Results 91 to 100 of about 302,242 (373)

Micro‐ and Nano‐Bots for Infection Control

open access: yesAdvanced Materials, EarlyView.
This review presents a strategic vision for integrating micro‐ and nanobots in the pipeline for infection diagnosis, prevention, and treatment. To develop these robots as a practical solution for infection management, their design principles are clarified based on their propulsion mechanisms and then categorized infection management domains based on ...
Azin Rashidy Ahmady   +5 more
wiley   +1 more source

Size Effect on Acoustic Emission Characteristics of Coal-Rock Damage Evolution

open access: yesAdvances in Materials Science and Engineering, 2017
Coal-gas outburst, rock burst, and other mine dynamic disasters are closely related to the instability and failure of coal-rock. Coal-rock is the assemblies of mineral particles of varying sizes and shapes bonded together by cementing materials.
Zhijie Wen   +4 more
doaj   +1 more source

Underwater acoustic wave generation by filamentation of terawatt ultrashort laser pulses

open access: yes, 2016
Acoustic signals generated by filamentation of ultrashort TW laser pulses in water are characterized experimentally. Measurements reveal a strong influence of input pulse duration on the shape and intensity of the acoustic wave.
André, Yves-Bernard   +11 more
core   +3 more sources

Resonant properties of finite cracks and their acoustic emission spectra [PDF]

open access: yesarXiv, 2018
In this paper, the acoustic emission accompanying the formation of brittle cracks of finite length is investigated theoretically using the approach based on the application of Huygens' principle for elastic solids. In the framework of this approach, the main input information required for calculations of acoustic emission spectra is the normal ...
arxiv  

Materials Advances in Devices for Heart Disease Interventions

open access: yesAdvanced Materials, EarlyView.
This review examines the crucial role of materials in heart disease interventions, focusing on strategies for monitoring, managing, and repairing heart conditions. It discusses the material requirements for medical devices, highlighting recent innovations and their impact on cardiovascular health.
Gagan K. Jalandhra   +11 more
wiley   +1 more source

Experimental Research on Acoustic Emission Characteristics and Felicity Effects during Coal Fatigue Failure under Cyclic Loading

open access: yesAdvances in Materials Science and Engineering, 2020
In order to study the acoustic emission characteristics and Felicity effect in the process of coal fatigue failure and reveal the internal relationship between the fatigue damage evolution law and the acoustic emission activity, with the help of MTS815 ...
Yongjie Yang, Luyi Xing
doaj   +1 more source

Discovery of a New Cu‐Based Chalcogenide with High zT Near Room Temperature: Low‐Cost Alternative for the Bi2Te3‐Based Thermoelectrics

open access: yesAdvanced Materials, EarlyView.
This study reports the discovery of a stable γ‐phase in Cu6Te3‐xS1+x, achieving high thermoelectric performance with a Seebeck coefficient up to 200 µVK⁻¹ and ultralow thermal conductivity (≈0.25 Wm⁻¹K⁻¹). The material eliminates phase transitions, exhibits a zT of ≈1.1 at 500 K, and offers a cost‐effective, eco‐friendly alternative for waste heat ...
Oleksandr Cherniushok   +3 more
wiley   +1 more source

OCCLUDED GASES EFFECT ON ACOUSTIC EMISSION UNDER CRYSTAL SALVATION

open access: yesAdvanced Engineering Research, 2011
The acoustic emission following the salt solution processes is investigated. It is educed that the acoustic emission parameters depend on the substance chemistry.
Dmitry M. Kuznetsov   +2 more
doaj  

Photo and acoustic emissions from the non-equilibrium phase transition at the interface during cavitation [PDF]

open access: yesarXiv, 2019
This study investigates the emission of light and sound from cavitation caused by intense pressure pulses in water. Based on time-resolved measurements of (a) pressure waveform at the focus, (b) light scattering upon cavitation, (c) acoustic emission, and (d) photoemission (sonoluminescence) it is shown that emissions occur upon the creation or ...
arxiv  

Modeling time-delayed acoustic interactions of cavitation bubbles and bubble clusters [PDF]

open access: yesPhysics of Fluids 36, 122109 (2024)
We propose a low-dimensional modeling approach to simulate the dynamics, acoustic emissions and interactions of cavitation bubbles, based on a quasi-acoustic assumption. This quasi-acoustic assumption accounts for the compressibility of the medium surrounding the bubble and its finite speed of sound, whereby the potential of the acoustic wave emitted ...
arxiv   +1 more source

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