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 3423 for “"Switching"”.
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Extending the Birkhoff-von Neumann switching strategy to multicast switching
… Birkhoff-von Neumann (BVN) strategy for offline switching does not support multicast, as it considers only permutation-based switch configurations. This thesis extends the BVN strategy to multicast switching. Using a graph theoretic model, we show that the capacity region for a traffic pattern is …
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An empirical analysis of Malaysian housing market: switching and non-switching models
… (VECM), Vector AutoRegression (VAR), regime-switching (Markov-Switching),GARCH model and MS-GARCH, our result suggests that a semi-rational bubble does exist in the Malaysian housing market in 1997:Q1 to 1998:Q2. The deviations or fluctuations of the Malaysian House Price Index cannot be …
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Task Switching and Distractibility
In this thesis I examined the effects of task switching on people’s ability to ignore irrelevant distractors. Load theory proposes that distractor interference critically depends on the availability of executive control to minimise the effects of irrelevant stimuli (e.g. Lavie, 2000). Much work on …
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Opto-Electronic Switching Matrix
Made available in DSpace on 2014-12-08T22:24:28Z (GMT). No. of bitstreams: 1 6901373.pdf: 3003134 bytes, checksum: ca3a528b3a4d7d6c66cf323435b96acf (MD5) Previous issue date: 1968
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Switching-Loss Measurement of Current and Advanced Switching Devices for Medium-Power Systems
… portion of these losses are due to the use of switching devices themselves. Device losses can be apportioned to conduction loss and switching loss. It is commonly known and practiced that conduction loss can be reduced by driving MOSFETs and IGBTs harder with gate voltages closer to the maximum …
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Power Cycling with Switching Losses
… deals with a method to additionally heat with switching losses in a classical power cycling test, as it is often used for power semiconductors.The fundamentals of testing, switching behavior, thermal and electrical characteristics of semiconductors are covered.The core of the work is the …
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Human Action Switching in HIV
<p>We evaluated switching in human action/verb fluency to examine how it associates with other measures of executive functioning and with difficulties in the performance of IADLs in a HIV+ sample. Our sample was comprised of 29 HIV+ participants. All the participants completed measures of phonetic …
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Sensorimotor learning under switching dynamics
… for these results, we develop a parametric switching state-space model, in which the association between cues (control points) and contexts (dynamics) is learned from experience rather than fixed. We then extend this model to a Bayesian nonparametric switching state-space model, in which the …
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Power FETs in switching applications
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1980.
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Metal vapor vacuum arc switching
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Physics, 1984.
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An improved switching converter model
The nonlinear modeling and analysis of dc-dc converters in the continuous mode and discontinuous mode has been done by averaging and discrete-sampling techniques. The averaging technique is simple to use and averages the output voltage. The discrete technique is very complex and cumbersome, but …
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Task switching and short-term retention: The role of memory load in task switching performance
Shifting, which is the process of switching task sets between two or more tasks, incurs a cost: participants are slower and more error prone when a switch is required, relative to when the same task is performed in a sequential manner. Recent research in our lab has found a performance dissociation …
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A zero voltage switching boost converter using a soft switching auxiliary circuit with reduced conduction losses
… to reverse recovery of the boost diode and high switching losses caused by hard switching of the boost switch. Many variations of the original boost topology have been suggested to overcome these problems. The Zero Voltage Transition Boost converter is one such solution. In such a converter an …
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Applications of Molecular Switching and Logic
The Thesis begins with an introduction of molecular logic gates and switches induced by various stimuli in chapter 1. <br/><br/>Then a population analysis is presented in chapter 2 for polymer beads which are tagged with multi-valued logic gates, YES, (2YES + PASS 1), (YES + PASS 1), (YES + 2PASS …
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Resistance switching of electrodeposited cuprous oxide
<p>In this work, the resistance switching behavior of electrodeposited cuprous oxide (Cu<sub>2</sub>O) thin films in Au/Cu<sub>2</sub>O/top electrode (Pt, Au-Pd, Al) cells was studied. After an initial FORMING process, the fabricated cells show reversible switching between a low resistance state …
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"Trans-switching" of the electrodermal response
… purpose of this study was to investigate "trans-switching" through EDR conditioning. "Trans-switching" is a phenomenon which consists of a single CS evoking differential CRs as a function of the environmental background in which the organism is situated during CS presentation. Russian …
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Pulse Density Modulated Soft Switching Cycloconverter
… stage cycloconverters generally incorporate hard switching at turn on and soft switching at turn off. This hard switching at turn on combined with the slow switching speeds of thyristors (the switch of choice for standard cycloconverters) limits their use to lower frequency applications. This …
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Switching in bacterial gene expression networks
An ability of a bacterium to appropriately respond to its environmental cues ultimately decides its fate. Bacteria deal with the fluctuating environment as a population instead of individual cells. By allowing individual cells to stochastically switch between multiple phenotypes, the cell …
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Life -Span Changes in Task Switching
… presented here examine whether a specific task switching ability develops and declines at a different rate than general changes in processing speed and working memory capacity. Results suggest that processing speed alone, working memory alone, or a combination of these general abilities are …
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