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Automatic measurement of particles from holograms taken in the combustion chamber of a rocket motorCarrier, Denis Joseph Gaston 12 1900 (has links)
Approved for public release; distribution is unlimited / This thesis describes the procedure used for the automatic measurement of particles from hologram taken in
the combustion chamber of a rocket motor while firing. It describes the investigation done on two averaging
techniques used to reduce speckle noise, capturing the image focused on a spinning mylar disk and software
averaging of several image frames. The spinning disk technique proved superior for this application. The
Kolmogorov-Smirnov two-sample test is applied to
different particle samples in order to find an estimate of
the number of particles required to obtain a stable
distribution function. The number of particles is
calculated and given. The last part of this study shows
real particle distributions in the form of frequency
histograms. / http://archive.org/details/automaticmeasure00carr / Major, Canadian Armed Forces
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Hodnocení provozu malých fotovoltaických elektráren s připojením do sítě nn / Operational Evaluation of the Small Photovoltaic Power Plants Connected to the LV networkČerný, Jaroslav January 2010 (has links)
The objective of this thesis is to perform practical measurements of two small photovoltaic power plants, compare the received results with a theoretical calculation, and evaluate how the two differ from each other. Measured data are divided into three groups. The first group evaluates an overall electric power production in the individual months and compares it with the theoretical presumption that is instrumental to a return of investment calculation. The second group shows us a development of electric power production during characteristic days. We can compare how an ideal day from the FVE production point of view looks like, in other words a sunny and clear-sky day, with the opposite case when it is cloudy and raining all day long. Another extreme is a rapid growth or a performance drop, which can happen in a pho-tovoltaic power plant and a time period when this situation can arise. The third group contains statistic data from the electric power production. They are processed in the form of histograms and polygons of production that graphically illustrate production decomposition into the individual months. These data can be instrumental to a decision making about the form of purchase, whether it is economical for us to use the so called green bonus or not.
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