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At present, the existing trust protocols and models in the trust mechanism of the wireless sensor network have several problems such as one-sided reputation assessment, avoidless malicious evaluation from the nodes, and overfull subjective factors in the evaluation process. In order to solve these problems, a Reputation Model based on Similarity Measure of Trust Value in wireless sensor networks(RMSMTV)...
This paper analyzes the chaotic dynamical characteristics of Chua's oscillator. In the oscillator, a memristor and a negative conductance are substituted for the Chua's diode. The memristor is a magnetron which having smooth curve. Then the chaotic dynamics equations of the oscillator are obtained which derived from the Chua's oscillator circuit, and the dynamic characteristics are analyzed: phase...
A kind of the real-time temperature monitoring system is developed to safeguard the safety of the joint less rail. The design of hardware and software of the system is introduced. The temperature data collected from sensors of the department of the system is sent to the central department by GSM modules in the way of SMS. GSM module of the central department receive the data and transfer to PC through...
The steady-state stability of UHV demonstration project is low due to large interconnection impedance. In this paper, a DC emergency power control strategy is proposed to improve UHV demonstration project transmission capability by using DC fast adjustment to restrain the tie -line power variation and decrease UHV power oscillation peak value. The simulation results show that the North and Central...
A new fast calculation method of tie-line transmission power limit under transient stability is presented in this paper by studying the relationship among tie-line transmission power limit under transient stability, power impact in tie-lines from post-fault accelerating power and static stability power limit of post-fault power system. The method lays the foundations of above-mentioned relationship...
With the aim to accurately take into account effect of dynamic loads in power system security simulations, investigation works get underway for representing a group of three-phase induction motors by an equivalent single-unit model or two-machine model. Inherent mechanical and extrinsic voltage characteristics of the induction motor are illustrated firstly. Based these characteristics, a method for...
Single Sign-On is one of the more popular enterprise business integrated solution currently. For the complex self-domains across different application requirements, the article researches the traditional single-point sign-on system, and presents a combined access control model. The main form of the model is implemented on Web-service. It extends RBAC access control model, proposes R-R role mapping...
In this paper a computer-based modelling technique is presented to aid the development of novel mechanical tests. In particular, finite element technologies are applied to assist the development of a novel bending test on simply-supported oval sandwich plates with the aid of a 32-bit personal micro-computer. The parametric study of plate eccentricity by finite element analysis proves clearly that...
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