Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- University of Nebraska - Lincoln (3011)
- China Coal Technology and Engineering Group (CCTEG) (1822)
- Utah State University (1173)
- University of Nevada, Las Vegas (968)
- University of Kentucky (951)
-
- University of Colorado Law School (898)
- Montana Tech Library (838)
- City University of New York (CUNY) (540)
- University of Arkansas, Fayetteville (538)
- Portland State University (457)
- University of South Florida (338)
- Department of Primary Industries and Regional Development, Western Australia (316)
- Clemson University (314)
- Chulalongkorn University (295)
- University of Texas at El Paso (263)
- Old Dominion University (240)
- Louisiana State University (232)
- New Jersey Institute of Technology (231)
- Montclair State University (224)
- Central Mining Institute (212)
- World Maritime University (204)
- University of Texas Rio Grande Valley (203)
- Air Force Institute of Technology (188)
- Edith Cowan University (176)
- Chapman University (174)
- SIT Graduate Institute/SIT Study Abroad (153)
- Chinese Academy of Sciences (147)
- Purdue University (132)
- South Dakota State University (130)
- University of Rhode Island (126)
- Keyword
-
- Sustainability (416)
- Climate change (400)
- Water quality (359)
- 2014 International Conference on Hydroinformatics HIC (355)
- United States (318)
-
- Gas (284)
- Groundwater (278)
- And Energy; Structural Materials; Sustainability (248)
- Energy Systems; Environmental Indicators and Impact Assessment; Environmental Monitoring; Mining Engineering; Oil (248)
- Western Australia (218)
- Priority Soils (215)
- Colorado (208)
- Drought (169)
- Water (168)
- Environment (162)
- Conservation (161)
- Remote sensing (160)
- Agriculture (157)
- California (153)
- Energy (147)
- Hydrology (145)
- Utah (142)
- Irrigation (123)
- Wyoming (119)
- Wetlands (117)
- West (115)
- Natural resources (113)
- Water supply (113)
- Salinity (111)
- Engineering (109)
- Publication Year
- Publication
-
- Coal Geology & Exploration (1822)
- Silver Bow Creek/Butte Area Superfund Site (826)
- Reports (603)
- School of Natural Resources: Faculty Publications (583)
- World of Coal Ash Proceedings (580)
-
- International Conference on Hydroinformatics (355)
- Theses and Dissertations (322)
- Theses (288)
- Water Current Newsletter (284)
- Open Access Theses & Dissertations (260)
- USF Tampa Graduate Theses and Dissertations (236)
- UNLV Theses, Dissertations, Professional Papers, and Capstones (217)
- United States Department of Agriculture Wildlife Services: Staff Publications (217)
- Applied Environmental Research (216)
- Journal of Sustainable Mining (212)
- Electronic Theses and Dissertations (203)
- Arkansas Water Resources Center Technical Reports (179)
- LSU Master's Theses (167)
- S.C. Water Resources Conference (164)
- Graduate Theses and Dissertations (152)
- Bulletin of Chinese Academy of Sciences (Chinese Version) (147)
- Independent Study Project (ISP) Collection (139)
- Dissertations and Theses (129)
- School of Earth, Environmental, & Marine Sciences Faculty Publications (126)
- Transmutation Sciences Materials (TRP) (125)
- All U.S. Government Documents (Utah Regional Depository) (123)
- KWRRI Research Reports (122)
- United States Geological Survey: Staff Publications (117)
- Marine Affairs Theses and Major Papers (110)
- Publications and Research (110)
- Publication Type
Articles 19231 - 19260 of 20567
Full-Text Articles in Entire DC Network
Salt Loading From Efflorescence And Suspended Sediments In The Price River Basin, David S. Bowles, Hooshang Nezafati, Rao K. Bhasker, J. Paul Riley, R. J. Wagenet
Salt Loading From Efflorescence And Suspended Sediments In The Price River Basin, David S. Bowles, Hooshang Nezafati, Rao K. Bhasker, J. Paul Riley, R. J. Wagenet
Reports
Salinity control is a major component of water management in arid climates and irrigated areas and one of particular concern in the Colorado River Basin. The alts enter the water as it flows over land or moves through the soil or geologic formations. The principal salt collection processes are 1) dissolution from the soil surface during runoff events, 2) transpiration of soil water leaving salt residuals, 3) efflorescence left by evaporating seepage and then dissolved by subsequent runoff, 4) dissolution with weathering of fixed bed channels, 5) salts released by sediments entering the channel from sheet, gulley, and bank erosion, …
Energy Impacts Of Water Based Recreation, J. Clair Batty, David A. Bell, E. Bruce Godfrey, Craig Howell, J. Paul Riley, Thomas C. Stoddard
Energy Impacts Of Water Based Recreation, J. Clair Batty, David A. Bell, E. Bruce Godfrey, Craig Howell, J. Paul Riley, Thomas C. Stoddard
Reports
The overall objective of the study reported here was to determine to what extent energy accounting could supplement and/or complement economic benfit/cost analyses of water management projects and to specifically examine the energy impacts of water based recreation. The energy accounting literature was carefully reviewed and an energy accounting methodology applicable to water management was devised. Data pertaining to receation at five reservoirs in Utah were assembled from visitation recoreds and on-site surveys. Energy requirements for site construction, travel to and from the recreation site, and recreation at the site were estimated. It was determined that energy devoted to water …
Predicted Limnology Of The Proposed Ridges Basin Reservoir, Lawrence A. Baker, V. Dean Adams
Predicted Limnology Of The Proposed Ridges Basin Reservoir, Lawrence A. Baker, V. Dean Adams
Reports
A limnological evaluation was conducted for the offstream Ridges Basin Reservoir proposed by the Bureau of Reclamation in southwest Colorado. The study required the determination of existing water quality in the source river and use of the information to predict the algal standing crop, hypolimnetic oxygen deficity, Secchi disk transparency, and retention of metals in the proposed reservoir. A water quality study was conducted between May 1977 and August 1978. Samplse were collected from the Animas River, which will provide the inflow to the proposed reservoir, and from the La Plata River, which will receive discharge from the reservoir. Samples …
Development Of Contingency Plans And Scientific Background Studies For Applying Weather Modification During Drought Periods In Utah, David S. Bowles, Marjorie Frantz, Terry Glover, E. Arlo Richardson, Joe L. Sutherland
Development Of Contingency Plans And Scientific Background Studies For Applying Weather Modification During Drought Periods In Utah, David S. Bowles, Marjorie Frantz, Terry Glover, E. Arlo Richardson, Joe L. Sutherland
Reports
A multi-disciplinary study of drought in utah was conducted as a part of the Bureau of Reclamation's Southwest Drought Research Program. The study was administered by the Utah Division of Water Resources. Utah drought was investigated from a variety of viewpoints, including drought climatology, drought meteorology, hydrologic effects of drought, and economic effects of drought. A stand-by wintertime cloud seeding program was designed for all sections of the state. An economics model was then used to determine benfits to the state as a result of the seeding program.
Sprinkler Application Of So2 - Treated Groundwater At The Sandarosa Farm, Snowville, Utah, V. Dean Adams, Craig S. Criddle
Sprinkler Application Of So2 - Treated Groundwater At The Sandarosa Farm, Snowville, Utah, V. Dean Adams, Craig S. Criddle
Reports
Sulfur is recognized as one of the essential elements for plant growth. It has also been used in agriculture for reclamation of saline and sodic soils. During the reclamation process there is the potential benefit of increased availability of phosphorus and certain micro-nutrients for plant uptake. There is also potential for increased infiltration thus increasing water utilization efficiency.
Sulfur has been applied to soils in a flake or nodule form, by the addition of sulfuric acid and most recently by the application of sulfurous acid. The raw sulfur addition technique is accomplished by spreading raw sulfur on the soil and …
Effect Of Herbicides On Performance Of Aerobic Dairy Lagoons, John D. Bottom, Joseph L. Taraba
Effect Of Herbicides On Performance Of Aerobic Dairy Lagoons, John D. Bottom, Joseph L. Taraba
Biosystems and Agricultural Engineering Faculty Publications
The herbicides glyphosate, bromacil, and dalapon were assessed for their affect on the oxygen uptake of microorganisms from an aerated dairy lagoon at 20 °C. The maximum recommended addition of herbicide active ingerdient to a lagoon is: glyphosate (isopropyl amino salt)—0.42 mg/L; bromacil—3.70 mg/L; and dalapon (85.8 percent Na salt and 14.2 percent Mg salt)—1.95 mg/L. In addition, microorganism isolates from the aerobic dairy lagoon were incubated under aerobic and anerobic conditions at room temperature to assess the effects of the herbicides. Under aerobic incubation, it was found that neither herbicide type nor herbicide concentration affected isolate growth. Under anaerobic …
Restoring Natural Conditions In A Boreal Forest Park, Glen F. Cole
Restoring Natural Conditions In A Boreal Forest Park, Glen F. Cole
United States National Park Service: Publications
Voyageurs National Park is located in northern Minnesota (Figure 1). Its northern and eastern boundaries parallel a historic fur trade route that influenced the location of the boundary between the United States and Canada. About two-thirds of the park's 344-square-mile (891 km2) area is land, and the remainder is made up of numerous small and large lakes. The interspersion of forested land, massive rock outcrops and lakes make the park very scenic. It is also somewhat unique because it is the only U.S. park on the mainland in a southern boreal forest region. Isle Royale National Park is …
A Multiobjective Branch-And-Bound Method For Planning Wastewater And Residual Management Systems, Masahisa Nakamura, Suraj M. Alexander, James M. Riley, Robert Simon, Susan Meyer, Kenneth F. Bloemer
A Multiobjective Branch-And-Bound Method For Planning Wastewater And Residual Management Systems, Masahisa Nakamura, Suraj M. Alexander, James M. Riley, Robert Simon, Susan Meyer, Kenneth F. Bloemer
KWRRI Research Reports
A multiobjective branch-and-bound algorithm is proposed for use in analysing multiobjective fixed-charge network-flow problems which are found commonly in water resources planning situations. Also proposed is a multiobjective imputed value analysis which makes use of the branch-and-bound tree structure and allows the comparison of the importance of facilities in the network as represented by individual arcs or sets of arcs. The mathematical formulation and the analysis procedure of the method are described, and the potential usefulness of the method is demonstrated using two hypothetical example problems dealing with regional wastewater treatment and residual management systems. A FORTRAN program for implementing …
Synthetic Fuels For Transportation, W. M. Carriere, W. F. Hamilton, L. M. Morecraft
Synthetic Fuels For Transportation, W. M. Carriere, W. F. Hamilton, L. M. Morecraft
United States Department of Commerce: Staff Publications
The Office of Technology Assessment (OTA), at the request ofthe Senate Committee on Commerce, Science, and Transportation, initiated a comparative study of automobile fuel efficiency and the technology of alternative energy sources. The assessment, "Synthetic Fuels for Transportation," will be completed in early 1982. Included in that analysis are the assessment of automobile engines, other vehicle systems, and electric and hybrid vehicles.
This contractor report was prepared by the General Research Corp., under the direction of Dr. D. P. Maxfield, as technical input to the OTA study. It deals with electric and hybrid vehicle systems and their possible benefits and …
Water Current, Volume 14, No. 1, January/February 1982
Water Current, Volume 14, No. 1, January/February 1982
Water Current Newsletter
Phase II of Plan Completed
Powers Chairs Sandhills Task Force
Platte River Conference Topic
Conference Secretary Named
BN Backs Water Use Project
$75 Million for Nebaska Water
Notes from the Water Planner High Plains Research Released
Research Review: The Biological Regulation of Bloom-Causing Blue-Green Algae, A Feasible Alternative
Water Reuse Proceedings
OWRT Funded by FY 1982
OWRT Research Programs for 1982
Reduced Tillage Not for All
An Evaluation Of The Performance Of A Modified Overland Flow Wastewater Treatment System: Sloped Rock-Grass Filtration, Daria Wightman, Dennis B. George, John H. Zirschky, Daniel S. Filip, Judith Sims
An Evaluation Of The Performance Of A Modified Overland Flow Wastewater Treatment System: Sloped Rock-Grass Filtration, Daria Wightman, Dennis B. George, John H. Zirschky, Daniel S. Filip, Judith Sims
Reports
The effectiveness of a sloped rock-grass filtration system in treating municipal wastewater was tested on a 24 m by 36 m (80 ft by 120 ft) slope on a 2.5 percent grade sown with a mixture of rye grass, fescue grass, and bluegrass. The field was divided into six plots, each approximately 3.5 m wide and 36 m long. Three of the plots (slope-rock) were constructed with 9 m of gravel, 7.6 cm deep, on the upper reaches of the slope. Raw (screened, degritted) municipal wastewater from Hyrum, Utah, was applied to the slope-rock sections at application rates of 13 …
Catalytic Oxidation Of Sulfur Dioxide In Wastewater, Ernest J. Upton, V. Dean Adams
Catalytic Oxidation Of Sulfur Dioxide In Wastewater, Ernest J. Upton, V. Dean Adams
Reports
Sulfur dioxide has been shown to be an effective wastewater disinfectant. The aqueous sulfur dioxide creates and oxygen demand in the effulent which must be removed prior to discharge. Oxidation to sulfate is one means of accomplishing this task. Experiments were carried out to determine the effectiveness of transition metals and activated carbon as catalysts for the oxidation of S+IV species in wastewater. Both the metals and carbon are known catalysis, but what inhibitory effect the wastewater might have was unknown. Effectiveness was defined as a combination of catalyst life, effluent quality, and cost. Tradition metals were eliminated as potential …
A Chance-Constrained Programming Model Of Water Allocations In Utah, John E. Keith, Gustavo A. Martinez Gerstl, Rangesan Narayanan, Donald L. Snyder
A Chance-Constrained Programming Model Of Water Allocations In Utah, John E. Keith, Gustavo A. Martinez Gerstl, Rangesan Narayanan, Donald L. Snyder
Reports
A chance-constrained separable programming model of water allocations between agriculture and energy production was developed in order to examine the effect of the variability of water supplies in Utah. Using an incomplete gamma function, based on method of moments estimation of parameters, the water flows at 85, 90, and 95 percent probabilities of occurence were generated. These flows were then used as constraints in the allocation model. Results indicate that water quality could be a more significant constraint on irrigated agriculture than water quantity in the face of large scale energy development, and the variability of water availability alone is …
Delimitatin Of The Seaward Extent Of United States Jurisdiction Over The Mineral Resources Of Its Continental Shelf, Therese Anne Landry
Delimitatin Of The Seaward Extent Of United States Jurisdiction Over The Mineral Resources Of Its Continental Shelf, Therese Anne Landry
Marine Affairs Theses and Major Papers
This thesis provides a seaward delimitation of United States jurisdiction over the mineral resources of its continental shelf. It does not set lateral maritime boundaries between the United States and its neighbors. Despite the abundance of literature regarding the continental shelf concept, United States shelf limits have not been demarcated in any precise detail. In order to encourage efficient utilization of offshore mineral resources and to avoid unnecessary legal problems, such determination is important. Initially, the conflicting conceptions of the geological and legal continental shelf are discussed. The evolution of the continental shelf as both a physical feature of the …
A Methodology For Siting Coal Fired Thermoelectric Generating Facilities In Puerto Rico, David J. Mcmahon Ii
A Methodology For Siting Coal Fired Thermoelectric Generating Facilities In Puerto Rico, David J. Mcmahon Ii
Marine Affairs Theses and Major Papers
In the past, energy facilities on the Island of Puerto Rico have not been located in the best practicable sites. This is attributable to the absence of mandatory site selection procedures. This thesis has developed and tested procedures for siting 900 MWe coal fired thermoelectric generation plants. The procedures developed here permit the placement of these facilities within the existing legal regime, with a minimum of adverse ecological and socioeconomic impact. The process has been designed to consider the entire Island of Puerto Rico for the suitability of siting a 900 MWe coal fired facility. This is accomplished through the …
The Influence Of Salinity On Larval Development And Population Dynamics Of Anopheles Merus Dönitz (Diptera: Culicidae), F. W. Mosha, C. M. Mutero
The Influence Of Salinity On Larval Development And Population Dynamics Of Anopheles Merus Dönitz (Diptera: Culicidae), F. W. Mosha, C. M. Mutero
All Peer-Reviewed Publications
Variations in density of adults of Anopheles merus Dön. in Jimbo Village on the Kenya Coast were found to be correlated both with rainfall and with salinity at their breeding sites. Densities started to increase at the beginning of the rains when several breeding sites were formed. This was followed by a decline in numbers resulting mainly from the decrease in salinity in the semi-permanent breeding sites. A second rise occurred after the end of the rains, corresponding with an increase in salinity in the semi-permanent breeding sites due to evaporation. Peak density coincided with salinities of 30–50% sea water …
Volume 5, Number 12 (December 1981), The Solar Ocean Energy Liaison
Volume 5, Number 12 (December 1981), The Solar Ocean Energy Liaison
The OTEC Liaison
No abstract provided.
Volume 5, Number 11 (November 1981), The Solar Ocean Energy Liaison
Volume 5, Number 11 (November 1981), The Solar Ocean Energy Liaison
The OTEC Liaison
No abstract provided.
Characterization Of La Verkin Springs Water And Methods For Its Reuse In Energy Development, United States Department Of The Interior, Bureau Of Reclamation
Characterization Of La Verkin Springs Water And Methods For Its Reuse In Energy Development, United States Department Of The Interior, Bureau Of Reclamation
Water
Analytical water data obtained from a 9-month test program at the LVS (LaVerkin Springs) site, which is located in Washington County, Southwestern Utah, were evaluated. Fresh water and the water after processing through various pretreatment steps and after ED (electrodialysis) desalting and by desalting processes was demonstrated by the LVS site test program. The relative merit of different methods of treatment, disposal, and reuse of LVS water were studied. The objectives of the study were to evaluate methods for preventing high salinity LVS water from entering the Virgin River and for utilizing the processed water in energy development. The disposal …
Water Current, Volume 13, No. 6, November/December 1981
Water Current, Volume 13, No. 6, November/December 1981
Water Current Newsletter
Water Seminars Start in January
UNL Coordinates Three University Study of 1976-77 Drought Relief Program
1980 River Basin Proceedings Published
Water Planning Update
NWRC Staffer Now Fellow at UNL Great Plains Center
Research Review: Distribution of Nitrogen Under Native Range Cultivated Fields in the Nebraska Sandhills
Nebraska Could Add Muscle to Interstate Water Negotiations
Laws Prevent Use of Permit System in Nebraska's Sandhills
Fischbach Predicts Irrigation Scheduling Will Catch On
Comments Wanted on Newsletter Format
Commercial Exhibitors & Workshop Participants -- Fifth Great Plains Wildlife Damage Control Workshop
Commercial Exhibitors & Workshop Participants -- Fifth Great Plains Wildlife Damage Control Workshop
Great Plains Wildlife Damage Control Workshop Proceedings
A total of 10 firms and 120 people registered. They came from 30 states, the District of Columbia, and two Canadian provinces.
Urban Vertebrate Pest Management: A Practical Approach, Patricia A. Chamberlain, Milton Caroline, William A. Wright
Urban Vertebrate Pest Management: A Practical Approach, Patricia A. Chamberlain, Milton Caroline, William A. Wright
Great Plains Wildlife Damage Control Workshop Proceedings
Urban vertebrate pest management is influenced by a variety of factors. Public perceptions of wildlife limit control specialists in their methods of operation. Population density, costs of operation and timing of control are considered. Suggestions are made for operational mode, methods, baits, traps and disposal. Two new trapping concepts are described and experimental data on attractants are given. Computer-summarized data on urban wild life conflicts from one state (Texas) show that most complaints can be handled by extension methods supplemented with direct control by the public and wild life damage control specialists.
U.S. Fish And Wildlife Service Coyote Control Research, Guy Connolly
U.S. Fish And Wildlife Service Coyote Control Research, Guy Connolly
Great Plains Wildlife Damage Control Workshop Proceedings
This paper reviews recent research by the Denver Wildlife Research Center, Section of Predator Management Research, on chemical and lethal coyote control methods. Steel trap modifications, aerial shooting, den hunting, the M-44 (spring-loaded sodium cyanide ejector), toxic and nontoxic baits, the toxic collar, other livestock-borne toxicants, development of new toxicants, and aversive conditioning with lithium chloride are discussed. No new, lethal coyote control method has been implemented into practical use over the past decade, but toxic baits and den hunting were lost or banned from use in the Federal-Cooperative Animal Damage Control Program. One new technique, the toxic collar, may …
Controlling Problem Pocket Gophers And Moles, F. Robert Henderson
Controlling Problem Pocket Gophers And Moles, F. Robert Henderson
Great Plains Wildlife Damage Control Workshop Proceedings
Two small mammals, pocket gophers and moles, spend most of their lives underground and can cause a lot of concern and frustration to people above ground. The pocket gopher and mole, while engaging in their daily activities, leave their telltale marks on lawns and gardens, on golf courses, parks, cemeteries, and on alfalfa fields and rangelands. Sometimes they damage irrigation canals and dikes and chew into underground cables. They can also create root damage to young trees.
Opening Comments And Extension's Role In Nebraska, Leo E. Lucas
Opening Comments And Extension's Role In Nebraska, Leo E. Lucas
Great Plains Wildlife Damage Control Workshop Proceedings
I would like to echo Dr. Massengale's comments in welcoming you to Nebraska. We are pleased to have you here. Nebraska is a major agricultural state. Ninety-seven percent of the land is privately owned and most of it is in agricultural production of one type or another. Nebraska ranks fifth in total receipt sales of Ag products. Nebraska ranks second in the nation in numbers of cattle on feed, fourth in cash receipts from all livestock marketing, first in production of great northern beans, popcorn and alfalfa meal, and fourth in corn production. Agriculture is important to the state's economy.
Fifth Great Plains Wildlife Damage Control Workshop, Robert M. Timm, Ron J. Johnson
Fifth Great Plains Wildlife Damage Control Workshop, Robert M. Timm, Ron J. Johnson
Great Plains Wildlife Damage Control Workshop Proceedings
Proceedings Fifth Great Plains Wildlife Damage Control Workshop Contents
Outwitting The House Sparrow [Passer Domesticus (Linnaeus)], William D. Fitzwater
Outwitting The House Sparrow [Passer Domesticus (Linnaeus)], William D. Fitzwater
Great Plains Wildlife Damage Control Workshop Proceedings
With the decline of house sparrow populations during the first quarter of this century, control research attention shifted to other avian species so little new is available on either life history studies or management. Solutions to animal damage control problems are generally through (1) environmental controls, (2) protection of crops and/or sites, and (3) population reduction. In the case of sparrow problems, environmental controls are of limited application as the birds prefer the habitat modifications made by man. Protection of crops or sites relies on repellents which are generally ineffective against this particular species. The only viable population level controls …
Panel Discussion: Integrated Pest Management—A Viable Approach To Wildlife Damage Control?, Roger E. Gold Moderator
Panel Discussion: Integrated Pest Management—A Viable Approach To Wildlife Damage Control?, Roger E. Gold Moderator
Great Plains Wildlife Damage Control Workshop Proceedings
Questions & answers. Questioners and respondents include:
Roger E. Gold, Moderator
Robert M. Timm
Bill Ahlschwede
Rex E. Marsh
George Laidlaw
James Miller
Terry Salmon
Volume 5, Number 10 (October 1981), The Solar Ocean Energy Liaison
Volume 5, Number 10 (October 1981), The Solar Ocean Energy Liaison
The OTEC Liaison
No abstract provided.
Feasibility Study For A Beaver Reservoir Agricultural Water Supply Volume I, James Ferguson, Robert Shulstad, William Bateman
Feasibility Study For A Beaver Reservoir Agricultural Water Supply Volume I, James Ferguson, Robert Shulstad, William Bateman
Arkansas Water Resources Center Technical Reports
An irrigation district of approximately 30,000 acres has been proposed to be located in Washington and Benton Counties in Northwest Arkansas utilizing water from Beaver Reservior. This report on the economic benefits of such a district is done under contract No. DACW03-81-C for the U.S. Army Corps of Engineers by the Water Resources Research Center at the University of Arkansas.