2 resultados para 50 years of television
em Digital Commons at Florida International University
Resumo:
The purpose of the study was to provide a historical record of the Bureau of Jewish Education/Central Agency for Jewish Education and its role in Jewish education in Miami since its inception in 1944 as well as to provide a sociological context within which to view the growth and development of the community. During the past 50 years of the Agency's existence, Dade County's Jewish population has undergone many changes including a huge population increase in the 1960s and 1970s and then a decrease in the 1980s and 1990s, and a shift from postwar business class of store owners to turn of the century professional class.^ The methodology used in this study was threefold. First, document analysis of formal and informal documents dating from 1944 to the present was conducted. Second, personal interviews were conducted with the Executive Directors of the B.J.E./C.A.J.E., long-time B.J.E./C.A.J.E. staff, present staff, Greater Miami Jewish Federation leaders, and lay leadership of C.A.J.E. Third, national trends in Jewish education were cited as a basis for the comparison and contrast of the achievements of C.A.J.E.^ The historiography concluded that the Agency had come full circle in its programs. Analysis of the services provided to religious and day schools, early childhood education, the High Schools, teacher services, adult education, and the library indicated that in some areas C.A.J.E. was an innovator, in other areas it followed national trends, and in others it was deficient. Recommendations included a reeducative process for the community with Jewish education made top priority, more visibility and publicity for the work of C.A.J.E. that would enhance its prestige and improve support, and holistic planning of programs for the future. ^
Resumo:
Hazardous radioactive liquid waste is the legacy of more than 50 years of plutonium production associated with the United States' nuclear weapons program. It is estimated that more than 245,000 tons of nitrate wastes are stored at facilities such as the single-shell tanks (SST) at the Hanford Site in the state of Washington, and the Melton Valley storage tanks at Oak Ridge National Laboratory (ORNL) in Tennessee. In order to develop an innovative, new technology for the destruction and immobilization of nitrate-based radioactive liquid waste, the United State Department of Energy (DOE) initiated the research project which resulted in the technology known as the Nitrate to Ammonia and Ceramic (NAC) process. However, inasmuch as the nitrate anion is highly mobile and difficult to immobilize, especially in relatively porous cement-based grout which has been used to date as a method for the immobilization of liquid waste, it presents a major obstacle to environmental clean-up initiatives. Thus, in an effort to contribute to the existing body of knowledge and enhance the efficacy of the NAC process, this research involved the experimental measurement of the rheological and heat transfer behaviors of the NAC product slurry and the determination of the optimal operating parameters for the continuous NAC chemical reaction process. Test results indicate that the NAC product slurry exhibits a typical non-Newtonian flow behavior. Correlation equations for the slurry's rheological properties and heat transfer rate in a pipe flow have been developed; these should prove valuable in the design of a full-scale NAC processing plant. The 20-percent slurry exhibited a typical dilatant (shear thickening) behavior and was in the turbulent flow regime due to its lower viscosity. The 40-percent slurry exhibited a typical pseudoplastic (shear thinning) behavior and remained in the laminar flow regime throughout its experimental range. The reactions were found to be more efficient in the lower temperature range investigated. With respect to leachability, the experimental final NAC ceramic waste form is comparable to the final product of vitrification, the technology chosen by DOE to treat these wastes. As the NAC process has the potential of reducing the volume of nitrate-based radioactive liquid waste by as much as 70 percent, it not only promises to enhance environmental remediation efforts but also effect substantial cost savings. ^