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 12 of 12 for “"dynamic resistance"”.
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Dynamic Resistance of High-Tc Superconductor and Its Application in Flux Pumped Superconducting Magnets
… thesis first presents a thorough study on the dynamic resistance, the key driving force of the flux pumping phenomenon. Furthermore, it provides a brand new method to differentiate the dynamic resistance stage of High-Tc superconductors from the flux flow stage, which is necessary for …
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Small-signal analysis and design of a distributed power system
… concern is the effect of the second stage's dynamic impedance on the first stage's control loops. It is found that the negative dynamic resistance of the second stage gives rise to right-half-plane poles in the opened-loop gains of the first stage. Fundamental loop-gain analysis is used to …
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A Computational Tool for Seismic Collapse Assessment of Masonry Structures
… simplified and often tend to underestimate the dynamic resistance of the structures. This dissertation aims to bridge the gap between the two through the development of a computational tool for the seismic collapse assessment of masonry structures, which uses rocking dynamics to accurately …
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Comparison of Post-Activation Potentiation Methods on Power and Sprint Acceleration
… PAP methods on power and sprint acceleration in resistance trained, college-aged men and women. A total of 13 subjects participated in the study. After determining back squat 1 repetition max, subjects returned for testing on separate days to complete one of four interventions (dynamic …
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Resistance of a granular medium to normal impact of a rigid projectile
… linear relationship was found between the static resistance, C , and the dynamic resistance coefficient, B. The value of A is believed to be related to the comminution energy, and is not greatly affected by density changes in the sand. The stability of the projectile was found to be an important …
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An Experimental Study of the Dynamic Behavior of Slickensided Surfaces
… in the direction of shear, the available shear resistance is significantly less than that of the surrounding soil. During an earthquake, ground shaking often causes landslide movement. For existing landslides or repaired landslides that contain slickensided rupture surfaces, it is reasonable to …
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Investigations of nonlocal transport and current noise in mesoscopic normal metal-superconductor hybrid structures
… coincides with a steep increase in the nonlocal resistance. We determine the barrier strength at the NS interface by comparing the dynamic resistance to numerical calculations of the contact resistance based on the Keldysh-Usadel equations. The main finding of our work are symmetric, `W-shaped' …
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Fouling in membrane technology for produced water treatment: Assessing mechanisms, mitigation, and CFD Analysis
… due to their energy efficiency, chemical/thermal resistance, and low cost. The membrane can separate a wide range of oily wastewater effluents and deliver good permeate quality. While the membrane technology witnessed many improvements, membrane fouling continues to be a major drawback and is the …
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Flux Pumping for High-Tc Superconducting (HTS) Magnets
High Tc superconductors are enabling in the generation of extremely high magnetic fields. Flux pumping is a promising technology which can be used to operate HTS magnets without significant loss. In this decade, several HTS flux pumps based on travelling magnetic waves have been developed, yet …
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Laser beam induced current studies of Hg1-xCdxTe photodiodes
… carrier diffusion length, and the junction dynamic resistance. With the aid of developed theory, the diode zero-bias resistance area product, R0, and other related quantities can be obtained by analysing the majority photocarrier spreading length, Ls, from the LBIC profile. However, this …
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Flux Pumping for No-Insulation High Temperature Superconducting REBCO Magnets
… such as bypass current and characteristic resistance (Rc). This thesis studies the flux pumping technology for the no-insulation type HTS REBCO magnet, figures out the technical challenges, and improves the flux pumping performance for NI HTS REBCO magnet with a very low Rc. Chapter 2 …