Bi-monthly report on average prices paid for standing timber in Texas, calculated based on reported timber sales.

Monthly bulletin issued to address topics related to law enforcement. This issue discusses "Interpreting Racial Profiling Data" including information about previous efforts, what racial profiling is, and problems with traffic stop data.

Monthly publication documenting statistics related to economic information in the Mexico-Texas border areas including types of border crossings, employment, customs revenues, and other related data.

Newsletter of the Texas Hunter Education Program discussing various events, news, and other information related to the program or of interest to hunters in Texas.

Magazine for Texas Lottery retailers that contains news, retailer spotlights, and a list of lottery winners.

Magazine discussing natural resources, parks, hunting and fishing, and other information related to the outdoors in Texas.

Newsletter of the Gulf Coast Waste Disposal Authority discussing news and updates related to the organization's meetings and activities, changes to regulations, and other relevant information.

Quarterly newsletter of the general manage at the Edwards Aquifer Authority discussing news and activities of the organization as well as other information related to water in southern Texas.

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The objective of this report is to improve geophysical imaging of the vadose zone by developing improved methods for interpreting geophysical field data. The purpose of this EMSP project is to develop relationships between laboratory measured geophysical properties and porosity, saturation, soil composition, and fluid distribution, for partially saturated soils. Algorithms for relationships between soil composition, fluids, and geophysical measurements can provide new methods to interpret geophysical field data collected in the vadose zone at sites such as Hanford, WA.

This newsletter is prepared for the NARUC Renewable and Distributed Resources Subcommittee to promote information sharing on state-level renewable electric activities. It is sponsored by the Office of Power Technologies of the U.S. Department of Energy.

Temperature measurement is one of the grand challenges still facing experimental shock physics. A shock experiment fundamentally measures E({sigma}{sub x}, {var_epsilon}{sub 11}) which is an incomplete equation of state since temperature (or entropy) remains unspecified. Ideally, one would like to experimentally determine a free energy F(T, {var_epsilon}{sub ij}) from which all other thermo-mechanical properties might be derived. In practice, temperature measurement would allow direct comparison with theory/simulation since T and {var_epsilon}{sub 11} are in most theories the underlying variables. Temperature is a sensitive measure of energy partitioning, knowledge of which would increase our understanding phase boundaries and thermally activated processes (such as chemical reactivity (including dissociation and ionization)). Temperature measurement would also allow a thermodynamically consistent coupling of hydrodynamic equations of state to the material's constitutive (deformation) behavior. The measurement of the temperature of a material that has undergone severe strains at small time-scales is extremely difficult, and we are developing a method using infrared reflectance and pyrometry. The emitted power from a warm surface is measured over a range of wavelengths using a multi-channel IR detector with a response time of {approx}0.1 {micro}s. Each channel of the detector passes the radiation from a selected wavelength interval into a detector. …

Laser induced damage initiation on fused silica optics can limit the lifetime of the components when used in high power UV laser environments. Foe example in inertial confinement fusion research applications, the optics can be exposed to temporal laser pulses of about 3-nsec with average fluences of 8 J/cm{sup 2} and peak fluences between 12 and 15 J/cm{sup 2}. During the past year, we have focused on optimizing the damage performance at a wavelength of 355-nm (3{omega}), 3-nsec pulse length, for optics in this category by examining a variety of finishing technologies with a challenge to improve the laser damage initiation density by at least two orders of magnitude. In this paper, we describe recent advances in improving the 3{omega} damage initiation performance of laboratory-scale zirconium oxide and cerium oxide conventionally finished fused silica optics via application of processes incorporating magnetorheological finishing (MRF), wet chemical etching, and UV laser conditioning. Details of the advanced finishing procedures are described and comparisons are made between the procedures based upon large area 3{omega} damage performance, polishing layer contamination, and optical subsurface damage.

The corrosion resistance of Alloy 22 (UNS No.: N06022) was studied in simulated ground water of different pH values and ionic contents at various temperatures. Potentiodynamic polarization techniques were used to study the electrochemical behavior and measure the critical potentials in the various systems. Alloy 22 was found to be resistant to localized corrosion in the simulated ground waters tested.

CDIC will provide state-of-the-art computational and computer science for the Laboratory and for the broader DOE and scientific community. We achieve this goal by performing advanced scientific computing research in the Laboratory's mission areas of High Energy and Nuclear Physics, Biological and Environmental Research, and Basic Energy Sciences. We also assist other groups at the Laboratory to reach new levels of achievement in computing. We are ''data intensive'' because the production and manipulation of large quantities of data are hallmarks of scientific research in the 21st century and are intrinsic features of major programs at Brookhaven. An integral part of our activity to accomplish this mission will be a close collaboration with the University at Stony Brook.

In the first section of this paper we present an overview of general set of procedures that we have followed in seismic waveform analysis. In the second section we discuss a number of issues and complexities that we have encountered in analysis of events in the Middle East, North Africa, Europe, and parts of the European Arctic. To illustrate these complexities we can include examples of waveforms recorded over a variety of paths in these regions.

The use of sprayed flammable fluids as solvents in dissolution and cleaning processes demand detailed understanding of ignition and fire hazards associated with these applications. When it is not feasible to inert the atmosphere in which the spraying process takes place, then elimination of all possible ignition sources must be done. If operators are involved in the process, the potential for human static build-up and ultimate discharge is finite, and it is nearly impossible to eliminate. The specific application discussed in this paper involved the use of heated Dimethyl Sulfoxide (DMSO) to dissolve high explosives (HE). Search for properties of DMSO yielded data on flammability limits and flash point, but there was no published information pertaining to the minimum energy for electrical arc ignition. Due to the sensitivity of this procedure, The Hazards Control Department of Lawrence Livermore National Laboratory (LLNL) was tasked to determine the minimum ignition energy of DMSO aerosol and vapor an experimental investigation was thus initiated. Because there were no electrical sources in spray chamber, Human Electro-Static Discharge (HESD) was the only potential ignition source. Consequently, the electrostatic generators required for this investigation were designed to produce electrostatic arcs with the defined voltage and current pulse …

An important purpose of a programming language is to insulate the programmer from low level details and provide a high enough level of abstraction to be productive and develop reasonably portable application codes. For these reasons scientific programming is longer done using assembly language. But high performance of scientific applications often requires that critical sections of code be expressed at a particularly low level to avoid inefficiencies introduced by the comiler (function call overhead, poor cache use, etc.). The use of high-level abstractions exaserbates this problem since the compiler is often unable to generate the equivalent low-level code required for good performance. The result is often significantly degraded performance. Libraries provide a way for domain specific knowledge to be developed for large numbers of users. Libraries thus simplify the development of many application codes and the work spent building libraries can be amortized across large numbers of applications and application developers. Such a hierarchy puts languages and compilers at the root of tree of abstractsions developed within numerous libraries at one level and numerous applications at a second level. Libraries provide a way to define high-level abstractions. We have developed specific libraries to simplify the development of serial and parallel …

When the field of modern publishing was on a collision course with telecommunications, publishing organizations had to come up to speed in fields that were, heretofore, completely foreign and technologically forbidding to them. For generations, the technology of publishing centered on offset lithography, typesetting, and photography--fields that saw evolutionary and incremental change from the time of Guttenberg. But publishing now includes making information available over the World Wide Web--Internet publishing--with its ever-accelerating rate of technological change and dependence on computers and networks. Clearly, we need a methodology to help anyone in the field of Internet publishing plan for the future, and there is a well-known, well-tested technique for just this purpose--Scenario Planning. Scenario Planning is an excellent tool to help organizations make better decisions in the present based on what they identify as possible and plausible scenarios of the future. Never was decision making more difficult or more crucial than during the years of this study, 1996-1999. This thesis takes the position that, by applying Scenario Planning, the Technical Information Department at LLNL, a large government laboratory (and organizations similar to it), could be confident that moving into the telecommunications business of Internet publishing stood a very good chance of …

The Pu oxalate process is used to remove {sup 234}U from aged {sup 238}Pu-enriched PuO{sub 2} ({sup 234}U grows into the PuO{sub 2} material with time from a-decay of {sup 238}Pu). The Pu oxalate process was first used on a mixture of weapons grade PuO{sub 2} with UO{sub 2} to work out the processing parameters. It was then applied to aged {sup 238}Pu-enriched PuO{sub 2} ({sup 238}PuO{sub 2}). The {sup 234}U content of the {sup 238}PuO{sub 2} was reduced from 13.2 wt% to 0.0254 wt%, and the Pu recovery yield was 78.5%. The process is complex and is complicated by radiolysis problems when working with {sup 238}Pu. Details of the experiments are described.

A gap-free, world-wide, ocean-, atmosphere-, and land surface-spanning geophysical data-set of three decades time-duration containing the full set of geophysical parameters characterizing global weather is the scientific perquisite for defining the climate; the generally-accepted definition in the meteorological community is that climate is the 30-year running-average of weather. Until such a tridecadal climate base line exists, climate change discussions inevitably will have a semi-speculative, vs. a purely scientific, character, as the baseline against which changes are referenced will be at least somewhat uncertain. The contemporary technology base provides ways-and-means for commencing the development of such a meteorological measurement-intensive climate baseline, moreover with a program budget far less than the {approx}$2.5 B/year which the US. currently spends on ''global change'' studies. In particular, the recent advent of satellite-based global telephony enables real-time control of, and data-return from, instrument packages of very modest scale, and Silicon Revolution-based sensor, data-processing and -storage advances permit 'intelligent' data-gathering payloads to be created with 10 gram-scale mass budgets. A geophysical measurement system implemented in such modern technology is a populous constellation 03 long-lived, highly-miniaturized robotic weather stations deployed throughout the weather-generating portions of the Earths atmosphere, throughout its oceans and across its land surfaces. Leveraging the …

This manuscript is meant to give a short summary of the advantages of high order schemes and suitable test problems which can properly illustrate these advantages.

This document describes I/O focused requirements, issues, options, plans, deliverables and budgets for Livermore Computing (LC) in FY02. Areas covered include I/O for archival storage, network, platform, visualization and the I/O Testbed. Implementation Plan (IP) milestones and tasks in each of these areas map to the efforts and plans described in this document. When developing FY02 I/O requirements, a survey of key LC customers was performed (see Appendix A and D) and DisCom2 requirements were gathered. The LC customer provided throughput and capacity estimates were quite conservative when compared to ASCI curve projections and were history-based rather than being based on hardware capabilities. Because substantial differences exist in the ASCI platform in FY02, required I/O throughput rates were raised appropriately (i.e., by over 200% platform-to-archive). Archive capacity requirements remain fairly stable in FY02 as aggressive FY01 plans and purchases will accommodate most of the volume of data received through FY02. 10 Gigabit Ethernet network infrastructure will begin to get deployed in early FY02. When full implementation becomes cost effective it will allow us to greatly increase bandwidth between computer facilities. In addition pre-production OC-48 Ultrafastlane encryptors will be installed in early FY02 at each of the Tri-Labs. Preliminary testing of …