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The paper presents an innovative design scheme of the removable metal-enclosed switchgear, in which the three-phase main circuits are longitudinal layout if looking from the front of the cabinet, and the main circuit is mainly composed of tubular conductors, with a linear moving disconnector on each side of the vacuum interrupter. The reasons for this design and the ways to achieve it are discussed...
In order to instead high performance xenon lamp light source in the study of photocatalysis, a design of the mechanical pulse beam control device is described in this paper. The MCU XS128 is used as the control core to control servo to achieve the shading and shining time control of the pulse beam. The Visual Basic 6.0 is used to develop PC control system. The communication module is E50-TTL-100 to...
As to the problem that it is difficult to estimate the parameters of Weibull mixtures accurately, a new parameter estimation method for Weibull mixtures based on the improved cuckoo search algorithm (CSA) is proposed. The optimization model, which is solved by the improved CSA, is established based on the idea of minimizing the residual sum of squares (RSS). The algorithmic improvement has three schemes...
Three dimensional (3D) integration technology, involving the vertical stacking of multiple chips using through-silicon vias (TSVs), has emerged as a promising solution to improve the performance of microelectronic devices. However, the complex structures and the consequent increase in power density exacerbate the challenge of thermal management in the device including multiple chips. In order to ensure...
This article discusses the influence of customer relationship proneness in hairdresser's context. Data are collected using online survey. A conceptual model about customer relationship proneness, relational benefits, customer commitment and customer loyalty is proposed to explain the influence. Structural equation modelling is used to analyze the data. Empirical results show that customer relationship...
Online Social Networks (OSNs) have become an integral part of daily life in recent years. OSNs contain important participants, the trust relations between participants, and the contexts in which participants interact with each other. All of these have a great influence on the prediction of the trust between a source participant and a target participant, which is important for a participant's decision-making...
Independent spanning trees(ISTs) have applications in interconnection networks such as reliable communication protocols, and secure message distribution, etc. In this paper, we use BIST to denote the IST isomorphic to binomial-like tree. We propose an algorithm to construct n BISTs and the algorithm can be parallelized on PQn to run in O(N) time, where N = 2n.
Broadcasting is the most common operation of data transmission in mobile Ad Hoc networks. The conventional blind flooding algorithm incurs the broadcast storm problem. Moreover, energy is critical for the life and the performance of Ad Hoc networks. In order to alleviate the broadcast storm, balance the node energy in network and provide broadcast reliability, a reliable broadcasting algorithm based...
A repairable system model which is consisted of two redundant robots and one safety unit is established in this paper. We are devoted to discussing the unique existence of the solution and the stability of the studied system by analyzing the spectrum distribution of the system operator in detail. Thus we can obtain stability analysis of the studied repairable system. Finally, some reliability indices...
In order to figure out problem of system with self-adjusting function, multi-state of system with self-adjusting function was analyzed, a method for degradation procedure simulation was put forward, and model of reverse state transition was presented. Basing on above analysis and model, a multi-state Monte Carlo simulation model was established. At last, a case of space camera multi-state analysis...
Over the past several years, a heterogeneous computing (HC) system has become more competative as a commercial computing platform than a homogeneous system. With the growing scale of HC systems, network failures become inevitable. To achieve high performance, communication reliability should be considered while designing reliability-aware task scheduling algorithms. In this paper, we propose a new...
Independent spanning trees(ISTs) have increasing applications in fault-tolerance, reliable communication protocols and secure message distribution. In this paper, we propose an O(N) parallel algorithm to construct n BISTs rooted at any vertex on n-dimensional twisted cube, where BISTs denote the ISTs isomorphic to binomial-like tree and N =2n.
Degradation test is an important technique to assess the failure time distribution of complex systems and high reliable products. The effectiveness of a degradation model depends strongly on the appropriateness of the model describing the degradation process. In this paper, a new degradation model is proposed, in which the characteristics of the widely-used stochastic process model and degradation...
With the development of the society, distance education and training gradually shows some characteristics similar to the service industry, such as invisible, cannot be stored, heterogeneous, serving and consuming in the same time and so on. To gain a bigger market share in competition and more reputation and brand value in development, distance education and training institutions must pay great attention...
In order to alleviate the node mobility problem which cause frequent link ruptures between source and destination nodes and data packets loss during transmission in Mobile Ad hoc Networks, we propose a new routing protocol called AD-AODV based on the famous AODV protocol. By introducing a novel metric M whose value depends on the hop number and average mobility of a given route, we improve the routing...
Based on the analysis of the reliability and energy-consumption in WSNs, In this paper, we propose a cross layer-based MAC protocol abbreviated as CoDyMAC(Cross-layer and Dynamic balance energy-consumption MAC). CoDyMAC realizes multi-hop data transmission in a listen / sleep cycle by utilizing the interactions among MAC, Routing and Physical layers, and meanwhile introduces the selection mechanism...
Network virtualization is viewed as a promising way for overcoming the ossification of the Internet. Virtual network mapping plays an important role in building virtual networks. The substrate network conditions change synchronously when the process of virtual network mapping, when a network failure happens, virtual network mapping without protection may lead to virtual network service interruption...
In order to analyze the impact of multi-functional support equipment failure, tasks of multi-functional support equipment during maintenance process were described, and maintenance plan of multi-functional support equipment was taken into consideration. Maintenance support process model considering multi-functional support equipment failure was put forward, and thereafter a simulation model was built...
Correlation coefficients are dominant indexes of measurement instrument quality. Among the varieties of correlation coefficients Pearson product moment correlation coefficient is the most popular. That is why intraclass correlation attracts relatively less relation. But in certain conditions, Pearson product moment correlation coefficient is not effective and intraclass correlation takes advantage...
Analysis on materiel support process considering failure of support equipment was presented. Basing on queuing system of priority, a virtual costumer which has a priority in service was created representing support equipment failure. Maintenance process model considering support equipment failure was established. Comparing to traditional models, the impact of support equipment failure was revealed...
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