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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Microstructure and mechanical properties of the potentially biodegradable ternary system Zn-Mg0. 8-Ca0.2
 Pinc, Jan ; Čapek, Jaroslav ; Kubásek, J. ; Veřtát, Petr ; Hosová, K.
Zinc and zinc alloys exhibit suitable corrosion properties for biodegradable implants. Insufficient mechanical properties (for some applications) or low biocompatible Zn2+ concentrations can be modified by the alloying by essential elements like magnesium, calcium or strontium. The alloying elements also enhance the biocompatibility of zinc due to a decrease of Zn2+ release which could be toxic in a concentration exceeding 100 µM. In this study, the microstructure and hardness of a potentially biodegradable alloy ZnMg0.8Ca0.2 were observed in relation to different cooling rates. It was found that zinc dendrites, Mg2Zn11 (MgZn2) and CaZn13 phases occur in the material structure. The micro-hardness measurements revealed constant hardness of the particular phases, however, the macro-harness slightly decreased with the decreasing cooling rate due to changes in phase sizes and distribution.
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Business and cultural specifics of Pakistan
 Hošová, Kateřina ; Müllerová, Františka (advisor) ; Štěrba, Vlastimil (referee)
The purpose of the thesis is analysis of cultural and business conditions in modern Pakistan and evaluation of aspects that led to transition into present state. Simultaneously it includes concrete application of cultural specifics on business relations. First chapter includes general geographical, demographical and economical specifications of Pakistan. Second chapter undertakes analysis of cultural attributes, including the theory of national cultural dimensions by Geert Hofstede. In third chapter is more deeply specified the influence of culture on business meeting and the working protocol, there are specified particular fragments of business meeting and the behaviour that can be expected by pakistani partners.
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1 Hošová, Kateřina
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