نتایج جستجو برای: high speed train

تعداد نتایج: 2217171  

Journal: :Journal of Applied Economics 2022

This paper analyzes the impact of high-speed train construction on enterprise innovation and its specific mechanisms by establishing train-city-firm level panel data constructing a multi-period DID model in China. The results show that, firstly, significantly improves enterprises, first can increase number patents local listed enterprises about 11.5%. Second, is mainly through internal human ca...

Journal: :DEStech Transactions on Engineering and Technology Research 2017

Journal: :TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan) 1973

Journal: :Proceedings of the Satellite Division's International Technical Meeting 2022

Magnetic train localization uses the characteristic distortions of Earth magnetic field from railway tracks. The is able to identify correct track and can solve an along-track location on In contrast GNSS, works in tunnels. order prove practicality method, a comprehensive experiment has been conducted. Therefore, high-speed equipped with 28 reference sensors such as wheel odometer, GNSS inertia...

Journal: :TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan) 1972

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