To quantitatively analyze main figure,field,agency and level of sponge city research in China,and clear research focus and hot spot in each year,by using the Full Text Database of Chinese Sci-tech Periodicals and othe...To quantitatively analyze main figure,field,agency and level of sponge city research in China,and clear research focus and hot spot in each year,by using the Full Text Database of Chinese Sci-tech Periodicals and other retrieval tools,the statistics and analysis of 3152 research literatures on sponge city published in domestic academic journals of 2004-2016 are conducted based on bibliometrics. It is found that since the concept of " sponge city" was firstly proposed in 2012,development research of sponge city involves 40 subject fields and is mainly published in 32 kinds of journals,which is dominated by natural science research( 1427 literatures). Researchers are mainly from each college and university,some design institutes and Chinese Academy of Sciences. The research could play certain guidance significance for further research and construction of ecological city construction in China.展开更多
In order to study China's bryophyte,this paper uses bibliometrics for statistical analysis of literature about China's bryophyte during 2005-2015.The results show that in terms of published article distributio...In order to study China's bryophyte,this paper uses bibliometrics for statistical analysis of literature about China's bryophyte during 2005-2015.The results show that in terms of published article distribution of different journals,there are 13 kinds of journals with more than 5 papers about bryophyte,accounting for 32.5%; in terms of the number of papers published in different years,it was smallest in 2005,only 16,while it reached the largest number of 33 in 2008; in terms of the number of papers published for different first authors,there are most authors publishing less than 9 papers,accounting for 87.5%,there is only one author publishing 9 papers,and there are 5 people publishing more than 9 papers; in terms of author unit distribution,in the 278 articles collected,there are 12 units publishing papers of less than 6,accounting for 30%,the unit publishing the most papers(36) is Guizhou Normal University,5 units publish 6 papers,accounting for 12.5%,and the units publishing papers of less than 6 account for 57.5%; in terms of literature research level,there are most papers about basic and applied basic research(natural science),accounting for 91.2%,the papers about engineering and technology(natural science) account for 5.5%,and other papers account for 3.3%.展开更多
In order to explore researches about the chromosome karyotype analysis and fluorescence in situ hybridization(FISH) technology in China,using the bibliometric method,taking " fluorescence in situ hybridization(FI...In order to explore researches about the chromosome karyotype analysis and fluorescence in situ hybridization(FISH) technology in China,using the bibliometric method,taking " fluorescence in situ hybridization(FISH) " and " chromosome" as key words,this paper made a statistical analysis on the literature published in China National Knowledge Infrastructure(CNKI) during 2002-2016.The results indicated that the number of papers published in 2002 was the smallest(37),while the number of papers published in 2012 was the largest(125).In terms of the distribution of organizations of authors,in 1201 papers,11 organizations published papers ≥15,accounting for 21.65%.In terms of distribution of papers published by different periodicals,11 periodicals published papers ≥10,accounting for 17.65%.In terms of the papers supported by foundation projects,in all papers searched,377 papers were supported by foundation projects,accounting for 31.39%.In terms of the distribution of doctoral and master's dissertations,259 papers were master's dissertations,accounting for 21.57%;92 papers were doctoral dissertations,accounting for 7.66%.展开更多
Background:In order to provide some references and direction for further research on psychological intervention for breast cancer patients,we analyzed the breast cancer patients,learned its research status,and found o...Background:In order to provide some references and direction for further research on psychological intervention for breast cancer patients,we analyzed the breast cancer patients,learned its research status,and found out the existing problems.Methods:We retrieved relevant literatures on psychological intervention for breast cancer patients from databases such as CNKI,Wanfang data,VIP and CBM.Note Express 3.2 was used for bibliometric analysis.Results:A total of 60 articles were included.We found that the research institutions were mainly hospitals.There was a lack of attention to special breast cancer patients,efficacy comparison trials of different intervention and cooperation during institutions.Research design was not rigorous enough:lack of pertinence of populations,unclear and short intervention interval,low repeatability of research trials,low transparency of intervention,and defects in intervention quality control.Conclusion:Clinical trials on psychological intervention for breast cancer patients should pay more attention to special breast cancer populations.Researchers should correctly grasp related research trends,seek cooperation opportunities with other institutions,and improve the quality of their own research and ensure the innovation and scientificity of trial design.Meanwhile,researchers can further explore the psychological intervention methods for special breast cancer populations,and conduct comparative studies on the efficacy of different intervention measures.展开更多
Aims:To analyze the research status and development trend of nursing qualitative research in China from 2013 to 2019.Method:China national knowledge infrastructure(CNKI),Wanfang Data and VIP database were researched t...Aims:To analyze the research status and development trend of nursing qualitative research in China from 2013 to 2019.Method:China national knowledge infrastructure(CNKI),Wanfang Data and VIP database were researched to include all related articles which were published from 2013 to 2019 about nursing qualitative research literature.NoteExpress literature management software and Excel were used to organize literature from annual distribution region,organization,core periodical,as well as the research object,research methods,data collection method and sampling method for metrology analysis.Results:2194 articles met the inclusion criteria,the number of articles is increasing year by year.Most of them come from Shanghai,Beijing,zhejiang and other developed areas.The top three institutions were the Huazhong University of Science and Technology,Tongji Medical College,Affiliated Union Hospital,Fudan university and Shanghai jiao tong university.And 835 of them were published in core journals.Research object are mainly divided into patient,nurses,nursing managers,etc.The included literature mainly adopts phenomenological research methods.Interview is the mainly data collection methods,and Colaizzi method is the mainly data analysis methods.Most articles use the method of purpose sampling.Conclusion:The qualitative research is becoming more and more attention by researchers in China.Qualitative research has covered clinical nursing,nursing education,nursing management,nursing psychology and other different nursing field.However,the selection of qualitative research methods,data analysis methods and related reports need to be further improved and standardized.展开更多
Squeeze casting(SC)is an advanced net manufacturing process with many advantages for which the quality and properties of the manufactured parts depend strongly on the process parameters.Unfortunately,a universal effic...Squeeze casting(SC)is an advanced net manufacturing process with many advantages for which the quality and properties of the manufactured parts depend strongly on the process parameters.Unfortunately,a universal efficient method for the determination of optimal process parameters is still unavailable.In view of the shortcomings and development needs of the current research methods for the setting of SC process parameters,by consulting and analyzing the recent research literature on SC process parameters and using the CiteSpace literature analysis software,manual reading and statistical analysis,the current state and characteristics of the research methods used for the determination of SC process parameters are summarized.The literature data show that the number of pub-lications in the literature related to the design of SC process parameters generally trends upward albeit with signifi-cant fluctuations.Analysis of the research focus shows that both“mechanical properties”and“microstructure”are the two main subjects in the studies of SC process parameters.With regard to materials,aluminum alloys have been extensively studied.Five methods have been used to obtain SC process parameters:Physical experiments,numeri-cal simulation,modeling optimization,formula calculation,and the use of empirical values.Physical experiments are the main research methods.The main methods for designing SC process parameters are divided into three categories:Fully experimental methods,optimization methods that involve modeling based on experimental data,and theoreti-cal calculation methods that involve establishing an analytical formula.The research characteristics and shortcomings of each method were analyzed.Numerical simulations and model-based optimization have become the new required methods.Considering the development needs and data-driven trends of the SC process,suggestions for the develop-ment of SC process parameter research have been proposed.展开更多
目的了解国内外干预项目的内容及成果经验,为以后在我国慢性病防控从业群体中推广循证慢性病防控提供参考。方法检索知网、万方、维普、PubMed、Web of Science和Scopus数据库中1995年1月1日—2019年11月31日发表的与慢性病防控循证能...目的了解国内外干预项目的内容及成果经验,为以后在我国慢性病防控从业群体中推广循证慢性病防控提供参考。方法检索知网、万方、维普、PubMed、Web of Science和Scopus数据库中1995年1月1日—2019年11月31日发表的与慢性病防控循证能力干预相关的文献,最终纳入45篇文献进行分析。结果国内极为缺乏针对提升公共卫生从业者慢性病防控循证能力的干预项目。发达国家较早实践提升医务人员慢性病能力的干预措施,包括各类面对面课程、研讨会、网络课程、书籍等,但干预课程设置普遍遇到的问题包括慢性病防控机构缺乏数据库权限,未对不同循证认知层次和工作环境的从业者进行有针对性的分类。结论我国应积极借鉴慢性病防控的国外经验,开发各类干预途径并加以推广和应用。展开更多
Land is the foundation for human survival and development,and all human social and economic activities are inseparable from the land as a space carrier.With the continuous development of China's social economy,Chi...Land is the foundation for human survival and development,and all human social and economic activities are inseparable from the land as a space carrier.With the continuous development of China's social economy,China is facing new social development needs such as urban-rural integration and rural revitalization.At the same time,China starts to attach great importance to ecology and has proposed the concept that lucid waters and lush mountains are invaluable assets.In this situation,the rational use of land resources,the optimization of land use structure and layout are also facing new challenges and problems,and more comprehensive consideration is required to make relevant optimization.Using the method of literature comparative analysis,from the conceptual connotation,basic theory,method model,and specific practice of land use structure and layout optimization,this paper analyzed and summarized the current research situations and problems,and finally came up with recommendations for the future research.展开更多
Long-document semantic measurement has great significance in many applications such as semantic searchs, plagiarism detection, and automatic technical surveys. However, research efforts have mainly focused on the sema...Long-document semantic measurement has great significance in many applications such as semantic searchs, plagiarism detection, and automatic technical surveys. However, research efforts have mainly focused on the semantic similarity of short texts. Document-level semantic measurement remains an open issue due to problems such as the omission of background knowledge and topic transition. In this paper, we propose a novel semantic matching method for long documents in the academic domain. To accurately represent the general meaning of an academic article, we construct a semantic profile in which key semantic elements such as the research purpose, methodology, and domain are included and enriched. As such, we can obtain the overall semantic similarity of two papers by computing the distance between their profiles. The distances between the concepts of two different semantic profiles are measured by word vectors. To improve the semantic representation quality of word vectors, we propose a joint word-embedding model for incorporating a domain-specific semantic relation constraint into the traditional context constraint. Our experimental results demonstrate that, in the measurement of document semantic similarity, our approach achieves substantial improvement over state-of-the-art methods, and our joint word-embedding model produces significantly better word representations than traditional word-embedding models.展开更多
Early, effective and continuous monitoring allows to reduce costs and to extend life of road infrastructure. For this reason, over the years, more and more efforts have been made to implement more advanced and effecti...Early, effective and continuous monitoring allows to reduce costs and to extend life of road infrastructure. For this reason, over the years, more and more efforts have been made to implement more advanced and effective monitoring systems at ever more contained costs,going from impractical manual and destructive methods through automated in vehicle equipment to the most recent wireless sensor network(WSN) embedded into the pavement. The purpose of this paper is to provide a comprehensive, up-to-date critical literature review of wireless sensor networks for pavement health monitoring, considering, also,the experience gained for wired sensor as fundamental point of reference. This work presents both the methodology used to collect and analyse the current bibliography and provides a description and comments fundamental characteristics of wireless sensor networks for pavement monitoring for damage detection purposes, among which energy supply, the detection method, the hardware and network architecture and the performance validation procedures. A brief analysis of other possible complementary applications of smart sensor networks, such as traffic and surface condition monitoring, is provided. Finally, a comment is provided on the gaps and possible directions that future research could follow to allow the extensive use of wireless sensor networks for pavement health condition monitoring.展开更多
基金Supported by Science Research Fund of Yunnan Provincial Education Department(2017ZZX090)School-level Key Project of Kunming University(XJZD1602)"Study on Key Technology of Ecological Planting Mode of Balcony Vegetables"of Provincial-level"Quality Project"of Kunming University-Innovation and Entrepreneurship Training Program for College Students
文摘To quantitatively analyze main figure,field,agency and level of sponge city research in China,and clear research focus and hot spot in each year,by using the Full Text Database of Chinese Sci-tech Periodicals and other retrieval tools,the statistics and analysis of 3152 research literatures on sponge city published in domestic academic journals of 2004-2016 are conducted based on bibliometrics. It is found that since the concept of " sponge city" was firstly proposed in 2012,development research of sponge city involves 40 subject fields and is mainly published in 32 kinds of journals,which is dominated by natural science research( 1427 literatures). Researchers are mainly from each college and university,some design institutes and Chinese Academy of Sciences. The research could play certain guidance significance for further research and construction of ecological city construction in China.
基金Supported by Emergency Management Project of National Natural Science Foundation(31640010)Tibet's Research and Development Project of Characteristic Agriculture and Animal Husbandry Resources Synergy Innovation Center-Plateau Ecology+1 种基金Natural Science Foundation of Tibet Autonomous Region(2016ZR-15-41)Postgraduate Innovation Project of Xizang Agriculture and Animal Husbandry College(YJS2017-01)
文摘In order to study China's bryophyte,this paper uses bibliometrics for statistical analysis of literature about China's bryophyte during 2005-2015.The results show that in terms of published article distribution of different journals,there are 13 kinds of journals with more than 5 papers about bryophyte,accounting for 32.5%; in terms of the number of papers published in different years,it was smallest in 2005,only 16,while it reached the largest number of 33 in 2008; in terms of the number of papers published for different first authors,there are most authors publishing less than 9 papers,accounting for 87.5%,there is only one author publishing 9 papers,and there are 5 people publishing more than 9 papers; in terms of author unit distribution,in the 278 articles collected,there are 12 units publishing papers of less than 6,accounting for 30%,the unit publishing the most papers(36) is Guizhou Normal University,5 units publish 6 papers,accounting for 12.5%,and the units publishing papers of less than 6 account for 57.5%; in terms of literature research level,there are most papers about basic and applied basic research(natural science),accounting for 91.2%,the papers about engineering and technology(natural science) account for 5.5%,and other papers account for 3.3%.
基金Supported by Project of National Natural Science Foundation(31160292)Crop Discipline Construction Project of Tibet Agricultural and Animal Husbandry College(2015ZWXKJS&2016ZWXKJS)
文摘In order to explore researches about the chromosome karyotype analysis and fluorescence in situ hybridization(FISH) technology in China,using the bibliometric method,taking " fluorescence in situ hybridization(FISH) " and " chromosome" as key words,this paper made a statistical analysis on the literature published in China National Knowledge Infrastructure(CNKI) during 2002-2016.The results indicated that the number of papers published in 2002 was the smallest(37),while the number of papers published in 2012 was the largest(125).In terms of the distribution of organizations of authors,in 1201 papers,11 organizations published papers ≥15,accounting for 21.65%.In terms of distribution of papers published by different periodicals,11 periodicals published papers ≥10,accounting for 17.65%.In terms of the papers supported by foundation projects,in all papers searched,377 papers were supported by foundation projects,accounting for 31.39%.In terms of the distribution of doctoral and master's dissertations,259 papers were master's dissertations,accounting for 21.57%;92 papers were doctoral dissertations,accounting for 7.66%.
文摘Background:In order to provide some references and direction for further research on psychological intervention for breast cancer patients,we analyzed the breast cancer patients,learned its research status,and found out the existing problems.Methods:We retrieved relevant literatures on psychological intervention for breast cancer patients from databases such as CNKI,Wanfang data,VIP and CBM.Note Express 3.2 was used for bibliometric analysis.Results:A total of 60 articles were included.We found that the research institutions were mainly hospitals.There was a lack of attention to special breast cancer patients,efficacy comparison trials of different intervention and cooperation during institutions.Research design was not rigorous enough:lack of pertinence of populations,unclear and short intervention interval,low repeatability of research trials,low transparency of intervention,and defects in intervention quality control.Conclusion:Clinical trials on psychological intervention for breast cancer patients should pay more attention to special breast cancer populations.Researchers should correctly grasp related research trends,seek cooperation opportunities with other institutions,and improve the quality of their own research and ensure the innovation and scientificity of trial design.Meanwhile,researchers can further explore the psychological intervention methods for special breast cancer populations,and conduct comparative studies on the efficacy of different intervention measures.
文摘Aims:To analyze the research status and development trend of nursing qualitative research in China from 2013 to 2019.Method:China national knowledge infrastructure(CNKI),Wanfang Data and VIP database were researched to include all related articles which were published from 2013 to 2019 about nursing qualitative research literature.NoteExpress literature management software and Excel were used to organize literature from annual distribution region,organization,core periodical,as well as the research object,research methods,data collection method and sampling method for metrology analysis.Results:2194 articles met the inclusion criteria,the number of articles is increasing year by year.Most of them come from Shanghai,Beijing,zhejiang and other developed areas.The top three institutions were the Huazhong University of Science and Technology,Tongji Medical College,Affiliated Union Hospital,Fudan university and Shanghai jiao tong university.And 835 of them were published in core journals.Research object are mainly divided into patient,nurses,nursing managers,etc.The included literature mainly adopts phenomenological research methods.Interview is the mainly data collection methods,and Colaizzi method is the mainly data analysis methods.Most articles use the method of purpose sampling.Conclusion:The qualitative research is becoming more and more attention by researchers in China.Qualitative research has covered clinical nursing,nursing education,nursing management,nursing psychology and other different nursing field.However,the selection of qualitative research methods,data analysis methods and related reports need to be further improved and standardized.
基金Supported by National Natural Science Foundation of China(Grant Nos.51965006 and 51875209)Guangxi Natural Science Foundation of China(Grant No.2018GXNSFAA050111)+1 种基金Innovation Project of Guangxi Graduate Education of China(Grant No.YCSW2019035)Open Fund of National Engineering Research Center of Near-Shape Forming for Metallic Materials of China(Grant No.2019001).
文摘Squeeze casting(SC)is an advanced net manufacturing process with many advantages for which the quality and properties of the manufactured parts depend strongly on the process parameters.Unfortunately,a universal efficient method for the determination of optimal process parameters is still unavailable.In view of the shortcomings and development needs of the current research methods for the setting of SC process parameters,by consulting and analyzing the recent research literature on SC process parameters and using the CiteSpace literature analysis software,manual reading and statistical analysis,the current state and characteristics of the research methods used for the determination of SC process parameters are summarized.The literature data show that the number of pub-lications in the literature related to the design of SC process parameters generally trends upward albeit with signifi-cant fluctuations.Analysis of the research focus shows that both“mechanical properties”and“microstructure”are the two main subjects in the studies of SC process parameters.With regard to materials,aluminum alloys have been extensively studied.Five methods have been used to obtain SC process parameters:Physical experiments,numeri-cal simulation,modeling optimization,formula calculation,and the use of empirical values.Physical experiments are the main research methods.The main methods for designing SC process parameters are divided into three categories:Fully experimental methods,optimization methods that involve modeling based on experimental data,and theoreti-cal calculation methods that involve establishing an analytical formula.The research characteristics and shortcomings of each method were analyzed.Numerical simulations and model-based optimization have become the new required methods.Considering the development needs and data-driven trends of the SC process,suggestions for the develop-ment of SC process parameter research have been proposed.
文摘目的了解国内外干预项目的内容及成果经验,为以后在我国慢性病防控从业群体中推广循证慢性病防控提供参考。方法检索知网、万方、维普、PubMed、Web of Science和Scopus数据库中1995年1月1日—2019年11月31日发表的与慢性病防控循证能力干预相关的文献,最终纳入45篇文献进行分析。结果国内极为缺乏针对提升公共卫生从业者慢性病防控循证能力的干预项目。发达国家较早实践提升医务人员慢性病能力的干预措施,包括各类面对面课程、研讨会、网络课程、书籍等,但干预课程设置普遍遇到的问题包括慢性病防控机构缺乏数据库权限,未对不同循证认知层次和工作环境的从业者进行有针对性的分类。结论我国应积极借鉴慢性病防控的国外经验,开发各类干预途径并加以推广和应用。
文摘Land is the foundation for human survival and development,and all human social and economic activities are inseparable from the land as a space carrier.With the continuous development of China's social economy,China is facing new social development needs such as urban-rural integration and rural revitalization.At the same time,China starts to attach great importance to ecology and has proposed the concept that lucid waters and lush mountains are invaluable assets.In this situation,the rational use of land resources,the optimization of land use structure and layout are also facing new challenges and problems,and more comprehensive consideration is required to make relevant optimization.Using the method of literature comparative analysis,from the conceptual connotation,basic theory,method model,and specific practice of land use structure and layout optimization,this paper analyzed and summarized the current research situations and problems,and finally came up with recommendations for the future research.
基金supported by the Foundation of the State Key Laboratory of Software Development Environment(No.SKLSDE-2015ZX-04)
文摘Long-document semantic measurement has great significance in many applications such as semantic searchs, plagiarism detection, and automatic technical surveys. However, research efforts have mainly focused on the semantic similarity of short texts. Document-level semantic measurement remains an open issue due to problems such as the omission of background knowledge and topic transition. In this paper, we propose a novel semantic matching method for long documents in the academic domain. To accurately represent the general meaning of an academic article, we construct a semantic profile in which key semantic elements such as the research purpose, methodology, and domain are included and enriched. As such, we can obtain the overall semantic similarity of two papers by computing the distance between their profiles. The distances between the concepts of two different semantic profiles are measured by word vectors. To improve the semantic representation quality of word vectors, we propose a joint word-embedding model for incorporating a domain-specific semantic relation constraint into the traditional context constraint. Our experimental results demonstrate that, in the measurement of document semantic similarity, our approach achieves substantial improvement over state-of-the-art methods, and our joint word-embedding model produces significantly better word representations than traditional word-embedding models.
基金partially financed by the University of Catania within the project TIMUC and by the PRIN within the project USR342。
文摘Early, effective and continuous monitoring allows to reduce costs and to extend life of road infrastructure. For this reason, over the years, more and more efforts have been made to implement more advanced and effective monitoring systems at ever more contained costs,going from impractical manual and destructive methods through automated in vehicle equipment to the most recent wireless sensor network(WSN) embedded into the pavement. The purpose of this paper is to provide a comprehensive, up-to-date critical literature review of wireless sensor networks for pavement health monitoring, considering, also,the experience gained for wired sensor as fundamental point of reference. This work presents both the methodology used to collect and analyse the current bibliography and provides a description and comments fundamental characteristics of wireless sensor networks for pavement monitoring for damage detection purposes, among which energy supply, the detection method, the hardware and network architecture and the performance validation procedures. A brief analysis of other possible complementary applications of smart sensor networks, such as traffic and surface condition monitoring, is provided. Finally, a comment is provided on the gaps and possible directions that future research could follow to allow the extensive use of wireless sensor networks for pavement health condition monitoring.
