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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.
281

Rekonstrukce křižovatky ulic Jeremenkova a Pasteurova v Olomouci / Reconstruction of intersection of streets Jeremenkova and Pasteurova in the city of Olomouc

Reiter, Tomáš January 2018 (has links)
This diploma thesis deals with the reconstruction of intersection streets Jeremenkova, Pasteurova and Černá cesta. This design is a new roundabout with three branches and one bypass. The aim of renovation is to improve traffic safety at the intersection and increasing continuity and respecting architectural principles. This project addresses the design of roundabout, analyzing problems and developer technical studies.
282

Elektronický tester tlumení podvozku osobního automobilu / Electronic car suspension tester

Jeniš, Filip January 2018 (has links)
This thesis deals with the development of a conceptually new tester for evaluation of car chassis damping. The tester will work on the basis of tracking of the body attenuation at the points of the silencers after crossing the obstacles. The kinematic motion parameters will be scanned using an inertial measurement unit.
283

Interactive Visual Analysis of Hypergraphs

Chen, ningrui January 2021 (has links)
Access to and understanding data plays an essential role in the increasingly digital world. Representation and analysis of relations between various data entities, i.e., graph and network structures in the data, is an important problem for various industries. In contrast to simple graphs that focus on edges with two endpoints only, a hypergraph provides a natural method to represent multi-way interactions with an arbitrary number of endpoints for each edge, and it can be a better alternative than a bipartite graph for comparable applications. However, traditional approaches for visually representing hypergraphs are purely static diagrams without support for interaction, which can be difficult to perceive and do not scale well with regard to the number of nodes and edges. They are not adequate for the representation and interactive exploration of large or dense hypergraph data sets found in real-world applications. The ISOVIS (Information and Software Visualisation) research group at Linnaeus University has previously introduced a novel radial visualization approach for undirected hypergraphs called Onion. The Onion tool focuses on solving the issues of edge clutter, overlaps, and edge crossings. However, certain open challenges and suggestions for improvements were identified for the respective implementation, and there is an opportunity to fill a gap in the hypergraph visualization research by building upon the original Onion approach study. In this thesis project, we implement the new version of the Onion approach based on the principles and challenges established previously. The contributions of this work include evidence regarding the effectiveness and efficiency of a hypergraph comparison technique, the usability of edge bundling in the context of hypergraph exploration tasks, and the scalability of the interactive visualization through an entirely new web-based version of the Onion approach. To obtain the respective results, the new implementation is applied for two case studies involving real-world data sets, and further validated through a user study with several participants. The results of this work can be helpful for researchers of network visualization and practitioners in need of approaches for representing and exploring data that can be modeled as hypergraphs.
284

Návrh genetického algoritmu pro optimalizaci vybavení distribuční sítě vn / Genetic Algorithm Design for Distribution Network Outfits Optimalization

Ondruš, Tomáš January 2011 (has links)
The work deals with genetic algorithms and their potential use in application software to optimize high voltage switching elements of distribution network. Theoretical part explains the basic concepts of genetic algorithms such as a gene, population and chromosome and basic principles of the development of genetic algorithms.. The main task of the thesis is to design the algorithm that will simulate the distribution of the sectionalizers by telecontrolled section switches or reclosers and analyze how to set the the parameters affecting the convergence speed of genetic algorithm. The basic parameters affecting the convergence of breeding, mutation probability, population size or using of elitism. The second goal is finding a suitable set of input parameters for the selected population sizes without and with using elitism. The results of the work determine the most appropriate settings for each generation and determining the approximate number of generations needed to find the best solution. The genetic algorithm applocation was tested on a less extensive distribution network with six switching elements
285

Detekce QRS založená na počítání průchodů nulou / QRS detection using zero crossing counting

Hanus, Rostislav January 2012 (has links)
This master’s thesis deals with the detection of QRS complex detection using zero crossing counts. QRS detection is an important part of the analysis of ECG signal. From the point of determining the R wave detection is based on the other waves and intervals necessary for the diagnosis of heart. This method is very effective even for very noisy signals. Implementation of the method in Matlab, and the success of detection is tested on the CSE and MIT-BIH database. The optimization algorithm is an optional value for the detector.
286

Studie rybích přechodů na Bečvě / Study of fish-passing facility on the weirs on Bečva river

Chovancová, Kateřina January 2013 (has links)
This master's thesis consists of three main parts. The first section describes some types of fish crossings and basic information of their design. There is also marginally described program HEC-RAS. The second part is about the Zuberská weir and Osek stage. I review here fish ladders according to the original drawings in the HEC-RAS and suggest possible options to address these passable fish crossings for the fish crew. The last section is devoted to Mikulenkov weir where the fish crossing has been completely removed. Here I propose a new fish ramp according to modern knowledge and applicable standards. I also review the proposed fish ramp in the HEC-RAS program in order to verify the hydraulic characteristics.
287

Návrh zdvoukolejnění železniční tratě v úseku Chlumec nad Cidlinou - Hradec Králové / Design of double-tracking study of the track section Chlumec nad Cidlinou - Hradec Králové

Hlávka, Miloslav January 2016 (has links)
Diploma thesis studies a possibility of doubling track between Chlumec nad Cidlinou and Hradec Králové. It proposes some solutions which differ in the lenght of the track section where track speed is increased to 160 kmph. Also, the possibilities of elimination of railway crossings with the roads of any category are examined and overview of costs for construction.
288

Rekonstrukce železniční stanice Vsetín / Upgrading of Vsetín Railway Station

Maixner, Pavel January 2016 (has links)
The aim of the diploma thesis is design of the Vsetín railway station reconstruction according to the current operation and the requirements for persons with reduced mobility. The two new double face island platforms with the height of 550 mm above the top of rail is designed. Further, the speed in passing running lines and also the curves in front of Polanka throat of the station is increased.
289

Rekonstrukce žst. Studenec / Upgrading of Studenec Railway Station

Vlachová, Dominika January 2017 (has links)
The aim of thesis is to design a reconstruction of railway station Studenec, so it would suit current and future traffic. The main purpose of reconstruction is increasing the line speed. The reconstruction reflects on requirements for persons with reduced mobility under applicable legislation.
290

Rekonstrukce železniční stanice Uničov / Upgrading of Uničov Railway Station

Šafář, Zdeněk January 2017 (has links)
This thesis focuses on the reconstruction design of Uničov railway station. The aim was to create a solution which would satisfy both traffic and passenger requirements. The design puts an emphasis on a compliance with applicable laws and standards, simplicity and usefulness. New constructions were designed for maximum safety. Railway station accessibility for disabled persons played an important role in the design. In comparison with the original state, the permissible line speed was increased and new platforms and drainage system were designed.

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