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

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Semiweekly newspaper from Carthage, Texas that includes local, state, and national news along with advertising.

Semiweekly newspaper from Levelland, Texas that includes local, state, and national news along with advertising.

A document listing the upcoming programs at UNT hosted by the Division of Equity and Diversity. Pictures of the presenters are around the border and there is information at the bottom.

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

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Memo from Darla Thompson to Gary Borders, Jeremy Halbreich and Donnis Bagget on August 10, 2005 with the subject July 28, 2005 Board Action. The memo from Thompson requests that Borders signed an enclosed document so that the trustee of the TDNA retirement plan can be officially changed from Philip Berkebile to Ken Whalen, Thompson also requests that Halbreich and Baggett sign the form as well.

Semi-weekly newspaper from Seminole, Texas that includes local, state, and national news along with extensive advertising.

Lawrence Livermore National Laboratory (LLNL) has developed an improved method for fabrication of a thin film Solid Oxide Fuel Cell (SOFC) using a colloidal technique. Dense, crack-free, yttria-stabilized-zirconia (YSZ) films of up to 100 microns thick were deposited on nickel oxide/YSZ substrates and porous La{sub 0.85}Sr{sub 0.15}MnO{sub 3} (LSM) substrates. The new technique was also used to deposit a compositionally-graded film of YSZ and Ce{sub 0.8}Y{sub 0.2}O{sub 2} (CYO), which is useful for matching the thermal expansion coefficient to an adjacent layer. The SOFC is a solid-state electrochemical device that converts the chemical energy of fuel directly into electricity. Its efficiency and low emission positions SOFC on the short list of power generation technologies for the 21st century. However, commercialization efforts are hampered in part by the high cost of fabrication. One area of high cost is the fabrication of thin, defect free coatings. It is desirable to produce coatings that are in the range of 10-40 microns to minimize resistance yet maintain mechanical integrity. Deposition of films thicker than 10 microns in a single step using conventional techniques such as dip coating, spin coating, slurry painting or electrophoretic deposition generally results in cracking due to shrinkage when the solvent …

Microarrays of single macrophage cell based sensors weredeveloped and demonstrated for real time bacterium detection bysynchrotron FTIR microscopy. The cells were patterned on gold-SiO2substrates via a surface engineering technique by which the goldelectrodes were immobilized with fibronectin to mediate cell adhesion andthe silicon oxide background were passivated with PEG to resist proteinadsorption and cell adhesion. Cellular morphology and IR spectra ofsingle, double, and triple cells on gold electrodes exposed tolipopolysaccharide (LPS) of different concentrations were compared toreveal the detection capabilities of these biosensors. The single-cellbased sensors were found to generate the most significant IR wave numbervariation and thus provide the highest detection sensitivity. Changes inmorphology and IR spectrum for single cells exposed to LPS were found tobe time- and concentration-dependent and correlated with each other verywell. FTIR spectra from single cell arrays of gold electrodes withsurface area of 25 mu-m2, 100 mu-m2, and 400 mu-m2 were acquired usingboth synchrotron and conventional FTIR spectromicroscopes to study thesensitivity of detection. The results indicated that the developedsingle-cell platform can be used with conventional FTIRspectromicroscopy. This technique provides real-time, label-free, andrapid bacterial detection, and may allow for statistic and highthroughput analyses, and portability.

Bambino is a charge-particle detector system with the capability to provide a sufficient energy and position resolution for recoiling nuclei with Z {le} 20 for the Doppler-shift corrections necessary to maintain the {gamma}-ray resolution in TIGRESS. It consists of two annular silicon detectors having an active inner diameter of 22 mm and outer diameter of 70 mm and a thickness of 140 {micro}m. They will be placed 3 cm from the target and provide solid-angle coverage of 1.15{pi} sr. It has 24 sectors in {theta} each for the angle coverage between from 20.1{sup o} to 49.4{sup o} and from 130.6{sup o} to 159.9{sup o} and 16 sectors in {phi} for 360{sup o} coverage. Three of those detectors have been ordered from Micron Semiconductor Ltd. and two were received so far. A split spherical target chamber will be built in Rochester to accommodate this detector system. The detector signals will travel through the custom-designed vacuum feedthrough and conversion board before reaching the preamplifier. The custom-made preamplifier has 8 channels in each unit with a gain of 10 mV/MeV. Ten of these have been ordered from Swan Research. They will be mechanically mounted on both the entrance and exit beam pipes to …

We are developing high-resolution cryogenic gamma-ray spectrometers for nuclear science and non-proliferation applications. The gamma-ray detectors are composed of a bulk superconducting Sn foil absorber attached to multilayer Mo/Cu transition-edge sensors (TES). The energy resolution achieved with a 1 x 1 x 0.25 mm{sup 3} Sn absorber is 50 -90eV for {gamma}-rays up to 100 keV and it decreases for large absorber sizes. We discuss the trade-offs between energy resolution and dynamic range, as well as development of TES arrays for higher count rates and better sensitivity.

This paper expands on prior Berkeley Lab work on integrated simulation of building energy systems by the addition of active solar thermal collecting devices, technology options not previously considered (Siddiqui et al 2005). Collectors can be used as an alternative or additional source of hot water to heat recovery from reciprocating engines or microturbines. An example study is presented that evaluates the operation of solar assisted cooling at a large mail sorting facility in southern California with negligible heat loads and year-round cooling loads. Under current conditions solar thermal energy collection proves an unattractive option, but is a viable carbon emission control strategy.

We present a multimode X-band rf pulse compression system suitable for a TeV-scale electron-positron linear collider such as the Next Linear Collider (NLC). The NLC main linac operating frequency is 11.424 GHz. A single NLC rf unit is required to produce 400 ns pulses with 475 MW of peak power. Each rf unit should power approximately 5 m of accelerator structures. The rf unit design consists of two 75 MW klystrons and a dual-moded resonant-delay-line pulse compression system that produces a flat output pulse. The pulse compression system components are all overmoded, and most components are designed to operate with two modes. This approach allows high-power-handling capability while maintaining a compact, inexpensive system. We detail the design of this system and present experimental cold test results. We describe the design and performance of various components. The high-power testing of the system is verified using four 50 MW solenoid-focused klystrons run off a common 400 kV solid-state modulator. The system has produced 400 ns rf pulses of greater than 500 MW. We present the layout of our system, which includes a dual-moded transmission waveguide system and a dual-moded resonant line (SLED-II) pulse compression system. We also present data on the processing …

A well defined 4D distribution that describes the transverse spatial coordinates (x,y) and momenta (x',y') of the particles that make up an intense ion beam is of great value to theorists in the field of particle beam physics. If such a distribution truthfully captures the characteristic of the actual beam, it can be used to initialize an extensive simulation, and can yield insight into the processes that affect beam quality. Creating a proper representative distribution of particles is a challenge because the problem is, in general, quite underdetermined. Data is collected through a pair of ''optical slit'' diagnostics which provide two 3D distributions, f(x,y,x') and f(x,y,y'); the challenge is to coalesce these into a full 4D distribution f(x,y,x',y'). Further difficulties are introduced because the data is collected at different longitudinal planes and must be ''remapped'' to a common plane, taking into account the convergence or divergence of the beam as well as any off-centering. This challenge was met by developing a suitable algorithm and implementing it as a ''plug-in'' for the popular scientific image analysis program ImageJ, written entirely in the Java programming language. The algorithm accomplishes the desired remapping and synthesizes a 4D particle distribution, using Monte-Carlo techniques. Preliminary …

A Membrane Inlet Mass Spectrometer (MIMS) is used to measure dissolved gas concentrations in environmental water samples. Gases are exsolved out of water by passing the sample through a silicone gas permeable membrane that is under vacuum. A quadrupole mass spectrometer attached to the vacuum system is capable of measuring a variety of gases over a wide range of concentration. The MIMS is a versatile and field portable instrument.