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1.瞒天过海 crossing the sea under camouflage
2.围魏救赵 relieving the state of Zhao by besieging the state of Wei 相似文献
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Stress analysis of anisotropic thick laminates in cylindrical bending using a semi-analytical approach 总被引:1,自引:0,他引:1
LU Chao-feng LIM C.W. XU Feng 《浙江大学学报(A卷英文版)》2007,8(11):1740-1745
Semi-analytical elasticity solutions for bending of angle-ply laminates in cylindrical bending are presented using the state-space-based differential quadrature method (SSDQM). Partial differential state equation is derived from the basic equations of elasticity based on the state space concept. Then, the differential quadrature (DQ) technique is introduced to discretize the longitu- dinal domain of the plate so that a series of ordinary differential state equations are obtained at the discrete points. Meanwhile, the edge constrained conditions are handled directly using the stress and displacement components without the Saint-Venant principle. The thickness domain is solved analytically based on the state space formalism along with the continuity conditions at interfaces. The present method is validated by comparing the results to the exact solutions of Pagano’s problem. Numerical results for fully clamped thick laminates are presented, and the influences of ply angle on stress distributions are discussed. 相似文献
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Tavis-Cummings模型中原子的纠缠度 总被引:1,自引:0,他引:1
1 Introduction Superposition principleis one of the fundamentals inquantum mechanics . A two-level atom may be in theground state |0〉,the excited state |1〉or the superpo-sition statesC0|0〉 C1|1〉. The coefficientsC0andC1are complex probability amplitudes of |0〉and |1〉respectively. For a system consisting of two atoms ,the state of total system may be in the direct productstates |0 ,1〉or |1 ,0〉. According to the superpositionprinciple ,the total system may also beinthe superpo-sition s… 相似文献
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This paper studies the micro-cutting characteristics of aluminum alloy (2A12) based on a series of orthogonal experiments and finite element method (FEM) simulations. An energy-based ductile failure law was proposed in the FEM simulation. The simulated cutting forces and chip morphology were compared with experimental results. The simulation result indicates that there is a close relationship between the cutting force and cutting heat. The micro-cutting force decreases as the heat flux vector increases. Both the cutting heat and the micro-cutting force need a finite time to achieve a steady state. It is observed that with the cutting speed of 169.95 m/min and uncut chip thickness of 6 μm, the heat flux vector in the workpiece increases to a stable value after 0.06 ms; meanwhile, the principal cutting force decreases to a steady state correspondingly, i.e., the micro-cutting process achieves the steady state. It is concluded that the steady state micro-cutting simulation can reflect the cutting process accurately. 相似文献
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The education system(教育体制) in the United States is controlled by state and local governments.So the Federal Government(联邦政府) has no power to establish a national educational system.Federal agencies(机构) do not make education policies.These decisions are made at the state or local levels. 相似文献
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Multi-photon ionization(MPI) in plasma is examined in terms of optical metric.and the quantum Volkov state in curved space-time is derived.The cross section of MPI is derived by virtue of the corrected Volkov state within the framework of quantum electrodynamics(QED) formal scattering theory.It shows that the plasma medium acts as a suppression on MPI. 相似文献
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Most of the Liaoning old industrial base enterprises are the skeleton industries and have massive state assets. The high share ofstate owned and the heavy debt are their characteristics. In order to optimize the state enterprises’capital structure the country cleaned up thebad account of bank and increased the number of listed companies in 1995.But the ways to pour a large sum of resources into the project can’tsolve the problem radically. The investment of government is going up but the benefit of enterpri... 相似文献
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CHERALATHAN M VELRAJ R. RENGANARAYANAN S. 《浙江大学学报(A卷英文版)》2006,7(11):1886-1895
INTRODUCTION Cool thermal energy storage (CTES) using the latent heat concept as an alternative to sensible heat storage offers a good option because of its high storage density and the nearly constant temperature heat removal characteristics during the discharging cycle. Since the principle of latent cool storage nec- essarily involves a change of state, heat transfer must occur in different modes depending on the state of charging and discharging. During the periods of low cooling dema… 相似文献
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张岚 《漯河职业技术学院学报》2012,11(1):189-190
新《中华人民共和国保守国家秘密法》对定密工作有了新的规定。定密是保密的源头,定密工作是保密工作的基础。抓牢源头,打好基础,保密工作才能事半功倍。作者从定密制度的"三道关"、定密责任人制以及建立健全定密工作管理体制三个方面详细阐述了对定密工作的个人观点。 相似文献
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在《理想国》中,柏拉图提出了建立哲学王统治国家的构想。柏拉图的哲学王国家虽然在政治制度上与共和国有较大的差距,但在价值理念上则具有一定程度的共和色彩。柏拉图哲学王圆家的共和色彩体现为:哲学王国家在某种意义上是自由国家、平等国家;哲学王国家是消除内乱的国家;哲学王国家是人们共享幸福的国家。 相似文献
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王刚 《信阳师范学院学报(哲学社会科学版)》2015,(1):21-26
德国古典哲学的国家普遍性思想是马克思国家学说的渊源之一。德国古典哲学起于康德、终于黑格尔,对马克思有重大影响的费尔巴哈哲学不能列位于德国古典哲学的系谱之中。德国古典哲学以国家为普遍意志的体现形式,作为普遍物的国家是公共利益的现实映射,达至普遍利益是国家这一共同体的本然目的;国家高于市民社会的国家主义观点是典型的国家中心论,从而有别于古典自由主义的社会中心论。德国古典哲学家,包括黑格尔,并未能真正地区分国家和社会的界域,马克思通过批判黑格尔的国家观而把国家归为由市民社会所决定的私利性的控制工具而非裹有道德迷雾的公益性的共同体组织。马克思对国家的理解也是社会中心论的工具主义范式。 相似文献
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文章根据多模压缩态理论,对强度不等的非对称两态叠加多模叠加光场的等幂次N-H最小测不准态出现的条件进行了详细分析与讨论,从而得出:(1)在qN的积取偶数时,若各对应模的强度及初始相位都相等,态恒处于等幂次N-H最小测不准态;(2)当各对应模的强度和初始相位不等,但在一定条件下,态亦可处于等幂次N-H最小测不准态. 相似文献
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文章按冯友兰先生的“四境界说”,从低到高排列将人生分为四种境界:自然境界、功利境界、道德境界、天地境界。自然境界、功利境界的人,是现在就是的人;道德境界、天地境界的人,是人应该成为的人:前两者是自然的产物,后两者是精神的产物。文章通过对这四种境界的具体分析,阐述了中国传统文化中的人生境界及道德观,同时分析了“天人合一”的认知方式及其对现代生活的意义。 相似文献
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服装是人的心理表现和人际心理交往的语言符号,它反映了广泛的包括人的心理在内的背景因素,是研究人类心理的途径和突破口。群体心理与服装行为、服装行为与人际心理之间的关系是服装行为与社会心理之间关系的具体反映。 相似文献
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计算了质量加权坐标系下NH3分子基态、激发态和离子基态势能面,研究了基态波包演化情况以及波包在基态激发态之间布居情况.通过研究证实了NH3分子存在拉伸振动,同时发现基态、激发态粒子数布居存在拉比振荡现象. 相似文献
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黄海东 《安庆师范学院学报(社会科学版)》2005,24(6):35-38
马克思扬弃黑格尔的“国家高于市民社会”理论,提出“市民社会决定国家”思想,确立了市民社会的基础地位与国家为市民社会服务的立场,展示了国家权力逐渐回归社会的方向。这一思想对于我国树立科学的社会——国家观,构建一个与国家适度分离而又良性互动的社会主义和谐社会,具有重要的现实意义。 相似文献