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This paper presents analysis methods for improving the electromagnetic characteristics of a high-speed electrical multiple unit (EMU) train with a 1:1 finite-element analysis model. Both electromagnetic distribution diagrams and numerical field data have been analyzed. With this method, optimal electromagnetic conditions for the EMU compartment could be feasibly obtained, while the optimization evaluation...
Super-resolution microscopy such as STED [1, 2], SSIM [3], or PALM/STORM [4] placed their respective critical requirements on the fluorescent labeling, thereby limits their applications in biology. Polarization as the fourth dimension of fluorescence can also provide intensity modulation, yet without the restriction to specific fluorophores. Here we present a new technique termed super-resolution...
In our previous work, we use accidental degeneracy to realize conical dispersions at Γ point (k = 0) in two-dimensional (2D) photonic crystals (PCs) [1]. The conical dispersion consists of a triply degenerate state with two linear bands touching at the Dirac-like point and an additional flat band intersecting it at the same frequency. If the conical dispersion is derived from monopole and dipole excitations,...
Non-Hermitian systems, such as open systems and systems with asymmetric losses, are ubiquitous in nature and have drawn a lot of attentions for a long time. The exceptional points (EPs) that can exist in such systems when two eigenstates coalesce are the origin of a wide range of novel phenomena in different branches of physics. Most of these phenomena can be understood by considering a 2 × 2 non-Hermitian...
This paper presents a microelectromagnetic power generator with integrated magnets that can be fabricated on silicon wafers in a batch process. The generator is fabricated by MEMS technologies and characterized at different vibration frequencies, amplitudes and load resistances. This compact generator occupies a volume of 15×13×0.4mm3, as no external permanent magnets are needed. Experimental results...
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