Interfacial phenomenon appears frequently in practice. It plays important roles in various fields of science and technology. In order to make a clear understanding on the characteristics of an interface, a molecular dynamics simulation (MDS) was performed. The simulation results show that there exists a transition layer between the coexisting phases in which thermodynamics properties changes continuously. On the other hand, according to the fractal theory it is considered that the interface is not a smooth surface but a fractal one. The fractal dimension of it is calculated in the paper by the aid of the general approach provided in fractal theory. Furthermore, a relation between interface tension and fractal dimension of the interface was advanced. The surface tension thus obtained agrees well with the experiments.
In this paper, we present the Intelligent Binary Tree Search anti-collision algorithm (IBTS). It is an optimized algorithm based upon a Dynamic Binary Tree Search anti-collision algorithm (DBTS). Our performance evaluation shows that IBTS surpasses other existing DBTS algorithms. According to our simulation results, the total identification time of IBTS algorithm is reduced by nearly 50% for 50 tags compared to DBTS algorithm. Moreover, with the increasing number of tags, IBTS algorithm has higher performance and less identifying time than DBTS algorithm. It has been applied to RFID transponder chip designed by ourselves and successfully fabricated in SMIC 0.18um process.
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