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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.
171

Návrh sklopné vrtule pro bezpilotní prostředky / Design of folding propeller for UAVs

Dítě, Radovan January 2019 (has links)
This master's thesis deals with the design of foldable propeller for UAVs. The design of the foldalble propeller is created based on theory of propellers and also on tha detail ana-lyzis of existing foldalble propellers with similar dimensions. The propeller is then manufac-tured and tested. One of the part of this thesis also describes design of central hub. At the end the methodical procedure of creating foldable propellers is suggested.
172

Návrh uložení předního kola Formule Student / Formula Student Front Wheel Carrier Design

Černý, Filip January 2012 (has links)
This thesis deals with the design of the front wheel hub and upright of Formula student car. First component is a short search on Formula Student event and comparing diverse structures of upright for use in both racing and road cars. It also includes design of hub and upright in the CAD program and computational model of the upright created in FEM program specifically for stress analysis in selected conditions. It also includes optimization of the overall proposal.
173

Vliv velikosti náboje na hltnost a účinnost vírové turbiny / The influence of the hub on discharge and efficiency of the swirl turbine

Husák, Martin January 2012 (has links)
The aim is to determine by numerical modeling the influence of the hub on discharge and efficiency of the swirl turbine. The first part summarizes the theoretical knowledge about water turbines. In the main part is done hydraulic design of turbine, create model in Inventor, export geometry in Gambit and build mesh. Then it is described the solution methodology in Fluent, evaluation of computed data and their presentation in the form of tables and graphs
174

Úprava zavěšení zadního kola formulového vozu / Formula Car Rear Wheel Carrier Redesign

Okáník, František January 2014 (has links)
The thesis consists of rear wheel suspension design for light Formula Student racing car, especially design of upright, wheel hub and other parts of the assembly. Design was done in CAD software PTC Creo 2.0. Thesis also mentions calculation of critical wheel loads, wheel bearing life calculation and wheel loads during the race as well as stress analysis in Ansys Workbench and fatigue life analysis.
175

Konstrukce zavěšení předního kola závodního vozidla / Race Car Front Wheel Carrier Design

Fejfar, Marek January 2014 (has links)
This diploma thesis deals with design of uprights and wheel hubs of front wheels of Formula Student race car. Specifically race cars named Dragon 3 and Dragon 4 of TU Brno Racing team. In this thesis there will be load calculations of front wheels, choosing of bearings and uprights and wheel hub’s design. Then control of design by FEA analysis. And finally comparing of both designs and comparing with previous designs.
176

Factors Influencing Innovation Capacity of Regional Innovation Hubs

Sawunda Hannadige, Sanvida Vishani, Weerasinghe, Dona Kithmini Chiranthini January 2021 (has links)
Title: Factors Influencing Innovation Capacity of Regional Innovation Hubs Authors: Sanvida Vishani Sawunda Hannadige & Dona Kithmini Chiranthini Weerasinghe Supervisor: Ehsanul Huda Chowdhury Examiner: Maria Fregidou-Malama Date: 28- Jan- 2021   Aim: This study aims to identify the factors influencing innovation capacity of innovation hubs and explore how innovation hubs influence regional innovation process.    Methodology: This is a qualitative study which follows the inductive approach and the strategy of multiple case study. Primary data were collected through semi-structured interviews with ten respondents in the network of an innovation hub.   Findings: The findings of this study suggest five main factors which positively influence the innovation capacity of an innovation hub. Those are infrastructure, knowledge sharing, culture, marketing strategies and supporting network of the hub. Further through the findings we identified that innovation hub creates a well-balanced socio-economic impact on the region it operates.   Contribution: This study provides a comprehensive knowledge to the existing theories by discovering five theoretical areas which influence innovation capacity. Also it assists the stakeholders of innovation hubs to overcome their deficiencies in order to build a strong innovation capacity. Further, this study encourages innovators, entrepreneurs and investors to work in collaboration with innovation hubs.   Suggestions for Future Research: Qualitative or quantitative methods can be used to explore the outcomes in different perspectives. The newly identified features under marketing strategies can be further studied for their importance in other domains such as ecosystem and stakeholders. The revised framework can be tested in future researches.
177

Globalizace a letecká doprava: strategie středoevropských klasických dopravců / Globalization and Air Transport: Strategies of Central European Legacy Carriers

Kořený, Petr January 2011 (has links)
As the world changes because of the globalization, the environment of the aviation changes as well. The airlines are forced to adapt to these changes and choose new strategies to operate successfully. The main objective of this thesis is to, according to the title, describe, identify and explain the processes which significantly affect current image of the world of aviation and focus on four Central European legacy carriers. The issues of globalization and its affect on behavior of economic actors, which airlines are, are discussed as first. The following part is dedicated to the characteristics of aviation and its components, the milieu and the behavior of the airlines as well as the newest strategic trends that are being chosen is described as well. The theoretical part is followed by the empirical one where the particular steps of examined airlines are analyzed and explained. The hypotheses concerning the probable behavior and adopted strategies of four analyzed carriers are expressed according to the discovered theoretical principles of the operations of current legacy (network) carriers. Whether the hypotheses are completely or partially confirmed, is discussed at the end of the empirical chapter. Key words: globalization, air transport, legacy carriers, airline alliances, hub and spoke, codeshare
178

Are you ok app

Nilsson, Peder, Kold Pedersen, Kasper January 2020 (has links)
Denna avhandling beskriver hur en smartphone-baserad larm-applikation som ger säkrare resor för cyklister och löpare kan konstrueras. Genom att övervaka och utvärdera GPS-data från telefonen över tid skickar den föreslagna applikations-prototypen, namngiven till Are You OK App (AYOKA), automatiskt SMS-meddelanden och initierar telefonsamtal till kontakter i en lista konfigurerad av användaren när densamme har råkat ut för ett fall.I detta projekt härleds fall utifrån GPS-inaktivitet (när användarens geografiska koordinater är oförändrade inom ett valt tidsintervall). Detektion av GPS-inaktivitet, i kombination med att användaren inte har svarat, sätter igång larmfunktionen i applikationen. Projektet exemplifierar också hur implementeringen av ett flöde som delar data i ett moln, vilket använder Microsoft Azure som plattform, kan förbättra applikationens datainsamling avsevärt. Genom att använda en IoT Hub, Stream Analytics och en Azure SQL-databas, visar prototypen hur insamlad data kan centraliseras och potentiellt användas i framtida forskning inom övervakning och analys. Den testade prototypen visar ett förbättrat nöd- / säkerhetssystem som kan fungera i många olika sammanhang. Metoden för detektion passar relativt bra med fokus på cyklister och löpare eftersom dessa aktiviteter innebär att utövaren förflyttar sig, vilket i sin tur gör GPS-spårning effektiv. Några nackdelar som diskuteras är den höga grad av interaktion från användaren som behövs för att urskilja ett fall från en vald paus. För att möjliggöra detektering av fall från fysisk aktivitet som sker på en och samma geografiska plats, skulle det vara nödvändigt att i detekteringen använda data från accelerometer och gyroskop. I avhandlingen föreslås att prototypen, inklusive delnings-flödet för molndata, kan tjäna som ett ramverk för framtida system för smarta telefoner där fall-detektering använder sig av strömmad sensordata från enheten. / This thesis describes how a smartphone-based alarm application can be constructed to provide safer trips for cyclists and runners. Through monitoring and evaluating GPS data via the mobile device over time, the proposed application prototype, coined Are You OK App (AYOKA), automatically sends SMS messages and initiates phone calls to contacts in a user-configured list when a fall is detected. In this project, falls are inferred on the basis of GPS-inactivity (in this context defined as when the user’s geolocation has not changed within a selected time interval). Detection of GPS-inactivity, combined with a lack of response from the user, will trigger the alarming features of the application. The project also exemplifies how the implementation of a cloud data sharing flow, which uses Microsoft Azure as a platform, can significantly enhance the data gathering capabilities of the application. By utilizing an IoT Hub, Stream Analytics and an Azure SQL database, the prototype demonstrates how the gathered data can be centralized, and in future research could potentially be utilized for monitoring and analytical purposes. The method of detection performed relatively well with the focus on cyclists and runners since these activities involve changing of geographical coordinates, thereby making GPS-tracking effective. By focusing on detecting GPS-inactivity, it is argued that the prototype could potentially be utilized in other emergency scenarios apart from falls, such as being hit by a car. A disadvantage discussed includes the high degree of reliance on user participation to discern a fall from a voluntary pause. To enable detection of falls from physical activity occurring in one location, it would be necessary to incorporate data from accelerometer and gyroscope sensors into the current fall detection functionality. This thesis suggests that the prototype, including the cloud data sharing flow, can serve as a framework for future smartphone-based fall detection systems that use streamed sensor data.
179

Nádraží VRT letiště Brno Tuřany / HST Station at the Airport Brno Tuřany

Viktora, Jakub January 2012 (has links)
High-speed corridor is the future of travellibg. Many Eauropian states have begun with building it a few years ago and it works well. The Czech Republic still does not have this form of transport, but due to the location it will be necessary to build high quality railways even here for the future connection across Europe. This thesis deals with the construction of high-speed train stop (the HST) nearby the airport Brno Turany. The service follows the previous semestral work - Brno main railway station. The HST station building is drafted as a bridge over the rail and the platforms, it works not only as a check-in and waiting area but also like a pedestrian crossing over the corridor. The solid responds to the airport nearby and used bridge construction to smartly takes roof up. Public parts are at ground level, technical background and maintenance are located along the platforms below the ground level.
180

Jaroslavice – sídlo v krajině / Jaroslavice – place in the landscape

Dräxlerová, Laura January 2018 (has links)
The project of Cultural hub for Jaroslavice village is based on the rich history of this small borderline area. It is aiming on improving the current state of the region by connecting it into the cultural net and coordinating creative project within the area. It focuses on attracting foreing artists and connecting them with local community as well as coworking with art schools. It provides workshops and courses for local people and targets children and young people for developing their relationship to culture and creativity, The most attractive part of the project is the „Laboratory of Light“. It is composed from 8 different light situations for artist to train their skills.

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