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 11 of 11 for “"time-dependent phenomena"”.
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Quantitative modeling of time-dependent phenomena in the magnetospheric magnetic field
… improves the determination of storm-time fields in the inner magnetosphere. Replacement of the tail current module with a more flexible representation also contributes to improved accuracy in the inner magnetosphere, and enables realistic variations in current strength and orientation …
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Plasma velocities in the Heliosheath and the influence of the interstellar wind
… We consider steady state flows as well as time dependent phenomena, and we show that a transient event with no obvious cause or direction takes a particularly simple form in IHC.
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The development of a rapid chloride test for concrete and its use in engineering practice
… solution and re-tested at later ages to study time-dependent phenomena such as chloride binding. The chloride conductivity test involves the standardisation of the concrete pore solution by vacuum-saturating a concrete sample with a 5 M NaCl solution. A single conductivity measurement of the …
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Macro and nanocreep of self-consolidating concrete
… These applications are known to be sensitive to time-dependent phenomena such as creep and shrinkage. Therefore, it is important to understand the creep and shrinkage behavior of SCC compared with other types of concrete. This research presents macro and nanoscale creep experiments used for a …
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Making better binary models and modeling distorted black holes using black hole perturbation theory
… black hole orbits, which enables us to look at time-dependent phenomena on the horizon. In particular, we find significant offsets between the applied tide and the horizon's response, as well as small amplitude coherent wiggles in the horizon's shear response to the applied tide. These appear to …
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Time Dependent Properties of Semicrystalline Poly(Arylene Ether Ether Ketone) (Peek) Above and Below the Glass Transition
Long time annealing of semicrystalline PEEK above the glass transition results in the observation of several time dependent phenomena - "physical aging", "secondary crystallization", "multiple melting" of lamellae with different thermal stability etc. Their interrelation - common origin and …
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The adaptive time-dependent density matrix renormalization group method : development and applications
… we develop a new numerical method, the adaptive time-dependent density-matrix renormalization-group (adaptive t-DMRG), which turns out to be very well suited to investigate time-dependent phenomena in one-dimensional strongly correlated systems. The method is based on the original density-matrix …
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Zeitabhängige Phänomene in athermischen Formgedächtnislegierungen
… are particularly suited for measurements of time dependent phenomena. Firstly optical measurements of Laser light reflectivity were conducted in order to measure incubation time as well as the stability of the phase transition temperatures Ms, As and the corresponding hysteresis width B. All …
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Modeling Macro-scale Clay Behavior at Micro-scale Clay Particle Interfaces
… the macro-scale compression of a clay soil over time. Clay particles in consolidation tests experience shear and normal forces at the inter-particle level due to force applied to the soil at the macro-scale. These shear and normal forces cause the particles to slide at the micro-scale and produce …
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Stochastic simulation of power systems with integrated renewable and utility-scale storage resources
… the grid. The challenges of integrating such time-varying, intermittent resources has in turn sparked a growing interest in the implementation of utility-scale energy storage resources (ESRs), with MWweek storage capability. Indeed, storage devices provide flexibility to facilitate the …