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哲学电子书合集(PDF):《希腊悲剧时代的哲学》【德】尼采
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1989年秋冬发生的东欧政局的剧变,改变了战后世界政治的格 局,是当代世界历史的重大事件。五年来,国内外学者纷纷撰文著书, 从不同的立场评说东欧之变。有的西方政治家把它归结为“社会主义 的大失败
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1、 选定厂址(此前需进行可行性报告及市场前景,并出具经济效 益及财务分析报告)。 2、 进行地质及水文堪探,标定零平面,并出具整个厂区的地质勘 探报告
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现在来考虑这么一种力,这种力活象引力,也是与距离平方成反比地变化的,但比引力 要强约一万亿亿亿亿倍.另外还有一点区别,即存在两种我们可称之为正的和负的物质,种 类相同的相斥,不同的相吸,这就不象引力,那里只存在吸引,这样会出现什么情景呢? 堆正的物质会以巨大之力互相排斥,并向四面八方救开,一堆负的物质亦然.但一堆 正和负均匀混合的物质就完全不同了.相反的物质会以巨大的吸引力互相拉挽着,净结果 将把那些可怕的力差不多完全抵消了,这是通过形成坚牢而又精致的正和负的混合体达 到的,而这样两堆分开着的混合体之间实际上就不再存在任何引力或斥力了
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本书试图既从理论上、又从实践上向读者提供氧化沟的有关资料。为了使设计人员能够一举获得一切所需的资料,我们把设计中的动力学理论基础与实验数据和方程式融为一体,通过大量的例子来指导读者利用这些资料。本书所列的数据、动力学常数以及劳动力需要量之类的资料,为读者提供了一个有关氧化沟的综合资料来源
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Electrical Engineering Textbook Series Richard C. Dorf, Series Editor University of California, Davis Forthcoming Titles Applied Vector Analysis Matiur Rahman and Issac Mulolani Optimal Control Systems Subbaram Naidu Continuous Signals and Systems with MATLAB Taan ElAli and Mohammad A. Karim
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One of the most powerful tools for the analysis of electromagnetics problems is the integral solution to Maxwell’s equations formulated by Stratton and Chu [187, 188]. These authors used the vector Green’s theorem to solve for E˜ and H˜ in much the same way as is done in static fields with the scalar Green’s theorem. An alternative approach is to use the Lorentz reciprocity theorem of § 4.10.2, as done by Fradin [74]. The reciprocity
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4.1 Interpretation of the temporal transform When a field is represented by a continuous superposition of elemental components, the resulting decomposition can simplify computation and provide physical insight. Such rep￾resentation is usually accomplished through the use of an integral transform. Although
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2.1 The postulate In 1864, James Clerk Maxwell proposed one of the most successful theories in the history of science. In a famous memoir to the Royal Society [125] he presented nine equations summarizing all known laws on electricity and magnetism. This was more than a mere cataloging of the laws of nature. By postulating the need for an additional term to make the set of equations self-consistent
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Appendix E Properties of special functions E.1 Bessel functions Notation
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