Results 61 to 70 of about 524,603 (302)

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

open access: yesAdvanced 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
wiley   +1 more source

Efficient GPU-Based Electromagnetic Transient Simulation for Power Systems With Thread-Oriented Transformation and Automatic Code Generation

open access: yesIEEE Access, 2018
Electromagnetic transients (EMT) simulation is the most accurate and intensive computation for power systems. Past research has shown the potential of accelerating such simulations using graphics processing units (GPUs).
Yankan Song   +5 more
semanticscholar   +1 more source

Modeling of MMC for Fast and Accurate Simulation of Electromagnetic Transients: A Review [PDF]

open access: yesEnergies, 2017
Over the past decade, modular multilevel converters have evolved as the preferred choice for high voltage conversion systems. The design of the converter poses a computational challenge to the classical electromagnetic transient simulation techniques, for which the existing literature proposes numerous simplified and computationally-efficient ...
Salman Khan, Elisabetta Tedeschi
openaire   +4 more sources

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

open access: yesAdvanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades   +7 more
wiley   +1 more source

Power Transmission Limits Assessment on PCC of Grid-connected Wind Power Based on Nodal Electromagnetic Transient Thevenin Equivalence

open access: yesTaiyuan Ligong Daxue xuebao
Purposes Transmission power limit exists in point of common coupling (PCC) of grid-connected wind power, when the transmission power exceeds the limit, it may lead to voltage instability and broadband oscillation problems, threatening the safety and ...
GUO Xiaolong   +4 more
doaj   +1 more source

A Study on Transient Electromagnetic Interpretation Method Based on the Seismic Wave Impedance Inversion Model

open access: yesOpen Geosciences, 2019
A comprehensive transient electromagnetic interpretation method based on seismic wave impedance inversion has been proposed according to the advantages of seismic and transient electromagnetic exploration methods to mitigate of hidden water inrush ...
Yaoning Liu   +4 more
doaj   +1 more source

n‐Type Polymer Radio Frequency Rectifiers Operating at 18.5 GHz

open access: yesAdvanced Materials, EarlyView.
Combining an n‐doped polymer semiconductor with wafer‐scale asymmetric planar electrodes featuring work function‐engineered contacts yields radio‐frequency diodes and rectifying circuits operating at up to 18.5 GHz. The devices combine scalable manufacturing with an operating frequency previously unattainable by large‐area organic electronics ...
Lazaros Panagiotidis   +19 more
wiley   +1 more source

Effect of the arc model on electromagnetic interference caused by GIS switch operations in 3D full wave simulation

open access: yes电力工程技术
Transient ground potential rise (TGPR) and transient electromagnetic field generated by the switching operation of gas insulated switchgear (GIS) pose a great threat to the safety of the personnel in the station as well as the stable operation of the ...
Wenda JIA   +5 more
doaj   +1 more source

Characteristics Analysisof Transient Process Electromagnetic Torque of Generator with Stator Winding Short Circuit Fault

open access: yesJournal of Harbin University of Science and Technology, 2019
In order to study the change characteristics of electromagnetic torque in the transient process of stator internal short circuit fault, based on virtual work principle in dynamic, the electromagnetic torque of transient process after stator winding ...
CHEN Chao   +3 more
doaj   +1 more source

Co-Simulation of Electromagnetic Transients and Phasor Models: A Relaxation Approach [PDF]

open access: yesIEEE Transactions on Power Delivery, 2016
Co-simulation opens new opportunities to combine mature electromagnetic transients (EMT) and phasor-mode (PM) solvers, and takes advantage of their respective high accuracy and execution speed. In this paper, a relaxation approach is presented, iterating between an EMT and a PM solver.
Plumier, Frédéric   +3 more
openaire   +3 more sources

Home - About - Disclaimer - Privacy