Results 81 to 90 of about 138,530 (207)

Acoustic cavitation and bubble dynamics

open access: yesArchives of Acoustics, 2008
Acoustic cavitation is investigated experimentally and theoretically starting with a single bubble in an acoustic field. The single bubble is trapped in an acoustic resonator and observed by high-speed imaging and acoustic measurements following its transient dynamics to a possible steady state after generation by laser light.
Lauterborn, Werner   +5 more
openaire   +2 more sources

Habitat‐Specific Design Strategies for Untethered Soft Robots

open access: yesAdvanced 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   +3 more
wiley   +1 more source

Effect of cavitation erosion distance on the damage of hydraulic turbine materials

open access: yesUltrasonics Sonochemistry
Cavitation erosion could lead to material loss and structural damage in the flow components of hydraulic machinery, affecting the stable operation and efficiency of the equipment.
Pengbo Wu   +4 more
doaj   +1 more source

Analysis of radial oscillations of gas bubbles in Newtonian or viscoelastic mediums under acoustic excitation [PDF]

open access: yes
Acoustic cavitation plays an important role in a broad range of biomedical, chemical and oceanic engineering problems. For example, kidney stone can be crushed into the powder (being discharged naturally) by the acoustic cavitation generated by carefully
Zhang, Yuning (Researcher in engineering)
core  

Cavitation Bubbles in a Starting Submerged Water Jet [PDF]

open access: yes, 2001
The behavior of cavitation bubbles in a starting submerged water jet discharging from a circular nozzle is studied by a simple photography technique in a moderately low range of jet exit velocity.
Fujikawa, Shigeo   +3 more
core  

CeO2‐Based Electrocatalysts for the Oxygen Evolution Reaction: Design, Dynamic Mechanisms, and Electrolyte Adaptability

open access: yesAdvanced Science, EarlyView.
This Review shows how cerium oxide helps water‐splitting catalysts work better and last longer. It explains how CeO2 tunes electronic structure, oxygen‐vacancy behavior, and surface reconstruction, while adapting to alkaline, acidic, and seawater conditions.
Zhen Cui   +9 more
wiley   +1 more source

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

open access: yesApplied 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

Mechanism of Direct Acoustic Construction and Gradient Properties Tuning

open access: yesAdvanced Science, EarlyView.
Directed acoustic construction enables omnidirectional gradient tuning of fingerprint‐inspired microstructures. By investigating the DAC mechanisms, diamond particles are found to enhance acoustic physical, mechanical, and chemical effects, promoting acoustic curing and broadening the range of gradient property tuning.
Dandan Wu   +6 more
wiley   +1 more source

Interface‐Confined Cavitation at an MXene/TiO2 Schottky Heterointerface for Non‐Thermal Juice Preservation

open access: yesAdvanced Science, EarlyView.
This work establishes an MXene/TiO2 Schottky heterointerface for non‐thermal sonocatalysis. Interface‐confined cavitation and dynamic Ti3+/V₀ shuttles drive charge transport and reactive oxygen species (ROS) generation. The platform achieves 3‐log pathogen reduction while retaining heat‐labile nutrients in complex food matrices, redefining sonocatalyst
Xiaoge Wu   +5 more
wiley   +1 more source

Trash to Treasure: PFAS‐Functionalized MOFs for Boosted Piezocatalytic H2 Production

open access: yesAdvanced Energy Materials, EarlyView.
A novel pollutant‐as‐functional‐additive strategy is developed via postsynthetic modification of MOF‐808(Hf) with perfluorohexanoic acid (PFHxA), a typical PFAS pollutant. The modification boosts the dipole moment of the MOFs, enhances their piezoelectricity to promote efficient electron‐hole separation, thus delivering ultrahigh piezocatalytic ...
Haijun Hu   +11 more
wiley   +1 more source

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