Newsletter of Lee College discussing news, events, and other updates.

Annual report providing tabular statistical information about motor vehicle accidents that involved pedestrians in Texas during calendar year 1994, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Annual report providing tabular statistical information about motor vehicle accidents in Texas involving DWI (driving while impaired) during calendar year 1994, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Annual report providing tabular statistical information about motor vehicle accidents that involved trucks in Texas during calendar year 1994, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Annual report providing tabular statistical information about motor vehicle accidents that involved tractor trailers in Texas during calendar year 1994, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Annual report providing tabular statistical information about motor vehicle accidents that involved trains in Texas during calendar year 1994, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Annual report providing tabular statistical information about motor vehicle accidents that involved motorcycles in Texas during calendar year 1994, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Annual report providing tabular statistical information about motor vehicle accidents involving military drivers in Texas during 1994, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Annual report providing tabular statistical information about motor vehicle accidents in Texas during calendar year 1994, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Annual report providing tabular statistical information about motor vehicle accidents in rural areas of Texas during calendar year 1994, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Annual report providing tabular statistical information about motor vehicle accidents that involved motorcycles in Texas during calendar year 1994, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Annual report providing tabular statistical information about motor vehicle accidents that happened at railroad crossings in Texas during calendar year 1994, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Annual report providing tabular statistical information about motor vehicle accidents that involved pick-up trucks in Texas during calendar year 1994, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Annual report providing tabular statistical information about motor vehicle accidents that involved pedalcyclists in Texas during calendar year 1994, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Annual report providing tabular statistical information about motor vehicle accidents involving only one vehicle in Texas during 1994, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Annual report providing tabular statistical information about motor vehicle accidents that involved more than one vehicle in Texas during calendar year 1994, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

The Hanford Site, located in southeastern Washington State, is operated by the US Department of Energy (DOE) and its contractors. Starting in 1943, Hanford supported fabrication of reactor fuel elements, operation of production reactors, processing of irradiated fuel to separate and extract plutonium and uranium, and preparation of plutonium metal. Processes used to recover plutonium and uranium from irradiated fuel and to recover radionuclides from tank waste, plus miscellaneous sources resulted in the legacy of approximately 227,000 m{sup 3} (60 million gallons) of high-level radioactive waste, currently in storage. This waste is currently stored in 177 large underground storage tanks, 28 of which have two steel walls and are called double-shell tanks (DSTs) an 149 of which are called single-shell tanks (SSTs). Much of the high-heat-emitting nuclides (strontium-90 and cesium-137) has been extracted from the tank waste, converted to solid, and placed in capsules, most of which are stored onsite in water-filled basins. DOE established the Tank Waste Remediation System (TWRS) program in 1991. The TWRS program mission is to store, treat, immobilize and dispose, or prepare for disposal, the Hanford tank waste in an environmentally sound, safe, and cost-effective manner. Technology will need to be developed or improved to …

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This report talks about Coherent Bremsstrahlung at Relativistic Heavy Ion Colliders

The proposed piping layout for the DO upgrade will run along the south wall of DAB. The cryogenic service pipe runs above the upper and lower cleanroom roofs and will need to be supported by the roofs beams. Calculations were done to determine the stresses in the I-beams created by the existing and additional loads due to the upgrade. Refer to drawing no. 3823.115-ME-317283 for drawings of the piping layout. Figure 1 shows the 'plan view' portion of this drawing. The weight of the individual lines were calculated in figure 2 assuming a pipe density of O.28 lbm/in{sup 3} for stainless steel (0.12% C) and a fluid density (assuming LN2 at 1 atm) of 0.03 lbm/in{sup 3}. The weights of the corrugated steel flooring, assembly hall feed cans, support beams, and roof hatch were also included in the analysis. These loads are calculated on pgs. 5-6. A floor load of 50 lbf/ft{sup 2} was also added in order to maintain the existing floor load limit in addition to the added piping loads. Measurements of the dimensions of the I-beams determined that the nominal sizes of the beams were W8 x 21 for the lower roof and W14 x 26 for …

The design for the scaffolding platform which will be connected to the muon chamber wall was analyzed for a load rating of 400 lbs. The platform is supported on each end and the calculations were done for the full 400 lbs. on the end of the horizontal beam. Both members were analyzed for maximum stresses and were compared to the allowable stress, and both members were found to be acceptable in accordance with the ASCE and AISC specifications. The only recommendation is for all the 3/8-inch steel bolt to be of grade 5 or better. This is necessary to insure safety.

In this paper we describe the operation and testing of a string of magnets comprising a full cell of the Superconducting Super Collider (SSC). The full cell configuration composed of ten dipoles, two quadrupoles, and three spool pieces is the longest SSC magnet string ever tested. Although the tests of the full cell were undertaken after the SSC project was marked for termination, their completion was deemed necessary and useful to future efforts at other accelerator laboratories utilizing Superconducting magnets. The focus of this work is on the electrical and cryogenic performance of the string components and the quench protection system with an emphasis on solving some of the questions concerning electrical performance raised during the previous two experimental runs involving a half cell configuration.

The basement membrane (BM) extracellular matrix induces differentiation and suppresses apoptosis in mammary epithelial cells, whereas cells lacking BM lose their differentiated phenotype and undergo apoptosis. Addition of purified BM components, which are known to induce {beta}-casein expression, did not prevent apoptosis, indicating that a more complex BM was necessary. A comparison of culture conditions where apoptosis would or would not occur allowed us to relate inhibition of apoptosis to a complete withdrawal from the cell cycle, which was observed only when cells acquired a three-dimensional alveolar structure in response to BM. In the absence of this morphology, both the G1 cyclin kinase inhibitor p21/WAF-I and positive proliferative signals including c-myc and cyclin Dl were expressed and the retinoblastoma protein (Rb) continued to be hyperphosphorylated. When we overexpressed either c-myc in quiescent cells or p21 when cells were still cycling, apoptosis was induced. In the absence of three-dimensional alveolar structures, mammary epithelial cells secrete a number of factors including transforming growth factor a and tenascin, which when added exogenously to quiescent cells induced expression of c-myc and interleukin-{beta}1-converting enzyme (ICE) mRNA and led to apoptosis. These experiments demonstrate that a correct tissue architecture is crucial for long-range homeostasis, suppression of …

A comparison of the neutron and photon dose rates at different locations on the outside surface of the Model AL-RB, Model FL and the AT-400A containers for a given pit load has been done in order to understand the shielding characteristics of these containers. The Model AL-R8 is not certified for transport and is only used for storage of pits, while the Model FL is a certified Type B pit transportation container. The AT-400A is being developed as a type B pit storage and transportation container. The W48, W56 and B83 pits were chosen for this study because of their encompassing features with regard to other pits presently being stored. A detailed description of the geometry and materials of these containers and of the neutron and photon emission spectra from the actinide materials present in the pit have been used in the calculations of the total dose rates. The calculations have been done using the three-dimensional, neutron-photon Monte Carlo code MCNP. The results indicate the need for a containment vessel (CV), as is found in the Model FL and AT-400A containers, in order to assure compliance with 10 CFR 71 regulations. The absence of a CV in the AL-R8 container …