试论网络阅读时代高校图书馆的导读策略

从网络阅读的含义和特点出发,阐述了网络阅读的消极因素和负面影响,提出了网络阅读时代高校图书馆的导读策略。     

高校图书馆导读服务的实践与思考

提供优质服务是图书馆的核心价值,而导读则是其中一种主要的服务形式。介绍了导读服务的作用、意义和原则,论述了开展导读服务工作的举措,以期提高高校图书馆的服务质量。     

深度图象用于机器人视觉导引

本文讨论了激光深度图象感测器的原理.基于该原理,文中提出了一种计算时间省、抗干扰能力较强的提取图象边界的新方法.文中还提出了一种获取三维数据的变换方法和一种从表面到物体的识别方法.将上述方法和技术用于导引机器人焊接,提高了机器人适应外界环境的能力.     

Postembryonic sensory axon guidance in Drosophila

The peripheral sensory system of the Drosophila adult has been used for the genetic analysis of axon guidance because of its accessibility for experimental manipulation and mutant screens. Wing, leg, antenna, or eye sensory axons are able to pathfind normally under different perturbations, indicating that sensory axon guidance is a highly canalized process. Similarly to other model systems, sensory growth cones seem to use multiple, simultaneous cues for guidance. In addition, sensory axons from peripheral structures seem to be capable of using alternative substrates for pathfinding. Developmental regulation could account for the high stability of axon guidance under experimental and natural perturbation conditions. Despite this flexibility, functional characterization of genes involved in sensory axon guidance is being carried out in situations where there appears to be less system redundancy.     

试论道德在科技发展中的作用

文章分析了道德在科学技术发展中的三大作用；一是道德对科技的发展具有良好的导向作用；二是道德对科学研究对象的选择起着定向作用；三是道德对科技工作者获得成果，促进科技的发展和繁荣具有激励作用，文章最后指出，在知识经济已见端倪的今天，应当充分发挥道德在科技发展中的重要作用。     

高校图书馆导读工作的具体操作

论述了高校图书馆在大学生读者低、中、高3个阶段导读工作的具体操作。     

Biocompatibility studies of silk fibroin-based artificial nerve grafts in vitro and in vivo

Silk fibroin(SF)has been used extensively in the biomedical field including tissue engineering for the generation of artificial bones,skins or ligaments.We have previously reported on good in vitro biocompatibility of SF fibers with peripheral nerve tissues and cells.In the present study,we developed a novel design of the SF-based artificial nerve graft(SF graft)which was composed of a SF-nerve guidance conduit(NGC)inserted with SF fibers.MTT assay was performed to determine the cytotoxicity of the SF-NGC extract fluid on the cultured L929 cells derived from an immortalized mouse fibroblast cell line.In addition,this SF graft was implanted into adult rats for bridging a 10-mm long sciatic nerve defect.The following-up experiments at initial stage(1-4 week)of nerve regeneration including routine blood tests and histochemical investigation were conducted to evaluate the in vivo biocompatibility of the SF graft with peripheral nerves.The results demonstrated that the SF-NGC graft was biocompatible with the surrounding tissues and cells due to its low inflammatory potential with a grade 0 under the U.S.Pharmacopeia guidelines and it was generally suitable to a certain degree for bridging peripheral nerve defects in virtue of supporting Schwann cell adherence,expansion and migration.Therefore the SF graft is a promising alternative to classical autografts for peripheral nerve repair.     

浅议高职《无机化学》教学中存在的问题及对策

随着我国经济体制改革的进一步深入,市场机制的逐步成熟与完善,社会对人才质量的要求也发生了很大的变化,高职院校无机化学课程改革势在必行,本文对当前无机化学课程的教学内容和教学方法存在的问题进行了分析,并提出了高职院校无机化学课程教学改革的措施。     

高师心理学教学目标的反思与重建

从理论和实际两种角度反思高师心理学教学目标，存在着偏重陈述性知识、机械训练和社会要求，忽视策略性知识、创造性培养和个人需要等弊端，必须重建心理学教学目标框架，突出策略性知识目标、创业素质形成目标和创造能力培养目标，这样才能适应创业教育的要求，寻回心理学应有的价值和地位。     

视觉导引下的轴与轴孔被动装配研究

提出了一种在视觉导引下的被动装配方法，该方法首先使用视觉进行粗定位，然后使用装配平台的扫描运动完成最后的装配，该方法克服了视觉装配误差大和被动装配时间长的缺点，集中了视觉装配速度快和被动装配精度高的优点，使得精确装配能够迅速完成。文中不仅给出了装配系统的模型，而且给出了空间点的矩阵变换，通过摄像机的特殊配置，使得矩阵变换非常简单。同时，对摄像机的最大成像误差进行了估计，为后面的装配平台运动提供依据。最后，给出了装配过程的实验结果，从装配过程所化的时间来看，该系统是可行的。