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VTETD 檢索結果共 19439 筆,本頁資料從第 193 筆到第 204 筆

The results of the theoretical and experimental investigations allow some conclusions to be drawn:

1. The program can handle irregular rooms including room boundaries with slanted surfaces.

2. The ray tracing plots can indicate areas where absorption material may be added to reduce sound levels at a given receiver location.

3. The sound pressur....


By Bruce Wayne Mitchell-Mechanical Engineering-VT-masters-2013-03-13
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Two sizes (2x4 and 2x10) and two grades (2250f-1.9E and No. 2 KDl5) of Southern Pine lumber having three different test span lengths of 30, 90 and 120 inches were tested in tension parallel-to-grain. Results obtained from the tests indicated that the tensile strengths of the 30-inch test specimens were significantly higher than the tensile strengths of the 90- and 12....


By Karen L. Showalter-Agricultural Engineering-VT-masters-2013-03-12
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Twenty first-calf heifers and 24 cows in their second or greater lactation were randomly assigned to 4 dietary treatments from day 15 to day 61 postpartum. Mixed diets consisted of corn silage, alfalfa haylage, orchard grass hay, and a pelleted concentrate. Concentrates were control (C), C + additional corn (H), C + 4% calcium stearate (S), or C + 4% tallow (T). C, S....


By Laurie A. Bower-Dairy Science-VT-masters-2013-03-12
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Effects of container geometry and material on microwave cooking performance, as measured by evenness of cooking, firmness, and moisture content were compared. Three food items were heated in round, tube, loaf, and square containers made of clear glass, amber glass, thermoset polyester, and polysulfone. Unflavored gelatin, custard, and cakes were prepared three times ....


By Judith D. Barber-Housing, Interior Design, and Resource Management-VT-masters-2013-03-12
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This project reviewed the ability of hydrilla to release THM-precursors should this plant become established in the Occoquan Reservoir. It was found that the Occoquan Reservoir could support hydrilla. Three sources of THM-precursors were found to result from hydrilla. These included: 1) extracellular products (ECP) from hydrilla itself; 2) ECP from periphyton that colon....

By Mark A. Carlson-Environmental Engineering-VT-masters-2013-03-12
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Bayesian estimates of gross cubicâfoot volume per acre were computed for four stand types (plantation pine, natural pine. hardwood. and mixed wood stands) using aerial photo volume tables as the prior information source. Aerial photographs provided a reliable source of information even though most photographs were nearly five years old.

For a given level of ....


By Mary F. Bleier-Forestry-VT-masters-2013-03-12
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Religion has traditionally provided the individual with a sense of meaning, belonging and comfort, and is commonly assumed to provide a basis for sound mental health and general well-being. Empirical research supporting this notion has, however, been less than convincing.

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By Deborah C. Bryant-Sociology-VT-masters-2013-03-12
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A derivation of the MichaelisâMenton growth kinetics model is developed to simulate batch fermentation of glucose to ethanol using yeast.....

By Richard Allen Miller-Chemical Engineering-VT-masters-2013-03-12
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Of the 394 urban women, over three-fourths (77.4 per cent) were users of pesticides, whereas almost one-fourth (22.6 per cent) were non-users.

The ages of the respondents ranged from 15-19 years to over 70 years. The median age for users was 48 years and 51 years for non-users. There was no significant difference in the ages groups of users and non-users.

....

By Frances Hilt Graham-Extension Education-VT-masters-2013-03-12
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The classical and most frequent use of the discriminant function is for the purpose of classification, by obtaining a combined measurement such that the difference between two or more groups is as large as possible. The linear discriminant function for the special case of two groups was first discussed by R. A. Fisher (see [7]). A systematic generalization of the con....


By Robert Arthur Bales-Statistics-VT-masters-2013-03-12
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1,032,438 Jersey and 1,162,578 Holstein official Dairy Herd Improvement Association (DHIA) records from 20,380 and 34,000 herd-years, respectively, were used to compute herd-year means and within herd-year standard deviations for individual mature equivalent (ME) milk, fat, and fat percent. These herd-year means and within standard deviations were used to stratify re....


By Todd Richard Meinert-Dairy Science-VT-masters-2013-03-12
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The objective of the present study was to investigate the use of a video game task in comparison to _a pursuit tracking task for the purpose of· detecting alcohol impairment. To carry out this objective, the two tasks used in this study were compared for difficulty in Phase I. The conclusions from Phase I are: 1) that subjects selected higher RPM's to represent a ....


By Stan Kidd-Industrial Engineering and Operations Research-VT-masters-2013-03-12
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