نتایج جستجو برای: high speed trains

تعداد نتایج: 2193478  

2011
D. Emery

Some parts of the European high speed line network are near saturation. ETCS-L2, the so called Level 2 of the European train control system, standard for providing signalling and automatic train protection (ATP) on new high speed lines (HSL), offers a pretty good level of capacity. However, even with the mobile block system provided by ETCS-Level 3, it seems quite impossible for the practical c...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی برق و کامپیوتر 1391

this thesis is presented 10 ghz voltage controlled ring oscillator for high speed application. the voltage controlled ring oscillator was designed and fabricated in 0.13یm cmos technology. the oscillator is 7-stages ring oscillator with one inverter replaced by nand-gate for shutting down in the ring oscillator during idle mode. tri-state inverter was used to control of 126 bit vector in ri...

2011
Jiamin Zhang Baoming Han Lei Nie

Railway capacity is not only the basic condition for the allocation of railway resources but also an index set for the evaluation of the usage of them. Sometimes the maximum theoretical results calculated according to the coefficient methodology for the capacity calculation of the Existed Chinese traditional railway (abbreviated as ECTR) would be less than those statistical results from the rea...

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