Results 61 to 70 of about 1,020 (264)

Predicting the Temperature Rise in Oil-Immersed Transformers Based on the Identification of Thermal Circuit Model Parameters

Energies
The temperature rise test for transformers is time-consuming, energy-intensive, and has low detection efficiency. To improve the efficiency of the temperature rise test and reduce energy consumption, this paper proposes a temperature rise prediction ...
Yujia Hu, Li Wang, Jialing Li, Huiying Weng, Zhiyao Zheng, Guohao Wen, Fan Zhang   +6 more
doaj   +1 more source

Hydrophobic MFI‐Type Zeolites via Alkali‐Cation‐Induced Defect Healing: Implications for Adsorbent and Catalyst Design

Advanced Materials, EarlyView.
Sub‐stoichiometric amounts of Na+ or K+ enhance defect healing during Silicalite‐1 (MFI) and TS‐1 calcination by promoting Si–O–Si annealing and healing framework vacancies. The resulting defect‐free zeolites are more hydrophobic and show improved butanol/water separation and improved activity and selectivity in the epoxidation of 1‐hexene, offering a ...
Christos Kanteler, Pau Ferri, Francisco Javier Escobar‐Bedia, Álvaro Mayoral, Alejandro Vidal‐Moya, Richard Kendra, Chen Lei, Miguel Palomino, Fernando Rey, Lukáš Grajciar, Christopher James Heard, Pedro Serna, Mercedes Boronat, Cristina Martínez, Manuel Moliner   +14 more
wiley   +1 more source

Construction of a gas–liquid two-phase mass transfer model for fault-generated gas in converter transformers and analysis of gas diffusion distribution characteristics

AIP Advances
Large oil-immersed transformers, due to their complex structure and high capacity, exhibit a significant time-delay effect when characteristic gases generated by internal faults diffuse to monitoring points.
Xudong Peng, Hao Zhan, Mengqi Li, Tao Xie, Meng Zhou, Haohao Qin, Chuan Zhang   +6 more
doaj   +1 more source

Review of Cooling Methods for Oil-Immersed Transformers

Highlights in Science, Engineering and Technology
With the growing demands for electricity, the safe and stable operation of transformers are crucial. Oil-immersed transformers are widely used in power systems due to their excellent heat dissipation and insulation properties. However, the traditional oil-immersed transformer cooling methods are difficult to meet the needs of modern power systems ...
Xinyue Gao, Shunyu Wang, Huaixuan Gao
openaire   +1 more source

Programmable Functional Silicification of DNA Origami Nanostructures

Advanced Materials, EarlyView.
This work introduces additional functionality into silica‐coated DNA origami nanostructures using non‐standard silica precursors. A fluorescent precursor enables enhanced intracellular tracking, while a disulfide‐containing reagent yields redox‐responsive, degradable silica coatings.
Anna V. Baptist, Lasse Guericke, Philipp Mauker, Oliver Thorn‐Seshold, Amelie Heuer‐Jungemann   +4 more
wiley   +1 more source

Effect of oil immersion on the horizontal flame spread over transformer insulating paperboard with different sizes

Case Studies in Thermal Engineering
Transformer oil and insulating paperboard are widely used in oil-immersed transformers and may be ignited in the event of device failure. The present study aims to investigate the effect of oil immersion on the horizontal flame spread over the ...
Yubiao Huang, Yi Guo, Fengju Shang, Jiaqing Zhang   +3 more
doaj   +1 more source

Multifunctional Wound Dressings: Melt Electrowritten Scaffolds Combined With Phytotherapeutic Composite Hydrogels

Advanced Materials Interfaces, EarlyView.
ABSTRACT The increasing prevalence of impaired wounds, caused mainly by diabetes or aging, alongside the growing number of bacterial infections, indicates the need for alternative tissue engineering solutions. In this study, we developed novel melt electrowritten (MEW) polycaprolactone (PCL) scaffolds incorporated with an alginate (Alg)–gelatin (Gel ...
Andrada‐Ioana Damian‐Buda, Aldo Roberto Boccaccini, Irem Unalan   +2 more
wiley   +1 more source

Nonwoven‐Based Textile Architectures for Energy Storage Applications: Materials, Preparation, Characterization, and Prospects

Advanced Materials Interfaces, EarlyView.
Nonwoven textile architectures are emerging as versatile platforms for next‐generation energy storage, demonstrating how tailored materials and fabrication strategies enhance ion transport, conductivity, flexibility, and scalability for high‐performance sustainable devices.
Tarikul Islam, Md. Hanif Munshi, Rijon Saha, Shaikh Almoon Hussain, Aqib Adnan Shafin, Shumsul Arefin, Md. Kamruzzaman   +6 more
wiley   +1 more source

Turning Water Into a Tool: From Degradation Pathways to Functional Engineering in Halide Perovskites

Advanced Materials Technologies, EarlyView.
Water exhibits a threshold‐dependent dual role in lead halide perovskites, acting either as a degradation trigger or as a powerful tool for defect passivation, recrystallization, and structural engineering. This review discusses how controlled water‐mediated interactions govern stability, dimensionality, and optoelectronic performance, providing ...
Raphaella T. S. Gonçalves, Gabriela O. Gera, Aryane Tofanello, Jose A. Souza, Andre L. M. Freitas   +4 more
wiley   +1 more source

Adsorption and Gas-Sensing Properties of Ag_n (n = 1-4) Cluster Doped GeSe for CH₄ and CO Gases in Oil-Immersed Transformer. [PDF]

Nanomaterials (Basel), 2022
Dong A, Sun M, Gui Y.
europepmc   +1 more source