网络口碑信息有效性综合测度研究

为了全面测度网络口碑有效性,文章根据网络口碑的传播特性以及网络口碑信息内容特征,依据相关口碑理论与消费者行为理论,将网络口碑有效性的综合测度维度划分为累计评分效果、传播效果与信息内容效果,并在此基础上构建出相应的测度指标,从而建立一个测度网络口碑有效性的综合指标体系。中央基本科研业务费项目(项目号:2010221053); 福建省社会科学规划一般项目(项目号:2011B223

Interorganizational Relationships: A Resource-based View

通过对文献的梳理分析,发现基础资源观在组织际关系研究方面有着重要的理论价值。组织际关系的基础是组织的内部资源,其实质是一种资源关系。可见一个组织的独特资源是其与其他组织合作的基础。本文就此探讨了资源理论在组织际关系研究中的作用。This study intends to investigate the role of resource theories on interorganizational relationships (IORs). The literature review shows that a resource-based view (RBV) plays an important role on IORs. The basis of IORs is the firm’s internal resource, and IORs are resource relationships substantially. The unique resources in an organization are the bases of cooperating with others

供应链信息共享障碍问题研究

信息共享是供应链成员间协调的关键手段之一。供应链中信息共享障碍可以分为技术障碍、资金障碍、个体障碍、组织障碍、管理障碍和社会文化障碍等六,对这些障碍的了解有助于管理人员采取措施促进供应链成员间的合作

IT投资评估中实物期权理论与方法的应用

文章回顾分析了实物期权理论在IT投资评估中的三个发展阶段,着重探讨了应用该理论时的难点和需要解决的问题,最后指出如何运用实物期权思维来评价IT投资

Reviews on the Productivity Paradox of IT Investment

近二十年来,在有关信息技术的研究问题中,“生产力悖论”是研究的焦点之一。本文从宏观经济层面、行 业层面和公司层面这三个角度,对有关“生产力悖论”的研究进行梳理和探讨,并对我国的IT投资提出几点启示。In the recent 20 years, productivity paradox has become one of the most important topics in the information technology research domain. This paper reviews productivity paradox from three levels, namely country-level, industry-level and firm-level. Our results have differential policy implications for IT investment in China

The Customer Relation Management and Technical Research in E-Business

顾客关系管理(CRM)是企业一项重要的工作。在因特网技术和电子商务快速发展今天,企业为了创造、保持和扩展顾客关系,满足顾客的需求目标,为企业创造更多的价值,就必须有效地利用信息技术来改善企业的管理,并快速做出决策,及时对市场及顾客的需求作出反应。毫无疑问,几乎所有企业的CRM都是由数据驱动的,即使是那些必须与顾客面对面联系的中小企业也不例外。在电子商务环境下,企业实行顾客关系管理需要信息技术的支持。在CRM中,随着复杂程度的提高,出现了营销手段、数据管理和数据处理这三个互为联系、互为支持的方面,它们分别是数据库营销、数据仓库和数据挖掘。CRM is an important task of enterprises,whose success has much to do with information technology.Today when Internet and E-business are developing fast,enterprises should effectively use information technology to improve their management and to satisfy the needs of customers and make more profits.Nearly all enterprises use data-technology in CRM which has much to do marketing means,data management and data processing,which shows the role of GRM in E-business

Application of flat UF in separation and purification of natural taurine

介绍了天然牛磺酸提取工艺中存在的问题及膜分离技术,研究了4种不同规格超滤膜在章鱼下脚料中提取天然牛磺酸中的应用,从膜通量、蛋白去除率、牛磺酸收率、膜污染和膜清洗等各方面考察了不同材质、不同切割分子量的平板超滤膜分离性能.得出了1#平板超滤膜(MWCO 30 000g/MOl,CA)为从章鱼下脚料中分离牛磺酸的较佳分离膜.This article elaborates on the problems which exist in the separation and concentration of nature taurine with membrane separation technology.It analyzes how four different types of ultrafiltration membrane are applied to extract nature taurine from octopus scraps.The separation performance of flat ultrafiltration membranes which have different materials and MWCO is studied in terms of the membrane flux,the removal rate of protein,the yield of taurine,the repeated utilization of the membrane.The article finds out that 1#flat UF membrane(MWCO 30 000g/mol,CA)is the preferred membrane

Preliminary Study on Identification of Oil Products Using Laser-Raman Fingerprint Spectrum

利用激光拉曼指纹图谱对石油产品进行特性测试与分析。通过比较主要指纹峰的拉曼位移和相同拉曼位移处的拉曼强度比值,鉴别了不同种类的石油产品;对不同社会加油站相同型号汽油的拉曼光谱进行测试,检测了汽油的质量。该方法在油品鉴别和质量检测中取得了良好效果,具有快速、简便、灵敏度高、对样品无损伤等优点

Progress of nursing interventions on malnutrition among patients with lung cancer (肺癌患者营养不良的护理干预研究进展)

Malnutrition is a common cancer treatment side effect, leading to the decreased treatment tolerance and increased risk of complications induced by chemotherapy and radiotherapy. This paper summarized the studies on malnutrition among patients with lung cancer in perspectives of risk factors, evaluation tools and nursing interventions, in order to provide reference for clinical practice of lung cancer treatment and nursing. (营养不良是肺癌患者常见症状。营养不良可导致患者治疗耐受性下降、放化疗不良反应风险增加, 严重影响肺癌患者生活质量。本文从肺癌患者营养不良发生的危险因素、评估工具、护理干预措施等方面进行综述, 以期为临床护理人员选择合适的评估工具、给予有效的护理干预措施提供参考依据。

Electrochemically Switched Ion Exchange Properties of PANI-SnP Composite Films in Wastewater Containing Ni2+ and Cd2+

采用滴涂法在铂基底制备了电活性聚苯胺-磷酸锡(PANI-SnP)复合膜电极，考察了该电极在Ni2+、Cd2+溶液的电控离子交换性能. 用傅立叶变换红外光谱和扫描电镜分析观察复合膜的组成及表面形貌；在0.1 mol·L-1 Ni(NO3)2、Cd(NO3)2溶液，通过循环伏安法比较了PANI膜、SnP膜及PANI-SnP复合膜电极的电化学性能，并结合电化学石英晶体微天平技术重点考察了PANI-SnP复合膜的离子交换机制；同时，通过循环伏安法调控复合膜电极的氧化还原电位，结合X射线能谱和X射线光电子能谱分别测定了其氧化和还原状态的元素组成. 结果表明，PANI-SnP复合膜电极在Ni2+、Cd2+溶液均有良好的氧化还原电活性和可逆离子交换性能，其Cd2+离子选择性优于Ni2+离子，通过电控离子交换可使Cd2+离子从镍镉废水高效分离.Electroactive PANI-SnP composite films were prepared by drop-coating method on Pt electrodes and investigated as electrochemically switched ion exchange (ESIX) materials for the separation of Cd2+ from aqueous solutions. The composition and morphology of the composite film were characterized by Fourier transform infrared spectrometer (FTIR) and scanning electron microscope (SEM). In solutions containing 0.1 mol·L-1 Ni(NO3)2 and Cd(NO3)2, cyclic voltammetry (CV) and electrochemical quartz crystal microbalance (EQCM) were used to investigate the electrochemical behavior and ion-exchange mechanism of PANI-SnP composite film. The elementary composition of PANI-SnP composite films in both oxidation and reduction states were also characterized by energy dispersive X-ray spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS). Experimental results show that the PANI-SnP composite films have reversible electrochemical behavior in aqueous solutions containing Cd2+ and Ni2+, respectively. The PANI-SnP composite film electrodes displayed a high selectivity toward Cd2+ in Cd2+/Ni2+ binary mixtures and the Cd2+ ions could be separated effectively from aqueous solutions by ESIX processes.国家自然科学基金(No. 20676089)，山西省自然科学基金(No. 2012011020-5, No. 2012011006-1)，山西省国际科技合作计划项目(No. 2011081028)资助作者联系地址：太原理工大学化学化工学院化学工程系，山西 太原 030024Author's Address: Department of Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China通讯作者E-mail：[email protected]