Results 21 to 30 of about 85,475 (268)
Energies, 2022 In this paper, the design and analysis of a 30 kW, 30,000 r/min high-speed permanent magnet motor (HSPMM) for compressor application are provided. In order to provide a reasonable electromagnetic design scheme, the electromagnetic performances of the ...
Zhenning Qi +3 more
doaj +1 more source
A Balanced-to-Unbalanced Hybrid Ring With Arbitrary Power Division Ratio
IEEE Access, 2018 This paper presents a new balanced-to-unbalanced (BTU) hybrid ring with arbitrary power division ratio. Standard S-parameters and mixed-mode S-parameters are adopted to describe the performance requirements of the BTU hybrid ring.
Lin Li, Lin Sheng Wu, Jun-Fa Mao
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Design of a Portable Susceptometer With No Electromagnets
IEEE Transactions on Instrumentation and MeasurementPreprint
Rivelles García, Alejandro +5 more
openaire +3 more sources
Energies, 2021 The motor is an important part of the flywheel energy storage system. The flywheel energy storage system realizes the absorption and release of electric energy through the motor, and the high-performance, low-loss, high-power, high-speed motors are key ...
Wen Ji +5 more
doaj +1 more source
Design and analysis of ultra‐wideband decoupling structure based on polarization mismatch
Electronics LettersIn this work, a polarization rotating surface is designed, analyzed, and applied to the decoupling of ultra‐wideband antennas. A method of using dual‐size combined rings is proposed to expand the operating bandwidth to 4.8 to 18.2 GHz, and the ...
Jianpu Qiao +4 more
doaj +1 more source
Photonic-Assisted E-Band Millimeter-Wave 1 × 2 MIMO Near-Sea-Surface Long-Distance Communication
PhotonicsE/W-band millimeter-wave signals are highly promising for long-distance offshore wireless communications. However, the high humidity over the sea surface, together with the continuous fluctuation of sea waves, gives rise to severe near-sea-surface ...
Shuowei Wang +4 more
doaj +1 more source
IEEE Access, 2017 Hexagonal boron nitride intercalated multilayer grapheme (hBN-IMLG) promises one of the potential materials for high performance tunable passive components in terahertz (THz) band, due to its good electrical properties and impressive tunability with ...
Xiang Li, Lin-Sheng Wu, Jun-Fa Mao
doaj +1 more source
IEEE Access, 2020 A diagnosing method for phased antenna array element failures is proposed. The element excitation amplitudes and phases are reconstructed by a compressed sensing based approach, in which the radiated electric fields of the array are sampled by a single ...
Can Xiong, Gaobiao Xiao
doaj +1 more source
Advanced Engineering Materials, Volume 27, Issue 6, March 2025.ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur +5 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee +7 more
wiley +1 more source