Results 121 to 130 of about 110,321 (309)

Study on the DC Discharge Model of Insulators Polluted by Typical Components Based on Effective Salt Deposit Density

Energies
Pollution flashover accidents of transmission line insulators have a wide impact and low reclosing success rates, posing a serious threat to the safe and stable operation of the power grid.
Wei Zhang, Shaoming Pan, Laisheng Zhong, Liangyuan Chen, Yuan Ma   +4 more
doaj   +1 more source

Integrated corner mirrors physically micromachined in silica-on-silica

, 2011
In integrated photonics, compact redirection of light can be achieved by corner (turning) mirrors, providing a route to higher density optical components.
Smith, P.G.R., Carpenter, Lewis, James C. Gates, Christopher Holmes, Rogers, Helen, Peter G.R. Smith, Holmes, C., Gates, J.C., Lewis G. Carpenter, Helen L. Rogers   +9 more
core   +1 more source

Magnetic Control of Chiral Hybridized Phonon Magnetic Moments in Ferrimagnets Fe2‐xZnxMo3O8

Advanced Functional Materials, EarlyView.
Helicity‐resolved magneto‐Raman spectroscopy reveals magnetic control of chiral phonon magnetic moments in polar ferrimagnet (ZnxFe2−xMo3O₈). Large spontaneous zero‐field phonon splittings, selective phonon–magnon coupling, and asymmetric Zeeman responses demonstrate that phonon chirality is governed by magnon‐phonon coupling and magnetization.
Youngsu Choi, Dirk Wulferding, Amit Pawbake, Clément Faugeras, Sivasakthi Kuppusamy, Raman Sankar, Gichan Son, Jeongwoo Kim, Kwang‐Yong Choi   +8 more
wiley   +1 more source

Lightweight image segmentation method for transmission line insulators based on MobileNetV2

河南理工大学学报. 自然科学版
ObjectivesTo address the issues of low accuracy in insulator segmentation in aerial images of transmission line inspections， limited computing power of edge devices， large model parameters， and insufficient real-time performance， a lightweight ...
Sun Shiming, Tang Yuanhe, Tai Tong, Wei Xueyun, Fang Wei   +4 more
doaj   +1 more source

Hot‐Film and Calorimetric Methods With Transient Heating for Measurement of High Biofluid Flow Rate

Advanced Functional Materials, EarlyView.
Accurate measurement of biofluid flow rate is vital for clinical diagnostics. We propose a transient heating strategy using short thermal pulses and peak temperature tracking to enhance the flow sensitivity of the hot‐Film and calorimetric methods. Simulations show how optimal heating time maximizes sensitivity across flow rates.
Yuanting Wei, Shupeng Li, Kyung Rok Pyun, Tianyu Yang, Bosung Kim, Haotian Yang, John A. Rogers, Yonggang Huang, Haohui Zhang   +8 more
wiley   +1 more source

MODELING OF OVERHEAD TRANSMISSION LINES FOR LIGHTNING OVERVOLTAGE CALCULATIONS MODELACIÓN DE LÍNEAS AÉREAS DE TRANSMISIÓN PARA EL CÁLCULO DE SOBRETENSIONES ORIGINADAS POR EL RAYO

Ingeniare: Revista Chilena de Ingeniería, 2010
Several parts of an overhead transmission line have to be included in a model adequate for lightning overvoltage studies: wires (shield wires and phase conductors), towers, grounding, insulator strings and air clearances.
Juan A Martínez-Velasco, Ferley Castro-Aranda   +1 more
doaj  

Research on Lightweight Method of Insulator Target Detection Based on Improved SSD

Sensors
Aiming at the problems of a large volume, slow processing speed, and difficult deployment in the edge terminal, this paper proposes a lightweight insulator detection algorithm based on an improved SSD. Firstly, the original feature extraction network VGG-
Bing Zeng, Yu Zhou, Dilin He, Zhihao Zhou, Shitao Hao, Kexin Yi, Zhilong Li, Wenhua Zhang, Yunmin Xie   +8 more
doaj   +1 more source

Magnetic proximity-enhanced Curie temperature of Cr-doped Bi2Se3 thin films

, 2015
Beam time awarded on ID32 at the ESRF (Proposal No. HC-1282) and on I10 at the Diamond Light Source (Proposal No. SI-10207) are acknowledged. T.H. acknowledges the John Fell Oxford University Press (OUP) Research Fund. A.A.B.
van der Laan, G, Kummer, K, van der Laan, G., Collins-McIntyre, LJ, Kummer, K., Figuorea, A.I., Hesjedal, T, Collins-McIntyre, Liam James, Figuorea, AI, Baker, A. A., Baker, A, Collins-McIntyre, Liam J., Figueroa, A. I., Hesjedal, Thorsten, Baker, Alexander, Hesjedal, T.   +15 more
core   +1 more source

Control of Polarization and Polar Helicity in BiFeO3 by Epitaxial Strain and Interfacial Chemistry

Advanced Functional Materials, EarlyView.
In BiFeO3 thin films, the interplay of interfacial chemistry, electrostatics, and epitaxial strain is engineered to stabilize homohelicity in polarization textures at the domain scale. The synergistic use of a Bi2O2‐terminated Aurivillius buffer layer and a highly anisotropic compressive epitaxial strain offers new routes to control the polar‐texture ...
Elzbieta Gradauskaite, Lilia Huynh, Natascha Gray, Quintin N. Meier, Marta D. Rossell, Morgan Trassin   +5 more
wiley   +1 more source

Counterion Dependent Side‐Chain Relaxation Stiffens a Chemically Doped Thienothiophene Copolymer

Advanced Functional Materials, EarlyView.
Oxidation of a thienothiophene copolymer, p(g3TT‐T2), via different doping strategies and dopant molecules resulted in materials with similar oxidation levels and a high electrical conductivity of ≈100 S cm−1. However, mechanical properties varied significantly, with sub‐glass transition temperatures and elastic moduli spanning from –44°C to –3°C and ...
Mariavittoria Craighero, Meghna Jha, Elsa Veronica Flores‐Vela, Joost Kimpel, Andreas Schaefer, Jiali Guo, Jesika Asatryan, Alberto Peinador Veiga, Shuichi Haraguchi, Per‐Anders Carlsson, Jaime Martín, Mariano Campoy‐Quiles, Christian Müller   +12 more
wiley   +1 more source