Vitrification is currently the most widely used technology for the treatment of high level radioactive wastes (HLW) throughout the world. Most of the nations that have generated HLW are immobilizing in either borosilicate glass or phosphate glass. One of the primary reasons that glass has become the most widely used immobilization media is the relative simplicity of the vitrification process, e.g. melt waste plus glass forming frit additives and cast. A second reason that glass has become widely used for HLW is that the short range order (SRO) and medium range order (MRO) found in glass atomistically bonds the radionuclides and governs the melt properties such as viscosity, resistivity, sulphate solubility. The molecular structure of glass controls contaminant/radionuclide release by establishing the distribution of ion exchange sites, hydrolysis sites, and the access of water to those sites. The molecular structure is flexible and hence accounts for the flexibility of glass formulations to waste variability. Nuclear waste glasses melt between 1050-1150 C which minimizes the volatility of radioactive components such as Tc{sup 99}, Cs{sup 137}, and I{sup 129}. Nuclear waste glasses have good long term stability including irradiation resistance. Process control models based on the molecular structure of glass have been …

Interview with Billie Joyce Towles, longtime resident of Weatherford, Texas, as part of the Weatherford Oral History Project. The interview includes Towles' personal experiences of childhood and education in Weatherford, Depression-era struggles, and living in Weatherford during World War II. Towles also discusses her father's work with the Works Progress Administration, marriage to Norman Towles, her family's switch from Democratic loyalty to Republican, her personal evolution on race issues, and religious devotion.

Report on the strategic plan for the Texas Commission on the Arts describing the organization's planned services, activities, and other goals during fiscal years 2011 to 2015.

Report submitted by the University of North Texas to the Texas 81st regular legislature requesting appropriations to fund university programming and activities. It includes an overview of the university's goals, summaries of appropriations requests for fiscal years 2012 and 2013, and supporting documentation.

Report submitted by the University of North Texas to the Texas 81st regular legislature requesting appropriations to fund university programming and activities. It includes an overview of the university's goals, summaries of appropriations requests for fiscal years 2012 and 2013, and supporting documentation.