As rapid development of economy and acceleration of urbanization process, air pollution problem in Chongqing was more and more prominent. By referring to statistical yearbook and investigating energy usage and economy...As rapid development of economy and acceleration of urbanization process, air pollution problem in Chongqing was more and more prominent. By referring to statistical yearbook and investigating energy usage and economy activity levels of various industrial sectors of Chongqing, basic data （activity level, energy production and consumption situation） of various economic sectors of Chongqing during 2007 -2012 were ob- tained. Using emission coefficient method, soot emission inventory in Chongqing during 2007 -2012 was established. Meanwhile, input-output model containing environmental factor was established to study relationship between economy development and environmental protection and number relationship between economy development and pollutant emission. According to the results, countermeasures of emission reduction in Chongqing were put forward.展开更多
Nine prenylated and geranylated xanthones were synthesized in two steps with total yields ranging from 11%to 36%.All of the compounds were first reported.Then,the antitumor,anti-tyrosinase,anti-pancreatic lipase,antif...Nine prenylated and geranylated xanthones were synthesized in two steps with total yields ranging from 11%to 36%.All of the compounds were first reported.Then,the antitumor,anti-tyrosinase,anti-pancreatic lipase,antifungal and antibacterial activities of all or part of compounds 1–9 were evaluated.Compound 9 exhibited clear antitumor activity,and its cytotoxicity against MCF-7 and MDA-MB-231 cells was stronger compared with cisplatin.Compounds 1–4 and 6–7 also exhibited certain activity other than the antitumor activity described above.These results demonstrated that compounds 1–4,6–7 and 9 were very promising leads for further structural modification.展开更多
基金Supported by Municipal Key Laboratory Project of Chongqing HigherSchool,China(WEPKL2013MS-10)National Innovation and Entre-preneurship Training Program of University Student in 2013,China(201310643003)
文摘As rapid development of economy and acceleration of urbanization process, air pollution problem in Chongqing was more and more prominent. By referring to statistical yearbook and investigating energy usage and economy activity levels of various industrial sectors of Chongqing, basic data （activity level, energy production and consumption situation） of various economic sectors of Chongqing during 2007 -2012 were ob- tained. Using emission coefficient method, soot emission inventory in Chongqing during 2007 -2012 was established. Meanwhile, input-output model containing environmental factor was established to study relationship between economy development and environmental protection and number relationship between economy development and pollutant emission. According to the results, countermeasures of emission reduction in Chongqing were put forward.
基金Leading Project of Fujian Provincial Department of Science and Technology(Grant No.2018Y0072)。
文摘Nine prenylated and geranylated xanthones were synthesized in two steps with total yields ranging from 11%to 36%.All of the compounds were first reported.Then,the antitumor,anti-tyrosinase,anti-pancreatic lipase,antifungal and antibacterial activities of all or part of compounds 1–9 were evaluated.Compound 9 exhibited clear antitumor activity,and its cytotoxicity against MCF-7 and MDA-MB-231 cells was stronger compared with cisplatin.Compounds 1–4 and 6–7 also exhibited certain activity other than the antitumor activity described above.These results demonstrated that compounds 1–4,6–7 and 9 were very promising leads for further structural modification.
