The orifice-plate flowmeter and ultrasonic flowmeter are used widely for natural gas flowrate measurement, and the measurement accuracy is affected greatly by f
The present work aimed to investigate the transformation behavior and strain recovery characteristics of Ni50.2Ti/Ni51Ti shape memory alloys (SMAs) prepared by
This article is focused on the analysis of the intational cooperation of the Russian petroleum industry and its development trend. Also discussed here are the p