Fanjing Mountain Nature Reserve is located at the junction of Jiangkou,Yinjiang and Songtao counties in the Tongren region of Guizhou Province.Because of the topography and humid climate of the central subtropical mon...Fanjing Mountain Nature Reserve is located at the junction of Jiangkou,Yinjiang and Songtao counties in the Tongren region of Guizhou Province.Because of the topography and humid climate of the central subtropical monsoonal mountains,the plant species in this area are rich and diverse.The vascular plant resources and diversity of Fanjing Mountain Nature Reserve in Guizhou Province were studied through field survey,literature review and specimen identification.The results show that there are 284 species of vascular plants in the region,belonging to 205 genera in 93 families,mainly angiosperms.Liliaceae,Asteraceae,Polygonaceae,Leguminosae,Ranunculaceae and Polygonum have the most species,followed by Sedum,Dioscorea,Actinidia Lindl and Thalictrum.In terms of life types,perennial herbs are the most dominant,accounting for 68.47%of the total number of species,and annual(or biennial)herbs,shrubs and vine types also present.There are 222 species identified as medicinal vascular plants,accounting for 78.2%of the total number of species.The medicinal parts are primarily found in the whole herb category,followed by the root and rhizome category.展开更多
In recent years,water collecting systems,with the associated advantages of energy saving and noise reduction,have become the foundation for the development of a scheme to optimize the structure of cooling towers.To ex...In recent years,water collecting systems,with the associated advantages of energy saving and noise reduction,have become the foundation for the development of a scheme to optimize the structure of cooling towers.To explore the feasibility of this approach for mechanical draft cooling towers,a small-scale experimental device has been built to study the resistance and splash performances of three U-type water collecting devices(WCDs)for different water flow rates and wind speeds.The experimental results show that within the considered ranges of wind speed and water flow rate,the pressure drop of the different WCDs can vary significantly.The resistance and local splash performances can also be remarkably different.Some recommendations about the most suitable system are provided.Moreover,a regression analysis of the experimental data is conducted,and the resulting fitting formulas for resistance and splash performance of WCD are reported.展开更多
Sophora flavescens Alt.,a perennial herb of Sophora in Leguminosae family,was widely distributed in the north and south of China.Its root is utilized as a traditional Chinese medicine to clear heat,drain dampness,kill...Sophora flavescens Alt.,a perennial herb of Sophora in Leguminosae family,was widely distributed in the north and south of China.Its root is utilized as a traditional Chinese medicine to clear heat,drain dampness,kill insect and promote urination by virtue of bitter and cold.Its chemical components are complex and diverse,mainly including alkaloids and flavonoids.Modern pharmacological studies have found that prenylflavonoids and quinolicidine alkaloids are the characteristic chemical constituents and the main active ingredients,with anti-inflammatory,anti-tumor,anti-oxidation,and other various biological activities.This study reviewed the chemical constituents of S.flavescens and the pharmacological effects of flavonoids in it in order to provide reference for further development.展开更多
基金We would like to show our great appreciation to Shenyang Zhuoyuehefa Pharmaceutical Co.and Grand Life Science(Liaoning)Co.,LTD.for their financial support on this scientific expedition and Shenyang Pharmaceutical University for their great support and help to the 10^(th)Scientific Research Team on Chinese Medicine Resources.
文摘Fanjing Mountain Nature Reserve is located at the junction of Jiangkou,Yinjiang and Songtao counties in the Tongren region of Guizhou Province.Because of the topography and humid climate of the central subtropical monsoonal mountains,the plant species in this area are rich and diverse.The vascular plant resources and diversity of Fanjing Mountain Nature Reserve in Guizhou Province were studied through field survey,literature review and specimen identification.The results show that there are 284 species of vascular plants in the region,belonging to 205 genera in 93 families,mainly angiosperms.Liliaceae,Asteraceae,Polygonaceae,Leguminosae,Ranunculaceae and Polygonum have the most species,followed by Sedum,Dioscorea,Actinidia Lindl and Thalictrum.In terms of life types,perennial herbs are the most dominant,accounting for 68.47%of the total number of species,and annual(or biennial)herbs,shrubs and vine types also present.There are 222 species identified as medicinal vascular plants,accounting for 78.2%of the total number of species.The medicinal parts are primarily found in the whole herb category,followed by the root and rhizome category.
基金This work was supported by the Shandong Natural Science Foundation(Grant No.ZR2022ME008)the Shenzhen Science and Technology Program(KCXFZ20201221173409026)+2 种基金the Young Scholars Program of Shandong University(YSPSDU,No.2018WLJH73)the Open Project of State Key Laboratory of Clean Energy Utilization,Zhejiang University(Program No.ZJUCEU2020011)the Shandong Natural Science Foundation(Grant No.ZR2021ME118).
文摘In recent years,water collecting systems,with the associated advantages of energy saving and noise reduction,have become the foundation for the development of a scheme to optimize the structure of cooling towers.To explore the feasibility of this approach for mechanical draft cooling towers,a small-scale experimental device has been built to study the resistance and splash performances of three U-type water collecting devices(WCDs)for different water flow rates and wind speeds.The experimental results show that within the considered ranges of wind speed and water flow rate,the pressure drop of the different WCDs can vary significantly.The resistance and local splash performances can also be remarkably different.Some recommendations about the most suitable system are provided.Moreover,a regression analysis of the experimental data is conducted,and the resulting fitting formulas for resistance and splash performance of WCD are reported.
基金supported by the National Key Research and Development Program of China(2017YFC1701200)Leading talents of science and technology innovation in Liaoning Province(XLYC1902101)Liaoning Provincial Doctoral Research Start-up Fund(2019-BS-224).
文摘Sophora flavescens Alt.,a perennial herb of Sophora in Leguminosae family,was widely distributed in the north and south of China.Its root is utilized as a traditional Chinese medicine to clear heat,drain dampness,kill insect and promote urination by virtue of bitter and cold.Its chemical components are complex and diverse,mainly including alkaloids and flavonoids.Modern pharmacological studies have found that prenylflavonoids and quinolicidine alkaloids are the characteristic chemical constituents and the main active ingredients,with anti-inflammatory,anti-tumor,anti-oxidation,and other various biological activities.This study reviewed the chemical constituents of S.flavescens and the pharmacological effects of flavonoids in it in order to provide reference for further development.