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 “"reference measurements"”.
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Near-Stall Loss Measurements in a CD Compressor Cascade with Exploratory Leading Edge Flow Control
Loss measurements were conducted using a five-hole conical pneumatic probe in a subsonic wind tunnel containing a modeled cascade of controlled diffusion (CD) stator blades. Following reference measurements at high incidence one blade was modified (slotted at the leading edge) in an attempt to …
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Chemometric methods for the analysis of process spectra using minimal reference data
… (independent variables) and the corresponding reference values for the property of interest (dependent variables) must be obtained. For a dynamic system such as a batch or semi-batch chemical reaction, creating such a data set may be very difficult or extremely time consuming. It may not be …
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Effekte von Iloprost auf Hämodynamik und Gasaustausch beim akuten Lungenversagen : eine tierexperimentelle Studie
… A control group with 6 animals served as reference. Measurements of pulmonary gas excange and hemodynamics were taken during the experimental time. Of capital importance is that inhaled iloprost immediately leads to a temporary improvement of hemodynamics and time-delayed to an improvement …
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Development of a reflective stereo slope gauge for the measurement of ocean surface wave slope statistics
… derived and compared to data from simultaneous reference measurements. The two data sets are found to agree well for lower wind speeds, at higher wind speeds significant deviations occur. The causes for these deviations have been identified and taken into account in designing the instrument for …
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Development of an imaging polarimeter for water wave slope measurements
… spectra, determined by integration of the slope measurements, show good agreement with reference measurements with a wave wire. Deviations at low wave frequencies due the small size of the polarimeter footprint can be compensated with a transfer function that is derived from the measurements.
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Accuracy of Unsegmented CBCT in Mesial-Distal Tooth Measurements
… of this study was to determine if MD tooth measurements from unsegemented CBCT scans in the axial, sagittal, and coronal planes or from a panoramic reconstruction correlate and agree with respective measurements made on study models. Material and Methods: Using stone models of 30 subjects, …
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Investigation of the effects of colloidal suspension properties on spatially resolved diffuse reflectance
… parameters from modelled and experimental measurements as well as the first study of particle shape effect on SAR-DRM.;The simultaneous inversion of all three parameters of interest produced results comparable with reference measurements. The study provides a set of method limitations that …
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UAS as an Inventory Tool: A Photogrammetric Approach to Volume Estimation
… inventories have been performed with tape measurements, and in some instances where accuracy is of utmost importance, survey grade GPS and/or terrestrial light detection and ranging (LiDAR) equipment. UAS platforms can bridge a gap between traditional methods by providing accurate volume …
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Accuracy of Ortho Insight 3D Digital Scanner in Mesial-Distal Tooth Measurements
… scanners, accuracy of mesial-distal tooth measurements using the Ortho Insight 3D scanner and its software (Motionview Software LLC) has not been reported. Purpose: The objective of this study was to determine if the MD tooth measurements from the digital models scanned by Ortho Insight 3D …
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The development and application of online modelling methods
… NMR FID spectra were the associated laboratory reference measurements for a series of quality assurance parameters. This information was used to build an online prediction model for the Xylene Soluble (XS) content of polymer pellets. The installation of the online model was accomplished in …
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Integration and Evaluation of Unsteady Temperature Gages for Heat Flux Determination in High Speed Flows
… the gages as a function of time. In both tests, reference Medtherm Schmidt-Boelter gages ensure consistent heat fluxes are applied across all runs. The time response of the entire electrical system was determined by subjecting the gage to a nanosecond scale laser pulse. Two experimental campaigns …
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Energy storage and generation from thermopower waves
… also generate thermopower in excess of previous measurements in carbon nanotubes (CNTs) and therefore could increase figures of merit in a variety of thermoelectric materials. In this thesis, I have developed the theoretical framework to describe the thermal and chemical profiles of propagating …
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Multi-Property Internal Flow Field Quantification using Molecular Filtered Rayleigh Scattering
… for realizing practical, non-intrusive measurements using filtered Rayleigh scattering (FRS) are presented and analyzed for the multi-property quantification of internal flow fields. Validation is challenging in applying computational fluid dynamics (CFD) solutions to real-world …
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Adoption of footprint methods for the quality control of eddy-covariance measurements
… assessment results for micrometeorological measurements with characteristics of the surrounding terrain. The standardised method is easy-to-use in order to encourage its application on a large number of sites. To improve the interpretation of the obtained results, a second objective of this …
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Development of novel methodologies for utilising low-cost sensors for ambient Particulate Matter measurement
… from the particle size and concentration measurements require the application of an additional, often empirical, factor. Not accounting for this factor, results in a poor agreement between PM measurements from an OPC and a reference gravimetric instrument. To address these issues, this …
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Measurement quality in data products for meteorology and climate
L'abstract è presente nell'allegato / the abstract is in the attachment
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Laser Diagnostic Techniques with Ultra-High Repetition Rate for Studies in Combustion Environments
… out. In addition, the system was used for measurements with ultra-high repetition rates for the detection of different flame species in a variety of combustion devices. The high-speed laser system was redesigned for the generation of laser radiation at 355 nm, in addition to the original …
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The measurement of vascular and neurological function in workers exposed to hand-transmitted vibration
… hand-transmitted vibration have been defined by reference to the available literature. For measuring vascular function the methods are: i) measures of the finger systolic blood pressure (FSBP) response to local cooling and ii) measures of the finger skin temperature (FST) response to local …
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Primary stability in cementless total hip replacement: measurement techniques and aided-surgery
… made with the vibration-based tool to two reference measurements made by means of a validated technique, and a validated device. The results highlighted that the most sensitive parameter to stability is the shift in resonance frequency of the stem-bone system, showing high correlation with …