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In this lecture, we will consider how to transfer from one orbit, or trajectory, to another. One of the assumptions that we shall make is that the velocity changes of the spacecraft, due to the propulsive effects, occur instantaneously. Although it obviously takes some time for the spacecraft to accelerate to the velocity of the new orbit, this assumption is reasonable when the burn time of the rocket is much smaller than the period of the orbit. In such cases, the Av required to do the maneuver is simply the difference between the
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Preface The essence Th This document is intended to be a compilation of tips and tricks mainly related to efficient ways of manipulating arrays in MATLAB. Here, \manipulating arrays\includes replicating and rotating arrays or parts of arrays, inserting, extracting replacing, permuting and shifting arrays or parts of arrays, generating combinations and permutations of elements, run-length encoding and decoding
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10.1 Martensite Transformations 10.1.1 Characteristics 10.1.2 Thermodynamics 10.1.3 Crystallographic Theory 10.1.4 Kinetics 10.2 Martensite Transformations in Steels 10.2.1 Crystal structure of martensite in steels 10.2.2 Microstructure of martensite in steels 10.2.3 Stabilization of austenite 10.2.4 Mechanical properties 10.3 Bainite Transformations 10.3.1 Characteristics and Microstructures 10.3.2 Transformation Mechanism 10.3.3 Kinetics and influencing factors 10.3.4 Mechanical properties
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I. Choose the Correct Answer 1. Which of the following quantities are independent of the choice of inertial frame? (There may be more than one correct answer) (A)Velocity (B)Acceleration (C)Force (D)Work Solution: In all the inertial frame, the forces acted on a body are same,=ma=F'=ma', therefore the force and acceleration are independent of the choice of inertial frame
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In lecture D9, we saw the principle of impulse and momentum applied to particle motion. This principle was of particular importance when the applied forces were functions of time and when interactions between particles occurred over very short times, such as with impact forces. In this lecture, we extend these principles to two dimensional rigid body dynamics. Impulse and Momentum Equations Linear Momentum In lecture D18, we introduced the equations of motion for a two dimensional rigid body. The linear momen- tum for a system of particles is defined
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1 INTRODUCTION 2 TYPES OF POLYMERS 3 MOLECULAR STRUCTURE OF POLYMERS 4 POLYMER MORPHOLOGY 5 CHARACTERIZATION OF MOLECULAR WEIGHT 6 THERMAL TRANSITIONS IN POLYMERS 7 POLYMER SOLUBILITY AND SOLUTIONS 8 STEP-GROWTH(CONDENSATION)POLYMERIZATION 9 FREE-RADICAL ADDITION(CHAIN-GROWTH) POLYMERIZATION 10 ADVANCED POLYMERIZATION METHODS 11 COPOLYMERIZATION 12 POLYMERIZATION PRACTICE 13 RUBBER ELASTICITY 14 INTRODUCTION TO VISCOUS FLOW AND THE RHEOLOGICAL BEHAVIOR OF POLYMERS 15 LINEAR VISCOELASTICITY 16 POLYMER MECHANICAL PROPERTIES 17 PROCESSING 18 POLYMER APPLICATIONS:PLASTICS AND PLASTIC ADDITIVES 19 POLYMER APPLICATIONS:RUBBERS AND THERMOPLASTIC ELASTOMERS 20 POLYMER APPLICATIONS:SYNTHETIC FIBERS 21 POLYMER APPLICATIONS:SURFACE FINISHES AND COATINGS 22 POLYMER APPLICATIONS:ADHESIVES
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Part Ⅰ Introductory Topics 1 Introduction 2 Crop Germplasm 3 Reproductive System 4 Male Sterility 5 Self-incompatibility 6 Techniques of Artificial Hybridization 7 Genetic Basis of Plant Breeding 8 Selection 9 Interspecific and Intergenertic Hybridization 10 Plant variety protection Part Ⅱ Methods of Conventional Breeding 11 Pure-Line Selection 12 Mass Selection 13 Pedigree Method 14 Bulk-population Method 15 Backcross Method 16 Recurrent Selection 17 Mutation Breeding 18 Polyploid Breeding 19 Disease Resistance Breeding 20 Insect Resistance Breeding 21 Drought Resistance and Salt Tolerance Part Ⅲ : In vitro plant breeding 22 Introduction 23 Micropropagation 24 Haploid Plant Production In Vitro 25 In Vitro Pollination and Fertilization 26 Somatic Hybridization Using Protoplast Technology 27 Cell Culture and Selection of Desirable Traits 28 Genetic Engineering 29 Molecular Plant Breeding
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Introduction The notion of subgame perfection is the cornerstone of the theory of extensive games. It embodies its key intuitions-and provides a vivid example of the difficulties inherent in such a theor But, above all, it has proved to be extremely profitable in a variety of applications. More- over, it has spawned a huge theoretical literature which has attempted(often successfully
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Non-Inertial Reference Frame Gravitational attraction The Law of Universal Attraction was already introduced in lecture D1. The law postulates that the force of attraction between any two particles, of masses M and m, respectively, has a magnitude, F, given by F= (1) where r is the distance between the two particles, and G is the universal constant of gravitation. The value of G is empirically determined to be
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II. Viral Replication病毒复制 9.4 General Features of Virus Replication 9.5 Virus Multiplication: Attachment and Penetration 9.6 Virus Multiplication: Production of Virual Nucleic Acid and Protein 9.7 Virus Multiplications: Assembly and release of virus III. Viral Diversity 9.8 Overview of Bacterial Viruses 9.9 Virulent Bacteriophages and T4 9.10 Temperate Bacteriophages and Bacteriophage: Lambda
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