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Building and control of 5-axis milling machines
Hekrle, Pavel ; Marek, Tomáš (referee) ; Holub, Michal (advisor)
This bachelor thesis deals with detailed description of acceptance tests of machining centers. The first part contains segmentation of geometric tolerances, which are used for geometric accuracy tests. A large part of this thesis is dedicated to these tests. The next part includes phases of preparations for acceptance tests as well as segmentation and progress of these tests. One part of the thesis is devoted to machine alignment. The last chapter contains detailed description and principle of some modern measuring devices which are used for acceptance tests.
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Building and control of 5-axis milling machines
Hekrle, Pavel ; Marek, Tomáš (referee) ; Holub, Michal (advisor)
This bachelor thesis deals with detailed description of acceptance tests of machining centers. The first part contains segmentation of geometric tolerances, which are used for geometric accuracy tests. A large part of this thesis is dedicated to these tests. The next part includes phases of preparations for acceptance tests as well as segmentation and progress of these tests. One part of the thesis is devoted to machine alignment. The last chapter contains detailed description and principle of some modern measuring devices which are used for acceptance tests.
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Building and control of 5-axis milling machines
Hekrle, Pavel ; Marek, Tomáš (referee) ; Holub, Michal (advisor)
This bachelor thesis deals with detailed description of acceptance tests of machining centers. The first part contains segmentation of geometric tolerances, which are used for geometric accuracy tests. A large part of this thesis is dedicated to these tests. The next part includes phases of preparations for acceptance tests as well as segmentation and progress of these tests. One part of the thesis is devoted to machine alignment. The last chapter contains detailed description and principle of some modern measuring devices which are used for acceptance tests.
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Quality of mammographic images and mammographic projections
VOSTŘÁKOVÁ, Michaela
Mammographic examination is highly important considering that breast cancer is the most frequent carcinoma in women in the Czech Republic. Of course, the quality of mammographic images depends on all parts of the imaging chain including a proper scanning technique and proper positioning of the patient as the breast should be sufficiently captured in the highest extent possible, including the pectoral muscle. Proper exposure and general quality of the images are also necessary in order to show discrete calcifications that may be the single sign of any pathological process in the breast. This thesis is aimed at evaluating the quality of mammographic imaging at two screening departments. One department has undergone complete digitization, the other applies classical film-based mammography. Mammography devices were replaced with digital ones at the film-based mammography department during this research. The result of this work consists in comparing the imaging quality at both these departments, completed with comparison of film-based and digital mammography at the department where the devices were replaced.
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