|
|
Tool design for production of springs for an organ
Svoboda, Jakub ; Osička, Karel (referee) ; Kalivoda, Milan (advisor)
This thesis focuses on a design for a machined bending fixture to enable the production of valve springs for organs. The reason for choosing this topic was the need to perfect the existing process of making organ springs. The main problem with the original fixture was the poor quality of the spring thread. Valve springs have varying properties and parameters that determine the requirements for the fixture. A 3D model of the complete fixture was created based on the author’s ideas and these requirements. Calculations were then made for a spring of specific dimensions. These calculations showed that the proposed size of the crank is adequate to enable it to be turned by the human hand. A force of 28 N is required at the end of the crank arm to exert the bending torque required to properly thread the spring. This figure is lower than the tabular values for the general European working population. This implies that the crank arm has the designed proportional length. To calculate the same specific spring and verify the function of the fixture, software simulation was also used. When creating the model, in addition to the calculations and simulation, an experiment was also conducted to verify the function and the main idea of the fixture, which is to bend with additional tensile stress. The result of the experiment was a spring that was subsequently compared with a spring produced using the original fixture. The marked difference in the appearance of the thread proved that the author’s idea was correct. The entire fixture and its components are described in detail in the thesis. The comprehensive design of the fixture in the form of a 3D model is prepared for consultation in an organ-making workshop and then for use in production.
|
|
|
Machining technology with the necessity of manual work
Svoboda, Jakub ; Kupčák, Radim (referee) ; Kalivoda, Milan (advisor)
Manual work is still necessary and often irreplaceable. In most cases, it is combined with machine production. As an example of such work we have chosen the production of tin lead alloy organ pipes, which encompasses several machining processes. All aspects of production were analyzed, including specification of the materials used and the various production processes. A pipe was produced according to these specifications for illustration. Individual chapters presented special manual tools and specific machinery. The difficulty and originality of the given production was outlined. This is professional work requiring manual dexterity, logical thought, attention to detail and an artistic spirit. During production we obtained an image showing a part of the cross-section of the pipe perpendicular to its axis. The image shows the correct shape of the soldered joint and the tangential connection of both sides of the sheet. Several aspects of the pipe were evaluated. The final chapters include feedback from customers and a general assessment of this particular work.
|
|
|
Detector of the Human Head in Image
Svoboda, Jakub ; Orság, Filip (referee) ; Goldmann, Tomáš (advisor)
Detection of human head is an important part of person detection and identification algorithms. This thesis is focused on the detection of human head with methods based on neural networks. The majority the of conventional detectors can identify objects within a limited range of positions, whereas models based on neural networks offer a more robust approach. In this thesis we trained the current state-of-the-art models and compared their accuracy and speed. The most accurate model proved to be RetinaNet which has reached 85.15% AP. This detector can be used to improve current available algorithms for person detection, identification and tracking.
|
|
|
Business Plan for Establishment of the Small Company
Svoboda, Jakub ; Konečný, Marek (referee) ; Koudelková, Petra (advisor)
My Bachelor thesis is dealing with formation of a business plan for a small enterprise. The line of business is production of keys, retail of electrical appliances and satellite technology assembly. The business plan concerns the transition from natural person – a self-employed person to legal person – a limited liability company. The aim of my thesis is to find out whether this business plan is worth implementing and if it presents a positive contribution to the firm.
|
|
|
Application for Recognition of People by Face
Svoboda, Jakub ; Orság, Filip (referee) ; Goldmann, Tomáš (advisor)
Person identification has in the recent years gained notoriety as one of the most powerful ways of extracting information from image data. This thesis is focused on the task of human identification from facial photographs. To solve this task, we employ algorithms based on neural networks, which produce more robust results than traditional algorithms. In this thesis, we studied the common approaches for solving this problem and based on the gathered knowledge we created an architecture of a neural network trained to tackle the task of human identification and verification based on facial photographs. We have then further improved the model architecture and the training process by performing various experiments and observing the results. The final model has reached an accuracy comparable to other state-of-the-art models. Furthermore, we created a desktop application to demonstrate the results visually and to enable easier manipulation with the identity database. The knowledge gathered in this thesis can be used for improvements of current identification models or models modified for solving similar tasks.
|
|
|
Design of Process Management Elements in the International Consulting Company
Svoboda, Jakub ; Špetla, Ondřej (referee) ; Videcká, Zdeňka (advisor)
The thesis is focused on the identification of service and administrative processes and sub processes inside the chosen company and proposal of their possible separation and outsourcing using the Business Process Management methods. Potential changes should be aimed to release capacity of the monitored team of the company and optimize their processes and related capacity during busy season and also from the long term perspective. The company set the conditions for potential changes by keeping current standards about quality of products and services and keeping current rules for client communication. Additionally company expects decreasing of personal costs related to inquired services.
|
|
| |
|
|
Superstructure Key Electromechanical System
Svoboda, Jakub ; Petr, Škrabánek (referee) ; Kříž, Jiří (advisor)
This bachelor thesis deals with creating interfaces for electromechanical key system according to the requirements of Bosch Diesel s.r.o. from Jihlava. This extension should record the person responsible for the premises in the race and you warrant to approve access to these areas. This issue is further addressed in three parts, which are the theoretical, analytical and design part. The theoretical part deals with the issue on the basis of literary sources. Part of the analysis also examines the current status of key system, its information capabilities and weaknesses internal needs of the company. The most important part of the design work is concentrated on the solution to this problem. The result is an extension of a key system, meeting the requirements of the company for the design change access permissions registered by the persons responsible for the premises.
|
|
| |
|
|
Close Future
Svoboda, Jakub ; Šrámek,, Jan (referee) ; Zet, Martin (advisor)
For Bachelor thesis I chose a pretty hot topic, which currently Europe by storm and it is a migratory crisis. To handle this issue, I decided to use the form of the short film genre of post-apocalyptic movie.
|
guest ::
