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§10-1 基本概念 §10-2 阻抗(导纳)对频率响应的作用 §10-3 正弦稳态网络函数 §10-4 正弦稳态的叠加 §10-5 平均功率的叠加 §10-6 RLC电路的谐振
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§9-1 基本概念 §9-2 电阻的平均功率 §9-3 电感、电容的功率 §9-4 单口网络的平均功率 §9-5 单口网络的无功功率 §9-6 复功率和复功率守恒 §9-7 正弦稳态最大功率传输定理
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比较了镁和稀土的球化能力及效果。当稀土残留量与镁残留量之比为3:1时,两种球化剂的球化能力相等。原铁水成份为C ≥ 40%,C·E ≥ 57%,稀土处理后,铁水中S ≤ 0.01%,RE ≥ 0.1%时,白口倾向与镁处理结果没有差别。在100kg铁水包内进行稀土喷射冶金的结果表明,稀土处理脱硫速度快,效率高,脱硫限度接近热力学平衡常数。所得铁水中终硫含量都在0.01%以下,有利于获得良好的球化效果。将硅铁粉与稀土混合喷入可使脱硫、球化和孕育3个过程一次完成,这也是传统方法不具备的特点
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利用热力学计算软件FactSage计算出CaO-SiO2-Al2O3-MnO四元系各成分的活度数据,并通过热力学计算分析了帘线钢获得良好变形能力的CaO-SiO2-Al2O3-MnO四元系夹杂物生成所需的条件,验证了本文所介绍方法的可行性.指出为得到塑性区的CaO-SiO2-Al2O3-MnO系夹杂物,要控制CaO-SiO2-Al2O3-MnO四元系夹杂物中Al2O3为20%,LF精炼炉中钢液的酸溶铝[Al]s含量应小于3×10-6,溶解氧含量应在2.0×10-5~6.0×10-5之间
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is a vector equation that relates the magnitude and direction of the force vector, to the magnitude and direction of the acceleration vector. In the previous lecture we derived expressions for the acceleration vector expressed in cartesian coordinates. This expressions can now be used in Newton's second law, to produce the equations of motion expressed in cartesian coordinates
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8.1 系统并行扩展结构 8.2 地址空间分配和外部地址锁存器 8.2.1 存储器地址空间分配 8.2.2 外部地址锁存器 8.3 静态数据存储器RAM的并行扩展 8.3.1 常用的静态RAM(SRAM)芯片 8.3.2 外扩数据存储器的读写操作时序 8.3.3 AT89S52单片机与RAM的接口设计与软件编程 8.4 片内Flash存储器的编程 8.4.1 使用通用编程器的程序写入 8.4.2 使用下载线的ISP编程 8.5 E2PROM的并行扩展 8.5.1 并行E2PROM芯片简介 8.5.2 E2PROM的工作方式 8.5.3 AT89S52单片机扩展E2PROM AT2864的设计
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流射沸腾冷却强化的核心是利用常压水形成的水柱,以一定的速度贯穿水层,与钢板表面直接接触,产生核沸腾区,引起了强烈沸腾,通过对射流出口速度、高度、直径及水柱间距的优化的实验研究,达到了在整个钢板横截面上获得极强冷却区的效果,对于20mm厚的钢板,冷却速度可达45.2℃/s,板形精度可达3mm/m
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Chapter I – Principles of Regulatory Law in Regulatory States I - Founding Principles § 1 – The Emergence of Competition Law as General Regulatory Law § 2 - The Emergence of Sectorial Regulatory Law § 3 - Why Regulate ? - The Foundations of Public Action II – Principles Governing the Regulation Process § 1 – Regulatory Agencies and the Independence Principle §2 - Principles Governing Regulatory Agencies’ Action Chapter II – Principles of Regulatory Systems in Post-Regulatory States I – Multiplication of Regulation Levels § 1 - Global Regulation § 2 – The Increase of Private Self Regulation § 3 - The Increased Regulatory Function of Private Law II. Private Enforcement of Regulatory Law § 1 – The U.S. Regime of Private Enforcement of Regulatory Law: the Most Fully Developed among Modern Systems § 2 – The Emergence/development of Private Enforcement of Regulatory Law in Europe
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Additional lnformation for the Teacher’s Reference Text The Ant and the grasshopper Warm-up Activities Further Reading Speaking Skills Additional Work The Ant and the Grasshopper Notes Main Idea of the Text Introduction to the Author and the Article Phrases and Expressions Exercises
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A point at which two or more elements have common connection is called node(节点). Suppose that we start at one node in a network and move through a simple element to the node at the other..., if no node was encountered more than once, then the set of nodes and elements that we have passed hrough is defined as path(路径)
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