Results 71 to 80 of about 1,101,419 (336)

Duplex Stainless Steel Laser‐Surface Textured: Stability in Brine Solution

Advanced Engineering Materials, EarlyView.
Controlled laser‐surface treatment (LST) of duplex DSS2205 steel is performed to increase its stability in brine solution under cyclic electrochemical assays. The superior protection with respect to flat and smooth panels is attributed to the presence of FeCr2O4 as the main protective oxide layer in the LST surface, after corrosion tests. The stability
Mohammad Rezayat, Hamidreza Enshaei, Elaine Armelin, José I. Iribarren, Antonio Mateo, Miguel Morales   +5 more
wiley   +1 more source

Reduction of Oxide Inclusions During the High‐Frequency Welding of Steel via a Nonthermal Ar/H2 Plasma Jet

Advanced Engineering Materials, EarlyView.
High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin, Lienhard Wegewitz, René Gustus, Henning Wiche, Wolfgang Maus‐Friedrichs   +4 more
wiley   +1 more source

3D‐Printed Giant Magnetoresistive (GMR) Sensors Based on Self Compliant Springs

Advanced Engineering Materials, EarlyView.
This work explores 3D‐printed GMR sensors utilizing self‐compliant spring structures and conductive PLA composites. By optimizing arm width, we achieved high piezoresistive (0.34%/mm) and magnetoresistive (0.77%/mT) sensitivities. Demonstrated through Bluetooth‐integrated pressure and magnetic position sensing, these full printed low‐cost, customizable
Josu Fernández Maestu, Nelson Pereira, Javier Vicente, Carmen Rial Tubio, Senentxu Lanceros‐Méndez   +4 more
wiley   +1 more source

Fault protection method of source-grid-storage microgrid based on equivalent distance criteria

电力工程技术
With the continuously challenges of energy and environmental, the development of distributed power generation technologies focused on renewable energy is rapidly advancing.
ZHOU Qian, ZHU Dandan, WANG Chenggen
doaj   +1 more source

Arc Phenomena in low-voltage current limiting circuit breakers [PDF]

, 2010
Circuit breakers are an important safety feature in most electrical circuits, and they act to prevent excessive currents caused by short circuits, for example. Low-voltage current limiting circuit breakers are activated by a trip solenoid when a critical
Budd, Chris, Dellar, Paul, McGuinness, M., Richardson, G., Thompson, Alice B.   +4 more
core  

Impact of built-in fields and contact configuration on the characteristics of ultra-thin GaAs solar cells

, 2016
We discuss the effects of built-in fields and contact configuration on the photovoltaic characteristics of ultrathin GaAs solar cells. The investigation is based on advanced quantum-kinetic simulations reaching beyond the standard semi-classical bulk ...
Datta S., Kayes B., Urs Aeberhard, Würfel P.   +3 more
core   +1 more source

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

Accounting power supply schemes for traction substations in the calculation of short circuits in the AC traction network

Вестник Научно-исследовательского института железнодорожного транспорта, 2019
When calculating short-circuit currents in the AC traction network, it is assumed that each of the traction substations receives power from uncoupled external power supply sources with known resistances. In some cases, especially when powering a group of
Yu. I. Zharkov, N. A. Popova, E. P. Figurnov   +2 more
doaj   +1 more source

Short‐circuit current difference of parallel strands in winding turns and its influence on the distribution of electromagnetic force

IET Electric Power Applications, 2023
Transformer winding turns often consist of multiple parallel strands. The spatial position variation of each strand affects the leakage inductance of each branch, resulting in an uneven distribution of short‐circuit currents within the winding turns. And
Yi Zhao, Jian Si, Mingkai Jin, Tao Wen, Penghong Guo, Weijiang Chen   +5 more
doaj   +1 more source

Enhanced Optoelectronic Response in Bilayer Lateral Heterostructures of Transition Metal Dichalcogenides

, 2019
Two-dimensional lateral heterojunctions are basic components for low-power and flexible optoelectronics. In contrast to monolayers, devices based on few-layer lateral heterostructures could offer superior performance due to their lower susceptibility to ...
Balicas, Luis, Gutiérrez, Humberto R., Lu, Zhengguang, Memaran, Shahriar, Márquez, Tania Díaz, Nugera, Florence Ann, Sahoo, Prasana K., Smirnov, Dmitry, Xin, Yan, Zheng, Wenkai, Zhigadlo, Nikolai D.   +10 more
core   +1 more source