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In order to explain the geological structure accurately and quickly, we analyze the gas mixture gathered from the well by Infrared Spectroscopy Fourier Transform Spectrometer instead of gas chromatograph. In the process of the spectrum analysis, the reduction of the spectrum data dimention is very neccessary to perform. In this paper, we propose a feature extraction method is based on waveband selections...
Facing the challenge of characteristics improvement, like power output, fuel economy and emissions reduction, the high level of dependability of the valve train is required in order to strengthen the capability of the overall engine system. Furthermore, in response to the existing defects derived from original design of valve train, some major components, especially the cam and valve spring need to...
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