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Gudeta Berhanu Benti, Jan-Olov Aidanpää and Rolf Gustavsson
In 2015, a 45 MW vertical hydropower machine exhibited excessive vibration after refurbishment. Measurements revealed a substantial bearing clearance at the lower generator guide bearing. Consequently, the bearing was unable to generate sufficient opposi...
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Yi Lu, Dongyan Wei and Hong Yuan
Magnetic positioning is a promising technique for vehicles in Global Navigation Satellite System (GNSS)-denied scenarios. Traditional magnetic positioning methods resolve the position coordinates by calculating the similarity between the measured sequenc...
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Yingke Liao, Guiping Zhu, Guang Wang, Jie Wang and Yanchao Ding
Magnetohydrodynamic (MHD) is one of the most promising novel propulsion technologies with the advantages of no pollution, high specific impulse, and high acceleration efficiency. As the carrier of this technology, the MHD accelerator has enormous potenti...
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Samuel Haeuser, Richard H. J. Kim, Joong-Mok Park, Randall K. Chan, Muhammad Imran, Thomas Koschny and Jigang Wang
One manifestation of light-Weyl fermion interaction is the emergence of chiral magnetic effects under magnetic fields. Probing real space magnetic responses at terahertz (THz) scales is challenging but highly desired, as the local responses are less affe...
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Luca Leporini, Ferhat Yaman, Tommaso Andreussi and Vittorio Giannetti
Hall thrusters are plasma-based devices that have established themselves as one of the most attractive and mature electric propulsion technologies for space applications. These devices often operate in a regime characterized by low frequency, large ampli...
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