Results 61 to 70 of about 554,398 (245)

Effect of ultrasonic tip designs on intraradicular post removal

Restorative Dentistry & Endodontics, 2014
Objectives To evaluate the effect of different ultrasonic tip designs on intraradicular post removal. Materials and Methods The crowns of forty human canine teeth were removed, and after biomechanical preparation and filling, the roots were embedded
Anny Carine Barros Aguiar, Daniely Amorim de Meireles, André Augusto Franco Marques, Emílio Carlos Sponchiado Júnior, Angela Delfina Bitencourt Garrido, Lucas da Fonseca Roberti Garcia   +5 more
doaj   +1 more source

Design of an ultrasonic vibration system for generating rotating sound field- Quantitative evaluation of vibration distribution difference with changing the driving transducers - [PDF]

, 2022
application/pdfRotating sound field excited by flexural vibration disk/ring is used for some high-power ultrasonic applications. In general, two or more transducers are used for this purpose with changing the number or position of transducers.
里信, 純, Syuhei, TAKAHASHI, 高橋, 周平, タカハシ, シュウヘイ, Jun, SATONOBU, サトノブ, ジュン   +5 more
core  

Nitride MXenes Beyond Carbides: Bridging the Gap Between Computational Prediction and Experimental Realization

Advanced Functional Materials, EarlyView.
Nitride MXenes remain constrained by a persistent gap between computational prediction and experimental realization. This Review identifies the thermodynamic, kinetic, and chemical barriers limiting their synthesis, critically evaluates emerging fabrication routes, and proposes a multidimensional computational‐experimental framework to accelerate the ...
Naresh Varnakavi, Masoud Soroush
wiley   +1 more source

A local defect resonance for linear and nonlinear ultrasonic thermography [PDF]

, 2014
An efficient wave-defect interaction is the key to a high thermal response of flaws in ultrasonic thermography. To selectively enhance defect vibrations a concept of local defect resonance is developed and applied to ultrasonic activation of defects ...
Solodov, I., Rahammer, M., Busse, G.
core   +1 more source

Bio‐Inspired Multifunctional Superhydrophilic Coatings With Remarkably Fast Self‐Healing Abilities

Advanced Functional Materials, EarlyView.
We developed bio‐inspired multifunctional hydrogel‐based coatings that exhibit extremely fast/repeatable self‐healing abilities, long‐lasting anti‐fogging performance, superhydrophilicity in air, and underwater superoleophobicity. By doping multivalent metal‐ions into the hydrogel networks, which promoted hydrogen bonding formation and enhanced the ...
Hyeonjin Kim, Jerred Wassgren, Hiroshi Kakiuchida, Kouki Akaike, Shunsuke Tanaka, Atsushi Hozumi   +5 more
wiley   +1 more source

Micro Electrochemical Milling of Micro Metal Parts with Rotating Ultrasonic Electrode

Sensors, 2020
With the rapid development of MEMS, the demand for metal microstructure is increasing. Micro electrochemical milling technology (MECM) is capable of manufacturing micro metallic devices or components based on the principle of electrochemical anode ...
Yong Liu, Haoran Chen, Shenghai Wang, Kan Wang, Minghao Li, Tengfei Peng   +5 more
doaj   +1 more source

Reaction‐Time pH Stabilization by Poly(acrylic acid) with Ethanol‐Mediated Growth Control for Efficient Hydrothermal Sb2(S,Se)3 Solar Cells

Advanced Functional Materials, EarlyView.
Poly(acrylic acid) acts as a reaction‐time pH buffer during hydrothermal Sb2(S,Se)3 growth through its COOH/COO‐ equilibrium. When combined with ethanol‐regulated growth, this buffering strategy reduces Sb‐O related surface disorder, improves local electronic uniformity and carrier collection, and increases the champion solar‐cell efficiency to 10.25%,
Juhee Lee, Geumha Lim, Wookyung Jeon, Seongju Park, Jinwoo Chu, Yohan Yoon, William Jo, Byungha Shin   +7 more
wiley   +1 more source

Effect of ultrasonic vibration on quality and properties of laser cladding EA4T steel

Cailiao gongcheng, 2019
The surface of EA4T steel was repaired by ultrasonic vibration assisted laser cladding.The influence of ultrasonic vibration on the forming quality, microstructure and phase composition of laser cladding of EA4T steel were compared and analyzed by ...
CHEN Lin, CHEN Wen-jing, HUANG Qiang, XIONG Zhong   +3 more
doaj   +1 more source

Improved microstructure and mechanical properties of sheet metals in ultrasonic vibration enhanced biaxial stretch forming [PDF]

, 2019
Ultrasonic energy is used for applying severe plastic deformation on metal surfaces. In the present work, the effect of ultrasonic vibration on the formability, microhardness and microstructural properties of St14 steel sheet has been investigated. To be
Nima Najafizadeh, Ramin Hashemi, Saeid Amini, Majid Rajabi   +3 more
core   +2 more sources

Conjugated Porphyrin Polymer With Superior Charge Transfer for Photodynamic‐Immunomodulatory Prevention of CIED Infection in Diabetes

Advanced Healthcare Materials, EarlyView.
Under NIR irradiation, PTCPP generates ROS to eliminate MRSA biofilms and promote M1 macrophage polarization for phagocytosis. After bacterial clearance, the material is phagocytosed by macrophages, shifting their polarization to M2 phenotype via metabolic reprogramming, which synergistically enhances anti‐infection therapy and wound healing.
Honghao Ma, Jinguo Xu, Rongrong Gu, Chuanhui Dong, Te Chen, Yi Mu, Jing Zhu, Yating Wang, Wen Wang, Yingying Zhang, Hongyu Ma, Xiaochen Wang, Sheng Ye, Cheng Cheng   +13 more
wiley   +1 more source