National Repository of Grey Literature 26,040 records found  beginprevious26021 - 26030next  jump to record: Search took 1.08 seconds. 

Analysis and optimization of the production system using computer simulation
Sekerová, Tereza ; Knoflíček, Radek (referee) ; Hromková, Ivana (advisor)
This thesis is focused on simulation and optimization of manufacturing systems. The aim is to explain basic concepts relating not only to the simulation and optimization but also generally to the production. The creation of the simulation model is shown by using simulation software Factor/AIM. The basic concepts related to the production are described in the introductory section. The next part explains the development of simulation model, simulation tools or lead time calculation of production and product. Last chapter describes the creation of a specific simulation model in the simulation software Factor/AIM. Simple production of bent metal hooks is simulated. Afterwards an alternative manufacturing process is proposed and analysis of original and new manufacturing process is done.

The Specifics of Financial Management of Holdings Companies
Ficbauer, David ; Kočenda, Evžen (referee) ; Král, Bohumil (referee) ; Zinecker, Marek (referee) ; Režňáková, Mária (advisor)
The main purpose of the thesis is to explore the specifics of the financial management of holdings companies in the Czech Republic with an emphasis on the area of financial management. However, the author assumes that persistent reasons for holding creation is using of synergy effects consisting mainly of centralized management of cash flows to minimize the cost of capital and minimizing the risk of an individual investor who actively makes managerial functions in view guarantees of individual companies. It was found the lack of a comprehensive and systematic approach for a qualitative research. A total of 15 holding companies was use for the qualitative research. The outcome gives many answers concerning the specifics of the financial management of the holdings companies. It seems guarantee and minimizing cost of capital are key points. The synergistic effect of the holding companies can be used when transferring financial means between companies holding. The impact of the transfer of available financial means was simulated for holding No. 13. It was clearly shown to decrease WACC at one of the companies within the holding.

Presentation Software for Physics on Elementary Schools
Matoušek, Miroslav ; Seeman, Michal (referee) ; Štancl, Vít (advisor)
This final thesis deals with the software supporting the education through the presenting the physical process. Specifically, it deals with the kinematics on the level of the basic school and secondary school. Next there are described the basics of pedagogy, didactics, simulation and modelling referring to the suggested programme. There is also a suggested system and its graphic user interface based on the gained findings which is later implemented.

Simulation of Complex Installment Schedule
Veselý, Michal ; Zbořil, František (referee) ; Samek, Jan (advisor)
The aim of this thesis is to examine relations from the field of financial mathematics concerning consumer and cash loans. Further objects of interest are various types of loan repaying, interest calculation and generating the installment schedule. The result of this mathemetical principles analysis is a complex simulator of installment schedule which was created for testing and configuration purposes in HCI company (Home Credit International).

Switched laboratory power source
Divílek, Petr ; Havlíček, Tomáš (referee) ; Pavlík, Michal (advisor)
The main aim of this work is to provide an overall summary of the problem of switched power supply. The stepwise description of the circuit components and their functions explains the way how the switching power supplies work. Bachelor thesis is focused on description, simulation and design of switching power supply powered by current PC of the ATX resource, where 12 V is used.

Comparison of Instrument Transformer and Sensor Applications in Feeder Terminal REF 542plus
Hrycík, Tomáš ; Majer, Karol (referee) ; Orságová, Jaroslava (advisor)
The aim of this Master´s thesis is use of instrument transformers and sensors on field of industry protection. We will compare current and voltage transformers, current sensor – based on Rogowski coil, voltage sensor – based on voltage divider. By this measure devices, we can monitoring values of analog quantities in medium voltage switchgear. It is impossible to compare, measure and analyze without this measure devices. There is protection terminal REF542plus, which can compile this values. The REF542plus ability are measuring, monitoring, remote control and protection. First, we will discuss about theory of sensors and convential instrument transformers and analysis of analog signal. We will compare analog input channel on sensor´s analog module and transformer´s analog module. There are few differences between type of analog modules. For analog signal analysis are important frequency filters and Analog/ Digital Convertor (sigma-delta). We will describe functions and options of REF542plus. In practical part of this project, we will test protection functions of protection terminal. First, protection terminal will be connected to sensors. Second protection terminal will be connected to transformers. For testing we chose Earth-fault directional protection and differential protection. We will make only secondary tests. That´s mean, input analog quantities to REF542plus will be simulated by tester. In all we will verify quality of protection. We will focus on lower settings of protection and we will inject protection by low current. Objectives are testing of trip characteristics and measuring of trip time.

Design and simulation of manufacturing systems using simulation software for advanced planning and scheduling
Chalupa, Josef ; Knoflíček, Radek (referee) ; Hromková, Ivana (advisor)
The first part of the work is focused on basic concepts relating to the manufacturing process and types of production planning and scheduling. Furthermore, the methods and the philosophical concept of planning and scheduling. The second part of the thesis deals with the APS system and its implementation in the simulation software Asprova. Simulation model, which is subsequently optimized is created using the Asprova software.

Software for the simulation of autonomous robot
Šťastný, Martin ; Lang, Stanislav (referee) ; Zuth, Daniel (advisor)
Objective of this bachelor work is to make research of SW, which are used for simulation of autonomous robots. At the beginning I explain general concepts of robotic simulation. And I also explain advantages of usage of robotic simulators. In the first part of my research are described some chosen robotic simulators. The second part of my research compares robotic simulators, which is more suitable for simulations of robotic operations. In the end of my research the most suitable simulator is taken and used for simple robotic demonstration.

Vývoj agentních modelů pro ekonomickou simulaci
Šalamon, Tomáš ; Řepa, Václav (advisor) ; Hřebejk, Petr (referee) ; Král, Jaroslav (referee)
This thesis is about the development of agent-based models that are a method of simulation of economic processes and environments using multi-agent systems. Agent-based modeling seems to be an unappreciated approach that is expected and has a potential for a much wider application than it actually has. The purpose of thiswork is to evaluate the reasons for such situation and to offer solutions. The following were identified among the reasons for a low utilization of the method: a wide gap between theory and practice in the field, doubtful reliability of the method, lowconfidence in its results, complexity, missing methodologies, problems with suitable development frameworks, limitations of computational performance, a lack of awareness among the public and certain other problems. Agentology; (i.e. a methodology for the development of agent-based models) was proposed in this thesis in order to address issues regarding the development of agent-based models. There are six defined roles of project participants in the methodology: expert, analyst, modeler, platform specialist, programmer and tester. The design and development process consists of four phases and nine steps beginning with task formulation, conceptual modeling, and platformspecific modeling to the development of the system. For the design phases, agent modeling language for agent-based models was derived.

On the Optimal Ratio of Proportional and Integral Actions in a PI Controller
Klán, Petr ; Gorez, R.
This paper intends to give a quantitative characterization for the aggressiveness of PI control in order to derive new tuning relations characterizing the PI control. These relations could guarantee some predetermined aggressiveness. Simulation results with a collection of test processes promote such a concept. They show that a certain optimal aggressiveness is needed for minimization of the Integral-Time-Absolute-Error (ITAE) criterion.