A review of ancient Egyptian pigments and cosmetics

The pigments used by the ancient Egyptians constitute the most diverse pigment palette of the ancient world. This review discusses the pigments and binders which were used, arranged principally in terms of the colours themselves, namely, the white, green, grey, black, brown, blue, red, orange, and yellow pigments. The chemical identity of these pigments is discussed with some details regarding the artefacts or time periods from which the pigment concerned has been identified. Combinations of pigments were used for creating some colours, especially: greens, pinks, blues, yellows, and a variety of pale hues by mixing primary colours with a white addition, such as calcite. The identification of ancient Egyptian pigments is often aggravated by chemical interactions between pigment and binder media, or between the pigment and environmental pollutants, or both. The nature of the binders and varnishes used in ancient Egypt is briefly discussed. The identification of green pigments from ancient Egypt is often difficult, and some of the recent research concerning the topic is reviewed. In addition to including relevant details from older literature, this review provides a synopsis of recent studies which have appeared since the last major review carried out by Lee and Quirke in 2000.     

对我国奥运会田径优势项目竞技状况的分析

通过对第23～28届奥运会中国田径运动员比赛的成绩进行统计比较,研究结果显示:女子中长跑、女子竞走、女子投掷和男子跳跃4大类项目为中国奥运会田径传统优势项目,男子110m栏、女子链球和男子竞走等项目为奥运会田径新兴潜优势项目.     

利用计算机制作数学课件

利用PowerPoint制作数学课件;利用《几何画板》制作数学函数图像;利用公式编辑器编辑数学公式;利用Excel软件设计数学函数;利用计算机制作数学课件辅助数学教学;提高课堂教学效率。     

PCX格式图象文件的伪灰度打印

着重讨论了ＰＣＸ格式图象文件２５６色和１６色的存储格式及图象数据压缩原理，并给出了ＰＣＸ格式图象文件的通用打印源程序．     

LabVIEW在实际中的应用

通过实例介绍了 L ab VIEW的使用方法 ,并对结果进行了分析     

利用计算机制作数学课件

利用PowerPoint制作数学课件；利用《几何画板》制作数学函数图像；利用公式编辑器编辑数学公式；利用Excel软件设计数学函数；利用计算机制作数学课件辅助数学教学；提高课堂教学效率。     

我国奥运会田径优势项目实力分析及对策研究

通过对第23~28届奥运会中国田径运动员比赛的成绩进行统计比较,分析了我国田径的整体实力,研究结果显示:女子中长跑、女子竞走、女子投掷和男子跳跃四大类项目为我国奥运会田径传统优势项目,男子110m栏、女子链球和男子竞走等项目为奥运会田径新兴潜优势项目;田径整体水平不高的局面没有实质性改变,争金夺牌的项目偏少,优势项目成绩稳定性差,滑坡现象普遍存在,参赛能力有待提高,培养大量优秀的田径后备人才应作为我国田径运动长期发展的重中之重。