Jiang studied electrical engineering at Jiaotong University in Shanghai, which left him with an interest in technology.

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Ulam Distinguished Scholar at Los Alamos National Laboratory and was named honorary professor at Xi'an Jiaotong University in China in 2004.

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Xue Zhi, a cyber-security professor at Shanghai Jiaotong University, tells Global Times that a Reuters report linking him to cyber espionage is "utterly ludicrous".

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"I think the bullet train system is not stable and may break down in extreme weather conditions, " said Professor Zhao Jian, a transportation expert with Beijing Jiaotong University.

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"In less than a decade, we constructed more high-speed rail lines than what it took Japan and Europe 40 years to build, " said Zhao Jian, an economics professor at Beijing Jiaotong University and one of the country's leading experts on rail transportation.

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Universities UK, which represents all UK universities, said it was difficult to compare international education systems - but other more established compilers of world rankings such as Times Higher, QS and Shanghai Jiaotong consistently rated the UK as second behind the United States.

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