"Budoucnost ukáže, jak současná generace uplatnila své schopnosti a podřídila své bezprostřední zájmy tomu, aby vedle zabezpečení svých vlastních životních potřeb připravila příští generaci stůl k hostině vzdělanosti tak, aby se budoucí historik mohl vyslovit o současné zakládající obcí Slezské univerzity a všech jejích příznivcích s uznáním o jejich myšlení a skuctích." and Rudolf Žáček.
The article presents the characteristic features of the worldwide wolf spider family (Lycosidae) and describes how its study has affected Czech arachnology, which takes credit for resolving several issues. Among the 38 families of spiders living in the Czech Republic, wolf spiders are remarkable for their ecology. Wolf spider vital signs are so prominent that every observer inevitably notices their constant movement. In addition to history of the research into the wolf spider family, some faunistic issues are also presented. and Jan Buchar.
The second part of this article on the wolf spider family (Lycosidae) and the importance of Czech arachnologists in its study deals with various questions involving the taxonomy, zoogeography, ecology, bioindications and protection of these spiders, as well as their etology and cytogenetics. and Jan Buchar.
To tackle the difficulty in tuning the parameters of sliding mode differentiator (SMD), an improved adaptive notch filter based real-time parameter tuning scheme (denoted as ANF-SMD) is presented. Specifically, the integral feedback of the system output errors is introduced in constructing the cost function for the adaptive notch filter so as to estimate the real-time amplitude and frequency of given inputs. Then, upon the deterministic formula between the parameters of the SMD and the input signals, the parameters of the SMD can be adjusted adaptively as inputs vary. Simulation results show that the proposed ANF-SMD scheme performs well in signal filtering and differentiation estimation. The effectiveness of the proposed ANF-SMD is further experimentally verified on the pressure signal processing for the altitude ground test facility.
Stability conditions in a wider surrounding of the rock castle Drábské Světničky (Drábské Rooms) near the town of Mnichovo Hradiště were investigated. The area which has been intensively disturbed by large old as well as present slope movements is located in the north-western part of Příhrazy Platform. Solid, thick bedded sandstones, well resistant to weathering, are lying on claystones apt to plastic deformations. Marginal sandstone blocks separate, move down on the slope and sink into the plastic bedrock. As a result, block fields with many crevasses develop. In rock walls that separate individual blocks, rockfalls originate and central, as well as lower parts of the slopes develop large landslides. A zone comprising up to 400 m wide rim of the high and exposed platform has been subject to a process of loosening. A local group of tower-like sandstone blocks was used in the 15th century to build a small rock castle called Drábské Světničky. An extensive landslide that destroyed a substantial part of the village of Dneboh in June 1926, reached in its separating zone up to the toe of marginal rock towers belonging to the complex of Drábské Sv ě tni č ky with the result of local movement activation. Marginal zones of the flat land behind display fresh linear, as well as oval depressions and sinks. Fissure and pseudocarst caves develop. Present activity of the movements has been evidenced by dilatometric measurements on two selected rock objects where movement rates reached 1 to 2 mm per year in average., Jan Rybář, Josef Stemberk and Filip Hartvich., and Obsahuje bibliografické odkazy