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1 If the voltage across a 5F capacitor is 2te -V, find the current and the power 2 In 5s, the voltage across a 40mF capacitor changes from 160v to 220V. Calculating the average current through the capacitor
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利用DIL 805A淬火变形膨胀仪测定了提速列车用Nb-V复合微合金化弹簧钢60Si2CrVAT过冷奥氏体的连续冷却转变曲线,并结合金相-硬度法探讨了不同冷速下实验钢组织的变化,分析了Nb含量对60Si2CrVAT过冷奥氏体的连续冷却转变的影响.结果表明:Nb含量的增加,促进了高温、中温转变,且珠光体转变区间随之变宽,马氏体转变点由284.2℃降低到258.3℃;铁素体消失的冷速由0.3·s-1提高到0.5·s-1,珠光体消失的冷速由2·s-1提高到3·s-1,贝氏体消失的冷速也相应地由3·s-1提高到5·s-1,贝氏体开始出现的冷速由0.4·s-1提高到0.6·s-1,马氏体出现的冷速同为1·s-1
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吉林大学:《英语泛读》课程电子教案(PPT课件)Lesson 5 From Mr. Walton’s Diary
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15-5 Several basis theorems for the Laplace transform 1.The linearity theorem{fi(t)+()}=()+(s) Example:
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《大学英语读写》课程教学资源(精讲四级教案)Unit 5 To Lie or Not to Lie—The Doctor’s Dilemma
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1 Background 2 The Critical-Section Problem (临界区问题) 3 Peterson’s Solution 4 Synchronization Hardware TestAndSet Instruction Swap Instruction 5 Semaphores 6 Classical Problems of Synchronization 7 Monitors 8 Synchronization Examples
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§0-1 标量场的梯度, 算符 Gradient of Scalar Field, Operator §0-2 矢量场的散度 高斯定理 Divergence of Vector Field, Gauss’s Theorem §0-3 矢量场的旋度斯托克斯定理 Rotation of Vector Field, Stoke’s Theorem §0-4 正交曲线坐标系中 运算的表达式 Expression of Operation on Orthogonal Curvilinear Co-Ordinates System §0-5 二阶微分算符 格林定理 Second-order Differentiation Operator, Green’s Theorem
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IIts lmportance The f&B can account for 2/5 or more of a hotel's profit The f&b is such an indisputable part of a lotel that in China a hotel is called grand restaurant
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中国计量大学:《大学英语读写教程》教学课件(第二版)Unit 5 The money game Section A Spend or save - The student's dilemma Section B A $3,000 dictionary
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Ch. 5 Hypothesis Testing The current framework of hypothesis testing is largely due to the work of Neyman and Pearson in the late 1920s, early 30s, complementing Fisher's work on estimation. As in estimation, we begin by postulating a statistical model but instead of seeking an estimator of 6 in e we consider the question whether
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