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Supported by two Office of Naval Research grants totaling $900,000, Wenxin Liu, of Lehigh University, will continue research into the advanced control of power systems through algorithmic design and hardware experimentation. He will examine real-time optimal power flow control in power electronic power distribution systems and investigate the coordination of heterogeneous generators within a naval ship s power system. Both projects could lead to improvements in civilian microgrid technology. ....
Credit: UrFU / Victoria Maltseva. Physicists at the Ural Federal University (UrFU, Ekaterinburg, Russia) will print unique magnets, magnetic systems, soft magnetic elements with a 3D printer. Samples made with this printer can be useful in almost any field from medicine to space. For example, it can be used by robotic surgical assistants to unclog arteries and veins or to place stents. According to Aleksey Volegov, associate professor of the Department of magnetism and magnetic nanomaterials at the UrFU, now scientists are deciding which kind of magnets they will start printing first. These will be magnets based on either samarium or cobalt compounds. They can be used in submarines, at space stations, on ships. That is, in those areas where there are very strong temperature changes and we need magnets with special properties in terms of stability, said Aleksey Volegov. Or it will be simple magnets based on an alloy of neodymium, iron, and boron, which work at normal tem ....
Physicists on the hunt for a rarely seen magnetic spin texture have discovered another object that bears its hallmarks, hidden in the structure of ultra-thin magnetic films, that they have called an incommensurate spin crystal. ....
E-Mail IMAGE: (a-b) Multimode interaction in a single optomechanical resonator creates an extensible synthetic gauge field; (c-e) Responses of optical photons and phonons in the cavity under different synthetic magnetic field intensities.. view more Credit: CHEN Yuan et al. The research team led by Prof. GUO Guangcan and Dr. DONG Chunhua from the University of Science and Technology of China realized synthetic gauge fields in a single optomechanical resonator by controlling geometric phase with the multimode interaction in the micro-resonator. By engineering a Hamiltonian, uncharged particles or bosonic excitations can acquire a path-dependent phase which realizes a synthetic magnetic field. Such synthetic gauge field can improve the precision of quantum many-body simulation and control over bosons. ....