Ikenes are hydrocarbons that contain a carbon-carbon double bond. A car- bon-carbon double bond is both an important structural unit and an important functional group in organic chemistry. The shape of an organic molecule is influ- enced by the presence of this bond, and the double bond is the site of most of the chem- ical reactions that alkenes undergo. Some representative alkenes include isobutylene(an industrial chemical), a-pinene (a fragrant liquid obtained from pine trees), and farnesene (a naturally occurring alkene with three double bonds

8.1 The metallic bond and the general properties of metals 8.2 Close packing of spheres and the structure of pure metals 8.3 The structures and properties of alloys

he Greek word stereos means\solid, \and stereochemistry refers to chemistry in three dimensions. The foundations of organic stereochemistry were laid by Jacobus van't Hoff* and Joseph Achille Le Bel in 1874. Independently of each other, van't Hoff and Le Bel proposed that the four bonds to carbon were directed toward the cor- ners of a tetrahedron. One consequence of a tetrahedral arrangement of bonds to carbon

第一节 概述 第二节 心力衰竭的病因和诱因 Causes and predisposing factors of heart failure 第三节 心力衰竭的分类 Classification of heart failure 第四节 心力衰竭的发病机制 Mechanisms of heart failure 第五节 心功能不全的代偿机制 Compensatory mechanisms to cardiac insufficiency 第六节 心脏泵血功能障碍对机体的主要影响 Consequences of the pumping dysfunction 第七节 心力衰竭防治的病理生理基础 Pathophysiological basis of prevention and treatment for heart failure

I. Ointments II. Compendial requirements for ointments III. Creams IV. Gels V. Miscellaneous semisolid preparations: pastes and plasters VI. Features and use of dermatologic preparations VII. Features and use of ophthalmic ointments and gels VIII. Features and use of nasal ointments and gels IX. Features and use of rectal preparations X. Features and use of vaginal preparations

3.1 Introducing the Derivative 3.2 Rules of Differentiation 3.3 The Product and Quotient Rules 3.4 Derivatives of Trigonometric Functions 3.5 Derivatives as Rates of Change 3.6 The Chain Rule 3.7 Implicit Differentiation 3.8 Derivatives of Logarithmic and Exponential Functions 3.9 Derivatives of Inverse Trigonometric Functions 3.10 Related Rates

-- PN Junction -- Large-Signal and Small-Signal Models of Bipolar Transistors -- Large-Signal and Small-Signal Models of MOS Transistors -- Comparison of BJT and MOS transistors

◆7.0 Introduction ◆7.1 Design of Discrete-Time IIR Filters From Continuous-Time Filters ◆7.2 Design of FIR Filters by Windowing ◆7.3 Examples of FIR Filters Design by the Kaiser Window Method ◆7.4 Optimum Approximations of FIR Filters ◆7.5 Examples of FIR Equiripple Approximation ◆7.6 Comments on IIR and FIR Discrete-Time Filters

Beyond Preemption: The Law and Policy of Intellectual Property Licensing Mark A. Lemleylt Table of Contents Introduction ion Retween article and Int I. The Tension Between Article 2B and Intellectual Property A. Article 2B's Expansion of the Scope and Power of Contractsintellectu B. Potential Conflicts with Intellectual Property Law

◆2.1 Discrete-Time Signals: Sequences ◆High and Low Frequencies in Discrete-time signal ◆2.2 Discrete-Time Systems ◆Memoryless (memory); Linear; Time-Invariant; Causality; Stability(BIBO) ◆2.3 Linear Time-Invariant (LTI) Systems ◆LTI Systems:Convolution( 系统适用吗?) ◆2.4 Properties of LTI Systems ◆Stability and Causality of LTI systems;FIR and IIR systems ◆2.5 Linear Constant-Coefficient Difference Equations ◆The output for a given input is not uniquely specified. Auxiliary conditions are required; initial-rest conditions ◆2.6 Frequency-Domain Representation of Discrete￾Time Signals and systems ◆ Eigenfunction and Eigenvalue for LTI systems ◆2.7 Representation of Sequences by Fourier Transforms ◆2.8 Symmetry Properties of the Fourier Transform ◆2.9 Fourier Transform Theorems ◆2.10 Discrete-Time Random Signals