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Rolling contact fatigue (RCF) was found on wheels of a type of Chinese high speed trains with a designed speed of 250 km/h. To understand its initiation mechanism and isolate the dominant parameters, a statistical analysis was first conducted based on observations of 47 trainsets. Subsequently, a monitoring test covering 2–3 periods of wheel re-profiling was performed in parallel with numerical analyses...
Dissolved Gas-in-oil Analysis (DGA) is used widely in the power laboratory and industrial field as a sensitive and reliable technique for the detection of potential incipient fault condition within oil-immersed power transformers. However, there is still no universally accepted interpretation method for DGA data. IEC 60599 and IEEE C57.104 standards provide some methods for the interpretation of DGA...
The stellarator fusion experiment Wendelstein 7-X (W7-X) is currently under construction at the Max-Planck-Institut für Plasmaphysik in Greifswald, Germany. Five normal conducting trim coils have been designed to allow for fine tuning of the main magnetic field during plasma operation. To limit the mechanical stresses in the coil, the proper functioning of the coil cooling system must be carefully...
Recognising and understanding the activities performed by people is a fundamental research topic in developing a wi de range of applications that would be societally beneficial. In this article, we present and discuss two research projects on human action recognition based on computer vision techniques. We also report an ongoing research project that focuses on learning human activities through low...
This study examines three project diversity, including project size, project member diversity, technical complexity; five critical success factors, including project objective and bound, top management support, project plan and monitoring, project user involvement, project communications; and six success criteria, including time, cost, quality, information quality, information use, user satisfaction...
Based on the techniques of power electronics, fault diagnosis and network, a remote monitoring and fault diagnosis system with combination of a three-layer C/S structure and Internet is presented, which achieves with high compatibility between different equipment. Furthermore, the paper focuses on the discussion about the structure of compatibility between systems, the compatibility design of remote...
Based on the techniques of power electronics, fault diagnosis and network, a remote monitoring and fault diagnosis system with combination of a three-layer C/S structure and Internet is presented, which achieves with high compatibility between different equipment. Furthermore, the paper focuses on the discussion about the structure of compatibility between systems, the compatibility design of remote...
Real-time risk assessment, forecasting risk trend and dynamic risk management are main contents of the real-time risk management. It is a new research field of information security technology. This paper proposes a novel approach to real-time risk management framework. The framework consists of real-time risk assessment, risk prediction and dynamic risk management. The real-time risk assessment module...
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