High temperature corrosion tests in 75%Na2SO4-25%. NaCl molten salt have been conducted on waspalloy specimens plasma sprayed with Co-Cr-B-Si, Ni-Cr-B-Si-hCr3C2, X-40, X-40 + TiC and Ni/Al + Al2O3 coatings, test coupons were exposed isothermally at 750℃up to 200 h. After the corrosion tests, each sample was examined by OM, SEM and EMPA. It was found that X-40, X-40 + TiC and Ni/Al + Al2O3 were violently corroded by the molten salt due to cracking and spalling of the coatings, whereas Co-Cr-B-Si and Ni-Cr-B-Si + Cr3C2 exhibited superior corrosion resistance, which were thought to be related to the formation of chromium and silicon oxide film. A possible corrosion mechanism had been proposed and it is suggested that the excellent corrosion resistance and high hot-hardness of the two B-Si containing coatings may be of significance for applications in petroleum refining industry as

1. memorize the key words, expressions and sentence patterns in the texts 2. understand and follow the major ideas of optimism and positive thinking 3. tell stories of optimism and positive thinking using language knowledge learnt in the unit 4. make a figure report on the author of text B 5. analyze and evaluate the writing styles and techniques of Text A & B 6. write a letter on optimism and positive thinking using some of the writing techniques learnt

• Last lecture review • MOSFET and IGBT • Turn-on and turn-off transitions of power devices • Switching loss and power loss of power devices • New devices and other means for lowering loss

Part I Human Organization 1 Organization of the Body 2 Chemistry of Life 3 Cell Structure and Function 4 Body Tissues and Membranes 5 The Integumentary System Part II Support and Movement 6 The Skeletal System 7 The Muscular System Part III Integration and Coordination 8 The Nervous System 9 The Sensory System 10 The Endocrine System Part IV Maintenance of the Body 11 Blood 12 The Circulatory System 13 The Lymphatic System and Immunity 14 The Respiratory System 15 The Digestive System 16 The Urinary System Part V Reproduction and Development 17 The Reproductive System 18 Human Development and Birth 19 Human Genetics Appendices A Reference Figures: The Human Organism B Understanding Medical Terminology C Answers to MedAlert Questions D Further Readings

Chapter 1 Ten Principles of Economics Chapter 2 Thinking Like an Economist Chapter 3 Interdependence and the Gains from Trade Chapter 4 The Market Forces of Supply and Demand Chapter 5 Elasticity and Its Application Chapter 6 Supply, Demand and Government Policies Chapter 7 Consumers, Producers, and the Efficiency of Markets Chapter 8 Application: The Costs of Taxation Chapter 9 Application: International Trade Chapter 10 Externalities Chapter 11 Public Goods and Common Resources Chapter 12 The Design of the Tax System Chapter 13 The Costs of Production Chapter 14 Firms in Competitive Markets Chapter 15 Monopoly Chapter 16 Oligopoly Chapter 17 Monopolistic Competition Chapter 18 The Economics of Labor Markets Chapter 19 Earnings and Discrimination Chapter 20 Income Inequality and Poverty Chapter 21 The Theory of Consumer Choice Chapter 22 Frontiers of Microeconomics

Chapter 8 Objectives After you have read and studied this chapter, you should be able to Declare and manipulate data of the char data type. Write string processing programs using String and StringBuffer objects. Differentiate the String and StringBuffer classes and use the correct class in solving given task. Distinguish the primitive and reference data types and show how the memory allocation between the two is different

Chapter one Introduction: 1.1 Defining Microeconomics 1.2 Economic Theories and Models（经济理论与模型） 1.3 The Mathematics of Optimization（数学最优化） 1.4 Demand-Supply Model Chapter 2 Consumer Behavior and Demand Theory 2.1 Preference and Utility 2.2 Utility Maximization and Choice 2.3 Income and Substitution Effects 2.4 Market Demand and Elasticity

Foreword he State of the World's Forests reports every two years on the status of forests, recent major policy and institutional developments and key issues concerning the forest sector. This is the fourth edition of the publication, the purpose of which is to make current, reliable and policy-relevant information widely available to polic makers, foresters and other natural resource managers, academics, forest industry and civil society. Our hope is that it will facilitate informed discussion and decision making with regard to the world,s forests As we approach the benchmark year of 2002, the tenth anniversary of the United Nations Conference on Environment and Development (UNCED), it is an opportune moment to take stock of the progress

Chapter 1: Plasmids and Their Usefulness in Molecular Cloning Chapter 2: Bacteriophage and Its Vectors Chapter 3: Working with Bacteriophage M13 Vectors Chapter 4: Working with High-Capacity Vectors Chapter 5: Gel Electrophoresis of DNA and Pulsed-Field Agarose Chapter 6: Preparation and Analysis of Eukaryotic Genomic DNA Chapter 7: Extraction, Purification, and Analysis of mRNA from Eukaryotic Cells Chapter 8: In Vitro Amplification of DNA by the Polymerase Chain Reaction Chapter 9: Preparation of Radiolabeled DNA and RNA Probes Chapter 10: Working with Synthetic Oligonucleotide Probes Chapter 11: Preparation of cDNA Libraries and Gene Identification Chapter 12: DNA Sequencing Chapter 13: Mutagenesis Chapter 14: Screening Expression Libraries Chapter 15: Expression of Cloned Genes in Escherichia coli Chapter 16: Introducing Cloned Genes into Cultured Mammalian Cells Chapter 17: Analysis of Gene Expression in Cultured Mammalian Cells Chapter 18: Protein Interaction Technologies

Students will be able to: 1. grasp the layout and conventions of letter writing; 2. recognize the distinctions between personal letter and business letter; 3. write a letter using the right format and appropriate language. • Layout and conventions of letter writing • Business and personal letters: formal and informal distinctions