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VTETD 檢索結果共 19439 筆,本頁資料從第 217 筆到第 228 筆

The objective of this study was to develop a comprehensive, basin-wide, water-quality-planning model using system dynamics methodology. Later, the model was to be interfaced with a more conventional system dynamics model: one simulating social, technological, economic, and political interactions. By doing so, it is envisioned that such management policies as zoning, ....


By Edwin L. Smith-Sanitary Engineering-VT-masters-2013-03-12
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It is of utmost importance to note that the Sound-Space approach to subsonic compressibility effects is an exact solution to the problem. That is, equation 19.5 is an exact relation between the compressible and incompressible local pressure coefficients. Nowhere in the preceding analysis was it necessary to make simplifying assumptions such as small perturbations, et....


By Robert Wesley Truitt-Applied Mechanics-VT-masters-2013-03-12
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The annual national production of peanut hulls averages about two hundred million pounds. These hulls are generally disposed of as fuel in the plante processing the nuts or discarded as waste material. Similar cellulosic wastes have been profitably utillzed in the past as activated ohars. It was the purpose of this work to determine the conditions by which peanut hul....


By Stephen M. Gano-Chemical Engineering-VT-masters-2013-03-12
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Both the Mennonite and the Non-Mennonite girls participated in the same household activities and performed them to a similar degree; although the attitude of the Mennonite girls toward the activities was more positive. Apparently, there was little or no relation between the way the girls performed household activities and the way they felt about them.

All of t....


By Anna Arlene Bumbaugh-Family Life-VT-masters-2013-03-12
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In this work an enhanced graphical simulator for the IBM 7545 robot running on the AML/E language was developed. The simulator provided two views with the facility to chose either one as the major view, and pan/zoom into that view. It gives the user the facility to define equipment and workcell setups, accepting data in the Intemational Graphics Exchange Specificatio....


By Velluva P. Mohandas-Industrial Engineering and Operations Research-VT-masters-2013-03-12
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By Jane M Keppel-Benson-Psychology-VT-masters-2013-03-12
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Many developing countries that rely heavily on primary commodity exports to provide a major portion of their exchange revenues confront large variability in their incomes. This has been a factor of major concern to the developing countries as revenue instability is considered to deter development as well as affect the welfare of those engaged in production of such co....


By Nihal K. Atapattu-Agricultural Economics-VT-masters-2013-03-12
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Coagulation studies were conducted to determine an appropriate treatment approach to remove color and organic carbon from the pulp and paper wastes from the Union Camp Corporation, Franklin, Va.

Based on a preliminary analysis of the data collected during this research, either alum or ferric chloride may be used to remove color from pulp and paper wastes. An ....


By Deepak Bhinge-Environmental Engineering-VT-masters-2013-03-12
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Information on transit ridership and operations is a necessary condition as far as efficient management is considered. Transit managements on the acquisition of such a data base can confirm predictions about scheduling, receive warnings about potential dangers and plan future operations on a much broader and precise base. Data from passenger counts provide essential inf....

By Sanjeev Shankar-Electrical Engineering-VT-masters-2013-03-12
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Precipitation over the eastern United States has been increasing in acidity, particularly within the last three decades. The average annual pH of rain in this area is about 4.2. The foliar surface, or phylloplane, of soybean can be damaged by rain acidified to pH 2.9. Simulated acidic precipitation has an overall inhibitory influence on soil microbial processes. The ....


By Joseph Marshall Murray-Plant Pathology-VT-masters-2013-03-12
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A slender body theory method developed for a body moving parallel to a wall in shallow water is extended to include angular orientation of the body to the wall. The method satisfies only the zero normal velocity condition on the external boundaries but does not take into account the effect of induced flows on the body itself. A spheroid and a Series 60, block .80 hul....


By Jared Lawrence Wells-Aerospace and Ocean Engineering-VT-masters-2013-03-12
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The purpose of this thesis is to provide a complete package for the synthesis and design of the RSSR spatial function generating mechanism.

In addition to the introductory material this thesis is divided into three sections. The section on background kinematic theory includes synthesis, analysis, link rotatability, transmission quality, and branching analysis....


By Robert L. Williams-Mechanical Engineering-VT-masters-2013-03-12
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