The article considers the writings of the sculptor Andreas Schweigl (1735-1812) and the painters Ignaz Chambrez (1758-1842) and Josef Heřman Agapit Gallaš (1756-1840). Around the year 1800, these three Moravian artists recorded their thoughts and insights in a number of texts that variously combined the traditional literary genre of artist’s biography with artistic topography, art criticism and a historical interpretation of early Moravian art and culture. Since all three were in some way connected with the new system of art education, the aim of this study is to examine whether and in what way standardized education affected not only their professional careers, but also their thinking. For all three, that thinking was rooted in a historical interpretation of the early art and culture of Moravia. All three discuss the function of art, artistic ideals, and to some extent the concept of the creative genius, as well as reflecting, directly or indirectly, on the theme of decadence as one stage in the cyclical view of history, in line with the paradigm of the age. The author sets out to compare their texts and in general terms show 1) how artists themselves viewed the importance of art education at the end of the 18 century; 2) how they responded to the changing role of the artist in society; and 3) how they defined artistic ideals and the artist’s social purpose. It is the wider implications of these changes in the artist’s social status, and in the function of art in Moravia and Central Europe generally, that form the primary focus of this study., Pavel Suchánek., and Obsahuje bibliografické odkazy
Two elementary processes - unaxial compression and creep - were chosen to demonstrate some structural effects in the mechanical behaviour of particulate materials. Six aspects of it - density, grain crushing, angularity, water effect, diffusion and garlandlike creep - were dealt with using firstly theoretical hypotheses and verifying them afterwards by laboratory experiments. Granular clay, silica gel, sand and oat flakes were experimented with. It was shown that the effect of density can be masked by other factors, granulometrical curve may change - due to grain crushing - its shape from Gauss-Laplace to concave form, angularity may radically modify the stress-strain curves, water may initiate hydrocollapses, dry granular material if loaded may be subjected to diffusion and creep may acquire a hybrid form (mixture of diffusion and garlandlike varieties). Various species of nonstandard behaviour have been described. and Obsahuje seznam literatury
Predicting surface deformations caused by underground mining is an issue of significance both for the safety of overlaying facilities and for economic purposes. There are many different models for predicting the impact of underground mining on the land surface. One of them is the Knothe model commonly used in Poland and in the world. The paper presents two methods of estimating Knothe model parameters uncertainty. The parallel application of two methods enables the mutual verification of the results obtained and the identification of the potential errors and their sources in the case of any discrepancies. The first method is based on the so-called law of propagation of uncertainty, which in essence is the approximation based on the first-order Taylor series expansion. The second presented method is based on the Monte Carlo simulation.
This article describes statistical evaluation of the computational model for precipitation forecast and proposes a method for uncertainty modelling of rainfall-runoff models in the Floreon+ system based on this evaluation. The Monte-Carlo simulation method is used for estimating possible river discharge and provides several confidence intervals that can support the decisions in operational disaster management. Experiments with other parameters of the model and their influence on final river discharge are also discussed.
The Weinstein transform satisfies some uncertainty principles similar to the Euclidean Fourier transform. A generalization and a variant of Cowling-Price theorem, Miyachi's theorem, Beurling's theorem, and Donoho-Stark's uncertainty principle are obtained for the Weinstein transform.