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Dependence of the potential barrier height φB on the biased voltages of static induction thyristors (SITh) is studied by using the numerical simulator SG-framework, concentrating on the forward blocking state, and an exponential relationship is presented through a normalized approach. The I–V characterize is of SITh is calculated by simulation and explained by potential barrier height. The cathode...
Active safety is an important feature of a modern vehicle to provide precaution warning or compensatory control before the pre-crash stage of vehicle safety. All vehicle signals and information are acquired by several in-vehicle sensors on ECUs or surrounding vehicles, and integrated in vehicle gateway through in-vehicle or vehicle-to-vehicle communications. The information exchanged among the host...
In order to solve the data integrity, non-repudiation, confidentiality and operation inefficiency of the mobile e-commerce, in this paper, mobile e-commerce security model is established. The design is based on mobile e-commerce architecture, analyzing the digital signature authentication process and data security transmission procedure in the system. Delamination modularized software design method...
In order to solve the problem of security gap in the transmission of mobile E-commerce information through WAP gateway, a double layer encryption schemes based on WAP is proposed, which combines with WAP security architecture and mobile E-commerce security architecture. The data is encrypted with the public key of application server on the mobile terminal firstly, and then the encrypted data is encrypted...
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