极富潮流时尚的外形的诺基亚的7260

全新的键盘设计令7260显得十分吸引人。这款银白红相间版更是把那种古典的优雅与现代的潮流完美的结合在一起．从美学的角度上来看诺基亚的7260可以说得上是一款设计相当精美的艺术品，具有相当高的观赏价值。     

改进的堆的枚举算法的研究

提出一种生成所有堆的枚举算法。该算法按照从深层次向低层次的顺序生成堆,采用单个数判断法。测试结果验证了该算法的有效性和可靠性。     

基于软交换的SIP和MGCP的互通的研究

在软交换网络中,SIP和MGCP是两种非常重要的协议,然而,两者之间的互通也是个突出的问题.通过深入分析互通所涉及的协议转换、寻址、资源协商等关键问题的基础上,提出在媒体网关控制器实体中扩展互通功能模块的设计方案,该互通功能模块是用C语言编程实现,利用该互通功能模块建立起两个网络之间的点到点的呼叫.     

最重要的是把负的变成正的

热闹喧嚣后的圣诞瘦街头,Reka Lorincz漫步在无人的巴塞罗那的一条小巷里,她独自伫立在橱窗前良久,端详着跳舞的圣诞老人,“为什么你只会在一年年末才来到我们的身边,然后销声匿迹一整年？那这一整年中,你都在哪里？”于是,在2004年,Reka把这些平日圣诞节过后被废弃的树、包装,甚至圣诞老人的头发,做成一系列作品。而她,也就这样走进了大众视野。     

基于sip的穿越NAT设备的解决方案的研究

随着数据业务的迅猛发展,NGN已经成为研究的热点.而SIP协议作为NGN中的关键协议,受到了广泛的关注,由于SIP是一种新型协议,所以在应用方面存在着很多问题.其中,在不损害网络安全性的情况下,如何使SIP信令顺利的通过NAT设备,成为热点问题.本文首先对SIP协议以及NAT技术进行了简要的介绍,然后对SIP穿越NAT设备的问题进行了详细的探讨,最后对RSIP协议进行了深入的分析.     

适合的才是最好的

建立清晰合理的业务流程体系是ERP项目实施成功的关键因素，ERP作为一个管理工具主要提供决策支持数据及监控业务过程，而清晰合理的业务流程体系能保证ERP系统提供准确有效的数据而不是垃圾数据，同时保证业务系统更加规范，提高效率。     

合适的才是最好的

这位海归CIO的经历，与业界很多失败项目的传说有诸多相似之处，某企业上了一套先进的大品牌的系统，项目往往在上线后没有了下文。如何避免出现上述案例的情形，应该注意以下几点。     

C#环境下的单片机控制的机器人的监控的通讯程序设计

单片机在机器人中有着广泛的应用,但是由于计算性能欠佳,无法完成复杂的功能,需要使用上位机对其进行监控,本文针对ZKRT-300机器人采用C#环境设计了监控程序,就通讯协议及数据处理进行了论述.     

提速的才是能效的

公司的主要业务是经营各种礼品,经营范围以满足市场需要为目的,公司的经营方式长期是以人工操作为主。为了提高工作效率,公司很早就购置了先进而昂贵的电脑设备,但是由于员工的使用水平有限,电脑的许多功能没有利用起来,以至花巨资买来的电脑仅仅作为台打字机使用,没有起到多大的作用,就要被淘汰掉。随着近年来公司业务的迅猛发展,传统的人工操作渐渐不能适应采购、销售、配送等多项业务同时开展的需要,制约了企业的发展。举例来说,公司有时会同时接到好几笔订单,有时又经常几周没有出货,所以业务员在进货时总是担心货多了少了,生怕货源不充足或者库存积压。随着观念的更新,客户对礼品的新颖程度和种类提出了越来越高的要求,公司在拓展货源方面面临着新的挑战。     

强烈的对比 迷人的照片

需要软件:Adobe Phatashap C54以上版本你会学到:利用黑白图层和高反差保留滤镜加强结构需要时间:大约25分钟相机拍摄下来的东西,有的细节眼睛是看不到的。像海水的纹理或者岸边岩石的表面这样一些具有低对比度的细致图案,在乌云下会显得更不明显。不过通过图像编辑,更准确地说是通过效的提高对比度,可以让这些结构更明显可见,并因此更好地展现照片的魅力。最简单的办法是通过滑块、色阶或者曲线加强对比度。不过,如果过度编辑     

Only connect: teaching, technology and telesis

Abstract This paper describes an approach to the design of interactive multimedia materials being developed in a European Community project. The developmental process is seen as a dialogue between technologists and teachers. This dialogue is often problematic because of the differences in training, experience and culture between them. Conditions needed for fruitful dialogue are described and the generic model for learning design used in the project is explained.     

European Community policy and the market

Abstract This paper starts with some reflections on the policy considerations and priorities which are shaping European Commission (EC) research programmes. Then it attempts to position the current projects which seek to capitalise on information and communications technologies for learning in relation to these priorities and the apparent realities of the marketplace. It concludes that while there are grounds to be optimistic about the contribution EC programmes can make to the efficiency and standard of education and training, they are still too technology driven.     

一种自适应子融合集成多分类器方法

融合集成方法已经广泛应用在模式识别领域,然而一些基分类器实时性能稳定性较差,导致多分类器融合性能差,针对上述问题本文提出了一种新的基于多分类器的子融合集成分类器系统。该方法考虑在度量层融合层次之上通过对各类基多分类器进行动态选择,票数最多的类别作为融合系统中对特征向量识别的类别,构成一种新的自适应子融合集成分类器方法。实验表明,该方法比传统的分类器以及分类融合方法识别准确率明显更高,具有更好的鲁棒性。     

Avoiding semantic and temporal gaps in developing software intensive systems

Development of software intensive systems (systems) in practice involves a series of self-contained phases for the lifecycle of a system. Semantic and temporal gaps, which occur among phases and among developer disciplines within and across phases, hinder the ongoing development of a system because of the interdependencies among phases and among disciplines. Such gaps are magnified among systems that are developed at different times by different development teams, which may limit reuse of artifacts of systems development and interoperability among the systems. This article discusses such gaps and a systems development process for avoiding them.     

Designing economic np control charts: A programmed simulation approach

This paper presents control charts models and the necessary simulation software for the location of economic values of the control parameters. The simulation program is written in FORTRAN, requires only 10K of main storage, and can run on most mini and micro computers. Two models are presented - one describes the process when it is operating at full capacity and the other when the process is operating under capacity. The models allow the product quality to deteriorate to a further level before an existing out-of-control state is detected, and they can also be used in situations where no prior knowledge exists of the out-of-control causes and the resulting proportion defectives.     

The development of robot art

Going through a few examples of robot artists who are recognized worldwide, we try to analyze the deepest meaning of what is called “robot art” and the related art field definition. We also try to highlight its well-marked borders, such as kinetic sculptures, kinetic art, cyber art, and cyberpunk. A brief excursion into the importance of the context, the message, and its semiotics is also provided, case by case, together with a few hints on the history of this discipline in the light of an artistic perspective. Therefore, the aim of this article is to try to summarize the main characteristics that might classify robot art as a unique and innovative discipline, and to track down some of the principles by which a robotic artifact can or cannot be considered an art piece in terms of social, cultural, and strictly artistic interest. This work was presented in part at the 13th International Symposium on Artificial Life and Robotics, Oita, Japan, January 31–February 2, 2008     

Explanation and prediction: an architecture for default and abductive reasoning

Although there are many arguments that logic is an appropriate tool for artificial intelligence, there has been a perceived problem with the monotonicity of classical logic. This paper elaborates on the idea that reasoning should be viewed as theory formation where logic tells us the consequences of our assumptions. The two activities of predicting what is expected to be true and explaining observations are considered in a simple theory formation framework. Properties of each activity are discussed, along with a number of proposals as to what should be predicted or accepted as reasonable explanations. An architecture is proposed to combine explanation and prediction into one coherent framework. Algorithms used to implement the system as well as examples from a running implementation are given.     

Three Process Perspectives: Organizations, Teams, and People

This paper provides the author's personal views and perspectives on software process improvement. Starting with his first work on technology assessment in IBM over 20 years ago, Watts Humphrey describes the process improvement work he has been directly involved in. This includes the development of the early process assessment methods, the original design of the CMM, and the introduction of the Personal Software Process (PSP)^SM and Team Software Process (TSP){^SM}. In addition to describing the original motivation for this work, the author also reviews many of the problems he and his associates encountered and why they solved them the way they did. He also comments on the outstanding issues and likely directions for future work. Finally, this work has built on the experiences and contributions of many people. Mr. Humphrey only describes work that he was personally involved in and he names many of the key contributors. However, so many people have been involved in this work that a full list of the important participants would be impractical.     

基于复小波噪声方差显著修正的SAR图像去噪

提出了一种基于复小波域统计建模与噪声方差估计显著性修正相结合的合成孔径雷达(Synthetic Aperture Radar,SAR)图像斑点噪声滤波方法。该方法首先通过对数变换将乘性噪声模型转化为加性噪声模型,然后对变换后的图像进行双树复小波变换(Dualtree Complex Wavelet Transform,DCWT),并对复数小波系数的统计分布进行建模。在此先验分布的基础上,通过运用贝叶斯估计方法从含噪系数中恢复原始系数,达到滤除噪声的目的。实验结果表明该方法在去除噪声的同时保留了图像的细节信息,取得了很好的降噪效果。     

How do children do mathematics with LOGO?

Abstract  This paper considers some results of a study designed to investigate the kinds of mathematical activity undertaken by children (aged between 8 and 11) as they learned to program in LOGO. A model of learning modes is proposed, which attempts to describe the ways in which children used and acquired understanding of the programming/mathematical concepts involved. The remainder of the paper is concerned with discussing the validity and limitations of the model, and its implications for further research and curriculum development.