The stories of this unit demonstrate how things are not al ways as easy as they look; the grass is not lways greener on the other side. After learning it, Ss should be able to have a better learning of the hardships and problems of studying and living in a new country appreciate the text structure( paragraph structure as a general statement supported by some master the usage of the key words and expressions

7．认识分子间作用力和氢键的本质，会解释其对物质性质的影响。1．认识化学键的本质；2．掌握离子键的形成及其特点；3．掌握离子的特征，离子极化概念；4．掌握价键理论的内容；会用价键理论解释共价键的特征，会用价电子对互斥理论和杂化轨道理论解释简单的分子结构；5．初步认识分子轨道，掌握第二周期元素的分子轨道特点；6．理解金属键理论，特别是能带理论，会用能带理论解释固体分类； 2.1 化学键的定义 Definition of chemical bond 2.2 离子键理论 Ionic bond theory 2.3 共价键的概念与路易斯结构式 Concept of the covalent bond theory and Lewis’ structure formula 2.7 金属键理论Metallic bond theory 2.8 分子间作用力和氢键 Intermolecular forces and hydrogen bond 2.4 用以判断共价分子几何形状的价层电子对互斥理论 VSEPR for judging the configuration of the covalence molecular 2.5 原子轨道的重叠— 价键理论 Superposition of atomic orbital —valence bond theory 2.6 分子轨道理论Molecular orbital theory

第一节a,β-不饱和醛酮 a, B-unsaturated aldehydes and ketones 第二节醌 Quione 第三节羟基醛酮 hydroxy aldehydes and ketones 第四节酚醛和酚酮 henotic aldehydes and phenolic ketones 第五节紫外光谱 Ultroviolet spectra

Abstract: Several 13-alkyl substituted analogs of berberine and palmatine were found to be highly active against two types of Staphylococcus aureus(SI and S2)of different origin. The most active 13-hexylberberine was 8 times more active(against SI)and the same order active(against

Preface to the Second Edition The dairy industry continues to consolidate, with mergers reducing the number of companies producing dairy products. The number of dairy farms is also de- creasing, but the remaining farms are larger and the volume of milk they produce is increasing slowly. The amount and variety of dairy products are also increasing

this problem you will study how to represent various concepts and quantify various relations with membership functions when there is more than one universe of discourse. Use minimum to quantify the\and.\For each part below, there is more than one correct answer. Provide one of these and justify your choice in each case. Also, in each case draw the three-dimensional

problem you will study how to represent various concepts and quantify various relations with membership functions. For each part below, there is more than one correct answer. Provide one of these and justify your choice in each case. (a)Draw a membership function (and hence define a fuzzy set) that quantifies the set of all people of medium height

Fuzzy control does not exist as an isolated topic devoid of relationships to other fields, and it is important to understand how it relates to these other fields in order to strengthen your understanding of it. We have emphasized that fuzzy control has its foundations in conventional control and that there are many relationships to techniques, ideas, and methodologi there. Fuzzy control is also an\intelligent control\technique

Evaluation and universal machines The Eval/Apply Cycle What is the role of evaluation in defining a language? Eval and Apply execute a cycle that unwinds our abstractions Reduces to simple applications of built in

Slide 32.1.1 We have spent some time looking at computational objects that rency and asynchronous computing are built around the use of local state variables and methods for Object oriented approaches lose \referential transparency Referential transparency means equal expressions