Applied Mechanics and Materials Vols. 198-199

Abstract: Ubiquitous service is a bran-new service idea and model of digital library. It emphasizes that the library should be centered on users, provide services at anytime and anywhere, and be embedded into user's work. The ubiquitous service model of digital library is mainly embodied in the mobile library service, the user environment-embedded service, the “cloud computing” -based service and the global network library service. Combined with the relevant application examples, this paper expatiates on and analyzes the basic types, characteristics and application status of digital library ubiquitous service. The Digital Library of the security threats facing and the reasons, according to OSI security architecture, examining the safety and security objectives of digital library, based on the principle of new casks, from the security strategy of several major Digital Library in the process of data security issues and propose appropriate safety measures and solutions, is intended to strengthen the library data from various aspects of information security.

Abstract: According to the need of reconfigurable system’s designing, this paper presents a method applied to hardware-software partitioning for dynamically reconfigurable embedded system. A model of dynamically reconfigurable embedded system is built to describe its task; then a merging algorithm of genetic algorithm and ant algorithm is adopt to get results of hardware-software partitioning, according to the system model given and application model described by task graph. Priority-based list scheduling and Configuration-prefetching strategy are used to evaluate these results. Experimental results show that the algorithm in this paper could map the task graphs to reconfigurable system efficiently both in time and space, and have higher performance compared with other algorithms.

Abstract: This paper introduce the primary architecture and principle of intravenous transfusion device based on the internet of things , particularly detailed the collaboration medical monitoring platform, intelligent perception unit, Infusion monitoring service . Giving the program flow chart of main program and critical code of five liquid queue speed-measuring method. This system can satisfy the requirement of doctors for monitor and manage infusion process centralized. Therefore, it is worthy of reference to implement in similar system.

Abstract: An implementation of a remote destruction solid state drive (SSD) was introduced in the design. The advanced technology of rapid data destruction, the technology of breakdown the flash with high-voltage pulse and the technology of GSM is combined together. As a result, user can operate through a simple command (text message or a call) to destroy all data in SSD, as long as the user confirms SSD is out of control. The method of erasing data and destroying the flash I/O are both executed, so the data can’t be recovered after destruction. At last, some tests are displayed to verify the performance of the remote destruction SSD.

Abstract: This paper addresses the issue of increasing the efficiency of the clock skew scheduling. The past research focuses on reducing the time complexity of clock skew scheduling algorithm. However, even if an algorithm has time complexity close to linear, the flow iterations still consumes a lot of time. In this paper, a novel clock skew scheduling scheme with the feature of optimization-potential prediction is proposed. With this feature, the algorithm has timing complexity close to linear, and the number of flow iterations is decreased. The experiment results show that the proposed scheme consumes about half time and achieves almost the same optimization strength (13% highest frequency improvement of ARM1136J-FS) compared to the traditional.

Abstract: There are generally two types of E-commerce platform optimized programs: hardware optimization and software optimization, This paper first analyzes the system optimization techniques of software optimization, Including dynamic load optimization technology and cluster technology; Then studies the database performance optimization methods from the table, connection pooling, query and several other aspects; Finally to carry on the research to optimization electronic commerce platform used the cache technology. Proposes a universal significance of E-commerce platform software optimization solutions, these studies have some references for relevant E-commerce website designers and maintainers, and provides a strategy for the corresponding E-commerce enterprises to optimize platform environments.

Abstract: As same as other products, computer software also has quality problem. This article, based on software’s features, which are function ability, reliability, usability, efficiency, maintainability and portability, has illustrated the relation between software defect, error and invalid and discussed the reliability and maintainability of software to ensure the designed function within life cycle. This article mainly discusses the relations among the defects, troubles and invalidities and the reliability as well as the maintainability of computer software, and the six features of describing and appraising computer software are put on according to the characteristics of our country’s computer software.

Abstract: Comprehensive evaluation of reservoir researching is a critical aspect of the petroleum and oil exploration researching. Reservoir is a place where oil and gas gathered. Comprehensive evaluation of reservoir is a kind of multi-factor analysis which takes the permeability, porosity, sedimentary environment and some other factors into consideration. GIS’s capabilities in spatial analyzing and graphics visualization are very strong. Using the excellent capabilities of GIS, we can improve the efficiency, truthfulness and objectivity of the comment by Overlap analysis of some single factors of reservoir, and can provide relatively reliable reference for determining which areas are most favorable for exploration. The basic ideas and design of GIS-based comprehensive reservoir evaluation system was introduced and a study case was given in this Paper.

Abstract: In order to reasonable distribute electric energy and develop an energy-saving plan, electric energy demand forecasting which can represent a fundamental information is necessary. Power consumption has long duration, obvious nonlinear effect and the energy demand may be seen as a temporal series when its data are conveniently arranged. Neural networks have proved to be a very powerful tool which can predict a future value by studying the past one. In this paper, we propose a time series prediction model based on Generalized Regression Neural Network (GRNN) to predict the evolution of the monthly demand of electric consumption. GRNN is trained in just one presentation of the training patterns and is capable of providing fast and accurate results. The performance of the algorithm is evaluated using mean absolute and mean square errors. Tests are carried out by using the power consumption data of a campus distribution subsystem and the results obtained are found to be compatible with the actually data.

Abstract: In order to achieve the national energy saving targets, and track, supervise, manage and assess the energy-using condition of the key energy-using enterprise effectively, according to the user’s demand and the system feature, the Microsoft.Net framework and the MVC mode are chosen, and combined with the Ajax technology, the implemented plan is settled. The .net-based energy-saving information management system is designed and implemented, and it improves the condition of the information reporting and statistical analysis mean for key energy-using enterprise and relevant functional departments. The result shows that the system architecture is reasonable, and it improves the maintainability and extendibility of the system.