光敏电阻法测量表面活性剂在CO2中的浊点压力

浊点压力是描述CO2复合体系相行为的重要参数,目前确定浊点压力的主要方法是目测法,但是由于体系由澄清变浑浊是一个连续变化的过程,因此目测法存在很大误差.该文利用光敏电阻的阻值与感光强度成反比的特性,通过光敏电阻监测CO2体系的透光强度,得到电阻值随体系压力的变化曲线,通过曲线的拐点可以准确地确定体系的浊点压力.该方法可...     

新闻照片电脑编辑的负面效应

电脑图像处理技术的不断完善,为编辑和摄影提供了后期修补新闻照片的便利条件,但是这种电脑编辑的方式却促成了多种负面效应,本文援引美国教授埃德加绍华·黄(Edgar ShaohuaHuang)关于新闻照片电脑软件修补带来的影响的调查结果,提出编辑和记者应慎用电脑后期修补照片的看法,防止和避免因电脑编辑照片带来的负面效应。     

光量子理论的确立和发展

在介绍普朗克能量子理论和发现光电效应的基础上,论述了爱因斯坦光量子理论的产生、实验验证和形成过程,指出了光量子理论对现代物理学理论,尤其是量子力学发展的深刻影响。     

基于室内照明艺术的几点思考

室内照明绝不仅仅是灯具的选择与堆砌,而是一门光环境艺术.本文主要从照度与效果、光色与气氛、光照角度与心理感受、灯具的构图四个层面对室内照明艺术进行探讨.     

浅谈高职院校照片档案管理中存在的问题及对策

照片档案在高职院校进行宣传和见证发展历史方面的作用日益突出,但高职院校照片档案管理工作仍存在尚需完善的地方,只有对存在的问题加以解决,才能更好地发挥其在提供佐证方面的使命.     

数字图像处理技术在公安领域中的应用及发展前景

数字图像处理技术为公安工作提供了一个全新的操作平台。数字图像处理技术将数码摄影和图像处理技术结合起来以其独特的优势在公安领域中逐步开始担当重任,为广大的公安人员开阔了视野、拓展了思维空间,为执法的公正性提供了有力保证。     

Future Photographs of U.S. Women in Combat

Two grounded theory studies found that photo editors and producers were intent on publishing graphic photographs of women in combat if, and when, they are produced as women have begun to enter US Armed Forces combat units since January 2016. Editors said they aim to treat women the same as men when editing photographs of war, but showed hesitation upon seeing images of women in combat presented in this study, particularly when graphic. An individual level of influence was observed, as was concern for the audience that rivaled other social institutions within the hierarchy of influences. Interviewees in the first grounded theory study included 17 visual editors and producers of various newspaper, broadcast, and online US media companies. The second study included a different set of 20 editors/producers who participated in a think-aloud procedure showing them graphic photographs of women in combat.     

光伏效应的产生机理及应用

光伏效应是一种重要的光子效应,本文详细分析了它的产生机理和伏安特性,并简要介绍了它的应用.     

论摄影审美方式的独特性

摄影艺术中，审美方式的独特性有四个方面：在发现选择中实现平凡美的升华；在观察取舍中体现光影美的追求；在等待捕捉中完成瞬间美的凝聚；在构思导演中进行摄影美的再造。     

Young children’s photographs of measurement in the home

This article explores the use of children’s photography as a method for conducting mathematics education research with young children. Collected as part of a study focusing on the experiences with measurement children have at the start of schooling, the photographs presented here were taken by children aged five and six years, from two Australian primary schools. The children took a digital camera home and were asked to photograph things that they considered to be related to measurement. While the intended use of the photographs was to provide insight into the types of experiences children have with measurement in the home context, an additional outcome to emerge from the research was a deeper understanding relating to the strengths and weaknesses of using children’s photography and photo elicitation as a research method with young children. This article presents some of the insights gleaned from this mathematics education research, and examines the use of children’s photography and photo elicitation as a research strategy for working in early years research contexts.