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Articles 60781 - 60810 of 64990
Full-Text Articles in Entire DC Network
Anaerobic Biological Treatment Of Incinerator Ash To Immobilize Toxic Metal Residues, Uma Parasar
Anaerobic Biological Treatment Of Incinerator Ash To Immobilize Toxic Metal Residues, Uma Parasar
Theses
In this study, a reliable and inexpensive method for biologically immobilizing toxic heavy metal residues present in very high concentrations in incinerator ash was developed. Desulfovibrzo, a genus of sulfate-reducing bacteria was cultured and treated with combined ash under anaerobic conditions. The carbon source, lactate, and the electron acceptor, sulfate, were provided to the cultures for their normal growth. Since the sulfate reducers utilize organic matter using sulfate as the oxidizing agent, sulfides are the corresponding end products of the reaction. Ash was added to well established cultures of desu f ovibrio. Immobilization of the heavy metals in the ash …
Gas Chromatographic Method For Determination Of 28 Volatile Organic Compounds Emitted From A Sewerage Plant, Yeming Sun
Gas Chromatographic Method For Determination Of 28 Volatile Organic Compounds Emitted From A Sewerage Plant, Yeming Sun
Theses
In this study, 28 volatile organic compounds (VOCs) emitted from the Linden Roselle Sewerage Authority Plant (LRSA) were monitered. The determination by gas chromatography (GC) is presented. This work emphasizes the collection of whole air samples, using a canister-based sampling system with cryogenic concentration. An appropriate temperature program was selected to obtain the best sample separation. The procedure for the identification of 28 standard gas mixture was achieved by comparing the chromatograms of sample with those of the specific groups of target compounds, as well as by comparing the sample with the results from GC Mass spectrometeric analysis. Because of …
Thermal Desorption Of Contaminated Soils, Hsi-Ming Sung
Thermal Desorption Of Contaminated Soils, Hsi-Ming Sung
Theses
A new method by employing the heating probe for the in-situ cleanup of soils that are contaminated with volatile organic hazardous substances is explored. This investigation is a laboratory simulation that was aimed to evaluate the feasibility of desorption of volatile organic compoumds (VOCs) from soil, and to determine the efficiency of the heating probe for maximum desorption.
Two organic compounds, Trichloroethylene, Carbon tetrachloride, were selected as simulants. The experimental results demonstrate that the removal efficiency range from 97.65% to >99.95% of Trichloroethylene and 98.14% to >99.95% of Carbon tetrachloride can be recovered for a 24 hour interval with a …
Analysis Of Chemical Contaminants In Tissue Samples From Two Species Of Fish, Michael David Reive
Analysis Of Chemical Contaminants In Tissue Samples From Two Species Of Fish, Michael David Reive
Theses
Interaction of marine species with chemical pollutants within the marine ecosystem is extremely complex and difficult to interpret. The purpose of this thesis was to investigate the effect of an exposure of treated municipal wastewater on winter flounder (Pseudopleuronectes americanus) and striped bass (Morone saxatilis). Fish from two locations were exposed to different concentrations of wastewater. Half of the fish from each tank were sacrificed, and the remaining fish were given a depuration period in unpolluted water. Tissue samples were composited, soxhlet extracted and passed through a florisil cleanup column. Gas chromatography, was used to analyze for hexachlorobenzene, hexachlorobutadiene, Aroclor …
Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, January 1991, College Of Engineering And Computer Science, Wright State University
Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, January 1991, College Of Engineering And Computer Science, Wright State University
BITs and PCs Newsletter
A twelve page newsletter created by the Wright State University College of Engineering and Computer Science that addresses the current affairs of the college.
Determination Of Rate Distributions From Kinetic Experiments, Todd B. Sauke, P. J. Steinback, K. Chu, H. Frauenfelder, J. B. Johnson, D. C. Lamb, G. U. Nienhaus, R. D. Young
Determination Of Rate Distributions From Kinetic Experiments, Todd B. Sauke, P. J. Steinback, K. Chu, H. Frauenfelder, J. B. Johnson, D. C. Lamb, G. U. Nienhaus, R. D. Young
Faculty Publications
Rate processes in proteins are often not adequately described by simple exponential kinetics. Instead of modeling the kinetics in the time domain, it can be advantageous to perform a numerical inversion leading to a rate distribution function f(lambda). The features observed in f(lambda) (number, positions, and shapes of peaks) can then be interpreted. We discuss different numerical techniques for obtaining rate distribution functions, with special emphasis on the maximum entropy method. Examples are given for the application of these techniques to flash photolysis data of heme proteins.
Ground Water Quality And Management In Minnesota, Jeanette H. Leete
Ground Water Quality And Management In Minnesota, Jeanette H. Leete
Journal of the Minnesota Academy of Science
Minnesota is known for its abundant surface water - lakes, rivers, and streams - and much emphasis is placed on managing these priceless resources, yet it is ground water that supplies drinking water to about 75 percent of the state's population, and ground water that agriculture depends on for 88 percent of irrigation water. While ground water quality can be and is impacted by activities at the land surface, the greatest proportion of Minnesota's ground water is still suitable for most uses.
Over 175 units and several levels of government are involved in water resource protection and planning. Choices are …
Table Of Contents, Volume Two, Number One, Winter 1991, Risk Editorial Board
Table Of Contents, Volume Two, Number One, Winter 1991, Risk Editorial Board
RISK: Health, Safety & Environment (1990-2002)
Table of contents for the journal Risk: Issues in Health & Safety (ISSN: 1073-8673)
Prospectus And Evaluation Copies Available, Additional Coverage In Indices, Risk Editorial Board
Prospectus And Evaluation Copies Available, Additional Coverage In Indices, Risk Editorial Board
RISK: Health, Safety & Environment (1990-2002)
Editorial announcements and news for the inactive journal Risk: Health, Safety & Environment (ISSN: 1073-8673).
Santa Clara Magazine, Volume 33 Number 2, Winter 1991, Santa Clara University
Santa Clara Magazine, Volume 33 Number 2, Winter 1991, Santa Clara University
Santa Clara Magazine
10 - GROWING UP ADOPTED Santa Clarans who have adopted children or are adopted discuss their experiences with interracial adoption and talk about the identity crisis years most adoptees face. By Susan Frey
16 - WHAT YOUR DOCTOR DOESN'T KNOW CAN KILL YOU A small but growing number of doctors around the world are turning to biological medicine to treat their patients with cancer and other serious diseases. By Michael Sheehan '77
20 - SCU's FATHER GOOSE When John Drahrnann shepherds undergraduates through the academic maze, he often counsels their parents as well. By Thomas F. Black and Maureen Mclnaney …
The Connection Between Water Quality And Water Quantity, Lajuana Wilcher, University Of Colorado Boulder. Natural Resources Law Center
The Connection Between Water Quality And Water Quantity, Lajuana Wilcher, University Of Colorado Boulder. Natural Resources Law Center
Books, Reports, and Studies
10 p. ; 28 cm
Discussion Papers On Irrigation Water Supply Organizations, Rodney T. Smith, Bruce C. Driver, John H. Davidson, Timothy De Young, University Of Colorado Boulder. Natural Resources Law Center
Discussion Papers On Irrigation Water Supply Organizations, Rodney T. Smith, Bruce C. Driver, John H. Davidson, Timothy De Young, University Of Colorado Boulder. Natural Resources Law Center
Books, Reports, and Studies
ii, 61 p. ; 28 cm
Irrigation organizations and the reallocation of western water / Rodney T. Smith -- Issues in water conservation / Bruce Driver -- Irrigation districts and water quality / John H. Davidson -- Some thoughts on governing special districts / Tim De Young
Student Fact Book, Fall 1991, Wright State University, Office Of Student Information Systems, Wright State University
Student Fact Book, Fall 1991, Wright State University, Office Of Student Information Systems, Wright State University
Wright State University Student Fact Books
The student fact book has general demographic information on all students enrolled at Wright State University for Fall Quarter, 1991.
The Oil Pollution Act Of 1990: A Solution Or A Problem?, Kevin M. Carey
The Oil Pollution Act Of 1990: A Solution Or A Problem?, Kevin M. Carey
Marine Affairs Theses and Major Papers
The signing of the Oil Pollution Control Act of 1990, Public law 101-380, (OPA 90) on August 18, 1990 was a significant landmark in the struggle to control pollution by oil and the activities associated with the recovery, transport, and refinement of oil and associated products in the territorial waters of the United States, and was long overdue. The aftermath of the Exxon Valdez spill, which was the impetus that finally prodded Congress to pass the oil spill legislation that had been under consideration for years, has been filled with controversy over how the spill occurred, how the clean up …
Mariculture Management For Pohnpei State, Federated States Of Micronesia, Kevin Brooks Foster
Mariculture Management For Pohnpei State, Federated States Of Micronesia, Kevin Brooks Foster
Marine Affairs Theses and Major Papers
The Marine Resources Division of Pohnpei State, Federated States of Micronesia is currently engaged in development activities that include the establishment of family scale mariculture projects for community members of remote villages and outer islands. The goal of this undertaking is to supplement subsistence and income generation ventures for community members through the wise use and exploitation of the marine environment. These aims may be jeopardized unless a management plan is devised that reflects the customary marine resource practices as embraced by islanders from each community. The intent of this thesis projects is to devise a mariculture management model that …
Alyeska, Sullom Voe And The Oil Pollution Act Of 1990: A Comparison Of Tanker Safety Regulation And Environmental Monitoring, Neil V. Kelly
Alyeska, Sullom Voe And The Oil Pollution Act Of 1990: A Comparison Of Tanker Safety Regulation And Environmental Monitoring, Neil V. Kelly
Marine Affairs Theses and Major Papers
The Exxon Valdez oil spill in 1989 highlighted deficiencies in the Trans Alaska Pipeline System's (TAPS) marine operation on both regulatory and operational levels. The United States Congress passed the Oil Pollution Act of 1990 to promote the prevention of oil spills and to improve our ability to mitigate the effects of spills that occur. An oil terminal roughly analogous to the TAPS terminal at Valdez, Alaska, exists at Sullom Voe in the Shetland Islands, west of Norway and to the north of Scotland in the North Sea. The Sullom Voe terminal has had an environmental advisory group guiding policy …
The Siia: A Mechanism For Addressing Pollution Problems Plaguing New Jersey's Coastal Zone, Laurie J. Sands
The Siia: A Mechanism For Addressing Pollution Problems Plaguing New Jersey's Coastal Zone, Laurie J. Sands
Marine Affairs Theses and Major Papers
New Jersey has been plagued in recent years by beach closures resulting from elevated bacteria levels after rainfall events. The Sewage Infrastructure Improvement Act (SIIA) was adopted to correct these problems by addressing both point and nonpoint sources of pollution found in discharges of stormwater. However, there are problems with the SIIA such as overly burdensome requirements, limited resources and lack of future funding and direction. This research identifies these problems and examines existing State and federal legislation to find the necessary components to correct these concerns. The results show that by pursuing a legislative amendment to the SIIA, redistributing …
The Impact Of Tourism On Block Island, Thomas Green
The Impact Of Tourism On Block Island, Thomas Green
Marine Affairs Theses and Major Papers
This thesis examines the impacts of tourism on the residents of Block Island. More specifically the study seeks to identify the specific areas of concern, as perceived by the residents, in three major areas of impact: economic, social and environmental. It was hypothesized that the residents of Block Island, a mature tourist destination area, had formulated perceptions of the impacts of tourism and that these perceptions, if analyzed, would identify protection of the environment and threats to the Island's lifestyle as major concerns. Factor analysis was employed to analyze survey responses from residents on questions regarding tourism on Block Island. …
Thematic Approach To Teaching Reading And Environmental Education Kindergarten-Sixth Grade, Christina R. Gonzales
Thematic Approach To Teaching Reading And Environmental Education Kindergarten-Sixth Grade, Christina R. Gonzales
Theses Digitization Project
No abstract provided.
Developing An Inservice On Energy And Energy Conservation For Teachers, Grades Kindergarten-Eight, Cynthia Gail Blair
Developing An Inservice On Energy And Energy Conservation For Teachers, Grades Kindergarten-Eight, Cynthia Gail Blair
Theses Digitization Project
Energy resource conservation.
Windbreaks In Sustainable Agricultural Systems, Vernon C. Quam, John Gardner, James R. Brandle, Teresa K. Boes
Windbreaks In Sustainable Agricultural Systems, Vernon C. Quam, John Gardner, James R. Brandle, Teresa K. Boes
School of Natural Resources: Faculty Publications
Sustainable agriculture is a system of whole-farm resource use balanced with whole-farm productivity. The overall level of productivity achieved is dependent upon the ability to coordinate and manage simultaneously the soil, water, plant, and animal resources within climatic and economic limits. Both the kind and amount of plants and animals supported by the system are important and play significant roles, both individually and collectively in maintaining a healthy farm environment. In the future, integrated systems will help reduce human impact on resources while providing sufficient supplies of high quality food and fiber.
Windbreaks provide protection for people, animals, buildings, crops, …
Su Excelencia, Aldemaro Romero Jr.
Ua56/1 Fact Book, Wku Institutional Research
Ua56/1 Fact Book, Wku Institutional Research
WKU Administration Documents
Statistical and demographic profile of WKU.
The Probe, Issue 107 - January/February 1991
The Probe, Issue 107 - January/February 1991
The Probe: Newsletter of the National Animal Damage Control Association
Contents: Registration of Alpha-Chloralose Rice Seed Repellents Perimeter Netting of Catfish Ponds Frightening Devices for Coyotes DRC-1339 Registration DRC-1339 For Raven Control Zinc Phosphide Registration Coyote Attractant Research Gas Cartridges Coyote Bait Acceptance Trapping is a Profession, Not a Sport Bovine TB in Elk NADCA Secretary Objects to Predator Article Heart Transplants for Rats Gallup Poll on Public Opinion of Animal Rightists Reaffirmed Personnel Changes Prevention and Control Tips: Tree Squirrels Upcoming Meetings President’s Corner NADCA Official Sponsor of Fifth Eastern Wildlife Damage Control Conference Information on Snaring Needed by Maine Reader
The Calendar - January 1991, Nova University
The Calendar - February 1991, Nova University
In Vitro Assembly Of Apophytochrome And Apophytochrome Deletion Mutants Expressed In Yeast With Phycocyanobilin, Lily Deforce, Ken-Ichi Tomizawa, Naoko Ito, Dave Farrens, Pill-Soon Song, Masaki Furuya
In Vitro Assembly Of Apophytochrome And Apophytochrome Deletion Mutants Expressed In Yeast With Phycocyanobilin, Lily Deforce, Ken-Ichi Tomizawa, Naoko Ito, Dave Farrens, Pill-Soon Song, Masaki Furuya
Department of Chemistry: Faculty Publications
Recombinant pea type I phytochrome apoprotein expressed in yeast is shown to assemble in vitro with phycocyanobilin to produce a photoreversible phytochromelike adduct. As an initial investigation of the amino acid sequence requirements for chromophore incorporation, three phyA gene product deletion mutants were produced in yeast. Truncation of the N-terminal tail to residue 46 demonstrates that this region is not critical to bilin attachment, but a deletion mutant lacking 222 amino acids from the N terminus failed to yield holophytochrome in vitro, under the same conditions. A mutant comprising a deletion of the C terminus to residue 548 …
Rainbow Bridge National Monument General Management Plan, Development Concept Plan, Resource Management Plan, Interpretive Prospectus, And Environmental Assessment, United States, Department Of The Interior, National Park Service
Rainbow Bridge National Monument General Management Plan, Development Concept Plan, Resource Management Plan, Interpretive Prospectus, And Environmental Assessment, United States, Department Of The Interior, National Park Service
Resource Management Plans (UT)
This General Management Plan provides the National Park Service with direction for long-range management, development, and use of the Rainbow Bridge National Monument. The plan responds to new issues identified during the planning process when the draft plan was published in September of 1990. A main concern expressed during public review of the draft plan was diverse public expectations for visitor experience, crowding, and the high number of visitors accessing a limited area of Rainbow Bridge. In addition, the plan and environmental assessment address these diverse public expectations along with the issues of a visitor experience, protection of natural and …
Theoretical Vibrational Study Of Fx...Nh3 (X=H, D, Li) Complexes, Y. Bouteiller, Z. Latajka, H. Ratajczak, Steve Scheiner
Theoretical Vibrational Study Of Fx...Nh3 (X=H, D, Li) Complexes, Y. Bouteiller, Z. Latajka, H. Ratajczak, Steve Scheiner
Chemistry and Biochemistry Faculty Publications
This paper presents the first ab initio attempt to construct the stretching fundamentals νFX and νF...N (X=H, D, Li) in the FX...NH3 complexes taking into account the mechanical anharmonicity. A potential‐energy surface V(rFX,RF...N) grid was generated at the self‐consistent‐field and second‐order Møller–Plesset levels. The coefficients fitting the potential‐energy surface up to the fourth order have been used to compute the νFX and νF...N stretching modes. The vibrational problem is solved by means of a variational treatment which includes the effects of mechanical …
Ab Initio Study Of Intermolecular Potential Of H2o Trimer, G. Chalasinski, M. M. Szczesniak, P. Cieplak, Steve Scheiner
Ab Initio Study Of Intermolecular Potential Of H2o Trimer, G. Chalasinski, M. M. Szczesniak, P. Cieplak, Steve Scheiner
Chemistry and Biochemistry Faculty Publications
Nonadditive contribution to the interaction energy in water trimer is analyzed in terms of Heitler–London exchange, SCF deformation, induction and dispersion nonadditivities. Nonadditivity originates mainly from the SCF deformation effect which is due to electric polarization. However, polarization does not serve as a universal mechanism for nonadditivity in water. In the double‐donor configuration, for example, the Heitler–London exchange contribution is the most important and polarization yields the wrong sign. Correlation effects do not contribute significantly to the nonadditivity. A detailed analysis of the pair potential is also provided. The present two‐body potential and its components are compared to the existing …