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Effects Of Oil Shale Leachate On Phytoplankton Productivity, Mary Louise Cleave, V. Dean Adams, Donald B. Porcella

Reports

The effects of oil shale leachate and salinity additions on the productivity of freshwater algae were studied in the laboratory using batch bioassays. These batch bioassays were used to screen variations of ten salts in single and multiple additions of all possible combinations of the ten salts; water extractions of different processed and unprocessed oil shales; and the concentration effects of both the salts from 0.3 N to 0.05 N as NaCl and the oil shale extractions on the growth of standard test algae and indigenous algae from Lake Powell. The batch bottle bioassays were conducted following the standard algal …

Pre-Impoundment Water Quality Study For The Dolores Project, Larry Baker, V. Dean Adams, Leslie G. Terry, Jerald S. Fifield, Darwin L. Sorensen

Reports

No abstract provided.

Pre-Impoundment Water Quality Study For The Mc Elmo Project, Larry Baker, V. Dean Adams, Leslie G. Terry, Jerald S. Fifield, Darwin L. Sorensen

Reports

Introduction: The U.S. Bureas of Reclamation is currently in the process of evaluating a number of water development projects in Southwest Colorado. As a part of the planning process the Bureasu has conducted a water qualtiy investigation, in cooperations with the UWRL, of the stream segments that will be affected by each project. The data collected in this study were used to evaluate the water quality of each stream segment with respect to various beneficial uses of water (agriculture, raw municipal water supply, protection of the aquatic biota) and will provide a baseline by which to assess the impact of …

Pre-Impoundment Water Quality Study For The Mancos Project, Larry Baker, V. Dean Adams, Leslie G. Terry, Jerald S. Fifield, Darwin L. Sorensen

Reports

Introduction: The U.S. Bureau of Reclamation is currently in the process of evaluating a number of water development projects in Southwest Colorado. As a part of the planning process the Bureau has conducted a water quality investigation, in cooperation with the UWRL, of the stream segments that will be affected by each project. The data collected in this study were used to evaluate the water quality of each stream segment with respect to various beneficial uses of water (agriculture, raw municipal water supply, protection of the aquatic biota) and will provide a baseline by which to assess the impact of …

Pre-Impoundment Water Quality Study For The West Divide Project, Larry Baker, V. Dean Adams, Leslie G. Terry, Jerald S. Fifield, Darwin L. Sorensen

Reports

Introduction: The U.S. Bureas of Reclamation is currently in the process of evaluating a number of water development projects in Southwest Colorado. As a part of the planning process the Bureasu has conducted a water qualtiy investigation, in cooperations with the UWRL, of the stream segments that will be affected by each project. The data collected in this study were used to evaluate the water quality of each stream segment with respect to various beneficial uses of water (agriculture, raw municipal water supply, protection of the aquatic biota) and will provide a baseline by which to assess the impact of …

Pre-Impoundment Water Quality Study For The Dominguez Project, Larry Baker, V. Dean Adams, Leslie G. Terry, Jerald S. Fifield, Darwin L. Sorensen

Reports

Introduction: The U.S. Bureas of Reclamation is currently in the process of evaluating a number of water development projects in Southwest Colorado. As a part of the planning process the Bureasu has conducted a water qualtiy investigation, in cooperations with the UWRL, of the stream segments that will be affected by each project. The data collected in this study were used to evaluate the water quality of each stream segment with respect to various beneficial uses of water (agriculture, raw municipal water supply, protection of the aquatic biota) and will provide a baseline by which to assess the impact of …

Pre-Impoundment Water Quality Study For The San Miguel Project, Larry Baker, V. Dean Adams, Leslie G. Terry, Jerald S. Fifield, Darwin L. Sorensen

Reports

Introduction: Scope of Study: The United State Bureau of Reclamation (USBR) is currently evaluating plans to construct a multipurpose reservoir on the San Miguel River 32 kilometers (20 miles) below Telluride, Colorado. As part of the environmental assessment for this project, the Utah Water Research Laboratory (UWRL) was contracted to conduct an intensive water quality study on the San Miguel River and its tributaries in the vicinity of the project area. In this study water samples were collected during the period from May, 1977, to August, 1978, on a monthly basis from three sites on the San Miguel River and …

Proceedings Of The Utah Water Pollution Control Association, 1979 Annual Meeting, Kathleen E. Bayn

Reports

Preface: This volume is the third published proceedings of the Utah Water Pollution Control Association's Annual Meeting. The Technical Program of the 1979 Annual Meeting was divided into four separate sessions. The opening session (Session I) provided an overview and direction for the entire meeting. Session II-A: Plant Safety, and Session III-A: Plant Safety, centered on the need for establishing appropriate safety procedures at wastewater installations. Session II-B: Selected Topics, was devoted to technical presentations of speical merit and interest to the local environmental engineering profession. Session III-B: Interim Upgrading, considered various alternatives to upgraiding wastewater facilities on an interim …

Study Of The Avalanche Multiplication And Signal-To-Noise Power Ratio In The Ternary InXGa1-XAs Avalanche Photodiode, Susan Lee Wymer

Retrospective Theses and Dissertations

Major advances in fiber optic transmissions have brought about a need for highly sensitive photodetectors. In order to detect this type of transmission, the photodetector must be able to detect one of the two low loss windows of the fiber optics transmission. The photodetector must also be characterized by a high gain and fast speed of response without generating excessive noise power. This report compares different types of high speed phodetectors with emphasis on the merits of using an avalanche photodiode. The report studies the avalanche multiplication and the signal-to-noise power ratio in the ternary InGaAs. The effects of the …

Treatment And Disposal Of Hazardous Wastes In The East Central Florida Region, Tracey Bell

Retrospective Theses and Dissertations

Although the East Central Florida area is not heavily industrialized, its dependence on groundwater resources makes it especially vulnerable to contamination by poor waste disposal practices. The East Central Florida area was studied to discover the nature and disposal of hazardous wastes generated. It was found that a large portion of hazardous wastes in the region were from very small industries, distributors, and even consumers. Three of the most toxic and/or voluminous waste problems in the area--metal plating wastes, pesticide wastes, and hospital wastes--were studied to determine available alternatives for disposal and their costs.

Accelerated Flight Test Data As A Basis For Forecasting Logistical Requirements Of Military Aircraft, Charles James White

Retrospective Theses and Dissertations

The initial forecasting of logistical support for new types of military aircraft is a perplexing problem. The objective of this research was to investigate the feasibility of using data generated by the accelerated flight tests as a basis for forecasting the logistical field requirements. The data used in the study were obtained from the U.S. Army Aviation Board, Fort Rucker, Alabama, where performance tests are conducted on all new aircraft to determine their suitability for Army use. It was statistically shown that the use of these data could provide more realistic logistical forecasts earlier in the introductory phase of the …

The Influence Of Harvest Rate And Drying Time On Grain Drying And Storage Facility Selection, Thomas C. Bridges, Otto J. Loewer Jr., Douglas G. Overhults

Biosystems and Agricultural Engineering Faculty Publications

No abstract provided.

Determination Of Strategy For Harvesting Burley Tobacco, Yasuhiko Miyake, Larry G. Wells, George A. Duncan, Jimmie Rankin

Biosystems and Agricultural Engineering Faculty Publications

The decision-making process associated with the scheduling of burley tobacco harvesting operations was formulated as a multi-stage decision process, and solved using a procedure called dynamic programming. The solution of a stochastic dynamic programming model provides a set of optimal decision rules, that is, a strategy. When certain user-specified parameters are provided, the decision model provides information concerning the optimal date to start harvesting, the optimal number of hours to harvest on each day, the optimal date to introduce hired labor, and the optimal number of workers which should be hired.

The solution of the dynamic programming model makes it …

There's Little To Choose Between Scarifier Points, C R. Lester

Journal of the Department of Agriculture, Western Australia, Series 4

Tests on scarifier points showed that methods of treating them to prolong their life had little effect.

Getting The Best From Tractor Tyres, J Quealy

Journal of the Department of Agriculture, Western Australia, Series 4

The amount of pull a tractor develops depends largely on tyre efficiency and so with so many tyre size options for the one tractor model it is very easy to make the wrong decision on tyre fitment.

Tyre efficiency varies with tractor weight, soil conditions, inflation pressure and tyre size.

Hers we look at some of these factors and how changing them may affect efficiency.

Calibration Of Boom Sprays, J R. Peirce

Journal of the Department of Agriculture, Western Australia, Series 4

Boom sprays have become increasingly common on Western Australian farms, allowing farmers to take advantage of modern herbicided.

Most boom sprays used on farms have 50 cm nozzle spacings and require calibrating regularily to ensure accurate herbicide application.

By following these steps, the boom will deliver accurate amounts of herbicide.

Energy Fact Sheet: Design Considerations For Below-Grade Housing, University Of Kentucky College Of Agriculture Cooperative Extension Service

Agricultural Engineering Energy Series

Below-grade living is not new; prehistoric man instinctively sought out subterranean shelters for protection against his enemies and extreme environmental conditions. Historically, the designs of below-grade enclosures were determined by such factors as availability of building materials, climatic elements, defensive needs, ceremonial beliefs, and cultural concerns. Contemporary use of underground house components includes basements, cellars, and other similar spaces. In most cases, however, individuals occupying below-grade quarters have either had access to an above-grade structure or have considered such quarters as temporary. The notorious basement that is wet, cold, and without adequate lighting has given an undesirable image to below-grade …

Solar Energy For Heating Farm Structures In Kentucky, Richard S. Hiatt, Blaine F. Parker

Agricultural Engineering Extension Updates

This report is intended to summarize the important decisions which must be made by farmers in Kentucky, who are considering the utilization of solar energy for heating farm buildings or drying grain.

Photogrammetric Digitizing System, Frank Richard Gorshe

Dissertations and Theses

The acquisition of terrain data from aerial photography using digital photogrammetric methods gives the engineer and planner an economical alternative to conventional ground surveys. This paper describes a complete photogrammetric digitizing system developed for the Portland District Army Corps of Engineers. The hardware of the system consists of a

Wild AlO first order stereoplotter interfaced to an Altec AC-74 coordinate digitizer which is interfaced to both a Hewlett Packard 9810A programmable calculator and a Digi-Data nine-track magnetic tape recorder. The software of the system consists of photogrammetric routines developed for online computation by the programmable calculator and a sophisticated FORTRAN …

Performance And Evaluation Of Swine House Heating With A Solar Energy Intensifier-Thermal Energy Storage System, Albert J. Heber

Electronic Theses and Dissertations

The urgency for energy independence in the United States is unprecedented in its history. The demand for energy is reflected in rising fuel costs which affects every segment of the economy. Among the most severely affected sectors is the agriculture industry, whose fossil fuel consumption is crucial to its efficient production of food and fiber. Solar, one of several alternative energy sources being developed nationwide has unique possibilities in the U.S. agriculture system. Large areas are available for locating collector units, and the energy requirements in the farm are low compared with the available radiation falling on the area. Drying …

Design Of A Vertical Axis And Turbine-Variable Speed Heat Pump Alternate Energy System, John V. Karnitis

Electronic Theses and Dissertations

The primary objective if the project is to design an unguyed wind energy conversion system consisting of a Savonius rotor assisted non-articulating 5m (15 ft) diameter Darrius vertical axis wind turbine, which is self-starting, and is mechanically coupled by a V-belt drive to an automotive air conditioning variable speed compressor. The variable speed-compressor is utilized as a mover for a variable speed heat pump system. The basic objective is further subdivided into the following objectives:
1. To develop a preliminary design of the wind energy conversion system, which later cane be modified to the existing energy needs.
2. To predict …

Design And Performance Of A Solar Energy Intensifier System For Drying Shelled Corn, Kenneth J. Hellevang

Electronic Theses and Dissertations

Since utilizing solar energy as an alternate energy source for agricultural applications is dependent on improvement in the design of solar systems and on documentation of the performance characteristics, reliability and economic feasibility of solar systems, research was conducted with the following objectives: 1. Design a multi-purpose solar energy system with a diurnally tracking solar energy intensifier and a thermal energy storage unit to warm the ventilation air for a swine confinement building and to dry corn. 2. Test the solar energy intensifier-collector system for corn drying under actual conditions. 3. Evaluate the performance and economic feasibility of a diurnally …

Boehmite-Bonded High-Alumina Refractories, Gerhard H. Schiroky

Masters Theses

"High-alumina refractories (99+ % Al₂O₃) were produced by pressing a mixture of 70% tabular alumina and 30% reactive alumina and autoclaving in saturated steam at 1.4 MPa (200 psia)/194 °C to 3.4 MPa (500 psia)/242 °C for 12 to 96 h. Autoclaving converted the reactive alumina to boehmite which acted as the bond phase. At room temperature the MOR ranged up to 37 MPa depending upon boehmite content. The hot-MOR decreased steadily with increasing temperature, but was still 8 MPa at 1400 °C which exceeds that of comparable cement-bonded or conventionally fired high-alumina refractories. The estimated autoclaving costs are lower …

Processing Of Copper Refinery Anode Slimes, Shrirang Anant Kulkarni

Masters Theses

"A study of commercial copper refinery anode slimes has been conducted to evaluate the separation of valuable metals contained in the slimes. The slimes contain substantial quantities of Ag, Sn, Au, Pb, and Cu. The values were present principally as AgCl, SnO₂, Au, PbSO₄, Cu and CuSO₄.

A Roast-Leach-Roast-Leach (RLRL) technique solubilized up to 91 pct of the Ag and 99 pct of the Cu from raw slimes.

The Pb-Sn separation was investigated using the following hydrometallurgical techniques: 1) DETA (diethylene triamine) leaching; 2) NaOH leaching; 3) (NH₄)₂CO₃ leaching; …

Pelletizing Of A Lead Sinter Machine Feed, Hung-Yang Tsai

Masters Theses

"A typical lead sinter machine feed can be pelletized in a drum pelletizer using tap water as a binding liquid. The green pellets produced have return sinter as cores, and an outer layer of new material and fluxes. The moisture content of the pellets produced is about 5%. The pelletizing procedure developed used raw materials from the Amax Lead Smelter, with only a minor amount of feed preparation. The importance of proper moisture control, use of binders, method of adding moisture, speed of pelletizing drum, etc. were investigated. The stability of pellets under extreme storage conditions was also determined"--page ii.

A Resource Survey Of Hydroelectric Power Potential In Utah And Southeast Idaho, Calvin G. Clyde, Eugene K. Israelsen, Win-Kai Liu

Reports

N searching for alternative sources of energy to supply growing demands, it is essential that renewable sources by thoroughly considered. An essential early step in further hydroelectric power development is to understand in detail the amount and location of the resource. This survey of hydroelectric power potential covers the entire State of Utah, the Bear River Basin in Idaho and Wyoming, and the small part of the Snake River drainage lying in the Utah Power and Light Company service area in Idaho. Streams were covered initially if their flow was estimated to exceed 36 cfs 50 percent of the time. …

Test 1310: Massey-Ferguson 2705 Diesel 24-Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE

General

Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure.

The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …

A Metallurgical Evaluation Of The Mi Vida Prospect: A Mixed Copper Sulfide-Carbonate Ore Body, Sells, Pima County, Arizona, Kevin Michael Kenney

Masters Theses

"A copper-prospect in south-central Arizona has been evaluated on a metallurgical basis. Primary chalcocite and secondary covellite, plus the copper oxides malachite and brochantite, constitute the economic mineralization. The deposit outcrops as a steeply dipping (70°SW), intensely brecciated, copper-bearing quartz vein with discontinuous lenticular ore shoots.

Acid leaching techniques alone and in conjunction with froth flotation utilizing four copper oxide specific collectors were used to evaluate the amenability of this ore to processing. Direct acid leaching was examined and found to be ineffective. Removal of the chalcocite by froth flotation with xanthate was easy and gave better results to subsequent …

A Computer Model For Evaluating Corn Harvesting, Handling, Drying And Storage Systems, Thomas C. Bridges, Otto J. Loewer Jr., John N. Walker, Douglas G. Overhults

Biosystems and Agricultural Engineering Faculty Publications

No abstract provided.

Application Of Optimization Techniques To The Optical Design Of A Laser Seeker, David William Allemeier

Retrospective Theses and Dissertations

This report describes the development of a computer model for the design of a laser seeker optical system. A laser seeker is a device that detects pulsed laser energy. The computer model is configured to design the seeker optics based on the following performance criteria: Sensitivity to laser energy, which can be related to target acquisition range; optical field of view; and seeker optics cross section area. The design is defined by four variables and a set of fixed parameters, and is configured using computer optimization with both a direct search and a random search being used. A superior design …