关系营销中的渠道建设

关系营销中要求制造商与分销商形成一种以信任和承诺为基础的,以共赢为目标的长期合作的渠道关系。此种关系型渠道在当今市场中为制造商提供一个相对稳定,忠诚,高效的分销队伍,但也有其发展的局限性。本文结合宝洁公司的分销渠道建设来探讨关系型渠道的建设、维护和优化过程中的关系变化问题。     

综述电视频道运行的系统思维观

从逻辑上较为系统地对电视频道运行的基本步骤一一作出论述,指出电视运行中内、外因素全面考虑的必要性。     

Blind channel identication of nonlinear folding mixing model

1 .INTRODUCTIONBlind source separation ( BSS) or independentcomponent analysis(ICA) has been studiedin thepast dozen years and usedin the applications suchas array signal processing , speech and biomedic-al ,etc . Signals from multi-sensor systems are of-ten mixtures of ( statistically ) independentsources , and need to be recovered to the talentones .The linear instantaneous mixing model ofICA or BSS[1 ,2]isx=As+nwheresis an unknown random vector ofNinde-pendent components ,Ais anM…     

IEEE 802.11e无线网络协议标准中增强分布式协调功能(EDCF)性能分析

从理论上分析了IEEE802.11e协议中EnhancedDistributedCoordinationFunction(EDCF)的性能。目前,EDCF作为实际实现中的标准接入机制而成为研究的热点,已有大量文献分析了EDCF中参数的选择及其对网络性能的影响。但是在以前的工作中对使用TransmissionOpportunity(TXOP)时以及非理想信道条件下EDCF系统的性能分析却很少。文章的主要工作就是从理论上分析了采用TXOP以及考虑信道误码时EDCF的性能。     

论电视频道包装制作的切入点

指出包装的根本目的是区别,分别从识别元素、以人为本、导视“导好”几个方面介绍了频道包装的切入点。     

石棉吸附氢氧化钙对石棉水泥制品性能的影响

探讨了石棉对氢氧化钙的吸附过程,分析了影响该过程的各种因素,结果表明石棉通过吸附氢氧化钙改善石棉水泥制品的性能.     

Influence of ethanol on calcium,inositol phospholipids and intracellular signalling mechanisms

Summary Studies have implicated Ca⁺⁺ in the actions of ethanol at many biochemical levels. Calcium as a major intracellular messenger in the central nervous system is involved in many processes, including protein phosphorylation enzyme activation and secretion of hormones and neurotransmitters. The control of intracellular calcium, therefore, represents a major step by which neuronal cells regulate their activities. The present review focuses on three primary areas which influence intracellular calcium levels; voltage-dependent Ca⁺⁺ channels, receptor-mediated inositol phospholipid hydrolysis, and Ca⁺⁺/Mg⁺⁺-ATPase, the high affinity membrane Ca⁺⁺ pump.Current research suggests that a subtype of the voltage-dependent Ca⁺⁺ channel, the dihydropyridine-sensitive Ca⁺⁺ channel, is uniquely sensitive to acute and chronic ethanol treatment. Acute exposure inhibits, while chronic ethanol exposure increases⁴⁵Ca⁺⁺-influx and [³H]dihydropyridine receptor binding sites. In addition, acute and chronic exposure to ethanol inhibits, then increases Ca⁺⁺/Mg⁺⁺-ATPase activity in neuronal membranes. Changes in Ca⁺⁺ channel and Ca⁺⁺/Mg⁺⁺-ATPase activity following chronic ethanol may occur as an adaptation process to increase Ca⁺⁺ availability for intracellular processes. Since receptor-dependent inositol phospholipid hydrolysis is enhanced after chronic ethanol treatment, subsequent activation of protein kinase-C may also be involved in the adaptation process and may indicate increased coupling for receptor-dependent changes in Ca⁺⁺/Mg⁺⁺-ATPase activity.The increased sensitivity of three Ca⁺⁺-dependent processes suggest that adaptation to chronic ethanol exposure may involve coupling of one or more of these processes to receptor-mediated events.     

汾河水库以下输水管线段河道物质组成与冲刷研究

介绍了汾河水库至扫石段汾河河道物质组成，从岩性、颗粒组成等方面总结了该段河道的沉积规律，对输水线路可能受到的冲刷影响进行了评述。     

300MW汽轮发电机定子通风槽板点焊工艺的改进

分析电机通风槽钢脱落的原因，改点焊工艺为铆接工艺，从而保证通风槽板质量，使通风槽板的设计更为合理，提高电机运行的可靠性。     

Subliminal Channels in the NTRU and the Subliminal-Free Methods

The construetion and destruction of subliminal channel are important problems in the information hiding. The subliminal channel can send secret information without notice. Two subliminal-free methods named weak （strong） subliminal-free on public-key cryptosystem （PKC） are proposed in this paper using the combinatorial method. The first method can only free the subliminal information with any minor probability and the second can free all. Moreover, the ＂traitor problem＂ which is same as the model of the subliminal channel in PKC is given. Two subliminal channels are embedded in N-th degree truncated polynomial ring （NTRU） cryptosystem, and their subliminal-free methods are also be obtained by the action of surveillant.