Results 31 to 40 of about 25,281,968 (246)
Inversion of Oil-Immersed Paper Resistivity in Transformer Based on Dielectric Loss Factor
IEEE Access, 2019 The aging of the transformer oil-paper insulation distributes spatially, which results in changes in paper resistivity in different regions. This paper establishes an iterative inversion algorithm using the finite element method to calculate the oil ...
Jiangjun Ruan +5 more
doaj +1 more source
Digitally Printed Eco‐Friendly Electronic Devices
Advanced Functional Materials, EarlyView.Fabrication of electronics using eco‐friendly materials through digital printing routes is a promising strategy for improving life cycle sustainability and reducing the environmental impacts of conventional manufacturing. This review highlights state‐of‐the‐art eco‐friendly materials, green ink formulations, various resource‐efficient digital printing ...
Nitheesh M. Nair +5 more
wiley +1 more source
IEEE Access, 2019 This study explores the method of applying surface enhanced Raman scattering (SERS) in diagnosing the aging stage of oil-paper insulation equipment in the power system, which provides access to the on-line mornitoring of electrical equipment.
Dingkun Yang +4 more
doaj +1 more source
Aging State Evaluation of Oil-Paper Insulation Based on Fusion of Gray Texture and Oil Gas Features
Zhongguo dianli, 2020 Aiming at the problem of insufficient precision of aging information obtained by single partial discharge(PD) feature discrimination, a D-S evidence fusion recognition method based on PD gray texture and oil-gas features is proposed to analyze the aging ...
Dongchao LIU +6 more
doaj +1 more source
Biodegradable Conductors for Implantable and Wearable Transient Bioelectronics
Advanced Functional Materials, EarlyView.Biodegradable conductors are essential building blocks for transient bioelectronics, enabling temporary sensing, stimulation, and energy transfer while eliminating the need for device retrieval. This review summarizes biodegradable metals, conducting polymers, ionic conductors, and conductive composites, highlighting degradation mechanisms, material ...
Yicheng Zhu, Yijun Liu, Naoji Matsuhisa
wiley +1 more source
Ultra‐White Elastomeric Coatings for Daytime Radiative Cooling
Advanced Materials Technologies, EarlyView.Passive daytime radiative cooling meets elasticity in a new class of ultra‐white silicone coatings. Combining high solar reflectance with strong sky‐window emission, they hold surfaces below ambient temperature under full sunlight while remaining flexible and stretchable. This combination of cooling performance and mechanical flexibility enables energy‐
Abdulrahman Aljwirah +5 more
wiley +1 more source
Advanced Materials Technologies, EarlyView.This review presents multidimensional heat‐path engineering for thermal interface materials, showing how internal heat transport, interfacial contact and bondline formation, and processing‐defined pathway architectures together determine bonded‐joint thermal performance.
Jinsoo Na +7 more
wiley +1 more source
, 2012 Polarization and Depolarization Current (PDC) technique is an effective tool to assess the condition of oil-paper insulation system in power transformers. So far the PDC behaviors of mineral oil-paper insulation have been widely investigated.
Yang, Lijun +4 more
core +1 more source
Space Charge Transport Characteristic Considering the Non-Uniform Electric Effect of Ion Mobility
IEEE Access, 2020 Oil-paper insulation is the main insulating medium of converter transformers. Space charge can result in the distortion of electric field in oil-paper insulation, hence it's necessary to analyze the space charge transport characteristic and its influence
Zhaoxiang Zhang +5 more
doaj +1 more source
Advanced Materials Technologies, EarlyView.Cellulose fibers functionalized using cationic poly(Dimethyldiallylammonium chloride) (polyDADMAC) and laccase‐mediated ferulic acid system are processed into foams using different surfactants (Anionic, cationic, and non‐ionic). Fiber–surfactant interactions influence foam stabilization and porous structure formation during convective drying, producing
Abirami Senthil +4 more
wiley +1 more source