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The CO2 legislation has become more restrictive over time, and to reach the goals imposed by this legislation the automotive industry saw in the hybrid vehicles a solution. Technologies like micro, mild, full and plug in hybrids emerged in order to achieve the imposed goals. This article will...
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This study proposes a new class of exponential-type estimators in simple random sampling for the estimation of the population mean of the study variable using information of the population proportion possessing certain attributes. Theoretically, mean squared error (MSE) equations of the...
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Background: Few studies have systematically examined the efficiency of routine infant immunization services. Using a … average efficiency levels and variation in efficiency within each country, and investigated the properties of published … efficiency estimation techniques. Methods: Using a dataset describing 316 immunization sites we estimated site-level efficiency …
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Research question: Are there any benefits of digitalisation on the efficiency in procurement and how does … digitalisation influences efficiency in procurement? Methods: After creating a questionnaire, a survey via internet was conducted … through various procurement departments of companies about digitalisation in procurement and its relation to efficiency. With …
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