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Sterilizing radiation effects on selected polymers

Description: The mechanism of radiation effects and their industrial applications are discussed for the following classes of polymers: thermoplastics, thermosets, elastomers, films and fibers, and adhesives/coatings/potting compounds. 35 references, 3 tables. (DLC)
Date: March 1, 1979
Creator: Skiens, W. E.
Partner: UNT Libraries Government Documents Department
open access

Microbiologically mediated reduction in the pitting of mild steel overlaid with plywood

Description: Laboratory experiments were conducted to determine the role of microorganisms in the pitting of mild steel flooring, which had been overlaid with plywood. The experimental setups consisted of 4.8 mm (3/16 in.) mild steel plates covered with 12.7 mm (1/2 in.) thick pieces of plywood which were exposed to several different aqueous media supplemented with various combinations of a soil suspension and selected inorganic and organic compounds. Half of the replicate metal-wood-water setups were steri… more
Date: January 1, 1984
Creator: Soracco, R. J.; Berger, L. R.; Berger, J. A.; Mayack, L. A.; Pope, D. H. & Wilde, E. W.
Partner: UNT Libraries Government Documents Department
open access

The roles and functions of a lunar base Nuclear Technology Center

Description: This paper describes the roles and functions of a special Nuclear Technology Center which is developed as an integral part of a permanent lunar base. Numerous contemporary studies clearly point out that nuclear energy technology will play a major role in any successful lunar/Mars initiative program and in the overall establishment of humanity's solar system civilization. The key role of nuclear energy in the providing power has been recognized. A Nuclear Technology Center developed as part of o… more
Date: January 1, 1991
Creator: Buden, D. (EG and G Idaho, Inc., Idaho Falls, ID (United States)) & Angelo, J.A. Jr. (Science Applications International Corp., Melbourne, FL (United States))
Partner: UNT Libraries Government Documents Department
open access

Sandia Irradiator for Dried Sewage Solids

Description: Separate abstracts have been prepared for the individual papers presented at the seminar. (TFD)
Date: February 1, 1979
Partner: UNT Libraries Government Documents Department
open access

Thermal effects in radiation processing

Description: The balance of ionizing radiation energy incident on an object being processed is discussed in terms of energy losses, influencing the amount really absorbed. To obtain the amount of heat produced, the absorbed energy is corrected for the change in internal energy of the system and for the heat effect of secondary reactions developing after the initiation. The temperature of a processed object results from the heat evolved and from the specific heat of the material comprising the object. The sp… more
Date: October 21, 1984
Creator: Zagorski, Z.P.
Partner: UNT Libraries Government Documents Department
open access

Current regulatory and licensing status for byproduct sources, facilities and applications

Description: Public use of nuclear byproducts, especially radioactive isotopes, will require approval by various regulatory agencies. Use of cesium-137 as an irradiation source for sterilizing medical products will require US Nuclear Regulatory Commission (NRC) approval. Two applications have been filed with NRC, and approval is expected soon. Widespread use of irradiation for food products depends on a favorable ruling by the Food and Drug Administration (FDA). A ruling is pending that would permit irradia… more
Date: February 1, 1985
Creator: Tingey, G. L.; Jensen, G. A. & Hazelton, R. F.
Partner: UNT Libraries Government Documents Department
open access

Nutrient availability as a control of the abundance and activities of deep subsurface microorganisms

Description: The focus of our research is to determine whether the availability of major nutrients (C, N, P) control the abundance, distribution, and activity of heterotrophic microorganisms in subsurface sediments. Specifically we have developed and are testing a microcosm system using subsurface sediment samples from a DOE site. We are using this system to conduct a preliminary nutrient enrichment experiments. The flow-through microcosm system simulates conditions in natural aquifers and can be regulated … more
Date: January 1, 1992
Creator: Ghiorse, W.C.
Partner: UNT Libraries Government Documents Department
open access

Estimates of process energy use in four key food products industries

Description: Process energy profiles were developed for a representative plant in each of four selected food processing industries. These were: wet corn milling, hog slaughtering and processing, potato dehydration, and soybean crushing. Estimates of total energy consumption per pound of raw product input to each process were derived from in-plant studies. These energy coefficients were found to be: 4100 Btu/lb corn milled; 3200 Btu/lb live hog processed; 1500 Btu/lb raw potatoes granulated; and 800 Btu/lb s… more
Date: January 1, 1977
Creator: Divine, T. E.; Alzheimer, D. P. & Smith, W. F.
Partner: UNT Libraries Government Documents Department
open access

Eliminating Medical Waste Liabilities Through Mobile Maceration and Disinfection

Description: Commercial medical waste treatment technologies include incineration, melting, autoclaving, and chemical disinfection. Incineration disinfects, destroys the original nature of medical waste, and reduces the waste volume by converting organic waste content to carbon dioxide and water, leaving only residual inorganic ash. However, medical waste incinerator numbers have plummeted from almost 2,400 in 1995 to 115 in 2003 and to about 62 in 2005, due to negative public perception and escalating comp… more
Date: February 1, 2006
Creator: Rankin, R. A.; Soelberg, N. R.; Klingler, K. M.; Lagle, C. W. & Byers, L. L.
Partner: UNT Libraries Government Documents Department
open access

PARTICIPANT SUPPORT FOR THE 2010 GORDON RESEARCH CONFERENCE ON PLASMA PROCESSING SCIENCE (JULY 11-16,2010)

Description: The 2010 Gordon Research Conference on Plasma Processing Science will feature a comprehensive program that will highlight the most cutting edge scientific advances in low temperature plasma science and will explore the applications of low temperature plasma technology relative to many grand societal challenges. Fundamental science sessions will focus on plasma kinetics, plasma surface interactions, and recent trends in plasma generation and multi-phase plasmas. Application sessions will explore… more
Date: June 14, 2011
Creator: Kortshagen, Uwe
Partner: UNT Libraries Government Documents Department
open access

Potential and Future Trends on Industrial Radiation Processing Technology Application in Emerging Country - Brazil

Description: Brazil started the use of radiation technology in the seventies on crosslinking polyethylene for insulation of wire and electronic cables and sterilization of medical care devices. The present status of industrial applications of radiation shows that the use of this technology is increasing according to the economical development and the necessity to become the products manufactured in the local industries competitive in quality and price for internal and external market. The on going developme… more
Date: October 6, 2004
Creator: Sampa, Maria Helena O.; Omi, Nelson M.; Rela, Carolina S. & Tsai, David
Partner: UNT Libraries Government Documents Department
open access

Energy Systems and Population Health

Description: It is well-documented that energy and energy systems have a central role in social and economic development and human welfare at all scales, from household and community to regional and national (41). Among its various welfare effects, energy is closely linked with people s health. Some of the effects of energy on health and welfare are direct. With abundant energy, more food or more frequent meals can be prepared; food can be refrigerated, increasing the types of food items that are consumed a… more
Date: April 12, 2004
Creator: Ezzati, Majid; Bailis, Rob; Kammen, Daniel M.; Holloway, Tracey; Price, Lynn; Cifuentes, Luis A. et al.
Partner: UNT Libraries Government Documents Department
open access

Functionalized Silicon Membranes for Selective Bio-Organisms Capture

Description: Membranes with various pore size, length, morphology and density have been synthesized out of diverse materials for size exclusion-based separation. An example of application is the sterilization of intravenous lines by exclusion of bacteria and viruses using Polyvinylidene Fluoride membranes with 0.1 {micro}m diameter pores. The need for chemically specific filtration has recently been addressed, but for small molecules only. An important problem remaining to be solved is the selective capture… more
Date: January 9, 2003
Creator: Letant, S E; Hart, B R; van Buuren, A W & Terminello, L J
Partner: UNT Libraries Government Documents Department
open access

Hydrostatic High-Pressure Post-Processing of Specimens Fabricated by DLP, SLA, and FDM: An Alternative for the Sterilization of Polymer-Based Biomedical Devices

Description: This article assesses the effects of sterilization in materials manufactured using additive manufacturing by employing a sterilization technique used in the food industry.
Date: December 13, 2018
Creator: Robles Linares-Alvelais, José; Figueroa-Cavazos, J. Obedt; Chuck-Hernandez, C.; Siller Carrillo, Héctor Rafael; Rodríguez, Ciro A. & Martínez-López, J. Israel
Partner: UNT College of Engineering
open access

EM Structure Based and Vacuum Acceleration

Description: The importance of particle acceleration may be judged from the number of applications which require some sort of accelerated beam. In addition to accelerator-based high energy physics research, non-academic applications include medical imaging and treatment, structural biology by x-ray diffraction, pulse radiography, cargo inspection, material processing, food and medical instrument sterilization, and so on. Many of these applications are already well served by existing technologies and will pr… more
Date: September 27, 2005
Creator: Colby, E. R.
Partner: UNT Libraries Government Documents Department
open access

Providing safe drinking water to 1.2 billion unserved people

Description: Despite substantial advances in the past 100 years in public health, technology and medicine, 20% of the world population, mostly comprised of the poor population segments in developing countries (DCs), still does not have access to safe drinking water. To reach the United Nations (UN) Millennium Goal of halving the number of people without access to safe water by 2015, the global community will need to provide an additional one billion urban residents and 600 million rural residents with safe … more
Date: June 1, 2003
Creator: Gadgil, Ashok J. & Derby, Elisabeth A.
Partner: UNT Libraries Government Documents Department
open access

Induction linear accelerators for commercial photon irradiation processing

Description: A number of proposed irradiation processes requires bulk rather than surface exposure with intense applications of ionizing radiation. Typical examples are irradiation of food packaged into pallet size containers, processing of sewer sludge for recycling as landfill and fertilizer, sterilization of prepackaged medical disposals, treatment of municipal water supplies for pathogen reduction, etc. Volumetric processing of dense, bulky products with ionizing radiation requires high energy photon so… more
Date: January 13, 1989
Creator: Matthews, Stephen M.
Partner: UNT Libraries Government Documents Department
open access

International cooperative effort to establish dosimetry standardization for radiation processing

Description: Radiation processing is a rapidly developing technology with numerous applications in food treatment, sterilization, and polymer modification. The effectiveness of the process depends, however, on the proper application of dose and its measurement. These aspects are being considered by a wide group of experts from around the world who have joined together to write a comprehensive set of standards for dosimetry for radiation processing. Originally formed in 1984 to develop standards for food pro… more
Date: January 1, 1989
Creator: Farrar, H., IV
Partner: UNT Libraries Government Documents Department
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