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dc.contributor.authorWu, Xingen_US
dc.date.accessioned2014-03-14T21:14:17Z
dc.date.available2014-03-14T21:14:17Z
dc.date.issued1992en_US
dc.identifier.otheretd-06062008-170507en_US
dc.identifier.urihttp://hdl.handle.net/10919/38413
dc.description.abstractThis study proposes an improved methodology for solving the semi-controlled ventilation network problem. After analysis and consideration of the objective and legal, technical and operation convenience factors, the semi-controlled network problem is formulated through a nonlinear nonconvex programming model. Using the special ordered sets variables, the nonconvex problem is linearized and then optimized by the modified branch and bound procedure where the automatic interpolation technique is used to improve the accuracy to which the each nonlinear function is approximated. The global optimality of the methodology is on the computational the~ry basis. And the applicability of the methodology to the generalized ventilation problem is investigated, and it is demonstrated with a number of examples. This study also compares the several methods which have been used so far to optimize the underground ventilation networks.en_US
dc.format.mediumBTDen_US
dc.publisherVirginia Techen_US
dc.relation.haspartLD5655.V856_1992.W84.pdfen_US
dc.subjectMine ventilation.en_US
dc.subject.lccLD5655.V856 1992.W84en_US
dc.titleOptimization of control device locations and sizes in mine ventilation systemsen_US
dc.typeDissertationen_US
dc.contributor.departmentMining Engineeringen_US
dc.description.degreePh. D.en_US
thesis.degree.namePh. D.en_US
thesis.degree.leveldoctoralen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
thesis.degree.disciplineMining Engineeringen_US
dc.contributor.committeechairTopuz, Ertugrulen_US
dc.contributor.committeememberHaycocks, C.en_US
dc.contributor.committeememberLucas, J. Richarden_US
dc.contributor.committeememberKarfakis, M.en_US
dc.contributor.committeememberMcPherson, M.en_US
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-06062008-170507/en_US
dc.date.sdate2008-06-06en_US
dc.date.rdate2008-06-06
dc.date.adate2008-06-06en_US


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