Mechanical Engineering as a Profession 1、 Introduction Scientists study the world as it is, engineers create the world that never has been What is engineering Engineering is the art of applying scientific and mathematical principles, experience, judgment, and common sense to create things that benefit people In other words, engineering is the process of producing a technical product or system to meet a specific need What engineers do Engineers: Turning Ideas into Reality

Need to study structural mechanics to design properly to prevent failure There is no doubt that any of the disciplines of Aeronautics and Astronautics can contribute to an accident -engine failure -etc. But, the vast majority of non-human induced accidents is due to structural

Preparation What do you think of college? Or what kind of college life did you expect to have before you cametere? What do you expect to learn at college, more book knowledge or more practical social experience? Do you think you will relax after entering the college or you will study ten harder than in high school?

Unit two Section A: Environmental Protection throughout the world about the text Ecology is the study of the relationships among plants, animals, people, and their environment, and the balance among these relationships

Properties of Demand Functions Comparative statics analysis(比较 静态分析) of ordinary demand functions the study of how ordinary demands *(p,P2,y) and x2*(p1,P2,y) change as prices p1, P2 and income y change

Linguistic Meaning The meaning of linguistic items. (linguistic item= anything, from word, to a grammatical morpheme or a combination of words). Different from personal/social/ cultural meanings

Why does language provide such a fascinating object of study?

Study Goals of This Chapter Main Objectives in Current Plant Breeding General Principles for Decision of Plant Breeding Objectives

NMR spectroscopy in structure-based drug design Gordon CK Roberts NMR methods for the study of motion in proteins continue Structure and dynamics of the binding site improve, and a n d complexes Methodological developments in NMR of macromolecules relevant to drug design

Preface The BIOTOL series of texts are designed to provide a self-study resource concerning the principles, practices and applications of biotechnology. This text is designed to explain how biotechnology may be applied to solve problems encountered in the production and use of organic chemicals in a wide