Results 91 to 100 of about 897,839 (267)

Understanding and Optimizing Li Substitution in P2‐Type Sodium Layered Oxides for Sodium‐Ion Batteries

Advanced Functional Materials, EarlyView.
This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous 
Mingfeng Xu, Giovanni Gammaitoni, Michael Häfner, Eduardo Villalobos‐Portillo, Carlo Marini, Matteo Bianchini   +5 more
wiley   +1 more source

Calculation and experimental verification of equivalent distributed circuit model based on refined iron core modelling

High Voltage
This research introduces an equivalent circuit model and a computational method to address complex mechanical motion issues through electromechanical analogies.
Yunpeng Liu, Guanyu Chen, Fuseng Xu, Tao Zhao, Hongliang Liu, Lu Sun, Jiayi Guo   +6 more
doaj   +1 more source

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

Advanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source

Effect of electric field on bubble generation and dissolution characteristics in oil–paper insulation

High Voltage
The interturn paper insulation of oil‐immersed power transformer windings, under the combined influence of electric fields, moisture, and conductor heating, will produce bubbles, which pose a significant threat to the insulation system. However, there is
Chaojie Yang, Tao Zhao, Yunpeng Liu, Jiajun Yang, Jiaxue Xu, Yingcong Xu   +5 more
doaj   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

Проектирование электрической части гидроэлектростанции 2000 МВт [PDF]

, 2016
Выпускная квалификационная работа 84 с., 14 рис., 38 табл., 12 источников, 1 приложение. Ключевые слова: гидроэлектростанция, электроэнергия, электрическая схема, короткое замыкание, электрическое оборудование.
Наумкин, Александр Сергеевич
core  

Single Pair of Weyl Points Evolve From Spin Group‐Protected Nodal Line in Half‐Metallic Ferromagnet V3S4

Advanced Functional Materials, EarlyView.
A spin group (SG)‐based mechanism is proposed to realize a single pair of Weyl points. PT‐symmetric nodal lines (NLs) persist under T‐breaking, protected by the combination of SG and P symmetry. When considering spin‐orbit coupling, the SG‐protected NL will split into Weyl points, which will also induce anomalous transport phenomena arising from ...
Shifeng Qian, Yao Zhang, Xiaowei Sheng, Xiuxian Yang, Gang Zhang, Junfeng Gao, Xiaotian Wang   +6 more
wiley   +1 more source

Повышение энергоэффективности погружных установок электроцентробежных насосов при добыче нефти [PDF]

, 2017
Объектом исследования является установка электроцентробежных насосов. Цель работы – рассмотреть и проанализировать методы по повышению энергоэффективности установки электроцентробежного насоса, современное оборудование, установленное в установки ...
Гагарин, Вадим Юрьевич
core  

Unlocking Ultra‐Long Cycle Stability of Li Metal Electrode by Separators Modified by Porous Red Phosphorus Nanosheets

Advanced Functional Materials, EarlyView.
Coating the standard polypropylene separator with a porous red phosphorous nanosheet greatly improves cycling performance in Li electrode cells. The phosphorus‐based surface chemistry deactivates electrolyte solvent decomposition and enhances the cleavage of F‐containing salt, resulting in an inorganic‐dominated electrolyte interphase (SEI) composition
Jiangpeng Wang, Mingzi Sun, Feng Lang, Zhijun Cai, Xitao Hu, Yao Gao, Chao Lin, Xueqiang Zhang, Bolong Huang, Quan Li   +9 more
wiley   +1 more source

Inversion of the temperature field in oil‐immersed reactors using optimal measurement points selected by random forest

IET Electric Power Applications
To address the subjective issue of selecting measurement points based on mainstream line methods for hotspot temperature inversion in oil‐immersed power equipment, this paper demonstrates an oil‐immersed reactor temperature field inversion method based ...
Jiayi Guo, Kaizhuang Zhu, Xiaopeng Li, Jingyun Zhao, Yunpeng Liu, Fangcheng Lv   +5 more
doaj   +1 more source