Browsing by Author "Škodová, Marcela"
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- ItemEffects of filler distribution on magnetorheological silicon-based composites(MDPI, 2019-01-01) Samal, Sneha; Škodová, Marcela; Blanco, IgnazioThe smart materials subclass of magnetorheological elastomer (MRE) composites is presented in this work, which aimed to investigate the influence of filler distribution on surface morphology. Iron particles with sizes ranging from 20 to 150 μm were incorporated into the elastomer matrix and a 30% volume fraction (V%) was chosen as the optimal quantity for the filler amount in the elastomer composite. The surface morphology of MRE composites was examined by 3D micro-computed tomography (μCT) and scanning electron microscopy (SEM) techniques. Isotropic and anisotropic distributions of the iron particles were estimated in the magnetorheological elastomer composites. The filler particle distribution at various heights of the MRE composites was examined. The isotropic distribution of filler particles was observed without any influence from the magnetic field during sample preparation. The anisotropic arrangement of iron fillers within the MRE composites was observed in the presence of a magnetic field during fabrication. It was shown that the linear arrangement of the iron particle chain induced magnetization within the composite. Simulation analysis was also performed to predict the particle distribution of magnetization in the MREs and make a comparison with the experimental observations.
- ItemMagneto-Rheological Elastomer Composites. A Review(MDPI, 2020-01-01) Samal, Sneha; Škodová, Marcela; Abate, Lorenzo; Blanco, IgnazioMagneto-rheological elastomer (MRE) composites belong to the category of smart materials whose mechanical properties can be governed by an external magnetic field. This behavior makes MRE composites largely used in the areas of vibration dampers and absorbers in mechanical systems. MRE composites are conventionally constituted by an elastomeric matrix with embedded filler particles. The aim of this review is to present the most outstanding advances on the rheological performances of MRE composites. Their distribution, arrangement, wettability within an elastomer matrix, and their contribution towards the performance of mechanical response when subjected to a magnetic field are evaluated. Particular attention is devoted to the understanding of their internal micro-structures, filler–filler adhesion, filler–matrix adhesion, and viscoelastic behavior of the MRE composite under static (valve), compressive (squeeze), and dynamic (shear) mode.
- ItemPrávní formy zdravotnických zařízení(2007-01-01) Škodová, Marcela
- ItemPrávní formy zdravotnických zařízení(Technická Univerzita v Liberci, 2007-01-01) Škodová, Marcela; Žižka, MiroslavThe aim of this thesis is to explore a suitable legal form of inpatient health care institution. At the beginning, health care institution is described in general, hospital is characterized and special features of the health care institution are defined. The second part is devoted to possible legal forms of health institutions divided into non-profit association and enterprise subjects, which are complemented with giving examples of their existence in trade register. The thesis is complemented with observations of diferent forms of health care institutions abroad. The evaluation of applicability of legal form for health care institution covers the development of hospitals after 1989 and above all the comparison of single forms in term of their financing. Indispensable political aspects are described as an adition. The Institute of Hand Surgery and Plastic Surgery in Vysoké nad Jizerou is described as an example of decision making in what form is suitable.