3.1 S7-300PLC的模块特性 3.2 S7-400PLC的模块特性 3.3 PLC系统的硬件组态

9.1 I/O接口扩展概述 9.1.1 扩展的I/O接口功能 9.1.2 I/O端口的编址 9.1.3 I/O数据的传送方式 9.1.4 I/O接口电路 9.2 AT89S52扩展I/O接口芯片82C55的设计 9.2.1 82C55芯片简介 9.2.2 工作方式选择控制字及端口PC置位/复位控制字 9.2.3 82C55的3种工作方式 9.2.4 单片机扩展82C55的接口设计 9.2.5 AT89S52扩展82C55的应用举例 9.3 利用74LSTTL电路扩展并行I/O口 9.4 用AT89S52单片机的串行口扩展并行口 9.4.1 用74LS165扩展并行输入口 9.4.2 用74LS164扩展并行输出口 9.5 用I/O口控制的声音报警接口 9.5.1 蜂鸣音报警接口 9.5.2 音乐报警接口

 S1. Introduction  S2. LS Method  S3. RLS algorithm  S4. Examples

1 Preliminary 11 Introduction 12 Cardinality 13 Topology of the Euclidean space 14 Metric space and Baire Category theorem 15 Continuous functions and Distance in metric space 151 Hausdorff distance and Gromov-Hausdorff distance 152 Invariant of domain 2 Lebesgue measure 21 Exterior measure 22 Measure 23 Borel sets and Measurable sets 24 Linear transformation of measurable sets 25 Sets of positive measure 3 Measurable functions 31 Measurable functions 32 Simple functions 33 Littlewood’s Three principles 4 Lebesgue’s integration theory 41 Integration 42 Interchanging limits with integrals 43 Lebesgue vs Riemann 44 Fubini’s Theorem 5 Differentiation 51 Monotone functions 52 Fundamental theorem of Calculus I 521 A detour: Bounded variation functions 53 Fundamental theorem of Calculus II 54 Lebesgue Differentiation Theorem 6 Function spaces 61 L P spaces 611 Normed vector space 612 A detour: Convexity and Jensen’s inequality 613 Completeness: Banach space 614 Separability 62 Hilbert space:

§20.1 s区元素概述 §20.2 s区元素的单质 §20.3 s区元素的化合物 §20.4 锂 、铍的特殊性对角线规则

Number Theory 1. Six proofs of the infinity of primes …… 3. Binomial coefficients are (almost) never powers 4. Representing numbers as sums of two squares …… 8. Some irrational numbers 9. Three times π2/6 Geometry 10. Hilbert’s third problem: decomposing polyhedra63 11. Lines in the plane and decompositions of graphs …… 15. The Borromean rings don’t exist …… 17. Every large point set has an obtuse angle 18. Borsuk’s conjecture Analysis …… 21. The fundamental theorem of algebra …… 25. Cotangent and the Herglotz trick 26. Buffon’s needle problem Combinatorics 27. Pigeon-hole and double counting …… 32. Cayley’s formula for the number of trees 33. Identities versus bijections …… 36. The Dinitz problem247 37. Permanents and the power of entropy253 …… 41. Communicating without errors 42. The chromatic number of Kneser graphs …… 44. Probability makes counting (sometimes) easy

 S1. Filters: devices of signal processing  Classic Filter  Optimal Filter  Adaptive Filter  S2. Adaptive filtering applications  S3. Stochastic processes  Partial characteristic: Autocorrelation Matrix (ACM)  PSD  Linear parametric model  S4. Mean Square Information Space

9.1 I/O接口扩展概述 9.1.1 扩展的I/O接口功能 9.1.2 I/O端口的编址 9.1.3 I/O数据的传送方式 9.1.4 I/O接口电路 9.2 AT89S52扩展I/O接口芯片82C55的设计 9.2.1 82C55芯片简介 9.2.2 工作方式选择控制字及端口PC置位/复位控制字 9.2.3 82C55的3种工作方式 9.2.4 单片机扩展82C55的接口设计 9.2.5 AT89S52扩展82C55的应用举例 9.3 利用74LSTTL电路扩展并行I/O口 9.4 用AT89S52单片机的串行口扩展并行口 9.4.1 用74LS165扩展并行输入口 9.4.2 用74LS164扩展并行输出口 9.5 用I/O口控制的声音报警接口 9.5.1 蜂鸣音报警接口 9.5.2 音乐报警接口

建立了矩形截面包覆材料交流功率损耗的数值计算模型,分析了铜包铝导电扁排断面形状结构对交流功率损耗的影响.结果表明:当断面积为S=600mm2时,功率损耗系数随扁排宽厚比b/a的增大而增加;断面积为S=800mm2和1000mm2时,随宽厚比b/a的增加,功率损耗系数先增大后减小;而当断面积为S=1200mm2时,随宽厚比b/a的增大,功率损耗系数减小且减小趋势逐渐变缓.当扁排厚度为a=10mm,断面积S为800~1200mm2时,交流功率损耗随窄边和宽边的铜层厚度比(δh/δw=0.5~3.0)增加而减小;铜层厚度之比对功率损耗的影响随包覆层面积比(SA=15%~45%)的增加而增大.在单位长度直流电阻和载流量与铜扁排相等时,选择合适的扁排断面形状结构,铜包铝扁排可较为明显地降低功率损耗

通过热动力学分析、理论计算和实验,确定在碱性条件下用NaClO作氧化剂,Na2S和FeSO4作还原剂处理混合电镀废水的工艺流程,并通过计算和实验确定了Na2S与FeSO4的最佳药剂比:Na2S为80%~90%,FeSO4为10%~20%.Na2S+FeSO4比单独使用FeSO4少产生60%~70%的污泥.该工艺在实际工程运行过程中效果良好