Results 31 to 40 of about 15,243,501 (296)

An efficient electromagnetic transient modeling and simulation method for ANPC three-level converters

Zhejiang dianli
According to a small-step real-time simulation study on active neutral-point clamped （ANPC） three-level converters， existing electromagnetic transient modeling methods are inferior in model accuracy， computational efficiency， simulation scale， etc.
LI Yang, TIAN Fang, ZHANG Xing, MU Qing
doaj   +1 more source

Research on borehole transient electromagnetic positioning method of azimuthal coil scanning detection

Meitan xuebao
The borehole transient electromagnetic method is used to detect the long-range water-bearing bodies around the borehole wall by using the advanced water exploration borehole in the heading roadway, which avoids the “one’s opinion in one hole” because the
Jiulong CHENG, Chenglin JIANG, Yao LI, Renxi BAI   +3 more
doaj   +1 more source

Rotary 3D Printing With Integrated Electroplating

Advanced Engineering Materials, EarlyView.
A rotary material extrusion platform integrates localized copper electroplating with printing and encapsulation to fabricate cylindrical polymer–metal structures containing fully embedded, low‐resistance conductive pathways that enable internal Joule heating and thermally activated shape‐memory responses.
Antonio Zagaria, Nicola Larovere, Moslem Mohammadi, Gianluca Percoco, Ali Zolfagharian, Gianni Stano   +5 more
wiley   +1 more source

The influence of electromagnetic field models on the damper winding loss and heat calculation results of tubular hydro‐generator

Electronics Letters
This study investigates the effect of electromagnetic field models on tubular hydro‐generator damper winding losses and heat calculations using an on‐site 36‐MW such generator as an example.
Meng‐qi Xu, Wen‐hao Hu, Zhi‐ting Zhou, Zhen‐nan Fan   +3 more
doaj   +1 more source

Wearable Smart Patches on Sustainable Chitosan With Reversible Microbial Growth‐Inhibitory Properties

Advanced Functional Materials, EarlyView.
ABSTRACT Chitosan, a polysaccharide upcycled from biowaste, has long promised sustainable, biocompatible, and antimicrobial films and devices, an appeal reinforced by its recent regulatory recognition, with several chitosan‐based antibacterial dressings gaining clearance through the Food and Drug Administration's 510(k) pathway.
Jacopo Nicoletti, Kubra Kocak, Andrea Michel, Enrico Cavarzerani, Ali Raza, Petr Rohzin, Nouha Loudhaief, Saimir Frroku, Nicolò Baldovin, Hazrat Bilal, Alvise Perosa, Maurizio Selva, Flavio Rizzolio, Luca Sbuelz, Sabrina Tamburini, Domenico De Fazio, Giovanni Antonio Salvatore   +16 more
wiley   +1 more source

Scattering of transient electromagnetic waves in reciprocal bi-isotropic media [PDF]

, 1991
In this paper propagation of transient electromagnetic waves in a reciprocal bi-isotropic medium is presented. The constitutive relations are convolution integrals with two susceptibility kernels that model the medium.
Kristensson, Gerhard, Rikte, Sten, Kristensson, Gerhard,, Lund University., Rikte, Sten,   +4 more
core   +1 more source

A Novel Electromagnetic Transient Simulation Method of Large-Scale AC Power System With High Penetrations of DFIG-Based Wind Farms

IEEE Access, 2022
With the ever-expanding deployment of renewable energy sources (RESs), the short-time transients have more significant impacts on shaping the characteristics of large power grids.
Yifeng Dong, Jianbo Guo, Shihong Miao, Junxian Hou, Ji Han, Shicong Ma, Tiezhu Wang   +6 more
doaj   +1 more source

Thermal modeling of the cylindrical electromagnets in transient and steady-state modes

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, 2022
Purpose An excessive increase in temperature will reduce the lifespan and even burn the coil. The variety of materials in the structure of the electromagnet along with its multi-layer winding creates a complex and heterogeneous thermal structure. There are very few researches that are completely focused on the thermal analysis of electromagnets.
Ali Hashemi, Parsa Yazdanpanah Qaraei, Mostafa Shabanian   +2 more
openaire   +1 more source

Optoelectronic Synaptic Devices Using Molecular Telluride Phase‐Change Inks for Three‐Factor Learning

Advanced Functional Materials, EarlyView.
Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner, Dhananjeya Kumaar, Giacomo Torti, Killian Keller, Till Zellweger, Florian M. Schenk, Christoph Weilenmann, Daniel Chelladurai, Vara Prasad Jonnalagadda, Ghazi Sarwat Syed, Vanessa Wood, Jürg Leuthold, Alexandros Emboras, Maksym Yarema, Mathieu Luisier   +14 more
wiley   +1 more source

Electromagnetic Transient Modeling and Simulation of Power Converters Based on a Piecewise Generalized State Space Averaging Method

IEEE Access, 2019
Large-scale photovoltaic (PV) power plants connected to the grid leads to the complex calculations in modeling and simulation of the power system, especially in the electromagnetic transient progress.
Lei Wang, Xinchang Deng, Pingping Han, Xianjun Qi, Xiaolong Wu, Mengdi Li, Haihua Xu   +6 more
doaj   +1 more source