Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 19 of 19 for “"automated measurement"”.
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Manual and Automated Measurement of the Chemical Oxygen Demand (COD) of Wastewaters
… the time parameter. A twofold requirement for an automated COD. system is outlined. Experiments with a commercial continuous flow system showed it to be unsuitable for the both requirements. Work with a hybrid part dioscrete, part continuous flow system is described. Some useful informations was …
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An implementation of sine wave test setup for automated measurement of high-performance analog-to-digital converters
… them. Next, the LabVIEW program written for measurement automation, instrument control, data acquisition, and postprocessing is discussed in detail. Both custom-written code and modification of vendor-provided code are documented. Each of the steps in program flow is illustrated in the form …
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Automated Measurement of Midline Shift in Brain CT Images and its Application in Computer-Aided Medical Decision Making
… Intracranial Pressure (ICP). The midline shift measurement can be divided into three steps. First the ideal midline of the brain, i.e., the midline before injury, is found via a hierarchical search based on skull symmetry and tissue features. Second, the ventricular system is segmented from the …
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An Automated Measurement And Analysis System For Resistivity-Based Monitoring Of Chemical Self-Assembly On Thin Gold Films
… DNA strands on silicon wafers, the automated system used for measurement and data analysis. A review of the available and relevant literature is presented as well as a discussion of conclusions regarding the observed behavior of the gold film resistivity in light of the available …
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A Study of Electron Traps in Vapor Phase Epitaxial Gallium-Arsenide Grown in the Presence of Oxygen (Dlts, Deep Level Transient Spectroscopy, Semiconductors, Defects)
A detailed analysis of the measurement technique known as constant capacitance deep level transient spectroscopy is presented, which includes an accurate treatment of large and inhomogeneous defect densities, and which allows a precise determination of deep level concentrations and activation …
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Free-field reciprocity calibration of condenser microphones in the low ultrasonic frequency range
This thesis describes the development of a measurement set-up for the free-field calibration of 1/4-inch condenser microphones by the reciprocity method, and enables traceable measurements of the free-field sensitivity of condenser microphones in the low ultrasonic frequency range from 20 kHz to …
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A study of electron traps in vapor phase epitaxial gallium arsenide grown in the presence of oxygen
A detailed analysis of the measurement technique known as constant capacitance deep level transient spectroscopy is presented, which includes an accurate treatment of large and inhomogeneous defect densities, and which allows a precise determination of deep level concentrations and activation …
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Characterization of Novel Pyroelectrics
… possible. A precise quantification, i.e. the measurement of the pyroelectric coefficient p, is inevitable to assess the performance of a material. Hence, a comprehensive overview is provided in this work, which summarizes and evaluates the available techniques to characterize p. A setup …
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Deriving new measurements for real-time reactive systems
… their life cycle. The integration of the quality measurement into the development framework provides feedback to the system developers in order to effectively control the development processes and to obtain high reliability of a final product. Thus, quality control is a must when safety-critical …
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Development of micro-thermoelectric generator (µ-TEG) for powering wearable devices
… development, and implementation of a fully automated measurement system tailored for the characterization of micro-thermoelectric devices operating near room temperature based on the ASTM D5470-06 standard. The developed system is fully controlled by a LabVIEW program, which provides precise …
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Bandwidth scaling behavior in wireless systems : theory, experimentation, and performance analysis
… This thesis: describes the development of an automated measurement apparatus capable of characterizing wideband channels up to 16 GHz; formulates a framework for evaluating the performance of wireless systems in realistic propagation environments; and applies this framework to sets of channel …
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Industrial applications of flow injection analysis
… A liquid phase FIA system was developed for automated measurement of hydroperoxides in oil, fat, and polyol samples. Lipid peroxidation has received much attention because of toxicities, bitter tastes, and off flavors produced during lipid oxidation. The method is based on the oxidation of …
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Characterisation of primary cilia in human hypothalamic neurons
… we developed an image analysis pipeline for the automated measurement of changes in length of primary cilia in neurons derived from the cilia-targeted hiPSC line. We used this pipeline to screen for annotated compounds with known targets active on the CNS and identify some that produced a change …
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Engineering of integrated devices on electro-optical chip: grating couplers, algorithms, and switches
… engineering of integrated optical devices, and measurement methods that enable understanding of integrated device behavior. The highly unidirectional uniform optical grating couplers are simulated, and compared experimentally with typical uniform gratings on the same chip. Here, the method of …
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Monitoring railway rail roughness using on-train vibration measurements
… are required to calculate roughness from the measurements. This thesis proposes and evaluates three techniques aiming to solve some of the specific problems affecting the measurements. Firstly, a procedure is developed to derive the wavelength spectrum of rail roughness from axle-box …
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Emphysema Quantification using Low Dose Chest CT : Efficacy of Follow up Examinations in Asymptomatic Smokers
… was performed by using workstation with the automated measurement software. To detect the emphysema, threshold values (-970HU ~ -900HU) were selected with 10HU interval. In each threshold, emphysema index, which was defined as the percentage of low attenuated areas and total lung volume, was …
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Diagnostika výkonového měniče za chodu
Dizertační práce se zabývá problematikou predikce havárie výkonového tranzistoru IGBT v~pulzním měniči na základě měřitelných změn vybraných parametrů (tzv. trendových veličin) vlivem procesu degradace tranzistoru během doby životnosti. V~dizertační práci je nejprve shrnut současný stav této …
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Reactive Trace Gases within and above a Grassland Canopy: Challenges for Flux and Transport Process Determination
… dynamic chamber technique for routine O3 flux measurements at low canopy ecosystems and (iii) the analysis of chemical flux divergence and NOx canopy reduction. The quantification of in-canopy transport characteristics is of a major importance for the investigation of sources, sinks and net …