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Information × Registration Number 0218U007933, 0117U004011 , R & D reports Title Investigation of components of uncertainty of medium flow in view of roughness of pipeline internal surface popup.stage_title Head Lesovoi Leonid Vasyliovich, Registration Date 27-12-2018 Organization Lviv Polytechnic National University, Department of Automation of Heat and Chemical Processes popup.description2 The method of investigation the components of uncertainty of gas flowrate with consideration the roughness of pipeline internal surface has been developed. According to the results of this technique a new method of direct measurement of the roughness of pipeline internal surface has been developed; the algorithm of gas flowrate measurement is developed taking into account the roughness measured in real time; the mathematical models of uncertainty of the measurement of the gas flowrate taking into account roughness are improved; these recommendations for the elimination of the components of uncertainty that arise in different ways of measuring the roughness of pipeline internal surface Product Description popup.authors Слабик Оксана Михайлівна Химко Ольга Мирославівна Чабан Богдан Іванович popup.nrat_date 2020-04-02 Close