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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
51

Aplikace fuzzy logiky pro určení priority testů / The Application of Fuzzy Logic for Test Case Prioritization

Starostová, Andrea January 2014 (has links)
Diplomová práce je zaměřena na stanovení priority testovacích případů s využitím fuzzy logiky. Vhodným přístupem k získání výstupu na základě definovaného vstupu a stanovených pravidel byl zvolen fuzzy model přiřazující prioritu testovacím případům. K dosažení cíle práce byla nejprve stanovena kritéria, parametry a poté určena jejich váha pro jednotlivé testovací případy. Na závěr jsou vyhodnocena vstupní data s využitím řešení v programu MS Excel a MATLAB.
52

Nová metodika testování na lince / New testing method on production line

Zuhla, Michal January 2011 (has links)
This Diploma thesis is aimed at testing centre at the assembly line for boarding steps and ramps for rail vehicles. This project describes various activities and issues associated with the testing of these products. The project also evaluates current testing processes and proposes optimal future state and recommends solutions necessary to achieve this. A new design of a testing centre is also developed.
53

Návrh metody pro testování elektricky asistovaných turbodmychadel / Design of Calculation Method for Electrically Assisted Turbochargers

Staněk, Lukáš January 2013 (has links)
The Diploma thesis deals with the testing of electrically assisted turbochargers. Aim of this work is to apply the established way of the performance testing of conventional turbochargers for electrically assisted turbocharger. Part of this work is to create a program for the calculation of the observed characteristics of the turbocharger. The program is extended to the characteristics of the generator for electrically assisted turbocharger. The program will serve as a basic for control the data for tested motorsport applications.
54

Konstrukce stendu pro dynamické testování protéz dolních končetin / Mechanical design of stend for lower limbs prostheses dynamic testing

Taufer, Tomáš January 2015 (has links)
This work describes design and realization of testing device for dynamic tests of foot prosthesis, made by methods of Rapid prototyping. Primary objective of design is to imitate the load on prosthesis during human gait. This task is accomplished by swing motion of prosthesis inside the frame of device during the loading of heel and tiptoe. Loading components can be removed and changed so the device can be used for different measurement like walking on an inclined plane. The result of this work is fully functional device including control program with many options to control the test. The result of test is to decide whether the foot prosthesis withstands the set of cyclic loads. The area of development of prosthesis by additive methods is young for the time being. It stands out especially with different materials, design, structure of prosthesis and fast process of production. Therefore this device can be used for testing of fatigue life of prosthesis made by additive methods.
55

Návrh software jednoúčelového stroje pro výrobní testy / Design of software single purpose machine for manufacturing test

Janoušek, Roman January 2015 (has links)
This diploma thesis deals with design and implementation of software for control of manufacturing tests of pneumatic proportional valve Festo MPYE. The single-purpose testing device consists of a DAQ device, a pressure sensor and of electrically operated pneumatic valves. In the introduction of this thesis are outlined aims of thesis followed by introduction to single-purpose assemblies commonly used in practice. The main part of this thesis deals with analysis and with solving the issues of assigned product testing. The designed and implemented modular software for control of manufacturing tests of assigned product is presented as an outcome and this software is easily adjustable for tests of a different product. In the conclusion are assessed achieved aims.
56

Univerzální platforma pro měření inerciálních a tlakových senzorů / Universal platform for measurement of inertial and pressure sensors

Usnul, Jan January 2017 (has links)
Author describes the creation of software for the initial sensor test platform and controll computer. The platform can measure inertial and pressure sensors regardless their specific type. Measurement is provided by automatic test which is defined by the user. Also, the author describes the creation and implementation of communication protocols between control software (on Windows platform) and test platform (embedded C).
57

Selftest pro automatický průmyslový tester / Self-Test for Automatic Industrial Tester

Kyselý, Tomáš January 2017 (has links)
Work discusses about the test station in NXP Semiconductors Company in Rožnov pod Radhoštěm. It describes first the test station itself and its possibilities in software libraries testing. Second it describes automatic selftest of this station and sub-steps of this selftest. This work is also used as a documentation for company needs. KEYWORDS
58

Inteligentní testovací procedury nízkonapěťových trakčních pohonů s asynchronními motory / Intelligent Test Procedures Low-Tension Traction Drives with Induction Motors

Nesvadba, Martin January 2011 (has links)
This dissertation thesis is focused on the problem of the noise measurement and construction of the noise test station what was also interest of my employer - company Kollmorgen,sr.o. This testing station should be located directly in the assembly line with target of the noise motor s identification. On base of these measured values and implemented intelligent testing procedures, we should be able to identify real root cause of the noise The noise of electrical machines is actual issue. There is a big pressure for low-noise driving system construction created by many end-customers. We can achieve these requirements with 100% quality of all parts of current product, implementation of noise testing station and also with design optimization of the current product. Basic testing procedures of induction motors were showed in first part of this work (chapter 4.1.). These procedures are able to provide good picture of the motor condition. For the motor noise measurements was constructed a workplace including noise box with acoustical absorption up to 30dB what allowed the workplace implementation directly into the motor assembly line. Testing techniques and frequency analysis procedures were implemented sequentially with the target of the test evaluation improvement. After the detailed analyze of the motor noise root causes was performed check of the current motor design with respect of the “noiselessness” motor construction principles. As next step was created the motor prototype with optimized construction with target of the motor noise reduction. This optimized motor was tested and compared with standard motor design.
59

Optimalizace testu digitálního obvodu multifunkčními prvky / Digital circuits test optimization by multifunctional components

Stareček, Lukáš January 2012 (has links)
This thesis deals with the possibilities of digital circuit test optimization using multifunctional logic gates. The most important part of this thesis is the explanation of the optimization principle, which is also described by a formal mathematical apparatus. Based on this apparatus, the work presents several options. The optimization of testability analogous to inserting test points and  simple methodology based on SCOAP is shown. The focus of work is a methodology created to optimize circuit tests. It was implemented in the form of software tools. Presented in this work are the results of using these tools to reduce the test vectors volume while maintaining fault coverage on various circuits, including circuits from the ISCAS 85 test set. Part of the work is devoted to the various principles and technology of creating multifunctional logic gates. Some selected gates of these technologies are subject to simulations of electronic properties in SPICE. Based on the principles of presented methodology and results of multifunctional gates simulations, analysis of various problems such as validity of the modified circuit test and the suitability of each multifunctional gate technology for the methodology was also made. The results of analysis and experiments confirm it is possible for the multifunctional logic gate to optimize circuit diagnostic properties in such a way that has achieved the required circuit test parameter modification with minimum impact on the quality and credibility of these tests.
60

Simultánní intervaly spolehlivosti duální k postupným metodám vícenásobného srovnávání / Simultaneous confidence intervals dual to stepwise methods of multiple comparison

Moravec, Jan January 2015 (has links)
The central theme of this thesis is the construction of simultaneous confidence regions (SCR) corresponding to stepwise multiple comparison procedures (MCP). The first chapter is devoted to the theory of multiple comparisons, including the class of closed testing procedures which contains every MCP that strongly con- trols the familywise error rate. The second chapter is concerned with the gene- ral principle of construction of SCR corresponding to closed testing procedures. These general results are used in the third and the forth chapter for deriving the SCR corresponding to a subclass of closed testing procedures which are based on weighted Bonferroni tests. The SCR corresponding to the Holm, the Holm(W), the fixed-sequence and the fallback MCP are derived explicitly. The theoretical results are numerically illustrated on a bioequivalence study. In the fifth chapter we briefly discuss the SCR corresponding to the Hommel, the Hochberg and the step-down Dunnett MCP.

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