Chao-feng Hua

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We have used the He i discontinuities at 3421 Å to determine the electron temperatures, designated Te(He i), for a sample of five Galactic planetary nebulae (PNe). We compared Te(He i) with the electron temperatures derived from the hydrogen Balmer jump at 3646 Å, designated Te(H i), and found that Te(He i) are generally lower than Te(H i). There are two(More)
Using the high-order Love rod theory and Timoshenko beam theory to model the axial and bending waves in structural members, this paper extends the method of reverberation-ray matrix (MRRM) for the analysis of high-frequency power flow in planar framed structures. The analytical formulation without involving exponentially growing functions is derived, from(More)
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