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Heterogeneous bipolar membrane and the influence of composition on its properties
Kvasničková, Lucie ; Válek, Robert (referee) ; Neděla, David (advisor)
This work is focused on the preparation of heterogeneous bipolar membranes and studies the influence of different composition on mechanical and physical properties. The main feature of this approach is optimalization of composition following gained data. Theoretical part contains new piece of knowledge in the field of heterogeneous bipolar membranes. Experimental part engages preparation of bipolar ion-exchange membranes on one face cation-selective and on the other one anion-selective. In this case are used variant types of polyethylene.
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Obmedzovanie škodlivej spotreby v Európskej únii pomocou daňových nástrojov
Černáček, Kristián
The diploma thesis is focused on consumption taxes in the European Union, their changes and impacts on limiting harmful consumption. The author of the diploma thesis examines the level and change of consumption tax rates in EU countries, the development of average and median wages, prices of goods of harmful consumption and the costs caused by harmful consumption. The main goal of the diploma thesis is to find out whether it is possible to effectively reduce consumption by increasing tax rates. The secondary goal is to define the amount of consumption taxes in the EU, to find out prices and wages. In the Czech Repub-lic, find out the level of consumption, calculate the elasticity of demand and compare the results with the results of a questionnaire survey. Based on the findings, evaluate the effectiveness of the tax policy and propose measures.
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Forex interventions of CNB in front of the door to Eurozone
Kadlec, Tomáš
Kadlec, T. Forex interventions of CNF in front of the door to Eurozone. Di-ploma thesis. Brno: Mendel University, 2015. This thesis study the foreign exchange intervention of Czech National Bank, launched in November 2013. Under the circumstances have been chosen to use the Marshall-Lerner condition which finds the economy suitable for cur-rency devaluation or not. For reach this goal have been calculated regression analysis with two alternative results for calculating the condition. In the first alternative, full Marshall-Lerner equation, could not be satisfaction of condi-tion proven, but nor was dissatisfaction. In the second one, where was import of Czech Republic calculated with zero value according to regression analysis result, was the condition satisfied. Results have been compared with numbers from United Kingdom and found opposed. In comparison to Slovak Republic was found Czech development of macroeconomic indicators better.
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Modelling ethanol production in simultaneous equations model of global food demand and supply
Kozák, Miroslav ; Janda, Karel (advisor) ; Macháček, Vít (referee)
This thesis conducts an econometric analysis for the relationship between food price and ethanol production. A system of simultaneous equation models for the demand and supply for food are estimated, paying attention to the effect of ethanol production. The two-stage and three-stage least-squares estimation methods are adopted, which explicitly account for endogeneity in the system. Using annual data from 1981 to 2020, it is found that the ethanol production has little economic impact on food price. This may be closely related with inelastic demand and supply with respect to price that have been found in this study, where exogenous shocks such as an increase of ethanol production may have small effects on price. JEL Classification C12, C13, D12 Keywords Ethanol, Endogeneity, Food Price, Elasticity, Si- multaneous Equations Model Title Modelling ethanol production in simultaneous equations model of global food demand and sup- ply Author's e-mail kozakmiroslav92@gmail.com Supervisor's e-mail karel-janda@seznam.cz
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Analysis of meat demand in the Czech Republic
Dlasková, Karolína ; Ščasný, Milan (advisor) ; Polák, Petr (referee)
Meat and meat products form the highest share of Czech household expenditures for food. This thesis offers a complex view on the Czech meat market and studies in detail the determinants of meat demand. A review of the most frequently used demand models is included, from which the least squares log-log model is used for empirical analysis. The core of this thesis is the estimation of price and income elasticities of demand for various types of meat based on statistical data of household accounts from the years 2000 - 2012. The estimates are, with the exception of the price elasticity for beef, which equals 0.13, consistent with previous studies. Within the examined period, households manifest unitary income elasticity and own price elasticity of demand for meat equal to -1.2. The temporal evolution of elasticities varies for different types of meat. Important socio-demographical aspects influencing the demand for meat, such as age, education, whether the household is led by a female, and others, are also analysed.
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Viscous and elastic properties of soft tissue "in situ"
Moravcová, Kamila ; Šifta, Petr (advisor) ; Bittner, Václav (referee)
Title: Viscousand elastic properties of soft tissue"in situ" Goals and methods: The aim of this thesis is to measure the viscoelastic properties of human soleus muscle and Achilles tendonin vivo and post mortem in situ. It is a pilot study that uses myotonometry as the method of measurement. Based on the response of connective tissues on deformation made by tip of myotonometer, resp. its viscoelastic properties, curves in graphsare created. Three main described parameters of thecurveare steepness, deflection and its surface area. Main goal of the experiment is to compare properties of different types of tissue and their potential differences while denervated or innervated. Results of this study may help with better understanding of the soft tissues behavior in response to manual therapeutic contact. The study also describes the differences between in vivo and post mortem tissue properties that may be help further studies which use post mortem tissues to predict in vivo behavior. Results: Soft tissues in vivo have higher viscosity. In comparison, post mortem tissues have significantly higher stiffness and energy dissipation than in vivo. Elasticproperties of denervated soft tissue manifest with approx. 7 secondsdelay. Viscoelastic properties of muscle tissueshow changes depending on deeper...
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Efficacy of post-isometric relaxation technique on muscle tissue and its viscoelastic properties after physical activity
Hloušková, Zuzana ; Šifta, Petr (advisor) ; Malá, Jitka (referee)
Title: Efficacy of post - isometric relaxation technique on muscle tissue and its viscoelastic properties after physical activity. Objective: This study is a pilot analytical and comparative study. The first aim of this thesis was evaluation of the effect of post-isometric relaxation technique on properties of muscle tissue after physical activity. The second aim of this thesis is to present a literature review regarding this topic using literature available. Methods: This study took place in the laboratory of kinesiology at UK FTVS. Six participants were measured prior to Wingate test, after Wingate test and after post- isometric relaxation or rest. Experimental lower extremity was applied post-isometric relaxation technique and the control lower extremity was not. Muscle tonus of the soleus muscle was measured with myotonometric device developed by Šifta. The final data were processed in the special software in Matlab and the obtained hysteresis curves were used for results analysis. Results: This study had three hypotheses and none of them was confirmed during the measuremets. The first hypothesis pressumed that muscle tonus will increase after the Wingate test, but it was not confirmed and thus further measurements were strongly influenced in the sense that post-isometric relaxation was not...
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Mathematical analysis and computer simulations of deformation of nonlinear elastic bodies in the small strain range
Kulvait, Vojtěch ; Málek, Josef (advisor)
Title: Mathematical analysis and computer simulations of deformation of nonlinear elastic bodies in the small strain range. Author: Vojtěch Kulvait Department: Mathematical Institute of Charles University Supervisor: prof. RNDr. Josef Málek, CSc., Dsc. Abstract: Implicit constitutive theory provides a suitable theoretical framework for elastic materials that exhibit a nonlinear relationship between strain and stress in the range of small strains. We study a class of power-law models, where the nonlinear dependence of strain on the deviatoric part of the stress tensor and its trace are mutually separated. We show that these power-law models are capable to describe the response of a wide variety of beta phase titanium alloys in the small strain range and that these models fit available experimental data exceedingly well. We also develop a mathematical theory regarding the well-posedness of boundary value problems for the considered class of power-law solids. In particular, we prove the existence of weak solutions for power law exponents in the range (1, ∞). Finally, we perform computer simulations for these problems in the anti-plane stress setting focusing on the V-notch type geometry. We study the dependence of solutions on the values of power law exponents and on the V-notch opening angle. We achieve...
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