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Xylan-based hemicellulose sample is tested in TG-MS under He, 7% O2, 20% O2 and 60% O2, in order to underpin the understanding of thermo-degradation mechanism of hemicellulose and biomass. The mass loss history recorded by TG can be divided into two main stages: (1) low-temperature stage with the peak located at around 265°C associated with thermal cracking of hemicellulose, and (2) high-temperature...
mechanical vibrations and motions is prove to be one of the key factors that affect dynamic image quality of TDI camera. Degradation models due to mechanical vibrations and motions were established. Based on this model, analyzing image quality acquired by TDI detectors present that mechanical vibrations may cause space-variant image distortions (severe geometric warps and blur) was studied. The results...
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