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 1772 for “"time dependent"”.
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Time-dependent ventilated thermocline
In this thesis, I study the time-varying behavior of a ventila ted thermocline with basin scales at annual and decadal time scales. The variability is forced by three external forcings: the wind stress (chapter 3), the surface heat flux (chapter 4) and the upwelling along the eastern boundary …
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Time-Dependent Thermoconvective Instability
Made available in DSpace on 2014-12-08T23:18:29Z (GMT). No. of bitstreams: 1 7013328.pdf: 15174339 bytes, checksum: 14645920e63d51c7e51d4bb3a96893f6 (MD5) Previous issue date: 1969
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Time-dependent ventilated thermocline
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1992.
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Efficient time-dependent system reliability analysis
"Engineering systems are usually subjected to time-variant loads and operate under time-dependent uncertainty; system performances are therefore time-dependent. Accurate and efficient estimate of system reliability is crucial for decision makings on system design, lifetime cost estimate, …
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Time dependent changes in conditioned suppression
Thesis (M.A.)--Michigan State University. Dept. of Psychology,
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The instability of time-dependent jets
The central focus of my thesis is to study the instability jets of various complexity by analyzing the linear and nonlinear dynamics. We applied this methodology to four different situations in order to learn the following. First, what asymmetries develop between cyclones and anticyclones because …
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Instabilities of some time-dependent flows
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Meteorology, 1968.
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Implicit-explicit methods for time-dependent PDE’s
… systems arising from spatially discretized time-dependent partial differential equations. For problems with terms of different types, implicit-explicit (IMEX) schemes have been used, especially in conjunction with spectral methods. For convection-diffusion problems, for example, one would …
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Time-dependent reliability methodologies with saddlepoint approximation
"Engineers always encounter time-dependent uncertainties that ubiquitously exist, such as the random deterioration of material properties and time-variant loads. Therefore the reliability of engineering systems becomes time-dependent. It is crucial to predict the time-dependent reliability in the …
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Time-dependent Accretion Flows onto Black Holes
… flow parameters. But while the flow evolves in time, the transition radius drifts radially outward until this reaches its outermost allowed location, which is in agrement with previous steady models. A second major result is, that the transition region is highly unstable. Oscillating modes of …
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Time-dependent analysis of cable-stayed bridges
… method of construction and generally take a long time to build. In a concrete cable-stayed bridge, concrete properties change with time causing a change in the position of the neutral axis. In different parts of a concrete bridge creep and shrinkage develop at different rates which depend upon …
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Subcritical time-dependent response of Berea sandstone
… disturbances unfolds over extended periods, sometimes spanning months to years, giving rise to time-dependent deformation. Laboratory- and field-scale observations indicate that such time-dependent behavior can lead to significant changes in material properties, as well as the formation of micro- …
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Hydrodynamic approximation to time-dependent Hartree-Bogolyubov.
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Physics, 1979.
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Time dependent magnetization and magnetic loss tangents.
Massachusetts Institute of Technology. Dept. of Electrical Engineering. Thesis. 1972. M.S.
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Hydrodynamic approximations to time-dependent Hartree-Fock
Thesis. 1975. Ph.D.--Massachusetts Institute of Technology. Dept. of Physics.
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Time-Dependent Solution of the Generalized Fano Model
V této práci je rozebírán Fanův model, který popisuje diskrétní stav zanořený v kontinuu stavů, s konstantní vazbou mezi diskrétním stavem a stavy kontinua. Dále je studována jeho zobecněná verze s couplingem závislým na energii stavů z kontinua. Pro studium časového vývoje zobecněného modelu je …
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Orbital Functionals in Time-Dependent Density-Functional Theory
… short introduction the basic ideas of static and time-dependent DFT are presented in Chap. 2. In this chapter the advantages and disadvantages of common approximations for the exchange-correlation (xc) functional are also discussed as well as the basic ideas behind orbital functionals. In the …
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Time-dependent losses in post-tensioned prestressed concrete
… been undertaken into the factors affecting the time-dependent deformations, prestress losses and deflections of Class 1 uncracked prestressed concrete beams. The main influencing factors considered were environmental conditions, loading conditions,size and shape of members and concrete mix …
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Rate and time dependent behavior of structural adhesives
… the adhesives is shown to be significantly rate dependent. Further it is shown that a rate dependent stress-whitening (crazing) phenomenon occurs prior to the maximum stress. A region of elastic behavior, a rate and time dependent region, and a region of perfectly plastic flow are identified in …
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