Results 81 to 90 of about 187,035 (226)

New insights on the cavitation development and the role of bubbles in Micro-Venturi channels

Ultrasonics Sonochemistry
This study investigates hydrodynamic cavitation (HC) inception and development in micro-Venturi channels, focusing on the mechanism that drives spatially irregular cavitation events. The study reveals that cavitation regeneration is primarily governed by
Mohammadamin Maleki, Abhinav Priyadarshi, Jolyon Cleaves, Erçil Toyran, Ali Kosar, Iakovos Tzanakis, Morteza Ghorbani   +6 more
doaj   +1 more source

Comparison of cavitation bubbles evolution in viscous media

EPJ Web of Conferences, 2018
There have been tried many types of liquids with different ranges of viscosity values that have been tested to form a single cavitation bubble. The purpose of these experiments was to observe the behaviour of cavitation bubbles in media with different ...
Jasikova Darina, Schovanec Petr, Kotek Michal, Kopecky Vaclav   +3 more
doaj   +1 more source

Experimental study of laser-induced bubble collapse near a rigid wall based on the double-exposure method [PDF]

International Journal of Fluid Engineering
Capturing and studying the process of cavitation bubble collapse can help elucidate the mechanism of cavitation erosion. In this paper, a high-spatiotemporal-resolution double-exposure photographic method is used to investigate the collapse of laser ...
Haigang Wen, Yurong Sun, Siyuan Geng, Zhifeng Yao, Qiang Zhong   +4 more
doaj   +1 more source

Mechanism of the Efficiency Drop due to traveling Bubble Cavitation [PDF]

The setting level of a hydraulic machine, specially for low head machines, is decided with respect to the possible alteration of the efficiency due to the cavity development.
Henry, Pierre, Avellan, François, Arn, Christophe   +2 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

Non-Spherical Cavitation Bubbles: A Review

Fluids
Cavitation is a phase-change phenomenon from the liquid to the gas phase due to an increased flow velocity. As it causes severe erosion and noise, it is harmful to hydraulic machinery such as pumps, valves, and screw propellers.
Boxin Jia, Hitoshi Soyama
doaj   +1 more source

Numerical Investigation on the Cavitating Flow and the Cavitation-induced Noise in the Pump-jet Propeller [PDF]

Journal of Applied Fluid Mechanics
The noise hazard posed by cavitation in pump-jet propellers is a significant concern during oceanic operations. This study evaluates the cavitation performance and associated noise characteristics of pump-jet propellers in underwater conditions, further ...
P. Zhang, J. Yuan, Y. Fu, X. Hou, J. Hao
doaj   +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

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

Niobium‐Based Chalcogenides as Emerging Electrode Materials for Rechargeable Batteries

EcoEnergy, EarlyView.
This review highlights recent advances in Nb‐based TMCs, covering their structure‐property relationships, synthesis strategies, electrochemical mechanisms, and energy‐storage applications. Emerging approaches including defect engineering, operando characterization, DFT modeling, and AI‐assisted design are discussed to accelerate the development of high‐
Narasimharao Kitchamsetti, Ana L. F. de Barros, Sungwook Mhin, HyukSu Han   +3 more
wiley   +1 more source