Traffic congestion has become a critical issue in developing countries,as it tends to increase social costs in terms of travel cost and time,energy consumption
<正>As one of the oldest universities of modern China,Southwest Jiaotong University has experienced its grand journey transcending 3 centuries,witnessing18 relo
With the increasing railway vehicle speed,pantograph–catenary(PAC) system has become an important part as its incidents still stand among the principal causes