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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.
11

Možnosti zvýšení propustnosti optovláknové průmyslové sítě / Possibilities of increasing the throughput of optical fiber industrial networks

Čičmanský, Tomáš January 2015 (has links)
Diploma thesis deals with problems of industrial networks using optical fiber as the main transmission lines. The task of the diploma work is to study and summarize the issues of industrial networks as well as the ways to increase their transmission capacity. In telecommunications and computer networks are generally used multiplexes, thanks to which we are able to achieve the desired transmission capacity. Consequently, the following work deals with the selection of the adequate solutions using described multiplexes as well as other transmission methods. The aim of the diploma work is to compare various renovation techniques of an old industrial network. Using this network as an example the work should demonstrate the individual problems and their solutions while considering different types of methods used. Based on the price, the performance and the difficulty to install other devices and transmission media we are able to select the appropriate solution for optical link.
12

Řízení vibrační stolice pomocí embedded systému / Vibration system control through embedded system

Genčanský, David January 2014 (has links)
The importance of vibration and vibration tests is increasingly relevant given th growing number of mobile electronic devices. This thesis descibes the design of control vibrating shaker table, which is an essential element for vibration testing. At the beginning is an initial look on the problematics of vibration, vibration test and influences of vibrations on electronic components, solder joints and other parts uses in microelectronics. Provides insight to the principles of vibration measurement and controlling system used in industry. The workplace is designed for testing and measuring of vibrations. The workplace designed and developed in the LabVIEW enviroment based on CompactRIO platform.
13

Řízení BLDC motoru v oblasti nízkých otáček / Control algorithms for BLDC motor for low speeds

Kozáček, Peter January 2015 (has links)
The diploma work concerns on an issue of data collection of speed and electrical angle based on informations from Hall sensor with the necessary resolution for control of BLDC motor. Specifically, concenred on a section with low speed. Most of moors use Hall sensor for detecting speed and position of the rotor. At low speed section, becomes the situation when we can not determine the position of the rotor with (the) required (sufficient) resolution, this situation creates a „wince“ in the control (ripple torque). The task is to design and evaluate the possibilities of the algorithm for control and acquisition speed and rotor position with the required accuracy.
14

Audit řízení rizik v systému managementu / Audit of risk control in quality management

Maslíková, Dominika January 2016 (has links)
The master´s thesis analyses the current state of risk management of the production process. The theoretical part describes the risk management process, selected tools and methodologies for the identification, analysis and assessment. The practical part of the thesis provides a methodology for auditing risk management. One of the goals is to verify applicability of the audit in manufacturing organization. Practical understanding of the risk management process and identification of potential operational risks in the risk areas are analysed using FMEA method.
15

Adaptivní řízení varny malého pivovaru / Adaptive control of small brewery

Kalivoda, Jakub January 2014 (has links)
This final thesis deals with adaptive control of small brewery. Contains a short description of brewing technology and adaptive control. Includes design of small brawery and control system based on STM32F407 Cortex-M4 microcontroller. For online identification is used Recursive Least Squares Method. The controller function perform a modified PSD controller with filtered derivative component, reducing the first overshot and dynamic antiwindup. The proposed adaptive controller is implemented into microcontroller. Created device i used for semi-automatic beer production.
16

Obchodní strategie v neúplném trhu / Obchodní strategie v neúplném trhu

Bunčák, Tomáš January 2011 (has links)
MASTER THESIS ABSTRACT TITLE: Trading Strategy in Incomplete Market AUTHOR: Tomáš Bunčák DEPARTMENT: Department of Probability and Mathematical Statistics, Charles University in Prague SUPERVISOR: Andrea Karlová We focus on the problem of finding optimal trading strategies (in a meaning corresponding to hedging of a contingent claim) in the realm of incomplete markets mainly. Although various ways of hedging and pricing of contingent claims are outlined, main subject of our study is the so-called mean-variance hedging (MVH). Sundry techniques used to treat this problem can be categorized into two approaches, namely a projection approach (PA) and a stochastic control approach (SCA). We review the methodologies used within PA in diversely general market models. In our research concerning SCA, we examine the possibility of using the methods of optimal stochastic control in MVH, and we study the problem of our interest in several settings of market models; involving cases of pure diffusion models and a jump- diffusion case. In order to reach an exemplary comparison, we provide solutions of the MVH problem in the setting of the Heston model via techniques of both of the approaches. Some parts of the thesis are accompanied with numerical illustrations.
17

Exponenciální řízení homogenních markovských procesů / Exponenciální řízení homogenních markovských procesů

Stanek, Pavol January 2012 (has links)
Title: Exponential control of homogeneous Markov processes Author: Pavol Stanek Department: Department of Probability and Mathematical Statistics, MFF UK Supervisor: Mgr. Peter Dostál Ph.D., Department of Probability and Mathematical Statistics, MFF UK Abstract: This master thesis concerns exponential control of Markov decision chains. An iterative alghorithm for finding a control, that maximizes a long term growth rate of expected utility is developed. The utility is measured by exponential utility function. The algorithm is derived for both discrete time and continuous time chain. Subsequently, the results are applied on the problem of optimally managing port- folio with proportional transaction costs. The dynamics of the investor's position is derived and the consequent process is approximated by Markov chain. Using the iterative alghorithm, the optimal trading strategy is numerically found. Keywords: exponential control, Markov chain, portfolio optimization, proportional transaction costs 1
18

Distribúcia liekov na Slovensku / Distribution of medicines in Slovak republic

Čechová, Kristína January 2012 (has links)
The Master thesis is dedicated to distribution of drugs and medicines in Slovak republic. The first chapter includes definition of logistics and describes the basic concepts of supply chain management. It also explains the main reasons for including distributors and pharmacies in distribution channel and what are their main roles. The Slovak health policy, legislation, and specificities of pharmaceutical industry are described in the thesis too. The last chapter of the first part deals with the price regulation and explains how the prices are created. The practical part includes the analysis of Slovak pharmaceutical market. The last chapters are crucial to understand the problem. I described here how three real companies -- pharmacies and a distributor work and operate on the market and I tried to find the best ways how to optimize their processes. The current trends in data synchronization and standardization are also included.
19

Current and future trends in cloud CRM / Current and future trends in cloud CRM

Nemček, Sebastian January 2011 (has links)
The diploma thesis is committed to mapping CRM applications available in cloud and trends within. The goal is to describe what CRM is, how it evolved into Cloud CRM, analyze main differences between the two approaches and analyze trends that can be observed in CRM market and CRM applications. This is coupled with description of the most common CRM solutions and products available both on-premises as well as on-demand. In the first part, the thesis introduces theory behind Customer Relationship Management and its different understanding by various authors. It also describes the most common functionality of CRM. The second part explores the world of CRM application, characterizing infrastructure behind, deployment models, access options, licensing models and technology. In the next part the three on-premise solutions -- Oracle Siebel, Microsoft Dynamics CRM and SAP 360 Customer are described in terms of their look and feel, functionality, social and mobile CRM capabilities and pricing. The next part finally deals with CRM in the form of Cloud, introduces the term cloud computing, clarifies when cloud is the right choice and generally compares costs of running CRM on-demand and on-premise. This is followed by trends description on CRM market and functionality. The last chapter describes two cloud CRM solutions for each of the enterprise, medium and small company target segments.
20

Návrh řízení procesu honování / Proposal for Process Control of the Honing Operation

Gavač, Adam January 2017 (has links)
The study investigates potential of promising combination of Lean principles and Industry 4.0 tools in order to find a solution for control of manufacturing process. Firstly, each of the buzzwords is defined and their relation is explained. Then, rules which will facilitate implementation of I4.0 tools into Lean production are enumerated. Afterwards, situation at the shopfloor is observed and statistical analysis of production data is done to analyze current manufacturing process. Deep investigation revealed strong potential for improvement, which was the motive to elaborate a proposal for Lean automated process control.

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