Results 41 to 50 of about 12,345 (297)

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

Advanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele, Hossein Ipakchi, Tizazu H. Mekonnen   +2 more
wiley   +1 more source

Comparison and analysis of the fault arc characteristics of flexible DC transmission lines

The Journal of Engineering, 2019
VSC-HVDC grid is one of the important development directions of the smart grid in the future. The arc characteristics of transient fault on the transmission line are the theoretical basis for determining reclosing time and reclosing strategy of DC ...
Botong Li, Hanqing Cui, Yichao Liu, Bin Li   +3 more
doaj   +1 more source

Low frequency ac transmission for power systems [PDF]

, 2019
Conventional transmission systems utilize either high voltage ac (HVAC), operating at 50 or 60 Hz, or high voltage dc (HVDC) to transfer bulk power. The HVAC system is designed to operate at a high voltage level to reduce losses and increase bulk power ...
Ngo, Tuan Anh, 1985-
core   +1 more source

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

Advanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian, Jingkai Lin, Zhihao Tian, Selusiwe Ncube, Huayang Zhang, Emiliano Cortés, Hongqi Sun, Shaobin Wang   +7 more
wiley   +1 more source

Maximum efficiency of flexible AC transmission systems

International Journal of Electrical Power & Energy Systems, 2006
Abstract The maximum efficiency of a transmission line is a concern from design and operation viewpoints. Today varieties of flexible AC transmission system (FACTS) devices are being included to enhance system stability and to improve power transfer capability.
A.K. Pradhan, A. Routray, Banaja Mohanty
openaire   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

Advanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein, Tiago Carneiro Gomes, Eliza Ng, Simon Rondeau‐Gagné, Tricia Breen Carmichael   +4 more
wiley   +1 more source

Diode Rectifier-Based Low-Cost Delivery System for Marine Medium Frequency Wind Power Generation

Journal of Marine Science and Engineering
Offshore wind power has a broad development prospect, but with the development of offshore wind farms to the deep sea, the traditional high-voltage AC transmission has been difficult to adapt to the offshore wind power transmission distance and ...
Tao Xia, Yangtao Zhou, Qifu Zhang, Haitao Liu, Lei Huang   +4 more
doaj   +1 more source

Multi-pulse switching functions modeling of flexible AC transmission systems devices

, 2009
This article develops a novel switching function model for the static synchronous compensator, the static synchronous series compensator, and the unified power flow controller flexible AC transmission system devices based in a multi-pulse voltage-sourced
Ramirez, J.M., Zuniga-Haro, P.
core   +1 more source

Design Strategies and Emerging Applications of High‐Performance Flexible Piezoresistive Pressure Sensors

Advanced Functional Materials, EarlyView.
Flexible piezoresistive pressure sensors underpin wearable and soft electronics. This review links sensing physics, including contact resistance modulation, quantum tunneling and percolation, to unified materials/structure design. We highlight composite and graded architectures, interfacial/porous engineering, and microstructured 3D conductive networks
Feng Luo, Artur Ciesielski, Paolo Samorì   +2 more
wiley   +1 more source

Fault Detection and Localization in Transmission Lines with a Static Synchronous Series Compensator

Advances in Electrical and Computer Engineering, 2015
This paper proposes a fault detection and localization method for power transmission lines with a Static Synchronous Series Compensator (SSSC). The algorithm is based on applying a modal transformation to the current and voltage signals sampled at ...
REYES-ARCHUNDIA, E., GUARDADO, J. L., MORENO-GOYTIA, E. L., GUTIERREZ-GNECCHI, J. A., MARTINEZ-CARDENAS, F.   +4 more
doaj   +1 more source