Results 41 to 50 of about 3,098,425 (289)

Study of a Hybrid Excitation Synchronous Machine: Modeling and Experimental Validation

Mathematical and Computational Applications, 2019
This paper deals with a parallel hybrid excitation synchronous machine (HESM). First, an expanded literature review of hybrid/double excitation machines is provided.
Salim Asfirane, Sami Hlioui, Yacine Amara, Mohamed Gabsi   +3 more
doaj   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

Advanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova, Anna Chiara Bressi, Marina Galliani, Attilio Marino, Gianni Ciofani, Eduardo Machado‐Charry, Hilda Gomez Bernal, Alessandra Francini, Luca Sebastiani, Francesco Greco   +9 more
wiley   +1 more source

High-Frequency Modeling of Three-Phase Transformers Considering Inter-Phase and Capacitive Coupling Based on Enhanced Magnetic Circuit

IEEE Access
The high-frequency harmonics in the power grid have significantly increased, necessitating the construction of equivalent circuit models for large power transformers under the influence of high-frequency harmonics.
Yingying Wang, Jindi Pang, Xiongyang Cai, Lili Hou   +3 more
doaj   +1 more source

From Sensing Mechanisms to System Co-Design: Graphene-Based Sensors and Readout Circuits. [PDF]

Adv Sci (Weinh)
This review establishes a unified PS–EQ–RF framework linking graphene sensing mechanisms, native electrical outputs, and output‐specific readout circuits. Voltage‐, current‐, resistance‐, and capacitance‐type sensing systems are systematically classified to guide architecture selection, low‐noise design, system co‐design, and practical integration ...
Zhang J, Chen M, Li G, Liu R, Wang Y, Zhao Z.   +5 more
europepmc   +2 more sources

Advances in Sustainable and Wearable Textile Based Soft Robotics

Advanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas, Marzia Dulal, Sophia K. Novoselov, Victoria K. Novoselov, Kostya S. Novoselov, Shaila Afroj, Nazmul Karim   +6 more
wiley   +1 more source

An Improved Magnetic Equivalent Circuit Model for Electromagnetic Modeling of Electric Machines

Iranian Journal of Electrical and Electronic Engineering, 2021
Poor modeling of air-gap is the main defect of conventional magnetic equivalent circuit (CMEC) model for performance analysis of electric machines. This paper presents an improved magnetic equivalent circuit (IMEC) which considers all components of air ...
F. Rezaee-Alam, B. Rezaeealam, S. M. M. Moosavi   +2 more
doaj  

Implantable Ionic Memristors Based on Natural Polymer Heterojunctions

Advanced Functional Materials, EarlyView.
We report an implantable natural polymer‐based ionic memristor composed of hyaluronic acid, chitosan, and PDMS. The device achieved 98.94% accuracy in MNIST classification while reducing training time by 36.8% compared with a conventional artificial neural network (ANN).
Dong‐yup Lee, Byung Ik Park, Gihyeon Yim, Hyunjae Yoo, Sangjun Ma, Jundong Park, Jeong‐Yun Sun   +6 more
wiley   +1 more source

A Novel Nonlinear Magnetic Equivalent Circuit Model for Magnetic Flux Leakage System

Applied Sciences
To ensure efficient inspection using the magnetic flux leakage (MFL) method, generating a flux density near the saturation level within the tested material is essential.
Okan Kara, Hasan Hüseyin Çelik
doaj   +1 more source

Strong Lead‐Free Bioinspired Piezoceramics for Durable Energy Transducers

Advanced Functional Materials, EarlyView.
We fabricated brick‐and‐mortar lead‐free piezoceramics with Bi0.5Na0.5TiO3 monocrystal platelets as bricks and amorphous silica as mortar. The alignment of the bricks and the presence of the amorphous silica led to anisotropic residual stresses. These residual stresses increase the samples toughness, strength and durability while the brick alignment ...
Ruxue Yang, Temesgen Tadeyos Zate, Peiren Wang, Soumyajit Mojumder, Elo Overgaard Mogensen, Oriol Gavalda‐Diaz, Zihe Li, Shitong Zhou, Ajeet Kumar, James Roscow, Hamideh Khanbareh, Astri Bjørnetun Haugen, Florian Bouville   +12 more
wiley   +1 more source

Equivalent Permeability of Step-Lap Joints of Transformer Cores: Computational and Experimental Considerations [PDF]

, 2011
The paper develops an efficient computational method for establishing equivalent characteristics of magnetic joints of transformer cores, with special emphasis on step-lap design.
Napieralska-Juszczak, Ewa, Komeza, Krzysztof, Ewa Napieralska-Juszczak, Jan K. Sykulski, Sykulski, Jan, Hihat, Nabil, Lecointe, Jean-Philippe, Jean-Philippe Lecointe, Nabil Hihat, Krzysztof Komeza, Napieralska-Juszczak, E., Sykulski, J.K., Hihat, N., Lecointe, J-P., Komeza, K.   +14 more
core   +2 more sources