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Cloud storage has become a active field of research with the development of Internet services. However, the corresponding billing system always cost users more money because of that the billing system is not suitable for the users' realistic application. To solve this problem, the author studied the existing billing system, analyzed the features of users and cloud storage providers, and proposed a...
This paper investigates how to define and construct a Lyapunov function for Boolean networks, and presents a number of new results based on the semi-tensor product of matrices. A proper form of pseudo-Boolean functions is found, and the concept of (strict-)Lyapunov functions is thus given. It is shown that a pseudo-Boolean function in the proper form can play the role of Lyapunov functions for Boolean...
This paper investigates the function perturbation impact on the topological structure of Boolean networks by using the semi-tensor product method, and presents a set of new results. First, a new necessary and sufficient condition is presented to guarantee that an attractor is invariant after function perturbations. Second, a necessary and sufficient condition is established to analyze how do the attractors...
Recent statistics suggest that online social network (OSN) users regularly share video contents from video sharing sites (VSSes), and a significant amount of views of VSSes are indeed from OSN users nowadays. By crawling and comparing the statistics of same videos shared in both RenRen (the largest Facebook-like OSN in China) and Youku (the largest Youtube-like VSS in China), we find that the huge...
The vibration test of the 4LZ-2 combine harvester is carried out on the location of the driver room. The main causes of the mechanical vibration and the maximum value of the vibration are determined. The anti-vibration test of the grain lost monitor is made. On above basis the anti-vibration performance of the monitor is studied and the monitor is redesigned. The reliability of the monitor is greatly...
To make full use of coal combustion heat energy, and for the purposes of energy savings and pollutant reductions, more than two different coal needs to optimize the preparation of coal. This article describes design and application of coal blending control system based on OLLiAS-LK large-scale PLC. It has realized the functions of automatic start and stop, interlock control, material level adjustment,...
Modern enterprises are in the market for a large number of computer applied professionals. And a lot of practice at home and abroad has proved that training teaching is an effective means. The paper sets forth the necessity and feasibility of training teaching in computer science undergraduate education. It highlights training teaching theory, objectives and teaching model. Based on author's practice...
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