Measurement of respiratory acoustic impedance in children by a modified forced oscillation method

An introduction to a modified forced oscillation method, square-wave excitation technique, including fundamentals and methods, as used in respiratory function examination. On the basis of experimental results and theoretical predictions, we suggest that Respiratory Acoustic Impedance (RAI) measurement by spectral analysis can significantly improve estimation of contribution to RAI from different part of respiratory tract. The outcome is of considerable interest in the study of lung disease, such as COPD and asthma in young children.

An 8.1 Ma calcite record of Asian summer monsoon evolution on the Chinese central Loess Plateau

IEECAS SKLLQG

Helium isotope investigation on magnetic reversal boundaries of loess-paleosol sequence at Luochuan；central Chinese Loess Plateau

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A 10,000 year record of dune activity；dust storms；and severe drought in the central Great Plains

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Late cenozoic chemical weathering and environmental changes recorded in the Co Ngoin sediments, central Qinghai-Tibet Plateau

IEECAS SKLLQG