Results 41 to 50 of about 56,945 (229)

Image processing technique for hydraulic application

open access: yesТруды Института системного программирования РАН, 2018
In this paper, we present techniques Surface Flow Image Velocimetry (SFIV) that is a practical extension of Particle Image Velocimetry method (PIV). In particular, this technique is to evaluate the behavior on the surface flow for complex flow.
J. Tellez-Alvarez, M. Gomez, B. Russo
doaj   +1 more source

Effect of leading-edge tubercles on the flow over low-aspect-ratio wings at low Reynolds number

open access: yesTheoretical and Applied Mechanics Letters, 2023
Two-dimensional time-resolved particle image velocimetry (TR-PIV) and stereographic particle image velocimetry (SPIV) techniques were used to investigate the effect of leading-edge tubercles on the flow over low-aspect-ratio wing models.
Pengxin Yang, Yichen Zhu, Jinjun Wang
doaj   +1 more source

Flexible Dielectric Acoustic Resonator Patch for Tissue Regeneration

open access: yesAdvanced Materials, EarlyView.
A flexible dielectric acoustic resonator patch enables MHz‐range ultrasound generation through resonance amplification without using piezoelectric materials. Conformal integration on a curved substrate allows efficient acoustic delivery to tissue‐mimicking environments.
Donyoung Kang   +7 more
wiley   +1 more source

Experimental Study on the Influence of Bulbous Bow Form on the Velocity Field around the Bow of a Trimaran Using Towed Underwater 2D-3C SPIV

open access: yesJournal of Marine Science and Engineering, 2021
In this study, particle image velocimetry was applied to measure the flow field around the bow region of a trimaran with different appendages. The dimensionless axial velocity u/U in test planes 1 and 2 of the testing model was measured by using a towed ...
Rui Deng   +3 more
doaj   +1 more source

Experimental study of the flow field in patient specific lower airways [PDF]

open access: yes, 2009
In this study Particle Image Velocimetry (PIV) is used to visualize and measure airflow in the lower airways. Using Rapid Prototyping Manufacturing (RPM) technology, a hydraulic in vitro model was developed and constructed.
Claessens, Tom   +4 more
core  

Deposition of particle pollution in turbulent forced-air cooling [PDF]

open access: yes, 2020
Rotating fans are the prevalent forced cooling method for heat generating equipment and buildings. As the concentration of atmospheric pollutants has increased, the accumulation of microscale and nanoscale particles on surfaces due to advection-diffusion
Stafford, Jason, Xu, Chen
core   +3 more sources

Elastomeric Micro‐Balloons for Remote Control of Cerebral Blood Flow and Real‐Time In vivo Imaging of Rodent Brain Response to Hypoperfusion

open access: yesAdvanced Materials, EarlyView.
This study reports the fabrication of MRI‐compatible elastomeric micro‐balloons via a multi‐step bubble casting process, where the monolithic elastomeric wall is selectively stiffened for reversible and controlled inflation and elasticity, depending on the target vessels for graded occlusion of cerebral arteries.
Jong Bin Kim   +10 more
wiley   +1 more source

The effect of terminal impedance on aortic morphology and hemodynamics: an in vitro phantom study using flow field visualization

open access: yesFrontiers in Bioengineering and Biotechnology, 2023
To investigate the risk factors for aortic dissection tearing, we fabricated a simplified patient-specific aortic silicone phantom using the brush-spin-coating method.
Huimin Chen   +6 more
doaj   +1 more source

Multi-camera digital holographic PIV: Tomographic DHPIV [PDF]

open access: yes, 2007
The wide scale application of digital holographic particle image velocimetry (DHPIV) as a three-component three-dimensional (3C-3D) velocity field measurement tool is current restricted by the limited size and resolution of commercially available CCD ...
Atkinson, C. H., Soria, J.
core   +1 more source

A method for three-dimensional particle sizing in two-phase flows [PDF]

open access: yes, 2004
A method is devised for true three-dimensional (3D) particle sizing in two-phase systems. Based on a ray-optics approximation of the Mie scattering theory for spherical particles, and under given assumptions, the principle is applicable to intensity data
Gharib, Morteza, Pereira, Francisco
core   +1 more source

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