Modeling of Normal Perforation of Reinforced Concrete Slabs by a Rigid Projectile

An analytical model on the normal perforation of reinforced concrete slabs is constructed. The effect of reinforcing bars is further hybridized in a general three-stage model consisting of initial cratering, tunnelling and shear plugging. Besides three dimensionless numbers, i. e. , the impact function /, the geometry function of projectile N and the dimensionless thickness of concrete target X, which are employed to predict the ballistic performance of perforation of concrete slabs, the reinforcement ratioρs of concrete and the tensile strength fs of reinforcing bars are considered as the other main factors influencing the perforation process. Simpler solutions of ballistic performances of normal perforation of reinforced concrete slabs are formulated. Theoretical predictions agree well with individual published experimental data.     

五年制师范生阅读能力提升的策略分析

在如今五年制的大专师范学习中,掌握阅读能力是不容轻视的,大专师范生若是想要在毕业后更好的从事教育工作,就一定要实现学习和工作的无缝连接。鉴于此,本文将从如何培养大专师范生阅读能力入手,希望对大专师范生的教学能力提高有所帮助。     

苯甲酸分子的简正振动与拉曼光谱

利用量子化学软件计算得出了苯甲酸分子的平衡构形,基于这个构形,理论上计算出了苯甲酸分子的简正振动光谱,并与实验测得的结果进行了比较,最后对其简正振动模式进行了全面归属.     

Interview-One of the Key Methods in Social Research

Interviewing is one of the most common and most powerful research methods in sociology. To provide an overview of interviewing in social research, the preliminaries and some tactics applied in interviewing are illustrated firstly. Secondly, various forms of interviewing employed in social research are analyzed specifically. Finally, the issues of interviewing are critically examined.     

关于正态总体抽样分布定理的证明和思考

用数学归纳法,对正态总体抽样分布中的两个定理给出了一种简单的证明,以期为概率论与数理统计的有效教学提供借鉴.     

地方高师院校教师职业倦怠与应对方式关系研究

通过对江西3所地方师范院校900名教师进行调查,结果发现:地方高师院校教师职业倦怠没有性别差异;不同婚姻状况、年龄、教龄和职称教师在情绪衰竭、去个性化和低个人成就感三个维度上都存在显著性差异;不同性别、年龄和婚姻状况的地方高师院校教师在应对方式不同因子上存在显著性差异;应对方式中解决问题、求助与情绪衰竭、去个性化、低个人成就感存在显著负相关;自责、幻想、退避、合理化与情绪衰竭、低个人成就感存在显著正相关。     

高师院校德育校本化的现实诉求

通过阐释德育校本化的基本内涵,结合高师院校的德育实际,说明高师院校德育校本化有其现实需要。高师院校德育应走校本化之路,这是高师院校彰显德育特色和个性、增强德育针对性和实效性、促进学校自身发展的必然选择。     

高师数学教学技能训练体系的构建与实践

目前高师数学教育对于学生教学能力的培养一直没有得到应有的重视,更没有有效地解决.对学生进行数学教学技能训练不能仅仅针对课堂教学环节,还要兼顾学生未来的职业发展,兼顾高师院校的培养目标以及专业培养要求.依据整体性、目标性、实践性和可操作性原则,将师德培养、课堂教学、技能训练、学法指导、教育实习、毕业论文撰写等环节作为一个整体,构建高师数学教学技能训练体系.该体系已经过多年的实践和推广,取得了明显成效.     

Waiting to inhale: how to unhurry the moment of birth

A doula and expectant mother's view of birth is forever changed when she sees a midwife simply place a newly born child below her mother at the moment of birth. The pause that the mother experiences in this moment as she studies, touches, and claims her child prompts the author to reflect in this guest editorial on ways we might be disturbing the natural sequence of birth as we deliver babies directly to their mothers' chests.     

师范生教学隐性知识的测量及其教育启示

结合斯腾伯格等人关于隐性知识、教学隐性知识的相关研究,教学隐性知识可以界定为在教育情境下的、存储于个人大脑中、难以明确表述的、与教学目标实现有关的知识。以师范大学生为研究对象,对国外已有的教学隐性知识量袁进行修订,结果显示修订的量表具有较好的信、效度指标;进一步对比研究显示,师范大学生、教龄2年以内的中学教师和教龄5年以上的中学教师间的教学隐性知识水平差异显著。这表明教学隐性知识及其量化的相关研究对我国的师范教育有重要的启示意义。