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Accessing High Pressure States Relevant to Core Conditions in the Giant Planets (open access)

Accessing High Pressure States Relevant to Core Conditions in the Giant Planets

We have designed an experimental technique to use on the National Ignition Facility (NIF) laser to achieve very high pressure (P{sub max} > 10 Mbar = 1000 GPa), dense states of matter at moderate temperatures (kT < 0.5 eV = 6000 K), relevant to the core conditions of the giant planets. A discussion of the conditions in the interiors of the giant planets is given, and an experimental design that can approach those conditions is described.
Date: April 15, 2004
Creator: Remington, B. A.; Cavallo, R. M.; Edwards, M. J.; Ho, D. D.; Lorenz, K. T.; Lorenzana, H. E. et al.
Object Type: Article
System: The UNT Digital Library
The Albany News (Albany, Tex.), Vol. [128], No. [45], Ed. 1 Thursday, April 15, 2004 (open access)

The Albany News (Albany, Tex.), Vol. [128], No. [45], Ed. 1 Thursday, April 15, 2004

Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date: April 15, 2004
Creator: Lucas, Melinda L.
Object Type: Newspaper
System: The Portal to Texas History
Altus Times (Altus, Okla.), Vol. 106, No. 13, Ed. 1 Thursday, April 15, 2004 (open access)

Altus Times (Altus, Okla.), Vol. 106, No. 13, Ed. 1 Thursday, April 15, 2004

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: April 15, 2004
Creator: Andrews, Mike
Object Type: Newspaper
System: The Gateway to Oklahoma History
Archer County News (Archer City, Tex.), No. 16, Ed. 1 Thursday, April 15, 2004 (open access)

Archer County News (Archer City, Tex.), No. 16, Ed. 1 Thursday, April 15, 2004

Weekly newspaper from Archer City, Texas that includes local, state, and national news along with advertising.
Date: April 15, 2004
Creator: Lewis, Shelley
Object Type: Newspaper
System: The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 82, No. 136, Ed. 1 Thursday, April 15, 2004 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 82, No. 136, Ed. 1 Thursday, April 15, 2004

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: April 15, 2004
Creator: Cash, Wanda Garner
Object Type: Newspaper
System: The Portal to Texas History
The Canadian Record (Canadian, Tex.), Vol. 114, No. 16, Ed. 1 Thursday, April 15, 2004 (open access)

The Canadian Record (Canadian, Tex.), Vol. 114, No. 16, Ed. 1 Thursday, April 15, 2004

Weekly newspaper from Canadian, Texas that includes local, state and national news along with some advertising.
Date: April 15, 2004
Creator: Brown, Laurie Ezzell
Object Type: Newspaper
System: The Portal to Texas History
Centrality and pseudorapidity dependence of charged hadron production at intermediate p{sub t} in Au+Au collisions at {radical}s{sub NN} = 130 GeV (open access)

Centrality and pseudorapidity dependence of charged hadron production at intermediate p{sub t} in Au+Au collisions at {radical}s{sub NN} = 130 GeV

We present STAR measurements of charged hadron production as a function of centrality in Au + Au collisions at {radical}s{sub NN} = 130 GeV. The measurements cover a phase space region of 0.2 < p{sub T} < 6.0 GeV/c in transverse momentum and 11 < {eta} < 1 in pseudorapidity. Inclusive transverse momentum distributions of charged hadrons in the pseudorapidity region 0.5 < |{eta}| < 1 are reported and compared to our previously published results for |{eta}| < 0.5. No significant difference is seen for inclusive p{sub T} distributions of charged hadrons in these two pseudorapidity bins. We measured dN/d{eta} distributions and truncated mean p{sub T} in a region of p{sub T} > P{sub T}{sup cut}, and studied the results in the framework of participant and binary scaling. No clear evidence is observed for participant scaling of charged hadron yield in the measured pT region. The relative importance of hard scattering process is investigated through binary scaling fraction of particle production.
Date: April 15, 2004
Creator: Adams, J.; Aggarwal, M.M.; Ahammed, Z.; Amonett, J.; Anderson, B. D.; Arkhipkin, D. et al.
Object Type: Article
System: The UNT Digital Library
Centrality and pseudorapidity dependence of charged hadron production at intermediate p{sub T} in Au+Au collisions at {radical}s{sub NN} = 130 GeV (open access)

Centrality and pseudorapidity dependence of charged hadron production at intermediate p{sub T} in Au+Au collisions at {radical}s{sub NN} = 130 GeV

We present STAR measurements of charged hadron production as a function of centrality in Au + Au collisions at {radical}s{sub NN} = 130 GeV. The measurements cover a phase space region of 0.2 < p{sub T} < 6.0 GeV/c in transverse momentum and -1 < {eta} < 1 in pseudorapidity. Inclusive transverse momentum distributions of charged hadrons in the pseudorapidity region 0.5 < |{eta}| < 1 are reported and compared to our previously published results for |{eta}| < 0.5. No significant difference is seen for inclusive p{sub T} distributions of charged hadrons in these two pseudorapidity bins. We measured dN/d{eta} distributions and truncated mean p{sub T} in a region of p{sub T} > p{sub T}{sup cut}, and studied the results in the framework of participant and binary scaling. No clear evidence is observed for participant scaling of charged hadron yield in the measured p{sub T} region. The relative importance of hard scattering process is investigated through binary scaling fraction of particle production.
Date: April 15, 2004
Creator: Adams, J.; Aggarwal, M. M.; Ahammed, Z.; Amonett, J.; Anderson, B. D.; Arkhipkin, D. et al.
Object Type: Article
System: The UNT Digital Library
Comanche Chief (Comanche, Tex.), No. 50, Ed. 1 Thursday, April 15, 2004 (open access)

Comanche Chief (Comanche, Tex.), No. 50, Ed. 1 Thursday, April 15, 2004

Weekly newspaper from Comanche, Texas that includes local, state, and national news along with advertising.
Date: April 15, 2004
Creator: Wilkerson, James C., III
Object Type: Newspaper
System: The Portal to Texas History
Comments on Shimony's analysis (open access)

Comments on Shimony's analysis

Shimony's method of analysis does not distinguish adequately between a legitimate assumption of no faster-than-light action in one direction and the to-be-proved assertion of faster-than-light transfer of information in the opposite direction. The virtue is noted of replacing the logical framework based counterfactual concepts by one based on the concept of fixed past and open future.
Date: April 15, 2004
Creator: Stapp, Henry P.
Object Type: Report
System: The UNT Digital Library
Common Threads in Research Across Disciplines: A Reflection (open access)

Common Threads in Research Across Disciplines: A Reflection

Keynote address for the 2004 University Scholars Day delivered by Dr. Samuel Matteson. This keynote speaker discusses common threads of thought and practice that run through what is called "research."
Date: April 15, 2004
Creator: Matteson, Samuel E.
Object Type: Text
System: The UNT Digital Library
COMPARATIVE EVALUATION OF AMBIENT FINE PARTICULATE MATTER (PM2.5) DATA OBTAINED FROM URBAN AND RURAL MONITORING SITES ALONG THE UPPER OHIO RIVER VALLEY (open access)

COMPARATIVE EVALUATION OF AMBIENT FINE PARTICULATE MATTER (PM2.5) DATA OBTAINED FROM URBAN AND RURAL MONITORING SITES ALONG THE UPPER OHIO RIVER VALLEY

Advanced Technology Systems, Inc. (ATS), with Desert Research Institute (DRI) and Ohio University as subcontractors, was contracted by the NETL in September 1998 to manage the Upper Ohio River Valley Project (UORVP), which included the establishment and operation of four ambient air monitoring sites located in the Upper Ohio River Valley (UORV). Two urban and two rural monitoring sites were included in the UORVP. The four sites selected for the UOVRP were collocated at existing local and/or state air quality monitoring stations. The goal of the UORVP was to characterize the nature and composition of PM{sub 2.5} and its precursor gases. In the process, the objectives of the UORVP were to examine the ambient air concentrations of PM{sub 2.5} as compared with the promulgated PM{sub 2.5} standards, the geographical, seasonal and temporal variations of ambient air concentrations of PM{sub 2.5}, the primary chemical constituents of PM{sub 2.5}, and the correlations between ambient air concentrations of PM{sub 2.5} and its precursor gases, other gaseous pollutants and meteorological parameters. A variety of meteorological and pollutant measurement devices, including several different PM{sub 2.5} samplers that provided either real-time or integrated concentration data, were deployed at the monitoring sites. The frequency of integrated sampling …
Date: April 15, 2004
Creator: Khosah, Robinson P.; Shimshock, John P. & Penland, Jerry L.
Object Type: Report
System: The UNT Digital Library
Compatibility Study of Protective Relaying in a Grid-Connected Fuel Cell (open access)

Compatibility Study of Protective Relaying in a Grid-Connected Fuel Cell

A 200-kW fuel cell produced by International Fuel Cells (IFC), a United Technologies Company, began operation at the National Transportation Research Center (NTRC) in early June 2003. The NTRC is a joint Oak Ridge National laboratory (ORNL) and University of Tennessee research facility located in Knoxville, Tennessee. This research activity investigated the protective relaying functions of this fully commercialized fuel cell power plant, which uses ''synthesized'' protective relays. The project's goal is to characterize the compatibility between the fuel cell's interconnection protection system and the local distribution system or electric power system (EPS). ORNL, with assistance from the Electric Power Research Institute-Power Electronics Applications Center (EPRI-PEAC) in Knoxville, Tennessee, monitored and characterized the system compatibility over a period of 6 months. Distribution utility engineers are distrustful of or simply uncomfortable with the protective relaying and hardware provided as part of distributed generation (DG) plants. Part of this mistrust is due to the fact that utilities generally rely on hardware from certain manufacturers whose reliability is well established based on performance over many years or even decades. Another source of concern is the fact that fuel cells and other types of DG do not use conventional relays but, instead, the protective …
Date: April 15, 2004
Creator: Staunton, R.H.
Object Type: Report
System: The UNT Digital Library
The complete sequence of human chromosome 5 (open access)

The complete sequence of human chromosome 5

Chromosome 5 is one of the largest human chromosomes yet has one of the lowest gene densities. This is partially explained by numerous gene-poor regions that display a remarkable degree of noncoding and syntenic conservation with non-mammalian vertebrates, suggesting they are functionally constrained. In total, we compiled 177.7 million base pairs of highly accurate finished sequence containing 923 manually curated protein-encoding genes including the protocadherin and interleukin gene families and the first complete versions of each of the large chromosome 5 specific internal duplications. These duplications are very recent evolutionary events and play a likely mechanistic role, since deletions of these regions are the cause of debilitating disorders including spinal muscular atrophy (SMA).
Date: April 15, 2004
Creator: Schmutz, Jeremy; Martin, Joel; Terry, Astrid; Couronne, Olivier; Grimwood, Jane; Lowry, State et al.
Object Type: Article
System: The UNT Digital Library
Convex Crystal X-ray Spectrometer for Laser Plasma Experiments (open access)

Convex Crystal X-ray Spectrometer for Laser Plasma Experiments

Measuring time and space-resolved spectra is important for understanding Hohlraum and Halfraum plasmas. Experiments at the OMEGA laser have used the Nova TSPEC which was not optimized for the OMEGA diagnostic space envelope or for the needed spectroscopic coverage and resolution. An improved multipurpose spectrometer snout, the MSPEC, has been constructed and fielded on OMEGA. The MSPEC provides the maximal internal volume for mounting crystals without any beam interferences at either 2x or 3x magnification. The RAP crystal is in a convex mounting geometry bent to a 20 cm radius of curvature. The spectral resolution, E/dE, is about 200 at 2.5 keV. The spectral coverage is 2 to 4.5 keV. The MSPEC can record four separate spectra on the framing camera at time intervals of up to several ns. The spectrometer design and initial field-test performance will be presented and compared to that of the TSPEC. Work supported by U. S. DoE/UC LLNL contract W-7405-ENG-48
Date: April 15, 2004
Creator: May, M.; Heeter, R. & Emig, J.
Object Type: Article
System: The UNT Digital Library
Cooper Review (Cooper, Tex.), Vol. 124, No. 16, Ed. 1 Thursday, April 15, 2004 (open access)

Cooper Review (Cooper, Tex.), Vol. 124, No. 16, Ed. 1 Thursday, April 15, 2004

Weekly newspaper from Cooper, Texas that includes local, state, and national news along with advertising.
Date: April 15, 2004
Creator: Pinson, Beth
Object Type: Newspaper
System: The Portal to Texas History
Dante Soft X-ray Power Diagnostic for NIF (open access)

Dante Soft X-ray Power Diagnostic for NIF

Soft x-ray power diagnostics are essential for measuring spectrally resolved the total x-ray flux, radiation temperature, conversion efficiency and albedo that are important quantities for the energetics of indirect drive hohlraums. At the Nova or Omega Laser Facilities, these measurements are performed mainly with Dante, but also with DMX and photo-conductive detectors (PCD's). The Dante broadband spectrometer is a collection of absolute calibrated vacuum x-ray diodes, thin filters and x-ray mirrors used to measure the soft x-ray emission for photon energies above 50 eV.
Date: April 15, 2004
Creator: Dewald, E.; Campbell, K.; Turner, R.; Holder, J.; Landen, O.; Glenzer, S. et al.
Object Type: Article
System: The UNT Digital Library
DART Northwest Irving/DFW Corridor Light Rail project reaches next stage (open access)

DART Northwest Irving/DFW Corridor Light Rail project reaches next stage

News release about a public meeting, hosted by DART, at which the transit agency will present an overview of its plans for a light rail corridor, including an assessment of its environmental impact.
Date: April 15, 2004
Creator: Lyons, Morgan
Object Type: Text
System: The Portal to Texas History
Deindustrialization of the U.S. Economy: The Roles of Trade, Productivity, and Recession (open access)

Deindustrialization of the U.S. Economy: The Roles of Trade, Productivity, and Recession

This report discusses the roles of trade, productivity, and recession regarding deindustrialization of the U.S. Economy.
Date: April 15, 2004
Creator: Elwell, Craig K.
Object Type: Report
System: The UNT Digital Library
Department of Energy: Certain Postretirement Benefits for Contractor Employees Are Unfunded and Program Oversight Could Be Improved (open access)

Department of Energy: Certain Postretirement Benefits for Contractor Employees Are Unfunded and Program Oversight Could Be Improved

A letter report issued by the General Accounting Office with an abstract that begins "The Department of Energy (DOE), which carries out its national security, environmental cleanup, and research missions through extensive use of contractors, faces significant costs for postretirement health and pension benefits for contractor employees. Given DOE's long history of using contractors and the rising cost of postretirement benefits, the Chairman, House Committee on Appropriations, Subcommittee on Energy and Water Development, asked GAO to (1) analyze DOE's estimated financial obligation for postretirement health and pension benefits for contractor employees at the end of fiscal year 2003, (2) determine how DOE evaluates its contractor postretirement health and pension benefit programs and assesses the comparative levels of benefits offered by contractors, and (3) assess how DOE's oversight of these benefits could be enhanced."
Date: April 15, 2004
Creator: United States. General Accounting Office.
Object Type: Report
System: The UNT Digital Library
Deposit Summary (open access)

Deposit Summary

Deposit summary of a total of $125 from the Dallas National Bank on April 15, 2004.
Date: April 15, 2004
Creator: unknown
Object Type: Text
System: The UNT Digital Library
The Dublin Citizen (Dublin, Tex.), Vol. 14, No. 33, Ed. 1 Thursday, April 15, 2004 (open access)

The Dublin Citizen (Dublin, Tex.), Vol. 14, No. 33, Ed. 1 Thursday, April 15, 2004

Weekly newspaper from Dublin, Texas that includes local, state, and national news along with advertising.
Date: April 15, 2004
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Edward Teller's Scientific Life (open access)

Edward Teller's Scientific Life

Edward Teller was one of the great physicists of the twentieth century. His career began just after the key ideas of the quantum revolution of the 1920's were completed, opening vast areas of physics and chemistry to detailed understanding. Thus, his early work in theoretical physics focused on applying the new quantum theory to the understanding of diverse phenomena. These topics included chemical physics, diamagnetism, and nuclear physics. Later, he made key contributions to statistical mechanics, surface physics, solid state, and plasma physics. In many cases, the ideas in these papers are still rich with important ramifications.
Date: April 15, 2004
Creator: Libby, S B & Weiss, M S
Object Type: Article
System: The UNT Digital Library
Electra Star-News (Electra, Tex.), Vol. 98, No. 40, Ed. 1 Thursday, April 15, 2004 (open access)

Electra Star-News (Electra, Tex.), Vol. 98, No. 40, Ed. 1 Thursday, April 15, 2004

Weekly newspaper from Electra, Texas that includes local, state, and national news along with advertising.
Date: April 15, 2004
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History