نتایج جستجو برای: analytical tools
تعداد نتایج: 425311 فیلتر نتایج به سال:
This paper provides analytical and graphical tools for the study, performance evaluation, and design of the modern carrier based PWM methods which are widely employed in PWM-VSI drives. Simple techniques for generating the modulation waves of the high performance PWM methods are described. The two most important modulator characteristics, the current ripple and the switching losses are analytic...
Biological taxonomy is at the heart of species identifications. Such identifications are instrumental in biodiversity studies, ecological assessment, and phylogenetic analysis, among other studies. Fuzzy measures and classification integration was used to analyze shape groups of the diatom Asterionella using fuzzy Fourier shape coefficients and fuzzy morphometric measures. Based on this analysi...
Inorganic arsenic possesses the highest toxicity threat amongst all its forms found in natural groundwater and its mobility in aquatic systems and in the soil is of great environmental concern. Besides their toxicity to humans, arsenate and arsenite are highly toxic to plants. Arsenic can only be transformed into a less-toxic material and becomes a permanent part of the environment. Thus, there...
The overall objective of this work has been to adopt new developments and techniques in the area of measurement, modelling and control of fermentation processes. Flow cytometry and software sensors are techniques which were considered ready for application and the focus was set on developing tools for research aiming at understanding the relationship between measured variables and process quali...
Immunochromatographic or lateral flow assays (LFAs) are inexpensive, easy to use, point-of-care medical diagnostic tests that are found in arenas ranging from a doctor's office in Manhattan to a rural medical clinic in low resource settings. The simplicity in the LFA itself belies the complex task of optimization required to make the test sensitive, rapid and easy to use. Currently, the manufac...
This paper deals with the extension of internet-based geographic information systems with functionality for exploratory spatial data analysis (ESDA). The specific focus is on methods to identify and visualize outliers in maps for rates or proportions. Three sets of methods are included: extreme value maps, smoothed rate maps and the Moran scatterplot. The implementation is carried out by means ...
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