A Cauchy stress component at a given(fixed) point P of a structure in equilibrium under the action of external loads is defined when 1. the direction of the face on which the stress component acts is specified 2 the direction of the force from which the stress component is derived is specified None of the above statements

15.1 二元运算及其性质 第二节 代数系统

7.1 Introduction 7. 2 Origin and composition 7.3 Exopolysaccharide structure 7. 4 Medium composition for exopolysaccharide production

Paulings three rules governing the structure of ionic compounds 1. Anion Coordination polyhedron rule Each cation is surrounded by an anion polyhedron, the distance between anion and cation is r=rt tr, while the cn depends on rt/r

4.9 Comparison Between Slip and Twinning Similar ity Both slip and twinning are shear process under shear stress T I. Differences 1. Orientation 2. Atom movement 3.y,△ a) Structure: Twinning is easy 4. Conditions b) Temperature da d c) Strain rate (c

2. Classification of materials based on structure Regularity in atom arrangement periodic or not (amorphous)

➢Anomalies of Number ➢Anomalies of Size ➢Anomalies of Shape ➢Anomalies of Structure ➢Anomalies of Color

Chap. 9 Open Chain Mechanisms Chap. 9.1 Characteristics and Application Chap.9.2 Structure Analysis Chap.9.3 Kinematics of Open Chain Mechanisms

Introduction X Focuses on the structure of programs that use RPC, and shows how program can be divided along procedure boundaries Introduces the stub procedure concept and a program generator tool that automates much of the code generation associated with ONC RPC

1绪论 1.1混凝土结构的一般概念和特点 主要以混凝土材料,并根据需要配置钢筋、预应力筋、钢骨、钢管等,作为主要承重材料的结构 ,均可称为混凝土结构(Concrete Structure)