Analyses based on precipitation data may be limited by the quality of the data, the size of the available historical series and the efficiency of the adopted methodologies; these factors are especially limiting when conducting analyses at the daily scale. Thus, methodologies are sought to overcome these barriers. The objective of this work is to develop a hybrid model through the maximum overlap discrete wavelet transform (MODWT) to estimate daily rainfall in homogeneous regions of the Tocantins-Araguaia Hydrographic Region (TAHR) in the Amazon (Brazil). Data series from the Climate Prediction Center morphing (CMORPH) satellite products and rainfall data from the National Water Agency (ANA) were divided into seasonal periods (dry and rainy), which were adopted to train the model and for model forecasting. The results show that the hybrid model had a good performance when forecasting daily rainfall using both databases, indicated by the Nash–Sutcliffe efficiency coefficients (0.81–0.95), thus, the hybrid model is considered to be potentially useful for modelling daily rainfall.
In Dialectics of the Concrete (1963), Karel Kosík entered into a virtual dialogue with Herbert Marcuse on philosophy and social theory. Central to this discussion is the necessity and freedom dialectic. Kosík referred to several of Marcuse’s works, arguing that Marcuse aimed to abolish philosophy and replace it with social theory. I review two other of Marcuse’s significant works, which were written within this period and are relevant to Kosík’s argument. I conclude that there is great value in re-examining and going further into Marcuse’s extensive investigations of the necessity and freedom dialectic. Kosík’s assessments, based on Marx’s concept of labor in Theories of Surplus Value, and in Capital, vol. 3, on the potential of freedom in the realm of necessity, were ultimately truer than were Marcuse’s conclusions with respect to the development of the necessity and freedom dialectic from Hegel to Marx. But, unlike Marcuse’s approach, Kosík’s assessment of the philosophic dimension involved a conception of Schelling’s instead of Hegel’s ideas as the primary link to Marx’s concept of the dialectic of the realm of necessity and the realm of freedom – the transition from a capitalist to a post-capitalist society. Kosík’s approach obscured Hegel’s detailed examination and illumination of this issue, the brilliance of which involved a historical version of philosophy’s integration of social theory. The latter enabled Marx’s eventual consummation of his theory of the transition from a capitalist to a post-capitalist society, which remains, even to this day, the crucial issue underlying the on-going philosophy-social theory dialectic.
In this paper the numerical approximation of a two dimensional aeroelastic problem is addressed, where nonlinear effects are considered. For the flow model we use the Navier-Stokes equations, spatially discretized by the FE method and stabilized with a modification of the Galerkin Least Squares (GLS) method. The motion of the computational domain is treated with the aid of the Arbitraty Lagrangian Eulerian (ALE) method. The structure model is considered as a solid body with two degrees of freedom (bending and torsion). The motion is described with the aid of a system of nonlinear differential equations and coupled with the flow model by the strongly coupled algorithm. and Obsahuje seznam literatury