Results 51 to 60 of about 1,439,492 (338)

Research on Real-time Intelligent Load Control Technology among Giant Hydropower Station Group under High-intensity Peak-load and Frequency Regulation Demand

MATEC Web of Conferences, 2018
The paper conducts an in-depth study on the real-time dispatching involved in joint operation among giant cascade hydropower stations with high-intensity peak-load and frequency regulation demand, and proposes anintelligent load control technology for ...
Luo Wei, Zhong Qingxiang, Gu Faying
doaj   +1 more source

Interfacial Contact Engineering Enables Giant‐Performance Semiconductor Nanomembrane Optoelectronic Devices

Advanced Functional Materials, EarlyView.
This work investigates modifying interfacial contacts in realizing giant‐performance semiconductor nanomembrane optoelectronics. Strategies, including surface reaction and buffer layer work‐function modulation, are explored to boost the Schottky barrier. An emerging material of YbOx is utilized for near‐ideal Ohmic contact.
Yibo Zhang, Gloria Vytas, Haozhe Wang, Sara Almenabawy, Zheng‐Hong Lu, Nazir P. Kherani   +5 more
wiley   +1 more source

Proposed methodology for online frequency response analysis based on magnetic coupling to detect winding deformations in transformers

High Voltage, 2019
Frequency response analysis is widely used as a method for the offline diagnosis of winding deformations in power transformers. To apply it to a working transformer, people need to determine how to inject the excitation signal and measure the response ...
Yangchun Cheng, Jiangang Bi, Jiangang Bi, Wenzhi Chang, Yuan Xu, Xiaohua Pan, Xianwei Ma, Shuai Chang   +7 more
doaj   +1 more source

Advanced Micro‐OLED Integration on Thin and Flexible Polymer Neural Probes for Targeted Optogenetic Stimulation

Advanced Functional Materials, EarlyView.
This paper introduces a flexible neural probe with integrated micro‐OLEDs on a flexible substrate for the first time, featuring 8 micro‐OLEDs and recording electrodes for optogenetics. It uses advanced encapsulation and an IAI anode for durability, emitting 470 nm light for ChR2 activation, enabling high‐resolution, minimally invasive stimulation ...
Somin Lee, Mi Kyung Kim, Seonil Kwon, Jia Chee Leong, Byeongju Noh, Junhee Sim, Eun Gyo Jeong, Hyunjoo J. Lee, Kyung Cheol Choi   +8 more
wiley   +1 more source

Sensitivity Analysis and Optimization of Operating Parameters of an Oxyfuel Combustion Power Generation System Based on Single-Factor and Orthogonal Design Methods

Energies, 2020
The main purpose of this paper is to quantitatively analyze the sensitivity of operating parameters of the system to the thermodynamic performance of an oxyfuel combustion (OC) power generation system.
Zhiyu Zhang, Rongrong Zhai, Xinwei Wang, Yongping Yang   +3 more
doaj   +1 more source

Improving the Capacity Retention of Poly(vinylphenothiazine) as Battery Electrode Material by Pore Size Engineering of Porous N‐Doped Carbon Nanospheres as Conductive Additive

Advanced Functional Materials, EarlyView.
By using (meso)porous N‐doped carbon nanospheres with tailored intraparticle porosity and constant particle size as conductive carbon in PVMPT‐based organic battery electrodes, the complete volume of the carbon is accessible for the immobilization of PVMPT, resulting in high accessible specific capacities while maintaining a good rate capability and ...
Niklas Ortlieb, Bärbel Tengen, Verena Perner, Martin Winter, Birgit Esser, Peter Bieker, Anna Fischer   +6 more
wiley   +1 more source

Hyperbranched Interpenetrating Hydrogen Bond Network (HIHBN) Proton Exchange Membrane for Fuel Cells Above 220 °C

Advanced Functional Materials, EarlyView.
A novel polymer electrolyte membrane with a hyperbranched interpenetrating hydrogen bond network structure is developed. The unique structure of the hyperbranched polymer contributes to a high glass transition temperature exceeding 400 °C, enabling its operation at elevated temperatures for fuel cell applications.
Lingping Zeng, Dehua Dong, Jun Lu, Kaiqiang He, Xiangcheng Liu, Jianchuan Wang, Zidong Wei, Matthieu Gresil, Julian Ratcliffe, Zhikao Li, Huanting Wang   +10 more
wiley   +1 more source

Dual‐Mode Film Based on Highly Scattering Nanofibers and Upcycled Chips‐Bags for Year‐Round Thermal Management

Advanced Functional Materials, EarlyView.
Intelligent radiative cooling devices, adaptable to various weather conditions, have the potential for year‐round energy savings. This study introduces a sustainable dual‐mode film made from polycaprolactone nanofibers and upcycled chip bags for effective thermal management.
Qimeng Song, Stefan Rettinger, Chengzhang Xu, Ulrich Mansfeld, Markus Retsch   +4 more
wiley   +1 more source

Distribution of Polychlorinated biphenyls in Environmental samples from an electrical power station in Lagos, Nigeria

Journal of Taibah University for Science, 2018
Concentration levels of 12 PCB congeners (PCB-18, 28, 31, 44, 52, 101, 153, 118, 138, 149, 180 and 194) were determined in soil, dust, sediment and water samples collected at Ijora Olopa Power Station, Lagos, Nigeria.
Bilikis Temitope Folarin, Temilola O. Oluseyi, Aderonke O. Oyeyiola, Kehinde O. Olayinka, Babajide I. Alo   +4 more
doaj   +1 more source

Structural and parametric synthesis of anti-average control algorithms for realizing adaptive frequency operating automaticselectrotechnical systems

Известия высших учебных заведений: Проблемы энергетики, 2019
In the event of accidents in power systems associated with a reduction in frequency in order to prevent the complete repayment of the energy district and accelerate the elimination of the accident, frequency division automatics (FDA) are used.
V. R. Ivanovа, I. Y. Ivanov, V. V. Novokreshchenov   +2 more
doaj   +1 more source