Results 51 to 60 of about 13,997 (261)
Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine
Advanced Materials, EarlyView.A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen +5 more
wiley +1 more source
IEEE Access, 2021 Since 2003, when the European Union (E.U.) announced the restriction of hazardous substances (RoHS), multiple efforts have been made to replace lead zirconate titanate (PZT) based piezoelectric materials.
Kyungmin Kim +5 more
doaj +1 more source
Advanced Materials, EarlyView.AI‐Assisted Workflow for (Scanning) Transmission Electron Microscopy: From Data Analysis Automation to Materials Knowledge Unveiling. Abstract (Scanning) transmission electron microscopy ((S)TEM) has significantly advanced materials science but faces challenges in correlating precise atomic structure information with the functional properties of ...
Marc Botifoll +19 more
wiley +1 more source
Characterization and Treatment Study of A handcraft Brass Trumpet From Dhamar Museum, Yemen
Archeomatica, 2018 Brass is more malleable and has better acoustic properties than pure copper or zinc; consequently, it is used in a variety of musical instruments, including trumpets, trombones, bells, and cymbals.
Mohamed Megahed, Mohamed M. Abdelbar
doaj +3 more sources
Titanium ultrasonic reactor tuned to 500 kHz
Acta Acustica, 2023 This study describes the design considerations, principles, and performance of a water-filled ultrasonic reactor formed by a 125 mm size titanium cylinder covered with 67 piezoelectric transducers, tuned as a system for peak emissions at 500 kHz.
Seifer Shahar
doaj +1 more source
Phase imaging with the scanning acoustic microscope
Electronics Letters, 1976 A new mode of operation for the acoustic microscope is described whereby the phase shift through the object is displayed in the form of an image. Experimental results are presented at an acoustic frequency of 1000 MHz. It is hoped that the `phase-only? images obtained with this technique will complement the conventional amplitude transmission images by
H.K. Wickramasinghe, M. Hall
openaire +1 more source
Advanced Materials, EarlyView.This study demonstrates a self‐assembly process to generate free‐standing piezoelectric nanomembranes, forming ultracompact microtubular acoustic wave sensors and actuators. The miniaturized 3D piezoelectric platform reported in this work can be applied in telecommunication, energy harvesting, and acoustofluidics. Moreover, the 3D self‐assembly can add
Raphaël C. L‐M. Doineau +9 more
wiley +1 more source
Three point bending test of glass/epoxy composite health monitoring by acoustic emission
Alexandria Engineering Journal, 2019 As glass epoxy composites have special properties, they are used in different structures. Health monitoring of this kind of composite is very important due to its use in many industries.
Nima Beheshtizadeh +2 more
doaj +1 more source
Advanced Materials, EarlyView.Drawing inspiration from the layered hard‐soft architecture found in sea sponges, this work establishes a new framework for architected cementitious composites (ACC) through multi‐material additive manufacturing (MMAM) process. The integration of mortar and elastomer phases into layered architectures enables synergistic toughening mechanisms, including
Aimane Najmeddine +5 more
wiley +1 more source
Acoustofluidic Measurements on Polymer-Coated Microbubbles: Primary and Secondary Bjerknes Forces
Micromachines, 2018 The acoustically-driven dynamics of isolated particle-like objects in microfluidic environments is a well-characterised phenomenon, which has been the subject of many studies. Conversely, very few acoustofluidic researchers looked at coated microbubbles,
Gianluca Memoli +4 more
doaj +1 more source