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Zhang Wen Liu Yang Song Dengpeng Guo Heng Hu Jinbang Wang Yunli Xu Weilin 《Cellulose (London, England)》2021,28(9):5911-5922
Cellulose - Traditional cotton fiber dyeing requires an abundance of salt, which leads to environmental pollution. Consequently, decreasing or eliminating the use of salt has become the primary... 相似文献
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Yong Chen Xiaoqian Chen Yiyong Huang Yuzhu Bai Dengpeng Hu Shaoming Fei 《Acoustical Physics》2016,62(1):27-37
Axisymmetric acoustic wave propagation in a shear pipeline flow confined by a rigid wall is studied in the two-part paper. The effects of viscous friction and thermal conduction on the acoustic wave propagating in the liquid and perfect gas are respectively analyzed under different configurations of acoustic frequency and shear flow profile. In Part 1 of this paper, mathematical models of non-isentropic and isentropic acoustic waves are formulated based on the conservation of mass, momentum and energy for both liquid and perfect gas. Meanwhile, comprehensive solutions based on the Fourier-Bessel theory are provided, which gives a general methodology of iteratively calculating features of the acoustic wave. Numerical comparisons with previous simplified models verify the validity of the proposed models and solutions. 相似文献
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Xiaoqian Chen Yong Chen Yiyong Huang Yuzhu Bai Dengpeng Hu Shaoming Fei 《Acoustical Physics》2016,62(2):143-150
Axisymmetric acoustic wave propagating in a shear pipeline flow confined by a rigid wall is studied in the two-part paper. The effects of viscous friction and thermal conduction on the acoustic wave propagating in the liquid and perfect gas are respectively analyzed under different configurations of acoustic frequency and shear mean flow. In Part 2 of this paper, comprehensive analysis of the effects of shear mean flow and acoustic frequency on the features (relative phase velocity and attenuation coefficient) of the acoustic wave are numerically addressed in cases of water and perfect gas respectively. Comparisons between the non-isentropic and isentropic models are provided in details. Meanwhile, discussions of the thermoviscous effects on the acoustic wave between water and perfect gas are given. 相似文献
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Zhuliang Zhong Gaoyuan Zhao Dengyu Xu Baobiao Dong Dengpeng Song Dr. Xingang Xie Prof. Dr. Xuegong She 《化学:亚洲杂志》2016,11(10):1542-1547
The first bioinspired total syntheses of (?) kravanhins A and C were accomplished from a labdane diterpenoid derivative. The key reactions involve a photooxidation and a one‐pot sequential aldol cyclization and lactonization, which provide a new plausible biosynthetic pathway for the kravanhins and other symbiotic members. 相似文献
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