Results 31 to 40 of about 75,745 (263)

Reglas que permiten explotar el conocimiento de los esquemas de relés para la localización de la sección en fallo; Rules that Allow the Knowledge that the Schemes Relays Offer for the Localization of the Section in Failure to Explode

Revista Científica de Ingeniería Energética, 2011
Se presentan las reglas que permiten, usando la información procedente de los relés operados e interruptoresdisparados, hacer la estimación de secciones en fallo en sistemas eléctricos de potencia (SEP).  Se ...
Marta Bravo de las Casas, Humberto Machado Fernández, Zenaida García Valdivia, Alain Álvarez Chávez, Isis Bonet Cruz, Norma E Cabrera González   +5 more
doaj  

Development and Experimental Research of VFTO Measuring Sensor

Sensors, 2022
Very fast transient overvoltage (VFTO) generated by an operating disconnector is one of the main reasons for electromagnetic disturbance in gas-insulated switchgear (GIS) substations.
Zihan Teng, Jun Zhao, Qi Wang, Haonan Lu, Jiangong Zhang   +4 more
doaj   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source

Sistema de diagnóstico para la estimación de secciones en fallo en sistemas eléctricos de potencia; A Diagnostic Systems to Estimate Faulty Sections in Power Electric Systems

Revista Científica de Ingeniería Energética, 2011
El sistema de diagnóstico para la estimación de secciones en fallo (SDESF) para sistemas eléctricos depotencia (SEP) expuesto en el trabajo, usa la información procedente de los relés operados e interruptoresdisparados.
Marta Bravo de las Casas, Humberto Machado Fernández, Zenaida García Valdivia, Alain Álvarez Chávez, Isis Bonet Cruz, Norma E Cabrera González   +5 more
doaj  

Customized composition of lithium metal solid-electrolyte interphase by electric field modulation of anion motion direction

Nature Communications
In high-voltage lithium-metal battery systems, electrolyte characteristics are crucial for achieving the optimal balance between non-flammability and battery performance.
Shengtao Xu, Lijun Zheng, Xiaoyu Guo, Rong Gu, Shuaiqi Gong, Jinting Xu, Sheng Zhu, Qingwei Gao, Qunjie Xu, Penghui Shi, Xin Zhao, Yulin Min, Jun Lu   +12 more
doaj   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

RETOS A LAS PROTECCIONES ELÉCTRICAS EN LAS REDES DE DISTRIBUCIÓN CON GENERACIÓN DISTRIBUIDA CHALLENGES OF DISTRIBUTED GENERATION ON THE ELECTRIC PROTECTION IN DISTRIBUTION NETWORKS

Ingeniare: Revista Chilena de Ingeniería, 2009
Las redes de distribución han sido diseñadas para que la potencia fluya en una sola dirección. La introducción de la Generación Distribuida (GD) hace que esta consideración ya no sea válida.
Marta Bravo de las Casas, Yumil Yanez Boza   +1 more
doaj  

A Uniform Conductive Carbon Coating of Nitrogen‐Doped Carbon Improves the Electrochemical Performance of LiMn0.7Fe0.3PO4 Cathode Material for Lithium‐ion Batteries

ChemElectroChem
The practical application of LiMn1−xFexPO4 as a cathode material is hindered considerably by its poor electronic conductivity and slow lithium‐ion diffusion.
Hesen Xiong, Zongliang Zhang, Jiaxin Dai, Pei Zhao, Kai He, Jie Gao, Dr. Qiang Wu, Dr. Baofeng Wang   +7 more
doaj   +1 more source

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

Advanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar, Akash Vyas, Mohammad Aatif Qazi, Nashit Jalal, Maria Ophelia Jarligo, Mostafa Yakout, Jing Liu, André McDonald   +7 more
wiley   +1 more source

Feasibility of Nitrogen as a Carrier Gas for Inconel Cold Spray in Hydropower Application

Advanced Engineering Materials, EarlyView.
N2, despite being nearly two orders of magnitude cheaper than He, is a feasible carrier gas for cold spray Inconel coatings in hydropower repair applications when higher gas temperature and pressure are used. Reducing powder size significantly improved cavitation resistance, while the addition of fine chromium carbide particles further enhanced erosion
Tianhao Wang, Mayur Pole, Tingkun Liu, Kenneth A. Ross, Christopher B. Smith   +4 more
wiley   +1 more source