Results 11 to 20 of about 3,019,828 (293)

Micro Coriolis mass flow censor with extended range for a monopropellant micro propulsion system [PDF]

open access: yes, 2013
We have designed and realised a micromachined micro Coriolis flow sensor for the measurement of hydrazine (N2H4, High Purity Grade) propellant flow in micro chemical propulsion systems.
Dijkstra, M.A.   +5 more
core   +10 more sources

Near-Surface Defects Identification of Polyethylene Pipes Based on Synchro-Squeezing Transform and Deep Learning

open access: yesApplied Sciences, 2023
To conduct the ultrasonic weld inspection of polyethylene pipes, it is necessary to use low-frequency transducers due to the high sound energy attenuation of polyethylene.
Chaolei Chen   +5 more
doaj   +1 more source

Gas mass-flow meters: Principles and applications [PDF]

open access: yes, 2010
Gas mass-flow meters (GMFM) for original equipment manufacturers (OEM) applications are presently found in a relatively easy and cheap way. GMFM may be applied in a number of different situations but technical formation concerning its principles of ...
Manuel Arlindo Amador de Matos   +2 more
core   +2 more sources

Simultaneous Verification of Multi-Ultrasonic-Flowmeters in Tandem Arrangement for Natural Gas

open access: yesApplied Sciences, 2019
A combined experiment and numerical analysis was performed to determine whether the flow field has a significant impact on the simultaneous verification of multi-ultrasonic flowmeters (UFMs) in tandem arrangement (SVUFMST) and whether the SVUFMST is ...
Tingyang Hong   +6 more
doaj   +1 more source

A Model-Based Analysis of Capacitive Flow Metering for Pneumatic Conveying Systems: A Comparison between Calibration-Based and Tomographic Approaches

open access: yesSensors, 2022
Pneumatic conveying is a standard transportation technique for bulk materials in various industrial fields. Flow metering is crucial for the efficient and reliable operation of such systems and for process control.
Thomas Suppan   +4 more
doaj   +1 more source

Flow Measurement

open access: yesMeasurement + Control, 1985
J Coulthard
doaj   +2 more sources

On the Quantum Jarzynski Identity [PDF]

open access: yes, 2007
In this note, we will discuss how to compactly express and prove the Jarzynski identity for an open quantum system with dissipative dynamics. We will avoid explicitly measuring the work directly, which is tantamount to continuously monitoring the system,
Alicki R   +8 more
core   +3 more sources

Flow measurements [PDF]

open access: yesJournal of the Brazilian Society of Mechanical Sciences and Engineering, 2004
This paper will review several techniques for flow measurements including some of the most recent developments in the field. Discussion of the methods will include basic theory and implementation to research instrumentation. The intent of this review is to provide enough detail to enable a novice user to make an informed decision in selecting the ...
  +6 more sources

A Review of Experimental Techniques for Measuring Micro- to Nano-Particle-Laden Gas Flows

open access: yesApplied Sciences, 2017
Dispersed micro- to nano-particle-laden gas flows are common in many engineering and environmental applications. Characterizing both their dispersed and carrier phase using experimental methods is very important for determining their properties and ...
Chengxu Tu   +3 more
doaj   +1 more source

Study on Deliverability Evaluation of Staged Fractured Horizontal Wells in Tight Oil Reservoirs

open access: yesEnergies, 2021
At present, the existing deliverability evaluation models mainly consider the impact of specific factors on production, and the description of the complex fracture network structure primarily remains at the stage of an ideal dual-pore medium with uniform
Siyu Liu   +7 more
doaj   +1 more source

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