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Ágnes Nagy
The density functional theory proposed earlier for excited states of Coulomb systems is discussed. The localized Hartree?Fock (LHF) and the Krieger, Li, and Iafrate (KLI) methods combined with correlation are generalized for excited states. Illustrative ...
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Csaba Budai, László L. Kovács
Pág. 266 - 271
In this paper, we investigate the combined effect of viscous damping and Coulomb friction on sampled-data mechanical systems. In these systems, instability can occur due the sampling of the applied discrete-time controller which is compensated by the two...
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Csaba Budai, László L. Kovács
Pág. 176 - 181
This paper investigates the stability of a digitally controlled pendulum with Coulomb friction as primary source of dissipation. We focus on the stabilizing effect of friction against vibrations due to the otherwise unstable parameter settings, and we sh...
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Szandra Éva Mikó
Pág. 50 - 57
Friction is present in most mechanical systems. The aim of this paper is to analyse friction between a pneumatic cylinder and its piston seal using the finite element method (FEM). The high-fidelity numerical model used real geometry and material charact...
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Gergely Gyebrószki, Gábor Csernák
Pág. 148 - 155
Digital effects (quantization, sampling and delay) can lead to small amplitude chaotic oscillations, called micro-chaos [1, 2]. Often, these vibrations are neglected due to their small amplitude or replaced by random noise, but doing so one might b...
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Xiao-Yin Pan and Viraht Sahni
Dissipative effects arise in an electronic system when it interacts with a time-dependent environment. Here, the Schrödinger theory of electrons in an electromagnetic field including dissipative effects is described from a new perspective. Dissipation is...
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Hongwei Zhang, Zhijun Wan, Dan Ma, Bo Zhang and Peng Zhou
Injecting water into a coal seam to enhance the cohesive strength of coal and thus minimize and reduce the coal wall spalling risk must be considered in underground coal mining systems. In general, coal with low cohesive strength contains clay minerals w...
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Martín Turienzo,Luis Dimieri,Cristina Frisicale,Vanesa Araujo,Natalia Sanchéz
Pág. 317 - 357
In the Argentinean side of the Andes at 34°40?S, the Cenozoic Andean orogeny produced the thick-skinnedMalargüe fold-and-thrust belt and the easternmost basement uplift of the Cordillera Frontal. Integrating balanced structuralcross-sections with previou...
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