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New accelerator produced radiopharmaceuticals

Description: From 11th international annual Meeting of the German Society of Nuclear Medicine; Athens, Greece (24 8ep 1973). The use of multi-purpose, high-current linear accelerators in the production of radionuclides for the development of new radiopharmaceuticals is discussed. A listing of pertinent information regarding the method of production, rate of production, expected yields, and potential application for /sup 123/I, /sup 52/Fe, /sup 127/Xe, /sup 201/Tl, /sup 82/Rb, and /sup 97/Ru is presented. (DHM)
Date: January 1, 1973
Creator: Richards, P. & Lebowitz, E.
Partner: UNT Libraries Government Documents Department
open access

Radioisotope program at LAMPF

Description: From summer study group on practical applications of accelerators; Los Alamos, New Mexico, USA (27 Aug 1973). The status of the program at LAMPF for producing isotopes for research, diagnostic, and therapeutic applications in medicme by proton-induced spallation reactions is summarized. On the basis of cross section and yield measurements, yields of /sup 82/Sr, /sup 123/I, /sup 125/ I, /sup 129/Cs, and /sup 127/Xe from LAMPF are projected. The development of recovery procedures for each of these isotopes, except /sup 129/Cs has been completed to the extent that attention is now being focussed on scaling these procedures to hot cell operations. The Isotope Production Facility is briefly described. (WHK)
Date: January 1, 1973
Creator: O'Brien, H.A. Jr.
Partner: UNT Libraries Government Documents Department
open access

Biomass Crop Production: Benefits for Soil Quality and Carbon Sequestration

Description: Research at three locations in the southeastern US is quantifying changes in soil quality and soil carbon storage that occur during production of biomass crops compared with row crops. After three growing seasons, soil quality improved and soil carbon storage increased on plots planted to cottonwood, sycamore, sweetgum with a cover crop, switchgrass, and no-till corn. For tree crops, sequestered belowground carbon was found mainly in stumps and large roots. At the TN site, the coarse woody organic matter storage belowground was 1.3 Mg ha{sup {minus}1}yr{sup {minus}1}, of which 79% was stumps and large roots and 21% fine roots. Switchgrass at the AL site also stored considerable carbon belowground as coarse roots. Most of the carbon storage occurred mainly in the upper 30 cw although coarse roots were found to depths of greater than 60 cm. Biomass crops contributed to improvements in soil physical quality as well as increasing belowground carbon sequestration. The distribution and extent of carbon sequestration depends on the growth characteristics and age of the individual biomass crop species. Time and increasing crop maturity will determine the potential of these biomass crops to significantly contribute to the overall national goal of increasing carbon sequestration and reducing greenhouse gas emissions.
Date: August 29, 1999
Creator: Bandaranayake, W.; Bock, B. R.; Houston, A.; Joslin, J. D.; Pettry, D. E.; Schoenholtz, S. et al.
Partner: UNT Libraries Government Documents Department
open access

A Study of the Factors Related to Planned and Actual Manufacturing Lead Time in Two Environments: (1) High-Volume Continuous-Production and (2) Job-Shop Production-to-Order

Description: This study focused upon the manufacturing lead time management in California's electrical and electronic machinery, equipment, and supplies industry. Manufacturing firms with one hundred or more employees were invited to participate in the research. Six subproblems relating to manufacturing lead time were selected and six appropriate null hypotheses were tested. The subproblems identified (1) factors influencing manufacturing lead time, (2) production planning processes influencing manufacturing lead time accuracy, and (3) techniques reducing manufacturing lead time. These factors, production planning processes, and techniques were then IV investigated to determine the importance of each of them in two environments: (1) high-volume continuous-production (HVCP) and (2) job-shop production-to-order (JSPTO).
Date: December 1980
Creator: Moshtaghi Moghaddam, Jahanguir
Partner: UNT Libraries
open access

Mr. Hassell: The TV Engineer

Description: This thesis project is about a television engineer in the Department of Radio, Television and Film at the University of North Texas. This project records the engineer's activities in the Department and interviews him about his career path. An accompanying written production report describes the pre-production, production and post-production processes of this project.
Date: December 1995
Creator: Chiu, Wen-Chi
Partner: UNT Libraries
open access

Final Technical Report for the Martin County Hydrogen Fuel Cell Development Project

Description: In September 2008, the U.S. Department of Energy and Martin County Economic Development Corporation entered into an agreement to further the advancement of a microtubular PEM fuel cell developed by Microcell Corporation. The overall focus of this project was on research and development related to high volume manufacturing of fuel cells and cost reduction in the fuel cell manufacturing process. The extrusion process used for the microfiber fuel cells in this project is inherently a low cost, high volume, high speed manufacturing process. In order to take advantage of the capabilities that the extrusion process provides, all subsequent manufacturing processes must be enhanced to meet the extrusion line’s speed and output. Significant research and development was completed on these subsequent processes to ensure that power output and performance were not negatively impacted by the higher speeds, design changes and process improvements developed in this project. All tasks were successfully completed resulting in cost reductions, performance improvements and process enhancements in the areas of speed and quality. These results support the Department of Energy’s goal of fuel cell commercialization.
Date: March 9, 2011
Creator: Eshraghi, Ray
Partner: UNT Libraries Government Documents Department
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