National Repository of Grey Literature 60 records found  beginprevious51 - 60  jump to record: Search took 0.01 seconds. 
Modifikovaná nehladká Newtonova metoda: numerický příklad
Byczanski, Petr ; Sysala, Stanislav
The modified semismooth Newton method is introduced in this contribution. The modification is based on a ``damping" in each Newton iteration. The damping coefficient are computed by a minimisation problem. The method is described on an abstract problem with the main convergence results. Then it is applied to solving an elasto-plastic problem with hardening and illustrated on a numerical example.
Hold Prof. Maquoi
Škaloud, Miroslav
A few reminiscences about four and half decades of fruitful cooperation between Liège and Prague, paying a special tribute to thirty-seven years of very good collaboration between the author and Prof. René Maquoi in various domains of professional activities.
Fracture toughness of quasi-brittle specimens using three-point bending test: Correction with respect to notch width
Frantík, P. ; Keršner, Z. ; Klusák, Jan ; Seitl, Stanislav
The paper introduce the influence of the starting notch width on a crack growth in three-point bending specimens that are the most frequently used specimens for fracture laboratory testing, especially of quasi-brittle cement-based composites. There are analyses of three geometrically different configurations of the specimens. It is shown that the values of fracture toughness obtained from the tests of specimens with larger widths of the starting notch can be overestimated. Correction functions for selected testing configurations are presented.
Jednoduchá metoda navrhování stěn ocelových mostních nosníků s nízkými výrobními náklady - jeden z nových výsledků pražského výzkumu dýchání stěn
Škaloud, Miroslav ; Zörnerová, Marie
The main impact of the latest stage of the Prague research on web breathing is the derivation of simple user-friendly formulae such as to make it possible completely to disregard the parasitic effect of the cumulative damage process generated by web breathing. Thereby the way is paved to the application of simple economic-fabrication structural systems in bridge construction, consisting for example of singly-symmetric steel beams made composite with a concrete slab. Such systems substantially reduce the amount of labour needed, and hence the fabrication costs, and that is why they may in numerous cases prove to be advantageous and preferable for small and medium-span bridge structures.
Biodegradation of TNT by .I.in vitro./I. cultivated plants: A model system for study of degradation processes
Nepovím, Aleš ; Hebner, A. ; Gert, A. ; Thomas, H. ; Vaněk, Tomáš
In vitro cultivated water plants - helophytes were used for removing of TNT from cultivation medium.
Impact of weathering on chemical and morphological changes in stabilized polymers
Pospíšil, Jan ; Pilař, Jan ; Billingham, N. C. ; Marek, Antonín ; Kruliš, Zdeněk ; Nešpůrek, Stanislav ; Habicher, W. D.
Photooxidation, considered as the principal component of natural and accelerated weathering, affects together with oxygen,oxidizing and acid atmospheric pollutants durability of stabilized polymers by changing their chemical and supramolecular structure and influencing efficiency of stabilizers. Effects of the harshness of accelerated photooxidation, negative influences of atmospheric pollutants, heterogeneity in polymer oxidation together with formation of concentration gradients in stabilizer consumption and spatial distribution of stabilizer sacrificial transformation products are outlined. The data give more information on processes accompanying testing of stabilizer polymers and help to minimize misleading influences from over-accelerated tests.
Chemical transformations of poly[methyl(phenyl)silylene] under weatherometer exposure
Meszároš, Oto ; Schmidt, Pavel ; Pospíšil, Jan ; Nešpůrek, Stanislav
Specific behavior of poly[methyl(phenyl)-silanediyl] upon photooxidation in Weathermeter ATLAS was monitored during FTIR spectroscopy. Photooxidation results in healing of Si-Si conjugation and formation of siloxane species.
Nábor, výběr, přijímaní zaměstnanců ve společnosti Mediaedge:cia
Kmoštincová, Lenka ; Seidlová, Eva (advisor) ; Kočí, Ondřej (referee)
Personální managemet, náborový a výběrový proces,zdroje pracovních sil, metody náboru, životopis, výběrový pohovor,osobnost uchazeče přijímání a adaptace, metodika, předmět a cíle diplomové práce, profil společnosti Mediaedge:cia, popis procesu ve společnosti, dotazníkové šetření, rozhovory s manažery, doporučení v náborovém a adaptačním procesu, přílohy, návrh inzerátu, návrh plakátu, návrh "příručka zaměstnance".

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