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The periodical shock oscillations phenomenon induced by transonic shock/turbulence boundary layer interaction is a major cause of transonic buffet. Detached Eddy Simulation (DES) method is applied to study the self-sustained shock oscillations phenomenon of SC (2)-0714 supercritical airfoil in this paper. The periodic shock motion on the upper surface of the airfoil is predicted with the DES method...
Emotion recognition based on physiological signals which can reflect peoplepsilas real emotion correctly is more robust and objective than any other ways, so it has a bright prospect of research and applications. This paper may firstly carry out the work of feature extraction for electrocardiogram (ECG) obtained from 391 subjects containing two emotion states (joy, sad) by the method of discrete wavelet...
This paper presents a mean frequency estimation method for narrowband lowpass signals. The fundamental idea of this method is that the single frequency approximation for a narrowband lowpass signal embedded in white noise using Pisarenko harmonic decomposition (PHD) algorithm is approximately the power-weighted mean frequency of the signal. In this method, Fourier transform as an indispensable processing...
Emotion recognition based on physiological signals has a significant future of research and applications. However, in the process of emotion recognition, it is difficult to obtain the most significant feature combinations. Dual-Structure Particle Swarm Optimization (DSPSO) is applied to select emotion features of physiological signals so as to improve the recognition rates in this paper. K-Nearest...
Benign bovine Theileria parasites known as either Theileria buffeli, Theileria orientalis or Theileria sergenti are classified on basis of their morphology, vector specificity, pathogenicity and 18S small subunit ribosomal RNA or major piroplasm protein (MPSP) sequences. Since most isolates have been characterized on only some of these criteria and the existing confusion in nomenclature, an analysis...
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