Experimental Study on External Low Frequency Vibration Influence on SPM

The influence of external low frequency (0-100 Hz) vibration on the tip-sample interaction in SPM is the main concern of this paper. A concept, vibration rejection ratio (VRR) proposed by Thompson et al, was investigated theoretically and experimentally. A concise theoretical background was introduced, a vibration stimulating and measuring system for SPM was built up, and an experimental research of the influence on SPM VRR was carried out with different SPM probes, samples, tip pre-loads and open/close loops of tip-sample interaction. It was proved both in theory and experiment that SPM VRR had correlations with the spring constant, the air damping constant, the effective mass of the cantilever, the contact spring constant and the contact damping constant between tip and sample. SPM's vibration rejecting ability can be improved by longer cantilever probe, softer sample surface, greater tip pre-load, and close-loop control for tip-sample interaction. More attention should be paid to a proper combination of the above parameters.     

磁偶极子与磁场的相互作用能与相互作用力

磁偶极子与电偶极子一样，都是非常实用的物理模型。在现行少课时教改的趋势下，让同学尽早认识磁偶极子是一桩非常有意义的事。教材中对磁偶极子虽有论述，但用到的数学既较深奥，也有点繁琐，直接导致初学者在认识上产生障碍。在教学中，磁偶极子与磁场的相互作用力运用培安力公式来计算，方法直观易懂，学生较易接受。     

浅谈统计学网络课程的互动设计与实施

根据开发设计统计学网络课程的三点原则,探索网络教学模式,可以形成比较完整的互动教学方式,用于支持学生的自主性学习。     

档案信息化、档案编研和机关工作的互动关系

本文从机关工作的需要着笔 ,略论在档案信息化高速发展的今天 ,档案编研对机关工作的巨大影响 ,以及他们之间相辅相成、相生相息的关系 ,强调了加强档案编研工作的重要性     

《物流与供应链管理》课程多维互动教学模式探究

《物流与供应链管理》课程是本科工商管理专业的重要课程之一,以培养学生物流与供应链管理方面的综合分析能力和实际解决问题能力。本文主要通过结合教学主要存在的问题,借助当下多种数字化教学信息技术,探讨物流与供应链管理课程多维互动教学模式,通过分析阐述课程教学改革的主要措施和方式,为物流与供应链管理课程教学提供相应借鉴。     

Parameter selection of pocket extraction algorithm using interaction interface

INTRODUCTION Being the bio era, a significant research effort has been devoted to the study of proteins since they are related to the critical body functions. There have been many studies on proteins, with the voluminous related data being currently available in various pub- lic repositories including the Protein Data Bank (PDB) (CATH, 2006; DALI, 2006; MSD, 2006; RCSB PDB, 2006; SCOP Database, 2006). Given the atomic complexes of proteins, ana- lyzing interactions between them…     

现代远程教育实践教学环节面临的问题与对策

本文揭示实践环节教学面临的种种问题,力求切中肯綮;提出的应对策略,诸如完善学习支持服务系统、加强师生双向交互、提高制订计划与考核评议的科学性等等,均着眼于现实或不远的将来中的可操作性。     

Using video-stimulated recall to investigate teacher awareness of explicit and implicit gendered thoughts on classroom interactions

Teachers believe they don’t interact any differently with boys than with girls. However, an examination of the evidence base on gendered student–teacher interactions shows – at times contradicting – unequal interaction patterns for boys and girls. In this study, the videotaped lessons of 13 secondary school teachers in three schools are analysed by both the teachers themselves and the researchers. Video-stimulated recall is used to bring to the surface the thoughts, images and emotions that evoke teachers’ (re)actions in the classroom. Content analysis and thematic analysis of teachers’ recall reveal three things: (1) when recalling specific situations, gender imbalances in the thoughts and images that accompany teachers’ (re)actions come to the surface; (2) "video-stimulated recall" interviewing is a promising method to raise teacher awareness of these gendered thoughts and images; and (3) with a view to practitioners’ professional learning process, it is important for researchers to allow practitioners to co-investigate their practice.     

高职毕业生就业与无锡区域经济发展关系研究

以无锡区域经济为基本观察点,对高等职业院校毕业生就业现状及其成因、高等职业教育与就业市场的互动关系作系统调研,并运用定量分析和定性分析相结合的方法,对其影响因素进行综合分析.认为要实现真正意义上的以就业为导向的高职教育,高职院校必须随着形势的变化,在区域经济结构、教育市场结构、专业设置以及人才培养模式之间实现良性互动,并在互动中寻求平衡.     

语文教学与创新思维培养

如何在语文教学中培养学生的创新思维呢？笔者认为可以从以下几方面入手：①创新教学，引发学生的创新意识；②双向互动，打破单向教学模式；③反向教学，打破正向思维定势；④寻残留缺，引导学生走向思维的深处。