Results 91 to 100 of about 1,427,145 (313)
Quasi‐Antipolar Nanoclusters Driven Superior Energy Storage in High‐Entropy Relaxor Ferroelectrics
Advanced Science, EarlyView.Quasi‐antipolar nanoclusters are engineered in lead‐free NaNbO3‐based high‐entropy relaxors that weaken polar nanoregion coupling and induce distinct ferroelectric transition under high fields to enable desirable polarization response. This breakthrough system achieves ultrahigh recoverable‐energy‐density (≈18.3 J cm−3), efficiency (≈91.5%), and ...
Ao Tian +12 more
wiley +1 more source
Research on double span rotor system driven by motorized spindle with coupling misalignment
Advances in Mechanical Engineering, 2019 This article is based on the spindle reliability test bench, which carries out a thorough study on the rotor system misalignment. Misalignment is one of the most common malfunctions in the rotor system, which seriously affects its reliability.
Fei Chen +4 more
doaj +1 more source
Thermocouple installation [PDF]
, 1976 A thermocouple assembly which includes a plug having a pair of small diameter holes near one end thereof which are spaced a small distance apart to leave a thin quantity of plug material between the holes is presented.
Macdavid, K. S. +2 more
core +1 more source
Conformal Mapping Design Tools for Coaxial Couplers with Complex Cross Section [PDF]
, 2002 Numerical conformal mapping is exploited as a simple, accurate, and efficient tool for the analysis and design of coaxial waveguides and couplers of complex cross section. An implementation based on the Schwarz-Christoffel Toolbox, a public-domain MATLAB
Ferrero, Andrea Pierenrico +2 more
core +1 more source
Advanced Science, EarlyView.A dual‐laser‐architected vertical graphene film enables high‐performance, morphologically reconfigurable thermoacoustic loudspeakers.The vertically aligned graphene structures combine efficient heat dissipation, thickness‐independent SPL, and kirigami‐driven 3D transformations, offering shape‐programmable, stretchable, and omnidirectional acoustic ...
TaeGyeong Lim +11 more
wiley +1 more source
Sensors, 2018 Low-cost piezoelectric lead zirconate titanate (PZT) diaphragm transducers have attracted increasing attention as effective sensing devices, based on the electromechanical impedance (EMI) principle, for applications in many engineering sectors.
Pedro Junior +3 more
doaj +1 more source
Human Skin‐Inspired Flexible Pressure Sensor with Multi‐Modulus Porous Structure
Advanced Electronic Materials, EarlyView.Skin‐inspired dual‐modulus pressure sensor is developed by mimicking epidermis–dermis mechanics with a porous MWCNT/PDMS composite, achieving high sensitivity and wide linear range through simple fabrication, and enabling scalable, cost‐effective applications in wearable electronics, robotics, and human–machine interfaces.
Hyeongmin Park +12 more
wiley +1 more source
Surface mechanomyography and electromyography provide non-invasive indices of inspiratory muscle force and activation in healthy subjects [PDF]
, 2018 The current gold standard assessment of human inspiratory muscle function involves using invasive measures of transdiaphragmatic pressure (Pdi) or crural diaphragm electromyography (oesEMGdi).
Jané Campos, Raimon +6 more
core +2 more sources
Advanced Energy and Sustainability Research, EarlyView.Hydrogen‐powered aviation offers a transformative pathway to zero‐emission flight by eliminating in‐flight CO2 emissions. Key considerations include propulsion systems (fuel cells and hydrogen combustion), cryogenic storage and insulation challenges, infrastructure and cost barriers, and supply‐chain constraints.
Mubasshira +4 more
wiley +1 more source
Effect of Diaphragm Thickness on Performance of Wind Turbine Couplings Under Different Loads
Jixie chuandongIn order to study the influence of diaphragm thickness on the torque transmission and misalignment compensation performance of wind turbine couplings, the overall finite element model of the coupling was established, the stress nephogram under the ...
Wang Bo +4 more
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