For real-time applications in mobile low-duty-cycle (DC) wireless sensor networks (WSNs), discovering neighbours needs to be achieved in both short average latency and high fraction of discoveries (FDs) with low energy consumption. A novel asynchronous probabilistic method is proposed, in which a node randomly chooses a prime, e.g. p, from a pre-configured prime set and wakes up only at the first slot during every p continuous slot which is for a hyper-cycle length, i.e. a fixed number continuous slots, determined by the prime sets, and then selects another prime for the next hyper cycle. For low-DCs, especially <2%, one can flexibly configure different prime sets for the given DC, and the more the primes in the sets, the lower the average discovery latency (ADL) that is achieved. Simulations show that the proposed method can not only achieve a shorter ADL than SearchLight, but also obtain a shorter and smaller tail on FDs than Birthday.

The error performance of two-hop cooperative communication (CC) systems with transmit antenna selection (TAS) at the source and relay over η − μ fading channels is analysed. The probability density function of the received signal-to-noise ratio and the average bit error rate of two-hop CC systems with a source-destination direct link and TAS at both the source and the relay is derived. The exactness of the analytical expressions is validated by the close agreement of the Monte Carlo simulation results and the analytical results.

Based on Novell Nsure Identity Manager 3 technology,the courses-selected system,the tuition management system,the loan system,the scholarship management system and library management system were integrated in the paper,and an integrated information service platform for the students was established based on the unified identity library.The platform realized the heterogeneous data in the automatic conversion and relevant subsystems of information sharing based on the identity through meta directory technology provides various application subsystem user identity information of automatic synchronous processing and so on.Practice shows that the design method of this platform,realized the heterogeneous data integration and provided an effective solution for campus informatization.

In view of the situation of the multi-service integrating system in the university,based on the Novell Nsure Identity Manager 3 technology,an unified identity library was built,and a data synchronization mechanism was designed,the courses-selected system,tuition management system,loan system,scholarship management system and library management system which the student concerned were integrated,an integrated information service platform for the students was established,realized the sub-system automatic transfer,information sharing and access control,these sub-system such as payment system,defer system,loans system,scholarship system,selection system,library system.Practice shows that the design method of this platform provided an effective solution for integrating data in the multiple information system of university and realizing the informatization.

Based on immune danger theory,a danger zone generating mechanism,a danger zone radius calculation method and the calculating formula of the danger signals signal_0 by antigen necrosis and the antigen detected danger signals signal_1 were given according to the intrusion detection application.In addition,a detection algorithm in the danger zone was presented according to the signal_0 and signal_1.The experiments showed that the proper selection of the dangerous area radius is helpful for the improvement of the efficiency of intrusion detection system,and make both the false negative rate and false detection rates remained at a lower level.

本文结合心理学及软件工程提出新的C语言程序设计课程架构,以便在C语言程序设计教学中采取多种有效的教学手段,使学生在掌握基本概念的同时提高解决实际问题的能力,培养学生的学习兴趣,提高全国计算机等级考试的合格率,增强就业竞争力.

本文根据作者教学实或设计了数据结构与算法课程架构,以便在数据结构与算法教学中采取多种有效的教学手段,使学生在掌握基本概念的同时有效提高解决实际问题的能力,培养学生的学习兴趣,使学生不但有能力学习新知识,同时还能根据实际需要创适新数据结构与算法来解决实际问题.

一、企业应用平台的特征 (1)非常可靠(用于运行商业应用程序) (2)自动从失败中恢复,并几乎不丢失信息 (3)能够处理(非常)大量的数据

本文介绍了数据监测系统的基本软硬件构架,软件的功能模块,以及数据安全性设计,对建立通用数据监测软件具有较强的参考价值。

Carrier pigeon races are increasing every year, and automatic management systems have used in them. This paper introduces the basic thoughts in designing and implementing the system, and offers a structure diagram of software and hardware to implement it.

本文介绍了收入发放及个人所得税通用软件的设计方法及思路,能达到在一定条件下使软件的生命周期无限长,对建立通用数据库应用软件具有较强的参考价值.

文中介绍了工商企业信用系统的基本软硬件构架,以及工商企业信用系统的功能模块、功能设计.这对建立省、市工商企业信用系统具有一定的参考价值.

A treatment to sharpen discontinuities for shock tracking methods is introduced. The treatment is a modification of the scheme that makes the computation on each side of the discontinuity only using the information from that side and eliminates the conservation errors. It is proven that our conservation difference scheme satisfies the dispersed entropy condition under some conditions.

提出了限高广义哈夫曼树的概念,证明了有关的定理和结论,构造了限高广义哈夫曼树的算法,最后在汉字编码方面进行了应用.

Authors present a concept-generalized Huffman tree(GHT) and prove some pertinent theorems. Meanwhile, authors design the GHTs algorithm. In particular, authors give its application in Chinese character coding.

介绍了混凝土搅拌公司信息管理系统的建设及实现方案，作为Ｃｈｅｎｔ／Ｓｅｒｖｅｒ，Ｂｒｏｗｓｅ／Ｓｅｒｖｅｒ及Ｄｉｓｔｒｉｂｕｔｉｏｎ在 ＭＩＳ系统中的应用经验和成果，包括系统建设的结构设计、系统功能、系统所使用技术及实现方法．