The equations of radiation transport for thermal photons are notoriously difficult to solve in thick media without resorting to asymptotic approximations such as the diffusion limit. One source of this difficulty is that in thick, absorbing media thermal emission is almost completely balanced by strong absorption. In a previous publication [SB03], the photon transport equation was written in terms of the deviation of the specific intensity from the local equilibrium field. We called the new form of the equations the difference formulation. The difference formulation is rigorously equivalent to the original transport equation. It is particularly advantageous in thick media, where the radiation field approaches local equilibrium and the deviations from the Planck distribution are small. The difference formulation for photon transport also clarifies the diffusion limit. In this paper, the transport equation is solved by the Symbolic Implicit Monte Carlo (SIMC) method and a comparison is made between the standard formulation and the difference formulation. The SIMC method is easily adapted to the derivative source terms of the difference formulation, and a remarkable reduction in noise is obtained when the difference formulation is applied to problems involving thick media.

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

Una fotografía de Ann Marie Weiss, presidenta de DFW International y presidenta y fundadora de Dallas International. Lleva un top rojo y mira a la multitud. Detrás de ella hay varias banderas grandes de varios países.

Una fotografía de Ann Marie Weiss, presidenta de DFW International y presidenta y fundadora de Dallas International. Habla por un micrófono en un podio junto a un cartel. Detrás de ella hay banderas de varios países.

A photograph of Ann Marie Weiss, the President of DFW International and President and Founder of Dallas International. She speaks into a microphone at a podium next to a poster that reads (in part): "Dallas International Festival." Behind her are flags from various countries, including the United States.

This report provides a summary of legislative attempts from the 95th through the 108th Congresses, with emphasis on the 107th and 108th Congress, to address the issues of energy development and preservation in the Refuge.

In response to the 9/11 Commission’s aviation security-related recommendations, two bills — H.R. 5121 and H.R. 10 — introduced in the House contain several provisions to enhance aviation security. Additionally, floor amendments to S. 2845, the National Intelligence Reform Act of 2004, contain numerous aviation security provisions, many of which address 9/11 Commission recommendations related to aviation safety. S. 2845 was passed (96-2) by the Senate on October 6, 2004. The House passed H.R. 10 on October 8 by a vote of 282-134. A conference has been requested to resolve numerous differences between H.R. 10 and S. 2845.

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

This report is on Border Security: Fences Along the U.S. International Border.

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

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

This paper reports calculations for compressed Ce (4f{sup 1}), Pr (4f{sup 2}), and Nd (4f{sup 3}) using a combination of the local-density approximation (LDA) and dynamical mean field theory (DMFT), or LDA+DMFT. The 4f moment, spectra, and the total energy among other properties are examined as functions of volume and atomic number for an assumed face-centered cubic (fcc) structure. These materials are seen to be strongly localized at ambient pressure and for compressions up through the experimentally observed fcc phases ({gamma} phase for Ce), in the sense of having fully formed Hund's rules moments and little 4f spectral weight at the Fermi level. Subsequent compression for all three lanthanides brings about significant deviation of the moments from their Hund's rules values, a growing Kondo resonance at the fermi level, an associated softening in the total energy, and quenching of the spin orbit since the Kondo resonance is of mixed spin-orbit character while the lower Hubbard band is predominantly j = 5/2. while the most dramatic changes for Ce occur within the two-phase region of the {gamma}-{alpha} volume collapse transition, as found in earlier work, those for Pr and Nd occur within the volume range of the experimentally observed distorted fcc …

A Compact Torus Accelerator (CTA) is used to accelerate a Compact Torus (CT) to 35 MJ kinetic energy which is focused to a 20 mm diameter where its kinetic energy is converted to a shaped x-ray pulse of 30 MJ. The capsule yield with a prescribed radiation profile is calculated to be (gain 60 times 30 MJ) 1.8 GJ. Schemes for achieving this profile are described. The CT is accelerated in a length of 30 m within an annulus of 150 mm ID and 300 mm OD where the maximum magnetic field is 28 T. A 2.5 m conical taper reduces the mean diameter of the CT from 225 mm to 20 mm. The conical section is made out of solid Li{sub 2}BeF{sub 4}. The target with its frozen conical guide section is accurately placed at the end of the accelerator about once per second. The reactor called HYLIFE uses liquid jets to attenuate blast effects including shrapnel from the shattered conical guide section and radiation so that the vessel is expected to last 30 years. The calculated cost of electricity is estimated (in constant 1988 dollars) to be about 4.8 cents/kW {center_dot} h compared to the future cost of …

Bechtel National, Inc. has been contracted by the Department of Energy to design a Waste Treatment and Immobilization Plant (WTP) to stabilize liquid radioactive waste that is stored at the Hanford Site as part of the River Protection Project (RPP). Because of its experience with radioactive waste stabilization, the Savannah River National Laboratory (SRNL) of the Westinghouse Savannah River Company is working with Bechtel and Washington Group International, to help design and test certain parts of the waste treatment facility. One part of the process is the separation of radioactive solids from the liquid wastes by cross-flow ultrafiltration. To test this process a cross-flow filter was used that was prototypic in porosity, length, and diameter, along with a simulated radioactive waste slurry, made to prototypically represent the chemical and physical characteristics of a Hanford waste in tank 241-AY-102/C-106. To mimic the filtration process the waste slurry undergoes several steps, including dewatering and washing. During dewatering the concentration of undissolved solids (UDS) of the simulated AY102/C106 waste is increased from 12 wt percent to at least 20 wt percent. Once at the higher concentration the waste must be washed to prepare for its eventual receipt in a High Level Radioactive Waste …

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

This memo presents a design of a 3 x 3 quadrupole array for HIF. It contains 3 D magnetic field computations of the array build with racetrack coils with and without different shields. It is shown that it is possible to have a low error magnetic field in the cells and shield the stray fields to acceptable levels. The array design seems to be a practical solution to any size array for future multi-beam heavy ion fusion drivers.

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This report provides information regarding options available, their advantages and disadvantages, and the costs for pursuing activities to advance Smith River Rancheria toward an energy program that reduces their energy costs, allows greater self-sufficiency and stimulates economic development and employment opportunities within and around the reservation. The primary subjects addressed in this report are as follow: (1) Baseline Assessment of Current Energy Costs--An evaluation of the historical energy costs for Smith River was conducted to identify the costs for each component of their energy supply to better assess changes that can be considered for energy cost reductions. (2) Research Viable Energy Options--This includes a general description of many power generation technologies and identification of their relative costs, advantages and disadvantages. Through this research the generation technology options that are most suited for this application were identified. (3) Project Development Considerations--The basic steps and associated challenges of developing a generation project utilizing the selected technologies are identified and discussed. This included items like selling to third parties, wheeling, electrical interconnections, fuel supply, permitting, standby power, and transmission studies. (4) Energy Conservation--The myriad of federal, state and utility programs offered for low-income weatherization and utility bill payment assistance are identified, their qualification …

This report provides information regarding options available, their advantages and disadvantages, and the costs for pursuing activities to advance Smith River Rancheria toward an energy program that reduces their energy costs, allows greater self-sufficiency and stimulates economic development and employment opportunities within and around the reservation. The primary subjects addressed in this report are as follows: (1) Baseline Assessment of Current Energy Costs--An evaluation of the historical energy costs for Smith River was conducted to identify the costs for each component of their energy supply to better assess changes that can be considered for energy cost reductions. (2) Research Viable Energy Options--This includes a general description of many power generation technologies and identification of their relative costs, advantages and disadvantages. Through this research the generation technology options that are most suited for this application were identified. (3) Project Development Considerations--The basic steps and associated challenges of developing a generation project utilizing the selected technologies are identified and discussed. This included items like selling to third parties, wheeling, electrical interconnections, fuel supply, permitting, standby power, and transmission studies. (4) Energy Conservation--The myriad of federal, state and utility programs offered for low-income weatherization and utility bill payment assistance are identified, their qualification …

Chamber Orchestra performance at the UNT College of Music Winspear Performance Hall.

The extent to which finite element models of partially buried nuclear power plant structures may be used to compute seismic induced wall pressures is investigated in this paper. Stresses in three dimensional finite elements modeling the soil adjacent to the structure are used and stresses in these elements are used to evaluate wall pressures. Depths of burial of the structure varying from 1/4 to 1 times the height of the structure are considered. The SASSI computer code is used to perform the analyses. The wall pressures for the shallower depths of burial are found to depend on the inertial interaction loads, while the pressures for the deeper embedded structures are found to depend on kinematic interaction loads. The input ground motion for the study has a ZPA equal to 0.3 g. The maximum wall pressures are examined to determine whether non linear effects (separation of the wall and soil or slippage of the soil relative to the wall) are important. Non-linear effects are found to occur for depths of burial less than one half of the height and are found to occur over one half of the buried depth.

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

In December of 2004, upon hearing of the DOE decision to terminate this grant, a no-cost extension was requested to allow us to expend residual funds from the 2004 calendar year. These funds have been used to support MR-CAT staff as we transition to other funding. As of this writing, the funds have been expended. Over the past four years of DOE operations funding, MR-CAT has become one of the most productive sectors at the Advanced Photon Source. This report will list the overall accomplishments of the collaboration during the time of DOE funding.

The Yolo County Department of Planning and Public Works constructed a full-scale bioreactor landfill as a part of the Environmental Protection Agency's (EPA) Project XL program to develop innovative approaches for carbon sequestration and greenhouse emission control. The overall objective was to manage landfill solid waste for rapid waste decomposition and maximum landfill gas generation and capture for carbon sequestration and greenhouse emission control. Waste decomposition is accelerated by improving conditions for either the aerobic or anaerobic biological processes and involves circulating controlled quantities of liquid (leachate, groundwater, gray water, etc.), and, in the aerobic process, large volumes of air. The first phase of the project entailed the construction of a 12-acre module that contained a 6-acre anaerobic cell, a 3.5-acre anaerobic cell, and a 2.5-acre aerobic cell at the Yolo County Central Landfill near Davis, California. The cells were highly instrumented to monitor bioreactor performance. Liquid addition commenced in the 3.5-acre anaerobic cell and the 6-acre anaerobic cell. Construction of the 2.5-acre aerobic cell and biofilter has been completed. The current project status and preliminary monitoring results are summarized in this report.