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VTETD 檢索結果共 19439 筆,本頁資料從第 85 筆到第 96 筆

Naval operational planning is complex because it is dependent on uncertain future combat conditions. Effective decision making is directly related to the validity of assumptions regarding future combat scenarios and the appropriateness of selected procedures.

A two phase procedure for comparing multiple combat tactics is developed in this thesis. In the first ....


By Mahasweta Sen-Computer Science-VT-masters-2013-12-13
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Natural ventilation is an effective method to save energy required to condition buildings and to improve indoor air quality. Computational fluid dynamics (CFD) was used to model single-sided buoyancy-driven natural ventilation in a single room with a heater and door. The velocity and temperature profiles at the doorway agreed fairly well with published literature that i....

By David Park-Mechanical Engineering-VT-masters-2013-11-26
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Samples of soybean oil were centrifuged in a Sharples supercentrifuge at speeds varying from 15,000 to 45,000 revolutions per minute and with ring dam sizes of # 7 to # 9 in use in order to determine the effect of centrifuging upon the rancidity, odor, color, end taste of the oil. It was found that most of the rancidity could be removed, the taste improved slightly, the....

By William D. Feagin-Chemical Engineering-VT-masters-2013-11-15
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On the basis of this investigation the following conclusions were reached: l. Concrete subjected to partial loads during the early setting period continues to gain in strength after the partial load has been applied. 2. Concrete subjected to partial loads during the early setting period may have a twentyâeight day strength greater than it would normally have if no part....

By Michael Nicholas Salgo-Civil Engineering-VT-masters-2013-11-15
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This thesis presents the procedure which was followed in the design, construction, installation and calibration of a hot plate apparatus for the determination of the thermal conductivities of common insulating materials. No attempt is made to discuss heat flow through other materials, or that engendered by other means. Various types of hot plates, and different methods ....

By R. M. Johnston-Mechanical Engineering-VT-masters-2013-11-15
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The interest in nuclear physics and cosmic rays that has developed in America has caused wide use of the Geiger counter as a detector of charged particles and ionizing radiations. Work has been done to increase the reliability of the counter which has involved further work on the mode of its operation. Recent work which has developed improved manufacturing methods has m....

By Ben Warriner-Industrial Physics-VT-masters-2013-11-15
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The object of this investigation is to determine the efficiency of No. 6 boiler in the Virginia Polytechnic Institute Heating and Power Plant at various steam loads when fly ash collected by the cyclone separator is and is not returned to the furnace.....

By H. O Abercrombie-Power and Fuel Engineering-VT-masters-2013-11-15
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Market development is that function of commercial chemical development which develops uses for products and makes the initial introductory sales for such uses. Large chemical companies have expanded their marketing activities through the use of market development departments. However, the information available for a complete market development study is widely scattered.....

By Harry E. Ballance-Chemical Engineering-VT-masters-2013-11-15
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This study indicates that peanuts can be dried continuously using supplemental heat and still retain a palatable flavor. It has brought to focus many problems heretofore unrecognized. ....

By Buford Mullis Cannon-Agricultural Engineering-VT-masters-2013-11-15
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The object of this research investigation was to establish whether or not a correlation exists between bottle B.O.D. and CO2 liberated from a highly aerobic sewage-sludge mixture. The first part of the project consisted of reducing the number of variables in the operation to a minimum. To this end, considerable time and effort was spent finding the relatio....


By Wilfrid Carl Belschner-Sanitary Engineering-VT-masters-2013-11-15
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The purpose of this thesis project was to design and construct a free surface water table for the investigation of compressible-flow phenomena.

Although the design range of operation of the water table was to include all desired analogous Mach numbers between 0.40 and 7.00, the range of operation was limited by the formation of unwanted waves at the entrance ....


By Robert William Eberhard-Mechanical Engineering-VT-masters-2013-11-15
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The calculated values obtained from the standardization columns for conversion of optical density total to amount of amimo acid are listed in Table I. The values for leuciue and isoleucine are the average of the color yields of both amino acids, for both compounds were found to be slightly contaminated with each other. The value listed for beta-alaniine was calculated f....

By James Wallace Gill-Biochemistry-VT-masters-2013-11-15
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