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Data placement scheme based on the generalized EVENODD array code was one of the most important choices for data storage systems to tolerate failures. The efficiency of the erasure code was directly related to the number of XOR operations during the encoding and decoding. We provided an improved decoding algorithm of the generalized EVENODD array code for correcting various triple node failures. It...
Classic rateless codes, such as Raptor codes and LT codes are long codes. But special applications such as multimedia broadcasting and Multicast Server usually require small length codes (a few hundred in size). In response to this demand, we propose a new construction method of small length rateless system codes. The generator matrix of our proposed coding scheme is a special 0–1 random matrix in...
In some special applications, the importance of different parts of a file to be transmitted such as video or picture is different and the important part (such as the format part) need be given prior protection. This is called unequal error protection (UEP). In this paper we propose a new coding scheme which can provide UEP by cascading new short-length rateless codes with RS codes. In our proposed...
We report on the design, implementation of a non-equal scheme in streaming media data storage. According to the characteristics of the streaming media and considering the human beings usage, our scheme combines n-way mirroring and erasure-coding together to storage streaming media data. It is make good tradeoffs between system fault-tolerance and sufficient quality of service streams. The system has...
As the Urban Mass Transit operating evaluation criteria are inconsistent, many design basis are non-uniform correspondingly. The domestic and abroad dynamical evaluation index of Urban Mass Transit are summed up in this paper, such as derailment coefficient, reduction rate of wheel load, acceleration of carbody, sperling's ride index, the wheel/rail vertical force, wheel/axis horizontal force and...
In this paper, the simplified method of erection monitoring technique of continuous concrete box girder is introduced including stress monitoring, deformation monitoring and line-shape monitoring. Taking the Shanzhixiang Bridge of Xinguang expressway as an example, the distribution of stress gauges, lever measurers and deformation points are presented in details, and the working procedure of data...
With the development of transportation industry, the number of times that overloaded vehicle pass through bridges increases day by day. Taking Shengli bridge as an example, the bridge model was established with finite element software in this paper. According to the vehicle parameters, the vehicle loading model was abstracted, and the process that overloaded vehicle pass through the bridge was simulated...
The problem of delay-dependent exponential stabilization of nonlinear delay systems subject to impulsive disturbance of input is investigated by employing Lyapunov functions. The nonlinear delay system is represented by the well-known T-S fuzzy model. The so-called parallel distributed compensation (PDC) idea is employed to design the state feedback controller. Sufficient conditions, which are dependent...
Two-dimensional principle component analysis (2DPCA) is a popular and fast feature extraction method. However, it doesnpsilat consider the outliers of the training samples. To address this problem, we present robust two-dimensional principle component analysis algorithm (R2DPCA), which gives a new weighted method for the evaluation of the total squared error. The solution for R2DPCA is also given...
This paper discusses the problem of robust fuzzy control for a class of nonlinear uncertain fuzzy impulsive systems based on T-S fuzzy model. In presence of parametric uncertainties and unknown impulsive matrices, a scheme of robust fuzzy control via linear matrix inequality (LMI) technique is proposed. The concept of parallel distributed compensation (PDC) is employed to design the state feedback...
The problem of robust fuzzy control for a class of nonlinear delay systems subject to impulsive disturbance of input is investigated by employing Lyapunov functions. The nonlinear delay system is represented by the well-known T-S fuzzy model. The so-called parallel distributed compensation (PDC) idea is employed to design the state feedback controller. Sufficient conditions for global exponential...
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