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Historical catenary trip fault data of China high-speed railway (HSR) revealed that the risk of catenary trip varies distinctively in different time periods and different regions, and catenary trip fault risk has obvious characteristics of time–space differences. In order to represent and quantify the characteristics of risk, this paper proposes a risk index system for catenary lines of HSR considering...
With the continuous increase of corporate and personal needs of the Internet, the data center industry has entered a stage of large-scale planning and construction. It is expected that in 2015 the national market benefit of data centers will be more than 50 billion. As the business development, the power consumption of data center also increased year by year. But traditional technique and rough construction...
Since IEEE 802.11ad doesn't have any recovery mechanism for multicast technology at Media Access Control (MAC) layer, the lost packets can't be detected and retransmitted under the influence of interference, conflictions or other issues. Given this, a Multi-Leader Based Protocol (MLBP) is proposed to reduce the control overhead under the premise of improving the reliability of Millimetre Wave WPANs...
Risk-based method, which takes into account the probability and severity of contingencies, can be used to quantitatively assess the security level of power system, especially during severe weather. In this paper, a risk-based method to assess the dynamic security level of power system under typhoon weather is presented. The impact of typhoon on operational reliability of transmission lines is modeled...
Object storage system provides ocean space to hold a very large amount of data objects reliably and guarantee the clients to efficiently obtain their big data. In this paper, we propose a secure provable data possession scheme for object storage system, so as to enhance the security and efficiency through interactive verification and hierarchical structure optimizing. In particular, a new secure protection...
Based on the geometrical theory of the reliability index and taking advantage of an improved particle swarm optimization with simple parameter setting and high convergence speed, a movement precision reliability computation method of the main motion of internal combustion engine is presented. The proposed method avoids the partial derivatives calculation in the performance function, and it is suitable...
Given the reliability principles and failure mechanism of MEMS, this paper discussed the accelerated test from three aspects as follows: the connotation of the test including concept and meaning; the scope of application concerned with product levels for applicants in types of stress; test process includes the test objective determination, test stressing selection, the test profile designing, the...
Linear single-error-correcting, double-error-detecting (SEC-DED) codes used in the design of reliable memories cannot detect and can miscorrect errors with large Hamming weights. We propose protection for memory devices based on extended Vasil'ev codes. These nonlinear SECDED codes have a minimum distance of four, fewer undetectable errors and fewer errors that are miscorrected than linear codes with...
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