"随易通"分布式代理体系的设计与实现

介绍中国科学院国家科学图书馆"随易通"系统中的分布安全代理体系的设计和实现,该体系由一系列分布部署、提供安全代理服务、反向代理服务、访问控制功能的代理服务器与对这些代理服务实施集中管理的管理中心组成。     

体育运动中的滞空及其形成机制研究

滞空是篮球、排球、跳远、武术等体育运动项目中常常提到的概念,也是体育运动中确实存在的一种现象,即运动员跳起后人体的头部和上体在空中停留的现象;这一现象曾因看似违背经典力学定律而备受质疑。研究通过梳理相关文献资料并结合运动生理学和运动生物力学相关知识,对滞空现象存在的本质进行了全面的分析,结果表明:滞空现象确实存在也并不违背相关运动学定律;滞空现象是运动员通过巧妙改变自身重心的位置来实现的,其形成机制包括以下三个方面:一、充分利用最高点前后人体纵向速度较小的特点;二、通过运动员肢体的相对运动改变了人体重心的相对位置;三、通过腹式逆呼吸的方法改变身体重心相对位置。     

The mud,the blood,and the beer guys: Organizational osmosis in blue‐collar work groups

This essay examines the communicative processes associated with organizational assimilation within blue‐collar work groups in a manufacturing company. The study hinges on a heretofore unidentified variation to traditional assimilation models, labeled as organizational osmosis. Organizational osmosis refers to the seemingly effortless adoption of the ideas, values, and culture of an organization on the basis of preexisting socialization experiences. The study explores how a common ideological grounding and anticipatory socialization experiences increase identification mechanisms among work group members. This ideological grounding is influenced by interaction with family, friends, and peers during anticipatory stages and results in organizational osmosis. Because these newcomers strongly identify with the values and goals of the organization, these members submit to mechanisms of control and discipline in their work group. The essay concludes with implications for the future study of communication within blue‐collar work populations.     

谈数学史在数学分析教学中的积极作用

在数学分析教学中,经常由于纯粹的理论分析、枯燥的课堂学习以及数学无用论的影响,造成学生学习的积极性降低、教学效果不理想的状况。通过在教学过程中引入数学史料,对改变这种状况可以起到很好的积极作用。     

Alien at home: Adjustment strategies of students returning from a six-months over-sea's educational programme

This paper assesses German students’ adjustment strategies after a six months expeditionary learning programme on high seas with intercultural encounters in Cuba and Costa Rica. A postal survey (N = 128, global response quote r_g = .44) has been conducted with students having returned from four separate learning expeditions from 2008 to 2012. The students reports were coded in five categories, i.e. (1) reintegration narratives (RN), (2) perception of schooling (PoS), (3) self-perception (SP), (4) perceived programme effects (PPE), and (5) social context (SC), which were also quantified on a 5-point Likert-scale. By means of principal components analyses (PCA) and polynominal interpolation (PI), we searched into underlying distribution patterns in the categories. No significant differences were found with respect to gender in the four groups in a one-way ANOVA. However, significant differences with respect to (4) self-perception (SP) and perceived programme effects (PPE) can be referred to group 3. This accords well with the findings of the PCA and PI, which corroborate a U-curve with its apex after eight months at home. It can be shown that all four cohorts show symptoms of expedition reverse culture shock, which indicates that pedagogical intervention also after the cruise may be undertaken.     

逆向工程技术在模型制作中的应用

阐述了逆向工程技术的概念,介绍了逆向工程技术与传统模型制作技术的区别,并从扫描模型的建立、数据采集、数据处理、CAD模型的重建方面,对逆向工程的具体运作过程进行了比较详细的分析和研究.与传统模型制作方法相比,逆向工程技术具有效率高、成本低、操作简单等优点.     

青少年逆反心理的成因与矫正策略

逆反心理具有一定的危害,不仅会对青少年的学习生活等造成消极影响,而且可能会导致过激行为的发生,甚至危及家庭、学校及社会。青少年逆反心理产生的因素有内部、外部两方面,内部因素主要是学生表现欲强、好奇心强烈、独立意识增强等,外部因素主要是由于家庭、学校的不当行为造成的。针对原因,矫正青少年逆反心理的对策主要有：学校要更新教育观念、优化教育手段;教师要提高自身素养;家长应营造民主互信的家庭氛围。     

短波电台天线自动调谐系统检测器工作原理分析

本文对短波电台天线自动调谐系统中检测器的作用和工作原理进行了分析,为判断短波电台天线自动调谐系统的工作状态提供了依据,为部队装备正常使用和保障提供参考.     

浅谈艺术文化对建筑文化的影响

艺术文化在建筑设计中的渗透可以说在建筑的发展变革中起着决定性的作用。人类将各个时期的不同艺术文化通过建筑渗透其中，以至于建筑不同时期的文化传承下来。因此，建筑也就成为反映历史、反映社会的有效语言，艺术文化与建筑设计的渗透方式，过程及关系也就成了我们研究发展建筑文明的关键。     

Characterization of a Double Heterozygote HbE/β+ Thalassemia IVS 1-1 [G>T] in a Juvenile Diabetic

The present case report describes the molecular and proteomic based study of Hb variant HbE associated with β⁺ thalassemia IVS 1-1 G>T, in a juvenile diabetic patient. Given the ethnic origin and mobility of the variant hemoglobin at alkaline pH, HbE would be suspected. But hematologically and clinically abnormality being detected, HPLC and Electrophoresis not being able to characterize due to retention time and band being in region of HbA2, respectively, further characterization of hemoglobinopathy was made using MALDI and IVS 1-1 G>T being validated by reverse dot blot hybridization. Capillary electrophoresis was also employed in order to separate HbE and HbA2 bands. This case report being first of its kind, wherein a HbE/β⁺ thalassemia has been characterized using multiple techniques.