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In the electronic commerce area, the network intrusion happens frequently, and the risk assessment model of network intrusion for the electronic commerce is researched. Currently, the complexity of electronic commerce network intrusion is increasing day by day, and all kinds of potential relevance factors are becoming more and more complicated. The traditional methods access the security of network...
To strengthen the parts universality of a series of passenger cars and improve a passenger car ride comfort, the elastic components and the installation location of the vehicles are optimized. The optimization scheme of widening, lengthening the rear suspension leaf spring, and narrowing diameter of the front suspension torsion bar spring are analyzed, then the front and rear suspension stiffness...
When small sized isolated power systems or micro systems appear fault, impacts of the frequency's deviation on the power system is not ignored most of the time. Taking the real and separated power grid as the research object, a new method which considers the frequency characteristic of load to identify load's parameters is proposed. Two curves of frequency dynamic are simulated using the static load...
It is expected that increasing amounts of new generation technologies will be connected to electrical power systems in the near future. Most of these technologies are of considerably smaller scale than conventional synchronous generators and are therefore connected to distribution grids, as the DFIG-based wind farm. When connected in small amounts, the impact of wind farm on power system transient...
Reliability Validation and Verification (V&V) has become a major issue in every industry nowadays. In the development of an embedded system, it is important to be able to determine if the system meets specifications and if its outputs are correct. This is the process of V&V. Airbus applied this V&V process in safety assessment on A380 from aircraft level to supplier level. Aircraft level...
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