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Yoakum Herald-Times (Yoakum, Tex.), Vol. 111, No. 22, Ed. 1 Wednesday, May 28, 2003 (open access)

Yoakum Herald-Times (Yoakum, Tex.), Vol. 111, No. 22, Ed. 1 Wednesday, May 28, 2003

Weekly newspaper from Yoakum, Texas that includes local, state, and national news along with advertising.
Date: May 28, 2003
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Accounting Reform After Enron: Issues in the 108th Congress (open access)

Accounting Reform After Enron: Issues in the 108th Congress

This report discusses the anxieties within Congress in the wake of the Enron scandal. Moreover, the report notes that the 108th Congress is not likely to pass legislative reform as extreme as the 107th Congress, but will still confront issues of accounting reform. The report also highlights what the 108th Congress plans to reform.
Date: May 28, 2003
Creator: Jickling, Mark
Object Type: Report
System: The UNT Digital Library
Generation of High Brightness X-Rays with the PLEIADES Thomson X-Ray Source (open access)

Generation of High Brightness X-Rays with the PLEIADES Thomson X-Ray Source

The use of short laser pulses to generate high peak intensity, ultra-short x-ray pulses enables exciting new experimental capabilities, such as femtosecond pump-probe experiments used to temporally resolve material structural dynamics on atomic time scales. PLEIADES (Picosecond Laser Electron InterAction for Dynamic Evaluation of Structures) is a next generation Thomson scattering x-ray source being developed at Lawrence Livermore National Laboratory (LLNL). Ultra-fast picosecond x-rays (10-200 keV) are generated by colliding an energetic electron beam (20-100 MeV) with a high intensity, sub-ps, 800 nm laser pulse. The peak brightness of the source is expected to exceed 10{sup 20} photons/s/0.1% bandwidth/mm2/mrad2. Simulations of the electron beam production, transport, and final focus are presented. Electron beam measurements, including emittance and final focus spot size are also presented and compared to simulation results. Measurements of x-ray production are also reported and compared to theoretical calculations.
Date: May 28, 2003
Creator: Brown, W J; Anderson, S G; Barty, C P J; Crane, J K; Cross, R R; Fittinghoff, D N et al.
Object Type: Article
System: The UNT Digital Library
Laboratory Measurements of the Unsaturated Hydraulic Properties at the Vadose Zone Transport Field Study Site (open access)

Laboratory Measurements of the Unsaturated Hydraulic Properties at the Vadose Zone Transport Field Study Site

This report presents sampling and measurement procedures and measurement results for 60 samples from the S-1, S-2, and S-3 bore holes at the Vadose Zone Transport Field Study Leak Simulation Test Site, located at the Sisson and Lu (1984) injection site in the 200 East Area of the Hanford Site. Measured data include particle size distributions (19 points), bulk densities (and bulk density-derived porosity), water retention characteristics (16 static points), and saturated and unsaturated hydraulic conductivities. The coring and sub-sampling procedures led to partially, and occasionally completely, disturbed samples. Textural analyses showed that most of the samples could be classified as sand, some as loamy sands, and two as sandy loams. The multi-step outflow method failed for seven samples, yielding 53 samples for which hydraulic parameters were available. Van Genuchten and Brooks-Corey water retention parameters were determined using static retention points (derived from multi-step outflow time series). Inverse analyses of the multi-step outflow data yielded additional unsaturated hydraulic conductivity parameters. Unfortunately, the inverse analyses had some problems in reaching stable solutions. Therefore, we sometimes fixed saturated and residual water contents and saturated hydraulic conductivities at initial values. Even then, it was not possible to reach a solution for two samples …
Date: May 28, 2003
Creator: Schaap, Marcel G.; Shouse, Pete J. & Meyer, Philip D.
Object Type: Report
System: The UNT Digital Library
Electrical Impedance Tomography at the A-014 Outfall for Detection of DNAPL (open access)

Electrical Impedance Tomography at the A-014 Outfall for Detection of DNAPL

Some laboratory studies (e.g., Olheoft, unpublished report 2001) have shown that the low frequency electrical properties of some soil minerals contaminated by dense non-aqueous phase liquid (DNAPL) may be sufficiently unique to make it possible to use electrical impedance tomography (EIT) to differentiate normal electrical heterogeneities of the subsurface from DNAPL contamination. The goal of this work is to determine if electrical impedance measurements of the soil and groundwater at a contaminated site can be used to detect the presence and map the distribution of DNAPL. The strategy for achieving this goal is to predict the presence and location of DNAPL from an appropriately processed data set taken at the A-014 outfall site at Savannah River Site, which is suspected of near-surface contamination, and then to compare those predictions with results of sample analysis from the same region. Complete agreement between the predictions and the sampling data will be strong (but not conclusive) evidence that DNAPL contamination alters the subsurface materials in a way that can be detected and mapped using low frequency electrical methods. A total lack of agreement will be interpreted to mean that electrical methods cannot at this time be used to locate contamination. The results will …
Date: May 28, 2003
Creator: Daily, W & Ramirez, A
Object Type: Report
System: The UNT Digital Library
The “Little Davis-Bacon” Acts and State Prevailing Wage Standards (open access)

The “Little Davis-Bacon” Acts and State Prevailing Wage Standards

This report introduces the state prevailing wage laws and provides an inventory of states in which, to varying degrees, they are in effect.
Date: May 28, 2003
Creator: Whittaker, William G.
Object Type: Report
System: The UNT Digital Library
War On Drugs: Legislation in the 108th Congress and Related Developments (open access)

War On Drugs: Legislation in the 108th Congress and Related Developments

None
Date: May 28, 2003
Creator: Eddy, Mark
Object Type: Report
System: The UNT Digital Library
The Colony Courier-Leader (The Colony, Tex.), Vol. 22, No. 16, Ed. 1 Wednesday, May 28, 2003 (open access)

The Colony Courier-Leader (The Colony, Tex.), Vol. 22, No. 16, Ed. 1 Wednesday, May 28, 2003

Weekly newspaper from The Colony, Texas that includes local, state, and national news along with advertising.
Date: May 28, 2003
Creator: Shafer, Leah
Object Type: Newspaper
System: The Portal to Texas History
The Alvin Advertiser (Alvin, Tex.), Ed. 1 Wednesday, May 28, 2003 (open access)

The Alvin Advertiser (Alvin, Tex.), Ed. 1 Wednesday, May 28, 2003

Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date: May 28, 2003
Creator: Schwind, Jim & Holton, Kathleen
Object Type: Newspaper
System: The Portal to Texas History
Energy deposition limits in a Nb3Sn separation dipole in front of the LHC high-luminosity inner triplet (open access)

Energy deposition limits in a Nb3Sn separation dipole in front of the LHC high-luminosity inner triplet

Interaction region inner triplets are among the systems which may limit the LHC performance. An option for a new higher luminosity IR is a double-bore inner triplet with separation dipoles placed in front of the first quadrupole. The radiation load on the first dipole, resulting from pp-interactions, is a key parameter to determine the feasibility of this approach. Detailed energy deposition calculations were performed with the MARS14 code for two Nb{sub 3}Sn dipole designs with no superconductor on the mid-plane. Comparison of peak power densities with those in the baseline LHC IR suggests that it may be possible to develop workable magnets for luminosities up to 10{sub 35} cm{sup -2} s{sup -1}.
Date: May 28, 2003
Creator: al., Nikolai V. Mokhov et
Object Type: Article
System: The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Wednesday, May 28, 2003 (open access)

The Express-Star (Chickasha, Okla.), Ed. 1 Wednesday, May 28, 2003

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date: May 28, 2003
Creator: Bush, Kent
Object Type: Newspaper
System: The Gateway to Oklahoma History
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 88, No. 220, Ed. 1 Wednesday, May 28, 2003 (open access)

Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 88, No. 220, Ed. 1 Wednesday, May 28, 2003

Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date: May 28, 2003
Creator: Broaddus, Matthew B.
Object Type: Newspaper
System: The Gateway to Oklahoma History
Accelerator related backgrounds in the LHC forward detectors (open access)

Accelerator related backgrounds in the LHC forward detectors

Detailed Monte Carlo simulations are performed on radiation environment in the LHC IP5 interaction region at the locations of the TOTEM Roman Pots proposed to detect particles produced at very small angles in the elastic scattering and diffraction dissociation processes at the LHC. Radiation loads on these detectors are calculated with the MARS14 code both of the pp-collision origin and beam loss related (beam-gas and tails from collimators).
Date: May 28, 2003
Creator: al., Nikolai V. Mokhov et
Object Type: Article
System: The UNT Digital Library
Effect of Airflow and Heat Input Rates on Duct Efficiency. (open access)

Effect of Airflow and Heat Input Rates on Duct Efficiency.

Reducing the airflow and heat input rates of a furnace that is connected to a duct system in thermal contact with unconditioned spaces can significantly reduce thermal distribution efficiency. This is a straightforward theoretical calculation based on the increased residence time of the air in the duct at the lower flow rate, which results in greater conduction losses. Experimental tests in an instrumented residential-size duct system have confirmed this prediction. Results are compared with the heat-loss algorithm in ASHRAE Standid 152P. The paper concludes with a discussion of possible remedies for this loss of efficiency in existing systems and optional design strategies in new construction.
Date: May 28, 2003
Creator: Andrews, J. W.
Object Type: Report
System: The UNT Digital Library
Fermilab booster beam collimation and shielding (open access)

Fermilab booster beam collimation and shielding

The beam power in the upgraded Booster at 8 GeV and 10 Hz will be 64 kW. Beam loss can result in high radiation loads in the ring. The purpose of a new beam halo cleaning system is to localize proton losses in specially shielded regions. Calculations show that this 2-stage collimation system will localize about 99% of beam loss in straight sections 6 and 7 and immediately downstream. Beam loss in the rest of the machine will be on average 0.1W/m. Local shielding will provide tolerable prompt and residual radiation levels in the tunnel, above the tunnel at the surface and in the sump water. Results of thorough MARS calculations are presented for a new design which includes shielding integrated with the collimators, motors and controls ensuring a high performance and facilitating maintenance. First measurements of the collimation efficiency are presented.
Date: May 28, 2003
Creator: al., Nikolai V. Mokhov et
Object Type: Article
System: The UNT Digital Library
Linearization of the Fermilab recycler high level RF (open access)

Linearization of the Fermilab recycler high level RF

In studying the Recycler high level RF, it was found that at 89 kHz, the lowest frequency required by the system, some nonlinearities in magnitude and phase were discovered. The visible evidence of this was that beam injected in a barrier bucket had a definite slope at the top. Using a network analyzer, the S-parameter S{sub 21} was realized for the overall system and from mathematical modeling a second order numerator and denominator transfer function was found. The inverse of this transfer function gives their linearization transfer function. The linearization transfer function was realized in hardware by summing a high pass, band pass and low pass filter together. The resulting magnitude and phase plots, along with actual beam response will be shown.
Date: May 28, 2003
Creator: Dey, Joseph E; Kubicki, Tom & Reid, John
Object Type: Article
System: The UNT Digital Library
Impedances of Tevatron separators (open access)

Impedances of Tevatron separators

The impedances of the Tevatron separators are revisited and are found to be negligibly small in the few hundred MHz region, except for resonances at 22.5 MHz. The later are contributions from the power cables which may drive head-tail instabilities if the bunch is long enough.
Date: May 28, 2003
Creator: Ng, K. Y.
Object Type: Article
System: The UNT Digital Library
Věstník (Temple, Tex.), Vol. 91, No. 22, Ed. 1 Wednesday, May 28, 2003 (open access)

Věstník (Temple, Tex.), Vol. 91, No. 22, Ed. 1 Wednesday, May 28, 2003

Weekly Czech and English language newspaper from Temple, Texas published as the official organ of the Slavonic Benevolent Order of the State of Texas that includes news of interest to members along with advertising.
Date: May 28, 2003
Creator: Vanicek, Brian
Object Type: Newspaper
System: The Portal to Texas History
An Archaeological Evaluation of System Improvements for the North Milam Water Supply Corporation (open access)

An Archaeological Evaluation of System Improvements for the North Milam Water Supply Corporation

An archaeological evaluation of proposed pipeline system improvements in northern Milam County.
Date: May 28, 2003
Creator: Skinner, S. Alan
Object Type: Report
System: The Portal to Texas History
Qualitative Reasoning for Additional Die Casting Applications (open access)

Qualitative Reasoning for Additional Die Casting Applications

If manufacturing incompatibility of a product can be evaluated at the early product design stage, the designers can modify their design to reduce the effect of potential manufacturing problems. This will result in fewer manufacturing problems, less redsign, less expensive tooling, lower cost, better quality, and shorter development time. For a given design, geometric reasoning can predict qualitatively the behaviors of a physical manufacturing process by representing and reasoning with incomplete knowledge of the physical phenomena. It integrates a design with manufacturing processes to help designers simultaneously consider design goals and manufacturing constraints during the early design stage. The geometric reasoning approach can encourage design engineers to qualitatively evaluate the compatibility of their design with manufacturing limitations and requirements.
Date: May 28, 2003
Creator: Miller, R. Allen; Cui, Dehua & Ma, Yuming
Object Type: Report
System: The UNT Digital Library
Illustrated Paperboy (Cleveland, Tex.), Vol. 11, No. 10, Ed. 1 Wednesday, May 28, 2003 (open access)

Illustrated Paperboy (Cleveland, Tex.), Vol. 11, No. 10, Ed. 1 Wednesday, May 28, 2003

Weekly newspaper from Cleveland, Texas that includes local, county, and state news along with extensive advertising.
Date: May 28, 2003
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The Panola Watchman (Carthage, Tex.), Vol. 130, No. 43, Ed. 1 Wednesday, May 28, 2003 (open access)

The Panola Watchman (Carthage, Tex.), Vol. 130, No. 43, Ed. 1 Wednesday, May 28, 2003

Semiweekly newspaper from Carthage, Texas that includes local, state, and national news along with advertising.
Date: May 28, 2003
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The Llano News (Llano, Tex.), Vol. 115, No. 34, Ed. 1 Wednesday, May 28, 2003 (open access)

The Llano News (Llano, Tex.), Vol. 115, No. 34, Ed. 1 Wednesday, May 28, 2003

Weekly newspaper from Llano, Texas that includes local, state, and national news along with advertising.
Date: May 28, 2003
Creator: Stephenson, Jimmy
Object Type: Newspaper
System: The Portal to Texas History
The Oklahoma Daily (Norman, Okla.), Vol. 86, No. 155, Ed. 1 Wednesday, May 28, 2003 (open access)

The Oklahoma Daily (Norman, Okla.), Vol. 86, No. 155, Ed. 1 Wednesday, May 28, 2003

Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date: May 28, 2003
Creator: King, Christopher R.
Object Type: Newspaper
System: The Gateway to Oklahoma History