National Repository of Grey Literature 226 records found  beginprevious178 - 187nextend  jump to record: Search took 0.00 seconds. 
Computer modeling of MOSFET transistor
Major, Jan ; Harwot, Ondřej (referee) ; Pokorný, Michal (advisor)
Work is focused on computer modeling of PN junction and MOSFET transistor in the program COMSOL Multiphysics and in program TiberCAD. The text is discussed on the drift and diffusion in semiconductors. Also shown is a method of modeling the PN junction and MOSFET transistor in the programs and compare models.
Distribution network models
Hrabčík, Oldřich ; Mišurec, Jiří (referee) ; Mlýnek, Petr (advisor)
This thesis deals with transmission of data over power-line. There is theoretically described PLC technology and its classification, properties and used modulation techniques. A substantial part is focused on the mathematical description of distribution network using two methods, with multipath propagation and ABCD matrix. These methods are mutually compared. Furthermore, they are examined depending on the transfer functions of the topology and capabilities for unknown topology. Calculations of transfer functions are implemented using Matlab. The results were then processed graphically and evaluated.
Wireless transmission interference modeling (AWGN, Rayleigh, Rice fading channels)
Hloušek, Tomáš ; Gleissner, Filip (referee) ; Mikulka, Jan (advisor)
This thesis describes and models wirelesss transmission intereferences in real communication channels. A signal received on a fading channel is subjected to a multiplicative distortion and to the usual additive noise. Real channel adds to the signal noise and fadings. Gaussian noise is a result of channel awgn. Fadings is implicated by multipath propagation of signal in Rayleigh and Rician channels. Main goal of this project is to program BERsolve, which is created in tool GUIDE in Matlab. User program BERsolve makes it possible to analyse bit error rate and symbol error rate for some types of channel models, which are defined by standard COST207. BERsolve offers some other functions i.e. display time behaviour, constellation diagram and spectrum. This program provides us with an overview representation of problem by multipath interferences in communication channels.
ECG generator for equipment testing
Čech, Petr ; Rampl, Ivan (referee) ; Chmelař, Milan (advisor)
This diploma thesis is focused on testing ECG monitors and ECG instruments. There are discussed origin and charakteristics of ECG signal. The ECG signal is presented by standard leads. This is the reason, why the way of making leads is mentioned. One chapter is aimed at generating ECG signal. There are set requierements for the ECG generator. These requierements results from ECG instrument possibilities and from ECG signal character. Next part of this diploma thesis includes hardware design of each part of the system. The system was designed with respect to mobility and 12-leads systems compatibility. Finaly the thesis includes design of the controll software.
Production of glovebox handle on FDM 3D printer
Šuranský, David ; Fiala, Zdeněk (referee) ; Zemčík, Oskar (advisor)
The bachelor thesis analyzes car interior handle production, whose design was slightly modified compared to the original part. It consists of few design drafts, selection of the most suitable one, modification for 3D printing purposes and the part production of ABS material on a FDM printer. Post-processing operations and technical as well as economical conclusions are mentioned at the end of the thesis.
On the digitizing and modeling of real surfaces for machining
Šnejdar, Martin ; Polzer, Aleš (referee) ; Píška, Miroslav (advisor)
This bachelor thesis deals with the procedures of the digitizing and modeling of real surfaces for machining. The work includes technological procedures and individual phases of the process leading to acquisition of resultant surface. The aim of this work is familiar with the procedures and phases in reverse engineering, which is demonstrated on a particular example using the Mathematica software.
Modelling and simulation in the field of waste management
Pařízková, Iva ; Popela, Pavel (referee) ; Touš, Michal (advisor)
This bachelor thesis is focused on the application of multilayer perceptron net for modelling the technolgical units of waste-to-energy facility ZEVO Malesice. It was specifically created to model the amount of steam generated in steam-boilers and to quantify the consumpion of steam by an external subject. Firstly, the basics of neuron theory are presented. In the following, a Statistica artificial neural network module is described. This module was used to develop the neural network models. The models appearing in practical section were created with the use of STATISTICA software. Last chapter deals with detailed description of the developed models and their comparison with simple linear and nonlinear regression models. Last but not least, the description of a software providing easy implementation of neural network models into Visual Basic for Application programming language is presented.
Production of handbrake component of the car using the rapid prototyping technology
Drbola, Vladimír ; Matuška, Martin (referee) ; Dvořáček, Jan (advisor)
Bachelor thesis is mainly focused on manufacturing of hand brake component for Fiat Stillo using method Fused Deposition Modeling. Introduction part contains a brief description of Rapid Prototyping technology. Practical part of the work is based on modeling of real component of handbrake, whose fastener part has been damaged. In the work is also description of the necessary modifications for the production of model by FDM method. Production of the component has been performed on Dimension uPrint FDM printer. The final part contains an assessment of production costs compared to price of the product in retail stores.
AD Inventor – 3D modelling of O3-Osmera robot platform
Švoma, Stanislav ; Heriban, Pavel (referee) ; Matoušek, Radomil (advisor)
The bachelor thesis deals with creating a three-dimensional model of three-wheel mobile robot chassis, which is already physically implemented. The result of this work is three-dimensional model, the basic simulation tests and animation within the possibilities of applied software.
Modeling of hydraulic drives by means of contemporary simulation systems
Štefánek, Tomáš ; Křupka, Ivan (referee) ; Nevrlý, Josef (advisor)
This bachelor thesis deals with modeling of hydraulic gears by the help of simulation systems such as DYNAST and MATLAB. The main part of the thesis includes a view of various modifications of hydraulic gears with description. Hydraulic gears, changing of geometrical content and energy transformation in hydrodynamic gear by the help of Euler equation are solving in the next part. Thesis is an expertise review.

National Repository of Grey Literature : 226 records found   beginprevious178 - 187nextend  jump to record:
Interested in being notified about new results for this query?
Subscribe to the RSS feed.