Results 21 to 30 of about 1,632 (307)
Mathematics, 2022 A synchronous homopolar motor (SHM) has a salient pole passive rotor, an excitation winding located on the stator, and no permanent magnets, which ensures high reliability and makes this type of motor a good alternative to motors traditionally used in ...
Vladimir Prakht +3 more
doaj +1 more source
Traction Motor-Inverter Utilized Battery Charger for PHEVs [PDF]
Journal of Power Electronics, 2013 Most eco-friendly cars can adopt the concept of an integrated battery charger (IBC), which uses currently available motor drive systems. The IBC has a lot of strong points such as low cost and minimum space for the high voltage battery charger. On the other hand, it also has some defects caused by its structure.
Dong-Gyun Woo +3 more
openaire +1 more source
Substrate Stress Relaxation Regulates Cell‐Mediated Assembly of Extracellular Matrix
Advanced Functional Materials, EarlyView.Silicone‐based viscoelastic substrates with tunable stress relaxation reveal how matrix mechanics regulates cellular mechanosensing and cell‐mediated matrix remodelling in the stiff regime. High stress relaxation promotes assembly of fibronectin fibril‐like structures, increased nuclear localization of YAP and formation of β1 integrin‐enriched ...
Jonah L. Voigt +2 more
wiley +1 more source
The Determination of the Asynchronous Traction Motor Characteristics of Locomotive
Advances in Electrical and Electronic Engineering, 2017 The article deals with the problem of the locomotive asynchronous traction motor control with the AC diesel-electric transmission. The limitations of the torque of the traction motor when powered by the inverter are determined.
Pavel Grigorievich Kolpakhchyan +5 more
doaj +1 more source
Multilevel inverter application for railway traction motor control
Bulletin of Electrical Engineering and Informatics, 2022 This paper will present why choosing a 7-level reverse voltage source fed to three-phase induction motors to the railway traction motor. In addition, this paper shows the implementation of space vector pulse width modulation (SVPWM) and the math model of induction motor, stator currents, and speed controller design of electric traction drive system ...
Vo Thanh Ha, Pham Thi Giang, Phuong Vu
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Advanced Functional Materials, EarlyView.There is a significant need for biomaterials with well‐defined stability and bioactivity to support tissue regeneration. In this study, we developed a tunable microgel platform that enables the decoupling of stiffness from porosity, thereby promoting bone regeneration.
Silvia Pravato +9 more
wiley +1 more source
Controlling 3D Contractility via Engineered Fibrous Hydrogel Composites
Advanced Functional Materials, EarlyView.A tunable composite contractile assembly (CCA) is developed that can permit or resist contraction without changing cell‐adhesion and density, unlike collagen whose inherent coupling of these ECM cues limits its use as a platform in contractility studies.
Karen L. Xu +7 more
wiley +1 more source
Advanced Healthcare Materials, EarlyView.We developed a micro‐sized, biocompatible implant for postoperative sustained delivery of anti‐fibrotic antibodies in glaucoma surgery. Machine learning‐guided optimization of polymer composition, implant geometry, and porosity enabled precise control of drug release.
Mengqi Qin +5 more
wiley +1 more source
Noise test and index analysis of metro vehicle and equipment
机车电传动, 2022 Aiming at the unreasonable noise index proposed by a certain project for metro vehicles and equipment, taking a domestic subway line as the test object, noise test under the condition of parking, 25 km/h passing, slow passing and brake at the bend of ...
DING Jie
doaj
Open-circuit fault diagnosis of traction inverter based on compressed sensing theory
Chinese Journal of Electrical Engineering, 2020 This study proposes a new method of fault diagnosis based on the least squares support vector machine with gradient information (G-LS-SVM) to solve the insulated-gate bipolar transistor(IGBT) open-circuit failure problem of the traction inverter in a ...
Yongqi Cheng +3 more
doaj +1 more source