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While the lattice Boltzmann method (LBM) has attracted much attention in the area of CFD in recent years, it has also been recognized that it is both computationally demanding and memory intensive. Extensive studies on improving the performance of LBM have been carried out. In this work, various efficient implementation algorithms of LBM are investigated in terms of computational performance and memory...
The aliasing probability in single and multiple input Linear Automata Signature Registers has been widely studied under the independent bit error model. This paper examines aliasing in a class of Multiple-input Signature Registers (MISR), under the q-ary symmetric error model. By modeling the signature analyzer as two-state Markov process and four-state Markov process, we derived the close aliasing...
Peer-to-peer (P2P) systems can be classified into two categories: unstructured and structured. A crucial requirement for practical structured P2P systems is that they should be able to cope with system splitting and merging. To address this issue, we first present a randomized and fault-tolerance broadcast algorithm called RBA. It can inform all nodes in P2P system of splitting or merging. We analyze...
Virtual machines with advances in software and architectural support have emerged as the basis for enterprises to allocate resources recently. One main benefit of virtual machine is server consolidation. However, flexible and complex consolidation results in some unpredictable performance problems and introduces new requirements, such as proper configurations for scheduler and reasonable arrangements...
Network calculus is a new theory of network QoS which is developed recently, it is the application of the Min-Plus Algebra and Max- Plus Algebra in network analysis. With the aim to resolve the transmitting of the real-time dataflow and get a good performance in dataflow waving ,the network calculus theory is applied to the real-time industrial Ethernet. In the paper ,we gained the real-time arrives...
Effectual siRNA design is a pivotal question in RNAi research. However existing siRNA design guidelines are not very consistent with each other, and many have the limitation of universality, that is, many guidelines usually present poor predicting capability on independent siRNA datasets. In order to explore high universal siRNA design rules, first we collected as many siRNA valid data on various...
Web applications are the legacy software of the future. The Web application reverse-engineering process becomes necessary in order to facilitate the maintenance and evolution. This paper presents an approach to recover the architecture of web applications. The approach generates UML models from existing web applications through static and dynamic techniques. UML diagrams are extracted to depict the...
How much service performance of searching and transmitting is provided by P2P network for a concrete resource? How much success ratio and recall ratio of resourcepsilas searching of existing P2P network is? Rare research is deepened about those questions. This paper, for unstructured P2P network, construct P2P network queuing model, provide calculating method of service performance of concrete resource,...
Performance predictions from wireless networking laboratory experiments seem to dismatch what is really deployed. To generate realistic traffic is one of the major factors hampering researcherspsila ability to make reliable forecasts. This paper reports on the results of a multiscale analysis of traffic traces captured at an infrastructure 802.11g wireless network. The analyzed traffic is characterized...
In this paper, a cluster based hybrid architecture is proposed which not only combines the advantages of both cluster and flat architecture, but also introduces how to use multiple communication models in wireless sensor networks(WSNs). Furthermore, the hybrid architecture uses multicast to solve the problem of ldquobroadcast blastrdquo, and adopts deployment of heterogeneous sensors to solve the...
Reliability is one of the most important indicators for software quality. Among the present researches of software reliability, majority focus on the appliance of probability statistics model for the whole software system. Few work based on software model for analyzing the software reliability is learned. Reliability Petri Net (RPN) is presented in this paper. In RPN, transaction means the function...
CFD numerical simulation has often been performed to analyze the characteristics of the fluid field and design the measurement device like flowmeter. It needs parallel compute to improve the efficiency. The most important factor in distributed computing is cost and the small scale cluster with multi-core CPU is very feasible for parallel computation of CFD simulation. A small scale cluster with multi-core...
The high efficient of scaling operation for residue number system (RNS) with VSLI implementation plays an important role in RNS-based information processing systems. With the properties of moduli set {2n - 1, 2n, 2n + 1} we propose an efficient scaling scheme for this moduli set. Furthermore, the corrective factor for scaling a negative number is also introduced. The analysis shows that the proposed...
Incorporating knowledge into a statistical unsupervised model, an approach of semantic dependency analysis on Chinese is presented. Semantic units and part dependency relationships are identified based on knowledge first, and then analysis is given by training the unsupervised model with extended inside-outside algorithm. Despite F1 of the experiments is not better than that of supervised approach,...
In this paper,we discuss the quantitative extensions of event structures for LOTOS with stochastic nature. We give the non-interleaving semantics model for interactive Markov chains algebra(IMCA).It is shown that our stochastic models can be used to provide a compositional causality-based semantics to IMCA, and a event-based operational semantics is provided that is proven to coincide with various...
As Web services are the hotspot technology in heterogeneous application, Web services distributed management (WSDM) specification is being the focus one in the management domain. With its well-defined and extensible manageability capabilities applied for various network resources, we improved our originally proposed TcpSocket-based Topology Management System (TMS) in distributed WAN. Under the Ethernet...
In IEEE 802.16e system, mobile station (MS) is usually powered by battery. To save the limited power, IEEE 802.16e standard specifies sleep mode operation for power management.There are two significant performance factors in sleep mode operation, one is energy consumption, and the other is response delay. When MS wakes up by outgoing data frame from itself, only energy consumption is considered because...
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