The adiabatic Born-Oppenheimer potential energy surface approximation is not valid for reaction of a wide variety of energetic materials and organic fuels; coupling between electronic states of reacting species plays a key role in determining the selectivity of the chemical reactions induced. This research program initially studies this coupling in (1) selective C-Br bond fission in 1,3- bromoiodopropane, (2) C-S:S-H bond fission branching in CH[sub 3]SH, and (3) competition between bond fission channels and H[sub 2] elimination in CH[sub 3]NH[sub 2].

The adiabatic Born-Oppenheimer potential energy surface approximation is not valid for reaction of a wide variety of energetic materials and organic fuels; coupling between electronic states of reacting species plays a key role in determining the selectivity of the chemical reactions induced. This research program initially studies this coupling in (1) selective C-Br bond fission in 1,3- bromoiodopropane, (2) C-S:S-H bond fission branching in CH{sub 3}SH, and (3) competition between bond fission channels and H{sub 2} elimination in CH{sub 3}NH{sub 2}.

Annual report providing tabular statistical information about motor vehicle accidents in rural areas of Texas during calendar year 1992, 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 1992, 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 1992, 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 1992, 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 1992, 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 1992, 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 1992, 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 1992, 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 pedestrians in Texas during calendar year 1992, 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 1992, 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 1992, 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 1992, 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 1992, 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 1992, 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 directly or indirectly involved school buses in Texas during calendar year 1992, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

The United States Transuranium and Uranium Registries are unique human tissue research programs studying the distribution, dose, and possible biological effects of the actinide elements in man, with the primary goal of assuring the adequacy of radiation protection standards for these radionuclides. The Registries research is based on radiochemical analysis of tissues collected at autopsy from voluntary donors who have documented occupational exposure to the actinides. To date, tissues, or in some cases radioanalytical results only, have been obtained from approximately 300 individuals; another 464 living individuals have volunteered to participate in the Registries research programs and have signed premortem informed consent and autopsy permissions. The Registries originated at the National Plutonium Registry which was started in 1968 as a then Atomic Energy Commission project under the aegis of a prime contractor at the Hanford site. In 1970, the name was changed to the United States Transuranium Registry to reflect a broader involvement with the higher actinides. In 1978, an administratively separate parallel registry, the United States Uranium Registry, was formed to carry out similar studies among uranium fuel cycle workers.

The United States Transuranium and Uranium Registries are unique human tissue research programs studying the distribution, dose, and possible biological effects of the actinide elements in man, with the primary goal of assuring the adequacy of radiation protection standards for these radionuclides. The Registries research is based on radiochemical analysis of tissues collected at autopsy from voluntary donors who have documented occupational exposure to the actinides. To date, tissues, or in some cases radioanalytical results only, have been obtained from approximately 300 individuals; another 464 living individuals have volunteered to participate in the Registries research programs and have signed premortem informed consent and autopsy permissions. The Registries originated at the National Plutonium Registry which was started in 1968 as a then Atomic Energy Commission project under the aegis of a prime contractor at the Hanford site. In 1970, the name was changed to the United States Transuranium Registry to reflect a broader involvement with the higher actinides. In 1978, an administratively separate parallel registry, the United States Uranium Registry, was formed to carry out similar studies among uranium fuel cycle workers.

This report evaluates the Sandia National Laboratory-Albuquerque analytical model that is used to support present wattage limit decisions for various matrix forms from the Residue Elimination Project for Waste Isolation Pilot Plant waste acceptability. This study includes (1) a comparison of the SNL-A model to Rocky Flats Plant models for consistency of assumptions and the phenomena considered in the models, and (2) an evaluation of the appropriateness of the Sandia National Laboratory-Albuquerque model to Rocky Flats Plant residues, considering that the original intent was to model wastes rather than residues. The study draws the following conclusions: (1) only real-time gas generation testing of specific waste streams may provide a sound basis for an increase in the transportation wattage limit of specific waste streams, and (2) the radiolytic gas generation rate from Residue Elimination Project waste emplaced at Waste Isolation Pilot Plant, under worst-case conditions, is not a significant factor in comparison to the total gas generation rate due to radiolysis, microbial degradation, and corrosion.

Many areas of global climate change research could benefit from a flexible, affordable, and near-term platform that could provide in situ measurements in the upper troposphere and lower stratosphere. To provide such a capability, the Perseus unmanned science research aircraft was proposed in 1989. As a first step toward the development of Perseus, a proof-of-concept (POC) demonstrator was constructed and tested during 1990 and 1991. The POC was a full scale Perseus airframe intended to validate the structural, aerodynamic, and flight control technologies for the Perseus within a total budget of about $1.5 million. Advanced propulsion systems needed for the operational Perseus were not covered in the POC program due to funding limitations. This report documents the design, development, and testing of the Perseus POC.

The Pittsburgh Energy Technology Center of the US Department of Energy (DOE) has contracted with Combustion Engineering, Inc. (ABB CE) to perform work on the Engineering Development of Advanced Coal-Fired Low-Emission Boiler Systems'' Project and has authorized ABB CE to complete Phase I on a cost-reimbursable basis. The overall objective of the Project is the expedited commercialization of advanced coal-fired low-emission boiler systems. The specified primary objectives are: NO[sub x] emissions not greater than one-third NSPS; SO[sub x] emissions not greater than one-third NSPS; and particulate emissions not greater than one-half NSPS. The specific secondary objectives are: Improved ash disposability and reduced waste generation; reduced air toxics emissions; increased generating efficiency. The final deliverables are a design data base that will allow future coal-fired power plants to meet the stated objectives and a preliminary design of a commercial generation unit.

The Pittsburgh Energy Technology Center of the US Department of Energy (DOE) has contracted with Combustion Engineering, Inc. (ABB CE) to perform work on the ``Engineering Development of Advanced Coal-Fired Low-Emission Boiler Systems`` Project and has authorized ABB CE to complete Phase I on a cost-reimbursable basis. The overall objective of the Project is the expedited commercialization of advanced coal-fired low-emission boiler systems. The specified primary objectives are: NO{sub x} emissions not greater than one-third NSPS; SO{sub x} emissions not greater than one-third NSPS; and particulate emissions not greater than one-half NSPS. The specific secondary objectives are: Improved ash disposability and reduced waste generation; reduced air toxics emissions; increased generating efficiency. The final deliverables are a design data base that will allow future coal-fired power plants to meet the stated objectives and a preliminary design of a commercial generation unit.

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