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Magnetoacoustic tomography with magnetic induction(MAT-MI) is a new type technology for imaging the distribution of electrical impedance in biological tissue. It combines the electrical impedance tomography with the sonography. Organism has a complex structure, so it has important significance and practical value that the study of MAT-MI based on real model. We analyzed the principles of coupling...
Operation principle and conceptual design of a non-uniform square loop circularly polarized (CP) antenna is proposed. At first, the even-mode square loop antenna with perimeter of one wavelength is analyzed by employing a simplified equivalent sources model. The inherent circularly polarized characteristic is theoretically revealed, and then used to conceptually design a non-uniform, bi-sensing square...
Figure relation extraction is an important and hard field in information extraction. In this paper, aiming to improve the performance for relation extraction of historical figures, we propose a novel method based on bibliographic description. In the proposed method, by analyzing the species and co-occurrence relation of responsibility in a bibliographic record, we combine diverse person responsibility,...
In this paper a finite element (FE) model of dual-span rotor system with rub-impact at fixed limiter is established. The system motion characteristics in different rotating speeds and rub-impact rod stiffness are investigated numerically by using Hilbert-Huang transform, a relative novel time-frequency analysis method. The results show that the effects of variables on system motion patterns, response...
The paper presents a relative novel time-frequency analysis method which applies in the vibration Fault analysis of rotor systems through Hilbert spectral analysis (HSA), the part of the Hilbert-Huang transform. Using this method we analyze the vibration fault characteristics of the rotor system with rub-impact by compared with non-rubbing rotor system both in experiment and simulation. Firstly, a...
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