移动IP与MPLS的融合方案

在介绍移动IP技术和MPLS技术特点的基础上，提出了移动IP与MPLS的融事方案。利用MPLS的标记交换代替传统的IP转发，能降低传输开，提高移动IP的可扩展性，同时为MPLS提供移动性支持。     

GSM及GPRS网络安全策略研究

GSM以及通过连接IP数据网扩展的无线分组业务网GPRS,其安全性能受到无线接入方式、网络结构与移动终端的制约。在分析现有GSM和GPRS网络结构的基础上,对移动通信网采用的安全策略进行一定的探讨。     

蜂窝IP技术概述

本文首先介绍蜂窝JP技术的协议机制,接着详细分析其路由、切换和寻呼等关键技术,并通过性能分析,证明蜂窝IP技术能很好地利用Mobile IP的全局移动性支持和蜂窝系统的移动切换等功能,支持频繁切换下的高速分组数据传输,适应下一代无线分组数据通信发展的需要。     

IPv6路由技术研究

为了支持lnternet移动设备,IETF(互联网工程任务组)制定了相应的协议一移动IP、它有两个版本,一个是基于IPV4的移动IPv4,另一个是基于IPv6的移动IPv6,本文主要探讨了IPv6路由技术的相关问题.     

2016年泛娱乐产业大格局

一、泛娱乐概念的产生及含义泛娱乐,指的是基于互联网与移动互联网的多领域共生,打造明星IP（intellectual property,知识产权）的粉丝经济,其核心是IP,可以是一个故事、一个角色或者其他任何大量用户喜爱的事物。从表现形式来看,IP可存在于多种文化产品。说到泛娱乐,就不得不提及近几年我国文化娱乐产业的爆发式增长。     

基于IP分布式MSC的CDMA2000系统A接口设计与实现

针对传统集中式移动交换中心(MSC)容量小、安全性低、不易扩展的不足,基于IP技术和软交换技术,提出了一种分布式MSC架构.在此架构下对A接口协议进行了分析并给出了基于IP的实现方案:兼顾TCP的可靠性和UDP的简洁性定义了承载A接口中的信令和业务的一个增强性UDP协议(EUDP).此外,也描述了分布式MSC负荷分担的选择原则:轮选、处理最近和资源最近;最后以8 kbit/s语音业务为例,对基于IP传输语音业务的带宽需求进行了简单分析.实践表明,该方案不仅提高了系统的经济性,也改善了网络容量扩展和新业务提供的灵活性.     

Ad Hoc网络在西部地区商场组网的研究

Ad hoc网络是一种没有有线基础设施支持的移动网络。本文阐述Ad hoc网络的节点结构,比较了几种典型的网络结构,介绍了Ad hoc网络的特点及移动IP和Ad Hoc网络的结合。并且商场组网的对管理Ad Hoc网络面临的问题进行了一些探讨。     

探讨IP承载的移动软交换核心网组网技术

本文主要分析了IP承载的移动软交换技术特点,并对IP承载的移动软交换核心网组网技术进行了论述,以供同仁参考.     

基于OSPF的单播路由技术在GPON系统中的应用

GPON系统的高带宽和双向光通信特性能够很好地支持数据业务。设计了GPON系统中基于OSPF的单播路由技术实现方案．该设计承接了OLT和ONU上的IP数据流功能，充分利用GPON双向光通信特性，使PON口下的IP用户可以和网络双向通信，支持IP化的数据业务。     

移动IP技术浅议

当今世界,INTERNET规模正以惊人的速度不断扩大,随着人们对网络依赖性的增加,越来越多的移动用户都希望能够随时随地的访问INTERNET资源,因此,移动IP技术成为业界研究的重点。一、重要概念1.移动代理(MOBILITYAGENT)移动代理分归属代理(HOMEAGENT)和外区代理(FOREIGNAGENT)两类,它们是移动的IP服务器或路由器,能知道移动节点实际连接在何处。其中,归属代理是归属网上的移动IP代理,它至少有一个接口在归属网上。其责任是当移动节点离开归属网,连至某一外区网时,接收发往移动节点的数据包,并使用隧道技术将这些数据包…     

Employee References: Between the Legal Devil and the Ethical Deep Blue Sea

An employer asked to provide a reference for a former or departing employee is confronted with a number of complex legal and ethical concerns. The issue of references is always controversial, involving a balance of employers' fears of legal liability, interests in providing relevant information to prospective employers, and concerns for fairness to former employees. Recently this topic has been the focus of new attention as the result of a court decision holding a former employer legally liable for wrongs committed by a former employee in a new job. In that case, the former employer had provided a positive reference while neglecting to note certain negative aspects of the former employee'sperformance. This paper addresses legal and ethical aspects of the reference dilemma and incorporates responses of human resource professionals to the question of ethical reference policies and practices.     

Revisiting the Concept of a Societal Orientation: Conceptualization and Delineation

Marketers have traditionally evaluated products and practices on the basis of whether something could be sold. It is also important to evaluate products and practices from a societal perspective, “Should a product be sold?” The first idea reflects a managerial orientation and what must be done to sell a product; the second idea reflects a societal orientation and the impact of selling a product. In relation to the second idea, the societal marketing concept was introduced in 1972. There has been little advancement in our understanding of a societal orientation since that time. The current study presents a conceptualization of a societal orientation based on a review of literature and qualitative interviews. The construct was conceptualized as “attention to the long-term well-being of individuals and society at large by enhancing positive impacts from and reducing negative effects associated with production and consumption of a product.” Five domains comprising a societal orientation are proposed: physical consequences, psychological well-being, social relationships, economic contribution, and environmental consciousness.     

CONVEX RISK MEASURES FOR GOOD DEAL BOUNDS

We study convex risk measures describing the upper and lower bounds of a good deal bound, which is a subinterval of a no‐arbitrage pricing bound. We call such a convex risk measure a good deal valuation and give a set of equivalent conditions for its existence in terms of market. A good deal valuation is characterized by several equivalent properties and in particular, we see that a convex risk measure is a good deal valuation only if it is given as a risk indifference price. An application to shortfall risk measure is given. In addition, we show that the no‐free‐lunch (NFL) condition is equivalent to the existence of a relevant convex risk measure, which is a good deal valuation. The relevance turns out to be a condition for a good deal valuation to be reasonable. Further, we investigate conditions under which any good deal valuation is relevant.     

Consumers' Trust in a Brand and the Link to Brand Loyalty

Brands are important in the consumer market. They are the interface between consumers and the company, and consumers may develop loyalty to brands. This study proposes that trust in a brand is important and is a key factor in the development of brand loyalty. Factors hypothesized to influence trust in a brand include a number of brand characteristics, company characteristics and consumer-brand characteristics. Respondents representing a broad spectrum of Singapore consumers were surveyed. The findings reveal that brand characteristics are relatively more important in their effects on a consumer's trust in a brand. The results also show that trust in a brand is positively related to brand loyalty. Marketers should, therefore, take careful consideration of brand factors in the development of trust in a brand.     

PRICING DERIVATIVES ON MULTISCALE DIFFUSIONS: AN EIGENFUNCTION EXPANSION APPROACH

Using tools from spectral analysis, singular and regular perturbation theory, we develop a systematic method for analytically computing the approximate price of a large class of derivative‐assets. The payoff of the derivative‐assets may be path‐dependent. In addition, the process underlying the derivatives may exhibit killing (i.e., jump to default) as well as combined local/nonlocal stochastic volatility. The nonlocal component of volatility may be multiscale, in the sense that it may be driven by one fast‐varying and one slow‐varying factor. The flexibility of our modeling framework is contrasted by the simplicity of our method. We reduce the derivative pricing problem to that of solving a single eigenvalue equation. Once the eigenvalue equation is solved, the approximate price of a derivative can be calculated formulaically. To illustrate our method, we calculate the approximate price of three derivative‐assets: a vanilla option on a defaultable stock, a path‐dependent option on a nondefaultable stock, and a bond in a short‐rate model.     

The Cultural Paradigm of Virtue

Social and moral issues in business have drawn attention to a gap between theory and practice and fueled the search for a reconciling perspective. Finding and establishing an alternative remains a critical initiative, but a daunting one. In what follows, the assumptions of two prominent contenders are considered before introducing a third in the form of Aristotle’s ancient theory of virtue. Comparative case studies are used to briefly illustrate the practical implications of each paradigm. In the quest for a better sense-making and sense-giving lens, this paper refines and encourages the search by highlighting some of the key features required of a worthy paradigmatic challenge. The author proceeds to identify a particular type of institutional community, and a promising champion, for the practical unification of strategic and normative excellence.     

回转器在振荡电路中的应用

本文叙述应用回转器的振荡电路的原理与实践.将运算放大器及其外接元件组成回转器,就能够模拟一只Q值极高的大电感,从而实现超低频振荡.这种等放电感的电感量可达1MH,甚至更高!如果将模拟电感与适当的电容组成并联谐振回路,它的振荡频率很容易低于1Hz.在此回路两端接上正反馈回路,就能维持稳定振荡,而且波形良好.电路输出可以作为标准信号,用来校准医用微分器,作生理电脉冲波形变换的研究.     

A Bayesian survey technique for rare subjects

We propose a methodology to draw a representative sample from a population with a small fraction of potential customers for a certain product or a service. The objective is to increase the expected number of potential customers in a sample of fixed size representing the whole population. The method also provides a useful way of incorporating subjective judgement and uncertainty into the sampling plan. This approach has produced very satisfactory results for rare event problems in a number of telecommunications applications.     

Factors associated with single-vehicle and multi-vehicle road traffic collision injuries in Ireland

Generalised linear regression models were used to identify factors associated with fatal/serious road traffic collision injuries for single- and multi-vehicle collisions. Single-vehicle collisions and multi-vehicle collisions occurring during the hours of darkness or on a wet road surface had reduced likelihood of a fatal/serious injury. Single-vehicle ‘driver with passengers’ collisions occurring at junctions or on a hill/gradient were less likely to result in a fatal/serious injury. Multi-vehicle rear-end/angle collisions had reduced likelihood of a fatal/serious injury. Single-vehicle ‘driver only’ collisions and multi-vehicle collisions occurring on a public/bank holiday or on a hill/gradient were more likely to result in a fatal/serious injury. Single-vehicle collisions involving male drivers had increased likelihood of a fatal/serious injury and single-vehicle ‘driver with passengers’ collisions involving drivers under the age of 25 years also had increased likelihood of a fatal/serious injury. Findings can enlighten decision-makers to circumstances leading to fatal/serious injuries.     

Strategic IMC: From abstract concept to marketing management tool

Although integrated marketing communication (IMC) has progressed towards mid-range maturity level, its full-scale adoption has been impeded by a lack of consensus on its defining constructs. The purpose of this study is to move from abstraction to define the construct of strategic integration (SI) and develop this into a management tool, thus making an important contribution to both the theory and practice of IMC. Drawing from both IMC and strategic management literature, the construct of SI is operationalised into a number of key factors and a well-cited management model, Fuchs' ‘integration valuator’ is explored as the starting point of a measurement tool for IMC. To do this, a Delphi study invites the scrutiny of an expert panel of world-leading IMC researchers and practitioners. The panel validated the model construction process, redefined overarching constructs and key factors with a high degree of consensus, supported a process measure, suggested a weighted evaluation measure and recognised the importance of developing such a measure. They delivered clear and consistent imperatives guiding model development. The result is a measure of SI that evaluates organisational proficiency and diagnoses the integration of IMC campaigns. It also advances theory by providing a better understanding of the construct of SI.