Train monitoring methods have been increasingly enriched along with the development of high-speed railway system. Combining the Internet of Things with train monitoring becomes a tendency. However, an external power source, such as a supercapacitor or Li-ion battery, is needed for sensors and other electronics for communications. As time goes by, this kind of traditional power supply mode becomes more and more unpractical and unfavorable, mainly for the limited battery lifetime, large scope, messy arrangement of wires and potential environmental hazards.

The Plasma Physics Team is devoted to the study of controlled magnetic confinement fusion. The team, based mainly on the Institute of Fusion Science (IFS), has signed a collaborative agreement in year 2017 with National Institute for Fusion Science (NIFS), Japan, to jointly construct the Chinese First Quasi-axisymmetry Stellarator (CFQS) in SWJTU, China. The IFS is the “Research Base of Magnetically Confined Plasma Physics and Engineering” approved by the “International Scientific and Technological Cooperation Base in Sichuan Province” in 2019.

Smart adhesives possess a wide range of applications owing to their reversibly and repeatedly switchable adhesion in transfer technology. Despite recent advances, it remains a technical and scientific challenge to achieve strategies for rapidly tunable adhesion in a non-contact manner.

Combining the disciplines of mechanics and applications, the group led by Professor Xiangyu Li from Southwest Jiaotong University has developed and designed a smart adhesive. The adhesive has the excellent performance of switching adhesion rapidly, reversibly, and reproducibly.

A quantum symmetric pair consists of a quantum group and its coideal subalgebra (called an i-quantum group). A quantum group can be viewed as an example of i-quantum groups associated to symmetric pairs of diagonal type. Serre presentations, Serre-Lusztig relations (also called higher order Serre relations), and braid group actions are basic tools to study quantum groups.

Southwest Jiaotong University (SWJTU) firstly proposes and experimentally demonstrates a four-polarization division multiplexing scheme by proper manipulation of four linearly-polarized data channels with the same wavelength.

As the only power source for electric locomotives in rail transit, the safety and reliability of the traction power supply system directly affect the quality and safety of transportation. The main problems of current traction power supply technology in China include uncontrollable power quality, discontinuous train power supply, and difficulty in identifying faults, etc.

A framework was conducted to investigate the dynamics of overall vehicle–track systems with emphasis on theoretical modelling, numerical simulation and experimental validation by Prof. Zhai’s group at the school of Traction Power State Key Laboratory in Southwest Jiaotong University. This research was supported by National Natural Science Foundation of China (NSFC) and National Basic Research Program of China (973 Program).

Research conducted by Zhaoyuan Wang has proposed a fine-grained, safe, and energy-efficient strategy to improve the efficiency of metro systems by dynamically scheduling dwell time for trains.

System framework