保障热量表长期稳定运行的措施

根据我公司在长春、山东和北京等地约1万只热量表．为期(1～4)年不等的实际运行经验．认为影响热量表长期稳定运行的主要原因是水质。含有杂质的采暖水会造成热量表计量性能偏移、失去准确度甚至堵塞流量计。为了保障热量表长期稳定运行．必须解决采暖水质对热量表的影响。单纯的让水质适应热量表和让热量表适应水质的作法     

An Exploratory Study of E-Business Success Factors

E-business success factors are Important for traditional enterprises to implement e-business. This topic is attracting more and more researchers to study. This paper makes an exploratory study on the factors influencing e-business success. Firstly, based on the literature review, 52 factors are suggested. Secondly, two rounds of survey with Delphi method are conducted. Qualitative and quantitative analysis are used to identify 57 factors. This is the foundation of empirical study.     

Study of the Improvement on Network Management Performance with Mobile Agent

1　IntroductionWiththerapiddevelopmentofInternet,thenetworkisbecominglargerandmorecomplex ,whichcallsformoresophisticatednetworkmanage mentstrategiestobeadoptedinordertoguaranteeadequatelevelsofperformance .Confrontedwiththepresentstatusofnetworkmanagement,manyschol arsmakegreateffortstoinventnewapproachesforthepurposeofimprovingtheperformanceofnet workmanagement.MobileAgenttechnologiesandtheirapplicationtonetworkmanagementaread vancedunderthisbackground .Althoughalotofworkhasstilltobedone ,t…     

Study on the Complexity of the Bullwhip Effect

Recent years have witnessed a rapid growth of interest in the study of the dynamic behavior of replenishment rules of bullwhip effect. We prove that bullwhip effect and butterfly effect share a same the self-oscillation amplifying mechanism that is the ordering decisions the supplier self-oscillation amplify the perturbations brought by the errors in the processing of retailers' demand information. This results as an explicit self-similar structure of the sensitivity of the system to the initial values duty to the nonlinear mechanism. In this paper, the causes process of the bullwhip effect is described as the internal nonlinear mechanism and study on the complexity of bullwhip effect for order-up-to policy under demand signal processing. The methodology is based on fractal and chaotic theory and allows important insights to be gained about the complexity behavior of bullwhip effect.     

联创FlashSpeed 5208三层(接入控制)交换机

FS5208是针对以太网商用化而设计的IP接入产品。FS5208采用先进的ASIC技术和Cross-Bar交换技术,具有强大的硬件转发能力和灵活的协议处理能力,为适应电信运营要求,FS5208加强了用户管理、计费等方面的处理,使之既有以太网接入经济、成熟的特色,又有电信级的用户管理和运营能力。 适用于新建小区和商用大楼,也可以运用于商业网的宽带化。FS5208采用用户端口标识的接入方式,可以用于接入固定配置的用户和动态配置的用户。FS5208通过识别用户IP地址、终端MAC标识和接入网络时的网络端口标识来确定用户的唯一性和合法性。FS5208可对用…     

面向数字电视的网络化节目平台

随着广电行业数字化、网络化的日益发展,中国数字电视产业正在逐步形成,各省级电视台数字电视频道、中央节目平台的     

USERS' TWO-DIMENSIONAL INTEREST AND ITS STORAGE METHOD

The users' interest can be mined from the web cache and can be used widely. The interest can be specialized by the two-tuple (term, weight) in the simple interest model, in which the association relations are not mined, and then the interest cannot be associated in expressing the users' interest. Based on analyzing the WWW cache model, this letter brings forward a two-dimensional interest model and gives the interrelated methods on how to store the two-dimensional interest model effectively.     

CIP4/JDF的最新发展(续)

而在高度电脑化的印前领域中,早已使用PostScript标准的页面格式语言,经过RIP网点处理器的解译再转换成网点资料,配合拼大版软件,所以事实上“印版扫描机”所尝试要得到的网点分布资料,在RIP完成之后便以数码的方式存在了。因此唯一的问题便是如何让印刷机的控制电脑能解读RIP所产生的网点讯号。 在纯粹的电脑科技领域中,要达到上述的目的并不困难,但早期印前厂商和印机厂商各自在发展电脑科技,所用的硬件和软件不尽相同,如     

高速对开热敏制版机Xcalibur45

爱克发推出新一代Xcalibur 45高速对开热敏制版机,提供更高的成像质量,而且过程更快捷方便。爱克发这台45in(1160mm)制版系统采用先进的Crating Light Valve(CLV)可变光栅技术,此技术本来是为高解像电视(HD-TV)而设计,爱克发率先将此技术应用于印刷领域     

DIRECT RESONANCE OF TURBULENT BOUNDARY LAVER OVER COMPLIANT WALLS

１．　ＩＮＴＲＯＤＵＣＴＩＯＮＴｈｅｍａｉｎｇｏａｌｏｆｔｈｉｓｐａｐｅｒｉｓｔｏｅｘｐｌｏｒｅｔｈｅｐｏｓｓｉｂｉｌｉｔｙｔｏｌｅａｒｎｍｏｒｅａｂｏｕｔｔｈｅｍｅｃｈａｎｉｓｍｏｆｔｕｒｂｕｌｅｎｔｂｏｕｎｄａｒｙｌａｙｅｒｆｌｏｗｉｎｔｅｒａｃｔｉｏｎｓａｎｄｉｔｓｅｆｆｅｃｔｓｏｎｃｏｍｐｌｉａｎｔｗａｌｌｐｅｒｆｏｒｍａｎｃｅ．Ｔｈｅｒｅａｒｅｃｅｒｔａｉｎｐｒｅｒｅｑｕｉｓｉｔｅｃｏｎｄｉｔｉｏｎｓｔｏｆｕｒｔｈｅｒｔｈｅｓｔｕｄｙｏｎｔｈｅｍｅｃｈａｎｉｓｍ，ｉ．ｅ．ｔｈｅｃｏ…