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Based on the field failure mechanisms in smart electrical energy meters, field operating abnormal data and maintenance data were analyzed. Discrimination analysis for field data was screened for predicting residual life. Through thoroughgoing analysis, field failure data, failure modes, failure mechanisms and external inducing stresses as well as their features with time were analyzed. Then the degradation...
There are many challenges to provide telecommunication services. The reliability is one of the most important challenges. Telecommunications systems require 99.999% reliability, which means that system only tolerant of downtime about 5 minutes per year. To achieve such high reliability, multiple servers and a shared database are deployed for a Session Initiation Protocol (SIP)/ IP Multimedia Subsystem...
This paper introduces the scheme for protection based on the needs of DG growth and automatic device control, which is to minimize fault duration, to prevent the DG damage by changing the substation grounding mode, configuration of protective device, the scheme for fixed value setting, automatic switch-on device and low-frequency low-voltage separation mode. Among them, the corresponding "Islands"...
The 3rd Electricity reform in UK has been implemented which includes capacity markets. Among many parts of capacity market, the demand side is the key part for government imposing their force on promoting the market into the planned direction which is to meet the reliability standard. This paper gives a brief overview on demand side of capacity markets in different countries, and compares creatively...
Fluorodeoxyglucose positron emission tomography (FDG-PET) studies report characteristic patterns of cerebral hypometabolism in probable Alzheimer's disease (pAD) and amnestic mild cognitive impairment (aMCI). This study aims to characterize the consistency of regional hypometabolism in pAD and aMCI patients enrolled in the AD neuroimaging initiative (ADNI) using statistical parametric mapping (SPM)...
The feedback filtering is a key issue to the reputation evaluating in Peer-to-Peer networks. The existing models usually focus on filtering out the fake feedback at the trustor's side. However, even the most honest recommender could submit feedbacks with low quality. In this paper, a new reputation evaluating model is proposed. The model filters the feedback not only at the recommender's side but...
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