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PEF failed to consistently reflect FEV1 improvements after bronchodilation, indicating that handheld spirometry may better ...
We propose a simple method for the determination of the mass absorption coefficient (MAC) of light-absorbing impurities in snow. It is based on the spectral albedo/reflectance measurements in ...
Sliding mode control is widely used to enhance the speed control performance of permanent magnet synchronous motors (PMSM). However, the slow reaching onto the sliding surface and chatting phenomena ...
Hang Seng Index | historical charts for HSI to see performance over time with comparisons to other stock exchanges.
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