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Service-based software systems (SBSSs) are widely deployed due to the growing trend of distributed computing and cloud computing. It is important to ensure high quality of an SBSS, especially in a strongly competitive market. Existing works on SBSS reliability usually assumed independence of service failures. However, the fact that resource sharing exists in different levels of SBSS operations invalidates...
A realistic 2GHz human in-head near-field path-loss (NF-PL) modeling approach is presented in this paper. Due to the facts that the EM near-field interactions and in-head NF-PL characteristic are fully reflected in the simulation system, which consists of a verified UWB antenna and a well-known head-phantom, the NF-PL parameters can then be extracted in terms of this rigorous simulated results. The...
Fault prediction for power equipment allows the maintenance personnel to know the operation conditions and the fault to be occurred in advance so as to reduce the risk of fault and the economic loss. The current fault prediction methods are generally based on physical model or stochastic model, which are used to evaluate the remaining life of equipment. However, in fact, there are many interference...
This paper begins with the basic working principle of the magnetically controlled reactor. Then it dedicates noumenal structure of the 380V/13A experimental prototype after which the magnetic circuit analysis of experimental prototype are given. Finally the so called four magnetic circuit equivalent model are established in PSCAD/EMTDC platform. The corresponding simulation research and experiments...
Digital instrumentation and control systems has been widely used to high-risk system, which changes the context influencing human performance, cognitive processes and human-machine interaction, thus lead to new human errors and error mechanism. This paper constructs the extended human error analysis model for analyzing the possible cognitive and action errors. And then human error causal factors are...
This paper describes part of our recent works on a project of China Southern Power Grid (CSG), which involves the simultaneous coordinated tuning of the three HVDC modulation controllers, with wide-area signals, in 2008's CSG to damp interarea oscillations. Due to the modeling limitation of HVDC control loops in small signal stability analysis, previous works on similar projects of CSG strongly depended...
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