 kV from self-… more
Date: May 19, 2009
Creator: Anders, Andre & Oks, Efim
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Engineering work plan and design basis for 241-SY ventilation improvements

Description: There are three tanks in the 241-SY tank farm. Tank 241-SY101 and 241-SY-103 are flammable gas watch list tanks. Tank 241-SY-102 is included in the ventilation improvement process in an effort to further control air flow in the tank farm. This tank farm has only one outlet ventilation port for all three tanks. Flammable gas is released (may be steady and/or periodic) from the waste in the primary tank vapor space. The gas is removed from the tank by an active ventilation system. However, mainta… more
Date: May 19, 1997
Creator: Andersen, J. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Irreversible Sorption of Contaminants During Ferrihydrite Transformation

Description: A better understanding of the fraction of contaminants irreversibly sorbed by minerals is necessary to effectively quantify bioavailability. Ferrihydrite, a poorly crystalline iron oxide, is a natural sink for sorbed contaminants. Contaminants may be sorbed/occluded as ferrihydrite precipitates in natural waters or as it ages and transforms to more crystalline iron oxides such as goethite or hematite. Laboratory studies indicate that Cd, Co, Cr, Cu, Ni, Np, Pb, Sr, U, and Zn are irreversibly so… more
Date: May 19, 1999
Creator: Anderson, H. L.; Arthur, S. E.; Brady, P. V.; Cygan, R. T.; Nagy, K. L. & Westrich, H. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

The European Parliament

Description: This report mainly discusses The European Parliament which is a key institution of 28 member European Union. The role of the European Parliament in the legislative has expanded steadily over time as the scope of EU policy has grown.
Date: May 19, 2014
Creator: Archick, Kristin
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Northern Ireland: The Peace Process

Description: For years, the British and Irish governments sought to facilitate a peaceful settlement to the conflict in Northern Ireland. After many ups and downs, the two governments and the eight parties participating in peace talks announced an agreement on April 10, 1998. However, the implementation of the resulting Good Friday The agreement continues to be difficult. This report will be updated as events warrant.
Date: May 19, 2005
Creator: Archick, Kristin
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Wet Oxidation of High-Al-Content III-V Semiconductors: Important Materials Considerations for Device Applications

Description: Wet oxidation of high-Al-content AIGaAs semiconductor layers in vertical cavity surface emitting lasers (VCSELS) has produced devices with record low threshold currents and voltages and with wall-plug efficiencies greater than 50%. Wet oxidation of buried AlGaAs layers has been employed to reduce the problems associated with substrate current leakage in GaAs-on- insulator (GOI) MESFETS. Wet oxidation of high-Al-content AlGaAs semiconductor layers in vertical cavity surface emitting lasers (VCSE… more
Date: May 19, 1999
Creator: Ashby, Carol I.H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Diagnostics for the laser fusion program: plasma physics on the scale of microns and picoseconds

Description: Laser induced fusion is the forerunner of a class of inertial confinement schemes in which hydrogen isotopes are heated to thermonuclear conditions in a very short period. The process is characterized by such short time scales that fuel confinement is achieved through its' own finite mass and expansion velocity, approaching 1 ..mu..m/psec for ignition temperatures of order 10 keV (10/sup 8/ /sup 0/K). With current laser powers limited to several terrawatts one readily estimates, on the basis of… more
Date: May 19, 1978
Creator: Attwood, D.T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Measurement of the Mass Difference m(B0) - m(B+)

Description: Using 230 million B{bar B} events recorded with the BABAR detector at the e{sup +}e{sup -} storage rings PEP-II, they reconstruct approximately 4100 B{sup 0} {yields} J/{psi} K{sup +}{pi}{sup -} and 9930 B{sup +} {yields} J/{psi}K{sup +} decays with J/{psi} {yields} {mu}{sup +}{mu}{sup -} and e{sup +} e{sup -}. From the measured B-momentum distributions in the e{sup +}e{sup -} rest frame, they determine the mass difference m(B{sup 0}) - m(B{sup +}) = (+0.33 {+-} 0.05 {+-} 0.03) MeV/c{sup 2}.
Date: May 19, 2008
Creator: Aubert, B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Thermal-envelop stone house, solar. Final technical report

Description: The purpose of this project is to create a comfortable, low-cost heating system for a single-family house, without dependence on non-renewable energy sources. I have attempted to combine a simple solar air-heating collector with the thermal envelop concept (for thermal air circulation) and massive interior stone walls for heat storage. All building materials, with the exception of the solar glazing material and certain other solar components, are inexpensive and locally produced. Examples are: … more
Date: May 19, 1982
Creator: Avery, S. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Epitaxially-Grown GaN Junction Field Effect Transistors

Description: Junction field effect transistors (JFET) are fabricated on a GaN epitaxial structure grown by metal organic chemical vapor deposition (MOCVD). The DC and microwave characteristics of the device are presented. A junction breakdown voltage of 56 V is obtained corresponding to the theoretical limit of the breakdown field in GaN for the doping levels used. A maximum extrinsic transconductance (g<sub>m</sub>) of 48 mS/mm and a maximum source-drain current of 270 mA/mm are achieved on a 0.8 &micro; m… more
Date: May 19, 1999
Creator: Baca, A. G.; Chang, P. C.; Denbaars, S. P.; Lester, L. F.; Mishra, U. K.; Shul, R. J. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Direct flow in 10.8 GeV/nucleon Au+Au collisions measured in experiment E917 at the AGS.

Description: Analysis of directed flow observable for protons and pions from Au+Au collisions at 10.8 GeV/nucleon from experiment E917 at the AGS is presented. Using a Fourier series expansion, the first Fourier component, {nu}{sub 1},was extracted as a function of rapidity for mid-central collisions (17-24%). Clear evidence for positive directed flow is found in the proton data, and a weak, possibly negative directed flow signal is observed for {pi}{sup +} and {pi}{sup {minus}}.
Date: May 19, 1999
Creator: Back, B. B.; Betts, R. R.; Britt, H. C.; Chang, J.; Chang, W. C.; Gillitzer, A. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Laser Heated High Density Fluids Probed by Coherent Anti-Stokes Raman Spectroscopy

Description: We describe an integrated experimental method of Coherent Antistoke Raman Spectroscopy (CARS), laser-heating and diamond-anvil cell (DAC) technologies probing molecular vibrations of transparent molecular fluids at the pressure-temperature conditions of energetic detonation and Giant planetary interiors. In this method, we use a microfabricated metal toroid to conductively heat a surrounding transparent sample in a DAC, using a CW Nd:YLF laser. The laser is operated at a TEM{sub 01*} mode to ma… more
Date: May 19, 2004
Creator: Baer, B J & Yoo, C
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

IEA Annex 26: Advanced Supermarket Refrigeration/Heat Recovery Systems

Description: With increased concern about the impact of refrigerant leakage on global warming, a number of new supermarket refrigeration system configurations requiring significantly less refrigerant charge are being considered. In order to help promote the development of advanced systems and expand the knowledge base for energy-efficient supermarket technology, the International Energy Agency (IEA) established IEA Annex 26 (Advanced Supermarket Refrigeration/Heat Recovery Systems) under the ''IEA Implement… more
Date: May 19, 2003
Creator: Baxter, VAN
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
Back to Top of Screen