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460 Matching Results
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The Baytown Sun (Baytown, Tex.), Vol. 84, No. 15, Ed. 1 Monday, December 20, 2004
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
December 20, 2004
Creator:
Cash, Wanda Garner
Object Type:
Newspaper
System:
The Portal to Texas History
Concept Paper for Real-Time Temperature and Water QualityManagement for San Joaquin River Riparian Habitat Restoration
The San Joaquin River Riparian Habitat Restoration Program (SJRRP) has recognized the potential importance of real-time monitoring and management to the success of the San Joaquin River (SJR) restoration endeavor. The first step to realizing making real-time management a reality on the middle San Joaquin River between Friant Dam and the Merced River will be the installation and operation of a network of permanent telemetered gauging stations that will allow optimization of reservoir releases made specifically for fish water temperature management. Given the limited reservoir storage volume available to the SJJRP, this functionality will allow the development of an adaptive management program, similar in concept to the VAMP though with different objectives. The virtue of this approach is that as management of the middle SJR becomes more routine, additional sensors can be added to the sensor network, initially deployed, to continue to improve conditions for anadromous fish.
Date:
December 20, 2004
Creator:
Quinn, Nigel W.T.
Object Type:
Report
System:
The UNT Digital Library
CONCEPTUAL DESIGN FOR A RADICALLY SMALLER, HIGHLY ADAPTIVE AND APPLICATION-FLEXIBLE MINING MACHINE FOR UTILITY AND DEVELOPMENT WORK
The aim of this research project was to develop a preliminary ''conceptual design'' for a radically smaller, highly adaptive and application-flexible underground coal mining machine, for performing non-production utility work and/or also undertake limited production mining for the recovery of reserves that would otherwise be lost. Whereas historically, mining philosophies have reflected a shift to increasing larger mechanized systems [such as the continuous miner (CM)], specific mining operations that do not benefit from the economy of the large mining equipment are often ignored or addressed with significant inefficiencies. Developing this prototype concept will create a new class of equipment that can provide opportunities to re-think the very structure of the mining system across a broad range of possibilities, not able to be met by existing machinery. The approach involved pooling the collective input from mining professionals, using a structured listing of desired inputs in the form of a questionnaire, which was used to define the range of desired design specifications. From these inputs, a conceptual specification was blended, by the author, to embody the general concurrence of mission concepts for this machine.
Date:
December 20, 2004
Creator:
Stern, Andrew H.
Object Type:
Report
System:
The UNT Digital Library
Consistency between Angular Distributions and Integral Quantities Calculated with the Nuclear Ramsauer Model
This report reviews the connection between the exact expression for the scattering amplitude and its approximation by the nuclear Ramsauer model. This approximation is well defined only for integral values of kR, the product of the neutron wave number and a nuclear radius parameter. Using the model between these integral values requires the introduction of an interpolation scheme. We show the effects on physical observables of adding an extra term to the scattering amplitude. By choosing the functional form of this term it is possible to obtain smooth behavior with energy of some of the physical observables, but not all.
Date:
December 20, 2004
Creator:
Dietrich, F S
Object Type:
Report
System:
The UNT Digital Library
Defense Cleanup and Environmental Programs: Authorization and Appropriations for FY2005
This report provides background information on each defense-related environmental program, discusses key funding issues, and examines relevant provisions in authorization legislation and appropriations for FY2005.
Date:
December 20, 2004
Creator:
Bearden, David M.
Object Type:
Report
System:
The UNT Digital Library
Defense Inventory: DOD and Prime Contractors Adhered to Requirements in Selected Contracts for Overseeing Spare Parts Quality
A letter report issued by the Government Accountability Office with an abstract that begins "In the 2004 Defense Appropriations Act, Congress mandated that GAO examine and report on the oversight of prime contractors by the Department of Defense (DOD) and the oversight of subcontractors by the prime contractors. Contract quality assurance oversight is intended to assess whether contractors are capable of and are providing supplies or services that meet contract quality and technical requirements. Providing effective oversight is challenging. DCMA recognizes that the risk of nonconforming parts reaching end users exists, given the diversity of contracts, parts, and products used to meet weapon systems requirements and uses a risk management process to guide its efforts. For fiscal year 2003, government quality assurance oversight was required for approximately 273,000 contracts. GAO determined (1) whether DOD provided quality assurance oversight and enforcement over its spare parts prime contractors, (2) if prime contractors provided quality assurance oversight over their subcontractors, and (3) how DOD held prime contractors accountable for overseeing the subcontractors' work. To address these objectives, GAO judgmentally selected and reviewed 15 contracts awarded to 11 prime contractors by the services and the Defense Logistics Agency. In commenting on a draft of …
Date:
December 20, 2004
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Defense Transformation: Background and Oversight Issues for Congress
This report addresses defense transformation from a Department of Defense (DOD)-wide perspective.It provides the background and oversight issues for Congress regarding Defense Transformation.
Date:
December 20, 2004
Creator:
O'Rourke, Ronald
Object Type:
Report
System:
The UNT Digital Library
Design, Construction, and Operation of a Laboratory Scale Reactorfor the Production of High-Purity, Isotopically Enriched Bulksilicon
The design and operation of a recirculating flow reactor designed to convert isotopically enriched silane to polycrystalline Si with high efficiency and chemical purity is described. The starting material is SiF{sub 4}, which is enriched in the desired isotope by a centrifuge method and subsequently converted to silane. In the reactor, the silane is decomposed to silicon on the surface of a graphite starter rod (3 mm diameter) heated to 700-750 C. Flow and gas composition (0.3-0.5% silane in hydrogen) are chosen to minimize the generation of particles by homogeneous nucleation of silane and to attain uniform deposition along the length of the rod. Growth rates are 5 {micro}m/min, and the conversion efficiency is greater than 95%. A typical run produces 35 gm of polycrystalline Si deposited along a 150 mm length of the rod. After removal of the starter rod, dislocation-free single crystals are formed by the floating zone method. Crystals enriched in all 3 stable isotopes of Si have been made: {sup 28}Si (99.92%), {sup 29}Si (91.37%), and {sup 30}Si (88.25%). Concentrations of electrically active impurities (P and B) are as low as mid-10{sup 13} cm{sup -3}. Concentrations of C and O lie below 10{sup 16} and 10{sup …
Date:
December 20, 2004
Creator:
Ager, J. W., III; Beeman, J. W.; Hansen, W. L. & Haller, E. E.
Object Type:
Report
System:
The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Monday, December 20, 2004
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 20, 2004
Creator:
Bush, Kent
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
First Responder Grant Formulas: A Comparison of Formula Provisions in S.2845 and H.R. 10, 108th Congress
None
Date:
December 20, 2004
Creator:
Reese, Shawn
Object Type:
Report
System:
The UNT Digital Library
The Gender Wage Gap and Pay Equity: Is Comparable Worth the Next Step?
This report examines the trend in the male-female wage gap and the explanations offered for its existence. Remedies proposed for the gender wage gap's amelioration are addressed, with an in-depth focus on the comparable worth approach to achieving "pay equity" or "fair pay" between women and men.
Date:
December 20, 2004
Creator:
Levine, Linda
Object Type:
Report
System:
The UNT Digital Library
Government Activities to Protect the Electric Grid
This report provides a description of initiatives within the Federal Energy Regulatory Commission and the Departments of Energy, Homeland Security, and Defense to protect the physical transmission infrastructure.
Date:
December 20, 2004
Creator:
Abel, Amy
Object Type:
Report
System:
The UNT Digital Library
The Impact of humidity above stratiform clouds on indirect aerosol climate forcing
Some of the global warming effect of anthropogenic greenhouse gases is offset by increased solar reflection from clouds with smaller droplets that form on increased numbers of cloud condensation nuclei in polluted air. The global magnitude of the resulting indirect aerosol climate forcing is estimated to be comparable (and opposed) to the anthropogenic carbon dioxide forcing, but estimates are highly uncertain because of complexities in characterizing the physical process that determine global aerosol and cloud populations and their interactions. Beyond reflecting sunlight more effectively, smaller droplets are less efficient at producing precipitation, and decreased precipitation is expected to result in increased cloud water and cloud cover, further increasing the indirect forcing. Yet polluted marine boundary-layer clouds are not generally observed to hold more water. Here we use model simulations of stratocumulus clouds to show that suppression of precipitation from increased droplet concentrations leads to increased cloud water only when sufficient precipitation reaches the surface, a condition favored when the overlying air is moist. Otherwise, aerosol induced suppression of precipitation enhances entrainment of overlying dry air, thereby reducing cloud water and diminishing the indirect climate forcing.
Date:
December 20, 2004
Creator:
Ackerman, A. S.; Kirkpatrick, M. P.; Stevens, D. E. & Toon, O. B.
Object Type:
Article
System:
The UNT Digital Library
Iraq: Recent Developments in Reconstruction Assistance
Large-scale reconstruction assistance programs are being undertaken by the The United States following the war with Iraq. To fund such programs, Congress approved on April 12, 2003, a $2.48 billion Iraq Relief and Reconstruction Fund in the FY2003 Supplemental Appropriation. On November 6, 2003, the President signed into law P.L. 108-106, the FY2004 Emergency Supplemental Appropriation, providing $18.4 billion for Iraq reconstruction. Contributions pledged at the October 24, 2003, Madrid donor conference by other donors amounted to roughly $3.6 billion in grant aid and as much as $13.3 billion in possible loans.
Date:
December 20, 2004
Creator:
Tarnoff, Curt
Object Type:
Report
System:
The UNT Digital Library
K-12 Teacher Quality: Issues and Legislative Action
None
Date:
December 20, 2004
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Latin America and the Caribbean: Issues for the 108th Congress
None
Date:
December 20, 2004
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Membership of the 109th Congress: A Profile
None
Date:
December 20, 2004
Creator:
Amer, Mildred L.
Object Type:
Report
System:
The UNT Digital Library
On Rapidly Rotating Magnetic Core-Collapse Supernovae
The authors have analyzed magnetic effects which may occur in rapidly rotating core collapse supernovae. They consider effects from both magnetic turbulence and the formation of magnetic bubbles. For magnetic turbulence they have made a perturbative analysis for the spherically symmetric core-collapse supernova model that incorporates the build up of magnetic field energy in the matter accreting onto the proto-neutron star shortly after collapse and bounce. This significantly modifies the pressure profile and increases the heating of the material above the proto-neutron star resulting in an explosion even in rotating stars which would not explode otherwise. Regarding magnetic bubbles it is shown that a model with an initial uniform magnetic field ({approx} 10{sup 8}) gauss and uniform angular velocity of ({approx} 0.1 rad sec{sup -1}) can form magnetic bubbles due to the very non homologous nature of the collapse. It is estimated that the buoyancy of the bubbles causes matter in the proto-neutron star to rise, carrying neutrino-rich material to the neutron-star surface. This increases the neutrino luminosity sufficiently at early times to achieve a successful neutrino-driven explosion. Both magnetic mechanisms thus provide new means for initiating a Type II core-collapse supernova.
Date:
December 20, 2004
Creator:
Wilson, J. R.; Mathews, G. J. & Dalhed, H. E.
Object Type:
Article
System:
The UNT Digital Library
Overview of the 2004 Corporate Tax Provisions: Revenue Effects
None
Date:
December 20, 2004
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
The Physical Basis of Lg Generation by Explosion Sources
The goal of this project has been to develop a quantitative predictive capability for explosion-generated Lg phases with a sound and unambiguous physical basis. The research program consisted of a theoretical investigation of explosion-generated Lg combined with an observational study. The specific question addressed by this research program is how the Lg phase is generated by underground nuclear explosions. This question is fundamental to how Lg phases are interpreted for use in explosion yield estimation and earthquake/explosion discrimination. To constrain modeling, we have extensively reviewed the existing literature and complemented that work with an examination of several explosion data sets, most notably: (1) Degelen Mountain explosions recorded between 7 and 57 km, with corresponding recordings at Borovoye, at approximately 650 km; (2) recordings from Russian deep seismic sounding experiments; (3) NTS explosion sources including the NPE and nuclear tests covering a range of source depths and media properties. A simple point explosion in an infinite medium generates no shear waves, so the Lg phase is generated entirely by non-spherical components of the source and conversions through reflections and scattering. We find that the most important contributors to the Lg phase are: (1) P to S conversion at the free surface …
Date:
December 20, 2004
Creator:
Stevens, J. L.; Baker, G. E.; Xu, H.; Bennett, T. J.; Rimer, N. & Day, S. D.
Object Type:
Report
System:
The UNT Digital Library
Response to Comment by H. Lough, Department of Civil Engineering, University of Canterbury, Christchurch, New Zealand, on the Paper " Stream Depletion Predictions using Pumping Test Data from A Heterogeneous Stream-Aquifer System (A Case Study from the Gr
We thank H. Lough for her interest in our data set and the attempt to re-analyze our results (Kollet and Zlotnik, 2003) using the recent model by Hunt (2003). We welcome others to share our unique data set of the pumping test from the Prairie Creek site, Nebraska, USA. Nevertheless we believe that this particular attempt failed, because H. Lough selected a wrong model of semi-confined aquifer conditions for the interpretation of the pumping test data, which was collected in an unconfined aquifer. H. Lough based her selection on the three distinct drawdown segments observed during the test. It is well known that geologically distinct aquifers can yield a three-segment drawdown response under pumping conditions (e.g., Streltsova, 1988). Examples include unconfined aquifers (e.g., Neuman, 1972; Moench, 1997), aquifers with double porosity or fractures (e.g., Barenblatt et al., 1960; Boulton and Streltsova-Adams, 1978), and (semi-) confined aquifers in contact with aquitards (e.g. Cooley and Case, 1973; Moench, 1985). At the Prairie Creek site the aquifer is unconfined. The interpretation of the pumping test data collected at the site using type curves that are valid for an aquifer-aquitard system is a mistake. In fact, this approach illustrates a typical problem associated with …
Date:
December 20, 2004
Creator:
Kollet, S J & Zlotnik, V A
Object Type:
Article
System:
The UNT Digital Library
Salaries of Members of Congress: Congressional Votes, 1990-2004
None
Date:
December 20, 2004
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Salient Points for Tracking Moving Objects in Video
Detection and tracking of moving objects is important in the analysis of video data. One approach is to maintain a background model of the scene and subtract it from each frame to detect the moving objects which can then be tracked using Kalman or particle filters. In this paper, we consider simple techniques based on salient points to identify moving objects which are tracked using motion correspondence. We focus on video with a large field of view, such as a traffic intersection with several buildings nearby. Such scenes can contain several salient points, not all of which move between frames. Using public domain video and two types of salient points, we consider how to make these techniques computationally efficient for detection and tracking. Our early results indicate that salient regions obtained using the Lowe keypoints algorithm and the Scale-Saliency algorithm can be used successfully to track vehicles in moderate resolution video.
Date:
December 20, 2004
Creator:
Kamath, C; Gezahegne, A; Newsam, S & Roberts, G M
Object Type:
Article
System:
The UNT Digital Library
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 90, No. 84, Ed. 1 Monday, December 20, 2004
Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 20, 2004
Creator:
Broaddus, Matthew B.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History