National Repository of Grey Literature 140 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
Microplastics and plastics from a legal perspective
Novák, Adam ; Damohorský, Milan (advisor) ; Fiala, Zdeněk (referee) ; Průchová, Ivana (referee)
Microplastics and plastics from a legal perspective Abstract The dissertation deals with the management of microplastics from a legal point of view, following the ever-increasing pollution of the environment by plastics. The issue of microplastics has not yet been dealt with at this level in the Czech environment. The dissertation is not aiming only at the management of primary microplastics, which is most often dealt with by existing legislation at the level of individual states, but also at the management of secondary microplastics, which have been so far legally dealt with only by indirect regulation (through limiting plastic waste as a source of this type microplastics). The aim of the work is primarily to create an overview of the existing legislation of the management of microplastics at the international and European level (including individual legislation of the EU member states). Based on this overview is made an analysis of this legislation and are formulated proposals and recommendations for improving the management of microplastics, especially to limit their release into the environment. The dissertation is divided into nine chapters: The first chapter is the introduction, in which the grasp of the topic, research questions and the structure of the work, including the methods used, are...
Machining on a CNC machine including automatic measurement
Kubín, David ; Fiala, Zdeněk (referee) ; Kalivoda, Milan (advisor)
The topic of the bachelor thesis is the analysis and integration of the measuring cycle into the machining process on a CNC machine. The topic is dealt with in two parts, theoretical and practical. The theoretical part briefly discusses the history of NC/CNC machines, including the basic control modes of NC/CNC machines and the structure of the NC programme. Furthermore, the control systems produced by renowned companies available on the Czech market are presented. Besides other facts, measuring cycles in control systems and their examples are also mentioned in this part. The practical part of the bachelor’s thesis is focused on the creation of a suitable illustrative component, the subsequent compilation of operational data and documents into the technological preparation of the production. The production of the component and its subsequent measurements are based on these data. The production process ends with the evalution of the information obtained.
Innovation of a Clamping Jig and Technology for Milling and Punching of Keys
Štancl, Dominik ; Fiala, Zdeněk (referee) ; Slaný, Martin (advisor)
The thesis deals with the design of a new device for grooving and punching keys. The introductory part is devoted to the history and development of the keys up to the present. It also deals with the individual types of milled and punched semi-finished products and discusses the process of key manufacturing. In the main part, a jig and a feeding mechanism are designed, which ensures the feeding of keys and reliable clamping during machining. Afterwards, the profile surface analysis of the machined surfaces will be made. In the end, the new equipment will be evaluated and compared in terms of selected parameters that affect the functional properties of the final product.
Selection of the optimal VBD geometry for a given technology
Šuga, Samuel ; Jaroš, Aleš (referee) ; Fiala, Zdeněk (advisor)
This thesis is focused on testing the roughing of different geometries of negative D-type tools during turning long thin parts with a slenderness ratio of 15 or more. 5 tools were selected for this task. Data from the cutting process was measured using a dynamometer, accelerometer and microphone for sound recording. The results are evaluated using FFT analysis and other signal processing methods as graphical outputs. The aim is to select the most suitable type of geometry for this application.
Ball screw testing
Kukliš, Richard ; Jaroš, Aleš (referee) ; Fiala, Zdeněk (advisor)
The main goal was to design a test rig and create a methodology for evaluating the measured data from the life tests of linear motion systems with ball screws. The first part is the research of basic knowledge about ball screws, which are important for understanding the behavior of the entire ball screw motion system and methods created from previous experiments on similar issues. The next part of the thesis is directed at the design and selection of individual parts and sensors for the testing rig. The methodology is based on the evaluation of measured parameters describing the condition of the tested ball screw and it includes verification of the functionality of the test rig from the first measured data.
Design of a combined tool for holes machining of the universal chuck
Kovář, Matouš ; Fiala, Zdeněk (referee) ; Jaroš, Aleš (advisor)
This master’s thesis focuses on the design of a combined tool for machining holes of a universal chuck. The thesis analyses the component and technologies used for the production of precision holes for pinions in the chuck body. Furthermore, the current production of precision holes is described, including the used machine, tools, cutting conditions and technological process with machine times. In the next part of the thesis, a proposal of more efficient production of precision holes is made accompanied by a design of a combined tool. The design includes its structural treatment, used cutting tool inserts and drill, the method of clamping, used material, the heat treatment, the determination of the cutting conditions and the development of a new technological procedure. The thesis concludes with a technological and economic evaluation, where the existing and the newly proposed technologies for the production of precision holes for pinions in the chuck body are compared.
Design of production technology for a component of a rotary shape
Dvořák, Dominik ; Fiala, Zdeněk (referee) ; Kalivoda, Milan (advisor)
For the design of the interlocking shaft production technology, this component was first described and after defining the limiting conditions of production, three variants of its implementation were selected. The technologies used were characterized and subsequently the most economically efficient variant was chosen, which also met the specified criteria. A production process with a tool sheet was compiled for this variant. Furthermore, the NC code was created in the control system of the production machine, followed by its verification during the simulations. Two prototypes were made. The first of them was used to optimize the design of production technology, the second was produced after simulations to verify the correctness of the proposed solution. This was followed by a technical and economic evaluation, used to predict the production costs of the entire production volume and compare them with the estimate.
Algorithm ICP and its usage for 3D registration
Fiala, Zdeněk ; Hoderová, Jana (referee) ; Procházková, Jana (advisor)
This thesis deals with the ICP algorithm used for point cloud registration. The thesis is divided into three main parts. The first part summarizes the basic concepts needed for the topic. The second part describes the basic ICP algorithm and its improvements. The last section contains the implementation of the algorithm in the C# programming language and the results of testing on real data.
Public Participation in Environmental Decision-making
Balážová, Julie ; Sobotka, Michal (advisor) ; Fiala, Zdeněk (referee)
Public Participation in Environmental Decision-making Abstract This thesis is dealing with participation of public in environmental administrative proceedings. The topic is widely discussed in connection with efforts to quicken planning and construction proceedings. It is, however, far from limited to them - the subject matter is scattered in a multitude of legal acts. Therefore, the aim of this work is to present various acts and analyse the requirements for and the extent of participation of persons in proceedings conducted under them in a compact manner. Firstly, the readers are familiarised with forms of "participation" and various definitions of "public". The legal sources of this topic are introduced next, and a few, that will be addressed in detail in the following parts of this thesis, are selected. Afterwards, the author explains how the code of administrative procedure defines parties to proceedings, how is that important for talking about other acts and what problems can arise from applying these provisions in practice. The next part introduces the readers to an international document that deals with public participation in general - the Aarhus convention and explains its importance in European and Czech law. Furthermore, the author focuses on characterization of legal acts on integrated...
Kinetics of selected substances in dermal exposure (Polycyclic aromatic hydrocarbons)
Kotingová, Lenka ; Fiala, Zdeněk (advisor) ; Bencko, Vladimír (referee) ; Čegan, Alexander (referee)
Kinetics of selected substances in dermal exposure (polycyclic aromatic hydrocarbons) Skin is one of the largest human body organs and its proper functioning is vital for human body. Dermal exposure represents one of the most important pathways of exogenous substances into the body. Data on kinetics of transdermal absorption of polycyclic aromatic hydrocarbons (PAH) have been yet so far insufficient. Present estimates of health risks level connected to dermal exposure to PAHs, are loaded with great deal of uncertainty. The aim of the dissertation thesis was employment and validation of appropriate testing method of transdermal absorption of substances in vitro and the use of this method to obtain new findings on the influence of concentration, dissolvent and form of application, on the measure of dermal absorption of selected PAH representatives. For the testing of transdermal absorption of substances in vitro, the method using static Franz vertical diffusion cell was chosen. As an absorption membrane, full leather of rear surface of the auricle of a domestic pig was used. Content of analytes in samples of receptor fluid was analyzed by gas chromatography with mass spectrometry (GC-MS) and by high performance liquid chromatography with fluorescence detection (HPLC), for which a new methods was developed and...

National Repository of Grey Literature : 140 records found   1 - 10nextend  jump to record:
See also: similar author names
2 Fiala, Zbyněk
Interested in being notified about new results for this query?
Subscribe to the RSS feed.