日本无线通信产业90年代的迅速崛起及其原因探析

日本无线通信产业在上个世纪90年代经历了从小到大、从劣势到优势、从跟随到引领的角色换位，实现了赶超世界先进的目标。日本从政府政策、产业构造、制造能力以及技术进步等多因素出发，多方位、多角度地塑造和推动了该产业的迅速崛起。     

一种无线网络中基于ARQ的拥塞控制方法

提出了一种适用于无线网络的基于多拒绝自动请求重传（ARQ）算法的拥塞控制方法。谊方法结合随机早探洲（RED）算法，通过ARQ发送窗口和分割队列长度以及重传率进行拥塞控制。仿真表明，这种方法能预测链路拥塞，反馈链路拥塞程度，提高链路吞吐率。     

实用校园网的建设

以建设中共河北省委党校校园网为例 ,介绍了一个校园网的完整实施方案。对校园网建设的实施目标和原则、校园网的功能需求作了详细分析 ,重点论述了校园网的拓扑结构、网络设备的选择 ,尤其是交换机和服务器的选择与安装、网络系统的配置 ,包括代理服务器与防火墙的安装与设置作了详细说明。最后介绍了通过微波通信方式接入Internet,该网的建成实现了校园网内的计算机快速的访问 Internet     

Creating market anticipation: An exploratory examination of the effect of preannouncement behavior on a new product’s launch

Preannouncements are strategic marketing communications directed at market participants including investors, suppliers, distributors, and buyers. Most empirical literature focuses on antecedents influencing a firm’s preannouncement behavior and on outcomes related to deleterious responses by competitors. This study differs and follows the large body of extant research that examines preannouncing behavior as a deliberate marketing communication process aimed at influencing market participants in the firm’s favor. The authors develop and test a model of preannouncement behavior that affects the success of a new product launch through market anticipation, competitive equity, and new product development resources. The findings indicate that preannouncement behavior engenders new product success through its positive effect on market anticipation—a favorable industry-wide bias in advance of new product introduction—and emphasizes the use of preannouncements as business-to-business marketing communications aimed at influencing current and prospective supply chain partners in the firm’s favor. Kim Schatzel (schatzel@umd.umich.edu) (PhD, Michigan State University) is an assistant professor of marketing at the University of Michigan, Dearborn. Her business experience includes more than 20 years of corporate and new venture work including tenure as the founder and CEO of a multinational $250 million automotive components firm and three start-up technology-based companies. She is interested in the study of new product development, business-to-business marketing communications, and firm reputation issues. She has published articles in theJournal of Marketing, theJournal of Business Research, and theJournal of Product Innovation Management. She is also highly committed to teaching excellence and has won several awards for undergraduate, graduate, and executive teaching. Roger Calantone (rogercal@msu.edu) holds the Eli Broad University Chair in Business at Michigan State University and is also the director of the Broad Information Technology Management Program (ITMP). He is interested in the study of new product innovation and technology decisions in industrial firms. Currently, his research is focused on new product decisions, industrial market segmentation, global logistics, and the use of neural network and autonomous learning models to valuate product components. He is the author of more than 200 refereed academic articles and proceedings and is coauthor of several books. His publications have appeared in journals such as theJournal of Marketing, the Journal of Marketing Research, Marketing Science, Management Science, Decision Sciences, and theStrategic Management Journal.     

一种基于高动态无人机群的TDMA时隙调度策略

为了满足高动态无人机群自组网在网络拓扑频繁变化下快速传输高优先级业务的需求,提出一种基于TDMA协议的动态优先级时隙分配算法。根据节点优先级级别,在TDMA协议框架下提出面向不同业务需求的动态时隙分配算法,采用位向量（BOV）间接确认法实现节点时隙分配;并通过多维度调整策略,综合业务优先级、邻居节点数量、邻居节点变化率和等待时间多个维度确定节点优先级,均衡不同优先级节点对不同数量时隙的申请;最后通过仿真实验对调度策略进行了验证。结果表明,提出的动态优先级时隙分配算法（DP-TDMA）在拓扑频繁变化时可以动态申请、快速分配不同数量的业务时隙,满足对多种业务传输需求;在一定程度上降低了高动态下网络拓扑变化的影响,提高了协议的公平性与稳定性,保证了高优先级信息快速传输,提高了网络的吞吐量。所设计的DP-TDMA算法可应用在高动态无人机群自组网场景中,为网络时隙资源分配提供参考。     

Spread spectrum of knowledge network based on information integration environment

The concept and the characteristic of spread spectrum technology of knowledge network based on information integration environment are given at first. And the basic principle of the wireless network of knowledge and information is recommended. Then a project alternatives using the spread spectrum technology and wireless network is given to build a across-the abroad knowledge network system.     

供应链上非营利组织的整合营销传播组织模式研究

介绍了非营利组织与整合营销传播理论及供应链上非营利组织整合营销传播的特性,最后详细论述了供应链上非营利组织整合营销传播组织模式的设计思路。     

基于无线技术的仓储拣选作业流程再造方案分析

对传统的仓储拣选作业流程进行了研究分析,提出了基于无线技术的仓储拣选作业流程再造方案,并对两者进行了对比分析,阐述了再造后的拣选作业流程采用无线技术及其相关技术后的诸多优点及发展前景.     

MMS系统的原理结构与应用浅析

多媒体短信息服务(MMS)是目前短信息技术开发最高标准的一种.它最大的特色就是支持多媒体功能.MMS可即时实现终端到终端、终端到互联网或互联网到终端的信息传输,允许传输数据、文本、图像、音频、视频消息.本文对MMS的原理结构作了较为详细的分析,列举了MMS的几个其型应用例子.     

长江干流地区跨世纪交通运输网络建设的总体构想

长江干流地区自宜宾至上海长约２８００ｋｍ，横跨中国东、中、西三大经济地带，面积占全国４．３％，有十分重要的战略意义。今后这一区域路网建设的目标是建成以长江干线为主轴，以宜宾、重庆、万县、枝城、武汉、丸江、芜湖、南京、江阴为结点的＂九纵一横＂的路网格局。长江干线包括加深长江航道，建设沿江铁路和沿江高等级公路。同时加强纵向铁路、公路和水运干线建设，形成若干水陆交通枢纽，并加强干线和支线机场建设，在上海、南京、武汉、重庆建成国际航空港。