Results 51 to 60 of about 19,778 (259)

Airborne ultrasound pulse amplification based on acoustic resonance switching

open access: yesScientific Reports, 2022
Airborne ultrasound radiation pressure, a nonlinear effect that appears as a static force in mid-air in the presence of strong ultrasound, has recently been applied in novel scientific and industrial fields.
Yuki Hashimoto, Yasuaki Monnai
doaj   +1 more source

Cellular Responses to Mechanical Cues Across Scales: From Fundamental Insights to Translational Potential

open access: yesAdvanced Healthcare Materials, EarlyView.
This review examines how cellular behavior is regulated by mechanical cues transmitted through soft biomaterials, from single‐cell mechanosensing to tissue‐level adaptation. It highlights why physiological relevance, rather than model complexity alone, is critical for translational mechanobiology and introduces a scoring framework linking material ...
Mathias Polz   +9 more
wiley   +1 more source

Nonlinear ultrasonic characterization method for early-stage degradation damage state detection in welded pressure vessels

open access: yesHanjie xuebao
To address the condition monitoring problem characterized by weak detectability and poor traceability of early-stage degradation and micro-damage in weak regions of welded pressure vessels during service, a nonlinear ultrasonics (NLU) detection and ...
Shibo WEI   +4 more
doaj   +1 more source

Amplitude and phase relation of harmonics in nonlinear focused ultrasound

open access: yesAIP Advances, 2022
High intensity focused ultrasound has gained rapid clinical acceptance as a noninvasive treatment for solid tumors. As implied by the name, the intensity of sound at the focus is generally large.
Delin Wu   +7 more
doaj   +1 more source

Intelligent Orthopedics: Machine Learning in Diagnosis of Bone Disease, Implants, and Bone Health Monitoring

open access: yesAdvanced Healthcare Materials, EarlyView.
Efficient recovery from traumatic or degenerative diseases is a great challenge, even after all the advancements in bone and cartilage regeneration. Machine learning (ML) algorithms have presented opportunities to enhance these aspects by accurately analyzing imaging data.
Maryam Kamaei   +9 more
wiley   +1 more source

Kelvin Probe Force Microscopy in Bionanotechnology: Current Advances and Future Perspectives

open access: yesAdvanced Materials, EarlyView.
Kelvin probe force microscopy (KPFM) enables the nanoscale mapping of electrostatic surface potentials. While widely applied in materials science, its use in biological systems remains emerging. This review presents recent advances in KPFM applied to biological samples and provides a critical perspective on current limitations and future directions for
Ehsan Rahimi   +4 more
wiley   +1 more source

Nonlinear ultrasonic detection for curing properties of the liner

open access: yesJournal of Measurement Science and Instrumentation, 2018
The relationship between ultrasonic nonlinearity and microstructure of the liner was studied during the whole curing process by ultrasonic transmission method and infrared spectroscopy.Nonlinearity of input instrumentation was minimized by the natural ...
JIANG Nian, WANG Zhao-ba
doaj  

Process, dynamics and bioeffects of acoustic droplet vaporization induced by dual-frequency focused ultrasound

open access: yesUltrasonics Sonochemistry
Acoustic droplet vaporization (ADV) plays a crucial role in ultrasound-related biomedical applications. While previous models have examined the stages of nucleation, growth, and oscillation in isolation, which may limit their ability to fully describe ...
Yubo Zhao, Yi Feng, Liang Wu
doaj   +1 more source

Nonlinear ultrasonic imaging in pulse-echo mode using Westervelt equation: a preliminary research

open access: yesComputer Assisted Surgery, 2019
Acoustic nonlinear parameter β, was of great interest in tissue characterization in recent years. Nonlinear imaging methods have been reported to provide improved spatial and contrast resolution.
Wuxuan Chen   +5 more
doaj   +1 more source

Ion‐Reconfigurable “N”‐Shaped Antiambipolar Behavior in Organic Electrochemical Transistors

open access: yesAdvanced Materials, EarlyView.
A unique N‐shaped negative differential transconductance (NDT) characteristics is demonstrated in single‐polymer organic electrochemical transistors through a sequential doping–redox–doping process driven by iodide ions. This redox‐driven mechanism enables low‐voltage, ion‐controlled reconfigurability and tunable current modulation, allowing seamless ...
Debdatta Panigrahi   +11 more
wiley   +1 more source

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