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According to the fact that the existing reliability prediction technology cannot well reflect the effect of processes under different operational conditions on reliability due to neglecting changes of reliability and failure rate with using time, a practical reliability prediction analysis model considering various operating conditions of the components of machining center is proposed by combining...
Condition-Based Maintenance (CBM) of the electric transmission and transformation equipments has been carried out gradually in the State Grid Corporation of China (SGCC). Equipments' risk assessment is a challenging work during implementing CBM, because the failure probabilities of equipments may vary with changes in the operating conditions, and hard to predict accurately. In this paper, the Time-Varying...
Multi-car elevator system is a revolutionary new technology for high-rise buildings, promising outstanding economic benefits. In this paper, it is analyzed the technical conditions, relevant parameters and engineering implements of the overstepping control in loop type elevator. By mean of mathematical analysis, the probability and the times are discussed which the follow car oversteps antecedence...
Cognitive radio is an effective way to improve the utilization of spectrum source. To improve the detection probability in cognitive radio, cooperative spectrum sensing has been proposed. In this paper, we propose a novel algorithm for cooperative spectrum sensing based on double threshold detection and Dempster-Shafer (D-S) theory. Double threshold is used in local detection, which makes the local...
In the circumstances that evidences are highly or full conflict, D-S evidence combination method may lose effectiveness, for this reason some improved methods of evidence combination are given in succession. Some scholars think, different evidence source is under different circumstance, so the importance of each evidence source is different. In the conditions that evidences are highly or full conflict,...
A well-known result in Bayesian inventory control is: if lost sales are not observed, the optimal Bayesian inventory level is no less than the corresponding myopic case, that is, the decision-maker should “stock more” to acquire the knowledge of demand. However, we find that when the stockout demand can be satisfied by some substitute product with a probability, the optimal Bayesian inventory level...
Channel estimation is an important technical issue in mobile communication system, the performance and capacity of mobile communication system are directly influenced by the speed and precision of channel estimation. This paper introduced the definition and the method currently existed of channel estimation firstly, and then proposed a method based on the probability of gain difference by the feature...
Multisensor information plays an important pole in the target recognition and other application fields. Fusion performance is tightly depended on the fusion level selected and the approach used. Feature level fusion is a potential and difficult fusion level. Bayesian fusion method is an important theory in feature level. A new method is presented to fuse infrared images and recognize object in the...
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