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Articles 661 - 690 of 780
Full-Text Articles in Physical Sciences and Mathematics
The Law Of The Non-Navigational Uses Of International Watercourses: Draft Articles On Protection And Preservation; Harmful Conditions And Emergency Situations; And Protection Of Water Installations, Ved P. Nanda
The Law of International Watercourses: The United Nations International Law Commission's Draft Rules on the Non-Navigational Uses of International Watercourses (October 18)
52 pages.
Contains endnotes (pages 40-50).
Observations On The International Law Commission’S Draft Rules On The Non-Navigational Uses Of International Watercourses (Articles 1-4), Robert D. Hayton
Observations On The International Law Commission’S Draft Rules On The Non-Navigational Uses Of International Watercourses (Articles 1-4), Robert D. Hayton
The Law of International Watercourses: The United Nations International Law Commission's Draft Rules on the Non-Navigational Uses of International Watercourses (October 18)
14 pages.
Includes footnotes.
Protection And Preservation In International Watercourses, C. O. Okidi
Protection And Preservation In International Watercourses, C. O. Okidi
The Law of International Watercourses: The United Nations International Law Commission's Draft Rules on the Non-Navigational Uses of International Watercourses (October 18)
56 pages.
Contains 11 pages of footnotes.
“General Principles” And “Planned Measures” Provisions In The International Law Commission Draft Articles On The Non-Navigational Uses Of International Watercourses: A Mexican Point Of View, Alberto Szekely
The Law of International Watercourses: The United Nations International Law Commission's Draft Rules on the Non-Navigational Uses of International Watercourses (October 18)
18 pages.
Observations On The International Law Commission’S Draft Rules On The Non-Navigational Uses Of International Watercourses: “Management And Domestic Remedies", Sergei V. Vinogradov
Observations On The International Law Commission’S Draft Rules On The Non-Navigational Uses Of International Watercourses: “Management And Domestic Remedies", Sergei V. Vinogradov
The Law of International Watercourses: The United Nations International Law Commission's Draft Rules on the Non-Navigational Uses of International Watercourses (October 18)
46 pages.
Contains 11 pages of endnotes.
Distribution Of Terrestrially Derived Dissolved Organic Matter On The Southeastern United States Continental Shelf, Mary Ann Moran, Lawrence R. Pomeroy, Edward S. Sheppard, Larry P. Atkinson, Robert E. Hodson
Distribution Of Terrestrially Derived Dissolved Organic Matter On The Southeastern United States Continental Shelf, Mary Ann Moran, Lawrence R. Pomeroy, Edward S. Sheppard, Larry P. Atkinson, Robert E. Hodson
CCPO Publications
Dissolved lignin-derived compounds in seawater indicate the presence of organic matter originating from vascular plants and therefore from terrestrial (upland and coastal marsh) ecosystems. We used a hydrophobic resin to concentrate lignin-rich humic substances and to determine concentrations of lignin oxidation products (vanillyl lignin phenols) for waters of the continental shelf of the southeastern U.S. Lignin phenol concentrations ranged from 0.05 to 4.2µg liter‒1 and accounted for 0.002–0.13% of the total dissolved organic carbon (DOC) pool in continental shelf waters. Dissolved lignin concentrations were generally highest near the shore and in those areas receiving greatest river and marsh …
Conservation And Survey Division, 1991. Annual Outflow/Inflow Of Water From Nebraska, 1950-1990, Conservation Survey Divis
Conservation And Survey Division, 1991. Annual Outflow/Inflow Of Water From Nebraska, 1950-1990, Conservation Survey Divis
Conservation and Survey Division
No abstract provided.
A Spatial Analysis Of Variance Applied To Soil-Water Infiltration, C Gotway, Noel A. Cressie
A Spatial Analysis Of Variance Applied To Soil-Water Infiltration, C Gotway, Noel A. Cressie
Faculty of Informatics - Papers (Archive)
A spatial analysis of variance uses the spatial dependence among the observations to modify the usual interference procedures associated with a statistical linear model. When spatial correlation is present, the usual tests for presence of treatment effects may no longer be valid, and erroneous conclusions may result from assuming that the usual F ratios are F distributed. This is demonstrated using a spatial analysis of soil-water infiltration data. Emphasis is placed on modeling the spatial dependence structure with geostatistical techniques, and this spatial dependence structure is then used to test hypotheses about fixed effects using a nested linear model. -Authors
Significant Rises And Declines In Nebraska Groundwater Levels (From Pre-Development As Of Fall 1988) /Registered Irrigation Wells In Nebraska (As Of January 1, 1989), Conservation Survey Division
Significant Rises And Declines In Nebraska Groundwater Levels (From Pre-Development As Of Fall 1988) /Registered Irrigation Wells In Nebraska (As Of January 1, 1989), Conservation Survey Division
Conservation and Survey Division
No abstract provided.
Water Conservation Through Irrigation Technology, Donald H. Negri, John J. Hanchar, United States Department Of Agriculture, Economic Research Service
Water Conservation Through Irrigation Technology, Donald H. Negri, John J. Hanchar, United States Department Of Agriculture, Economic Research Service
All U.S. Government Documents (Utah Regional Depository)
Improved irrigation technology and advanced farm management practices offer an opportunity for agriculture to use water more efficiently. Farmers may install new equipment, such as drip irrigation systems, or adopt advanced water management practices to conserve water without sacrificing crop yields. While farmers' decision to adopt water-saving irrigation technology responds to the cost of water, physical properties of the land such as topography or soil properties of the land such as topography or soil texture dominate the choice of irrigation technology.
An Analysis Of The Water Situation In The United States: 1989-2040, Richard W. Guldin, Usda Forest Service
An Analysis Of The Water Situation In The United States: 1989-2040, Richard W. Guldin, Usda Forest Service
All U.S. Government Documents (Utah Regional Depository)
Several Federal agencies have historically had responsibilities for conducting assessments of the Nation's water resources. The U.S. Geological Survey (USGS), U.S. Army Corps of Engineers, U.S. Department of Agriculture's Soil Conservation Service (SCS), and U.S. Environmental Protection Agency (EPA) and its predecessor agencies, among others, have conducted studies assessing the current situation and future prospects for water in particular regions of the country. Responsibility for national water assessments was assigned to the U.S. Water Resources Council (WRC) by the Water Resources Planning Act of 1965. With the demise of the WRC in 1981, several member agencies have attempted to take …
Allocating Groundwater Among Nations, States And Tribes, Ann Berkley Rodgers, Carolyn J. Abeita
Allocating Groundwater Among Nations, States And Tribes, Ann Berkley Rodgers, Carolyn J. Abeita
Boundaries and Water: Allocation and Use of a Shared Resource (Summer Conference, June 5-7)
70 pages.
Agenda: Boundaries And Water: Allocation And Use Of A Shared Resource, University Of Colorado Boulder. Natural Resources Law Center
Agenda: Boundaries And Water: Allocation And Use Of A Shared Resource, University Of Colorado Boulder. Natural Resources Law Center
Boundaries and Water: Allocation and Use of a Shared Resource (Summer Conference, June 5-7)
Conference organizers and/or faculty included University of Colorado School of Law professors David H. Getches, Lawrence J. MacDonnell and Charles F. Wilkinson.
Boundaries and Water: Allocation and Use of a Shared Resource is the topic of the Center's annual summer program on water this June. Most of the major rivers in the western United States are shared between two or more states. Often tribal governments play an important role in water allocation and use decisions. International considerations also may be involved in some cases. These interjurisdictional issues extend to groundwater as well as surface water.
This conference will provide the …
Condensation Coefficient Measurement For Water In The Umr Cloud Simulation Chamber, Donald E. Hagen, John L. Schmitt, Max B. Trueblood, John C. Carstens, Daniel R. White, Darryl J. Alofs
Condensation Coefficient Measurement For Water In The Umr Cloud Simulation Chamber, Donald E. Hagen, John L. Schmitt, Max B. Trueblood, John C. Carstens, Daniel R. White, Darryl J. Alofs
Physics Faculty Research & Creative Works
A systematic series of condensation coefficient measurements of water have been made using the University of Missouri-Rolla cooled-wall expansion chamber which simulates the thermodynamics of cloud. This coefficient is seen to decrease from a value near unity, at the outset of simulation, to a value in the neighborhood of 0.01 toward the end of a simulation. Final values of this coefficient are sufficiently low as to contribute significantly to the broadening of the drop-size distribution in cloud.
Catchment Salinity : Report On A Study Of The East Perenjori Catchment, C J. Henschke
Catchment Salinity : Report On A Study Of The East Perenjori Catchment, C J. Henschke
Resource management technical reports
Dryland secondary salinisation has debilitated large areas of land in Western Australia due to clearing of native vegetation for agricultural development. The initial aim of the project (which is the subject of Part I of this report) was to establish a landscape framework for hydrogeological examination of the salinity problem. A catchment of 139 km2, located 30 km east of Perenjori townsite was selected for detailed study. It was mapped for soils, vegetation, topography, landform and salinity using both old and recent aerial photography. A field survey of soil hydraulic conductivity was undertaken to help define recharge areas. Soil-vegetation associations …
Hydrographic Variability Of Southeastern United States Shelf And Slope Waters During The Genesis Of Atlantic Lows Experiment: Winter 1986, Larry P. Atkinson, Eiichi Oka, Sunny Y. Wu, Thomas J. Berger, Jackson O. Blanton, Thomas N. Lee
Hydrographic Variability Of Southeastern United States Shelf And Slope Waters During The Genesis Of Atlantic Lows Experiment: Winter 1986, Larry P. Atkinson, Eiichi Oka, Sunny Y. Wu, Thomas J. Berger, Jackson O. Blanton, Thomas N. Lee
CCPO Publications
Continental shelf waters are particularly responsive to winter storm events mainly because of their shallow depths. Those of the southeastern United States (the South Atlantic Bight (SAB)) are especially responsive because they are broad and shallow. Also, the Gulf Stream serves as a continual source of warm water at the outer boundary. Thus the SAB receives strong meteorological (wind stress and heat loss) and oceanographic (advective) forcing. During the Genesis of Atlantic Lows Experiment (GALE) the response of shelf waters to winter storm events and Gulf Stream forcing was observed. The mean conditions showed a mixed water column with areas …
Temperature And Supersaturation Dependent Nucleation Rates Of Water By Molecular Cluster Model Calculations, Sung-Ho Suck Salk, Chen K. Lutrus, Donald E. Hagen
Temperature And Supersaturation Dependent Nucleation Rates Of Water By Molecular Cluster Model Calculations, Sung-Ho Suck Salk, Chen K. Lutrus, Donald E. Hagen
Physics Faculty Research & Creative Works
Using a microphysical approach to nucleation, we present an extensive study of water nucleation rates for wide ranges of both temperature and supersaturation ratio. Based on the fundamental molecular properties of clusters instead of bulk properties, the microphysical approach is demonstrated to predict good agreement with measured nucleation rates over this broad range of conditions. Predicted critical sizes for nucleation are found to be relatively small, and are in the molecular cluster size regime rather than in a size regime that should be characterized by bulk values. Estimated sticking coefficient values cover the range of ~0.9 to ~0.2 for the …
Hydrogeology Of Garfield And Wheeler Counties, Nebraska, Dennis R. Lawton, Robert A. Hiergesell
Hydrogeology Of Garfield And Wheeler Counties, Nebraska, Dennis R. Lawton, Robert A. Hiergesell
Conservation and Survey Division
No abstract provided.
Reactions Of Organic N-Chloramines In The Gastric Fluid Of The Rat, Kathryn E. Mazina
Reactions Of Organic N-Chloramines In The Gastric Fluid Of The Rat, Kathryn E. Mazina
Chemistry & Biochemistry Theses & Dissertations
Using chlorine as a drinking water disinfectant may have potential health effects due to its reactivity with organic amino nitrogen compounds found in the stomach. Organic N-chloramines have been shown to form in the stomachs of laboratory rats. The possible reactions of N-chloramines in the stomach fluid were examined in this study using a model radiolabeled N-chloramine. 36Cl-N-Chloropiperidine, was synthesized and purified to remove 36Cl-chloride. Stomach fluid was obtained from Sprague-Dawley rats which had been first fasted for 24 or 48 hours and then administered 3 mL of deionized water. Different concentrations of radiolabeled chloramine were reacted with …
Lands Of Brighter Destiny: The Future Of The Public Lands, Elizabeth Darby Junkin
Lands Of Brighter Destiny: The Future Of The Public Lands, Elizabeth Darby Junkin
The Public Lands During the Remainder of the 20th Century: Planning, Law, and Policy in the Federal Land Agencies (Summer Conference, June 8-10)
4 pages.
Livestock Grazing On Public Lands: Procedures And Issues, E. T. Bartlett
Livestock Grazing On Public Lands: Procedures And Issues, E. T. Bartlett
The Public Lands During the Remainder of the 20th Century: Planning, Law, and Policy in the Federal Land Agencies (Summer Conference, June 8-10)
17 pages.
Contains references.
Progress And Problems In National Forest Planning, Jeff M. Sirmon
Progress And Problems In National Forest Planning, Jeff M. Sirmon
The Public Lands During the Remainder of the 20th Century: Planning, Law, and Policy in the Federal Land Agencies (Summer Conference, June 8-10)
17 pages.
Basic Fertilizer Facts, Monroe Rasnake
Basic Fertilizer Facts, Monroe Rasnake
Soil Science News and Views
The "foods" used by green plants for growth and life functions are referred to as nutrients or fertilizer elements. There are 16 nutrients required for plant growth and development (See Table l). Although carbon, hydrogen, and oxygen are found in plants in the greatest quantities. they are obtained by plants from air (carbon dioxide) and water rather than from fertilizers or the soil. Of the nutrients provided by the soil or from fertilizers. those required in large amounts are called PRIMARY nutrients. Those required in smaller amounts are called SECONDARY nutrients, while those needed in very small amounts are called …
A Robust-Resistant Spatial Analysis Of Soil Water Infiltration., Noel A. Cressie, R Horton
A Robust-Resistant Spatial Analysis Of Soil Water Infiltration., Noel A. Cressie, R Horton
Faculty of Informatics - Papers (Archive)
Concentrates on estimating the spatial correlations between soil water infiltration observations, with special emphasis on resistant methods to remove nonstationarity. After this removal, robust semivariogram estimators are used to examine the spatial dependencies for various tillage treatments. There is some indication that infiltration characteristics inherit different types of spatial dependency, depending on the tillage treatment applied.-from Authors
Consumption Of Water By Livestock, G J. Luke
Consumption Of Water By Livestock, G J. Luke
Resource management technical reports
No abstract provided.
Correction Of The Basis Set Superposition Error In Scf And Mp2 Interaction Energies. The Water Dimer, M. M. Szczesniak, Steve Scheiner
Correction Of The Basis Set Superposition Error In Scf And Mp2 Interaction Energies. The Water Dimer, M. M. Szczesniak, Steve Scheiner
Chemistry and Biochemistry Faculty Publications
There has been some discussion concerning whether basis set superposition error is more correctly evaluated using the full set of ghost orbitals of the partner molecule or some subset thereof. A formal treatment is presented, arguing that the full set is required at the Møller–Plesset level. Numerical support for this position is provided by calculation of the interaction energy between a pair of water molecules, using a series of moderate sized basis sets ranging from 6‐31G∗∗ to the [432/21] contraction suggested by Clementi and Habitz. These energies, at both the SCF and MP2 levels, behave erratically with respect to changes …
Annual Outflow/Inflow Of Water From Nebraska, 1950-1985, Conservation And Survey Division
Annual Outflow/Inflow Of Water From Nebraska, 1950-1985, Conservation And Survey Division
Conservation and Survey Division
No abstract provided.
Annual Outflow Of Water From Nebraska, 1950-1985, Conservation Survey Division
Annual Outflow Of Water From Nebraska, 1950-1985, Conservation Survey Division
Conservation and Survey Division
No abstract provided.
Soil Water And Temperature In Harvested And Nonharvested Pinyon-Juniper Stands, United States Department Of Agriculture, Forest Service
Soil Water And Temperature In Harvested And Nonharvested Pinyon-Juniper Stands, United States Department Of Agriculture, Forest Service
Forestry
Tree harvesting increased soil water content, but the effect diminished over 4 years. The mean increase in soil water content was 2 to 4 percent the first year following harvest and 0 to 3 percent after 4 years. Although tree harvesting released soil water previously used by tree species, other biotic and abiotic demands increased. We speculate postharvest increases in wind and solar energy at the ground surface and increased understory transpiration in part explain the decline in soil water content differences between harvested and nonharvested plots over time.
Concentration Of Nitrate-Nitrogen In Groundwater Central Platte Region, Nebrask 1984, M. E. Exner
Concentration Of Nitrate-Nitrogen In Groundwater Central Platte Region, Nebrask 1984, M. E. Exner
Conservation and Survey Division
No abstract provided.