Results 11 to 20 of about 3,461,090 (232)

A flowmeter for measuring the dispersed phase velocity in multiphase flow with non-uniform velocity profile [PDF]

open access: yes, 2008
This study aims to introduce a new technique to measure the velocity distribution of the dispersed component of a vertical, upward, water continuous two-phase pipe flow. Here, it is proposed that measurements of the variation in the local conductance
Al-Hinai, Sulaiyam, Lucas, Gary
core   +4 more sources

Non-invasive velocity and volume fraction profile measurement in multiphase flows [PDF]

open access: yes
Multiphase flow is the simultaneous flow of two or more phases, in direct contact, and is important in the oil industry, e.g. in production wells, in sub-sea pipelines and during the drilling of wells.
Al-Hinai, Sulaiyam
core   +4 more sources

Current Measurement and Velocity Spatial Distribution of Deep Ocean Engineering Basin

open access: yes한국해양공학회지, 2021
To ensure the international competitiveness of the domestic offshore plant industry, a consensus has been formed regarding the requirement for large offshore basins for performing offshore plant performance verification.
Sung-Jun Jung   +7 more
doaj   +1 more source

A Non-Intrusive Impedance Cross-Correlation (ICC) Flow Meter for Dispersed Phase Velocity and Volume Fraction Profile Measurement in Two Phase Flows [PDF]

open access: yes, 2012
This paper describes the design and implementation of an impedance cross correlation flow meter which can be used in solids-water pipe flows to measure the local solids volume fraction distribution and the local solids velocity distribution.
Lucas, Gary, Muhamedsalih, Yousif
core   +3 more sources

A Novel Fiber Optic Sensor for Microparticle Velocity Measurement Using Multicore Fiber

open access: yesApplied Sciences, 2020
A novel fiber optic sensor is proposed to achieve the measurement of single microparticle velocity in a two-dimensional space by translating the cores of a multicore fiber in their respective directions into independent spatial filters.
Xin Ma, Zhao Sun, Haimei Luo, Xinwan Li
doaj   +1 more source

Research on an LEO Constellation Multi-Aircraft Collaborative Navigation Algorithm Based on a Dual-Way Asynchronous Precision Communication-Time Service Measurement System (DWAPC-TSM)

open access: yesSensors, 2022
In order to solve the collaborative navigation problems in challenging environments such as insufficient visible satellites, obstacle reflections and multipath errors, and in order to improve the accuracy, usability, and stability of collaborative ...
Lvyang Ye   +4 more
doaj   +1 more source

A UAV-Based Dye-Tracking Technique to Measure Surface Velocities over Tidal Channels and Salt Marshes

open access: yesJournal of Marine Science and Engineering, 2020
An accurate description of hydrodynamic processes in coastal wetlands is needed to improve their management and conservation. As a consequence, higher knowledge of the connected morphological and ecologic processes is achievable.
Daniele Pinton   +2 more
doaj   +1 more source

A flowmeter for measuring the dispersed phase velocity in multiphase flow with non-uniform velocity profiles [PDF]

open access: yes, 2008
This study aims to introduce a new technique to measure the velocity distribution of the dispersed component of a vertical, upward, water continuous two-phase pipe flow.
Al-Hinai, Sulaiyam, Lucas, Gary
core   +3 more sources

Continuous Analysis of Running Mechanics by Means of an Integrated INS/GPS Device

open access: yesSensors, 2019
This paper describes a single body-mounted sensor that integrates accelerometers, gyroscopes, compasses, barometers, a GPS receiver, and a methodology to process the data for biomechanical studies. The sensor and its data processing system can accurately
Pavel Davidson   +4 more
doaj   +1 more source

Accuracy Analysis of Spectral Velocimetry for the Solar Doppler Difference Navigation

open access: yesIEEE Access, 2021
The accuracy of spectral velocimetry is an important performance index for the solar Doppler difference navigation. In order to analyze the influence of spectral variation on the accuracy of velocity measurement, we establish a velocimetry model based on
Shuying Huang   +3 more
doaj   +1 more source

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