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Annotated Biobliography Of Remote Sensing For Highway Planning And Natural Resources, An, Daniel L. Civco, William C. Kennard, Michael Wm. Lefor

Storrs Agricultural Experiment Station

No abstract provided.

Crystal And Molecular Structures Of Organophosphorus Insecticides. 13. S-Isopropyl 0-Methyl 0-(3,5,6-Trichloro-2-Pyridyl) Phosphoramidothioate And Dimethoate, Rick L. Lapp, Robert A. Jacobson

United States Department of Energy: Publications

The crystal and molecular structures of S-isopropyl O-methyl O-(3,5,6-trichloro-2-pyridyl) phosphoramidothioate, C₉H₁₂N₂O₂PSC1₃, and dimethoate [ O,O-dimethyl S-(N-methylcarbamoyl)methyl phosphorodithioate], C₅H_I2NO₃PS₂, have been determined by three-dimensional X-ray analysis. The former compound crystallizes in the triclinic space group P1 with a = 10.319 (5) Å, b = 10.730 (6) Å, c = 8.44 (4) Å, a = 99.01 (2)°, β = 114.02 (l)°, and y = 62.64 (1)° with Z = 2, and the latter compound crystallizes in the monoclinic space group P2_{1 …}

The Limnological Status Of Lake Mead And Lake Mohave Under Present And Future Powerplant Operations Of Hoover Dam, Larry J. Paulson, John R. Baker, James E. Deacon, U.S. Water And Power Resources Service

Publications (WR)

The ever-increasing demand for energy in the southwest has led to a search for additional sources of power generation. Coal-fired powerplants currently provide most of the baseline energy in the southwest, but this must be supplemented with hydroelectric power during periods of peak demand. In order to provide additional peaking power, the U.S. Bureau of Reclamation is considering a number of projects to modify existing hydroelectric facilities, or add new facilities in the Lake Mead Recreation Area. The Hoover Powerplant Modification Feasibility Investigation was authorized by Congress on December 16, 1975 to determine the feasibility of: (i) adding one or …

Principles Of Lake Quality Management, D. B. Porcella

Reports

No abstract provided.

Development Of Procedures To Evaluate Salinity Management Strategies In Irrigation Return Flows, V. A. Narasimhan, A. Leon Huber, J. Paul Riley, J. J. Jurinak

Reports

The salinity added irrigation return flows is a major problem in rivers draining agricultural lands throughout the arid regions of the world, and many irrigation water management alternatives have been proposed for reducing downstream salinity problems. The merits of these alternatives, however, can only be judged from reliable information on their actual effects on the salinity in rivers receiving the drainage water and the water withdrawn from the river by downstream users. Hydrosalinity models are widely used to estimate these effects to guide the selection of a policy on management of irrigation return flows. The purpose of this research was …

Alteration Of Microbial Populations In Surface Mine Revegetation And Their Effects On Nitrogen Cycling, Margaret Mary Mccarthy

Reports

Surface mining in the arid west results in soil disruption by alterning structure, water-holding capacity and nutrient availability. Intensive revegetation efforts may end in marginal rehabilitation due to adverse chamical and physical properties of the distrubed soil. Monitoring microbial activitiy and soil chemistry of revegetated and undisturbed areas of a surface mine in Southeastern Montana enabled delineation of major factors participating in soil fertility were determined. In the undisturbed site, the upper few centimeters of the soil profile contained most of the nutrients and the microbial populations. In the revegetated sites, due to mixing of various soil horizons, the concentration …

Flood Damage Mitigation In Utah, L. Douglas James, Dean T. Larson, Daniel H. Hoggan, Terrence L. Glover

Reports

Utah is subjected to flash flooding in mountain canyons, mudflows and shallow water flooding on lowlands at the canyon outlets, storm water flooding after thunderstorms in urban areas, and prolonged periods of inundation in certain lowland areas during snowmelt periods. In response to these problems, individuals are making private land use and flood proofing decisions, larger communities have storm water collection programs, three federal agencies are involved in structural flood control, and the Federal Emergency management Agency is managing a National Flood Insurance Program designed to promote community floodplain management efforts. A framework was deceloped of the dynamically interactive feedback …

Evaluation Of Mutagenicity Testing Of Extracts From Processed Oil Shale, Judith G. Dickson, V. Dean Adams

Reports

The Ames/

Utah Surface Impoundment Assessment Report, Mary L. Cleave, V. Dean Adams, Donald B. Porcella

Reports

Executive Summary: The Surface Impoundment Assessment process presented an organized consistent systme for evaluating potential threats to groundwater resources from surface impoundments of wastes. This assessment established a data base which locates wastes surface impoundments in Utah and assesses the majority of these impoundments with this prescribed system (Appendix F). This data base may be used to identify surface impoundments in Utah which may create problems with regard to groundwater contamination. Data Summary: The potential hazards of the surface impoundments assessed to groundwater is based on two values established during the assessment procedure. These values are identified as the pollution …

Feasibility Study Of Establishing A Water Rights Banking/Brokering Service In Utah, Jay M. Bagley, Kirk R. Kimball, Lee Kapaloski

Reports

Changes in water use patterns are an inevitable consequence of relentless social transformations taking place. Especially where waters have been fully appropriated, the needs of a dynamic society must be met through transfers in water ownership. Yet, there are a variety of factors that may operate as impediments to the shifting of water according to social preferences as expressed through water markets. As a mechanism for facilitating water transfers, exchagnes, or rentals, the concept of "water banking" and "water brokering" may be fruitful. This repot appraises the potential for initiating and operating such a service within the legal, institutional, and …

Evaluation Of Livestock Runoff As A Source Of Water Pollution In Northern Utah, Stephen T. Wieneke, Dennis B. George, Daniel S. Filip, Brad Finney

Reports

A mathematical model was developed to predict the impact of dairy and beef cattle feedlot runoff on receiving streams. The mathematical expressions used in the model describing runoff quantity and quality were not only a function of single rain or snow precipitation events but also consecutive events prior to the runoff occurrence. The runoff quantity and quality were also a function of feedlot surface. Computer simualtions indicate that pollutants from feedlot runoff may have a significant impact on receiving streams during winter months. Runoff from feedlots located within the study area, however, had little impact on water quality in the …

Nominal Molecular Weight Distributions Of Color, Toc, Tthm, Precursors And Acid Strength In A Highly Organic Potable Water Source, Jalil Fouroozi

Retrospective Theses and Dissertations

This research investigated the relationships between molecular size and the TOC, TTHM, acid strength and color concentrations present in raw and coagulated water from Lake Washington. Three separate coagulants were utilized for investigation. There were: Al, Fe and Mg. Results indicated that the majority of the TOC, color and TTHM precursors were in the colloidal size range and removed by coagulation. The remaining TTHM precursors are mostly molecular and require a process other than coagulation for removal from the potable water before environmental standards are met.

Influence Of Unsaturated Hydraulic Properties On Infiltration From Circular Surface Areas, Abdolhossien Nassehzadeh-Tabrizi, Roland W. Jeppson

Reports

The effects and interactive effects on infiltration of parameters in the Brooks-Corey equation for defining the hydraulic properties of unsaturated soils are investigated by analyzing the results of numerical solutions of the unsaturated flow characteristics resulting from water applied on a circular surface area. The soil parameters are allowed to vary continuously as a function of depth. The parameters that have been allowed to vary separately and in pairs are: (1) The pore size distribution exponent, (2) Pb- The bubbling pressure, (3) Sr- The residual saturation, (4) n- The soil porosity and (5) Ko- The saturated hydraulic conductivity. The conclusions …

Calcium Migration In Dense Alumina Aged In Water And Physiological Media, Heidi H. Osterholm

Masters Theses

"The flexural strength and relative Ca concentration at the external surface were measured for a dense alumina aged in deionized water and Ringer's solution at 40⁰C for 60 weeks and at 80⁰C for 45 weeks. Changes in the Ca concentration at the external surface and flexural strength during aging were attributed to the dissolution of the calcium impurity believed to be present in a glass phase of unknown composition. Auger electron spectroscopy was used to investigate the relative concentration of the calcium impurity at the external and fracture surfaces of a dense alumina after in vivo exposure for 6, 12 …

Therapeutic Indices For Transchest Defibrillator Shocks: Effective, Damaging, And Lethal Electrical Doses, Charles F. Babbs, Willis A. Tacker, John F. Vanvleet, Joe D. Bourland, Leslie A. Geddes

Weldon School of Biomedical Engineering Faculty Publications

Although prospective studies of defibrillator shock overdose cannot be performed in man, the therapeutic indices of various defibrillating current waveforms can be measured in animals. We determined the ratios TD50/ED50 and LD50/ ED50 (where TD50 = median "toxic" or damageinducing dose, ED50 = median effective or defibrillating dose, and LD50 = median lethal dose) as measures of the therapeutic index for damped sine wave defibrillator shocks in dogs. Death of an animal and/or any degree of cardiac damage found by gross or microscopic examination were defined as harmful effects of shock, analogous to drug toxicity. In terms of peak current, …

Final Environmental Impact Statement Missouri National Recreational River Nebraska And South Dakota

United States Army Corps of Engineers, Omaha District

The Missouri River from Gavins Point Dam to Ponca State Park, Nebraska, is one of the few remaining relatively natural, braided reaches of the Missouri River. The Corps of Engineers and the Heritage, Conservation, and Recreation Service have investigated public concerns related to streambank erosion control and recreational development along this river reach. Two plans were initially considered and one was selected for detailed study. The selected plan consists of development of the river reach as a recreation river under the Wild and Scenic Rivers Act. This plan would meet all streambank erosion control and recreational development needs and would …

Flora And Fauna A Biliography With Abstracts Or Partial Summaries

United States Army Corps of Engineers, Omaha District

The Missouri River from Gavins Point Dam to Ponca State Park, Nebraska was designated, on 10 November 1978, a National Recreational River. The purpose of the designation is to preserve and protect the river reach and to make its resources available for public use.

The Secretary of the Interior has been mandated to administer the river. Acting through the Assistant Secretary for Fish, Wildlife, and Parks, the Secretary of the Interior has entered into a written cooperative agreement with the Secretary of the Army (acting through the Chief of Engineers) to provide for construction and maintenance of erosion control work …

Design Of Vegetative Filters For Feedlot Runoff Treatment In Humid Areas, D. H. Vanderholm, Elbert C. Dickey

Department of Agricultural and Biological Systems Engineering: Faculty Publications

The vegetative filter approach uses overland flow or shallow channelized flow to treat feedlot runoff by infiltration, dilution and filtration. Based on extensive monitoring of four field systems in Illinois over a two year period, acceptable performance standards were selected. Design criteria to meet the standards were developed for both the overland flow vegetative filters and the channelized or serpentine terrace filters. A major design criterion for both types of vegetative filters is the time required for applied runoff to flow the length of the filter.

An alternative to using zero-discharge treatment systems to control feedlot runoff is to replace …

Home Sewage Treatment Systems, Elbert C. Dickey, Robert P. Pharris, Phillip W. Harlan, Gary Hosek

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Homeowners in areas not served by municipal sewage treatment systems face a problem of providing safe and effective wastewater treatment systems for their homes.

There are several methods currently available for proper treatment of home sewage, including septic tank absorption fields, mounds, lagoons, aerobic treatment units and others. These systems and their advantages and disadvantages are discussed in this NebGuide.

Treatment and disposal of domestic sewage is of concern because of the variety of pathogenic organisms contained in sewage. These include bacteria, viruses, and other microorganisms that come from the digestive tract, respiratory tract, and skin of man. Some of …

Influence Of Dredging And High Discharge On The Ecology Of Black Canyon, Larry J. Paulson, Theron G. Miller, John R. Baker, U.S. Water And Power Resources Service

Publications (WR)

The Water and Power Resources Service is considering dredging in Black Canyon to create a larger forebay to accommodate higher peak discharges and reverse flows for proposed modifications to Hoover Dam. The Black Canyon area from Hoover Dam to Willow Beach supports a heavily utilized trout fishery and is important habitat for the razorback sucker (Xyrauchen texanus) and possibly bonytail chub (Gila elegans). The Water and Power Resources Service initiated this investigation to determine what effect dredging and higher peak-discharges would have on the ecology of Black Canyon.

Development And Verification Of A Laboratory Model For Use In The Study Of A Continuous Flow Pressurized Activated Sludge Process, Wayne Frederick Nolte

Dissertations

Investigations concerning the responses of domestic wastewater treated at elevated pressures have demonstrated an acceleration in the rate of biological assimilation of the waste material. The literature is not extensive, but presents much conflicting data. There has been a lack of a coherent approach to the investigation of pressure in wastewater treatment. This demonstrates the need for standard testing apparatus and procedures.

A bench scale pressurized activated sludge process was designed and constructed. The apparatus was tested over a broad range of conditions and was found to give reproducible results. Kinetic responses of the pressurized process are presented.

Computer Assisted Instruction Wood Identification Program, Dave Moyer

Graduate Research Papers

In the development of wood identification skills, certain factors are important. These include: mastery of both terminology and technique, repetitive practice experiences, and an individualized approach in both guidance and feedback to the learner. The use of the computer as a programmed instructional aid provides for an individualized approach to learning, simulated teacher-student interaction, and feedback and reinforcement to stimulate learning. The problem of this activity is to develop a computer assisted instructional program to enable the learning of techniques for identifying selected samples of hardwoods.

Separations Of Dilute Solutions By The Smooth Deposit Approach Of The In-Situ Indirect Freezing Process, Jeng-Hung Lue

Chemical and Biological Engineering ETDs

The main objective of the present study is to demonstrate experimentally the feasibility of applying the smooth deposit ap­proach of the in-situ indirect freezing process to the separations of both dilute organic mixtures and aqueous mixtures. The in-situ indirect freezing process with in-situ washing and melting opera­tions was first introduced by C. Y. Cheng and S. W. Cheng [1].

Center Pivot Irrigation In Nebraska: An Institutional Analysis Case Study, Thomas Nutt-Powell, Stewart Landers

Department of Agricultural and Biological Systems Engineering: Faculty Publications

This paper is one of a series resulting from institutional analysis of photovoltaic (PV) acceptance. It reports the results of a study of institutional factors influencing acceptance of center-pivot irrigation in the Nebraska agricultural community. Center-point irrigation (CP) was an interesting topic for study because (1) it was a major recently introduced technological innovation in agriculture which (2) had potentially detrimental attributes – water and energy intensity. A brief historical review of the introduction and acceptance of center-pivot irrigation in the Nebraska agricultural community is presented. Institutions which were a likely part of this institutional arena relative to CP introduction …

Adsorption Capabilities Of Adsorbents For Selected Toxic Air Pollutants, Richard Michael Vaccaro

Theses

The relative adsorption capacities of seven toxic, volatile organic air pollutants of either proven or suspected carcinogenic potential were tested on various adsorbents. Tests were run at flow velocities similar to those set in field sampling. This allows for extrapolation of test results to actual ambient air sampling systems. Experimentation was performed using a gas chromatograph (G.C.) equipped with a flame ionization detector. Sample introduction was carried out using the "displacement method" where the sample is introduced to the adsorbent cartridge as a plug.

Incipient elution volumes (V_N), normalized for bulk adsorbent packing volume, were obtained at various …

Economics Of Ethanol Production From Agricultural Residues, Oliver C. Sitton, G. L. Foutch, Neil L. Book, J. L. Gaddy

UMR-DNR Conference on Energy

No abstract provided.

Ecological Responses Of Lake Eola To Urban Runoff, Harvey H. Harper Iii

Retrospective Theses and Dissertations

Lake Eola is a land-locked lake located in downtown Orlando, Florida. Its surface area is approximately 27.0 acres (11.0 Ha) and water depth is 2 to 3 feet (0.6 to 0.9 meters) near the shore and 22 feet (6.7 meters) toward the center. Periodical water samples were collected from the lake and storm drains for various stormwater events and physiochemical parameters were analyzed to calculated loading rates from nutrients and heavy metals released to Lake Eola. Algal bioassay studies were performed to investigate stormwater impacts on productivity. Periodical water samples were collected from the lake mixed and filtered for limiting …

The Effect Of Ozone On Trihalomethane Precursors In Raw And Magnesium Treated Lake Washington Water, James Kent Kimes

Retrospective Theses and Dissertations

A bench scale laboratory ozonator was constructed and determined to produce 27 mg O3/hr. A contacting system and experimental procedure was developed to approximate a mass balance of 0, 1, 2, 4, 8 and 16 ppm were applied to raw and magnesium treated water from Lake Washington which is the potable water source for Melbourne, Florida. The effect of ozone on trihalomethane precursors was studied by comparing THM formation at 1, 24, 48, 72, and 96 hours following chlorination. The concentrations of each specie, chloroform, bromodichloromethane, dibromochlormethane and bromoform are reported. The highest 96 hour TTHM concentrations reported were 2773 …

A Pressure Injection Device For Inoculation Of Maize With Bacterial Phytopathogens, Randall R. Carlson, A. K. Vidaver, David S. Wysong, J. H. Riesselman

Biological Process Development Facility: Staff Publications

A pressure injection device (PID) was used to inoculate maize (Zea mays) with bacterial phytopathogens. The PID was evaluated for its speed, effectiveness, and precision relative to the needle-eye method of inoculation. Corynebacterium nebraskense, Erwinia stewartii, and Pseudomonas andropogonis were each used successfully as inocula to infect maize and produce symptoms typical of Goss's wilt, Stewart's wilt and bacterial stripe, respectively. Quantitative inoculation with the PID was faster and as statistically precise as using a calibrated needle-eye.

A Preliminary Investigation Of Physical-Chemical Treatment Of Slagging Gasifier Aqueous Effluent, Kirk B. Hird

Theses and Dissertations

The feasibility of treating slagging gasifier wastewater by physical-chemical means was studied. Pretreatment and treatment flow schemes were developed by using batch and continuous tests. Results were based mainly on wastewater residual total organic carbon (TOC). A treatment facility was designed and economically evaluated.

It was found that slagging gasifier wastewater is treatable by physical-chemical means using activated carbon and chemical oxidation as the two principal treatment steps. A pretreatment scheme consisting of lime addition, ammonia stripping, and recarbonation-coagu- lation was found to sufficiently purify the raw gasifier liquor so that activated carbon adsorption and chemical oxidation could be applied …