Results 111 to 120 of about 8,799 (301)

Defect Monitoring and Radial Damage Evaluation of Pipeline Based on Ultrasonic Guided Wave

open access: yesShiyou jixie, 2021
The defect monitoring and radial damage evaluation are of great significance for safe operation of oil and gas pipelines. In order to improve the monitoring ability of ultrasonic guided waves for pipeline defects, a new method for radial damage depth ...
Xu Yang, Luo Mingzhang, Du Guofeng
doaj  

Optimization of Wall Thickness Monitoring Technology for High Temperature Pipelines Based on Ultrasonic Guided Waves [PDF]

open access: yesZhengzhou Daxue xuebao. Gongxue ban
Ultrasonic guided wave technology was often used for wall thickness monitoring system of high tempera ture pipelines because it could isolate the ultrasonic transducer from the high temperature environment.
ZHOU Juncen   +4 more
doaj   +1 more source

Ultrasound‐Actuated Gene Editing in Human Kidney Organoids

open access: yesAdvanced Science, EarlyView.
Peptide‐stabilized nanoemulsions enable spatially controlled, ultrasound‐triggered delivery of gene‐editing proteins deep within human kidney organoid tissues. Focused acoustic pulses drive droplet vaporization, propelling cargo into target renal cells while preserving native tissue microarchitecture. This non‐viral platform improves both the depth and
Michael A. Miller   +6 more
wiley   +1 more source

Scanning laser techniques for characterisation of different surface breaking defect geometries [PDF]

open access: yes, 2012
Measurements using a laser scanning system consisting of a pulsed Nd:YAG laser to generate surface ultrasonic waves and an interferometer to detect the surface displacement, are presented for different samples and defect geometries.
Edwards, R. S. (Rachel S.)   +4 more
core  

3D Large‐Scale Subwavelength‐Resolution Sound Sheet Tomography Based on an Active and Programmable Circular Meta‐Array

open access: yesAdvanced Science, EarlyView.
A programmable 2048‐element circular ultrasound array combined with a compact acoustic lens produces a thin “sound sheet” over a large field of view, and records echoes with wide angular diversity across the ring aperture. Coherence‐enhanced beamforming converts full‐matrix data into high‐contrast tomographic slices, delivering near‐diffraction‐limited
Qiu‐De Zhang   +11 more
wiley   +1 more source

Engineering Approaches to Modify Immunomodulatory Functions of Mesenchymal Stromal Cells (MSCs): Tissue Regeneration and Clinical Application

open access: yesAdvanced Science, EarlyView.
Mesenchymal stromal cells (MSCs) show promise for treating immune‐related disorders through immunomodulation and tissue regeneration. This review gives a brief overview of current clinical approval of MSC therapies. It also discussed how bioengineering, including genetic modification, biomaterial delivery, extracellular vesicles, and iPSC‐derived MSCs,
Sichen Yang   +6 more
wiley   +1 more source

Smart Nanotechnologies for Multimodal Neuromodulation and Brain Interfacing

open access: yesAdvanced Science, EarlyView.
Recent advances in smart nanotechnologies are expanding the toolbox for brain interfacing, from wireless neuromodulation and high‐resolution sensing to targeted delivery within the central nervous system. By combining responsive nanomaterials with bioinspired design, these platforms enable multimodal interactions with neurons and glia, while also ...
Tommaso Curiale   +6 more
wiley   +1 more source

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