Decomposition kinetics of mullite and corundum in coal fly ash with highly alkaline solution was studied.The effects of the reaction temperature and reaction time on decomposition rates of mullite and corundum and alu...Decomposition kinetics of mullite and corundum in coal fly ash with highly alkaline solution was studied.The effects of the reaction temperature and reaction time on decomposition rates of mullite and corundum and alumina extraction efficiency were investigated.The results show that increasing reaction temperature and reaction time increases the decomposition rates of mullite and corundum and alumina extraction efficiency,with the decomposition temperature of mullite lower than that of corundum.After 90 min reaction at 220℃,more than 100 g alumina was extracted when recycling 1 L of alkaline solution.The decomposition processes of mullite and corundum corresponded with the shrinking unreacted core model,and the reaction rate was under chemical reaction control,with the activation energies of mullite and corundum being 67.46 and 161.82 kJ/mol,respectively.展开更多
Clinical Practice Guideline on Acupuncture and Moxibustion:Migraine(WFAS 007.9-2023)is a clinical practice guideline officially released by the World Federation of Acupuncture-Moxibustion Societies(WFAS)on October 9,2...Clinical Practice Guideline on Acupuncture and Moxibustion:Migraine(WFAS 007.9-2023)is a clinical practice guideline officially released by the World Federation of Acupuncture-Moxibustion Societies(WFAS)on October 9,2023,and is the first international guideline on the treatment of migraine with acupuncture.This international standard was developed under the guidance of rigorous evidence-based methodology,and it contains guideline purpose,scope,applicable population,applicable settings,overview of acupuncture for migraine,guideline development process and recommendations.For promoting the understanding and application of this guideline,this article summarizes a total of 18 recommendations in order to assist clinical decisions for migraine with acupuncture.展开更多
A kind of octanol-modifded silica nanoparticle was fabricated and employed as a framework to form‘‘soggy sand’’electrolyte along with 1-butyl-3-methylimidazolium tetrafluoroborate.‘‘Soggy sand’’and poly（vinyl...A kind of octanol-modifded silica nanoparticle was fabricated and employed as a framework to form‘‘soggy sand’’electrolyte along with 1-butyl-3-methylimidazolium tetrafluoroborate.‘‘Soggy sand’’and poly（vinylidene fluoride-hexafluoropropylene）composite electrolyte membranes were electrospun for the frst time.The properties of this membrane electrolyte have been evaluated by the mechanical test and electrochemical test.The Young’s modulus increased by 275%from 6.8 MPa to 25.5 MPa and the electrical conductivity increased to 7.6 10à5S/cm at 290.15 K when compared to pristine P（VdF-HFP）membrane electrolyte.The conductivity is 3.1 10à4S/cm at 323.15 K.展开更多
基金Project(2013CB632601)supported by the National Basic Research Program of China
文摘Decomposition kinetics of mullite and corundum in coal fly ash with highly alkaline solution was studied.The effects of the reaction temperature and reaction time on decomposition rates of mullite and corundum and alumina extraction efficiency were investigated.The results show that increasing reaction temperature and reaction time increases the decomposition rates of mullite and corundum and alumina extraction efficiency,with the decomposition temperature of mullite lower than that of corundum.After 90 min reaction at 220℃,more than 100 g alumina was extracted when recycling 1 L of alkaline solution.The decomposition processes of mullite and corundum corresponded with the shrinking unreacted core model,and the reaction rate was under chemical reaction control,with the activation energies of mullite and corundum being 67.46 and 161.82 kJ/mol,respectively.
基金Supported by National Key Research and Development Program of China:2019YFC1712200,2019YFC1712203Independent Project of the Institute of Acupuncture and moxibustion,China Academy of Chinese Medical Sciences:ZZ202219004Science and technology innovation project of China Academy of Chinese Medical Sciences:CI2020A03510。
文摘Clinical Practice Guideline on Acupuncture and Moxibustion:Migraine(WFAS 007.9-2023)is a clinical practice guideline officially released by the World Federation of Acupuncture-Moxibustion Societies(WFAS)on October 9,2023,and is the first international guideline on the treatment of migraine with acupuncture.This international standard was developed under the guidance of rigorous evidence-based methodology,and it contains guideline purpose,scope,applicable population,applicable settings,overview of acupuncture for migraine,guideline development process and recommendations.For promoting the understanding and application of this guideline,this article summarizes a total of 18 recommendations in order to assist clinical decisions for migraine with acupuncture.
基金supported by National Key Basic Research Program of China, 973 Program (Nos. 2012CB932800 and 2011CB93570)
文摘A kind of octanol-modifded silica nanoparticle was fabricated and employed as a framework to form‘‘soggy sand’’electrolyte along with 1-butyl-3-methylimidazolium tetrafluoroborate.‘‘Soggy sand’’and poly（vinylidene fluoride-hexafluoropropylene）composite electrolyte membranes were electrospun for the frst time.The properties of this membrane electrolyte have been evaluated by the mechanical test and electrochemical test.The Young’s modulus increased by 275%from 6.8 MPa to 25.5 MPa and the electrical conductivity increased to 7.6 10à5S/cm at 290.15 K when compared to pristine P（VdF-HFP）membrane electrolyte.The conductivity is 3.1 10à4S/cm at 323.15 K.
