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文献计量学与研究 何玉山教授 Prof. Yuh-Shan Ho 北京大学环境科学系 2006年08月25日 Bibliometric Pritchard, J. (1969), Statistical bibliography or bibliometrics? Journal of Documentation, 25 (4), 348-349. Fairthor, R.A. (1969), Progress in documentation - Empirical hyperbolic distributions (BradfordZipf-Mandelbrot) for bibliometric description and prediction. Journal of Documentation, 25 (4), 319-343. London, England Bibliometric 应用数学与统计方法至书或其它形式的 文字传播。是一种测量的技术。 (Pritchard, 1969) 以量化方式处理记录论述的属性及其相 关行为。(Fairthor, 1969) Bibliometric 以数量分析与统计方法对文献做分布与 特性的探讨。 Bibliometric 图书管理与信息科学 Bibliometric Laws Lotka’s Law Bradford’s Law Zipf’s Law Lotka’s Law Lotka, Alfred James (1880 - 1949), USA The number of authors making n contributions is about 1/na of those making one contribution, where a is often nearly 2. Lotka, A.J. (1926), The frequency distribution of scientific productivity. Journal of the Washington Academy of Science, 16 (12), 317-323. Bradford’s Law Samuel Clements Bradford (1878-1948) Journals in a field can be divided into three parts, each with about one-third of all articles: 1) a core of a few journals, 2) a second zone, with more journals, and 3) a third zone, with the bulk of journals. The number of journals is 1:n:n2. Bradford, S.C. (1934), Sources of information on specific subjects. British Journal of Engineering, 137 (3550), 85-86. Zipf’s Law George Kingsley Zipf (1902-1950) The probability of occurrence of words or other items starts high and tapers off. Thus, a few occur very often while many others occur rarely. Pn 1/na, where Pn is the frequency of occurrence of the nth ranked item and a is close to 1. Zipf’s Law rf = C where r is the rank of a word; f is the frequency of occurrence of the word; C is a constant that depends on the text being analyzed. Zipf’s Law Zipf, G.K. (1945), Some psychological determinants of the structure of publications. American Journal of Psychology, 58 (4), 425-442. 研究之门 开题 发表 突破 两把钥匙 建立个人研究数据库 个人研究领域文献计量分析 建立个人研究数据库(1) 建立研究基石 延申个人记忆 建构个人数据库三原则 1. 以期刊归类搜寻目录 2. 以作者归档 3. 以年份储存全文数据 文献计量分析 文章类型 语言 文章页数 成长趋势 作者分析 合作 影响因子 研究领域 作者关键词 参考文献数 文献计量模式分析 被引用率 研究与文献计量学 学术研究是传承的,做任何主题的研究都 将与其它相关研究互动。 目的 研究主题在该领域发展过程中的定位。 历史上演进的定位,与其它国家的关系。 研究领域整体发展。 目的 开题后清楚走入研究领域,找出可能的 突破点。 三种必读文献 最早的文献 影响力最大的文献 最新的创意文献 进入SCI世界 Institute for Scientific Information (ISI) Prof. Eugene Garfield Prof. Eugene Garfield President/Editor-in-Chief The Scientist Founder & Chairman Emeritus Institute for Scientific Information http://www.garfield.library.upenn.edu/ Prof. Eugene Garfield Columbia University, B.S., Chemistry, 1949 Columbia University, M.S., Library Science, 1954 University of Pennsylvania, Ph.D., Structural Linguistics, 1961 Prof. Eugene Garfield 1955 1958 the idea of an impact factor Starts Institute for Scientific Information (ISI) 1960s Created the journal impact factor with Irving H. Sher Institute for Scientific Information (ISI) Web of Science Current Contents Connect ISI Proceddings Derwent Innovations Index Dwewent Web of Namotechnology Biological Abstracts BIOSIS Previews CAB Abstracts Food Science and Technology Abstracts Inspec MEDLINE PsycINFO Zoological Record Institute for Scientific Information (ISI) Analytical Tools Journal Citation Reports Essential Science Indicators Other Resources ISI HighlyCited.com www.thomsonisi.com Web of Science (WOS) Institute for Scientific Information (ISI)于 1997年间建置之因特网版引用文献索引数 据库系统 Web of Science (WOS) Citation Databases Chemistry Databases Citation Databases Science Citation Index Expanded (SCIEXPANDED): 1900-present Subject Category: 171 Journal: 6088 Year: 2005 Citation Databases Social Sciences Citation Index (SSCI): 1956-present Subject Category: 53 Journal: 1747 Year: 2005 Citation Databases The Arts a Humanities Citation Index 1975-present 主要资料来源 1. 2. 3. 4. Institute for Scientific Information (ISI) Web of Science (WOS) Citation Databases Science Citation Index Expanded (SCIEXPANDED) JCR评估过程 ISI每年审查的期刊约有2,000种 10%到20%的期刊会被收录 已被收录的期刊也被追踪考核,以确定 其仍然维持高质量水平。 ISI评估小组具有其所负责领域的相关教 育背景,及信息科学方面的经验素养, 必要时ISI的顾问团也参与评估。 JCR评估考虑因素 期刊的基本出版标准(Basic Journal Standards) 编辑内容(Editorial Content) 国际性(Internationality) 引用文献分析(Citation Analysis) JCR-期刊评鉴工具 哪些期刊最具影响力? 哪些期刊最常被使用? 哪些期刊最热门? 哪些期刊出版量最大? 哪些期刊最常被引用? JCR-期刊评鉴工具 期刊影响系数(Impact Factor)高或低? 哪些期刊的立即引用率(Immediacy Index)最高? 期刊引用及被引用的情形? 收录期刊之详细出版讯息。 收录期刊之刊名改变情形。 Journal Citation Reports Impact factor: a ratio between citations and citable items published (Garfield, 1972) Impact Factor CA-A Cancer Journal for Clinicians Cites in 2005 to articles published in 2004 = 998 2003 = 695 2004 + 2003 = 1693 Number of articles published in 2004 = 18 2003 = 16 2004 + 2003 = 34 Cites to recent articles 1693 Impact Factor 49.794 Number of recent articles 34 Impact Factor New England Journal of Medicine Cites in 2005 to articles published in 2004 = 13683 2003 = 16336 2004 + 2003 = 30019 Number of articles published in 2004 = 316 2003 = 366 2004 + 2003 = 682 Cites to recent articles 30019 Impact Factor 44.016 Number of recent articles 682 Impact Factor Science Cites in 2005 to articles published in 2004 = 23751 2003 = 28175 2004 + 2003 = 51926 Number of articles published in 2004 = 845 2003 = 834 2004 + 2003 = 1679 Cites to recent articles 519269 Impact Factor 30.927 Number of recent articles 1679 Rank Journal Title IF II No. China 1 CA-A Cancer Journal for Clinicians 49.794 21.300 20 0 2 Annual Review of Immunology 47.400 10.828 29 0 3 New England Journal of Medicine 44.016 13.422 308 110 4 Annual Review of Biochemistry 33.456 4.857 28 0 5 Nature Reviews Cancer 31.694 3.935 77 5 6 Science 30.927 6.398 827 334 7 Nature Reviews Immunology 30.458 3.792 72 1 8 Reviews of Modern Physics 30.254 5.633 30 2 9 Nature Reviews Molecular Cell Biology 29.852 6.225 80 3 10 Cell 29.431 6.238 319 22 11 Nature 29.273 5.825 1065 285 12 Nature Medicine 28.878 6.600 155 18 13 Physiological Reviews 28.721 4.788 33 0 14 Nature Immunology 27.011 5.362 130 4 15 Nature Genetics 25.797 5.921 190 37 16 Annual Review of Neuroscience 24.184 2.263 19 1 17 Annual Review of Cell and Developmental Biology 23.690 0.857 28 0 18 Lancet 23.407 6.253 423 277 19 JAMA-Journal of the American Medical Association 23.332 5.082 380 62 20 Nature Biotechnology 22.738 5.210 124 14 IF: Impact Factor; II: Immediacy Index; No.: Last data updates 20/08/2006 Number of articles in 2005 Rank Journal Title IF II No. China 1 Environmental Health Perspectives 5.342 0.955 310 52 2 Frontiers in Ecology and the Environment 4.745 0.537 54 6 3 Conservation Biology 4.110 0.450 202 19 4 Global Change Biology 4.075 0.466 178 34 5 Environmental Science & Technology 4.054 0.541 1282 284 6 Applied Catalysis B-Environmental 3.809 0.509 226 133 7 Global Biogeochemical Cycles 3.373 0.838 117 28 8 Critical Reviews in Environmental Science and Technology 3.080 0.133 15 3 9 Water Research 3.019 0.226 532 293 10 Environment International 2.856 0.374 131 96 11 Remote Sensing of Environment 2.833 0.346 231 51 12 Applied Catalysis A-General 2.728 0.349 545 545 13 Atmospheric Environment 2.724 0.352 685 339 14 Annual Review of Environment and Resources 2.600 0.077 13 0 15 Biological Conservation 2.581 0.589 314 40 16 Climatic Change 2.479 0.610 105 42 17 Journal of Aerosol Science 2.477 0.433 90 24 18 Environmental Pollution 2.451 0.427 321 178 19 Environmental Toxicology and Chemistry 2.414 0.278 385 64 20 Reviews of Environmental Contamination and Toxicology 2.370 0.125 8 2 Last data updates 20/08/2006 Environmental Engineering; Environmental Sciences; Water Resources Year Journal title TC China 2005 Lancet 164 73407 2004 Nature 2003 New England Journal of Medicine 211 60876 861 50758 2002 Nature 2001 Nature 778 41290 5132 36497 2000 Journal of Clinical Oncology 685 31015 1999 Science 1998 New England Journal of Medicine 673 24582 830 20490 1997 Science 1996 Science 675 17165 779 15103 Last data updates 20/08/2006 Year Journal title 1995 Science Proceedings of the National Academy of Sciences of 1994 the United States of America 1993 Journal of the National Cancer Institute 1992 Journal of the Geological Society 1991 Nature 1990 Journal of the National Cancer Institute Journal of the Optical Society of America 1989 B-Optical Physics 1988 Blood 1987 Applied Physics A-Materials Science & Processing 1986 Journal of Geophysical Research-Solid Earth and Planets Last data updates 20/08/2006 TC China 615 13429 450 10415 776 9673 414 9146 1092 8176 456 7733 347 6988 1368 6547 686 5562 259 4503 Year 1985 1984 1983 1982 Journal title Physics Reports-Review Section of Physics Letters Nature Circulation Microbial Ecology 1981 Scientia Sinica 1980 Biological Trace Element Research 1979 Physical Review Letters 1978 Physical Review A 1977 Scientia Sinica Last data updates 20/08/2006 TC China 407 269 347 299 3554 3379 3149 2677 578 317 228 1724 895 460 69 22 206 119 Lander, ES et al. and International Human Genome Sequencing Consortium (2001), Initial sequencing and analysis of the human genome. Nature, 409 (6822), 860-921. Author: 243 Institute: 54 Chinese Acad Sci, Inst Genet, Ctr Human Genome, Beijing Genom Inst, Beijing, 100101 Peoples R China So China Natl Human Genome Res Ctr, Shanghai, 201203 Peoples R China No China Natl Human Genome Res Ctr, Beijing, 100176 Peoples R China Year Journal title TC Papers China 2005 Environmental Science & Technology 23 1771 73407 2004 Environmental Science & Technology 60876 2003 Applied Catalysis B-Environmental 23 1527 52 1251 2002 Remote Sensing of Environment 91 961 41290 Global Environmental Change-Human 2001 and Policy Dimensions 94 866 36497 2000 Applied Catalysis B-Environmental 1999 Climatic Change 1998 Applied Catalysis B-Environmental 1997 Applied Catalysis A-General 1996 Biogeochemistry 97 102 105 84 329 31015 24582 20490 17165 15103 Last data updates 20/08/2006 602 412 355 278 221 50758 Environmental Engineering; Environmental Sciences; Water Resources Year Journal title TC Papers China 1995 Marine Pollution Bulletin 1994 Archives of Environmental Health 1993 Atmospheric Environment Part A-General Topics 109 173 101 130 59 128 13429 10415 9673 1992 Biogeochemistry 1991 Atmospheric Environment Part A-General Topics 183 134 116 126 9146 8176 1990 Science of the Total Environment 1989 Environmental Health Perspectives 1988 Chemosphere 65 83 58 80 76 89 7733 6988 6547 1987 Water Research 1986 Radiation Protection Dosimetry 53 104 41 38 5562 4503 Last data updates 20/08/2006 Environmental Engineering; Environmental Sciences; Water Resources Year Journal title TC Papers China 1985 Water Resources Research 1984 Environmental Science & Technology 57 50 38 37 3554 3379 1983 Environmental Science & Technology 41 40 3149 1982 Marine Pollution Bulletin 1981 Atmospheric Environment 42 33 50 14 2677 1724 1980 Clays and Clay Minerals 1979 - 13 5 0 2 895 460 1978 Health Physics 1977 - 12 1 - 0 206 119 Last data updates 20/08/2006 Environmental Engineering; Environmental Sciences; Water Resources Howarth, R.W., Billen, G., Swaney, D., Townsend, A., Jaworski, N., Lajtha, K., Downing, J.A., Elmgren, R., Caraco, N., Jordan, T., Berendse, F., Freney, J., Kudeyarov, V., Murdoch, P. and Zhu, Z.L. (1996), Regional nitrogen budgets and riverine N&P fluxes for the drainages to the North Atlantic Ocean: Natural and human influences. Biogeochemistry, 35 (1), 75-139. Has been cited 134 times 30/07/06 Howarth RW (reprint author), Cornell Univ, Ithaca, NY 14853 USA Free Univ Brussels, Grp Microbiol Milieux Aquat, Brussels, B1050 Belgium US EPA, Environm Res Lab, Narragansett, RI 02882 USA Oregon State Univ, Dept Bot & Plant Pathol, Corvallis, OR 97331 USA Iowa State Univ, Ames, IA 50011 USA Univ Stockholm, Dept Syst Ecol, Stockholm, S-10691 Sweden Univ Stockholm, Ctr Marine Res, Stockholm, S-10691 Sweden Inst Ecosyst Studies, Millbrook, Ny 12545 USA Smithsonian Environm Res Ctr, Edgewater, MD 21037 USA Dlo, Cabo, Wageningen, Nl-6700 AA Netherlands Csiro, Div Plant Ind, Canberra, Act 2601 Australia Inst Soil Sci & Photosynth, Pushchino, 142292 Russia US Geol Survey, Div Water Resources, Albany, NY 12201 USA Inst Soil Sci, Lab Mat Cycling Pedosphere, Nanjing, Peoples R China Impact Factor的迷失 Environmental Science & Technology Subject Categories: Engineering, Environmental: Impact Factor 4.054, 1/37 (2005) Environmental Sciences: 5/140 (2005) Environmental Science & Technology From 1969, Vol 3 (1) to 2006, 40 (13), 18808 documents Time cited > 500 8 (0.43%) documents Time cited 100 533 (2.8%) documents Time cited = 0 5398 (29%) documents Time cited = 1 1339 (7.1%) documents Time cited = 2 857 (4.6%) documents Environmental Science & Technology 284 papers Kile, D.E., Chiou, C.T., Zhou, H.D., Li, H. and Xu, O.Y. (1995), Partition of nonpolar organic pollutants from water to soil and sediment organic matters. Environmental Science & Technology, 29 (5), 1401-1406. Has been cited 104 times 02/08/06 Environmental Science & Technology US Geol Survey, Denver Fed Ctr, Denver, CO 80225 USA Minist Water Resources, Water Qual Res Ctr, Beijing, 100044 Peoples R China Nanjing Univ, Dept Environm Sci & Engn, Nanjing, 210093 Peoples R China The most frequently cited paper Hamilton, M.A., Russo, R.C. and Thurston, R.V. (1977), Trimmed spearman-karber method for estimating median lethal concentrations in toxicity bioassays. Environmental Science & Technology, 11 (7), 714-719. Environmental Engineering: Impact Factor 4.054, 1/37 (2005) Environmental Sciences: 5/140 (2005) Montana State University Has been cited 768 times 30/07/06 The most frequently cited paper Ho, Y.S. and McKay, G. (1999), Pseudosecond order model for sorption processes. Process Biochemistry, 34 (5), 451-465. Biochemistry & Molecular Biology: Impact Factor 1.796, 174/261 (2005) Biotechnology & Applied Microbiology: 61/139 (2005) Chemical Engineering: 13/116 (2005) Has been cited 213 times 02/08/06 The most frequently cited paper Ho, Y.S. and McKay, G. (1998), Sorption of dye from aqueous solution by peat. Chemical Engineering Journal, 70 (2), 115-124. Engineering, Chemical: Impact Factor: 2.034, 11/116 (2005) Has been cited 133 times 02/08/06 The most frequently cited paper Ho, Y.S., Wase, D.A.J. and Forster, C.F. (1996), Kinetic studies of competitive heavy metal adsorption by sphagnum moss peat. Environmental Technology, 17 (1), 71-77. Environmental Sciences: Impact Factor 0.718, 109/140 (2005) Has been cited 104 times 02/08/06 The most frequently cited paper Ho, Y.S., Wase, D.A.J. and Forster, C.F. (1994), The adsorption of divalent copper ions from aqueous solution by sphagnum moss peat. Process Safety and Environmental Protection, 72 (B3), 185-194. Engineering, Environmental: Impact Factor 0.500, 29/37 (2005) Engineering, Chemical: Impact Factor 0.500, 72/116 (2005) Has been cited 45 times 02/08/06 The most frequently cited paper Ho, Y.S. and McKay, G. (1998), Kinetic models for the sorption of dye from aqueous solution by wood. Process Safety and Environmental Protection, 76 (B2), 183-191. Engineering, Environmental: Impact Factor 0.500, 29/37 (2005) Engineering, Chemical: 72/116 (2005) Has been cited 75 times 02/08/06 The most frequently cited paper Ho, Y.S. and McKay, G. (1998), A comparison of chemisorption kinetic models applied to pollutant removal on various sorbents. Process Safety and Environmental Protection, 76 (B4), 332-340. Engineering, Environmental: Impact Factor 0.500, 29/37 (2005) Engineering, Chemical: 72/116 (2005) Has been cited 83 times 02/08/06 The most frequently cited paper Ho, Y.S. and Chiang, C.C. (2001), Sorption studies of acid dye by mixed sorbents. Adsorption-Journal of the International Adsorption Society, 7 (2), 139-147. Chemistry, Physical: Impact Factor 1.323, 70/111 (2005) Engineering, Chemical: 30/116 (2005) Has been cited 72 times 02/08/06 The most frequently cited paper Ho, Y.S. and McKay, G. (1999), Comparative sorption kinetic studies of dye and aromatic compounds onto fly ash. Journal of Environmental Science and Health Part A-Toxic/Hazardous Substances & Environmental Engineering, 34 (5), 1179-1204. Engineering, Environmental: Impact Factor 0.786 21/37 (2005) Environmental Sciences: 104/140 (2005) Has been cited 48 times 02/08/06 The most frequently cited paper Ho, Y.S. and McKay, G. (2000), The kinetics of sorption of divalent metal ions onto sphagnum moss peat. Water Research, 34 (3), 735-742. Engineering, Environmental: Impact Factor 3.019, 3/37 (2005) Environmental Sciences: 8/140 (2005) Water Resources: 1/57 (2005) Has been cited 186 times 02/08/06 Rank 1st in citation from 515 papers of Water Research (2000); Rank 3rd in citation from 4,815 papers of Water Research (from year 1997, Volume 31 (1) to year 2006, Volume 40 (12)) The most frequently cited paper Lowry, O.H., Rosebrough, N.J., Farr, A.L. and Randall, R.J. (1951), Protein measurement with the folin phenol reagent. Journal of Biological Chemistry, 193 (1), 265-275. Biochemistry & Molecular Biology: Impact Factor 5.854, 38/261 (2005) Washington University Has been cited more than 100,000 times since 1988 30/07/06 Journal of Biological Chemistry Biochemistry & Molecular Biology: Impact Factor 5.854, 38/261 (2005) Publisher: Amer Soc Biochemistry Molecular Biology Inc Issues/Year: 52 Journal Country/Territory: United States Language: English Journal of Biological Chemistry Fiske, C.H. and Subbarow, Y. (1925), The colorimetric determination of phosphorus. Journal of Biological Chemistry, 66 (2), 375400. Harvard Medical School Has been cited 21,385, 30/07/06 Journal of Biological Chemistry Folch, J., Lees, M. and Stanley, G.H.S. (1957), A simple method for the isolation and purification of total lipides from animal tissues. Journal of Biological Chemistry, 226 (1), 497-509. Harvard Medical School Has been cited 35,293, 30/07/06 Journal of Biological Chemistry Omura, T. and Sato, R. (1964), Carbon monoxide-binding pigment of liver microsomes. I. evidence for its hemoprotein nature. Journal of Biological Chemistry, 239 (7), 2370-2378. Osaka University Has been cited 10,805, 30/07/06 Journal of Biological Chemistry Weber, K. and Osborn, M. (1969), Reliability of molecular weight determinations by dodecyl sulfate-polyacrylamide gel electrophoresis. Journal of Biological Chemistry, 244 (16), 4406-4412. Harvard University Has been cited 23,289, 30/07/06 Journal of Biological Chemistry O’Farrell, P.H. (1975), High-resolution 2dimensional electrophoresis of proteins. Journal of Biological Chemistry, 250 (10), 4007-4021. University of Colorado Has been cited 16,918, 30/07/06 Journal of Biological Chemistry Grynkiewicz, G., Poenie, M. and Tsien, R.Y. (1985), A new generation of Ca2+ indicators with greatly improved fluorescence properties. Journal of Biological Chemistry, 260 (6), 3440-3450. University of California Has been cited 16,249, 30/07/06 个人研究领域文献计量分析 Horizontal Gene Transfer 1991-2005 Document type 1991-2005 % 1991-2003 % TC2 CPP 79 7793 13 603 77 907 Article 17 2487 19 133 19 222 Review 1.8 115 8.2 14 1.8 21 Editorial Material 0.66 107 21 5 0.85 10 Letter 0.39 0 0 3 0.43 5 Meeting Abstract 0.13 0 0 1 0.26 3 Correction 0.13 0 0 1 0.085 1 News Item 0.13 13 13 1 0.085 1 Note 0 0 0.085 1 Bibliography 0 0 0.085 1 Software Review Cumulative number of publications 1000 900 Cumulative number of publications 1991-1994 Exponential model 1994-1999 Logarithmic model 1999-2005 Logarithmic model 800 700 600 500 400 300 200 100 0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Years since 1991 Year 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 Number of articles Citation per articles 140 25 120 20 100 80 15 60 10 40 20 5 0 0 Citation per articles 160 1993 180 1992 1991 Number of articles 200 35 30 P CPP 100 400 80 300 60 40 200 20 100 0 0 Number of authors Citation per articles 120 1 2 3 4 5 6 7 8 9 10 11 12 13 15 16 17 23 28 116 151 Number of articles 140 600 500 P CPP 60 400 50 300 40 30 200 20 100 10 0 0 Page count Citation per articles 80 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 21 22 24 25 29 30 33 34 Number of articles 90 600 500 70 P CPP 12 12 10 10 8 8 6 6 4 4 2 2 0 0 Number of references Citation per articles 14 0 2 5 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Number of articles 16 16 14 KeyWords Plus escherichia-coli horizontal gene-transfer evolution sequence DNA expression identification nucleotide-sequence bacteria cloning strains genes gene Articles 183 99 95 87 76 67 65 60 50 46 45 41 41 % 31 17 16 15 13 11 11 10 8.4 7.7 7.5 6.9 6.9 TC2 2299 1176 1176 1242 755 720 1054 704 478 380 541 684 586 CPP 13 12 12 14 10 11 16 12 10 8.3 12 17 14 Country USA Germany UK France Japan Canada Netherlands Spain Sweden Switzerland SP (%) 150 (33) 72 (16) 42 (9.2) 26 (5.7) 24 (5.2) 18 (3.9) 10 (2.2) 12 (2.6) 16 (3.5) 14 (3.1) CPP 17 9.3 8.6 17 12 7.2 7.9 7.9 10 6.9 CP (%) 74 (51) 47 (33) 41 (28) 24 (17) 9 (6.3) 12 (8.3) 18 (13) 13 (9.0) 8 (5.6) 10 (6.9) CPP 21 34 39 21 4.9 13 45 10 18 12 TP (%) 224 (37) 119 (20) 83 (14) 50 (8.3) 33 (5.5) 30 (5.0) 28 (4.6) 25 (4.1) 24 (4.0) 24 (4.0) CPP 18 19 23 19 9.8 9.6 32 9.0 13 8.9 Subject Category 1991-2003 Microbiology Biochemistry & Molecular Biology Genetics & Heredity Biotechnology & Applied Microbiology Evolutionary Biology Multidisciplinary Sciences Infectious Diseases Immunology Cell Biology Plant Sciences Article % 227 38 171 29 142 24 86 14 69 12 51 8.5 41 6.8 40 6.7 24 4.0 23 3.8 TC2 1957 1991 1673 1041 731 2371 435 335 239 177 CPP 8.6 12 12 12 11 46 11 8.4 10 7.7 Journal 1991-2003 Article % CPP Ranking of CPP IF Journal of Bacteriology 41 6.8 11 42 4.167 Proceedings of the National Academy of Sciences of the United States of America 33 5.5 32 6 10.231 Journal of Molecular Evolution Molecular Biology and Evolution 31 24 5.1 8.4 4.0 14 61 31 2.703 6.233 Applied and Environmental Microbiology Molecular Microbiology 24 21 4.0 12 3.5 14 37 27 3.818 6.203 Infection and Immunity Gene 20 18 3.3 10 3.0 8.2 46 64 3.933 2.694 FEMS Microbiology Letters 18 3.0 6.4 79 2.057 Microbiology-SGM 13 2.2 8.5 60 3.173 191 journals First Author 1991-2003 Article Johnson, JR 6 Aravind, L 5 Nielsen, KM 5 Jain, R 4 Desiere, F 4 Whatmore, AM 4 Coffey, TJ 4 Tauch, A 4 Garcia-Vallve, S 4 % 1.0 0.83 0.83 0.66 0.66 0.66 0.66 0.66 0.66 CPP 23 42 8.0 32 18 16 14 14 12 RP 1991-2003 Koonin, EV Johnson, JR Berg, OG Wackernagel, W Baumler, AJ Hacker, J Gogarten, JP Nielsen, KM Madsen, EL Article 8 6 4 4 4 4 4 4 4 % 1.5 1.2 0.77 0.77 0.77 0.77 0.77 0.77 0.77 CPP 44 23 19 15 12 11 7.5 6.8 5.8 RP2 1991-2003 Univ Wurzburg Univ Warwick Natl Lib Med NIH INRA Cornell Univ Article 10 8 7 7 7 7 % 1.9 1.5 1.3 1.3 1.3 1.3 CPP 10 7.1 60 38 26 4.3 RP3 1991-2003 USA Germany UK France Japan Sweden Canada Spain Italy Switzerland Netherlands P 159 79 47 35 28 19 16 14 13 11 10 % 31 15 9.0 6.7 5.4 3.7 3.1 2.7 2.5 2.1 1.9 CPP 18 12 9.1 31 10 10 12 11 4.8 8.5 4.7 个人研究领域文献计量分析 Water Research 1967-2005 Document Type Article Note Review Editorial Material Letter Meeting Abstract Book Review Correction Correction, Addition Discussion Abstract of Published Item Biographical-Item Item About an Individual Publications % 9524 92 343 3.3 141 1.4 134 1.3 66 0.63 66 0.63 52 0.50 27 0.26 25 0.24 16 0.15 1 0.010 1 0.010 1 0.010 Country USA UK Canada France Japan Australia Netherlands Spain Germany Italy IP 2006 791 583 456 466 286 274 266 229 200 IP (%) 25 10 7.3 5.7 5.9 3.6 3.5 3.4 2.9 2.5 CP 343 186 112 136 96 70 79 64 101 50 CP (%) 32 17 11 13 9.0 6.6 7.4 6.0 9.5 4.7 P 2349 977 695 592 562 356 353 330 330 250 P (%) 26 11 7.7 6.6 6.2 4.0 3.9 3.7 3.7 2.8 Ranking Institute 1 U.S. Environmental Protection Agency 2 University of Illinois 3 Technical University of Denmark 4 University of Arizona 5 University of Tokyo 6 University of Florida 6 University of Wisconsin Virginia Polytechnic Institute & 8 State University 9 National Taiwan University 10 University of Alberta Country USA USA Denmark USA Japan USA USA P 98 91 74 68 60 59 59 USA 58 Taiwan Canada 57 56 Ranking Author Institute Country P 1 Suidan, MT University of Cincinnati USA 38 2 Gerba, CP University of Arizona USA 37 3 Lettinga, G Wageningen Agricultural Netherlands 36 University 4 Huang, CP University of Delaware USA 34 5 Gujer, W EAWAG Switzerland 33 6 Lee, DJ National Taiwan University Taiwan 29 7 Lester, JN Imperial College London UK 27 8 Okada, M Hiroshima University Japan 25 8 Van Loosdrecht, Delft University of Technology Netherlands 25 State Ghent University Belgium MCM 8 Verstraete, W 25 3500 3072 3000 2650 No. of articles 2500 2000 1532 1500 1017 1000 754 500 301 10748 19 10 1 2 0 2 2 0 1 0 0 0 1 0 1 3 5 7 9 11 13 No. of authors 15 17 19 21 Ranking First author Institute Country P 1 Andreozzi, R University of Naples Federico II Italy 17 2 Lin, SH Taiwan 15 3 Bhargava, DS University of Roorkee India 13 3 Chu, W Hong Kong Polytechnic University Hong Kong 13 3 Chudoba, J Institute of Chemical Technology Czechoslovakia 13 3 Haas, CN Drexel University USA 13 7 Huang, CP University of Delaware USA 12 7 Toerien, DF National Institute for Water Research South Africa 12 9 Beltran, FJ University of Extremadura Spain 11 10 Ogata, M Okayama University Japan 10 Yuan Ze University Year Title Country C 1967 A simplified dosing apparatus for fish toxicology studies USA 412 1968 The calculation of the acute toxicity of mixtures of poisons to rainbow UK 151 UK 97 1970 A colorimetric method for ammonia in natural waters South Africa 126 1971 The viability and activity of activated sludge USA 120 1972 Toxic effects of zinc sulfate on gills of rainbow-trout UK 183 1973 Control of activated-sludge filamentous bulking. II. Selection of Czechoslovakia 140 trout 1969 The diuretic response by rainbow trout to sub-lethal concentrations of ammonia microorganisms by means of a selector 1974 The chemistry of cadmium in natural water. II. The adsorption of UK 141 Netherlands 221 cadmium on river muds and naturally occurring solids 1975 Filamentous organisms observed in activated-sludge Year Title Country C 1976 The role of hydroxyl radical reactions in ozonation processes in aqueous solutions Switzerland 296 1977 Trace metal species in fresh waters Australia 1978 Ammonia determination based on indophenol formation with sodium salicylate Netherlands 290 1979 Sorption of hydrophobic pollutants on natural sediments USA 1386 1980 The effect of concentration of adsorbing solids on the partition coefficient USA 240 1981 Determination of ozone in water by the indigo method Switzerland 462 1982 Adsorption of arsenite and arsenate on amorphous iron hydroxide USA 142 314 Rate constants of reactions of ozone with organic and inorganic compounds in water. Switzerland 411 1983 I. Non-dissociating organic compounds 1984 Removal of heavy-metals from waters by means of natural zeolites France Rate constants of reactions of ozone with organic and inorganic compounds in water. Switzerland 207 1985 III. Inorganic compounds and radicals Year Title Country C 1986 Photo-oxidation of organic material in aqueous suspensions of Australia 236 Denmark*, USA, 171 titanium dioxide 1987 A general model for single-sludge wastewater treatment systems Switzerland, South Africa, Japan 1988 The binding of heavy metals to algal surfaces Switzerland 170 1989 Henry’s law constant for the ozone-water system Spain 119 1990 Purification of water with near-U.V. illuminated suspensions of Australia 138 1991 A dynamic model of the clarification thickening process Canada 144 1992 Decolorizing dye wastewater with Fenton’s reagent Taiwan 209 1993 Bioflocculation in activated sludge: An analytic approach France 163 1994 Behaviour of alkylphenol polyethoxylate surfactants in the aquatic Croatia*, Switzerland 294 titanium dioxide environment. I. Occurrence and transformation in sewage treatment 1995 Concentrations of alkylphenols in rivers and estuaries in England and UK Wales 203 Year Title Country C 1996 Extraction of extracellular polymers from activated sludge using a cation Denmark 143 Taiwan 90 1998 Occurrence of drugs in German sewage treatment plants and rivers Germany 298 1999 The sorption of lead(II) ions on peat Hong Kong, 97 exchange resin 1997 Biosorption of lead, copper and cadmium by biomass of Pseudomonas aeruginosa PU21 Taiwan* 2000 The kinetics of sorption of divalent metal ions onto sphagnum moss peat Hong Kong 147 2001 Use of Fenton reagent to improve organic chemical biodegradability Spain 57 2002 Comparison of different advanced oxidation processes for phenol degradation Spain 45 2003 Removal of copper ions from aqueous solution by tree fern Taiwan 38 2004 Behavior of pharmaceuticals, cosmetics and hormones in a sewage treatment Spain*, Germany 14 USA*, UK 5 plant 2005 Electricity generation from cysteine in a microbial fuel cell Phosphorus Activated carbon Sorption Ozonation Groundwater Modeling Heavy metals Toxicity Water treatment Water quality Biofilm Wastewater treatment Nitrification Biodegradation Kinetics Wastewater Drinking water Denitrification Adsorption Activated sludge 1.71 1.75 1.77 1.77 1.77 1.80 1.96 2.06 2.08 2.28 2.45 2.47 2.80 2.85 2.93 3.31 3.45 3.45 4.66 5.49 0 2 4 Percentage (%) 6 个人研究领域文献计量分析 环境工程、环境科学、水资源领域SCI期刊 发表的与吸附相关的研究论文 国家 美国 德国 法国 英国 加拿大 日本 中国 西班牙 印度 意大利 SP 论文数 4041 575 550 487 479 515 445 408 401 335 % CP 论文数 34 819 4.8 324 4.6 314 4.1 243 4.0 240 4.3 162 3.7 216 3.4 171 3.4 75 2.8 135 % 论文总数 % 37 4860 34 15 899 6.4 14 864 6.1 11 730 5.2 11 719 5.1 7.4 677 4.8 9.8 661 4.7 7.8 579 4.1 3.4 476 3.4 6.1 470 3.3 国家 美国 德国 法国 英国 加拿大 日本 中国 西班牙 印度 意大利 SP 论文数 4041 575 550 487 479 515 445 408 401 335 % CP 论文数 34 819 4.8 324 4.6 314 4.1 243 4.0 240 4.3 162 3.7 216 3.4 171 3.4 75 2.8 135 % 论文总数 % 37 4860 34 15 899 6.4 14 864 6.1 11 730 5.2 11 719 5.1 7.4 677 4.8 9.8 661 4.7 7.8 579 4.1 3.4 476 3.4 6.1 470 3.3 180 中国 160 德国 140 法国 120 日本 100 英国 意大利 80 60 40 20 年份 2005 2003 2001 1999 1997 1995 1993 0 1991 论文数 加拿大 排名 1 2 3 4 5 6 7 8 8 10 11 12 13 13 15 研究机构 中科院(Chinese Acad Sci) 浙江大学 南京大学 清华大学 复旦大学 北京大学 南开大学 Acad Sinica 吉林大学 上海交通大学 天津大学 华南理工大学 同济大学 武汉大学 厦门大学 论文数 340 151 107 94 44 43 29 26 26 25 21 19 18 18 17 % 52 23 16 14 6.7 6.5 4.4 3.9 3.9 3.8 3.2 2.9 2.7 2.7 2.6 北京大学文献计量分析 SCI 1991-2005 Subject category P AU AU/P NR NR/P PG PG/P Chemistry, Multidisciplinary 1135 5100 4.5 23557 21 8743 7.7 Physics, Multidisciplinary 1056 25597 24 21597 20 6622 6.3 Chemistry, Physical 994 4562 4.6 23924 24 7530 7.6 Biochemistry & Molecular Biology 721 3873 5.4 18329 25 4966 6.9 Physics, Applied 666 3682 5.5 15547 23 4060 6.1 Physics, Condensed Matter 642 3160 4.9 13407 21 4246 6.6 Materials Science, Multidisciplinary 546 2734 5.0 12959 24 3987 7.3 Mathematics 481 1034 2.1 8305 17 2567 5.3 Chemistry, Analytical 460 1976 4.3 10084 22 3797 8.3 Physics, Particles & Fields 448 15426 34 10678 24 3078 6.9 Journal Chinese Physics Letters Acta Physico-Chimica Sinica Chinese Science Bulletin Communications in Theoretical Physics Chemical Journal of Chinese Universities-Chinese Physical Review D Chinese Chemical Letters Acta Chimica Sinica Physical Review B Chinese Medical Journal Solid State Communications High Energy Physics and Nuclear Physics-Chinese Edition Applied Physics Letters Spectroscopy and Spectral Analysis Physics Letters B Acta Botanica Sinica Journal of Applied Physics P AU AU/P 314 1401 4.5 251 1047 4.2 250 1245 5.0 231 611 2.6 225 998 4.4 184 11965 65 173 708 4.1 166 752 4.5 140 578 4.1 138 863 6.3 135 780 5.8 133 2335 18 119 115 113 111 105 6.2 5.2 85 4.1 6.0 739 598 9549 456 629 Non-international collaborative article International collaborative article 2944, 24% 9341, 76% Independent publication National collaborative article 4423, 47% 4918, 53% Cumulative number of articles 30000 25000 Cumulative number of articles 1996-2005 Exponential model 1991-1996 Exponential model 02/2010 20000 15000 10000 5000 0 0 1 2 3 4 5 6 7 8 9 1011 1213141516171819202122 Years since 1991 Year 2001 1999 1997 1995 1993 1991 1989 1987 1985 1983 1981 Share of world papers (%) Seven Major Industrial Countries (G7) - USA 38 37 36 35 34 33 32 31 30 29 Year 2005 2003 2001 1999 1997 1995 1993 1991 1989 1987 1985 1983 1981 Percent of SCI papers (%) 10 9 8 7 6 5 4 3 2 %UK %Japan %Germany %France %Canada %Italy %Russia %China 1 0 Year 2005 2003 2001 1999 1997 1995 1993 1991 1989 1987 1985 1983 1981 Percent of SCI articles (%) 9 8 7 6 5 4 3 2 %UK %Japan %Germany %France %Canada %Italy %Russia %China 1 0 Year 2005 2003 2001 1999 1997 1995 1993 1991 1989 1987 1985 1983 1981 Percent of SSCI papers (%) 16 14 12 10 8 6 4 %UK %Japan %Germany %France %Canada %Italy %Russia %China 2 0 Year 2005 2003 2001 1999 1997 1995 1993 1991 1989 1987 1985 1983 1981 Percent of SSCI articles (%) 8 7 6 5 4 3 2 %UK %Japan %Germany %France %Canada %Italy %Russia %China 1 0 研究的养成 熏陶 感谢 何玉山博士 Yuh-Shan Ho, Ph.D. E-mail: [email protected] http://web2.tmu.edu.tw/ysho/