三碘苯酚乙基纤维素微球的制备

为提高造影剂的颗粒度,减少血池造影剂透过血管壁向组织间质渗出,影响血池造影剂的造影效果,采用液中干燥法( in-liquid drying method)制备了三碘苯酚乙基纤维素微球，研究了三碘苯酚与乙基纤维素的比例对微球成球性，粒径以及载药量的影响，发现两者的比例为1：2时成球性最好，所得微球为规整的球形，微球粒径最小，平均粒径D50为3.68um, 载药量为41.4%。     

浅谈下一代互联网协议IPv6

随着Internet的飞速发展,IPv4的缺陷逐渐凸现。针对这个问题,文章介绍了IPv6产生的背景以及IPv6的新特性,同时阐述了从现有的IPv4网络过渡到IPv6的策略。     

关于某15MW机组电厂主要辅机电动机选用低压电动机和高压电动机的比较

本文通过对6kV电动机和380V低压电动机的技术经济比较,论证了电厂主要辅机电动机采用低压电动机的可行性。     

School quality, child wellbeing and parents’ satisfaction

Child wellbeing at school and enjoyment of the learning environment are important economic outcomes, in particular because a growing body of research shows they are strongly linked to later educational attainments and labour market success. However, the standard working assumption in the economics of education is that parents choose schools on the basis of test-score performance, and concerns about child happiness are largely ignored. In this paper, we address this omission and investigate to what extent parents’ and children's views of their school are linked to test-score based performance, and to what extent parents’ judgements of school quality are linked to their child's happiness. To do so, we use information on stated attitudes from the Longitudinal Survey of Young People in England (LSYPE) matched to administrative records on pupil achievements in England. Our results suggest that test-score based measures of school quality tend to dominate parental satisfaction with the learning environment. However, school quality along this dimension is not strongly associated with pupil happiness and wellbeing at school.     

我国女子长跑青少年运动员基础训练阶段赛前6周训练的结构特征

对我国女子长跑青少年运动员基础训练阶段赛前6周训练结构特征进行研究,结果表明:技术、速度和力量训练比例较低,训练内容多样化程度不高,缺乏协调能力训练的专门安排,准备和整理活动管理监督状况较差,而且训练的高负荷、高度专项化导致有氧训练严重不足,有氧和无氧(混氧)比例失衡和倒置,最终造成训练效益不高,以及较为严重的早期专项化。     

“电气安装的规划与实施”教学思考

为了提高＂电气安装的规划与实施＂课程的授课效率,采用基于工作过程为导向的情境教学＂六步法＂,将理论学习与技能训练结合起来,＂教人以渔＂,切实提高学生的学习信心、动手能力和职业素养,提高人才培养的质量.     

《中图法》第5版音乐类目 (J6) 刍议

《中图法》第5版音乐类目的修订基于增设类目、修订类名、增补修改注释、删除/停用类目等多个方面,但在音乐理论类目的细化、音乐作品类目内容与形式的统一等颇受音乐专业图书馆关注问题的修订方面,仍然存在不足或缺失.建议修订工作借鉴《中图法》第3版音乐类目表成功修订的经验,使《中图法》音乐类目表真正成为一部能够全面、正确反映音乐艺术科学特点、具有长期稳定性的统一的音乐文献分类标准.     

预应力混凝土连续刚构0号块空间分析

借助大型有限元计算软件Ansys,建立某连续刚构0号块实体模型,分析讨论计算结果,为0号块的设计计算提供参考。     

试论Mindmap在Big6信息问题解决模型中的应用

通过对Big6和Mindmap相关理论的介绍,论述了Big6信息问题解决模型任务驱动性特征与Mindmap发散性思维结合使用对信息问题解决过程的帮助,讨论Mindmap在Big6过程的中具体应用。     

基于cisco packet tracer模拟器的IPv6网络RIPng路由实验设计及实现

通过介绍IPv6及基于IPv6的RIPng动态路由,并借助计算机网络实验教学仿真软件Packet Tracer Packet Tracer来讲解RIPng动态路由的配置技术及实验过程,丰富了计算机工程组网中路由配置实验教学内容.