Surface treatment of spherical pin

Diplomová práce vypracovaná v rámci magisterského navazujícího studia oboru M2I – K analyzuje možné způsoby povrchové ochrany kulového čepu a tím zvýšení jeho korozní odolnosti. Kulový čep je montovaný do několika druhů podvozkových komponentů, např. kloubů, ramen apod. Současný stav je pro výrobce nevyhovující, nedostačující korozní ochrana zvyšuje počet reklamací a to se může odrazit na množství budoucích zakázek. Vhodnou povrchovou úpravou se má docílit vyšší korozní odolnosti při zachování funkčních vlastností používaných čepů.Diploma thesis is worked-up as a part of master’s studies of engineering technology M2I – K, analyzing the possible methods of surface treatment of spherical pin, that increase its corrosion resistance. Spherical pin is mounted into several types of chassis components such as joints, control arms, etc. The current situation is inconvenient for manufacturers, insufficient corrosion protection increases the number of complaints and this may be reflected in the number of future orders. Via of suitable surface treatment is to achieve a higher corrosion resistance while maintaining the functional properties of pins used.

Interaction of steel tank structure with liquid during seismic event

Sestavení metodou konečných prvků prostorového výpočtového modelu konstrukce nádrže s kapalinou s využitím programového systému ANSYS. Řešení vlastního kmitání nádrže s i bez účinků kapaliny. Aplikace Eulerova a Lagrangeova postupu při modelování kapaliny. Provedení srovnání. Řešení seizmické odezvy s využitím spekter odezvy. Posouzení nádrže v souladu s EC3 a EC8.Construction of structural computational model of the tank with fluid using program package ANSYS based on the Finite Element Method. Solve eigen-vibration of the tank with or without effects of fluid. Application of Euler and Lagrange method for modeling fluid. Solve seismic response using response spectra. Verify of the tank in accordance to EC 3 and EC8.

Evolution of audio commentary in sports computer games since 1998

This diploma thesis are describing the evolution of audio commentary in sports computer games since 1998. As the subject for the research was selected the FIFA game series, currently the best-selling game of virtual sports category. The objective of the analysis is to find out under which circumstances could this game includes the Czech version of audio commentary. Structurally this diploma thesis is divided into theoretical and research part. The first part describes the theoretical aspects of the researched issue. Describes the evolution in the video game industry from its beginnings to the present time, including the phenomenon of the eSports that is described in the second chapter. The theoretical part concludes with an analysis of methods, elements and specifics, for commentating of a sporting events. At the beginning of the research, this analysis is confronted with the specifics of the word algorithm for audio commentary used in the FIFA game series. Final SWOT analysis describe evaluation of the current state of evolution in the video game industry with the focus on the subject of this diploma thesis, audio commentary in the FIFA game series and possible return of the Czech version of audio commentary into the game. Keywords Commentating, FIFA, pc games, videogames, word algortihm,...Diplomová práce monitoruje vývoj a postavení audio komentáře ve sportovních počítačových hrách od roku 1998. Předmětem výzkumu byla vybrána herní série FIFA, aktuálně nejprodávanější hra virtuálního sportu a úvaha, za jakých podmínek by se do této herní série mohla vrátit česká verze audio komentáře. Diplomová práce se skládá ze dvou částí, teoretické a výzkumné. První část vymezuje teoretické předpoklady zkoumané problematiky, popisuje evoluci videoherního průmyslu od jeho počátků až po současnou dobu, kdy se do své fáze vyspělosti dostává odvětví eSports, jemuž je věnována druhá kapitola. Teoretickou část uzavírá rozbor metod, prvků a specifik, platných pro komentování sportovních událostí. V úvodu výzkumu je tento rozbor podroben konfrontaci se specifiky namlouvání algoritmu slov pro audio komentář použitý v herní sérii FIFA. Závěrečná SWOT analýza poskytne zhodnocení aktuálního stavu evoluce video herního průmyslu s přihlédnutím na téma diplomové práce, audio komentář v herní sérii FIFA a možný návrat české mutace. Klíčová slova Komentování, FIFA, počítačové hry, videohry, algoritmus slov, eSports, sport Název práce Vývoj a postavení audio komentáře ve sportovních počítačových hrách od roku 1998 do současnostiDepartment of JournalismKatedra žurnalistikyFakulta sociálních vědFaculty of Social Science

Could incommensurability in sulfosalts be more common than thought? the case of meneghinite, CuPb13Sb7S24

The structure of meneghinite (CuPb13Sb7S24), from the Bottino mine in the Apuan Alps (Italy), has been solved and refined as an incommensurate structure in four-dimensional superspace. The structure is orthorhombic, superspace group Pnma(0β0)00s, cell parameters a = 24.0549 (3), b = 4.1291 (6), c = 11.3361 (16) Ã\u85, modulation vector q = 0.5433 (4)bâ\u88\u97. The structure was refined from 6604 reflections to a final R = 0.0479. The model includes modulation of both atomic positions and displacement parameters, as well as occupational waves. The driving forces stabilizing the modulated structure of meneghinite are linked to the occupation modulation of Cu and some of the Pb atoms. As a consequence of the Cu/[] and Pb/Sb modulations, three-to sevenfold coordinations of the M cations (Pb/Sb) occur in different parts of the structure. The almost bimodal distribution of the occupation of Cu/[] and Pb/Sb at M5 conforms with the coupled substitution Sb3+ + [] â\u86\u92 Pb2+ + Cu+, thus corroborating the hypothesis deduced previously for the incorporation of copper in the meneghinite structure. The very small departure (~0.54 versus 0.50) from the commensurate value of the modulation raises the question of whether other sulfosalts considered superstructures have been properly described, and, in this light, if incommensurate modulation in sulfosalts could be much more common than thought.The crystal structure of the mineral meneghinite, CuPb13Sb7S24, has been solved and refined as an incommensurate structure from X-ray single-crystal diffraction data in four-dimensional superspace. The very small departure from the commensurate value of the modulation raises the question of whether incommensurability in sulfosalts could be much more frequent than previously thought

Giftgrubeite, CaMn2Ca2(AsO4)2(AsO3OH)2·4H2O, a new member of the hureaulite group from Sainte-Marie-aux-Mines, Haut-Rhin Department, Vosges, France

Giftgrubeite, ideally CaMn2Ca2(AsO4)2(AsO3OH)2·4H2O, is a new mineral occurring at the Giftgrube Mine, St Jacques vein, Rauenthal, Sainte-Marie-aux-Mines, Haut-Rhin Department, Grand Est, France and named after the type-locality. Giftgrubeite is mostly associated with Mn-bearing calcite, native arsenic, löllingite, and picropharmacolite. It is a recent secondary mineral, formed by alteration of the arsenical vein minerals after mining. Giftgrubeite occurs in colorless, rarely pearl white to pale yellow rosettes of brittle tabular crystals flattened on {1 0 0} and up to 0.2 mm in size. Hardness (Mohs) is 3 ½, Dmeas is 3.23(2) g·cm-3, Dcalc is 3.24 g·cm-3. The new mineral is biaxial negative without pleochroism. Measured 2V angle is ~72° and calculated 2V angle is 75.1°; the refractive indices measured in white light are: α = 1.630(2), β= 1.640(2) and γ = 1.646(2). The most prominent Raman bands are at 902, 885, 864, 851, 824, 797 and 759 cm-1. The empirical chemical formula is (Ca3.04Mn1.30Mg0.38Fe0.28)Σ5.00(AsO4)1.99(AsO3OH)2·4H2O. Giftgrubeite is monoclinic, C2/c, Z = 4, with a = 18.495(7) Å, b = 9.475(4) Å, c = 9.986(4) Å, β = 96.79(3)° and V = 1737.7(12) Å3. The six strongest lines in the X-ray powder diffraction pattern are [d in Å (I)(hkl)]: 3.33 (100)(-2 2 2), 3.18 (80)(2 2 2), 2.414 (60)(7 1 1), 4.80 (50)(-3 1 1), 4.65 (50)(-2 0 2) and 3.05 (50)(1 1 3). The structure of giftgrubeite was solved from the crystal retrieved from the type specimen by the charge-flipping algorithm. Giftgrubeite contains a well-known structure type parent to the hureaulite group of minerals, which is based upon an octahedral edge-sharing pentamers of M2+-polyhedra; pentamers linked into a loose framework by sharing corners with octahedra in adjacent pentamers and further by AsO4 and AsO3OH tetrahedra. There are three distinct octahedral sites: M1, M2, and M3. In the case of giftgrubeite, two of the M sites were found to be fully occupied by Ca; namely M1 and M3. The M2 site was then found to contain Mg besides dominant Mn. Considering the refined site occupancies, the structural formula for giftgrubeite is Ca3Mn1.30Mg0.70(AsO4)2(AsO3OH)2(H2O)4. Giftgrubeite is an ordered intermediate member between villyaellenite, MnMn2Ca2(AsO3OH)2(AsO4)2·4H2O and sainfeldite, CaCa2Ca2(AsO4)2(AsO3OH)2·4H2O