Advanced Materials Research Vols. 546-547

Abstract: To solve the problems of long-time response and data redundancy in EPG obtaining of current interactive TV Portal, a new Portal system towards interactive TV terminals is designed and accomplished based on Ajax technology and jQuery frame. This system realizes asynchronous and cross-domain transfer of page information in batches, which also lays the foundation of real-time refresh of the page. Project results suggest that response time is shortened and resources are efficiently utilized while displaying and playing functions are ensured.

Abstract: In Large-scale network applications, transmission data collection is the basis for audit, analysis and evaluation of systems and users. Transmission data collection can be carried out either on the link line or on the host where the network application is running. Collecting at different locations, the types of data acquired are different, thus need different processing. This paper first analyzes the different transmission data collection methods, their advantages as well as disadvantages. Then analyzes the structure of those network applications that are basing on transmission dynamic linked library, promotes the intermediate DLL method. Finally through an example it shows how to define the intermediate DLL to collect transferred data on application layer without affecting the original system function.

Abstract: As the competition increases sharply in the market economy, enterprises are facing increasing business risks and uncertainties which needs to improve the internal control. Currently information technology is developing rapidly. The implementation of internal control by the information system will become a trend. This article analyzes the problems which the internal control management information system in the enterprises may encounter in the implementation; the potential risks from the business process and develop the appropriate measures.

Abstract: We consider the problem of packing unequal spheres into a larger sphere as dense as possible. This problem is seldom researched so far as we know, but its importance and real world applications have been widely revealed. In this paper, we present a method using the techniques of Tabu search, Quasi-human basin-hopping strategy, and BFGS method as its components to resolve this problem, and get some solutions for a serial of thoroughly selected instances.

Abstract: In the next generation network, there are more and more types of service. And the resource allocation control is more and more difficult. So it is very useful to do some research in this field. An algorithm which is flexible and adaptive can make the parlay gateway works better. In this paper a proved adaptive and sensitive resource allocation algorithm has been presented in the environment of Parlay multi-service. The simulation results indicate that this algorithm can satisfy the requirements of different kinds of service. The Parlay gateway can make full use of resource using this algorithm.

Abstract: Grid, as a new tool for solving problems, is applied to science, engineering, industries and commerce. More and more application programs are making use of grid infrastructure to meet their needs of computing, storage and other aspects. The effectiveness of a grid environment depends on the effectiveness and efficiency of its scheduler. Grid scheduling is the process that maps grid jobs to the resource in multiple administrative domains. The article does research on the principles and methods of grid scheduling and gives a description about grid resource section by way of quantitative evaluation.

Abstract: In the safety production of coal mine, monitoring exact and real-time mine parameter is very important and key problem. The monitoring system of mine environment with wireless is designed, which is based on the structure of wireless sensor network (WSN).The system includes sensor node, Sink node and monitoring center. In the paper, the function structure and hardware design of sensor are introduced for the monitoring of temperature, humidity and gas concentration, and the function structure and hardware design of sink node is designed. The system has low power, rapid real-timing, stable running. Etc. This can satisfy with the requirement of WSN and suit the monitoring of bad environments. It will have wide application prospect.

Abstract: Among the block cipher algorithms, AES or DES is an excellent and preferred choice for most block cipher applications. But AES and DES are not very suitable for hardware implementation because of the high cost that they require large areas of routing and the processing efficiency is low, relatively. So lightweight cipher algorithms come into beings, among which PRESENT is very competitive. Along with the structure of a message authentication algorithm ALRED, a new family of Tunable Lightweight MAC based on PRESENT is proposed, that is TuLP. However, PRESENT is not able to resist side channel attack, so is TuLP, of course. For the above reason, in this paper, we provide an improvement of PRESENT by inserting random dummy cycles as well as shuffling to strengthen the security of PRESENT against side channel attacks. We will implement PRESENT and TuLP in Verilog and do simulation on Xilinx ISim platform. At last, we would like to provide the power analyzing of Xilinx XPower.

Abstract: There are some disadvantages of the Apriori algorithm，such as too many scan of the database and many redundant middle itemsets to be generated. In this paper, we propose an improved algorithm, OApriori, with a synthetical method: (1) pruning strategy, (2) connection strategy, (3) reducing the scanning scale of database. We have performed extensive experiments and compared the performance of two algorithms. It was found that the improved algorithm reduces the counts of unnecessary candidate itemsets, accelerates the speed of the algorithm.

Abstract: The new Connect6 game was launched and received the widespread attention in recent years. For the problems existing in pattern judgment way and in 6-8 windows in some literatures, the algorithm of Connect6 is studied by considering the attack and defensive characteristics of the Connect6. By the new 6-8 window approach proposed here, the evaluation function which determines the evaluation value is designed and implemented by calculating the changing quantity of the assessed values of the chessboard before and after the falling a stone. Based on this, an optimal Connect6 program is designed and implemented based on the PVS algorithm and the transposition table optimization, history heuristic optimization, null-move pruning optimization as well as iterative deepening optimization. The pruning rate of nodes in game tree comes to more than 98%. The actual playing of the chess indicates that the program has the strong chess strength.