Fusain from Tongting (Huaibei, Anhui Province) bituminous (FTTB) coal was fractionally extracted using Soxhlet extractor with CS2. Then the extracts were analyzed with GC/MS. Comparison of experimental data between FT...Fusain from Tongting (Huaibei, Anhui Province) bituminous (FTTB) coal was fractionally extracted using Soxhlet extractor with CS2. Then the extracts were analyzed with GC/MS. Comparison of experimental data between FTTB coal and clarain from Tongting bituminous (CTTB) coal was carried out. The results show that the kinds of small molecule components detected by GC/MS of FTTB are less than those of CTTB. Long-chain alkanes exist mostly in the extracts of fusain. Macromolecular networks are predominant in the FTTB coal mainly composed of inertinite in the coal petrography. The size of micropores in the FTTB coal is relatively small, and the development of micropores is relatively low. Thus the content of aromatic compounds with affinity for micropores is relative low in FTTB, while the content of long-chain alkanes with affinity for macromolecule networks is relatively high. Sub-components in exinite determine the distribution of long-chain alkanes extracted in the last stage. Odd-numbered carbon distribution appears when resin is most in exinite, while high carbon alkane distribution appears when exinite is dominant in cutinite. Small aromatic molecules are firstly packed in micropores, and exist in a free state after micropores are saturated.展开更多
FTTR(Fiber to The Room)光纤部署到房间的设计方案是一种在FTTB(光纤到楼)和FTTH(光纤到户)的基础上,使每个房间都可以达到千兆以上的网速,实现全屋有线和Wi-Fi双千兆全覆盖的解决方案。全光组网部署和应用体验也是打造"双5G"...FTTR(Fiber to The Room)光纤部署到房间的设计方案是一种在FTTB(光纤到楼)和FTTH(光纤到户)的基础上,使每个房间都可以达到千兆以上的网速,实现全屋有线和Wi-Fi双千兆全覆盖的解决方案。全光组网部署和应用体验也是打造"双5G"(5G和F5G)未来社区过程中的一项重要实践。2019年浙江省政府工作报告首次提出"未来社区"这一概念,目的在于解决社区治理的痛点,通过"双5G"大数据智能技术打造"1+3+9"智慧社区服务系统。展开更多
基金Project 50474066 supported by National Natural Science Foundation of China Project B200405 supported by China University of Mining & Technology
文摘Fusain from Tongting (Huaibei, Anhui Province) bituminous (FTTB) coal was fractionally extracted using Soxhlet extractor with CS2. Then the extracts were analyzed with GC/MS. Comparison of experimental data between FTTB coal and clarain from Tongting bituminous (CTTB) coal was carried out. The results show that the kinds of small molecule components detected by GC/MS of FTTB are less than those of CTTB. Long-chain alkanes exist mostly in the extracts of fusain. Macromolecular networks are predominant in the FTTB coal mainly composed of inertinite in the coal petrography. The size of micropores in the FTTB coal is relatively small, and the development of micropores is relatively low. Thus the content of aromatic compounds with affinity for micropores is relative low in FTTB, while the content of long-chain alkanes with affinity for macromolecule networks is relatively high. Sub-components in exinite determine the distribution of long-chain alkanes extracted in the last stage. Odd-numbered carbon distribution appears when resin is most in exinite, while high carbon alkane distribution appears when exinite is dominant in cutinite. Small aromatic molecules are firstly packed in micropores, and exist in a free state after micropores are saturated.
文摘FTTR(Fiber to The Room)光纤部署到房间的设计方案是一种在FTTB(光纤到楼)和FTTH(光纤到户)的基础上,使每个房间都可以达到千兆以上的网速,实现全屋有线和Wi-Fi双千兆全覆盖的解决方案。全光组网部署和应用体验也是打造"双5G"(5G和F5G)未来社区过程中的一项重要实践。2019年浙江省政府工作报告首次提出"未来社区"这一概念,目的在于解决社区治理的痛点,通过"双5G"大数据智能技术打造"1+3+9"智慧社区服务系统。
