|
| |
|
|
INNOVATION ANGLE GRINDER
Záhejský, Petr ; Janda, Marcel (referee) ; Veselka, František (advisor)
This thesis deals with the innovation of angle grinder and with upgrades of operating parameters, particularly the sliding contact. We count the angle grinders among electric hand tools, which are usually used in hard conditions. In the first time the non-functional examples of angle grinders were studied and their defects and the samples of dust were analysed. The aim of the other parts of this thesis was to measure the basic parameters of angle grinders, mainly the behavior of the comutator lamination. The following part is focused on application of teflon into the sliding contact, summarizes the behavior of the sliding contact with the presence of teflon, and describes the basic properties of teflon. The conclusion describes the practical application of teflon on the sliding contact, which is supported by long-term tests.
|
|
|
Design and realisation of solder-ball mounting device
Bobek, Josef ; Szendiuch, Ivan (referee) ; Nicák, Michal (advisor)
This work deals with issues of design and construction of facilities for mounting solder balls. The first part includes a familiarization with the types, manufacture and assembly of solder balls in practice. The following section includes the actual construction work on the equipment, procedures, considerations and finish work on the plant. The last part provides information about solder balls testing, which are mounted on the FRITSCH station, and compares potential errors.
|
|
|
Analysis and Innovation of DC Motors
Štaffa, Jiří ; Mach, Martin (referee) ; Hájek, Vítězslav (advisor)
This work deals with direct-current electric motor, type P2XR49, by firm ATAS elektromotory Nachod a.s. At first there is an introduction with the principal of running, starting, controlling of revolutions and commutating of direct-current machine. The implementation of direct-current machines contains a construction and a list of machine parts, a type of winding and types of small motors that had been used. It is ordered according to a type of excitation. The work includes detailed procedure of admeasurements of speed-torque characteristic mostly used in practice. There is a large number of machine characteristics. The speed-torque characteristic was measured in constant voltage rating into current rating in the direction of rotation CCW upwardly and CW on strength of current rating. Machine innovation, decrease in volt drop on the commutator, was chosen because commutator is the most problematic part of the machine. If the contact pressure is increased the transition resistance will be lesser and consequently the volt drop on the commutator will be lesser.
|
|
|
Assessment of the design of the new solution sliding contact in electrical machines
Záhejský, Petr ; Mach, Martin (referee) ; Veselka, František (advisor)
The thesis is devoted to assessing the concept of a new solution to the sliding contact in electrical machines. The work is focused mainly on the issue of collector engines, which are almost exclusively used in electric hand tools. Much of the work is devoted to angle grinders, which are usually used in extreme conditions and demands for seamless operation are enormous. In order partial insight into the problems in the introduction are studied phenomena acting on the sliding contact, wear and durability. Then further materials and diagnostic methods for increasing the transfer efficiency brush - commutator brush - ring. The following sections of this thesis is also considered a proposal innovated brush along with the practical verification and evaluation of the suitability of the use of innovative sliding contact.
|
|
| |
|
|
Innovative User Interface for Smartphone
Utěkal, Jan ; Herout, Adam (referee) ; Beran, Vítězslav (advisor)
This bachelor's thesis presents innovative user interface for Symbian S60 5th edition operating system. It describes the process of development of an innovative control of a cell phone. It outlines the tasks and designs the solution from partial thoughts to the final form of a control component. The purpose of the component is simplifying the work with the device and improving its efficiency. The text also covers the implementation details for Symbian C++ programming language and results of experiments on a group of users. The whole topic is enclosed by discussion about the future development of the project and its possible usage.
|
|
|
Pricing of IT Goods
Kacina, Michal ; Janoušek, Vladimír (referee) ; Květoňová, Šárka (advisor)
The thesis contains the theoretical basis for study of possibilities of pricing information goods. The source areas are microeconomics, marketing, competitive advantage and economics of information goods. The model of market is created with constraints defined on the ground of theoretical basis. The thesis analyzes requirements that define the system that supports the choice of pricing strategy. It includes detailed design of the prototype of such system. The prototype is designed with robustness because of the future improvements. The design describes the prototype's input parameters and their transformation into useful outputs that cover basic characteristics of information goods. The designed prototype is implemented. The thesis includes demonstration of the prototype and possible directions for improvements that lead to validity of proposed model of market.
|
|
|
Proposal of an Educational Programme for Employees in the Course of Implementation of Bar Codes at the UHS JAKOS Company
Slavíková, Jana ; Uhlířová, Jana (referee) ; Konečná, Zdeňka (advisor)
This thesis deals with proposal for an education program for employees of UHS JAKOS, a.s. which implemented a new information system 3 year ago and because of this they are planning to implement a bar codes. The analysis was realized by questionnaire survey between the employees who will work with the bar codes. The thesis is divided into 3 sections. The first section is theoretical and describes an education as process of change during implementing the bar codes. Next is analysis section which describes a current situation in the company by questionnaire. At the end it focuses on proposal of education program which will get easy the implementing of code bars.
|
|
|
Proposal for New Information System in the Company
Kunc, Tomáš ; Navrátil, Jaroslav (referee) ; Rompotl, Jaroslav (advisor)
The main theme of this diploma thesis is the drafting of the implementation information system for company, which is defined by the individual's requirements and objectives for which it is drawn up. In the theoretical part deals with basic information about the innovation, especially implementation information system for company, based on the theoretical knowledge and the information collected. The practical part is directly focused on implementation information system including economic assessment and analysis of risk join with this innovation process.
|
guest ::
