Results 31 to 40 of about 5,941 (251)

Electromechanical Anisotropy at the Ferroelectric to Relaxor Transition of (Bi0.5Na0.5)0.94Ba0.06TiO3 Ceramics from the Thermal Evolution of Resonance Curves

Applied Sciences, 2018
(Bi0.5Na0.5)0.94Ba0.06TiO3 dense ceramics were obtained from autocombustion sol-gel synthesized nanopowders and sintered at 1050 °C for 1–2 h for the study of the electromechanical anisotropy. Measurement of the complex impedance spectrum was carried out
Nicolás Pérez, Alvaro García, Enrique Riera, Lorena Pardo   +3 more
doaj   +1 more source

Probabilistic Approach for Electromechanical Impedance-Based SHM Models

OBSERVATÓRIO DE LA ECONOMÍA LATINOAMERICANA, 2023
Applying structural health monitoring techniques has become very important in engineering and aeronautics. The technique based on electromechanical impedance is one of them. In this work, the electromechanical impedance-based SHM technique is applied to determine the existence of damage in an aluminum beam using the Root Square Deviation (RMSD) damage ...
Gislene da Silva Fonseca, Bruno Pereira Barella, Renan Garcia Rosa, Stanley Washington Ferreira De Rezende, Jose dos Reis Vieira De Moura Junior   +4 more
openaire   +1 more source

Microstructure Modification of Additively Manufactured Mo–9Si–8B by Annealing and Its Effects on High‐Temperature Mechanical Properties

Advanced Engineering Materials, EarlyView.
Postbuild annealing systematically modifies the phase fractions and morphology of EB‐PBF processed Mo–9Si–8B. Quantitative microstructure–property correlations reveal how controlled phase evolution enhances high‐temperature compressive strength and creep resistance.
Christopher Schmidt, Yong Chen, Georg Hasemann, Benjamin Wahlmann, Carolin Körner, Manja Krüger   +5 more
wiley   +1 more source

Electromechanical Dynamics Model of Ultrasonic Transducer in Ultrasonic Machining Based on Equivalent Circuit Approach

Sensors, 2019
Ultrasonic transducer is a piezoelectric actuator that converts AC electrical energy into ultrasonic mechanical vibration to accelerate the material removal rate of workpiece in rotary ultrasonic machining (RUM).
Jian-Guo Zhang, Zhi-Li Long, Wen-Ju Ma, Guang-Hao Hu, Yang-Min Li   +4 more
doaj   +1 more source

Piezoelectric Sensor-Embedded Smart Rock for Damage Monitoring in a Prestressed Anchorage Zone

Sensors, 2021
In this paper, a piezoelectric sensor-embedded smart rock is proposed for the electromechanical impedance monitoring of internal concrete damage in a prestressed anchorage zone.
Quang-Quang Pham, Ngoc-Loi Dang, Jeong-Tae Kim   +2 more
doaj   +1 more source

Electromechanical Impedance Sensor for In Vivo Monitoring the Body Reaction to Implants

Journal of Investigative Surgery, 2004
A novel sensor for in situ monitoring of the body reaction to implants has been developed. A piezoelectric wafer active sensor was adapted for biomedical applications (bio-PWAS). A number of bio-PWAS sensors have been implanted in rats and left in place up to 64 days. The bio-PWAS were able to oscillate in several resonance modes, radial-wise (in-plane)
Victor, Giurgiutiu, Harold, Friedman, Jonathan, Bender, Thomas, Borg, Michael, Yost, William, Newcomb, Amanda, Black, Joel, Bost, Christopher, Stewart   +8 more
openaire   +2 more sources

Architecture‐Driven Sensor Stability in Weft‐Knitted Engineering Textiles

Advanced Engineering Materials, EarlyView.
Textile‐integrated sensor architectures are systematically compared to evaluate their electromechanical behavior under combined mechanical and environmental loading. Pocket‐based integration exhibits stable and reproducible signals, whereas tunnel‐based routing shows higher sensitivity accompanied by increased variability.
Adnan Maroof Khan, Johannes Wendler, Dilbar Aibibu, Johannes Mersch, Michael Wöltje, Chokri Cherif   +5 more
wiley   +1 more source

Crosstalk of cardiomyocytes and fibroblasts in co-cultures [PDF]

Open Biology, 2015
Electromechanical function of cardiac muscle depends critically on the crosstalk of myocytes with non-myocytes. Upon cardiac fibrosis, fibroblasts translocate into infarcted necrotic tissue and alter their communication capabilities.
J. Rother, C. Richter, L. Turco, F. Knoch, I. Mey, S. Luther, A. Janshoff, E. Bodenschatz, M. Tarantola   +8 more
doaj   +1 more source

Fabrication Routes for Ionic Conducting Fiber Strain Sensors

Advanced Engineering Materials, EarlyView.
Ionic conducting fiber strain sensors (ICFSs) offer compliant, textile‐integrable sensing. Thus far, the commercialization of ICFSs has been constrained by fiber fabrication routes. This review provides a fabrication‐centric analysis of ICFSs correlating processing strategies with material properties and scalability.
Leo John Kershaw, Zhanhong Yang, Anne Ladegaard Skov, Magdalena Skowyra   +3 more
wiley   +1 more source

Sensor Fault Diagnosis for Impedance Monitoring Using a Piezoelectric-Based Smart Interface Technique

Sensors, 2020
For a structural health monitoring (SHM) system, the operational functionality of sensors is critical for successful implementation of a damage identification process.
Thanh-Canh Huynh, The-Duong Nguyen, Duc-Duy Ho, Ngoc-Loi Dang, Jeong-Tae Kim   +4 more
doaj   +1 more source