国内引文数据库发展综述

本文主要从国内引文数据库发展的基本情况、主要应用情况、未来发展方向和建议三个方面叙述和分析了当前国内引文数据库的总体情况，并指出当前国内引文数据库应在注意深化和扩展应用的同时，力争在建设方面能有一个大的跨越式的发展。     

基于专利地图的技术创新可视化研究

专利地图作为专利信息分析工具,可以为技术创新活动提供有力的决策支撑,但目前缺少有效的专利可视化工具指导技术创新实践。本文从专利信息的内容和技术创新活动的特征入手,从宏观层面的技术主体分布、技术结构、技术市场和微观层面的技术优势、技术合作、技术依赖的角度,构建基于专利地图的技术创新分析框架,并提出了一个改进的共现分析模型,以图谱的形式展现专利分析的结果。在此基础上,以公路工程领域为例进行可视化实验,为技术创新工作提供基于工程技术分析的支撑手段。     

A microfluidic device for simultaneous measurement of viscosity and flow rate of blood in a complex fluidic network

Blood viscosity has been considered as one of important biophysical parameters for effectively monitoring variations in physiological and pathological conditions of circulatory disorders. Standard previous methods make it difficult to evaluate variations of blood viscosity under cardiopulmonary bypass procedures or hemodialysis. In this study, we proposed a unique microfluidic device for simultaneously measuring viscosity and flow rate of whole blood circulating in a complex fluidic network including a rat, a reservoir, a pinch valve, and a peristaltic pump. To demonstrate the proposed method, a twin-shaped microfluidic device, which is composed of two half-circular chambers, two side channels with multiple indicating channels, and one bridge channel, was carefully designed. Based on the microfluidic device, three sequential flow controls were applied to identify viscosity and flow rate of blood, with label-free and sensorless detection. The half-circular chamber was employed to achieve mechanical membrane compliance for flow stabilization in the microfluidic device. To quantify the effect of flow stabilization on flow fluctuations, a formula of pulsation index (PI) was analytically derived using a discrete fluidic circuit model. Using the PI formula, the time constant contributed by the half-circular chamber is estimated to be 8 s. Furthermore, flow fluctuations resulting from the peristaltic pumps are completely removed, especially under periodic flow conditions within short periods (T < 10 s). For performance demonstrations, the proposed method was applied to evaluate blood viscosity with respect to varying flow rate conditions [(a) known blood flow rate via a syringe pump, (b) unknown blood flow rate via a peristaltic pump]. As a result, the flow rate and viscosity of blood can be simultaneously measured with satisfactory accuracy. In addition, the proposed method was successfully applied to identify the viscosity of rat blood, which circulates in a complex fluidic network. These observations confirm that the proposed method can be used for simultaneous measurement of viscosity and flow rate of whole blood circulating in the complex fluid network, with sensorless and label-free detection. Furthermore, the proposed method will be used in evaluating variations in the viscosity of human blood during cardiopulmonary bypass procedures or hemodialysis.     

基于区域产业互动的三螺旋协同创新能力评价研究

三螺旋模型中的企业维度可区分为生产性服务业和制造业两个具有不同特征并互动演化的亚类,依据SCP分析范式,在解析"大学—政府—生产性服务业"和"大学—政府—制造业"两个并行三螺旋协同创新结构和行为的基础上,引入复合系统协调度模型,对基于区域产业互动的三螺旋协同创新能力评价方式进行理论推演和实例分析。结果表明:应用两个并行互动的创新三螺旋对区域协同创新能力进行评价,可以在理论上丰富三螺旋理论体系,同时在实践上为区域协同创新能力的提升提供更为详细的决策参考信息。     

An empirical study of query expansion and cluster-based retrieval in language modeling approach

The term mismatch problem in information retrieval is a critical problem, and several techniques have been developed, such as query expansion, cluster-based retrieval and dimensionality reduction to resolve this issue. Of these techniques, this paper performs an empirical study on query expansion and cluster-based retrieval. We examine the effect of using parsimony in query expansion and the effect of clustering algorithms in cluster-based retrieval. In addition, query expansion and cluster-based retrieval are compared, and their combinations are evaluated in terms of retrieval performance by performing experimentations on seven test collections of NTCIR and TREC.     

谈判英语中模糊用语的句法及主位推进分析

与商务英语的准确性原则相对,模糊用语通常因内涵不明确,所指不清楚,容易使语言含义模棱两可。但在商务谈判中,它却有着灵活、委婉、礼貌和自我保护等特点,因此成为谈判语用策略中必不可少的一环。试用主述位切分及主位推进的理论分析模糊用语在句法和篇章层面上的特征、结构、衔接、延展和含义,以帮助谈判者在组织与使用该策略的过程中克服母语的定势思维,更好地为成功谈判服务。     

论图书馆保护非物质文化遗产的职能

图书馆应确立保护非物质文化遗产的职能,并通过多种措施来参与这种文化遗产的保护工作,如宣传、发展文献保存与服务体系,提供活动场所与组织服务,参与研究与调查工作,等等。     

谈石刻文献整理

石刻文献整理中的题名确定、文字辨识、刻立年代考订、拓本考证等工作,均非常重要。完成这些工作,除要有一定的学识和经验外,还要借助相关的工具书去解决问题。     

人性化的数字图书馆网站设计

本文阐述了“人性化”的数字图书馆网站应遵循的设计原则,并对网站的风格特征、版面布局、功能模块设计提出了自己的参考性建议。     

浅谈图书馆社区信息服务的推广

图书馆的社区信息服务将是一个颇具发展潜力和广阔前景的新领域，值得图书馆界大力推广。推广社区信息服务应从以下入手；（1）利用图书馆立法；（2）争取政府支持，主管领导重视；（3）健全管理体制，引入激励机制；（1）沟通社区关系；（5）扩大服务对象和范围；（6）提高队伍素质；（7）强化读者服务意识；（8）举办各种社区活动。