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in subjects: "Synergism"  
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Encapsulation of hazardous wastes into agglomerates

Description: The objective of this study was to investigate the feasibility of using the cementitious properties and agglomeration characteristics of coal conversion byproducts to encapsulate and immobilize hazardous waste materials. The intention was to establish an economical way of co-utilization and co-disposal of wastes. In addition, it may aid in the eradication of air pollution problems associated with the fine-powdery nature of fly ash. Encapsulation into agglomerates is a novel approach of treating… more
Date: January 28, 1992
Creator: Guloy, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Polymer-based separations: Synthesis and application of polymers for ionic and molecular recognition

Description: Polymer-based separations have utilized resins such as sulfonic, acrylic, and iminodiacetic acid resins and the XAD series. Selective polymeric reagents for reaction with a targeted metal ion were synthesized as polymers with two different types of functional groups, each operating on the ions through a different mechanism. There are 3 classes of DMBPs (dual mechanism bifunctional polymers). Research during this period dealing with metal ion recognition focused on two of these classes (reductio… more
Date: January 1, 1992
Creator: Alexandratos, S.D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Cellulose fermentation by nitrogen-fixing anaerobic bacteria

Description: In anaerobic natural environments cellulose is degraded to methane, carbon dioxide and other products by the combined activities of many diverse microorganisms. We are simulating processes occurring in natural environments by constructing biologically-defined, stable, heterogeneous bacterial communities (consortia) that we use as in vitro systems for quantitative studies of cellulose degradation under conditions of combined nitrogen deprivation. These studies include the investigation of (i) me… more
Date: December 13, 1992
Creator: Canale-Parola, E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The role of cellular and molecular studies in evaluation of health effects from combined radiation and chemical exposures

Description: Additive models are currently used to predict risks following exposure to multiple agents or complex mixtures. Use of these models is questioned because different methods are used to derive risks for chemical and physical agents depending on the database used. Risks for the induction of cancer from radiation are based on large sets of human data, while standards are set for most chemical carcinogens using information derived from animal studies. However, it is not, from a scientific point of vi… more
Date: June 1, 1992
Creator: Brooks, A. L.; Gilbert, E. S.; Kitchin, R. M. & Johnson, N. F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Polymer-based separations: Synthesis and application of polymers for ionic and molecular recognition. Triennial performance report, August 1, 1989--July 31, 1992

Description: Polymer-based separations have utilized resins such as sulfonic, acrylic, and iminodiacetic acid resins and the XAD series. Selective polymeric reagents for reaction with a targeted metal ion were synthesized as polymers with two different types of functional groups, each operating on the ions through a different mechanism. There are 3 classes of DMBPs (dual mechanism bifunctional polymers). Research during this period dealing with metal ion recognition focused on two of these classes (reductio… more
Date: January 1, 1992
Creator: Alexandratos, S. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The role of cellular and molecular studies in evaluation of health effects from combined radiation and chemical exposures

Description: Additive models are currently used to predict risks following exposure to multiple agents or complex mixtures. Use of these models is questioned because different methods are used to derive risks for chemical and physical agents depending on the database used. Risks for the induction of cancer from radiation are based on large sets of human data, while standards are set for most chemical carcinogens using information derived from animal studies. However, it is not, from a scientific point of vi… more
Date: June 1, 1992
Creator: Brooks, A. L.; Gilbert, E. S.; Kitchin, R. M. & Johnson, N. F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Space nuclear power, propulsion, and related technologies.

Description: Sandia National Laboratories (Sandia) is one of the nation's largest research and development (R&D) facilities, with headquarters at Albuquerque, New Mexico; a laboratory at Livermore, California; and a test range near Tonopah, Nevada. Smaller testing facilities are also operated at other locations. Established in 1945, Sandia was operated by the University of California until 1949, when, at the request of President Truman, Sandia Corporation was formed as a subsidiary of Bell Lab's Western… more
Date: January 1, 1992
Creator: Berman, Marshall
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Instrumentation and telemetry at Sandia National Laboratories.

Description: Sandia National Laboratories (SNL) is a Department of Energy multiprogram engineering and scientific facility with unique design, development, and test capabilities arising from their work in nuclear weapons, energy resources, defense systems, nuclear safeguards, and specialized scientific endeavors. To support these programs, they have developed instrumentation and telemetry expertise not available elsewhere. This technology is applicable to projects in government and industry. Since the 1950s… more
Date: January 1, 1992
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Metaphase chromosome aberrations as markers of radiation exposure and dose

Description: Chromosome aberration frequency provides the most reliable biological marker of dose for detecting acute accidental radiation exposure. Significant radiation-induced changes in the frequency of chromosome aberrations can be detected at very low doses. Our paper provides information on using molecular chromosome probes paints'' to score chromosome damage and illustrates how technical advances make it possible to understand mechanisms involved during formation of chromosome aberrations. In animal… more
Date: October 1, 1992
Creator: Brooks, A. L.; Khan, M. A.; Jostes, R. F. & Cross, F. T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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