Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 340 for “"openings"”.
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Temperature profiles around coal mine openings
Includes bibliographical references.
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Heat flow into underground openings: Significant factors.
This project investigates the heat flow from the rock into ventilating airways by studying various parameters. Two approaches have been used: laboratory measurement of thermal properties to study their variation, and analytic and numerical models to study the effect of these variations on the heat …
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Designing aero-acoustic wall openings for natural ventilation
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2001.
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Metapopulations and metacommunities in dry forest openings in southern Illinois
… in patchy habitats, such as in forest openings. Forest openings (commonly called barrens, hill prairies, or glades) are habitats found on ridgetops which are characterized by having thin or nutrient-poor soil, high sunlight exposure, and relatively low soil moisture when compared to …
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Analysis of Cylindrical Shells Containing Rectangular Openings With Stiffened Edges
Made available in DSpace on 2014-12-08T23:56:43Z (GMT). No. of bitstreams: 1 6612410.pdf: 3761683 bytes, checksum: 40f3b8fa552db58294fb1b4b78c47867 (MD5) Previous issue date: 1966
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Stability During Construction of Three Large Underground Openings in Rock
Made available in DSpace on 2014-12-08T23:56:54Z (GMT). No. of bitstreams: 1 6801730.pdf: 9941707 bytes, checksum: faebe15a2e6fa5ac21caaf558f4616dc (MD5) Previous issue date: 1967
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Analysis of Clamped Square Plates Containing Openings With Stiffened Edges
Made available in DSpace on 2014-12-05T17:37:29Z (GMT). No. of bitstreams: 1 6202951.pdf: 11019193 bytes, checksum: 0915099f803eb0a73eaf852ecd9319d8 (MD5) Previous issue date: 1962
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Optimizing openings through tall buildings to mitigate their crosswind response
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2025-05-01
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Monotonic and Cyclic Performance of Long Shear Walls With Openings
The effect of door and window openings on long timber framed shear walls was the subject of this thesis. Four different wall configurations containing various openings and one control wall with no openings were tested to examine ultimate load capacity and stiffness. All walls were forty feet in …
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Inelastic Seismic Response Of Reinforced Concrete Buildings With Floor Diaphragm Openings
… However, the influence of floor diaphragm openings: typically for the purpose of stairways, shafts, or other architectural features) has not been considered. In order to investigate the influence of diaphragm openings on the seismic response of reinforced concrete buildings; several 3-story …
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Elasic - Plasic Analysis of Underground Openings by the Finite Element Method
Made available in DSpace on 2014-12-08T23:56:36Z (GMT). No. of bitstreams: 1 6607797.pdf: 3949991 bytes, checksum: ce733d24de896d5c4f200a861a3a6d7c (MD5) Previous issue date: 1966
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An Analytical Study of the Time-Dependent Behavior of Underground Openings
Made available in DSpace on 2014-12-08T23:57:17Z (GMT). No. of bitstreams: 1 7000777.pdf: 5006222 bytes, checksum: 0f130a07e6db47279c99395fb9211bec (MD5) Previous issue date: 1969
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Do Women Ask? Gender Differences in Applying for Internal Job Openings
… differences in application to internal job openings. Importantly, in determining the rates of application, we have the advantage of being able to observe the risk set of potential applications in this setting. Our findings show few differences in application rates by gender, even when …
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Numerical Simulation of High Expansion Foam Into Conduits and Mine Openings
High expansion foam (Hi-Ex) is a firefighting technology that has been widely used for fire suppression in underground locations. Hi-ex foam can be applied remotely through boreholes from the surface reducing firefighter exposure to fires. Despite the experimental studies that have been carried out …
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MPM Modeling of Internal Collapse Under Levees Caused by Underground Openings
… initiation and progression of underground openings are explored with different geometries and under various soil conditions, including one-phase total stress formulation, one-phase submerged formulation, and two-phase fully coupled hydro-mechanical formulation. A sensitivity analysis is …
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Yield-line analysis and experimental study of reinforced concrete slabs containing openings
… with the fourth edge free. Three slabs contained openings at various locations while the fourth remained solid. The magnitudes of deflections were measured during loading and the final yield pattern and ultimate load were compared to those predicted by simple and advanced yield-line theory. An …
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Moment-rotation relationships of reinforced concrete beams with and without web openings
… relationships for beams with and without web openings. The web openings are made in the tension zone of the beams; they vary in size from one-third to two-thirds of the affective area. The range of steel area is from 1% to 3%.
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Effects of group selection and clearcut openings on wildlife in Appalachian hardwood forests
… the effects of group selection and clearcut openings on wildlife in the Jefferson National Forest, Virginia. Breeding birds were censused 1 year before and 2 years after harvesting at 20 group selection openings, 4 clearcut openings, 18 sites in the mature even-aged forest adjacent to the …
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Experimental and finite element analysis of a folded plate structure containing rectangular openings
… folded plate structures containing rectangular openings is summarized. A seven-plate aluminum model was tested under a uniform load of 40.26 psf. on the horizontal surfaces. Six different cases are analyzed by changing the number, size, and location of the holes. The results of only the two …
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