Recently, wireless communications using mobile device are growing rapidly. The most advantage of wireless communication is that user can transfer various information to anywhere at any time using mobile device. Howeve...
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In this paper,the work demands of the dispatchers in centralized centers were *** factors contributing to the work demands were defined preliminarily by specialist workshops and were determined using a series of metho...
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ISBN:
(纸本)9781467307864
In this paper,the work demands of the dispatchers in centralized centers were *** factors contributing to the work demands were defined preliminarily by specialist workshops and were determined using a series of methods in a field *** results of our investigation indicate that the total number of trains and frequency of communication are major roles in the total work demands of the ***,there are regional distinctions due to the presence of different technologies and network infrastructures.
This article proposes the fusion matching method for polyphonic music feature database which are extracted from music signal. The best way looking for the song is the tag based retrieval method using metadata like tit...
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In Ad-hoc sensor networks, it is very essential for sensors to know their own positions exactly which provide the context to sensed data. Sensors in Ad-hoc sensor networks enable to locate their positions from a relat...
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standard complex system reliability computation is an important topic for system *** approaches for reliablity analysis are fault tree analysis,true value table or minimal path *** can not solve many complex *** paper...
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standard complex system reliability computation is an important topic for system *** approaches for reliablity analysis are fault tree analysis,true value table or minimal path *** can not solve many complex *** paper introduces the method of Bayesian networks for reliablity *** complex systems bayesian networks can be built by a new *** the arithmetic of bullet elimination,every element of the systems can be analyzed.
As the end point of the power system,a distribution system directly connects with the *** reliability of power supply is directly related with ***,uncertainty of the original parameters of components may be caused by ...
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As the end point of the power system,a distribution system directly connects with the *** reliability of power supply is directly related with ***,uncertainty of the original parameters of components may be caused by lacking of statistical information and the statistic *** will inevitably produce large errors if we directly use these parameters for *** algorithm of interval numbers is used in this paper and the original reliability parameters are treated as interval *** the uncertainty of the parameters can be considered in the whole process of the reliability *** the same time the reliability interval indicator can be obtained.
Interval analysis and probabilistic method are investigated in this paper for compressive bar’s stable responses with uncertain *** to the set relationships and probability statistics theory,the relationship between ...
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Interval analysis and probabilistic method are investigated in this paper for compressive bar’s stable responses with uncertain *** to the set relationships and probability statistics theory,the relationship between above two methods can be analyzed by introducing Chebyshew *** compressive bar in certain equipment for example,analyzed it with interval analysis and probabilistic method,respectively,the results showed that interval analysis is more reliable than probabilistic method in the cases of less data and incomplete information.
Fault tree analysis (FTA) is a top-down approach for failure analysis,starting with a potential undesirable event called a TOP event,and then determining all the ways it can *** is the most commonly used technique for...
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Fault tree analysis (FTA) is a top-down approach for failure analysis,starting with a potential undesirable event called a TOP event,and then determining all the ways it can *** is the most commonly used technique for causal analysis in risk and reliability *** stage an important part of *** this paper,Fault Tree of the mask stage is built with “Mask stage doesn’t work” as the top *** assessment and qualitative analysis based on Fuzzy Logic are carried *** the importance of bottom events is calculated.
One-dimensional discrete wavelet transform is used to process the bearing fault signal in this ***,the bearing fault data is decomposed to *** the fault feature signal is *** order to detect the bearing failure and de...
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ISBN:
(纸本)9781467307864
One-dimensional discrete wavelet transform is used to process the bearing fault signal in this ***,the bearing fault data is decomposed to *** the fault feature signal is *** order to detect the bearing failure and determine the area of it,the reconstructed signal is processed by the Hilbert transform demodulation and spectrum *** results show that the frequency of failure point matches well with theoretical one using this *** method is simple and reliable and thus provides a scientific method for early warning and exclusion of failure.
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