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NEMS generated electromechanical frequency combs.
Microsyst Nanoeng
January 2025
Department of Systems Design Engineering, University of Waterloo, Waterloo, ON, N2L 3G1, Canada.
This paper presents a novel technique for low-power generation of frequency combs (FC) over a wide frequency range. It leverages modal interactions between electrical and mechanical resonators in electrostatic NEMS operating in air to provide a simple architecture for FC generators. A biased voltage signal drives the electrical resonator at resonance which is set to match an integer submultiple of twice the mechanical resonator's resonance.
View Article and Find Full Text PDFA flexible, antifreezing, and long-term stable cellulose ionic conductive hydrogel via one-step preparation for flexible electronic sensors.
Carbohydr Polym
March 2025
Key Laboratory of Thorium Energy, Shanghai Institute of Applied Physics, Chinese Academy of Science, No. 2019 Jialuo Road, Shanghai 201800, China.
Ionic conductive hydrogels have attracted great attention due to their good flexibility and conductivity in flexible electronic devices. However, because of the icing and water loss problems, the compatibility issue between the mechanical properties and conductivity of hydrogel electrolytes over a wide temperature range remains extremely challenging to achieve. Although, antifreezing/water-retaining additives could alleviate these problems, the reduced performance and complex preparation methods seriously limit their development.
View Article and Find Full Text PDFDevelopment of Piezoelectric Inertial Rotary Motor for Free-Space Optical Communication Systems.
Micromachines (Basel)
December 2024
Department of Applied Mechanics, Faculty of Civil Engineering, Vilnius Gediminas Technical University, LT-10223 Vilnius, Lithuania.
This paper presents the design, development, and investigation of a novel piezoelectric inertial motor whose target application is the low Earth orbit (LEO) temperature conditions. The motor utilizes the inertial stick-slip principle, driven by the first bending mode of three piezoelectric bimorph plates, and is compact and lightweight, with a total volume of 443 cm and a mass of 28.14 g.
View Article and Find Full Text PDFElectro-deformation spectroscopy: A unified method for simultaneous electrical and mechanical characterization of single cells.
Acta Biomater
January 2025
Department of Ocean and Mechanical Engineering, College of Engineering and Computer Science, Florida Atlantic University, Boca Raton, FL 33431, United States.
The intrinsic electrical and mechanical properties of cells are not only valuable biophysical markers reflective of physiological conditions but also play important roles in the development and progression of human diseases. Existing single-cell techniques are restricted to assessing either mechanical or electrical properties. We introduce the development of electro-deformation spectroscopy (EDS), namely the frequency-dependent electro-deformation, as a new method for simultaneous electrical and mechanical characterization of individual cells in suspension.
View Article and Find Full Text PDFConstruction Method of a Digital-Twin Simulation System for SCARA Robots Based on Modular Communication.
Sensors (Basel)
November 2024
Department of Electric Drive, Mechatronics and Electromechanics, South Ural State University, Chelyabinsk 454080, Russia.
Due to the high cost of robots, the algorithm testing cost for physical robots is high, and the construction of motion control programs is complex, with low operation fault tolerance. To address this issue, this paper proposes a low-cost, cross-platform SCARA robot digital-twin simulation system based on the concept of digital twins. This method establishes a 5D architecture based on the characteristics of different platforms, classifies data and integrates functions, and designs a data-processing layer for motion trajectory calculation and data storage for a virtual-reality robot.
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