Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Environmental Sciences

Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 19291 - 19320 of 19870

Full-Text Articles in Entire DC Network

Critical Areas Planning In Minnesota, Clifton J. Aichinger Jan 1979

Critical Areas Planning In Minnesota, Clifton J. Aichinger

Journal of the Minnesota Academy of Science

The Critical Areas Planning Program was established by Minnesota legislation in 1973. Its primary work is with local units of government, regional or state agencies located within areas possessing significant natural, scientific, cultural or historical resources to develop consistent plans and regulations for area use and management. Local units of government prepare the plans and regulations according to guidelines approved by the governor for each critical area'. with technical and financial assistance from the Environmental Quality Board (EQB). The enabling act directed the EQB to develop an inventory of potential critical areas in the state. Inventory methods were evaluated. The …


Saving The State From Rabbits, Department Of Agriculture, Western Australia Jan 1979

Saving The State From Rabbits, Department Of Agriculture, Western Australia

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

A thoughtful look at the rise and fall of rabbit populations in Western Astralia and the work done to achive the current levels.


Sand Dune Project Stabilises Erosion, Department Of Agriculture, Western Australia Jan 1979

Sand Dune Project Stabilises Erosion, Department Of Agriculture, Western Australia

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

Read how the Department of Agriculture's Soil Conservation Service and the Department of Conservation and Environment worked with the Rockingham Shire to upgrade the road and protect the sand dunes.


Contour Cultivation : Cheap Erosion Control, T R. Negus, B. Barrett Jan 1979

Contour Cultivation : Cheap Erosion Control, T R. Negus, B. Barrett

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

Although the benefits of contour cultivation are well recognised, it makes cultivation more difficult, particularly if the paddock is split by contour banks and grassed waterways. However, a comparison east of Pingelly indicates that contour cultivation is little more expensive or time-consuming than ordinary cultivation.


Economic Feasibility Of Ethanol, Methanol And Alcohol-Gasoline Blends As Alternatives To Gasoline As Motor Fuels, Marjorie Diane Pettypool Jan 1979

Economic Feasibility Of Ethanol, Methanol And Alcohol-Gasoline Blends As Alternatives To Gasoline As Motor Fuels, Marjorie Diane Pettypool

Masters Theses

The major emphasis of this study is the economic feasibility of the use of alcohol-gasoline blends (gasohol) and alcohol fuels; but all major issues concerning the use of gasohol and alcohol fuels are explored. The specific objectives of the investigation include the determination of the specific performance properties of the fuels, their pollutant emissions (compared to gasoline), and their costs compared to gasoline.

While opponents to the use of alcohol fuels are more vocal than proponents, citing high cost and the lack of raw materials as objections, proponents believe new processes that can use any cellulose containing material as a …


Management Of Antarctic Krill, Paul Setliff Jan 1979

Management Of Antarctic Krill, Paul Setliff

Marine Affairs Theses and Major Papers

This study pertains to the problem of international activity in an area of political and ecological sensitivity, the Southern Ocean. Of specific concern is the question of which group of states should have a voice in management of Antarctic krill. The niche filled by krill within the ecosystem and its potential as a fishery is discussed. Past international practice has been affected for the most part by the Antarctic Treaty of 1959 which has maintained a somewhat exclusive "club" of nations as the overseers of Antarctic activity. However, states not party to the 1959 Treaty are becoming interested in the …


The Cost Of Crop Residues As An Auxiliary Fuel Source For Coal-Fired Power Plants, Cameron Short, Burton C. English, Steve K. Johnson, Earl O. Heady Oct 1978

The Cost Of Crop Residues As An Auxiliary Fuel Source For Coal-Fired Power Plants, Cameron Short, Burton C. English, Steve K. Johnson, Earl O. Heady

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

Estimates are made of the costs of crop residues as an auxilary fuel to existing coal-fired power plants. Costs of crop residues include costs for foregone agronomic benefits of incorporating crop residues, and costs for harvesting transporting processing and boiler modifications. A range of cost estimates is given depending on annual demand.


The Effect Of Crude Oil Prices On The Output Composition Of Refined Petroleum Products, Angelos Pagoulatos, David L. Debertin, Emilio Pagoulatos Oct 1978

The Effect Of Crude Oil Prices On The Output Composition Of Refined Petroleum Products, Angelos Pagoulatos, David L. Debertin, Emilio Pagoulatos

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

In this study the crude petroleum market is linked to the market of refined petroleum products through a set of technological relationships. An econometric study is used to quantify the existing relevant variables. The price equations for each refined product are used to derive estimates of elasticities with respect to quantity supplied, price of domestic crude oil and price of imports.


Cost Accounting Regulations In Oil And Gas Industries, Lakshmi U. Tatikonda, Rao J. Tatikonda Oct 1978

Cost Accounting Regulations In Oil And Gas Industries, Lakshmi U. Tatikonda, Rao J. Tatikonda

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

The cost accounting methods that are currently used in the oil and gas Industry are very diverse. Since the 1973 Arab Oil Embargo, increased attention was given to this issue, which resulted in the issuance of SFAS-19 by the FA SB and the SEC’s attempt to develop a new accounting method based on the value of their reserves. The pros and cons of the existing methods are discussed. Also discussed is the need for a uniform accounting procedure.


Analysis Of Residential Electric Demand In Southwestern Indiana, Mangi L. Agarwal Oct 1978

Analysis Of Residential Electric Demand In Southwestern Indiana, Mangi L. Agarwal

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

This study analyzes the residential demand for electricity in the Southern Indiana Gas and Electric Company service area. It explores the many variables which may contribute to electricity consumption. It also attempts to synthesize various weather and climatic data into one variable called the "comfort index" which may explain part of the electricity consumption. In estimating the demand equations, monthly data for twelve years have been used.


University Of Missouri--Rolla Wood Energy Research, Yildirim Omurtag, V. J. Flanigan, Nathan E. Welch Oct 1978

University Of Missouri--Rolla Wood Energy Research, Yildirim Omurtag, V. J. Flanigan, Nathan E. Welch

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

The overall objective of this project is to conduct a research and development program which will lead to the early commercialization of wood gasification technology to process wood residues typical of those found in the Ozark region.


An Analysis Of Investments In Residential Energy Conservation In Southeast Missouri, Ralph Gunderson Oct 1978

An Analysis Of Investments In Residential Energy Conservation In Southeast Missouri, Ralph Gunderson

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

This study examines the economic feasibility of residential solar heating. Climatic and economic variables used in this report represent those of Cape Girardeau, Missouri. An annual cost model is used to determine the conditions under which solar heating achieves a reduced annual cost of heating relative to gas and electric heating systems.


Fuel Gas From Wood Waste, V. K. Mathur, R. A. Caughey Oct 1978

Fuel Gas From Wood Waste, V. K. Mathur, R. A. Caughey

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

Design, construction and operation of a new type of gasifier for the production of fuel gas from wood waste (sawdust, chips, bark, etc.) are discussed. Data obtained from pilot plants are presented. The gasifier is inexpensive, easy to operate and has about 95% efficiency.


The Development Of Coal-Based Emulsions And Their Potential Impact On The National Economy, Murphy I. Song Oct 1978

The Development Of Coal-Based Emulsions And Their Potential Impact On The National Economy, Murphy I. Song

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

The proposed national energy policy emphasizes the use of coal replacing oil and gas. Coal-oil mixture (COM) can be produced using techniques developed in recent years to replace oil and gas. Large existing utility and industrial boilers could be converted to bum COM by retrofitting the boilers. In addition, the COM provides definite financial advantages to the owners of large utility and industrial boilers. The use of COM impacts on the national economy through new investment for retrofitting utility and industrial boilers, through reduced importation of residual oil, and through increased demand for coal.


Innovations In Heat Pumps, Ronald Hunter Howell, Harry J. Sauer Jr. Oct 1978

Innovations In Heat Pumps, Ronald Hunter Howell, Harry J. Sauer Jr.

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

The status of the residential heat pump industry is reviewed. Some potential improvements in energy efficiency, operational reliability, and initial cost are described and delineated. These possible innovations include two-speed or variable speed compressors, reliable defrost initiation and termination, improved system components, modifications to the basic thermodynamic cycle, add-on-heat pumps, solar assisted heat pumps, annual cycle energy system, chemical heat pumps, and gas fired heat pumps.


Development Of A New Technique For The Analysis Of Pesticides In Water, Prasad K. Kadaba, Pramode K. Bhagat, Radko Osredkar, V. R. K. Murthy Oct 1978

Development Of A New Technique For The Analysis Of Pesticides In Water, Prasad K. Kadaba, Pramode K. Bhagat, Radko Osredkar, V. R. K. Murthy

KWRRI Research Reports

A Nuclear Double Resonance Spectrograph has been designed and constructed with emphasis on quadrupolar nuclei of half-integral spins. The use of a data acquisition and processing system featuring the A/D converter, signal averager with built in fast Fourier transformation hardware greatly improves the S/N ratio. The spectrograph has been used to detect certain organochlorine, carbamate and symmetrical triazine pesticides. Concentration levels that can be detected range from 15 to 100 micrograms per liter. Since the measurements are done below ice temperatures, heat-labile compounds can be detected without conversion to more suitable derivatives as in gas chromatography. Fats and oils in …


A Proposed Revision Of Kentucky's Water Rights Legislation, Richard Ausness Oct 1978

A Proposed Revision Of Kentucky's Water Rights Legislation, Richard Ausness

KWRRI Research Reports

Kentucky's present system of water law consists of a statutory water withdrawal permit system superimposed upon a body of common-law water rights doctrine. The rights of water users are often uncertain under this system, particularly in periods of water shortage. The proposed revision of Kentucky's existing water rights legislation, would greatly reduce the significance of common-law water rights and would remedy some of the weaknesses in the present statute.

Part 1 of the proposed statute establishes an administrative structure; Part 2 deals with water withdrawal permits; Part 3 retains the present statute's provisions on the regulation of dams and impoundments, …


Water Current, Volume 10, No. 5, September/October 1978 Sep 1978

Water Current, Volume 10, No. 5, September/October 1978

Water Current Newsletter

President Announces New Water Policy
Research Overviews Planned
NWRC Hosts Successful Programs
Grantsmanship Training Workshop
New Staff Member
Water Resources in Nebraska
Federal Studies Investigate Ogallala Aquifer
USGS Ogallala Study
EDA Study
Bureau of Reclamation Study
Research Review: Development of a Multiobjective Screening Model for Water Resources Planning in Nebraska


Volume 2, Number 8 (August 1978), The Otec Liaison Aug 1978

Volume 2, Number 8 (August 1978), The Otec Liaison

The OTEC Liaison

No abstract provided.


Evaluation Of Detention Basins For Controlling Urban Runoff And Sedimentation, C. T. Haan, A. D. Ward Aug 1978

Evaluation Of Detention Basins For Controlling Urban Runoff And Sedimentation, C. T. Haan, A. D. Ward

KWRRI Research Reports

This report summarizes the work completed under the research project "Evaluation of Dentention Basins for Controlling Urban Runoff and Sedimentation." The main project accomplishments were:

(1) a demonstration of the desirability of considering systems of urban stormwater detention basins as opposed to individual basin design,

(2) the development of a systems analysis approach for least cost selection of a system of dentention basins for meeting a preset hydrologic objective,

(3) the development of a mathematical, computer-based simulation model of the performance of sediment retention basins,

(4) partial verification of the sediment basin model and

(5) the development of design recommendations …


The Dietary Effects Of Rana Catesbeiana Larvae On Micropterus Salmoides, Eric Jon Evenson Aug 1978

The Dietary Effects Of Rana Catesbeiana Larvae On Micropterus Salmoides, Eric Jon Evenson

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.


New Directions In Western Water Law Proceedings Of The Sixth Annual Conference Of The Utah Section Of The American Water Resources Assoc., Utah Water Research Laboratory Jul 1978

New Directions In Western Water Law Proceedings Of The Sixth Annual Conference Of The Utah Section Of The American Water Resources Assoc., Utah Water Research Laboratory

Reports

No abstract provided.


"Ecosystems", William E. Cooper Jun 1978

"Ecosystems", William E. Cooper

Special Collections: Oregon Public Speakers

From a lecture series with M.A. Arbib, "Environmental simulation and long-term planning."


Volume 2, Number 5 (May 1978), The Otec Liaison May 1978

Volume 2, Number 5 (May 1978), The Otec Liaison

The OTEC Liaison

No abstract provided.


Water Current, Volume 10, No. 3, May/June 1978 May 1978

Water Current, Volume 10, No. 3, May/June 1978

Water Current Newsletter

From the Desk of the Director
Grantsmanship Training Program Planned
Dee Creek Project Funded
Area of Excellence Review
Odgaard New Director of NWRA
National Water Policy Revealed
OWRT Appropriations
Research Review: Region-Wide Irrigation Scheduling by Local Evapotranspiration Measurement


Conflict In Outdoor Recreation, Gerald R. Jacob May 1978

Conflict In Outdoor Recreation, Gerald R. Jacob

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The causes of conflict among users of outdoor recreation resources have received little attention from recreation researchers. Knowledge of factors responsible for conflict might assist recreation planners' attempts to reduce future instances of conflict and help management focus its conflict resolution efforts. A theory of conflict is offered as the first step in systematically procuring such knowledge. A definition and characteristics of outdoor recreation conflicts are presented; four comprehensive causes of user conflicts are proposed. Ten propositions are used to link these factors to conflict and suggest future research hypotheses. The social psychological dynamics of conflict, as described here, have …


Conservation According To The Pure Theory Of Exhaustible Resources, George Lymbouris May 1978

Conservation According To The Pure Theory Of Exhaustible Resources, George Lymbouris

Economics Theses & Dissertations

The objective of this thesis is to develop a theory for defining optimal conservation and applying definition to the prevailing rate of domestic petroleum production. Optimal conservation is defined as action designed to achieve or to maintain, from the point of view of society as a whole, the maximum present value of natural resources (or of a natural resource). The proper "action" is defined according to the pure theory of exhaustible resources. The literature survey is a chronological series of articles concerning this theory.

Through building a model which shows that optimal conservation occurs when the marginal internal rate of …


Volume 2, Number 4 (April 1978), The Otec Liaison Apr 1978

Volume 2, Number 4 (April 1978), The Otec Liaison

The OTEC Liaison

No abstract provided.


The Mining Of Coal In Bristol, Rhode Island: Potential Methodology, Impacts, And Evaluation Of Community Response, Norman Kahn Apr 1978

The Mining Of Coal In Bristol, Rhode Island: Potential Methodology, Impacts, And Evaluation Of Community Response, Norman Kahn

Marine Affairs Theses and Major Papers

This report addresses the potential commercial mining of coal in the coastal community of Bristol, Rhode Island, with respect to methodology and community response.The attitude of the local community towards any mining proposal will greatly influence the course of development of the resource. In addition, maximum community participation is mandated by both Federal and State law (NEPA and the Rhode Island Coastal Zone Management Act, respectively) (7, 8). It is to be expected that the character of the response will be mediated to a great degree by the expected impacts of the mining operation. For this reason, the methods of …


Pheromones: Their Potential For Ground Squirrel Control, Terrell P. Salmon Mar 1978

Pheromones: Their Potential For Ground Squirrel Control, Terrell P. Salmon

Vertebrate Pest Conference Proceedings: 8th (1978)

Olfactory communication appears to be an important aspect of the biology of most ground squirrels. Several scent-producing glands have been described as having scent-marking behavior. Although the adaptive significance of these glands has not been determined, possible functions are discussed. The potential of using pheromones in an integrated ground squirrel management program is discussed.