Results 41 to 50 of about 1,987 (214)

Cavitation analysis of a double acting podded drive during ice milling [PDF]

open access: yes, 2009
Propeller ice interaction is a complex phenomenon, which relies on innovative and complex experimental research in dedicated ice tank facilities. Whilst the ice tanks model the contact forces with good agreement, the hydrodynamic loading is often only ...
Atalr, M., Sasaki, N., Sampson, Roderick
core  

Enhancing hydrogen evolution reaction by harnessing bubble dynamics regulation: Principles, methods, and outlook

open access: yesDroplet, EarlyView.
Bubble dynamics pose critical bottlenecks to hydrogen evolution reaction efficiency, causing active site isolation, increased ohmic resistance, and concentration overpotential, especially at high current densities. This review comprehensively summarizes passive and active bubble manipulation strategies, elucidates their underlying principles, and ...
Ziwei Guo   +10 more
wiley   +1 more source

Multi‐Energy‐Driven Photocatalysis: Mechanism, Progress, and Perspective

open access: yesExploration, EarlyView.
Photocatalysis technology can be utilized in water splitting, carbon dioxide reduction, pollutant degradation, and chemical synthesis. Introducing external energy fields, including thermal energy, electrical energy, magnetic energy, mechanical energy, and microwave energy, has been considered as a promising method to improve photocatalytic performance ...
Liangcheng Xu   +5 more
wiley   +1 more source

Borophene‐based sensing platforms: Pioneering ultrasensitive detection

open access: yesFlexMat, EarlyView.
Schematic Diagram of Performance Optimization Strategies and Sensing Application Characteristics of Two‐Dimensional Boron‐Based Materials in Novel Sensors. Abstract Borophene is an emerging two‐dimensional (2D) material. Since significant breakthroughs were achieved in the experimental synthesis of borophene, the exploration and development of ...
Chi Yuan, Yanpeng Ji, Yi Liu, Guoan Tai
wiley   +1 more source

In Situ Acoustic Monitoring of Focused Femtosecond Pulse Duration in Air

open access: yesLaser &Photonics Reviews, EarlyView.
Air‐breakdown acoustics at the laser focus is used to determine femtosecond pulse duration with a simple USB microphone. By chirp‐tuning and compressing 1030 nm pulses from 241 to 50 fs, the acoustic amplitude scales inversely proportional to the square root of the pulse duration, enabling in situ readout over 50 fs–5 ps—crucial for precise pulse ...
Indrė Meškėlaitė   +9 more
wiley   +1 more source

A Review of Mechanical Reinforcement and Piezoresistive Self‐Sensing in Carbon Nanotube Fiber Composites

open access: yesPolymer Composites, EarlyView.
PSPP‐TRL mapping of CNT‐modified CFRP literature, with four recurring confusions resolved and five scale‐up problems quantified. ABSTRACT Carbon nanotube‐modified fiber composites are often presented as a route to stronger, tougher, and self‐sensing structural materials.
Sanan H. Khan
wiley   +1 more source

Cavitation patterns on a plano-convex hydrofoil in a highspeed cryogenic cavitation tunnel [PDF]

open access: yes, 2009
Cavitation around a plano-convex hydrofoil has been observed using a cryogenic cavitation tunnel of a blowdown type. An approximately 300mm long test section with flow visualization was set between the 100L upper and lower tanks.
Ito, Y., Nagayama, T., Nagasaki, T.
core  

Nonthermal plasma approaches for combating implant‐associated infections: A compendious review

open access: yesVIEW, EarlyView.
Implant‐associated infections pose serious clinical challenges. Non‐thermal plasma (NTP) modifications overcome this bottleneck in distinct ways relative to traditional sterilization methods. Gas‐phase plasmas generate highly energetic species, UV radiation and reactive oxygen/nitrogen species (RONS), which alter the implant surface properties.
A. M. Trimukhe   +8 more
wiley   +1 more source

Numerical simulation and experimental visualization of the separated cavitating boundary layer over NACA2412

open access: yesEPJ Web of Conferences, 2015
Cavitation is physical phenomenon of crucial impact on the operation range and service lifetime of the hydraulic machines (pumps, turbines, valves etc.). Experimental measurement of cavitation is expensive and time consuming process, while some important
Kozák Jiří   +5 more
doaj   +1 more source

An experimental investigation of artificial supercavitation generated by air injection behind disk-shaped cavitators

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2017
In this paper, we investigated physical characteristics of an artificial supercavity generated behind an axisymmetric cavitator. Experiments for the same model were carried out at two different cavitation tunnels of the Chungnam National University and ...
Byoung-Kwon Ahn   +5 more
doaj   +1 more source

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