943 resultados para concordia terremoto container negozi commercio


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The nonlinear amplitude equation, which was derived by Jian Yongjun employing expansion of two-time scales in inviscid fluids in a vertically oscillating circular cylindrical vessel, is modified by introducing a damping term due to the viscous dissipation of this system. Instability of the surface wave is analysed and properties of the solutions of the modified equation are determined together with phase-plane trajectories. A necessary condition of forming a stable surface wave is obtained and unstable regions are illustrated. Research results show that the stable pattern of surface wave will not lose its stability to an infinitesimal disturbance.

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Resumen: En el presente artículo se pretende precisar algunos aspectos que nos parecen centrales sobre el aporte de Tomás de Aquino a la noción de homónoia de Aristóteles. De tal forma que nuestro esfuerzo estará centrado, primero, en los aportes y profundización del Angélico al concepto homónoia o concordia, principalmente por medio de la precisión que identifica este entre la concordia y la justicia; y, segundo, en la comprensión de la concordia como causa eficiente del Estado o asociación política.

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The vibration analysis of an elastic container with partially filled fluid was investigated in this paper. The container is made of a thin cylinder and two circular plates at the ends. The axis of the cylinder is in the horizontal direction. It is difficult to solve this problem because the complex system is not axially symmetric. The equations of motion for this system were derived. An incompressible and ideal fluid model is used in the present work. Solutions of the equations were obtained by the generalized variational method. The solution was expressed in a series of normalized generalized Fourier's functions. This series converged rapidly, and so its approximate solution was obtained with high precision. The agreement of the calculated values with the experimental result is good. It should be mentioned that with our method, the computer time is less than that with the finite-element method.

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José da Silva Lisboa, Visconde de Cairu, nasceu na Bahia, em 19 de julho de 1756 e morreu no Rio de Janeiro, em 20 de agosto de 1835. Aos oito anos, como se distinguia pelo seu amor às letras, começou a aprender Gramática Latina, dedicando-se mais tarde também à Filosofia Racional e Moral, Música e piano. Na Universidade de Coimbra, fez os cursos jurídico e filosófico, formando-se em 1779. Foi professor das cadeiras de Filosofia, Moral e Língua Grega.