Results 71 to 80 of about 12,496 (186)
Thermoelastoplastic oscillator with Prandtl-Ishlinskii operator
Mathematics in EngineeringWe study a mathematical model of mass points longitudinally oscillating between thermoelastoplastic springs. It is derived as a discrete version of a continuous model of longitudinal oscillations of a one-dimensional object.
Jana Kopfová, Petra Nábělková
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Categorization of Floods in the Opava River Basine [PDF]
Geografie, 2015 The paper summarizes our knowledge of the flood regime of the Opava river basin between 1960 and 2010. Emphasis is placed on the categorization of the individual components of the causes of flooding and the development of floods. Analogies were sought among floods based on their causal symptoms and the characteristics of the runoff response. Summer and
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, 2008 We consider the Burgers-type system studied by Foursov, w_t &=& w_{xx} + 8 w w_x + (2-4\alpha)z z_x, z_t &=& (1-2\alpha)z_{xx} - 4\alpha z w_x + (4-8\alpha)w z_x - (4+8\alpha)w^2 z + (-2+4\alpha)z^3, (*) for which no recursion operator or master symmetry
A. Sergyeyev +31 more
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Gauge-natural field theories and Noether Theorems: canonical covariant conserved currents [PDF]
, 2005 Recently we found that canonical gauge-natural superpotentials are obtained as global sections of the {\em reduced} $(n-2)$-degree and $(2s-1)$-order quotient sheaf on the fibered manifold $\bY_{\zet} \times_{\bX} \mathfrak{K}$, where $\mathfrak{K}$ is ...
Palese, Marcella, Winterroth, Ekkehart
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Recursion operator for stationary Nizhnik--Veselov--Novikov equation
, 2002 We present a new general construction of recursion operator from zero curvature representation. Using it, we find a recursion operator for the stationary Nizhnik--Veselov--Novikov equation and present a few low order symmetries generated with the help of
A Sergyeyev +16 more
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Quantum-Gravity Stochastic Effects on the de Sitter Event Horizon
Entropy, 2020 The stochastic character of the cosmological constant arising from the non-linear quantum-vacuum Bohm interaction in the framework of the manifestly-covariant theory of quantum gravity (CQG theory) is pointed out.
Claudio Cremaschini, Massimo Tessarotto
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Vegetation on Fluvial Landforms along Near-Natural Reaches of the Opava, Černá Opava and Branná Rivers Ten Years after Extreme Flood Disturbance [PDF]
Geografie, 2011 Riparian vegetation patterns and fluvial geomorphic forms and processes are very closely related environmental phenomena. This paper examines riparian vegetation patterns in relation to fluvial geomorphic landforms in five near-natural river reaches within ten years of a catastrophic flood.
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Resonant switch model of twin peak HF QPOs applied to the atoll source 4U 1636-53
, 2012 We present a Resonant Switch (RS) model of twin peak high-frequency quasi-periodic oscillations (HF QPOs), assuming switch of twin oscillations at a resonant point, where frequencies of the upper and lower oscillations $\nu_U$ and $\nu_L$ become to be ...
Kotrlova, Andrea +2 more
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Business plan development in an international project aimed at creating a fictitious hotel
Studia Periegetica, 2023 The article describes the process of developing a business plan for a fictitious hotel as part of a simulation exercise involving five partners participating in an international project.
Pavlína Pellešová , Krystyna Heinz
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The State of Strategic Marketing Application in Czech Small and Medium-Sized Enterprises
Scientific Annals of Economics and Business, 2019 The article deals with the issue of using strategic marketing in the business of small and medium-sized enterprises. The main objective of this paper is to theoretically define the principles of strategic marketing and then practically analyse the level ...
Kateřina Matušínská, Michal Stoklasa
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