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In this work the optimization-based, integrated concurrent design method is applied to the modelling, analysis, and design of a transportation fuel cell system. A general optimal design model considering both functional performance and production costs is first introduced. Using the Ballard Mark V Transit Bus fuel cell system as an example, the study(More)
The first low-IF fully-integrated tuner for DBS satellite TV applications was realized in 0.13 mum CMOS. A wideband ring oscillator based frequency synthesizer having a large frequency step was used to down-convert a cluster of channels to a coarsely defined low-IF frequency, while the second down-conversion to baseband was performed in the digital domain.(More)
In order to grapple with the continuously increasing demand on the multimedia traffic over high speed wireless LAN, we need a QoS-oriented MAC for wireless multimedia system. In this thesis, we propose a efficient centralized scheduled access MAC approach in IEEE 802.11 to satisfy multimedia traffic. There are two main algorithms to achieve the goal, queue(More)
A digital low-IF satellite TV tuner-demodulator SoC was realized in 0.13 mum CMOS using low power 200 MS/s eight bit pipeline ADCs. A discrete-steps delayed AGC loop using FET switched-resistors resulted in a 10 dB noise figure at max gain and +25 dBm IIP3 at min gain. The image rejection correction is continuously performed in the digital domain using an(More)
NAM, ATAF1/2, and CUC2 (NAC) proteins are plant-specific transcription factors playing essential roles in plant development and various abiotic stress responses. In the present study, we identified 173 full-length NAC genes in soybean which were phylogenetically clustered into 15 groups (NACa - NACo). The soybean NAC genes (GmNACs) were non-randomly located(More)
Whole-crop wheat (Triticum aestivum L.) as forage has been extensively used in the world. In this study, the effects of N application rates on the yields, nutritive value and silage quality were investigated. The N application rates were 0, 75, 150, 225, and 300 kg/ha. The research results indicated that the dry matter yield of whole-crop wheat increased(More)
We report a new nano-switching ESD protection mechanism and dual-polarity Cu/Si<sub>x</sub>O<sub>y</sub>N<sub>z</sub>/W nano crossbar array ESD structures. Experiments show full ESD protection featuring fast response of 100pS, ultra low leakage of &lt;;2pA and ESD protection of &gt;9A. New dispersed local ESD tunneling model and CMOS integration are(More)