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Now showing items 14421-14430 of 17238
Freshwater Community Responses to Mixtures of Agricultural Pesticides: Synergistic Effects of Atrazine and Bifenthrin
(Texas Water Resources Institute, 1991-04)
This study was an investigation of the effects of the herbicide atrazine and the insecticide bifenthrin on lake communities. The study was conducted in two phases: in phase one, we examined the effects of environmentally ...
Water Conservation with Urban Landscape Plants
(Texas Water Resources Institute, 1983-08)
Water shortages are a common problem in much of the southwest. Increasing urbanization and increasing population places greater demands on dwindling water supplies. Over half of the water used in urban areas of the southwest ...
Sprinkler Irrigation as an Energy and Water Saving Approach to Rice Production and Management of Riceland Pests
(Texas Water Resources Institute, 1985-03)
Rice is currently produced on approximately 400,000 acres in the Texas Coastal Prairie. This rice consumes 1.8 million acre-feet of water a year or 13 percent of Texas' renewable water resources. The Texas Coastal Prairie ...
Stochastic Modeling of the Rainfall Runoff-Process for Nonpoint Source Pollutant Load Estimation
(Texas Water Resources Institute, 1989-12)
A stochastic simulation methodology was developed for the rainfall-runoff process to assist in the assessment of nonpoint source pollutant loads, particularly for ungauged watersheds where there is a scarcity or complete ...
Recursive Programming Model for Crop Production on the Texas High Plains
(Texas Water Resources Institute, 1984-02)
A flexible, recursive programming model of crop production on the Texas High Plains was developed. Besides the linear programming (LP) Optimization routine and recursive feedback section, the model also includes a matrix ...
Design, Analysis, And Testing Of High Performance Bearings In A High Speed Integrally Geared Compressor.
(Texas A&M University. Turbomachinery Laboratories, 1994)
Analysis, design, and optimization of high performance journal and thrust bearings in a high speed integrally geared compressor are described. The high speed and relatively small bearing size stretches the applicable limits ...
REMOVAL AND FATE OF SPECIFIC MICROBIAL PATHOGENS WITHIN ON-SITE WASTEWATER TREATMENT SYSTEMS
(Texas Water Resources Institute, 2003-05)
Untreated or improperly treated wastewater has often been cited as the primary
contamination source of groundwater. Decentralized wastewater treatment systems have
applicability around the world since it obviates the ...
Geographic Visualization of the 1993 Midwest Flood Water Balance
(Texas Water Resources Institute, 2003)
This report documents the construction of three visualization projects based on
hydrologic modeling of the 1993 Midwest flood. The modeling procedures and results
have been described in “Water Balance of the 1993 Midwest ...
Considerations And Issues In The Replacement Of A Centrifugal Compressor Train.
(Texas A&M University. Turbomachinery Laboratories, 1994)
The successful justification, design, installation, and commissioning of new major machinery in an existing petrochemical plant requires special consideration of many issues. This is particularly true in instances where ...
Analysis And Testing Of The Leg Tilting Pad Journal Bearing - A New Design For Increasing Load Capacity, Reducing Operating Temperatures And Conserving Energy.
(Texas A&M University. Turbomachinery Laboratories, 1994)
The repair of a turbine-compressor-expander to improve its mechanical reliability is described. The machine is unique, with two open-faced centrifugal compressor impellers in the center, three steam turbine stages overhanging ...