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Articles by Shuo Zhang
Total Records ( 4 ) for Shuo Zhang
  Qaisar Rasool , Jianzhong Li , Shuo Zhang , Ehsan Ullah Munir and George S. Oreku
  In this study, we present a review of replication techniques that work under peer-to-peer, hybrid and domain-based approaches for Grid environment, with specific emphasis on replica placement. We identify that peer-to-peer technology is contributing a high proportion in Grid data management and replication. A representative set of replica placement schemes were simulated and compared to show their effectiveness.
  Shuo Zhang , Qiang Yu , Chenyu Zhou , Peilong Shi and Peipei Zhang
  The control strategy of Active Front Steering (AFS) which equips vehicle is presented in this study. The proposed control strategy of AFS is designed to meet the demand of the steering characters and control stability of the vehicle. This strategy contains the controller of the variable transmission ratio and the controller of vehicle stability. The first controller applies the fuzzy sliding-mode control method to controlling the angle of the electromotor in order to realize the variable transmission ratio. The second controller put the fuzzy PID control method into use to keep the vehicle stable. According to the two degrees of freedom vehicle model, based on controlling of variable transmission ratio and the yaw velocity, the model of AFS controller is established. The performance of the AFS controller is evaluated by computer simulation. The simulation results demonstrate that: the strategy of AFS makes the vehicle has a good performance of steering characteristics and effectively enhances the control stability, especially in aspect of the surrounding adaptive capacity and driving safety of the vehicle.
  Jin Wang , Xiaodong Zhang , Shuo Zhang and Yingzi Li
  Open source design is a new mode which is composed of many agents who spontaneously cooperate to complete product design. A process model of open source design based on multi-agent is proposed in this paper with the purpose of studying the dynamic characteristics of product evolution and the ability of design-agent in the process of product design. A set of indexes which can evaluate the process of product evolution and the ability of agent is developed, including the weight of each module, product maturity, completion time of module for each agent and development ability of the agent. The algorithms of indexes are realized and verified in the simulation program. The simulation results show that the proposed simulation approach and evaluation indexes are effective for evaluation and management of open source design.
  Shuo Zhang , Baixia Zhao , Xian Liu , Jibo Li , Zenggui Gao and Xinyang Huang
  Fusarium oxysporum is a main agriculture pathogen which is responsible for wilting in cucumber, muskmelon and watermelon. In order to study the genetic relationship and phylogeny of Fusarium oxysporum, 36 isolates were obtained from Liaoning province. The genetic relationship of Fusarium was determined by using EF-1α and β-tubulin DNA sequencing as well as a universally primed polymerase chain reaction (UP-PCR) analyses. The results show that all 36 isolates were identified as being infected with F. oxysporum by using the specific primers FOF1 and FOR1. Based on the combined sequence and UP-PCR data, the 36 isolates and GenBank isolates were classified into three major groups (Lineage1-3). These groups corresponded with the three clades of F. oxysporum. Inspection of the sequence data revealed Lineage 1 and Lineage 2 had similar sequences whereas Lineage 3 was significantly different from the other two. And this finding matched the results of UP-PCR analysis. However, the GenBank isolates were classified into Lineage 1 and none of the three techniques applied in this study provided host-related resolution for the pathotype isolates or the geographic origin of isolates. This study confirmed that phylogenetic groups have little connection with virulent groups.
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