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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
211

Lanový drapák / Grab Dredger

Kubánek, Jan January 2009 (has links)
When soluting the contruction of a grab dredger we will deal with suitable solution with reference to its using and capacity, possibilites of its setting in low temperatures and incidental aplication of the exchangeable abrasion - resistant mouldings. There will be made a calculation of forces taking effect on a grab dredger and a check calculation of the chosen structural parts.
212

Inovace skládané klikové hřídele pro minibikové motory / Innovation of built-up crankshaft for minibike engines

Doležal, Lukáš January 2011 (has links)
The present diploma thesis deals with innovation of built-up crankshaft of Blata minibikes. Minibike is the type of a small two-stroke motorcycle equipped with an internal combustion engine of the volume 40 or 50 cm3. The machine is designed for racing circuits; not only for young riders but also for seniors. The innovation is in the design and verification of pressed connections in the imposition of major pins in the arms of the crankshaft. Pressed connections are designed on the basis of the analysis of force interaction on the crankshaft at maximum revolutions. The proposed solutions are verified by FEM calculations. Based on the results, the best option is selected. For the selected option, the impact of force interaction at maximum machine performance is studied. Finally, on the basis of these facts, designing, technological and economic analysis of feasibility of new production technology is carried out.
213

Hydrodynamická ložiska šestiválcového vznětového motoru / Plain Bearings of Six-cylinder CI Engine

Hruška, Miroslav January 2011 (has links)
This master’s thesis focuses on hydrodynamic plain bearing drivetrain in-line sixcylinder diesel tractor engine. In the first part is used as reported in contemporary bearing materials and design solutions bearing basins. Furthermore, given the general Reynolds equation of hydrodynamic lubrication. The main part of the thesis is devoted to creating a virtual model of the crank mechanism in MBS system ADAMS/Engine. Rigid crankshaft in this model is replaced by the flexible crankshaft, which is prepared in the FEM software ANSYS and then exported. The final section presents the results of simulations and their evaluation.
214

Píst zážehového přeplňovaného motoru 2.0L / Piston for SI Turbocharged Engine 2.0L

Kusyn, Petr January 2013 (has links)
This diploma thesis is focused on solve of design solutions for piston for turbocharged version of Honda K20A engine, especially on reduce of side force acting on piston. There are mentioned methods and on their basis also design solutions for piston to reduce this force. There is also included kinematic and dynamic analysis for each solution and as well their FEM analysis for testing the suitability of these solutions.
215

Stavěcí mechanismus štěrbiny kuželového drtiče / Slot adjusting mechanism of cone crusher

Huňka, Jan January 2015 (has links)
This master’s thesis deals with the obtuse-angled cone crushers especially about design of the individual parts of the adjustment mechanism. Most space is devoted to functional calculation and subsequent technical construction of the new design of obtuse-angled crusher where the output setting is adjusted using the motion thread and hydraulic locking system for compensating the thread clearance. The parameters are chosen with regard to the already established older types of cone crushers produced by PSP Engineering, a.s. An inseparable part is the calculation verifying the functionality of the motion thread and gearing. Another essential part of this work are stress analysis of the slot adjusting mechanism design using finite element method and considering two states - adjusting of the slot and crushing itself.
216

Simulationslösungen in Pro/ENGINEER

Simmler, Urs 07 May 2009 (has links)
Im Vortrag werden alle derzeit bestehenden Simulations-Werkzeuge im Überblick vorgestellt und deren Anwendung an einzelnen Beispielen verdeutlicht. Desweiteren beinhaltet der Beitrag die Vorstellung der wesentlichen Neuerungen der Pro/ENGINEER Version Wildfire 5 auf dem Gebiet Simulation. Dabei wird auf die Dynamische Analyse und die Erweiterungen in Mechanica besonders eingegangen.
217

CAD orientierte Teach-In Simulation und Bewegungsoptimierung für beliebige Roboterbaureihen

Riedel, Mathias 13 May 2009 (has links)
Der Vortrag beschäftigt sich mit der Simulation von Handhabungs- Montage- und Fertigungsaufgaben mit Hilfe von einem bzw. mehreren miteinander zusammenarbeitender Industrieroboter. Es werden Möglichkeiten aufgezeigt, wie die Herangehensweise für den Aufbau einer solchen Simulation ist. Weiterhin wird auf das Thema der Glättung von Unstetigkeiten nach verschiedenen Verfahren und deren Auswirkung auf die Bahntrajektorie eingegangen.
218

Zraková paměť jako determinant rozvoje komunikačních kompetencí a kompetencí k učení u žáků se sluchovým postižením / Visual Memory as a Determinant of Communicative and Learning Competencies in Pupils with Hearning Impairment

Kotvová, Miroslava January 2017 (has links)
VISUAL MEMORY AS A DETERMINANT OF COMMUNICATIVE AND LEARNING COMPETENCIES IN PUPILS WITH HEARING IMPAIRMENT ABSTRACT: This submitted work concentrates on visual perception, especially on visual memory and related attention in children and pupils with hearing impairment, which from the theoretical point of view represents the most important compensatory sense for this group of people. The main part of the submitted paper consists in presenting the results of a research survey observing the levels of visual perception and attention in children and pupils in the age group 6 to 8 years old, as well as on comparing them with results achieved by a group of hearing children and pupils of the same age range. We chose four subtests focused on the current state of visual memory and attention. These subtests constitute a part of two standardized tests. The following analysis of the gained data was used to validate our hypotheses regarding the influence of the compensatory mechanism applied when processing visual inputs by people with hearing impairment existing on the level of the central nervous system. Furthermore, the paper provides processed and commented data gained from questionnaires destined for teachers. These questionnaires pursue the evaluation of communicative and learning competencies of the tested study...
219

Meziparlamentní spolupráce v Evropské Unii: tři případy Žlutých karet / The Inter-Parliamentary Cooperation in the EU: the Three Cases of Yellow Cards

Shkaruppa, Maria January 2018 (has links)
This Master thesis focuses on the three occurrences of the so-called Yellow Card procedure, a part of the Early Warning Mechanism introduced into the EU legislative practice with the Lisbon Treaty. The analysis of the practical cases helps to shed light on the development of the interparliamenatry cooperation among the national parliaments of the EU Member States and the ability of this cooperation to affect the EU decision-making process. The work discusses how the Mechanism was institutionalised and whether it established a more direct link between the EU decision-making and the EU citizens, thus creating an additional accountability channel. The thesis addresses to which extent the Mechanism is capable of compensating the national parliaments for being cut off from the EU processes. The next task of the work is to assess how well the interparliamentary cooperation works and whether in the three practical instances the Mechanism proved to be effective. Furthermore, the thesis elaborates on whether the novelty was successful and if it realised the potential to curb the democratic deficit problem in the EU. Attention is given as well to the practical issues with the Mechanism implementation and to how the national parliaments are capable of dealing with them. All in all, the thesis at hand is a...
220

Parlament České republiky a kontrola legislativního procesu Evropské unie / Parliament of the Czech Republic and Scrutiny of European Legislative Process

Nováčková, Kateřina January 2019 (has links)
Aim of this Diploma Thesis is to have a closer look at current powers of National Parliaments of the Member States to influence legislative process of the European Union. The main question is how do National Parliaments control legislative process in practise. Theoretical Framework is based on a debate about Democratic Legitimacy of the European Union. First the term needs to be defined and basic arguments about the (non)existence of Democratic deficit need to be introduced, then the research question can be introduced. The main focus is on Early Warning Mechanism and a process of issueing of reasoned opinions. An assumption is that through a process of issueing those reasoned opinions by National Parliaments that consist of a democratic elected political parties a Democratic Legitimacy of the European Union could be strenghtened. It is a one-case study of Czech Parliament. All the reasoned opinions, that Czech Senate and Czech Chamber of Deputies issued, will be analysed.

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