Results 61 to 70 of about 187,035 (226)

Near-wall double-bubble collapse dynamics and their impact-strengthening role in cavitation-assisted ultrasonic surface rolling

Journal of Mechanical Engineering and Sciences
Ultrasonic Surface Rolling (USR) is a surface deformation strengthening technology. By introducing cavitation effects into USR, the extreme high-pressure shock waves generated by the collapse of microscale bubbles can further enhance the surface ...
Hongbo Li, Jianxin Zheng, Xiao Yu, Junhua Li, Yanyan Yan, Shen Niu   +5 more
doaj   +1 more source

Sonogenetic Control of Engineered Probiotics for the Treatment of MASH by Modulating the Gut‐Liver Axis

Advanced Science, EarlyView.
Researchers developed an engineered probiotic encapsulated in an inulin hydrogel, enabling ultrasound‐triggered intestinal delivery of IL‐22. In MASH model mice, this system remodeled gut microbiota, strengthened the intestinal barrier and reduced portal LPS and hepatic IL‐6.
Chunya Ji, Yan Fang, Shen Zhang, Weichen Xu, Wenyun Guo, Jing Chen, Mingrui Zhu, Congjian Wen, Siming Chen, Yuli Zhu, Huixiong Xu, Haohao Yin   +11 more
wiley   +1 more source

Characteristics of the pressure wave between compressible vapor bubble and air bubble in an infinite domain

Applied Ocean Research
Aeration is a widely adopted and effective approach for mitigating cavitation erosion in hydraulic engineering. The erosion-mitigating effect of aeration depends on the interaction between cavitation bubbles and air bubbles, particularly on the ...
Yang Liu, Xiaolong He, Jianmin Zhang
doaj   +1 more source

Numerical and Experimental Studies on the Effect of Surface Roughness and Ultrasonic Frequency on Bubble Dynamics in Acoustic Cavitation

Energies, 2020
With many emerging applications such as chemical reactions and ultrasound therapy, acoustic cavitation plays a vital role in having improved energy efficiency.
Rana Altay, Abdolali K. Sadaghiani, M. Ilker Sevgen, Alper Şişman, Ali Koşar   +4 more
doaj   +1 more source

Study of wall wettability effects on cavitation bubble collapse using lattice Boltzmann method

AIP Advances, 2021
This study investigates the effects of wall wettability on cavitation bubble collapse using the pseudopotential lattice Boltzmann method with an appropriate external force term and wall contact angle boundary condition.
Hao Yuan, Jianbao Zhang, Jiayu Zhou, Jiawan Tan, Zhaobing Wang, Weidong Gan   +5 more
doaj   +1 more source

Targeted Mechanogenetics to Modulate Specific Deep Neural Circuits

Advanced Science, EarlyView.
This study introduces mechanogenetics, a nanobubble‐enhanced sonogenetic strategy for selective modulation of feeding‐related neural circuits in the mouse lateral hypothalamus. Mechanogenetic stimulation modulates feeding behavior through glutamatergic projections from the lateral hypothalamus to the ventral tegmental area, highlighting its potential ...
Xuandi Hou, Jianing Jing, Zhuohan Shi, Lei Sun   +3 more
wiley   +1 more source

Experimental Study on the Movement Characteristics of Spark-induced Cavitation Bubble with a wall by High-speed Photographical

工程科学与技术, 2013
:Experiments are carried out with high-speed photography to observe the developing course of spark-induced cavitation bubble under the impact of the nearby wall.
Luo Jing
doaj  

Ultrasound‐Triggered piRNA Delivery Using Biomimetic Phase‐Changeable Nanoparticles for Theranostics of Myocardial Infarction

Advanced Science, EarlyView.
A biomimetic ultrasound‐responsive piRNA delivery nanoparticle platform (piR‐NPs) enables targeted delivery and ultrasound (US)‐triggered release of piR‐1873 in infarcted myocardium. The released piR‐1873 suppresses Usp2‐mediated RIP1/RIP3/MLKL necroptosis, reduces myocardial injury and fibrosis, and promotes cardiac functional recovery, providing a ...
Yajun Zhang, Hongzhao Qi, Yanyan Yang, Feng Wang, Tiantian Han, Yanbei Lei, Xiaolu Li, Zhibin Wang, Hua Qu, Tao Yu, Pin Sun   +10 more
wiley   +1 more source

Numerical Calculation on Cavitation Pressure Pulsation in Centrifugal Pump

Advances in Mechanical Engineering, 2014
In order to study the internal flow in centrifugal pump when cavitation occurs, numerical calculation of the unsteady flow field in the WP7 automobile centrifugal pump is conducted based on the Navier-Stokes equations with the RNG k – ε turbulence model ...
Weidong Shi, Chuan Wang, Wei Wang, Bing Pei   +3 more
doaj   +1 more source

Habitat‐Specific Design Strategies for Untethered Soft Robots

Advanced Science, EarlyView.
Habitat shapes the design of untethered soft robots. Across land, water, air, and living tissues, environmental constraints govern viable combinations of compliant structures, actuation mechanisms, and energy delivery. This review connects these constraints with robotic performance and identifies design principles for advancing adaptable, durable, and ...
Siyang Li, Zhikun Miao, Tuck‐Whye Wong, Tiefeng Li   +3 more
wiley   +1 more source