16.1 Water circulates through the hydrologic cycle (水文循环) The Earth's water is constantly circulating, powered by the heat of the sun and the force of gravity. Water evaporated from ocean precipitates(降水) into the ocean: direct route. Water evaporated from ocean is blown by winds until it is over the land and precipitates: (1) evaporates beck into atmosphere, (2). Infiltrate

Golden rice: two European scientists created a new strain of rice enriched in B-carotene, which the body uses to make vitamin A. This is a kind of transgenic plant(转基因植物)

The medicinal use of plants has been discovered more than 2000 years ago. Greek physician Dioscorides described the use of opium, in which morphine is the main component. In 1806, morphine was isolated from opium. In 1820, quinine was isolated from the bark of the cinchona tree

No molecule in a living organism is a permanent resident. Within 7 years, most of the molecules in a human body have been replaced by new one! Individual? Decided completely by the genetic code? No! An individual's identity is continually re-established each and every moment

Carbon atoms have the ability to link together and form molecules made up of many carbon atoms. The branch of chemistry that is the study of carbon-containing compounds is known as organic chemistry(有机化学) 13 million known organic compounds and 100,000 new ones are added annually Only 200,000-300,000 known inorganic compounds

第一章:概述 第二章:膜材料化学 第三章:膜制备化学 第四章:膜传递工学 第五章:渗析 第六章:亲和膜分离 第七章:膜控制释放技术

第一节单元系统相图的应用 第二节二元系统相图的基本类型

第一节固相反应类型 第二节固相反应机理 第三节固相反应动力学 第四节影响固相反应的因素

一、烧结的定义 物理性质变化:↓、气孔率↓、强度↑、致密 定义1: 缺点:只描述宏观变化,未揭示本质。 定义2: 衡量烧结的指标:收缩率、气孔率、吸水率、实际密度/理论密度

第一节相变概述 第二节相变分类 第三节成核-生长相变