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Ultrasonic transcutaneous energy transfer (UTET) may be a preferable technology due to its power transfer efficiency, compactness and electromagnetic immunity. A novel wireless UTET scheme is proposed based on phased array technology to improve the transferring efficiency. A finite element method (COMSOL Multiphysics) is applied to investigate the properties of the phased array UTET for optimized...
Electromagnetic characteristics are critical for performance evaluation of switched reluctance machine (SRM), but it's very difficult to get them due to strong nonlinearity and coupling. In this paper, the detailed magnetization and torque characteristics of SRM are obtained by finite element method (FEM) firstly, and then an analytic method (AM) is presented to calculate the characteristics. The...
Nowadays, the light emitting diode (LED) is one of the most valuable light resources. However, it is well known that the optical output power is degraded with the heat integration. Hence, thermal management and evaluation system is required. Thermal conductivity is regarded as one of the most important properties that directly influence the thermal performance for thermal interface materials (TIMs)...
An efficient reliability analysis mode, reliability analysis mode based on truncated normal distribution, is proposed for calculating the reliability of mechanical structures. The calculation starts from a dynamic load history, the distribution of loads is determined. In the paper, the stress distribution is supposed as truncated normal distribution and its parameters are determined by finite element(FE)...
This paper presents a simpler approach for the analysis of the excitation and the mode coupling effects of surface plasmons in a D-shaped fiber. It is proposed the resonant transfer of energy in the fiber can be predicted by considering the coincident propagation constant for two distinct waveguides, namely a circular step-index fiber; and a multilayered step-index planar waveguide having refractive...
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