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Fiscal policy in new open economy macroeconomics modelsGanelli, Giovanni January 2002 (has links)
No description available.
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The operation of the right to work lawsDempsey, Joseph Richard. January 1958 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1958. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 192-204).
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Modelling and control of stepping motor systemsClarkson, P. J. January 1987 (has links)
No description available.
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An enquiry into the possibility and implications of a closed temporal topologyWeir, S. I. January 1986 (has links)
No description available.
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An integrated approach to robust identification and controller design using H#infinity# optimisationJones, Nefyn Wyn January 1996 (has links)
No description available.
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Teaching about the use of color as a means of expression by black and white closed circuit televisionPlummer, Carlton B. January 1964 (has links)
Thesis (M.F.A.)--Boston University / PLEASE NOTE: Boston University Libraries did not receive an Authorization To Manage form for this thesis or dissertation. It is therefore not openly accessible, though it may be available by request. If you are the author or principal advisor of this work and would like to request open access for it, please contact us at open-help@bu.edu. Thank you. / 2031-01-01
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Effect of microstructure of closed cell foam on strength and effective stiffnessSue, Ji Woong 25 April 2007 (has links)
This research is concerned with the modeling and failure analysis of closed cell
foam with various scales of microstructure that is disordered due to defects. This foam
material is used for the forward bipod closeout on the space shuttle external tank. Three
dimensional finite element simulations of closed cell foams with various microstructures
are performed to study the influence of the geometric character of the microstructure (eg.
defect size and distribution) on the stiffness and failure behavior of the foam. First,
regularly arrayed cells are modeled for a reference to compare with the disordered
microstructure. For studying the effect of cellular microstructure, a discrete model is
developed where in every edge and face of each cell are modeled. Two types of defects,
point defects (void) and area defects (knot), are indicated from the examination of
BX250 and BX265 polyurethane foams. However, this research is focused on the point
defect.
Analyzing a material with such complex microstructure is especially
challenging in terms of computation power as well as required modeling techniques. A
finite element model consisting of only beam and shell elements was developed. Certain complications that arise from using beam and shell elements were resolved using novel
techniques. Stiffness predictions from the model agreed with data from the literature for
a wide range of relative densities. Parametric studies were performed to examine the
effect of different properties, such as relative densities and edge fraction, on the
effective stiffness, Von Mises stress, and buckling stress. The thickness of the face plays
an important role in the behavior of the foam material. Linear buckling and postbuckling
analyses were performed to understand the effect of local buckling on the effective
properties of the foam and stress concentrations.
A distorted multicell model was developed to analyze the effect of point defects
on the foam behavior. In particular, two geometric parameters, the defect size and the
defect density (or the distance between two defects) were varied to find their effect on
the stress concentrations and the effective stiffness of the foam. It is seen that the
discrete model that accounts for the foam microstructure reveals much more about the
foam behavior than a homogenous model.
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Constructing *-autonomous categoriesChu, Po-Hsiang January 1978 (has links)
No description available.
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A Structural Modelling Approach to Closed End Bond FundsSzaura, Stephen January 2013 (has links)
This thesis develops a model of closed end bond funds that helps us better understand a
recent finding in the literature. In 2012 Elton et al. published an empirical study of closed end bond funds (CEBFs) and they suggested that the use of leverage in CEBFs could explain the fact that these funds had higher returns than those of comparable open end funds. This thesis provides a framework for estimating the impact of leverage on expected return and risk in this context. We use a Merton type approach to model both unlevered and levered CEBFs. The assets of a CEBF are primarily risky bonds. Each of these risky bonds can be analysed in terms of options under the Merton approach. We create an unlevered CEBF model by extending Merton's model to a multi-firm framework to
represent a CEBF composed of several risky bonds. We then add leverage by assuming the
CEBF issues debt. This permits us to model the securities of a levered closed end bond
fund as compound options. The equity and debt of the CEBF can be decomposed into
options on a portfolio of options. This framework enables us to compute the expected rate of return and standard deviation of an unlevered and levered CEBF. We obtain results
that are comparable to those observed in Elton et al.
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Learning video preferences using visual features and closed captionsBrezeale, Darin. January 1900 (has links)
Thesis (Ph.D.)--The University of Texas at Arlington, 2007. / Adviser: Diane J. Cook. Includes bibliographical references.
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