[Objective]In order to reflect the relationship between literatures quickly and efficiently and reveal the evolutionary path and hotspot,and predict the future trend of Lycoris researches.[Methods]In 19902019,CiteSpac...[Objective]In order to reflect the relationship between literatures quickly and efficiently and reveal the evolutionary path and hotspot,and predict the future trend of Lycoris researches.[Methods]In 19902019,CiteSpace software was used for visual graphic analysis authors,institutes and key words related to Lycoris research based on data sources of WOS and CNKI.[Results](1)Domestic researchers have formed a core group of authors in East China,but the cooperation between the different teams is relatively dispersed.(2)From the perspective of international cooperation level,the cocontribution in China is the largest.Among them,the Chinese Academy of Sciences published has the largest number of papers,and higher research level.(3)The research on Lycoris has experienced three stages:slow accumulation period,rapid growth period and stable growth period.And its research direction develops along the route of“interspecific relationship within genuspropagation and cultivationpharmacology and pharmacodynamicscytology and molecular biologycross breeding”.[Conclusion]The research of Lycoris mainly distributed in Asian countries such as China and Japan.On the whole,its research direction is developing from macro to micro.展开更多
Exosomes are membrane vesicles that exist in pathological or normal cells and are considered to be specifically secreted,contain complex RNAs and proteins,participate in intercellular communication functions,and have ...Exosomes are membrane vesicles that exist in pathological or normal cells and are considered to be specifically secreted,contain complex RNAs and proteins,participate in intercellular communication functions,and have functions in organismal immune response,antigen presentation,cell migration,cell differentiation,and tumor invasion.In recent years,with the explosion of the development of minimally invasive diagnostics,the research of exosomes has been rapidly developed,and the number of articles published in this field has increased dramatically,and many articles summarize the published papers in a review-type analysis.In this paper,we use bibliometric analysis combined with theoretical analysis and pathfinding network scaling to visualize data and objectively count the development process,current research,and development trend of the corresponding field by analyzing the literature of the specified field.This paper presents the data visualization by analyzing the literature of the specified field to objectively count the development process,current research and development trend of the corresponding field.This paper presents a retrospective analysis and review of the articles on exosomes in the last 20 years(2001–2021)based on the bibliometric analysis method of CiteSpace software,while presenting the problems of current research and discussing the challenges encountered in the future,hoping to provide new ideas for the development of research in this field.展开更多
Biochar is the carbon-rich product obtained from the thermochemical conversion of biomass under oxygen-limited condi-tions.Preparation methods contribute to biochar properties,which are widely concerned in the agronom...Biochar is the carbon-rich product obtained from the thermochemical conversion of biomass under oxygen-limited condi-tions.Preparation methods contribute to biochar properties,which are widely concerned in the agronomic and environmental benefits of agro-ecosystems.This research aims to use bibliometrics methods to comprehensively and objectively analyze the research trends in the global biochar production field from 2006 to 2019 based on the Web of Science Core Collection database.The results showed that 1434 papers related to biochar preparation were published,which gradually increased each year.The research topics were diversified,which were mainly divided into“Environmental Sciences and Ecology,”“Engineering”and“Agriculture”.Moreover,Bioresource Technology was the most published journal contained biochar preparation.Authors from China had the most publications,followed by the US,Australia and the UK.Meanwhile,Yong Sik Ok from Korea University contributed most of the publications and had the highest H-index.Keywords analysis indicated that biochar preparation by pyrolysis was a current hotspot,of which microwave and hydrothermal were a future research trend.Besides,gasification would be used to develop new biomass energy.Biochar has the characteristics of high pH,high specific surface area,high carbon content,and rich functional groups.It is mainly used in soil improvement,water pollutant adsorption,carbon sequestration and emission reduction,and energy storage materials,etc.Furthermore,raw materials,pyrolysis temperature and pyrolysis time will also affect its characteristics and applications.It is expected that this study may provide insight into the future research interests regarding biochar preparation.展开更多
基金Project supported by the National Natural Science Foundation of China(31960327,31560226)Natural Science Foundation of Jiangxi Province(20202BABL205004)。
文摘[Objective]In order to reflect the relationship between literatures quickly and efficiently and reveal the evolutionary path and hotspot,and predict the future trend of Lycoris researches.[Methods]In 19902019,CiteSpace software was used for visual graphic analysis authors,institutes and key words related to Lycoris research based on data sources of WOS and CNKI.[Results](1)Domestic researchers have formed a core group of authors in East China,but the cooperation between the different teams is relatively dispersed.(2)From the perspective of international cooperation level,the cocontribution in China is the largest.Among them,the Chinese Academy of Sciences published has the largest number of papers,and higher research level.(3)The research on Lycoris has experienced three stages:slow accumulation period,rapid growth period and stable growth period.And its research direction develops along the route of“interspecific relationship within genuspropagation and cultivationpharmacology and pharmacodynamicscytology and molecular biologycross breeding”.[Conclusion]The research of Lycoris mainly distributed in Asian countries such as China and Japan.On the whole,its research direction is developing from macro to micro.
基金the National Natural Science Foundation of China(12032007,31971242)Chongqing Research Program of Basic research and Frontier Technology(cstc2019jcyjzdxmX0028,cstc2020jscx-msxmX0132)。
文摘Exosomes are membrane vesicles that exist in pathological or normal cells and are considered to be specifically secreted,contain complex RNAs and proteins,participate in intercellular communication functions,and have functions in organismal immune response,antigen presentation,cell migration,cell differentiation,and tumor invasion.In recent years,with the explosion of the development of minimally invasive diagnostics,the research of exosomes has been rapidly developed,and the number of articles published in this field has increased dramatically,and many articles summarize the published papers in a review-type analysis.In this paper,we use bibliometric analysis combined with theoretical analysis and pathfinding network scaling to visualize data and objectively count the development process,current research,and development trend of the corresponding field by analyzing the literature of the specified field.This paper presents the data visualization by analyzing the literature of the specified field to objectively count the development process,current research and development trend of the corresponding field.This paper presents a retrospective analysis and review of the articles on exosomes in the last 20 years(2001–2021)based on the bibliometric analysis method of CiteSpace software,while presenting the problems of current research and discussing the challenges encountered in the future,hoping to provide new ideas for the development of research in this field.
基金This paper is funded by National Key Research and Development Program of China(No.2018YFC1900904)Postgraduate Research Fund of Guizhou Province(No.YJSCXJH(2019)055).
文摘Biochar is the carbon-rich product obtained from the thermochemical conversion of biomass under oxygen-limited condi-tions.Preparation methods contribute to biochar properties,which are widely concerned in the agronomic and environmental benefits of agro-ecosystems.This research aims to use bibliometrics methods to comprehensively and objectively analyze the research trends in the global biochar production field from 2006 to 2019 based on the Web of Science Core Collection database.The results showed that 1434 papers related to biochar preparation were published,which gradually increased each year.The research topics were diversified,which were mainly divided into“Environmental Sciences and Ecology,”“Engineering”and“Agriculture”.Moreover,Bioresource Technology was the most published journal contained biochar preparation.Authors from China had the most publications,followed by the US,Australia and the UK.Meanwhile,Yong Sik Ok from Korea University contributed most of the publications and had the highest H-index.Keywords analysis indicated that biochar preparation by pyrolysis was a current hotspot,of which microwave and hydrothermal were a future research trend.Besides,gasification would be used to develop new biomass energy.Biochar has the characteristics of high pH,high specific surface area,high carbon content,and rich functional groups.It is mainly used in soil improvement,water pollutant adsorption,carbon sequestration and emission reduction,and energy storage materials,etc.Furthermore,raw materials,pyrolysis temperature and pyrolysis time will also affect its characteristics and applications.It is expected that this study may provide insight into the future research interests regarding biochar preparation.
