多媒体辅助教学在军校任职教育中的应用探讨

多媒体辅助教学独有的趣味性、直观性,可以充分调动学员的积极性和创造性,突破教学的重点与难点,实现教学效果的最优化。针对军校任职教育的特点,就多媒体辅助教学在任职教育中的应用及其优势与不足进行研究与探讨,对优化课堂教学、提高教学质量具有借鉴意义。     

圆锥形收敛流道中流体动能的理论解析：

根据塑料发泡中复杂流场流体动能气泡成核理论,对圆锥形收敛流道中的流体动能进行了理论解析。通过圆锥形收敛流道的流场分析,经过大量推导,得出了该种流道中流体剪切能、流体延伸能及流体总动能的理论解析。可以进一步用来定量分析圆锥形收敛流道中塑料熔体的气泡成核。     

《几何画板》在《高等数学》教学中的应用

《几何画板》是一个通用的数学教学环境,提供了丰富而方便的创造功能,使用户可以随心所欲地编写出自己需要的教学课件,是最出色的教学软件之一,其在《高等数学》函数、极限、定积分教学中的应用尤值推介。     

Investigation of Fogging on Glass Display Cases at the Royal Ontario Museum

ABSTRACT

Shortly after a major renovation at the Royal Ontario Museum, it was noticed that the glass panels in many of the new display cases exhibited fogging or hazing on the surface, sometimes in very specific patterns. Cleaning removed the fogging temporarily, but it began to reappear within 12 months. An investigation of fogged glass panels in display cases was undertaken to understand the source of the fogging and to develop an appropriate cleaning method. This included the analysis of residues from glass panels in several galleries, and surface imaging and compositional analysis of glass panels. The fogging residues on the glass panels consist mainly of sodium salts of organic acids and inorganic anions. Sources of the sodium in the residues include air particulate matter and the glass itself. The organic acids and inorganic anions that form salts with the sodium cations likely originate from volatile organic compounds (VOCs) and particulate matter in the air. Examination of the fogging patterns on the glass panels revealed that the sodium salts grow on marks made during cleaning attempts and the manufacturing process. These cleaning and manufacturing marks contain greasy residues that encourage crystal growth. Because of the variation in surface cleanliness, panels with more cleaning and manufacturing residues appear to be heavily fogged while those with less may appear to be unfogged in the museum display cases. A cleaning protocol was tested on two of the glass panels, and was found to remove all traces of grease and fogging residue.     

Modernization of an anatomy class: From conceptualization to implementation. A case for integrated multimodal–multidisciplinary teaching

It has become increasingly apparent that no single method for teaching anatomy is able to provide supremacy over another. In an effort to consolidate and enhance learning, a modernized anatomy curriculum was devised by attempting to take advantage of and maximize the benefits from different teaching methods. Both the more traditional approaches to anatomy teaching, as well as modern, innovative educational programs were embraced in a multimodal system implemented over a decade. In this effort, traditional teaching with lectures and dissection was supplemented with models, imaging, computer‐assisted learning, problem‐based learning through clinical cases, surface anatomy, clinical correlation lectures, peer teaching and team‐based learning. Here, we review current thinking in medical education and present our transition from a passive, didactic, highly detailed anatomy course of the past, to a more interactive, as well as functionally and clinically relevant anatomy curriculum over the course of a decade. Anat Sci Educ. © 2012 American Association of Anatomists.     

酱油渣中提取油脂和黄酮

[目的]探讨从酱油渣中提取油脂和黄酮类物质的最佳工艺参数,为酱油渣资源的进一步开发利用提供基础数据.[方法]在单因素实验的基础上,采用正交设计方法,研究各因素对油脂和黄酮提取率的影响.[结果]研究表明,油脂提取最佳条件为:酱油渣与异丙醇比例为1:13,超声温度50℃,超声时间30 min,该条件下油脂的提取率为34.76%;从脱脂酱油渣中提取黄酮的最佳条件为:50%乙醇、料液比1:30、超声时间15 min、提取温度60℃,在此条件下,黄酮的提取量为2.471 0 mg/g.[结论]利用超声波辅助提取技术从酱油渣中提取油脂和黄酮可行.     

微信辅助药理支架式教学的接受度及有效性评价

为在医学基础相对薄弱的药学专业学生中,改善药理学教学效果及影响,文章采用问卷调查的方法,在药理学学习时段及学习结束两年后的学生中,对微信辅助教学方法的参与环节、时段、影响因素、持续使用情况等进行了调查分析;结果表明微信辅助教学方式可提高学生学习药理学的动机目的,并可促进本学科与药学其他专业学科的结合,提升并巩固学习效果,促进学习的个性化和持续性。     

认知语言学在多媒体辅助“过程写作教学”中的应用

在中国大学英语教学中,写作教学一直是教学的难点。学生在写作中主要存在两方面的困难:一方面是构思困难,另一方面是表达困难。按照文章的不同体裁,采用过程写作教学法,通过阶段教学实验,把认知语言学理论研究成果运用于多媒体写作教学过程,能够消除不利于学生对知识消化理解的弊端,激发学生英语写作的兴趣,提高学生构思、写提纲、选择语言结构、组织篇章和运用语言的能力。     

运用多媒体辅助英语教学,培养学生的语用能力

长期以来,大学英语教学过分强调语言形式的习得,忽视语言的交际功能,强调准确性,忽视语言运用的得体性,其结果是学生虽然学到不少语言知识,但缺乏对语境的理解,交际效果并不理想,语用能力差。在新的时代背景下,应充分发挥多媒体在英语教学中的辅助作用,从教学观念、教学模式和教学内容着手,全面提高学生的语用能力。     

电教手段在物理实验教学中的效能

在物理实验教学中应用电教手段，可以对实验现象进行放大和模拟，加深学生对实验内容的理解，培训学生实验基本功，提高实验复习效果和实验效率。