Results 1 to 10 of about 446,660 (328)
Acoustic non-Hermitian skin effect from twisted winding topology [PDF]
Nature Communications, 2021 The recently discovered non-Hermitian skin effect (NHSE) manifests the breakdown of current classification of topological phases in energy-nonconservative systems, and necessitates the introduction of non-Hermitian band topology.
Li Zhang +13 more
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Infrastructures, 2022 In modern transportation projects, the demand for skewed bridges is increasing. Restrictive site constraints, particularly in urban infrastructure projects, yield severely skewed bridges that demand specific design and construction considerations.
Jessica Mawson +4 more
doaj +1 more source
Phototunable self-oscillating system driven by a self-winding fiber actuator
Nature Communications, 2021 Self-oscillating systems that enable autonomous, continuous motions driven by an unchanging, constant stimulus would have significant applications in intelligent machines, advanced robotics, and biomedical devices.
Zhiming Hu, Yunlong Li, Jiu‐an Lv
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Correspondence between Winding Numbers and Skin Modes in Non-Hermitian Systems. [PDF]
Physical Review Letters, 2019 We establish exact relations between the winding of "energy" (eigenvalue of Hamiltonian) on the complex plane as momentum traverses the Brillouin zone with periodic boundary condition, and the presence of "skin modes" with open boundary conditions in non-
Kai Zhang, Zhesen Yang, C. Fang
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Electrical Machines Winding Technology: Latest Advancements for Transportation Electrification
Machines, 2022 The ever-increasing demand for higher-power dense electrical machines has resulted in different electrical, mechanical, and thermal stresses, which can eventually cause machine failure.
Ahmed Selema, M. Ibrahim, P. Sergeant
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International Journal of Electrical and Electronic Engineering & Telecommunications, 2022 The transformer is critical equipment in electrical power systems as it is continuously exposed to various failures. Inter-turns fault in the transformer reduces the turns of the winding, thus it can be detected using a transformer-turns-ratio (TTR) test.
Ali Salman Abdul Razzaq +4 more
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Skin effect and winding number in disordered non-Hermitian systems [PDF]
Physical review B, 2020 Unlike their Hermitian counterparts, non-Hermitian (NH) systems may display an exponential sensitivity to boundary conditions and an extensive number of edge-localized states in systems with open boundaries, a phenomena dubbed the "non-Hermitian skin ...
J. Claes, T. Hughes
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Real-space representation of the winding number for a one-dimensional chiral-symmetric topological insulator [PDF]
, 2021 The winding number has been widely used as an invariant for diagnosing topological phases in one-dimensional chiral-symmetric systems. We put forward a real-space representation for the winding number.
Ling Lin, Yongguan Ke, Chaohong Lee
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Plants, 2020 During a 33-year sampling period, we observed species richness and calculated species evenness and Shannon Diversity for understory woody seedlings and herbaceous species on three small islands in Lake Winnipesaukee, New Hampshire, and noted consistency ...
Marjorie M. Holland, Mark Winkler
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IEEE Transactions on Transportation Electrification, 2021 While the electromagnetic aspects of hairpin windings are actively being investigated and discussed in recent literature, including the design rules together with the loss calculation and reduction techniques, the thermal performance and modeling aspects
Fengyu Zhang +7 more
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