نتایج جستجو برای: flowmeter

تعداد نتایج: 1129  

Journal: :Transactions of the Society of Instrument and Control Engineers 1966

Journal: :The Journal of the Acoustical Society of America 1954

Journal: :The Journal of Thoracic and Cardiovascular Surgery 1973

Journal: :Transactions of the Society of Instrument and Control Engineers 1990

Journal: :MATEC web of conferences 2022

This paper deals with the demonstration of non-uniformity velocity profiles in a DN 200 air circular pipe as part development newly designed tomographic ultrasonic flowmeter. The flowmeter should measure flow quality independently. Therefore, different aerodynamic conditions were created by placing mechanical obstacles at entrance measuring chamber, and these experimentally verified. As an expe...

Journal: :Transactions of the Society of Instrument and Control Engineers 1985

Journal: :Review of Scientific Instruments 1961

2010
Se Hee Na Tae Wan Kim Se-Young Oh Tae Dong Kweon Kyung Bong Yoon Duck Mi Yoon

BACKGROUND Greater occipital nerve block is used in the treatment of headaches and neuralgia in the occipital area. We evaluated the efficacy of ultrasonic doppler flowmeter-guided occipital nerve block in patients experiencing headache in the occipital region in a randomized, prospective, placebo-controlled study. METHODS Twenty-six patients, aged 18 to 70, with headache in the occipital reg...

2002
David Wiklund Marcos Peluso

The dynamic response characteristics of flowmeters are often not considered when selecting a flowmeter for use in flow control applications. It is generally assumed that slow controller sample rates make flowmeter response a moot issue. This assumption is shown to be incorrect. It is demonstrated that the use of faster responding flowmeters will always result in reduced process variability, reg...

Journal: :Transactions of the Society of Instrument and Control Engineers 1993

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