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Zhang, R. (author)
This research work aims to gain understanding of the power amplifier (PA) operating as a linear PA under low power drive conditions and as a switch-mode PA in high power drive conditions both with the same Class-E load. Two approaches were taken here. Firstly, an analytical approach was developed to investigate the switching operation of...
master thesis 2010
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Zhang, X. (author)
The site Dashilan is the most sever UHI area of Beijing currently. Located in the center of Old Beijing, it is consist of historical courtyards with flourish old brand commercial and many cultural heritages. High density (15m2/house), almost fully covered by concrete without enough green space, make this area really have a bad living quality and...
master thesis 2010
document
Zhang, T. (author)
Direct drive generators applied to large wind turbines present some problems, such as very heavy and expensive price. The use of magnetic bearings has a possibility to reduce the weight of the direct drive generator. The control system for such magnetic bearings is considered. In the beginning, the thesis discusses the problems of direct drive...
master thesis 2010
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Zhang, J. (author)
The aim of this thesis project is to design and fabricate a high efficiency on chip cooling device based on the Peltier effect. Bismuth telluride (Bi2Te3) and antimony telluride (Sb2Te3) are employed to form thermocouple for their high Seebeck coefficient and high figure of merit. The models of the devices are simulated in the software program...
master thesis 2010
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Zhang, W. (author)
Sponsored by the Consumer Science department in Groupe Danone France, this design project is aiming to use a Multisensory Design (MSD) approach in developing a new packaging for the ‘Replenishment’ platform in Danone water division. The main design goal is to create a particular drinking experience that could better communicate the most relevant...
master thesis 2010
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Zhang, W. (author)
This master project is about finding applications for ADA. ADA stands for a brand new technology named Active Digital Aura, which was invented by Philips. It is a kind of technology enable the data transfer via body skin, and accordingly make it possible that the human intuitive touch in everyday life can be the trigger of itself. The whole...
master thesis 2009
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Zhang, T. (author)
Conventional RF power amplifiers are normally designed for peak efficiency at maximum output power. However, for WCDMA application, the power amplifier often operates at 6-8 dB power back-off. Consequently, when the power is backed-off from its peak point, the efficiency of conventional power amplifier drops sharply. The envelope elimination and...
master thesis 2009
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Zhang, Y. (author)
Improve software security evaluation by combining fuzzing and genetic algorithms.
master thesis 2008
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Zhang, W. (author)
master thesis 2005
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Zhang, Y. (author)
master thesis 2005
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Zhang, X. (author)
master thesis 2005
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