Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Oklahoma City police cruisers surround the Oklahoma City Jail on Monday while authorities look for a possible escapee, while another inmate gazes at the action below."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Baserunner Paul Howell of Jenks is safe at first as the ball gets away from Reynolds Lettering first baseman Dustin Waldrop during Monday's American Legion tournament in Edmond."

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Jenks #25 Spencer Swayze is safe at 2nd base - OKC #22 Gene Stanley dives toward the bag."

Photograph used for a newspaper owned by the Oklahoma Publishing Company.

Often the tasks of a parallel job compute sets of values that are reduced to a single value or gathered to build an aggregate structure. Since reductions may introduce dependencies, most languages separate computation and reduction. For example, Fortran 90 and HPF provide a rich set of predefined reduction functions but only for extant arrays. Sisal 1.2 is unique in that it supports seven reduction operations as a natural consequence of loop expressions. These reductions are limited and cannot express the variety of reduction operations found in parallel programs. In this paper, the authors present compilation techniques that recognize pairs of computation-reduction expressions in Sisal 1.2 and fuse them into single parallel loops. This optimization overlaps computation and reduction, reduces runtime overhead, and reduces storage requirements. They describe an implementation and they present performance numbers that demonstrate the utility of their techniques.

We report progress in an effort to develop and demonstrate a refuelable zinc/air battery for fleet electric vehicle applications. A refuelable module consisting of twelve bipolar cells with internal flow system has been refueled at rates of nearly 4 cells per minute refueling time of 10 minutes for a 15 kW, 55 kWh battery. The module is refueled by entrainment of 0.5-mm particles in rapidly flowing electrolyte, which delivers the particles into hoppers above each cell in a parallel-flow hydraulic circuit. The concept of user-recovery is presented as an alternative to centralized service infrastructure during market entry.

This is a note originally distributed in 1983. I am re-releasing it now, with a couple of words changed, so that it can be used for test problems, distributed more openly, and so forth. One could argue that it should be published, but I do not have time to reshape it into something I would regard as suitable for journal publication. A different derivation of the same result is being published in an appendix in D.W. Phillion and S.M. Pollaine, ``Dynamical Compensation of Irradiation Nonuniformities in a Spherical Hohlraum Illuminated with Tetrahedral Symmetry by Laser Beams,`` submitted to Phys. Plasmas.

This report describes conditions and costs at which quite small (100 to 1,000 kilowatt) geothermal systems could be used for off-grid powering at remote locations. This is a first step in a larger process of determining locations and conditions at which markets for such systems could be developed. The results suggest that small geothermal systems offer substantial economic and environmental advantages for powering off-grid towns and villages. Geothermal power is most likely to be economic if the system size is 300 kW or greater, down to reservoir temperatures of 100{degree}C. For system sizes smaller than 300 kW, the economics can be favorable if the reservoir temperature is about 120{degree}C or above. Important markets include sites remote from grids in many developing and developed countries. Estimates of geothermal resources in many developing countries are shown.

Photograph of Barbara Jordan receiving the Presidential Medal of Freedom from President Bill Clinton. Hillary Clinton is in the background.

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

The Waste Receiving and Processing (WRAP) Facility is being designed for construction in the north end of the Central Waste Complex. The WRAP Facility will receive, store, and process radioactive solid waste of both transuranic (TRU) and mixed waste (mixed radioactive-chemical waste) categories. Most of the waste is in 208-L (55-gal) steel drums. Other containers such as wood and steel boxes, and various sized drums will also be processed in the facility. The largest volume of waste and the type addressed in this report is TRU in 208-L (55-gal) drums that is scheduled to be processed in the Waste Receiving and Processing Facility Module 1 (WRAP 1). Half of the TRU waste processed by WRAP 1 is expected to be retrieved stored waste and the other half newly generated waste. Both the stored and new waste will be processed to certify it for permanent storage in the Waste Isolation Pilot Plant (WIPP) or disposal. The stored waste will go through a process of retrieval, examination, analysis, segregation, repackaging, relabeling, and documentation before certification and WIPP shipment. Newly generated waste should be much easier to process and certify. However, a substantial number of drums of both retrievable and newly generated waste …

The use of reflectance Fourier transform infrared (FTIR) spectroscopy as a tool for surface inspection is described. Laboratory instruments and portable instruments can support remote sensing probes that can map chemical contaminants on surfaces. Detection limits under the best of conditions are in the subnanometer range (i.e., near absolute cleanliness), excellent performance is obtained in the submicrometer range, and useful performance may exist for films tens of microns thick. Identifying and quantifying contamination such as mineral oils and greases, vegetable oils, and silicone oils on aluminum foil, galvanized sheet steel, smooth aluminum tubing, and gritblasted 7075 aluminum alloy and D6AC steel are described. The ability to map in time and space the distribution of oil stains on metals is demonstrated. Techniques for quantitatively applying oils to metals, subsequently verifying the application, and nonlinear relationships between reflectance and the quantity of oil are discussed.

Neutron diffraction measurements have revealed that BaCuO{sub 2+x} orders antiferromagnetically below T{sub N} = (15.0 {+-} 0.5) with a magnetic propagating vector {kappa} = [1 1 1]. The Cu atoms in the Cu{sub 6} ring clusters, located at the (1/4, 1/4, 1/4) positions, order ferromagnetically within these clusters while the clusters themselves order antiferromagnetically. The ordered magnetic moment of each of these Cu atoms is (0.89 {+-} 0.05){mu}{sub B} at T=4.2K. No evidence of long-range magnetic ordering of the Cu atoms in the Cu{sub 18} clusters, located at the (O, O, O) and (1/2, 1/2, 1/2) positions, was found down to a temperature T=2.5K.

We have studied the properties of Z boson events produced in 1.8 TeV p{bar p} collisions using 19.3 pb{sup {minus}1} of integrated luminosity collected by the Collider Detector at Fermilab (CDF) during the 1992--1993 Tevatron run. We compare the characteristics of the hadronic jets associated with the Z to leading-order QCD calculations using the VECBOS Monte Carlo program. For a subsample of events, we identify B jets and compare their rates to those expected from events with generic QCD jets.

This paper describes a model of drilling by high radiance pulsed lasers. The model contains a one-dimensional description of heat transport below the bottom of the hole, hydrodynamic expansion of the vapor and compressed air, and light propagation through the vapor. The pressure and energy of the vapor are taken from a separate Saha equilibrium code. The boundary conditions at the vaporization surface include the formation of a Knudsen layer within which macroscopic fluid conditions are reached. The absorption mechanisms in the pertinent range of densities and temperatures are photoionization and inverse bremsstrahlung. The model has been applied to the case of drilling in stainless steel with green copper laser light, for peak input intensities ranging from 10{sup 8} to 5 {times} 10{sup 10} W/cm{sup 2}. Below 3 {times} 10{sup 8} W/cm{sup 2}, their is negligible absorption in the vapor and ablation increases rapidly with intensity. Above this point, ablation still generally increases with intensity, because of a combination of partially penetrating light and electron thermal conduction to the surface. The predicted ablation rates agree semiquantitatively with experiment.

The Advanced Telecommunications Program at Lawrence Livermore National Laboratory, in collaboration with Pacific Bell, is developing an experimental high speed, four wavelength, protocol independent optical link for evaluating wide area networking interconnection schemes and the use of fiber amplifiers. Lawrence Livermore National Laboratory, as a super-user, supercomputer, and super-application site, is anticipating the future bandwidth and protocol requirements to connect to other such sites as well as to connect to remote sited control centers and experiments. In this paper we discuss our vision of the future of Wide Area Networking and describe the plans for the wavelength division multiplexed link between Livermore and the University of California at Berkeley.

The physics approaches to improved, steady-state tokamak reactors, as evolved through reactor design studies, ideas based on experimental results, and better theoretical understanding, are the foundation for the mission and physics design of the Tokamak Physics Experiment (TPX). The mission of TPX is to develop the scientific basis for cost-competitive, continuously operating tokamak power plants. We report here the design status of TPX, a device optimized to achieve improved performance through strong plasma shaping, recycling control, and current profile shaping, while operating continuously. The design incorporates poloidal field flexibility for a wide range of operation in normalized beta and internal inductance, a double-null ``Vee`` divertor configuration for power and particle control, internal and external n {ne} 0 coils, as well as passive stabilizers, for control of MHD activity, and remote maintenance for continuous high-power operation in deuterium. Having superconducting poloidal and toroidal coils, the TPX device itself is capable of continuous operation, although initially auxiliary equipment limits the pulse length to 1000 sec.

Vector field rendering is difficult in 3D because the vector icons overlap and hide each other. We propose four different techniques for visualizing vector fields only near surfaces. The first uses motion blurred particles in a thickened region around the surface. The second uses a voxel grid to contain integral curves of the vector field. The third uses many antialiased lines through the surface, and the fourth uses hairs sprouting from the surface and then bending in the direction of the vector field. All the methods use the graphics pipeline, allowing real time rotation and interaction, and the first two methods can animate the texture to move in the flow determined by the velocity field.

A letter to The Dallas Morning News editors from John Thomas about how the Dallas Independent School District handled discussing the LGBTQIA+ community.

Photograph of Jerry Hill and his Diamond T truck stopped off Route 66.

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

Video footage of Fry Street and an interview with Dr. Suzanne LaBrecque about admissions and student expectations at the University of North Texas.