Calculations performed as part of this study indicate that injection of treated groundwater containing treated regenerant solution has a high potential for precipitate formation that could lead to plugging of formation porosity surrounding the injection well. In the worst case scenario, substantial plugging could occur within a year of the initiation of injection. Some uncertainty is associated with respect to this conclusion. The uncertainty results from the fact that equilibrium with the most stable mineral assemblage cannot always be assumed and that slow precipitation rates could occur and reliable estimates of precipitation kinetics under Hanford aquifer conditions are not available. It is recommended that the potential of calcium phosphate precipitation be investigated further using a combination of laboratory and field investigations.

The U.S. is the largest producer of mining products in the world. In 2003, U.S. mining operations produced $57 billion worth of raw materials that contributed a total of $564 billion to the nation's wealth. Despite these contributions, the mining industry has not been well supported with research and development funds as compared to mining industries in other countries. To overcome this problem, the Center for Advanced Separation Technologies (CAST) was established to develop technologies that can be used by the U.S. mining industry to create new products, reduce production costs, and meet environmental regulations. Originally set up by Virginia Tech and West Virginia University, this endeavor has been expanded into a seven-university consortium -- Virginia Tech, West Virginia University, University of Kentucky, University of Utah, Montana Tech, New Mexico Tech and University of Nevada, Reno - that is supported through U.S. DOE Cooperative Agreement No. DE-FC26-02NT41607: Crosscutting Technology Development at the Center for Advanced Separation Technologies. Much of the research to be conducted with Cooperative Agreement funds will be longer-term, high-risk, basic research and will be carried out in five broad areas: (1) Solid-solid separation; (2) Solid-liquid separation; (3) Chemical/biological extraction; (4) Modeling and control; and (5) Environmental control. …

Uranium-series data for groundwater samples from the Nopal I uranium ore deposit were obtained to place constraints on radionuclide transport and hydrologic processes for a nuclear waste repository located in fractured, unsaturated volcanic tuff. Decreasing uranium concentrations for wells drilled in 2003 are consistent with a simple physical mixing model that indicates that groundwater velocities are low ({approx}10 m/y). Uranium isotopic constraints, well productivities, and radon systematics also suggest limited groundwater mixing and slow flow in the saturated zone. Uranium isotopic systematics for seepage water collected in the mine adit show a spatial dependence which is consistent with longer water-rock interaction times and higher uranium dissolution inputs at the front adit where the deposit is located. Uranium-series disequilibria measurements for mostly unsaturated zone samples indicate that {sup 230}Th/{sup 238}U activity ratios range from 0.005-0.48 and {sup 226}Ra/{sup 238}U activity ratios range from 0.006-113. {sup 239}Pu/{sup 238}U mass ratios for the saturated zone are <2 x 10{sup -14}, and Pu mobility in the saturated zone is >1000 times lower than the U mobility. Saturated zone mobility decreases in the order {sup 238}U{approx}{sup 226}Ra > {sup 230}Th{approx}{sup 239}Pu. Radium and thorium appear to have higher mobility in the unsaturated zone based on …

Monthly magazine published by the Maverick Region of the Porsche Club of America containing stories related to the organization or of interest to the group's members including news, upcoming and past events, other feature articles, and classified advertisements.

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

Monthly travel magazine discussing locations and events in Texas to encourage travel within the state.

This presentation presents information about The Portal to Texas History, a digital gateway to cultural heritage collections in Texas. This presentation discusses the IOGENE project, the research processes involved in developing The Portal to Texas History, the research with genealogists, and shows illustrations of the contents of The Portal to Texas History.

Weekly student newspaper from Tarleton State University in Stephenville, Texas that includes local, state and campus news along with advertising.

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

Daily student newspaper from the University of North Texas in Denton, Texas that includes local, state and campus news along with advertising.

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

In Roseborough, Jane Roberts Wood returns with a keenly observed tale of bighearted people in small-town Texas. Three weeks after Mary Lou’s Gypsy husband dies, her fourteen-year-old daughter, Echo, runs away. Numbed by grief and grounded only by her job at the Dairy Queen, she impulsively signs up for Anne Hamilton’s single-parenting class at the nearby community college. Anne, complex and passionate, has avoided the risks that come with commitment. Knowing nothing of the stages of grief or the process of recovery, Mary Lou begins a sometimes comic, yet poignant, journey to find Echo. Compelled by Mary Lou’s story and her strange daughter, Anne begins her own journey that can ultimately set her free.

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

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

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

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

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

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

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

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

Bimonthly magazine containing news and information that pertains to Emergency Medical Service (EMS) providers. "The magazine's goals are to help organizations function professionally as EMS providers, to educate individuals so they can perform lifesaving prehospital skills under stressful conditions, and to help the public get into the EMS system when they need it" (p. 4).

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

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

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