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Articles 5671 - 5700 of 6117
Full-Text Articles in Civil and Environmental Engineering
An Historical Review Of Oil Spills Along The Maine Coast 1953-1973, Edward H. Shenton
An Historical Review Of Oil Spills Along The Maine Coast 1953-1973, Edward H. Shenton
Maine Collection
An Historical Review of Oil Spills Along the Maine Coast 1953-1973
by Edward H. Shenton
Prepared for The Maine State Planning Office, Coastal Planning Group and The Research Institute of the Gulf of Maine (TRIGOM), August, 1973.
TRIGOM Publication No. 3
Contents: Introduction / A Chronology of Significant Oil Spills / A Summary of Biological Impacts / Spill Statistics / Discussion of Results / Conclusions of the Study / Recommendations for Future Research / Appendices
Process Control Of Activated Sludge Treatment, Richard I. Kermode, Robert W. J. Brett, Kenneth A. Debelak, John J. Davis
Process Control Of Activated Sludge Treatment, Richard I. Kermode, Robert W. J. Brett, Kenneth A. Debelak, John J. Davis
KWRRI Research Reports
General feed forward controllers, conforming to standard control modes, have been derived for an activated sludge process. The analysis indicated that the appropriate controllers are proportional control with measurement of substrate flow rate, and derivative control with measurement of inlet substrate concentration, and manipulation of the rate of return sludge by both controllers.
The performance of these controllers was tested by computer simulation of five dynamic aerator models with and without sludge storage, and with two settling basin models. In all cases significant reduction of the maximum exit substrate concentration was achieved. Additional improvement resulted from the use of sludge …
The Linear New City -- A Pattern For New Cities Based On Efficiency Of Transportation, Public Services, And Land Use, Elbridge Wesley Bartley Iii
The Linear New City -- A Pattern For New Cities Based On Efficiency Of Transportation, Public Services, And Land Use, Elbridge Wesley Bartley Iii
Masters Theses
"The linear new city is defined as a city consisting of some arrangement of relatively narrow, high-density strips, served by various mass transportation systems. Such a new city would be ideally suited to the implementation of the latest technology. The concentration of development along the transportation route would allow certain economies in the supply of utilities and services, as well as insuring that open space would be readily available around and throughout the city. The provisions for transportation, housing, and governmental control should combine to produce a better quality of life for the inhabitants of the linear new city"--Abstract, page …
High Speed Magnetically Supported Vehicles For Reducing Transportation's Degradations Of The Environment, Pravinchandra Shukla
High Speed Magnetically Supported Vehicles For Reducing Transportation's Degradations Of The Environment, Pravinchandra Shukla
Masters Theses
"The development of new techniques for higher speed transportation is desirable to satisfy the environmental, conservation, and economic requirements of society. Some of the important factors are presented for developing magnetically supported vehicles. A new method for improving the ratio of lift force to drag force is suggested and discussed. An application of the new technique to vehicles that would ride on a carpet of magnetism and would operate with less waste of energy is suggested "--Abstract, page ii.
Measurement Of Currents In Lake Mead With The Deep Water Isotopic Current Analyzer (Dwica), J. J. Sartoris, D. A. Hoffman, Bureau Of Reclamation
Measurement Of Currents In Lake Mead With The Deep Water Isotopic Current Analyzer (Dwica), J. J. Sartoris, D. A. Hoffman, Bureau Of Reclamation
Publications (WR)
In Nov 1967, a Deep Water Isotopic Current Analyzer (DWICA) was used to study current patterns in the Boulder Basin of Lake Mead to determine if low-quality water from Las Vegas Bay might enter the Southern Nevada Water Project intake on Saddle Island. Secondary objectives were to study the general current patterns in Boulder Basin and the effect of power discharges at Hoover Dam on these currents. Results of current measurements at 3 stations in Boulder Basin are given. Observations indicate a definite possibility that low-quality water from Las Vegas Bay might enter the water intake on Saddle Island. Current …
Fisheries Report No Viii (8) - Report On A Visit Of Inspection To Barrow Island November 1969, A. A. Burbidge, A. R. Main
Fisheries Report No Viii (8) - Report On A Visit Of Inspection To Barrow Island November 1969, A. A. Burbidge, A. R. Main
Fisheries Research Reports
The aim of the inspection was to examine the effects on the fauna and flora of the oil exploration initiated in mid-1963 by West Australian Petroleum Pty. Ltd. (WAPET) and the construction and development programme which followed in 1966 and which is now nearing completion.
Water Conservation Handbook, D J. Carder, G. W. Spencer
Water Conservation Handbook, D J. Carder, G. W. Spencer
Natural resources published reports
This handbook is intended as a practical guide in some of the most common aspects of water conservation in the agricultural areas of Western Australia. It deals mainly with water conserved in dams for stock and domestic purposes on the farm.
the farm. The handbook does not attempt to deal with all aspects of handling and using water for agricultural purposes. This is a vast subject which extends into many fields such as engineering, irrigation and land use.
The guide does, however, touch on some important aspects of good management of agricultural land. It should be read in conjunction with …
Clay Cover For Roaded Catchments, J L. Frith, R. A. Nulsen
Clay Cover For Roaded Catchments, J L. Frith, R. A. Nulsen
Journal of the Department of Agriculture, Western Australia, Series 4
RECENT dry years have stimulated interest in improved catchments for farm dams. Although roaded catchments have been installed on many farm dams in Western Australia, most of them fall short of their potential for increasing run-off.
The 1963-64 Lake Mead Survey, J. M. Lara, J. I. Sanders, Bureau Of Reclamation
The 1963-64 Lake Mead Survey, J. M. Lara, J. I. Sanders, Bureau Of Reclamation
Publications (WR)
The 1963-64 Lake Mead survey was run to compute the reservoir capacity. Results of the geodetic and hydrographic surveys and sediment sampling equipment are described. The geodetic survey showed Hoover Dam subsided an average of 118 mm since 1935. Sonic sounding, photogrammetry, and crosssectional profiling methods were used to run the hydrographic survey. Reservoir area and capacity tables were generated using an electronic computer. The present lake capacity is 29,755,000 acre-ft and the reservoir surface area is 162,700 acres at elevation 1229 ft. 2,720,000 acre-ft of sediments accumulated in the lake since 1935. A unit weight of 60 Ib/cu ft …
Water Conservation : The Storage Life Of Farm Dams, D J. Carder
Water Conservation : The Storage Life Of Farm Dams, D J. Carder
Journal of the Department of Agriculture, Western Australia, Series 4
HOW MANY stock can a dam of a certain size and depth be expected to carry and how long will the supply last?
What size of dam is needed in case the winter rains fail? How many stock can a dam support and still provide a drought supply?
West Midlands Development : Erosion Prevention And Control, G W. Spencer
West Midlands Development : Erosion Prevention And Control, G W. Spencer
Journal of the Department of Agriculture, Western Australia, Series 4
THE prevention of soil erosion is essentially a matter of using each soil according to its potential, and treating it according to its needs.
Good land use and sound management practices are the best preventive measures.
West Midlands Development : Development Techniques, Department Of Agriculture, Western Australia
West Midlands Development : Development Techniques, Department Of Agriculture, Western Australia
Journal of the Department of Agriculture, Western Australia, Series 4
Most clearing in the West Midlands is carried out by chaining, though the method chosen will depend on the country being cleared and on the resources of the farmer.
Urban Geology—A Need And A Challenge, William J. Wayne
Urban Geology—A Need And A Challenge, William J. Wayne
Department of Earth and Atmospheric Sciences: Faculty Publications
Urban land uses are rapidly converting open land into intensively used land. Generally, in planning those uses, a comprehensive study has included everything except an evaluation of the land in three dimensions. Geologists are eminently well equipped to supply the missing data, but they must also be aware of the needs of the urban community and the kinds of information needed by planners if they are to write reports usable by planners. Urban and environmental geology is a newly expanding field in the use of geologic data to help solve some urban problems in the planning stage. It is likely …
Waterways: Comprehensive Regional Plan Series Report Four, East Central Florida Regional Planning Council
Waterways: Comprehensive Regional Plan Series Report Four, East Central Florida Regional Planning Council
City and Regional Planning -- Florida
A plan to make use of the lakes, rivers, canals, and oceans for commerce and other development
Controlled Environment Broiler Houses In Western Australia, D F. Hessels
Controlled Environment Broiler Houses In Western Australia, D F. Hessels
Journal of the Department of Agriculture, Western Australia, Series 4
The three main features which contribute to the better returns from controlled environment broiler housing are higher density, better conversion and a reduction in labour.
The higher initial cost of housing and higher running costs are more than covered by these three advantages.
Planning A Dairy Farm, A W. Hobbs
Planning A Dairy Farm, A W. Hobbs
Journal of the Department of Agriculture, Western Australia, Series 4
THE average dairy farmer makes improvements to his property as opportunity offers, working towards a goal he has formulated in his mind.
This gradual development may eventually lead to his desired layout.
Fence Out Those Rabbits, J C. Rowbotham
Fence Out Those Rabbits, J C. Rowbotham
Journal of the Department of Agriculture, Western Australia, Series 4
THERE is probably no more distressing sight to orchardists' eyes than two or three hundred young fruit trees that have been damaged by rabbits.
Effects Of Oxygen Content Of Admitted Gases In Sulfide Flotation, Brian J. Boyle
Effects Of Oxygen Content Of Admitted Gases In Sulfide Flotation, Brian J. Boyle
Bachelors Theses and Reports, 1928 - 1970
No abstract provided.
Methods Of Studying The Effects Of Frothers, Frank L. Bazzanella
Methods Of Studying The Effects Of Frothers, Frank L. Bazzanella
Bachelors Theses and Reports, 1928 - 1970
No abstract provided.
Attack The Rabbit At Home : Destroy Warrens And Harbourage, J S. Crawford
Attack The Rabbit At Home : Destroy Warrens And Harbourage, J S. Crawford
Journal of the Department of Agriculture, Western Australia, Series 4
Effective rabbit destruction often calls for a carefully worked out control programme consisting of poisoning, fumigating and warren and harbourage destruction.
Possibly the most effective means of not only controlling rabbits but ultimately eradicating them from holdings is the destruction of warrens and harbourage.
Planning New Farm Dams : Excavated Earth Tanks, J E. Watson, J. C. Grasby
Planning New Farm Dams : Excavated Earth Tanks, J E. Watson, J. C. Grasby
Journal of the Department of Agriculture, Western Australia, Series 4
A GOOD farm dam is a valuable asset, and well worth its cost, but there are many aspects to consider when a new dam is required. Careful planning with adequate testing and checking will help to get the best value for money and reduce the chance of costly failures.
This article discusses these aspects in relation to the excavated earth tank type of dam.
Studies In Modulation Of Interfacial Reactions For Certain Sulphide Minerals, Robert Owen Beyaert
Studies In Modulation Of Interfacial Reactions For Certain Sulphide Minerals, Robert Owen Beyaert
Bachelors Theses and Reports, 1928 - 1970
No abstract provided.
Habit Modification Of Naclo3 With Nai, William A. Coghlan
Habit Modification Of Naclo3 With Nai, William A. Coghlan
Bachelors Theses and Reports, 1928 - 1970
No abstract provided.
Production Of Standard-Grade Ferromanganese In An Electric Arc Furnace, Force F. Baney Jr.
Production Of Standard-Grade Ferromanganese In An Electric Arc Furnace, Force F. Baney Jr.
Bachelors Theses and Reports, 1928 - 1970
The investigations conducted in this project were essentially concerned with the effects of various compositions of two different slag systems upon the increased recovery of manganese in a standard-grade ferromanganese.
Investigation Of The Ternary System Silver-Aluminum-Indium (Ag-Al-In), Elvin H. Beardslee
Investigation Of The Ternary System Silver-Aluminum-Indium (Ag-Al-In), Elvin H. Beardslee
Bachelors Theses and Reports, 1928 - 1970
This thesis paper contains material pertaining to & preliminary investigation of the ternary system Ag-Al-In. Procedures in this preliminary investigation are discussed in detail.
Preliminary Examination Of The Aluminum Corner Of The Ternary System Aluminum-Silver-Indium (A1-Ag-In), Jerome J. Blake
Preliminary Examination Of The Aluminum Corner Of The Ternary System Aluminum-Silver-Indium (A1-Ag-In), Jerome J. Blake
Bachelors Theses and Reports, 1928 - 1970
In this paper the author attempts to lay the groundwork for future work on the Al-Ag-In system.
Increased Corrosion Of A 304 Stainless Steel Upon Bending, William C. Tiddy
Increased Corrosion Of A 304 Stainless Steel Upon Bending, William C. Tiddy
Bachelors Theses and Reports, 1928 - 1970
No abstract provided.
Identification Of Nonmetallic Inclusions In Armco Ingot Iron With Polarized Light, Frank E. Panisko
Identification Of Nonmetallic Inclusions In Armco Ingot Iron With Polarized Light, Frank E. Panisko
Bachelors Theses and Reports, 1928 - 1970
No abstract provided.
Land Preparation For Border Irrigation, B Swan
Land Preparation For Border Irrigation, B Swan
Journal of the Department of Agriculture, Western Australia, Series 4
LARGE amounts of water may be lost through excess run-off and deep percolation.
Proper preparation of irrigation land can help to minimise these losses.
This preparation is done by grading or levelling so that the original ground surface is shaped to allow for a more uniform distribution of water.
The Hydrometallurgy Of Uranium, John E. Cesarani
The Hydrometallurgy Of Uranium, John E. Cesarani
Bachelors Theses and Reports, 1928 - 1970
No abstract provided.