Results 61 to 70 of about 20,630 (240)
Vestnik MGTU, 2017 Nowadays permanent magnet synchronous machines those frequency-controlled from stator side with frequency inverters made on the basis of power transistors or fully controlled thyristors, are widely used as motors and generators.
Hasanova L. H. , Mustafayev R. I.
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Advanced Healthcare Materials, EarlyView.PolyGraph, a flexible graphene‐polycaprolactone nanocomposite, unites conductivity, biocompatibility, and processability for next‐generation neural interfaces. Fabricated into microneedle arrays with ultra‐flexible backings, PolyGraph enables bidirectional neuronal recording and stimulation in brain tissue, advancing brain‐computer interface (BCI) and ...
Jack Maughan +12 more
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Fully Wireless and Flexible Valves for Multiplexed and Prolonged Intravesical Liquid Release
Advanced Healthcare Materials, EarlyView.A fundamental mechanism for the simultaneous control of multiple magnetic valves is reported in a miniature soft robotic patch for intravesical drug delivery, enabling fully wireless and programmable liquid release. Integrated with a bioadhesive interface and induction‐coupling‐based liquid volume sensing, the soft robotic patch is promising to enable ...
Boyang Xiao +5 more
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Speedups of deterministic machines by synchronous parallel machines
Proceedings of the fifteenth annual ACM symposium on Theory of computing - STOC '83, 1983 The paper presents new speedups of deterministic multitape Turing machines by both fixed and variable structure parallel machines. Namely, it is shown that DTIME(T)\(\subseteq ATIME(T/\log T)\) and DTIME(T)\(\subseteq PRAM\)-time(\(\sqrt{T})\). These improve many previously known results.
Patrick W. Dymond, Martin Tompa
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Advanced Materials, EarlyView.We developed a bioinspired mechano‐intelligent Janus bandage (MIB) with a hydrophobic flat exterior and a hydrophilic interior featuring gecko‐mimicking wedged microstructures, fabricated via micromolding and anisotropic plasma treatment. The MIB dynamically synchronizes adhesion and contraction, enabling precise force modulation.
Di Suo +7 more
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Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application
Advanced Materials, EarlyView.This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong +12 more
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A PSO-based approach for parameter estimation in synchronous machines [PDF]
Serbian Journal of Electrical EngineeringThis study employs the particle swarm optimization (PSO) approach using Stand Still Frequency Responses Testing (SSFR) to identify the time constants (poles and zeros) of the operational inductances along the d and q axes, as well as the ...
Leguebedj Farid +3 more
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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
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Intelligent Acousto‐Electrical Metamaterials (IAM) for Sound Source Detection
Advanced Materials, EarlyView.Our proposed metamaterial concept enables sound source detection using a single material, in contrast to conventional arrays that require dozens or even hundreds of transducers. We show that the coupled acoustic–vibrational–electrical responses in piezoelectric metamaterials give rise to topology‐governed charge transport, producing distinct voltage ...
Victor Couëdel +7 more
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Stator Electrically-excited Brushless Synchronous Machine and Its Inductance Calculation
Kongzhi Yu Xinxi Jishu, 2018 It is known that the reliability of electrically excited synchronous machine with brush is reduced. It proposed a new type of electrically excited synchronous machine, the stator electrically-excited brushless synchronous machine (SEBSM).
JIA Guanglong +3 more
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