نتایج جستجو برای: cotes methods
تعداد نتایج: 1874857 فیلتر نتایج به سال:
Nowadays, the design of so-called consistent time-stepping schemes that basically feature a physically correct time integration, is still a state-of-the-art topic in the area of numerical mechanics. Within the proposed framework for finite elastoplasto-dynamics, the spatial as well as the time discretisation rely both on a Finite Element approach and the resulting algorithmic conservation prope...
Christopher K. Newman, Dana A. Knoll, T-3 Physics-based preconditioning is a highly successful approach for multiple-time-scale problems where an accurate simulation is desired on the dynamical time scale. In our research we are developing physics-based preconditioners for ocean simulation based on barotropic-baroclinic splitting. Our approach is a fully implicit, fully coupled time integration...
since its introduction in 1959, translation quality assessment (tqa) has been among the most addressed research topics in translation studies. during recent years, there has been a crucial increase on the study of tqa. various methods have come on scene. although these methods are based on scientific theories, most of them have remained at the level of theory. juliane house’s model is among tho...
power transformers are important equipments in power systems. thus there is a large number of researches devoted of power transformers. however, there is still a demand for future investigations, especially in the field of diagnosis of transformer failures. in order to fulfill the demand, the first part reports a study case in which four main types of failures on the active part are investigate...
For the unit sphere embedded in a Euclidean space, we obtain quadrature formulas that are exact for spherical harmonics of a fixed order, have nonnegative weights, and are based on function values at scattered points (sites). The number of scattered sites required is comparable to the dimension of the space for which the quadrature formula is required to be exact. As a part of the proof, we der...
In this paper we solve the problem about optimal interval quadrature formula for the class WrF of differentiable periodic functions with rearrangement invariant set F of their derivatives of order r. We prove that the formula with equal coefficients and n node intervals having equidistant midpoints is optimal for considering classes. To this end a sharp inequality for antiderivatives of rearran...
Similar as in the classical case of polynomials, as is known, paraorthogonal rational functions on the unit circle can be used to obtain quadrature formulas of Szegő-type to approximate some integrals. In the present paper we carry out a thorough discussion of the existence of such rational functions in terms of the underlying Borel measure on the unit circle
En medios áridos y semiáridos como el Sureste de la Península Ibérica, para captar las aguas subálveos ramblas, se utilizan sistemas combinados galería presa enterrada. Son complejos hidráulicos que obtienen recursos caudal variable, pero gran calidad. Solo pueden obtener aquellos caudales tras precipitaciones quedan acumulados en los depósitos arenas gravas lechos fluviales, renuevan cada epis...
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