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Perform analysis of the technological services in medium-sized enterprises of agricultural primary production and its design optimization.
BRYCH, Jiří
Abstrakt This paper solves the analysis of the technological transportation in a medium-sized enterprise, with its subsequent design optimization. The aim is to analyze existing traffic and then propose appropriate measures to streamline the labor-saving technological services in the selected primary agricultural enterprise with selected comparative parameters. This paper will attempt to answer questions. How to reduce transport costs in agriculture? What and how to properly transport the material in agriculture? The theoretical part contains the characteristics of transportation technology on the farm, focusing on the removal forage. Describes suitable transport means for removing material from the harvester and the chosen parameters for the comparative analysis of the technological transportation. The basis for the practical part of the surveillance and measurement of traffic operations on the farm and ZEMPO-VOS Strunkovice nad Blanicí. And based on selected indicators were calculated values, which were compared with the technical and technological norms for agricultural production of the Czech Republic. The last part of the thesis deals with the optimization of the removal of maize silage for cattle forage harvesters from the silage trough. Are described herein suitable means of transport options within the company, including calculations and comparison of selected indicators of the actual removal of silage maize . The conclusion of this study imply the need to increase the removal of corn silage size transport´s resources, compared to current technology.
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Alternative utilising of agricultaral land resourses in light of economic also uneconomic aspects
STANĚK, Jaroslav
The development of countryside and agriculture is seen especially in competitive and multifunctional agriculture with an emphasis on improving environmental quality, which will underpin long-term economic growth and provide sufficient conditions for rural development in services and other activities. The main emphasis of multifunctional agriculture is therefore put on investment in agriculture, including support for young farmers and the processing of agricultural production. One of the urgent problems of contemporary agriculture is the effective exploitation of agricultural land resources, when on the one side the production (economic) function will be filled to the maximum extent as well as environmental and security features on the other hand. The thesis is focused on this issue, on this aspect has been designed and calculated variations of the use of land block naturally in the context of possible scenarios of related landscape.
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Designing of a hot water heater
Zdražil, Pavel ; Frömel, Zdeněk (referee) ; Baláš, Marek (advisor)
This thesis processes design of hot water heater. It was done thermal, hydraulic and basic strength calculations in the work and from their outcomes was set up a design of heat exchanger, which was afterwards modelled and drawn. In the beginning of the work is reader introduced to heat exchanger types and characteristics and also to its thermal processes. Then the work continues with thermal design of the heat exchanger, where the most important outcome is heat transfer surface with other geometric parameters, followed by hydraulic design, where pressure loss on water side was calculated. The calculations are finished up by basic strength design, calculating thickness of shell and tube walls. The thesis is ended with evaluation of computed design and description of its basic features.
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Calculation of difraction aberration using differential algebra
Radlička, Tomáš
The resolution in light microscopy is limited mainly by the wave length of light. Although the wave length of the electron is several orders Of magnitude smaller than that of light, the wave properties of the electron limit the resolution of scanning electron microscopes as well. It is described by the diffraction on the limiting aperture. While the effect of the diffraction can be reduced by increasing the limiting aperture size, it affects the resolution by increased geometrical and chromatic aberrations, that are more critical in the electron optics than in the light optics. These opposite trends cause that the best resolution is given by an aperture size that balances the effect of the diffraction with the effect of geometric and chromatic aberrations - an optimal aperture.
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The body culture phenomenon in czech special interests magazines
Strouhalová, Iva ; Jirák, Jan (advisor) ; Macková, Veronika (referee)
Body culture represents a typical example of sociological phenomenon which has been a subject of mass commercialization for nearly several decades. At certain stage of this process, new magazines of special interest were been created with focus on a specific concept of the physical culture. Their content coverage ranged from fitness, strength training, bodybuilding, health lifestyle, to physical exercise in general. The diploma thesis "The body culture phenomenon in Czech special interests magazines" aims to survey an origin and evolution of such magazines in the Czech Republic and tries to shed light on how physical culture represented by increasing popularity of fitness activities among general public had been reflected in this segment of media production. While analyzing three Czech magazines, Svět kulturistiky, FITNESS and MUSCLE&FITNESS, the thesis examines how the mass popularization and commercialization of physical culture have affected a content structure of the magazines. The research focuses on selection of topics, target audience, use of language and graphic design. Qualitative content analysis will be used to study how the physical culture phenomenon is represented in selected magazines. The thesis also gives a brief insight into the history of bodybuilding and fitness movement in the...
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The effect of σ-phase formation on long-term durability of SUPER 304H steel
Horváth, J. ; Král, Petr ; Janovec, J. ; Sklenička, Václav
This work presents results of the analysis of phases formed in a SUPER 304H steel during a medium-term static isothermal ageing (675 degrees C/15000 h). The investigations of the precipitates were especially focused on the occurrence of sigma-phase because its formation leads to the serious embrittlement. \nThe evaluation and distribution of brittle sigma-phase were determined on macroscopic level by using light microscopy/colour etching. The microstructure was also investigated on microscopic level by scanning electron microscopes Tescan Lyra 3 and JEOL JSM 5410 equipped by electron backscatter diffraction unit and by transmission electron microscope Jeol 2100F. This work also investigates the effect of sigma-phase formation on the impact strength of an aged state of SUPER 304H steel. For comparison reasons the microstructure and the mechanical properties of the initial as-received) state were also investigated. It was found that the formation of brittle sigma-phase in the aged and therefore degraded microstructure led to the significant decrease of the impact strength. The influence of brittle sigma-phase on long-term durability of the degraded steel regarding its insufficient impact strength is discussed.
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Relativistic Theory of Electron Transport in Magnetic Layers
Sýkora, Rudolf ; Turek, Ilja (advisor) ; Šob, Mojmír (referee) ; Drchal, Václav (referee)
Title: Relativistic Theory of Electron Transport in Magnetic Layers Author: Rudolf Sýkora Department / Institute: Institude of Theoretical Physics Supervisor of the doctoral thesis: doc. RNDr. Ilja Turek, DrSc., Department of Condensed Matter Physics Abstract: We review the density-functional theory (DFT) in detail using the Levy Lieb ap- proach. The Kohn Sham scheme is discussed, starting from the simplest spinless non- relativistic case, then including spin and considering potential spin magnetism, and finally deriv- ing the full Kohn Sham Dirac relativistic scheme. The Linear Muffin-Tin Orbital (LMTO) method for electronic-structure calculation is presented, together with mentioning the necessary changes to include the spin-orbit (SO) interaction effects to an otherwise scalar-relativistic (SR) theory. Derivation of an electronic-conductance formula for a layered system is given, based on the Landauer scattering picture and using simple non-equilibrium Green functions. The formal- ism is applied to layered metallic systems of light elements Co, Ni, Cu elements, and to layered systems with a tunnelling barrier, Fe/MgO/Ag and Fe/GaAs/Ag. The effects of the SO interac- tion on the Giant Magnetoresistance (GMR) ratio and/or the Tunnelling Anisotropy Magnetore- sistance (TAMR) for these systems are discussed....
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Protection of Indigenous Peoples' Rights under Contemporary International Law
Rudenko, Slavomír ; Šturma, Pavel (advisor) ; Hýbnerová, Stanislava (referee) ; Jílek, Dalibor (referee)
Slavomir Rudenko: Protection of Indigenous Peoples' Rights under Contemporary International Law (Dissertation Thesis). Law Faculty of Charles University, Prague, 2012 Supervisor: prof. JUDr. Pavel Šturma, DrSc. Key words: indigenous peoples; minorities; colonialism; native; international customary law; protection of human rights; collective rights; right to self-determination; non-discrimination; cultural integrity; right to lands and natural resources; right to participation; free, prior and informed consent; monitoring mechanisms, international complaint procedures; implementation of obligations; national jurisdiction; pluriculturalism The dissertation thesis addresses the issues of the status of indigenous peoples as reflected by contemporary international law. In this scope, it aspires to present the characteristic features of the respective international order, to draw an analysis of both its universal and regional instruments and identify the subject matter in the light of the ongoing academic debate and the most current practice of international law. Against the background of historical processes of degradation, suppression, denial of human rights and discrimination of indigenous peoples it is the author's aim to highlight the rising interest of the international community, taking shape over...
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