英语原文共 8 页， 教师对动画在物理教学中的运用的认知 摘要 本研究旨在探讨物理教师对于动画对物理学习与教学的影响之看法。向50名物理教师发放了25项调查问卷。问卷主要由两部分构成:一是动画对学习的积极影响;二是动画对教学的积极影响。调查结果显示，超过70%的受访者对动画对教与学的影响持正面看法。教师认为，利用动画教与学可以为学生创造积极的学习环境，激发学生的想象力和创造力。 1.简介 物理是一门经常被认为是困难和无聊的学科，主要是因为这门学科与一些不可观测的现象有关:例如，我们看不到电流(Rafael 2003)。使学习物理成为乐趣的一个方法是教师采用替代和创新的教学策略。Cooper和McIntyre(1996)认为学生喜欢激励他们学习的教学策略。Piburn和Baker(1993)指出，当学生有机会做作业和分组讨论时，�

The Halogen Free Flame Retarding Thermoplastic Polyurethane Elastomer of Research and Application Zhu feng， Hu yan Hangzhou JLS Flame Retardants Chemical Co., Ltd Abstract The thermoplastic polyurethane elastomer (TPU), which is accompanied with advantages of rubber and plastics, is used in wide applications. In the field of wire and cable, TPU owns many advantages, for example excellent weather-proof, flexible, abrasion-proof dimensional stability and so on. It is difficult to make TPU halogen free flame resistance, which based on melamine cyanurate / phosphate ester and ATH/Mg(OH)2 system commonly. The disadvantage of these systems is the high loading of filler that cause the TPU property and processability to become worsen. The paper focuses on disclosing the study of halogen free TPU composite based on halogen-free intumescent flame retardant. It can furthest hold the TPU of flexible and capability else. With such excellent properties, the composite increas

IS THERE THE BEST METHOD OF LEARNING PHYSICS? Abstract The question about the method of teaching and learning physics is one of the most important questions which should worry each teacher. Nowadays teachers and students are of-fered a great variety of methods. Teachers are advised to organize their lessons (and the whole teaching process) in an inter-active way and use active (stimulating, motivating) methods of teaching. These methods are supposed to ”force” students to become more active leading them to the precisely defined teaching targets (goals). The author of this article holds the opinion that using only one specific method is enough for students to learn physics successfully. It is the method of learning based on the method of scientific physics - the only most effective method of understanding our Nature. The main tasks of any physics teacher are to help students realize the purposes and the essence of this method as well as create favourable conditions so tha

A SCIENTIFIC METHOD BASED UPON RESERACH SCIENTISTSrsquo; CONCEPTIONS OF SCIENTIFIC INQUIRY Rebecca Reiff, Indiana University William S. Harwood, Indiana University Teddie Phillipson, Indiana University Within science education, clarifying the definition of inquiry has tended to focus on equipping teachers with methods to teach inquiry (Martin-Hansen, 2002; Colburn, 2000, Lederman, 1998). A key goal of science education reform, however, is to improve student understanding of scientific inquiry and ability to do scientific inquiry (National Research Council, 1996). A significant challenge to providing students with the opportunity to model how scientists do science is the persistent description of the scientific method. The literature contains papers written for teachers that foster a traditional understanding of the scientific method and encourage its use in the classroom (some recent examples include: Nelson, 1988; Haines, 1997; Siebert amp; McIntosh, 2001; Giunt

英语原文共 7 页， 具有调强线偏振光和液晶偏振旋转器的无死区4He原子磁强计 我们展示了一个基于原始钟花形结构的全光4He原子磁强计实验方案。利用单一强度调制的线偏振激光束，在4He蒸气中产生自旋极化，并在静态磁场下探测自旋进动。然后在调制频率及其谐波处对从蒸汽中发射的光信号进行相位敏感检测，从而产生原子磁共振信号。基于这种结构，我们在磁强计系统中加入了一个液晶，构成了一个偏振旋转器。通过控制施加在液晶上的电压，光线性偏振矢量可以与环境磁场方向保持垂直，而磁场磁场方向又提供最大共振信号幅度。此外，该系统具有约的磁场噪声地板，该噪声地板不会因液晶的存在和磁场方向的变化而退化。实验结果表明，该方法能消除死区效应，提高系统的空间各向同性，适用于移动应用。 C 2015 AIP出

英语原文共 4 页， 精密三角高程测量的应用 跨河水准测量 刘冠兰 武汉大学测绘学院 武汉大学 武汉,中国 Guanlan1984@163.com 徐亚明 武汉大学测绘学院 武汉,中国 ymxu@sgg.whu.edu.cn 摘 要 参照《国家一、二等水准规范》，在二等跨河水准的测量（测距三角高程法）中，采用两台全站仪同时对向观测（通过改进仪器和测量手段，实现了同时交互观测），减少了大气折射的影响，简化了工作流程，提高了工作效率。分析了各分组交互观测的准确性，保证了最终结果的准确性，并提出了改进的工作流程。 关键词 精密三角高程测量；精密水准测量；跨河水准；测量机器人 1 概述 跨河水准测量是大地测量和控制测量中跨越江河水域进行精密高程传递的主要手段。根据《国家一、二级水准规范》，跨河水准

英语原文共 6 页， 在纳米间距近场热辐射的最大能量转移 由于光子隧道和表面声子极化激元的激发使得在纳米间距热辐射转移可以超越黑体辐射几个量级。虽然在最近理解近场热辐射取得了重大的进展，然而一个显著的问题是对于在有限的分离距离下任意选择的材料特性是否存在一个近场辐射的上限。我们研究了真空间隙从0.1纳米到100纳米的两块平行板之间的最大辐射热流。通过假设一个与频率无关的介电函数和引入一个截止平行波矢量分量，我们发现两种介质的理想介电函数将使近场辐射传输最大化为-1 idelta;, delta;是虚部部分。对于大于1纳米的真空间隙，近场传热在delta;⪡1时达到峰值，在亚纳米间隙处，能量转移的峰值移向的delta;的最大值。在纳米间距最大辐射通量的测定将有益于近场辐射在能量收集和纳米热制造的新应用�

Teacher Quality Research shows that good teaching matters, but considerable debate continues over which policies and practices will help promote high-quality teaching. In general, the preponderance of evidence concludes that effective teachers are capable of inspiring significantly greater learning gains in their students when compared with their weaker colleagues. Most of this evidence is based on “value added” analyses of large sets of data linking individual studentsrsquo; test scores to their teachers. Such studies determine students average annual rates of improvement, as measured by test scores. They estimate how much value a teacher has contributed to student achievement, factoring in the gains the student was expected to make based on past performance, and in some cases, controlling for elements such as peer characteristics and background, including poverty level and family education. Factors such as family background continue to predict a majority

英语原文共 51 页， 论文翻译 BRUNN-MINKOWSKI 不等式 介绍 所有的数学家都知道在平面中的等周不等式为 ， 其中A是一个以周长为L的封闭区域。很多包括那些阅读过Osserman的长篇调查文章的人，都意识到等周不等式（1）不仅仅对于欧氏空间成立，同样对更多不同的普通空间也成立，这些等周不等式和一些重要的分析不等式紧密相连，由此产生的迷宫般的不平等，在数学和物理的许多领域都有不同寻常的联系和应用。 在注解[124,p.1190]中提到的就是Brunn-Minkowski不等式。这个表达的一种形式是：如果K和L都是Rn中的凸集（内部非空的紧凸集）且，那么有 这里的和表示体积及体积和。（这些将在第二第三章被定义）。当K和L是平移和扩张关系时等号才成立。Osserman强调这个不等式很容易证明且很快可以为推出

英语原文共 30 页， 一种无惩罚函数或滤波器的非线性等式约束优化序列二次规划方法[1][2] 刘新伟^和亚祥元* 摘要。 我们提出了一种序列二次规划方法，不使用惩罚函数或滤波器来求解非线性等式约束优化。 在每次迭代中，二次规划的线性化约束被放松以满足两个温和的条件，选择步长使目标函数的值或约束违反的度量得到充分的降低。 因此，我们的方法有两个很好的性质。 首先，我们不需要假设迭代序列的有界性；其次，我们不需要任何恢复阶段，这是必要的滤波方法。 我们证明了该算法将终止在一个近似的Karush-Kuhn-Tucker点，或一个近似的Fritz-John点，或一个近似不可行的平稳点，它是一个近似的平稳点，用于最小化约束违反的规则。 通过控制线性化约束的精确性，引入二阶校正技术，在不需要线性独立性约束限定的情况