Results 91 to 100 of about 138,530 (207)

Numerical simulation of cavitation threshold in water and viscoelastic medium based on bubble cluster dynamics

Ultrasonics Sonochemistry
The ultrasonic cavitation threshold is a significant area of research in therapeutic ultrasound. This study conducts a numerical simulation of the ultrasound cavitation threshold by solving the dynamic equations of bubble clusters composed of bubbles ...
Xiaozhuo Shen, Pengfei Wu, Weijun Lin
doaj   +1 more source

Experimental investigation on cavitating and self-sustained oscillating flow in a horizontal axisymmetric cavity [PDF]

International Journal of Fluid Engineering
An experimental study is performed to reveal the flow phenomena and the oscillation characteristics of water jet flow through a horizontal axisymmetric cavity. The test conditions include different Reynolds numbers and various cavity lengths.
Yuchuan Wang, Bifeng Li, Lei Tan, Chuanchang Gao, Sebastián Leguizamón   +4 more
doaj   +1 more source

Synchrotron x-ray imaging of acoustic cavitation bubbles induced by acoustic excitation

, 2017
The cavitation induced by acoustic excitation has been widely applied in various biomedical applications because cavitation bubbles can enhance the exchanges of mass and energy.
Park, H.W., Lee, S.J., Jung, S.Y., Park, S.H.   +3 more
core   +1 more source

Chloride‐Mediated Activation of Aluminum‐Alloyed Liquid Metal Anodes for Stretchable Asymmetric Energy Storage

Advanced Energy Materials, EarlyView.
A gallium‐centered cell pairs an aluminum‐alloyed GaIn anode with a GaOOH cathode in a chloride‐rich water‐in‐ionic‐liquid electrolyte. Chlorogallate ions dissolve the native oxide that normally seals the liquid metal, and preferentially reduce indium seeds to oxide‐free clusters on which gallium plates and strips reversibly.
Adit Gupta, Yufei Zhang, Jae Uk Choi, Pooi See Lee   +3 more
wiley   +1 more source

Acoustic cavitation, bubble dynamics and sonoluminescence

Ultrasonics Sonochemistry, 2007
Basic facts on the dynamics of bubbles in water are presented. Measurements on the free and forced radial oscillations of single spherical bubbles and their acoustic (shock waves) and optic (luminescence) emissions are given in photographic series and diagrams.
Lauterborn, Werner, Kurz, Thomas, Geisler, Reinhard, Schanz, Daniel, Lindau, O.   +4 more
openaire   +4 more sources

Evolution and implosion of cavitation bubbles towards solid surface

, 2022
Cavitation bubbles generated via laser-induced breakdown are investigated experimentally. The present work focuses on the direction of the first bubble collapse near a solid surface in distilled water.
Vaclav Kopecky, Michal Kotek, Petr Schovanec, Darina Jasikova   +3 more
core   +1 more source

Activation of Metal Complexes With Ultrasound Waves for Targeted Anticancer Therapy

Angewandte Chemie International Edition, EarlyView.
Ultrasound enables non‐invasive activation of metal‐based therapeutics deep within tumors. Acoustic cavitation can drive sonodynamic reactive oxygen species generation or mechanochemical metal–ligand bond dissociation, enabling controlled release of bioactive payloads.
Félix Grosjean, Nicolás Montesdeoca, Gilles Berger, Johannes Karges   +3 more
wiley   +1 more source

Bacterial backpacks for targeted delivery of piezoelectric nanoparticles to enhance sonodynamic immunotherapy

BMEMat, EarlyView.
Leveraging bacterial hypoxia targeting, KBTO NPs accumulate at the tumor site. Under the ultrasound irradiation, KBTO NPs produce reactive oxygen species to kill tumor cells and eliminate bacteria, preventing overgrowth and inflammation. The lysed bacteria act as antigens to trigger antitumor immunity and further enhanced by the immune checkpoint ...
Chongyang Liu, Haohui Zhu, Huaibin Yu, Xijun Zhang, Zhiqin Lei, Wenjing Xu, Xinyu Zhao, Ming Wu, Long Yang, Juanjuan Liu, Zhengbao Zha, Xinghui Si, Jianjun Yuan   +12 more
wiley   +1 more source

Cavitation inception from bubble nuclei [PDF]

Interface Focus, 2015
Abstract The tensile strength of ordinary water such as tap water or seawater is typically well below 1 bar. It is governed by cavitation nuclei in the water, not by the tensile strength of the water itself, which is extremely high. Different models of the nuclei have been suggested over the years, and experimental investigations of ...
openaire   +2 more sources

Water Electrolysis Technologies for Extraterrestrial Water Resource Conversion

EcoEnergy, EarlyView.
This paper reviews four water electrolysis technologies for extraterrestrial water conversion: alkaline water electrolysis, proton exchange membrane water electrolysis, solid oxide water electrolysis, and anion exchange membrane water electrolysis. It elaborates on their mechanisms, components, and integration, highlighting challenges such as water ...
Yawen Jiang, Yuan Zhao, Lin Zu, Lili Ling, Yongwei Zhao, Jun Di, Pin Song   +6 more
wiley   +1 more source