Search results for "ideal"

Thermodynamics of Rubber Elasticity

2001

A thermodynamic study of an isotropic rubber band under uniaxial stress is presented on the basis of its equation of state. The behavior of the rubber band is compared with both that of an ideal elastomer and that of an ideal gas, considering the generalized Joule's law as the ideality criterion.

Espectros de Hegel en la archipolítica heideggeriana

2008

Rocio.Garces@uv.es A partir de una distinción interna a la lógica especulativa entre lógica espiritual y lógica espectral, este texto busca las huellas de los espectros de Hegel en la archipolítica heideggeriana. El hilo conductor es la posición de Kierkegaard frente a la dialéctica hegeliana para mostrar cómo la ontología de Heidegger depende de la comprensión kierkegaardiana del vínculo social en términos de nivelación y abstracción; del “fantasma del público” y del “espectro de la pura interioridad”. De tal modo que la presencia oculta de algunos espectros del hegelianismo en la obra de Heidegger va a condicionar su comprensión de la comunidad, sobre todo en lo que respecta a las atadura…

Dominio dello spirito e vivificazione dell’animo: sul rapporto fra volontario e involontario nel saggio schilleriano Grazia e dignità

2013

Campaigning for Strasbourg on Facebook: Introduction to a 12-Country Comparison on Parties’ Facebook Campaigns in the 2019 European Parliament Electi…

2021

European Parliament (EP) elections provide an ideal context for comparative studies on the communication strategies of political parties at national and European level. The 2019 EP election campaign allows analysing how the different political parties use Facebook to inform, interact with and mobilise voters. The study of the electoral campaign also enables the identification of differences and similarities between countries and between parties. This chapter introduces an edited volume that presents results of a quantitative content analysis of more than 12,000 Facebook posts published by political parties from 12 European countries in the last four weeks before the 2019 EP election. It des…

Une quête d'exactitude : machines, algèbre et géométrie pour la construction traditionnelle des équations différentielles

2015

In La Géométrie, Descartes proposed a “balance” between geometric constructions and symbolic manipulation with the introduction of suitable ideal machines. In particular, Cartesian tools were polynomial algebra (analysis) and a class of diagrammatic constructions (synthesis). This setting provided a classification of curves, according to which only the algebraic ones were considered “purely geometrical.” This limit was overcome with a general method by Newton and Leibniz introducing the infinity in the analytical part, whereas the synthetic perspective gradually lost importance with respect to the analytical one—geometry became a mean of visualization, no longer of construction. Descartes’s…

On numerical simulation of electromagnetic field effects in the combustion process

2018

This paper deals with a simplified model taking into account the interplay of compressible, laminar, axisymmetric flow and the electrodynamical effects due to Lorentz force’s action on the combustion process in a cylindrical pipe. The combustion process with Arrhenius kinetics is modelled by a single step exothermic chemical reaction of fuel and oxidant. We analyze non-stationary PDEs with 6 unknown functions: the 3 components of velocity, density, concentration of fuel and temperature. For pressure the ideal gas law is used. For the inviscid flow approximation ADI method is used. Some numerical results are presented.

FISH: Face Intensity-Shape Histogram representation for automatic face splicing detection

2019

Abstract Tampered images spread nowadays over any visual media influencing our judgement in many aspects of our life. This is particularly critical for face splicing manipulations, where recognizable identities are put out of context. To contrast these activities on a large scale, automatic detectors are required. In this paper, we present a novel method for automatic face splicing detection, based on computer vision, that exploits inconsistencies in the lighting environment estimated from different faces in the scene. Differently from previous approaches, we do not rely on an ideal mathematical model of the lighting environment. Instead, our solution, built upon the concept of histogram-ba…

La perversión de los ideales / 3

2008

Random Interruptions in Cooperation for Spectrum Sensing in Cognitive Radio Networks

2015

In this paper, a new cooperation structure for spectrum sensing in cognitive radio networks is proposed which outperforms the existing commonly-used ones in terms of energy efficiency. The efficiency is achieved in the proposed design by introducing random interruptions in the cooperation process between the sensing nodes and the fusion center, along with a compensation process at the fusion center. Regarding the hypothesis testing problem concerned, first, the proposed system behavior is thoroughly analyzed and its associated likelihood-ratio test (LRT) is provided. Next, based on a general linear fusion rule, statistics of the global test summary are derived and the sensing quality is cha…

Hegel’s Non-Metaphysical Idea of Freedom

2016

the article explores the putatively non-metaphysical – non-voluntarist, and even non-causal – concept of freedom outlined in Hegel’s work and discusses its influential interpretation by robert Pippin as an ‘essentially practical’ concept. I argue that Hegel’s affirmation of freedom must be distinguished from that of Kant and Fichte, since it does not rely on a prior understanding of self-consciousness as an originally teleological relation and it has not the nature of a claim ‘from a practical point of view’.