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Reaching teachers: The first step in teaching students

Description: A 1984 American Association of the Academy of Sciences study of more than 150 successful science in-service programs developed a list of their characteristics, which included: Strong academic component in mathematics, science, and communications, focused on enrichment rather than remediation; academic subjects taught by teachers who are highly competent in the subject matter and believe that students can learn the materials; heavy emphasis on the applications of science and mathematics and care… more
Date: January 1, 1991
Creator: Berry, G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Environmental restoration activities at the US Department of Energy's Pinellas Plant

Description: The Pinellas Plant, located in Largo, Florida, is part of the US Department of Energy's (DOE) weapons complex. GE Neutron Devices (GEND) has initiated an extremely aggressive, proactive Environmental Restoration (ER) Program at the Pinellas Plant. The ER program was started by AL to investigate environmental concerns associated with past waste management practices and procedures at DOE weapons installations. The Pinellas Plant has been involved with ER activities since the mid 1980's when the D… more
Date: January 1, 1991
Creator: Parker, M.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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RCRA Facility Investigation for the Townsite of Los Alamos, New Mexico

Description: During World War II, Los Alamos, New Mexico was established as an ideal location for the secrecy and safety needed for the research and development required to design a nuclear fission bomb. Experiments carried out in the 1940s generated both radioactive and hazardous waste constituents on what is presently part of the Los Alamos townsite. Under the RCRA permit issued to Los alamos national Laboratory in 1990, the Laboratory is scheduled for investigation of its solid waste management units (SW… more
Date: January 1, 1992
Creator: Dorries, Alison M.; Conrad, Ronald C. & Nonno, Linda M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Aromatic hydrocarbons associated with brines from geopressured wells

Description: The measurement of basic physical chemical properties of the brine components produced in the US DOE geopressured wells it necessary to provide the fundamental data necessary for an understanding of the mechanisms by which constituents of petroleum migrate and are partitioned into different phases in various geologic strata. The cryocondensate materials, which we sample, are present in the geopressured brines of all the wells observed to date. These materials are a complex mixture of aromatic c… more
Date: January 1, 1989
Creator: Keeley, D. F. & Meriwether, J. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Reservoir characterization of Pennsylvanian sandstone reservoirs

Description: The overall objectives of this work are: (1) to investigate the importance of various qualities and quantities of data on the optimization of water flooding performance; and (2) to study the application of newly developed, geostatistical techniques to analyze available production data to predict future prospects of infill drilling. Specifically, to satisfy our first objective, we will study the feasibility of applying fractal geometry concepts to characterize individual formations; develop a th… more
Date: January 1, 1991
Creator: Kelkar, B. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Cleaning of Croweburg Seam coal to improve boiler performance

Description: Recently an Oklahoma law was enacted that mandates that Oklahoma coal-fired utilities must burn a minimum of ten percent Oklahoma-mined coal. Public Service Company of Oklahoma (PSO), burning raw Croweburg Seam coal from Oklahoma as part of a blend, was interested in determining if cleaning the Croweburg Seam coal could reduce boiler slagging and fouling problems experienced at its Northeastern Station's Units 3 and 4. Studies of the Croweburg Seam coal performed at CQ Inc. in Homer City, Penns… more
Date: January 1, 1991
Creator: Dospoy, R. L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Taking interim actions: Integrating CERCLA and NEPA to move ahead with site cleanup

Description: The cleanup of contaminated sites can be expedited by using interim response actions in accordance with the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), as amended, and the National Oil and Hazardous Substances Pollution Contingency Plan (NCP). In fact, a major portion of some Superfund sites can be cleaned up using interim actions. For CERCLA sites being remediated by the US Department of Energy (DOE), such actions must also comply with the National Environme… more
Date: January 1, 1991
Creator: MacDonell, M.M.; Peterson, J.M. (Argonne National Lab., IL (United States)); Valett, G.L. (Argonne National Lab., IL (United States) MK-Ferguson Co., St. Charles, MO (United States)) & McCracken, S.H. (Argonne National Lab., IL (United States) USDOE, St. Charles, MO (United States))
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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The role of nuclear weapons in the year 2000

Description: This publication presents the proceedings for the workshop, The Role of Nuclear Weapons in the Year 2000, held on October 22--24, 1990. The workshop participants considered the changing nature of deterrence and of our strategic relationship with the Soviet Union, the impact of nuclear proliferation on regional conflicts, and ways that the nuclear forces might be restructured to reflect new political circumstances.
Date: January 1, 1990
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Get high school students hooked on science with a challenge

Description: Skilled scientists and engineers along with a public that understands science and technology are vital in today's technically competitive world. The United States must encourage its students to study and excel in scientific academic subjects and consider science and engineering as a possible career. An academic program that progresses from a state-wide to a national competition is a way of developing science and computing knowledge among high school students and teachers, as well as instilling … more
Date: January 1, 1992
Creator: Cohen, M.; Foster, M.; Kratzer, D.; Malone, P. & Solem, A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Characterization and Prediction of Spatial Variability of Unsaturated Hydraulic Properties in a Field Soil: Las Cruces, New Mexico

Description: A 91-m transect was set up in an irrigated field near Las Cruces, New Mexico to investigate the spatial variability of unsaturated soil properties. A total of 455 sampling points were monitored along a grid consisting of 91 stations placed 1 m apart by 5 depths per station. Post-irrigation soil water tension and water content measurements were recorded over 45 days at 11 time periods. The instantaneous profile was used to estimate the unsaturated hydraulic conductivity at the 455 sampling point… more
Date: January 1, 1991
Creator: Yeh, T. C. J.; Greenholtz, D. E.; Nash, M. S. & Wierenga, P. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Measurement of seasonal and yearly aquatic macrophyte changes in a reservoir using multidate aerial photography and SPOT digital remote sensor data

Description: Wetlands assimilate pollutants, provide flood control, and serve as breeding, nursery, and feeding grounds for fish and wildlife. Information on wetland distribution and condition are essential for their effective protection and management. Unfortunately, wetlands present challenges to effective evaluation and quantification. For example, inland wetlands are found in diverse geographic areas ranging from small tributary streams, shrub/scrub and marsh communities, to open water lacustrine enviro… more
Date: January 1, 1992
Creator: Jensen, J. R.; Narumalani, S.; Weatherbee, O. & Mackey, H. E., Jr.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Process development for production of coal/sorbent agglomerates

Description: The goal of this work was to develop a process flow diagram to economically produce a clean-burning fuel from fine Illinois coal. To accomplish this, the process of pelletizing fine coal with calcium hydroxide, a sulfur capturing sorbent, was investigated. Carbonation, which is the reaction of calcium hydroxide with carbon dioxide (in the presence of moisture) to produce a bonding matrix of calcium carbonate, was investigated as a method for improving pellet quality and reducing binder costs. P… more
Date: January 1, 1991
Creator: Rapp, D.M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Hazardous waste management and pollution prevention

Description: The management of hazardous wastes is one of the most critical environmental issues that faces many developing countries. It is one of the areas where institutional control and treatment and disposal technology has not kept pace with economic development. This paper reviews the development of hazardous waste management methods over the past decades, and provides the information on the status and trends of hazardous waste management strategy in selected western nations. Several issues pertinent … more
Date: January 1, 1992
Creator: Chiu, Shen-yann.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Development of clean coal and clean soil technologies using advanced agglomeration techniques

Description: Three major topics are discussed in this report: (1) Upgrading of Low Rank Coals by the Agflotherm Process. Test data, procedures, equipment, etc., are described for co-upgrading of subbituminous coals and heavy oil; (2) Upgrading of Bituminous Coals by the Agflotherm Process. Experimental procedures and data, bench and pilot scale equipments, etc., for beneficiating bituminous coals are described; (3) Soil Clean-up and Hydrocarbon Waste Treatment Process. Batch and pilot plant tests are descri… more
Date: January 1, 1990
Creator: Ignasiak, B.; Ignasiak, T. & Szymocha, K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

New regents for coal desulfurization

Description: The primary goal of this project was development and exploration of potential new desulfurization reagents for the removal of organic sulfur'' from Illinois coals by mild chemical methods. Potential new desulfurization reagents were investigated using organic sulfur compounds of the types thought to be present in coals. Reagents included low-valent metal complexes based on nickel and on iron as well as possible Single Electron Transfer reagents. Soluble coal extracts served as second generation… more
Date: January 1, 1991
Creator: Buchanan, D.H.; Kalembasa, S.; Olson, D.; Wang, S. & Warfel, L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Analyses of SRS waste glass buried in granite in Sweden and salt in the United States

Description: Simulated Savannah River Site (SRS) waste glass forms have been buried in the granite geology of the Stirpa mine in Sweden for two years. Analyses of glass surfaces provided a measure of the performance of the waste glasses as a function of time. Similar SRS waste glass compositions have also been buried in salt at the WIPP facility in Carlsbad, New Mexico for a similar time period. Analyses of the SRS waste glasses buried in-situ in granite will be presented and compared to the performance of … more
Date: January 1, 1991
Creator: Williams, J.P. (Tuskegee Inst., AL (United States)); Wicks, G.G. (Westinghouse Savannah River Co., Aiken, SC (United States)); Clark, D.E. (Florida Univ., Gainesville, FL (United States)) & Lodding, A.R. (Chalmers Tekniska Hoegskola, Goeteborg (Sweden))
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Ecological evaluation of proposed discharge of dredged material from Oakland Harbor into ocean waters (Phase 3 of 38-Foot Project)

Description: At the request of the US Army Corps of Engineering (USACE), environmental studies were conducted by Battelle/Marine Sciences Laboratory (MSL) to evaluate the suitability of sediments from Oakland Inner Harbor for dredging and ocean disposal. During the Phase 3 38-Foot Project, sediment cores were collected from mudline to {minus}39 ft mean lower low water at various locations in Oakland Inner Harbor channel and allocated to six composite samples. These composites were evaluated through physical… more
Date: January 1, 1992
Creator: Ward, J. A.; Word, J. Q.; Pinza, M. R.; Mayhew, H. L.; Barrows, E. S.; Kohn, N. P. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Integrating environmental restoration management within DOE using an alternative identification and evaluation procedure: A methodology and a case history

Description: The process of identifying and evaluating alternative corrective measures is a fundamental integrating part of Environmental Restoration (ER) activities. The process used in the Los Alamos National Laboratory (the Laboratory) ER Program is based on principles and tools from multiattribute decision analysis, a well-developed and proven method for evaluating options in decision situations involving multiple objectives, uncertainty, multiple interested stakeholders in the final decision, and the n… more
Date: January 1, 1992
Creator: Devaurs, M.; Brooks, D.; Kelly, E.; Wagner, S. & Vocke, R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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History of the youngest members of the Valles Rhyolite, Valles caldera, New Mexico using ESR dating method

Description: The cooling history of the Valles caldera was studied by the electron spin resonance (ESR) dating method using Al and Ti centers in quartz grains which were separated from the youngest units of the Valles Rhyolite. The ESR apparent ages are much younger than fission track ages and {sup 39}Ar- {sup 40}Ar ages. Three possibilities are suggested, the first is that the ESR ages are real, the second is that ESR method did not work for these samples, and the third is that about 10--40 ka, the signal … more
Date: January 1, 1991
Creator: Ogoh, K.; Toyoda, S.; Ikeda, S.; Ikeya, M. (Osaka Univ., Toyonaka (Japan). Dept. of Physics) & Goff, F. (Los Alamos National Lab., NM (United States))
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Ecological evaluation of proposed discharge of dredged material from Oakland Harbor into ocean waters (Phase 3 of 38-Foot Project)

Description: At the request of the US Army Corps of Engineers (USACE), environmental studies were conducted by Battelle/Marine Science Laboratory (MSL) to evaluate the suitability of sediments from Oakland Inner Harbor for dredging and ocean disposal. During the Phase 3 38-Foot Project, sediment cores were collected from mudline to {minus}39 ft mean lower low water at various locations in Oakland Inner Harbor channel and allocated to six composite samples. These composites were evaluated through physical/ch… more
Date: January 1, 1992
Creator: Ward, J. A.; Word, J. Q.; Pinza, M. R.; Mayhew, H. L.; Barrows, E. S.; Kohn, N. P. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Monitoring seasonal and annual wetland changes in a freshwater marsh with SPOT HRV data

Description: Eleven dates of SPOT HRV data along with near-concurrent vertical aerial photographic and phenological data for 1987, 1988, and 1989 were evaluated to determine seasonal and annual changes in a 400-hectare, southeastern freshwater marsh. Early April through mid-May was the best time to discriminate among the cypress (Taxodium distichum)/water tupelo (Nyssa acquatica) swamp forest and the non-persistent (Ludwigia spp.) and persistent (Typha spp.) stands in this wetlands. Furthermore, a ten-fold … more
Date: January 1, 1989
Creator: Mackey, H.E. Jr.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Research on improved and enhanced oil recovery in Illinois through reservoir characterization

Description: This project will provide information that can maximize hydrocarbon production minimize formation damage and stimulate new production in Illinois. Such information includes definition of hydrocarbon resources, characterization of hydrocarbon reservoirs, and the implementation of methods that will improve hydrocarbon extractive technology. Increased understanding of reservoir heterogeneities that affect oil recovery can aid in identifying producible resources. The transfer of technology to indus… more
Date: January 1, 1992
Creator: Oltz, D.F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Kalispell Maintenance Headquarters Project : Environmental Assessment.

Description: The facilities needed to maintain and repair Bonneville Power Administration (BPA's) electrical equipment in northwest Montana are currently in two locations: A maintenance headquarters at the Kalispell Substation, and a temporary leased facility south of Kalispell. The present situation is not efficient. There is not enough space to accommodate the equipment needed at each site, and coordination and communication between the two sites is difficult. Also, two sites means duplication of equipmen… more
Date: January 1, 1991
Creator: United States. Bonneville Power Administration.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

VHF EPR determination of the chemical forms of organic sulfur in coal

Description: This program addresses the need for innovative approaches to characterize the organic sulfur in Illinois Basin coals. We have developed a very high frequency electron paramagnetic resonance (EPR) spectrometer operating at the W-band of microwave frequencies (96 GHz). This instrument has shown unique sensitivity to heteroatoms in coal, and we believe the technique can be successfully applied for the non-destructive, direct determination of organic sulfur in coal. Preliminary data from Illinois c… more
Date: January 1, 1991
Creator: Clarkson, R.B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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