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With widely adoption of online services, malicious web sites have become a malignant tumor of the Internet. Through system vulnerabilities, attackers can upload malicious files (which are also called webshells) to web server to create a backdoor for hackers' further attacks. Therefore, finding and detecting webshell inside web application source code are crucial to secure websites. In this paper,...
General grey Verhulst model for sigmoid process boasts good prediction accuracy. But the prediction accuracy is not high enough for fluctuant sigmoid process. In order to improve prediction accuracy, the grey Verhulst self-memory model was established based on grey system and self-memory principle. The model can recollect the historical data and get over grey Verhulst model's shortages. Examples show...
An engine health management system EHMZ which was developed for turbo shaft engines is introduced in this paper. The techniques which was utilized in the system including the system framework, statistical methods of monitoring parameters is discussed. Emphasis was put on the life damage prediction model proposed here. The system has been applied to gas turbine engines, which indicates that techniques...
The dynamic model of flexible manipulator arm having addition mass block on its end position is deduced in the first place,then several parameters of flexible manipulator arm impacted by its end position addition mass are enumerated,the effect of the end position addition mass on the parameters is exploded through route chart. it is favorable to subsequent analysis and computation that program calculation...
The actuator control system of teleoperation surgical robot requires high precision, fast response, strong anti-interference and as much as possible no overshooting. Aimed at these characters, combined with new developments of modern control theory and introduced Fuzzy Adaptive control theory to make the PID parameters to fulfill real-time adaptive adjustment. The purpose is to improve the dynamic...
The necessary and sufficient condition of input-output stability of control system and its significance to the desigan and control application of flexible manipulator arm are described in the place,then the necessary and sufficient condition of input-output stability is simplified to make the criterion simple and easy. It is pointed out in the end that the input-output stability criterion may be used...
In the paper, the whole frame and system framework of network services platform are studied and built, information services system for injection mould business is studied and built. On the basis of aforementioned studying, the network services platform that sales chains, supply chain, design and production cooperation in injection mould enterprises are integrated is developed. The services platform...
Grey relational analysis (GRA),as a comparison with numerical measure which cooperates the distance space with point-set topology, is very important in solving uncertain problems that with less data or data distribution unknown. Validation of simulation models is basic way to evaluate the credibility of simulation. Aiming at torpedo control system (TCS) simulation model's tactical indicators (TI)...
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