Results 131 to 140 of about 8,767,028 (256)

Determinação de elementos traço em amostras biológicas tratadas com ácido fórmico por espectrometria de massa com plasma indutivamente acoplado [PDF]

, 2012
Tese (Doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-Graduação em QuímicaEste trabalho propõe a solubilização com ácido fórmico como um procedimento alternativo à digestão ácida no preparo ...
Tormen, Luciano
core  

Investigation of the Evolution Mechanism and Multiphysics Coupling in Tree‐Contact Single‐Phase‐to‐Ground Fault

High Voltage, EarlyView.
ABSTRACT Tree‐contact single‐phase‐to‐ground fault (TSF) is a common and hazardous type of failure in distribution networks. TSF is likely to occur when overhead conductors contact moist tree branches, potentially leading to insulation breakdown, posing serious threats to grid safety.
Wenjun Ning, Zuopeng Li, Mingxian Liu, Jianbo He, Tianxiang Chen, Shenli Jia   +5 more
wiley   +1 more source

Advanced Sensing Materials and Their Applications for Power Sensors

High Voltage, EarlyView.
ABSTRACT The construction of new‐generation power systems imposes stringent requirements on the safety and reliability of critical equipment, making accurate state perception essential for grid security and digital transformation. Sensing materials fundamentally determine sensor performance in terms of sensitivity, bandwidth, environmental adaptability
Weigen Chen, Yuxuan Song, Jun Hu, Xia Chen, Han Peng, Cheng He, Xing Fan, Wentao Zhang, Shijie Cheng   +8 more
wiley   +1 more source

Sustainable graphene-coated flax fabrics with dual photothermal/electrothermal functionality and antibacterial activity toward eco-friendly smart textiles

Only ∼3 wt% graphene was sufficient to produce conductive flax textiles with excellent electrothermal and photothermal performance. The coated fabrics also exhibited sunlight-induced antibacterial activity using a sustainable process.
Marie Jonsson, Mattias Calmunger, Mykhailo Zhybak, Oumaima Fakraoui, Nouha Ghorbel, Mohamed Sahbi Loukil, Sami Boufi, Erik Khranovsky, Fakraoui, Oumaima, Sahbi Loukil, Mohamed,, Khranovsky, Erik,, Zhybak, Mykhailo, Calmunger, Mattias, Ghorbel, Nouha, Boufi, Sami,, Fakraoui, Oumaima,, Calmunger, Mattias,, Boufi, Sami, Khranovsky, Erik, Ghorbel, Nouha,, Zhybak, Mykhailo,, Sahbi Loukil, Mohamed, Jonsson, Marie,, Jonsson, Marie   +23 more
core   +1 more source

Large‐Scale Applications of Plasma Technologies: Progresses and Challenges

High Voltage, EarlyView.
ABSTRACT Plasma technologies convert electrical power into energetic electrons, ions, reactive species, radiation and heat, thereby breaking through the bottleneck of purely thermal or chemical routes and bringing impressive changes to our world. This roadmap reviews the progress and challenges of plasma technologies from a large‐scale and application ...
Pankaj Attri, Liuyang Bai, Dmitry Batomunkuev, Xueke Che, Guoxing Chen, Zhitong Chen, Wei Cui, Liguang Dou, Zhi Fang, Yangyang Fu, Fausto Gallucci, Yiming Guo, Bangdou Huang, Yinghong Li, Sirui Li, Hua Liang, Liangliang Lin, Dingxin Liu, Xiangyang Liu, Xinpei Lu, Ruonan Ma, Lanlan Nie, Guanghui Niu, Yuge Ouyang, Tao Shao, Jing Sun, Yong Tang, Xin Tu, Sergey P. Vashchenko, Hang Wang, Xianjie Wang, Anke Weidenkaff, Yun Wu, Haohan Xie, Shaojun Xu, Zongxian Yang, Fangli Yuan, Cheng Zhang, Hao Zhang, Jishen Zhang, Shuai Zhang, Yejian Zhang, Zhe Zhang, Zhibo Zhang, Peng Zhao, Shicheng Zhao, Linlin Zhong, Renwu Zhou, Zhenhua Zhou, Xi Zhu, Yifei Zhu, Haohua Zong   +51 more
wiley   +1 more source

Live‐Line Work on High‐Voltage Transmission Overhead Lines: From FRP Flashover to Air‐Gap Breakdown Physics and Emerging Technologies

High Voltage, EarlyView.
ABSTRACT This paper presents a comprehensive review of live‐line work on high‐voltage transmission overhead lines, with a focus on insulation performance, air‐gap breakdown and discharge physics under realistic operating conditions. This review primarily covers journal publications from approximately 2014 to 2026, with emphasis on recent developments ...
Mona Ghassemi, Masoud Farzaneh
wiley   +1 more source

Nonlinear Conductive Materials for Adaptive Electric Overstress Control: Theory, Tailoring and Applications

High Voltage, EarlyView.
ABSTRACT Artificial intelligence computing, renewable energy integration and transportation electrification are driving electrical and electronic equipment towards higher power densities, higher voltage ratings and greater miniaturisation. Under these trends, insulation systems have become a key bottleneck for reliability and compactness.
Zhiwen Huang, Xianrui Jiang, Gang Sun, Juntong Zong, Ya Sun, Jun Hu, Jinliang He   +6 more
wiley   +1 more source

Lightning Overvoltage Protection Technologies for High‐Speed Railway Traction Power Supply Systems: Current Status and Future Prospects

High Voltage, EarlyView.
ABSTRACT The traction power supply system of high‐speed railways is exposed to complex lightning environments over the long term. Overvoltage generated by direct lightning or induced lightning can propagate along the overhead contact line, traction substations, onboard high‐voltage system and mobile grounding system, thereby threatening equipment ...
Guangning Wu, Yihan Fan, Ye Cao, Xinbo Lv, Yujun Guo, Song Xiao, Huazhi Zhang, Jun Hu, Baoguo Wang, Guoqiang Gao   +9 more
wiley   +1 more source

Review of Insulation Ageing and Lifecycle Management for Oil‐Immersed Power Equipment: From Conventional Testing Analysis to Artificial Intelligence Method

High Voltage, EarlyView.
ABSTRACT Oil‐immersed power equipment is a critical component for energy transmission and secure operation of modern power grids. The ageing of oil–paper insulation under combined electrical, thermal and mechanical stresses directly affects equipment lifetime and system reliability. This paper presents a comprehensive review of the ageing behaviour and
Ruijin Liao, Jian Hao, Jing Xu, George Chen, Huanchao Cheng, Jiacong Li, Xize Dai   +6 more
wiley   +1 more source

Numerical Investigation on Electrothermal Performance of AlGaN/GaN HEMTs with Nanocrystalline Diamond/SiNx Trench Dual-Passivation Layers. [PDF]

Nanomaterials (Basel)
Wang P, Deng C, Tang C, Tang X, Tao W, Wang Z, Tao N, Wang Q, Wang Q, Yu H.   +9 more
europepmc   +1 more source