共查询到20条相似文献，搜索用时 609 毫秒
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Raimond A. Struble 《Journal of The Franklin Institute》1978,306(1):63-76
It has been tacitly understood that Fourier's representation theorem applies only to a very restricted class of functions. On the contrary, by adopting an appropriate algebraic viewpoint, it is explained in this article how the theorem can be readily extended to include all (non-pathological) functions. 相似文献
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Louis Cohen 《Journal of The Franklin Institute》1922,194(6):765-770
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采样定理的截断误差分析 总被引：1，自引：0，他引：1
胡毅 《中国科学院研究生院学报》2008,25(4):460-466
讨论带限函数的Shannon采样定理截断误差的点态、一致和积分3种估计．对于点态 情形,用Dirichilet核的计算方法算出截断误差的阶为O(1/N);对于一致情形和积分情形,当 函数满足一定的衰减条件时,可分别得到收敛阶的一致及积分估计． 相似文献
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F.M. Reza 《Journal of The Franklin Institute》1983,316(3):279-290
A new theorem expands the domain of the scalar immittance functions Z(p) to the operator Z(T) where T(s) is an invertible linear passive n-port system. Elements R, L, C of Z(p) are replaced by operators RI, LT, and [CT] - 1. All frequency transformations may be considered contained in this theorem when T is a scalar. 相似文献
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《Journal of The Franklin Institute》1875,100(5):348-354
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Louis A. Pipes 《Journal of The Franklin Institute》1940,230(4):483-499
Starting with the energy and dissipation functions of the general n mesh linear bilateral network and using the operational methods of the Laplacian transformation, a solution is obtained for the Lagrangian equations of the system subject to initial boundary conditions. The equations take a particularly simple and general form if matrix notation is used.It is noted that the general case bears a close resemblance to the simple, one mesh, series circuit when the scalar factors which appear in this circuit are generalized to matrix form. 相似文献
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均值定理广泛应用于不等式的证明、求函数的最值及函数的值域等问题,也是数学竞赛中的热点问题,巧妙的应用均值不等式,可以灵活的解决许多数学问题。 相似文献
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高新技术企业R＆D网络形成的机理分析 总被引：2，自引：0，他引：2
R＆D网络组织是高新技术企业开展技术和知识创新的发展趋势，也是企业R＆D的重要组织模式。本文从管理学和经济学两个角度来揭示这种组织形成的基本机理，并探讨了R＆D网络形成的基本流程和提出未来研究的方向，以便更好地指导高新技术企业研发活动的开展。 相似文献
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针对中职学生的身体特征,通过中职学校的体育教学,学生在运动中的碰撞可能造成的伤害结果,分析动量定理在体育运动中速度与力量的分析,为体育教育在运动中的教学要求与判断提供科学依据,从而更好的提高教学水平。 相似文献
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Guangming Zhuang Jianwei Xia Weihai Zhang Junsheng Zhao Qun Sun Huasheng Zhang 《Journal of The Franklin Institute》2018,355(5):2179-2196
This paper investigates the problem of stochastic stability and stabilization of stochastic Markovian jump delay systems (SMJDSs) based on LaSalle theorem. The time delays are assumed to be time-varying and numerous stochastic disturbances are considered. Attention is focused on the design of the mode-dependent state feedback controller for SMJDSs based on LaSalle theorem such that the closed-loop SMJDSs are almost surely asymptotically stable. The sufficient conditions for the solvability of the state feedback control problem are obtained in terms of linear matrix inequalities (LMIs). When the LMIs are feasible, the desired state feedback controller is also given. Two numerical examples including the vertical take-off and landing (VTOL) helicopter system are employed to demonstrate the effectiveness and usefulness of the method proposed in this paper 相似文献
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董德周 《科技成果管理与研究》2007,(1):38-41
在《四色定理普遍地证明》研究中,我发现希伍德的"反例"和"五色定理"都是错误的.揭开了希伍德在证明"反例"上有重大错误的秘密,并证明希伍德的反例是4-色的;指出了希伍德套用数学归纳法来证明"五色定理"的做法是错误的;从而推翻了希伍德的"反例"和"五色定理",为《四色定理普遍地证明》打下了基础. 相似文献
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本文从高中物理教材中关于“动能定理”的讲解为出发点从教学实践中总结得出了对该定理深入广泛理解的方法和在对单个物体到物体系统应用的实例。 相似文献