Source Journals Research Articles

Automated SOFC Design Exploration

Fuel cells are a clean alternative to internal combustion engines and many experts consider them to be the future of ground-transportation. Solid oxide fuel cells are already heavily used in Japan for clean energy grid storage applications. Unlike combustion of hydrogen and oxygen that only generates heat, electrochemical reactions of hydrogen and oxygen may be separated to harness ion and electron transport for high efficiency energy conversion. We present computer automated engineering of fuel cell stack design to maximize power production and minimize energy losses. Validated cell models are applied to 3-D stack simulations, where optimization algorithms obtain better designs, faster. Each simulation conserves flow, energy, species, and charge transport using efficient sparse segregated solvers. Automated workflows and state-of-the-art search algorithms allow for fast design space exploration of fuel cell material properties, dimensions, and boundary conditions. Bibliography [1] O. R. J. G. a. J. M. V. Costa-Nunes, "Comparison of the performance of Cu–CeO 2–YSZ and Ni–YSZ composite SOFC anodes with H 2, CO, and syngas," Journal of power sources, vol. 141, no. 2, pp. 241-249, 2005. [2] F. Scholz, "Thermodynamics of electrochemical reactions," Electroanalytical Methods. Springer Berlin Heidelberg, pp. 11-31, 2010. [3] A. D. S. B. B. a. J. G. P. Le, "Validation of a Solid Oxide Fuel Cell Model on the International Energy Agency Benchmark Case with Hydrogen Fuel," Fuel Cells, vol. 15, no. 1, pp. 27-41, 2015. [4] S. G. Bratsch, "Standard electrode potentials and temperature coefficients in water at 298.15 K," Journal of Physical and Chemical Reference Data , vol. 18, no. 1, pp. 1-21, 1989. Figure 1: In solid oxide fuel cells, hydrogen fuel diffusing through the porous anode (left) reacts with oxygen ions traveling across the electrolyte membrane separator (middle) and produce electrons conducting through the solid porous cathode (right). Power is generated by flow of electrons from anode through an external circuit to the cathode (top), where they recombine with oxygen, in the air feed diffusing through the porous cathode, to repopulate membrane oxygen ions. Figure 1

DESIDOC Journal of Library and Information Technology (DJLIT): A Bibliometric Analysis of Cited References

<p>The paper presents a bibliometric analysis of the 4821 cited documents appended to the 295 articles published in DJLIT during 2011-15. The citation analysis is based on various strictures such as studying distribution of citations, authorship pattern, degree of collaboration, distribution of reference sources, prominent authors and ranked list of core journals. The study revealed that there is dominance of single authorship with 1912 (39.65%) citations followed by two authors with 1152 (23.89%) citations, three authors with 456 (9.45%) citations and more than three authors with 386 (8%) citations. There has been the availability of a good degree of institutional publications as well. Year-wise authorship pattern is also specified so as to see the dominance of particular authorship pattern for the period considered under the study. The degree of authors’ collaboration for the present study is 0.51 and modified collaborative coefficient is 0.3661. Dr B.M. Gupta with 52 citations is the most prolific author. Dr K.C. Garg and Dr B.S. Kademani are at the second and third position respectively. The study further exposed the journal to be the mostly cited information source 2560 (53.10%) followed by websites (22.69%) and books (10.81%). Conference papers, reports, theses, workshop papers and seminar papers equally seem to be preferred domain with regard to using pertinent information source. Ranked list of journals denotes Scientometrics to be the most used journal (6.60%) by the authors contributing in DJLIT. The source journal is at the second position in the ranked list with 5.43%. A glance at the ranked core list of journals suggests that maximum journals are from foreign countries.</p>

Analysis of paper publishing conditions by postgraduate background staff in an upper first-class hospital in Guangxi Province during 2010-2014

Objective Based on the analysis of papers published by postgraduate background staff from an upper first-class hospital in Guangxi during 2010-2014, claimed that the medical scientific research administrators should pay more attention and give more support to such staff. Methods Literature metrology method was used to describe and analyze the hospital staff, postgraduate staff resource composition and published papers from the annual growth rate, per capita, constituent ratio, quantitative analysis of core authors group. Results In the latest five years, the hospital postgraduate staff had published 169 papers, 143 papers were published in statistical source journals or SCI; the amount of paper publication increased annually, the average of per author published paper was 0.39; but the quality still has a lot space for improvement. Conclusions Although the amount of paper publication by postgraduate background staff increased annually, the average paper number published per author showed the features of great fluctuation, the quality of those papers should be improved. The core authors were formed, but the quantity of this author group needs to be increased, as well as the scientific quality of those core authors. Key words: Postgraduate education background; Metrological analysis; Papers; Upper first-class hospital

Bibliometric analysis of scientific articles on epidemiological study of burns in China

Objective: To analyze the current status of epidemiological study of burns in China, and to explore the related strategies. Methods: Retrospective or cross-sectional scientific articles in Chinese or English on epidemiological study of burns in China published from January 2005 to December 2015 were systemically retrieved from 4 databases. The databases include PubMed, Embase, China Biology Medicine disc, and Chinese Journals Full-text Database. From the results retrieved, data with regard to publication year, journal distribution, number of institutions participated in the study, affiliation of the first author and its location, and admission time span and age of patients in all the scientific articles were collected. Furthermore, the definition of age range and the grouping method of age of pediatric patients in English articles on epidemiological study of pediatric burns of China were recorded. Data were processed with descriptive statistical analysis. Results: A total of 256 scientific articles conforming to the study criteria were retrieved, among which 214 (83.59%) articles were in Chinese, and 42 (16.41%) articles were in English; 242 (94.53%) articles were retrospective studies, and 14 (5.47%) articles were cross-sectional studies. During the 11 years, the number of the relevant articles was fluctuant on the whole. The scientific articles were published in 130 journals, with 42 English articles in source journals for SCIENCE CITATION INDEX EXPANDED-JOURNAL LIST, accounting for 16.41%, and 116 Chinese articles in Source Journal for Chinese Scientific and Technical Papers, accounting for 45.31%. Totally 215 (83.98%) articles were single-center studies, and 29 (11.33%) articles were multicenter studies which were conducted by three or more centers. The number of affiliations of the first author of articles was 161 in total. The top 10 institutions regarding the article publishing number published 58 articles, accounting for 22.66%. Scientific articles on epidemiological study of burns were retrieved with location of affiliation of the first author in 31 provinces, autonomous regions, and municipalities directly under the Central Government in Mainland China, and also in Taiwan Province and Hong Kong Special Administrative Region, among which Shanghai ranked first with 24 (9.38%) articles published. The admission time span of patients in the articles ranged from 3 months to 47 years, with 120 (46.87%) articles from 3 months to 5 years, 79 (30.86%) articles from 6 to 10 years, and 57 (22.27%) articles more than 10 years, respectively. Regarding the age of patients in the study, 123 articles were on epidemiological study of pediatric burns, and 16 articles on epidemiological study of elderly burns, accounting for 48.05% and 6.25%, respectively. Further analysis of articles on epidemiological study of pediatric burns in English showed that there was no standard definition of age range or unified grouping method of age for pediatric burn patients. Conclusions: The epidemiological study of burns in China has been carried out nationwide, but the number of institutions conducted relevant study is not that much, and multicenter epidemiological studies remain scanty. The quality of the articles needs to be further improved. The epidemiological study of elderly burns is relatively deficient and calls for more attention. The epidemiological study of burns in China lacks regularity or continuity in time scope. There is an urgent need for the guideline on classification method for items of epidemiological study of burns in China so as to standardize the related research.

The 50 Most-cited Articles in Gastroenterology and Hepatology from Mainland China.

Objective:To identify and analyze the 50 most-cited gastroenterology and hepatology articles originating from mainland China.Methods:We utilized the 2015 edition of Journal Citation Reports and PubMed to determine the 50 most-cited gastroenterology and hepatology articles from 75 professional journals and four leading journals in clinical medicine, which are The New England Journal of Medicine, The Lancet, The Journal of the American Medical Association, and The British Medical Journal. Then we excluded the articles written outside mainland China and collected the basic information, including the title, authors, year of publication, source journal, city, institution, number of citations, and topic of the research.Results:The number of citations for the top 50 papers ranged from 279 to 89 (mean, 129). These articles were published between 2005 and 2012, in which 2009 was the year with the largest number of highly cited papers(13). All articles were published in 15 journals. The journal Hepatology published the largest number of articles(21), followed by Journal of Gastroenterology and Hepatology(4), Journal of Hepatology(4) and World Journal of Gastroenterology(4). The top 50 articles originated mainly from Shanghai(20), Guangzhou(13) and Beijing(6). Sun Yat-sen University produced most highly cited papers(10). The number of basic research was far more than clinical research, of which the ratio was about 1.78(32:18). In all these articles, hepatocellular carcinoma was the most-discussed topic(19), followed by hepatitis B virus(8) and endoscopic(5).Conclusions:Although a large gap remains between mainland China and the global community, the gastroenterology and hepatology research from China is gradually recognized by the world.

基于文献计量法的中国景观连接度应用研究进展

PDF HTML阅读 XML下载 导出引用 引用提醒 基于文献计量法的中国景观连接度应用研究进展 DOI: 10.5846/stxb201602290341 作者: 作者单位: 中国科学院重庆绿色智能技术研究院,中国科学院重庆绿色智能技术研究院;西南大学地理科学学院,中国科学院重庆绿色智能技术研究院,中国科学院重庆绿色智能技术研究院,西南大学地理科学学院,北京林业大学国际交流与合作处,重庆市规划研究中心 作者简介: 通讯作者: 中图分类号: 基金项目: 国家自然科学基金资助项目（51408584，41571497）；中国科学院西部之光博士资助项目（Y43A370N10）；重庆科委应用开发资助项目（cstc2014yykfC20002，Y33A172N10） A bibliometric review of Chinese studies on the application of landscape connectivity Author: Affiliation: Chongqing Institute of Green and Intelligent Technology, Chinese Academy of SciencesKey Laboratory of Reservoir Aquatic Environment,Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences; School of Geographical Sciences, Southwest University,Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences,Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences,School of Geographical Sciences, Southwest University,, Fund Project: 摘要 | 图/表 | 访问统计 | 参考文献 | 相似文献 | 引证文献 | 资源附件 | 文章评论 摘要:景观连接度反映了景观对物种或某种生态过程在生境斑块之间运动的促进或阻碍作用，对维持景观格局及生态过程的完整性和连续性具有重要指示意义。在当前全球环境变化，自然生境丧失和破碎化不可避免的情况下，景观连接度的评价、模拟与应用已成为景观生态学、保护生物学等相关学科的研究热点。基于CNKI和Web of Science数据库，检索1999-2015年间国内发表的景观连接度期刊论文，通过文献计量法，分别从年发文量、来源期刊、研究机构、研究区域、研究目的、景观类型、景观尺度以及研究方法等多个视角分析国内该领域应用研究进展以及发展趋势。经检索共得到文献240篇，其中英文43篇。分析发现，近20年国内该领域年发文量总体呈显著增长趋势；《生态学报》、《生态学杂志》和Urban and Landscape Planning为主要刊载期刊；研究力量集中分布在北京、南京等东部18所科研机构，文献量占到43.75%；研究目标区域也以东部为主（52.2%），而对中西部生态敏感脆弱区研究较少；研究目的以景观规划为主，但针对物种保护的研究较弱，仅占11.25%，且主要关注大熊猫等被公众熟知的珍稀濒危物种；城市、城乡等人工景观是常见的景观研究类型，相比之下，自然景观所占比例较低；研究的空间尺度集中在 < 5000 km2的中小尺度域，占72.5%，景观粒度以30 m的中等分辨率居多。识别出14种具体度量方法，常用的包括最小费用模型、基于图论原理的功能连接度指数和网络结构指数，以及景观格局指数等；关注功能性连接和多方法的综合应用已成为当前研究的趋势；度量方法的一些参数，如最小费用模型阻力赋值或距离阈值选择主要依据专家经验或已有文献，而针对目标物种采用实证研究的则较少。最后，对国内当前该领域的研究现状和不足展开讨论并展望了未来发展，以促进我国景观连接度后续研究。 Abstract:Landscape connectivity has been defined as the degree to which landscapes facilitate or impede the movement of species between habitat patches. It is a critical concern for the maintenance of integrity and continuity of landscape structure and ecological processes. With global environmental degradation, habitats loss and natural area fragmentation is inevitable. As such, studies on landscape connectivity are the focus of applied landscape ecology. A well-connected ecological network is believed to facilitate energy and matter fluxes, species dispersal, genetic exchange, and many other ecological processes, and contribute to the overall maintenance of ecosystem stability and integrity. This paper presents a review of the literature on the application of landscape connectivity based on 240 publications from 1999 to 2015, in which we evaluated Chinese state-of-the-art achievements and developments on this topic. The literature review and data analysis based on the CNKI and Web of Science databases, were organized into eight categories using bibliometrics: number of published papers per year, source journals, research institutions, study areas, research objectives, landscape types, landscape scales and study methods in connectivity studies. We found a exponential increase in the number of publications from 1999 to 2015, especially after 2008. The majority were published in the journals "Acta Ecologica Sinica," "Chinese Journal of Ecology," and "Urban and Landscape Planning." Eighteen major research organizations from Beijing, Nanjing and other eastern areas of China, contributed 43.75% of the total papers. The main study areas were also concentrated in eastern region, then the far west, with the least in central region. Providing pragmatic solutions for landscape planning was the main research objective, and only 11.25% of papers targeted species conservation, usually regarding endangered or rare species that are well known to the public, such as the giant panda. Artificial landscapes, including urban or rural landscapes were the major target of research; whereas, 27.92% of papers were about natural landscapes. The spatial extent of the study area was less than 5000 km2 in 72.5% of the studies. The spatial resolution almost varied between 6 m and 90 m pixel values, with the median being 30 m. The predominant analytic approach was functional connectivity(63.75%), followed by structural connectivity(36.25%). We identified 14 methods measuring connectivity. The four most utilized methods were least-cost analysis, graph-based functional connectivity indices, network structural indices, and landscape pattern metrics. In addition, applying a combination of various methods has become a trend in the recent connectivity application studies. Expert opinions and previous research results were typically used to evaluate the resistance values of the landscape matrix and the distance thresholds. However, different experts in isolation may assign different values and therefore affect the reliability of evaluation. Few analyses in China obtained these important parameters by means of field data or empirical study for a specific organism. We discuss problems and prospects of applying landscape connectivity in China to promote future research and application. 参考文献 相似文献 引证文献

George Frideric Handel: Collected Documents ed. by Donald Burrows et. al.

George Frideric Handel: Collected Documents. Compiled and edited by Donald Burrows, Helen Coffey, John Greenacombe, Anthony Hicks. Volume 2, 1725-1734. Cambridge: Cambridge University Press, 2015. [xv, 857 p. ISBN 9781107019546. $180.] Illustrations, bibliography, indexes.George Frideric Handel: Collected Documents (HCD), of which the first volume (16091725) appeared in April 2014, is a comprehensive collection of documents from contemporaneous sources relating to Handel's life and work. Of the planned five volumes, the second (1725-1734), reviewed below, appeared in 2015. The third volume (1734-1742) is, as of this writing, slated for publication in January 2017. The research project under the direction of Donald Burrows, based at The Open University's London Regional Centre in Camden Town, dates back to 2007.Until 2014, the principal reference work was the fourth volume of Handel-Handbuch (HHb), dedicated to documents covering Handel's entire life, and published in German (ed. Walter Eisen and Margret Eisen [Kassel: Barenreiter, 1985]). It extracted data from primary sources collected by Otto Erich Deutsch (Handel: A Documentary Biography [London: A. and C. Black, 1955]), plus some additional materials, together with the German texts of Deutsch's commentaries. Since 1985, however, original research as well as secondary literature on Handel has grown enormously (see, for example, Mary Ann Parker, G. F. Handel: A Guide to Research [Oxford: Routledge, 2013]). To name some notable examples: the work of Ursula Kirkendale (first in 1967) in the Marquis Francesco Maria Ruspoli archive as well as later in the Archivio Segreto Vaticano, both of which redefined Handel's Italian years (Handel with Ruspoli: New Documents from the Archivio Segreto Vaticano, December 1706 to December 1708, Studi Musicali 32, no. 2 [2003]: 301-48); and the complete documentation on the composer's financial activities that comes from the Bank of England archive, online since 2012. (The HCD fifth volume will also have two tabular appendices related to Handel's investments and bank accounts plus his payments of parish rates on his London residence).The HCD returns to the original sources, collects and organizes material discovered during the last fifty years, and presents the documents chronologically in the original languages with English translation as needed and a commentary. Transcriptions of documents are diplomatic (true to the original) and provided in full, not just as summaries. Also included is a detailed opera calendar at the opening of each chapter. Compared to Deutsch, some documents that were only listed in HHb are now fully accessible. For example, as minor a document as the burial record of Michael Dietrich Michaelsen's second wife (the first one was Handel's elder sister, Dorothea Sophia) is now presented in its entirety. HHb records the source (Journals of the House of Lords) for when Handel first applied for naturalization (13 February 1727), but only HCD gives a complete transcription for the documents relevant to the entire application procedure (pp. 101-6), with a concise commentary on each document. The critical work helps the reader to locate effortlessly the sources found in archives and libraries in Germany, Great Britain, Ireland, Italy, the Netherlands, Poland, Russia, Sweden, Switzerland, and the United States of America.HCD presents a large number of different materials that are not included in HHb: both manuscript sources of a private nature, such as diaries (Antonio Cocchi and Gertrude Savile) and letters (Giuseppe Riva), as well as public sources, such as legal, financial, and ecclesiastical records, and even court documents (i.e., the private expenses of George I and English court payments). Printed sources primarily include newspapers, weekly papers from London, provincial British cities, and abroad (e.g., The Post-Boy, The Daily Post, Hamburger Relations-Courier), and advertisements for theater and concert performances. …

中国遗产旅游研究进展与启示

近年来，遗产旅游逐渐成为研究热点，尤其是与我国供给侧结构性改革相适应，伴随着“全域旅游”、“互联网+”和“旅游+”等新理念的提出，对遗产地旅游开发及其管理创新提出了更高要求。该论文基于国内遗产旅游开发领域最新研究文献及实践，初步提出了我国遗产旅游发展思路。对国内文献的研究，主要基于中国期刊全文数据库文献，以“遗产旅游”为主题进行检索，选取2011年1月到2016年4月中文核心期刊和CSSCI来源期刊文献，共275篇，并选取其中的部分代表文献进行典型分析。最后，结合国内外遗产旅游进展与经验，初步提出了规范我国遗产旅游开发的相关对策和建议。 In recent years, with the improvement of people’s life, the demand of heritage tourism is also increasing. Especially, accompanied by the new policies, such as the structural reform of supply-side, which enlightens the managers of heritage sites only the improvement of tourist service quality and the innovation of heritage sites can provide visitors with effective supply. Furthermore, with the proposed new conceptions, such as the “global tourism”, “internet plus” and “tourism plus”, it is also given a new opportunity to the development of heritage tourism. Based on Chinese journal full text database and the theme of “heritage tourism”, the paper retrieved 275 relevant literatures which were from Chinese core journals and CSSCI source journals between January 2011 and April 2016, and selected and analyzed some representative articles. It divided the research content of heritage tourism into eight categories, such as heritage tourism authenticity, sustainable development, the protection and utilization, heritage tourism development, the residents of heritage sites, tourism management, the tourists and tourism interpretation system. Finally, it reviewed each category briefly.

Promotion of the Journal of Exercise Rehabilitation to the international level based on journal metrics.

The aim of this study was to use journal metrics to confirm that the Journal of Exercise Rehabilitation has been promoted to the international level after changing its language to English-only in April 2013. Journal metrics, including the number of articles per year, countries of authors, countries of the editorial board members, impact factor, total citations, and the Hirsch index, were counted or calculated based on the journal homepage and the Web of Science Core Collection in December 2016. The number of citable articles was 52, 62, 59, and 74 in 2013, 2014, 2015, and 2016, respectively. All authors were from Korea in 2013 and 2014, but the authors were from 11 countries in 2015 and from 16 countries in 2016. The editorial board members are currently from 11 countries. The impact factor without self-citations for 2015 was 0.912, corresponding to a Journal Citation Reports ranking of 32.9% out of 82 journals in the category of sport sciences. The total citations increased from 1 in 2013 to 130 in 2016. This journal was cited in 208 other source journals in the Web of Science. The citing authors were from 47 countries. The Hirsch index was 7, and review articles were the most frequently cited articles. The above results show a rapid development to the international level over 4 years. The introduction of digital technology to journals to improve their accessibility across multiple platforms is recommended.

Mapping the scientific research on non-point source pollution: a bibliometric analysis.

A bibliometric analysis was conducted to examine the progress and future research trends of non-point source (NPS) pollution during the years 1991-2015 based on the Science Citation Index Expanded (SCI-Expanded) of Web of Science (WoS). The publications referencing NPS pollution were analyzed including the following aspects: document type, publication language, publication output and characteristics, subject category, source journal, distribution of country and institution, author keywords, etc. The results indicate that the study of NPS pollution demonstrated a sharply increasing trend since 1991. Article and English were the most commonly used document type and language. Environmental sciences and ecology, water resources, and engineering were the top three subject categories. Water science and technology ranked first in distribution of journal, followed by Science of the total environment and Environmental Monitoring and Assessment. The USA took a leading position in both quantity and quality, playing an important role in the research field of NPS pollution, followed by the UK and China. The most productive institution was the Chinese Academy of Sciences (Chinese Acad Sci), followed by Beijing Normal University and US Department of Agriculture's Agricultural Research Service (USDA ARS). The analysis of author keywords indicates that the major hotspots of NPS pollution from 1991 to 2015 contained "water," "model," "agriculture," "nitrogen," "phosphorus," etc. The results provide a comprehensive understanding of NPS pollution research and help readers to establish the future research directions.

Mapping the literature of hospital pharmacy

Objectives: This study describes the literature of hospital pharmacy and identifies the journals most commonly cited by authors in the field, the publication types most frequently cited, the age of citations, and the indexing access to core journals. The study also looks at differing citation practices between journals with a wide audience compared to a national journal with a focus on regional issues and trends in the field.Method: Cited references from five discipline-specific source journals were collected and analyzed for publication type and age. Two sets were created for comparison. Bradford’s Law of Scattering was applied to both sets to determine the most frequently cited journals.Results: Three-quarters of all cited items were published within the last 10 years (71%), and journal articles were the most heavily cited publication type (n¼65,760, 87%). Citation analysis revealed 26 journal titles in Zone 1, 177 journal titles in Zone 2, and the remaining were scattered across 3,886 titles. Analysis of a national journal revealed Zone 1 comprised 9 titles. Comparison of the 2 sets revealed that Zone 1 titles overlapped, with the exception of 2 titles that were geographically focused in the national title.Conclusion: Hospital pharmacy literature draws heavily from its own discipline-specific sources but equally from core general and specialty medical journals. Indexing of cited journals is complete in PubMed and EMBASE but lacking in International Pharmaceutical Abstracts. Gray literature is a significant information source in the field.

Citation analysis of the 100 most common articles regarding distal radius fractures.

Bibliometric studies are increasingly being utilized as a tool for gauging the impact of different literature within a given field. The purpose of this study was to identify the most cited articles related to the management of distal radius fractures to better understand how the evidence of this topic has been shaped and changed over time. We utilized the ISI web of science database to conduct a search for the term "distal radius fracture" under the "orthopaedics" research area heading, and sorted the results by number of times cited. The 100 most cited articles published in orthopedic journals were then analyzed for number of citations, source journal, year of publication, number of authors, study type, level of evidence, and clinical outcomes utilized. The 100 most cited articles identified were published between 1951 and 2009. Total number of citations ranged between 525 and 67, and came from ten different orthopedic journals. The largest number of articles came from J Hand Surg Am and J Bone Joint Surg Am, each with 32. Consistent with previous analyses of orthopedic literature, the articles were primarily clinical, and of these, 53/76 were case series. The vast majority were evidence level IV. Only a small percentage of articles utilized patient reported outcome measures. These data show that despite distal radius fractures being a common fracture encountered by physicians, very few of the articles were high quality studies, and only a low proportion of the studies include patient reported outcome measures. Surgeons should take this lack of high-level evidence into consideration when referencing classic papers in this field. Analysis of the 100 most cited distal radius fracture articles allows for delineation of which articles are most common in the field and if a higher level of evidence correlates positively with citation quantity.

The Optimization of PEM Fuel Cell Performance Using the CFD Method Combined with Experimental Validation

: The polymer electrolyte membrane fuel cell (PEMFC) possesses many advantages for both automotive and stationary application, including high energy efficiency, low operating temperature, zero emission, and so on. Aside from the fact that great improvement should be made on its key materials, i.e., the ORR electrocatalysts and proton exchange membrane, it is believed that the PEM fuel cell performance is greatly affected by the operating temperature, gas inlet humidity as well as the flow pattern, and so on [1,2]. Thus, in this work, a 3D steady state model is established to investigate detailedly the effects of the flow pattern (co-flow and counter-flow), the anode and cathode gas inlet relative humidity (RH) on the cell performance. The governing equations of the 3D model result from careful analysis on the electro-chemical reactions, current conservation, membrane proton migration, membrane water transport and water-vapor phase transition. The membrane water transport takes into accounts the electro-osmatic drag and water back diffusion, and the conservation of momentum, species and energy is applied to all components of the PEM fuel cell. Experimental validation is also performed and fits very well with the simulation. Figure 1 shows the current density distribution for different flow patterns: (a), co-flow and (b), counter-flow. The corresponding achievement will offer an efficient guide on the design and performance optimization of PEMFC. Acknowledgements This work was supported in part by National Natural Science Foundation of China (Grant No. 21373135 and 21533005) and Science Foundation of Ministry of Education of China ( Grant No. 413064). References K. Dannenberg, P. Ekdunge, G. Lindbergh, Mathematical model of the PEMFC, Journal of Applied Electrochemistry, 2000, 30: 1377-1387. S.H. Ge, B.L. Yi, A mathematical model for PEMFC in different flow modes, Journal of power sources, 2003, 124: 1-11. Figure 1

Bibliometric analysis of scientific articles on evidence-based nursing of burn in the mainland of China

To analyze the current research status of evidence-based nursing of burn in the mainland of China, in order to provide basis for the improvement of scientificity of burn nursing practice. Chinese scientific articles on evidence-based nursing of burn in the mainland of China published from January 1997 to December 2015 were retrieved from Chinese Biology Medicine disc, Chinese Journals Full-text Database, Wanfang Database, and VIP Database. From the results retrieved, date with regard to publication year, region of affiliation of the first author, journal distribution, literature type, literature quality assessment, topic of evidence-based research, fund program support, implementation of evidence-based practice steps, and language and quantity of reference. Data were processed with Microsoft Excel software. A total of 50 articles conforming to the criteria were retrieved. (1) Articles about evidence-based nursing of burn arose in 2004. Compared with that in the previous year, there was no obvious increase in the number of relevant articles in each year from 2004 to 2011. The number of literature in 2012 was obviously increased than that in each year from 2004 to 2011, while the number of literature in each year from 2012 to 2015 was not obviously increased compared with that in the previous year. (2) The regions of affiliation of the first author were distributed in 13 provinces, 3 minority autonomous regions, and 3 municipalities, with the largest distribution in East China, and Northwest China and Southwest China in the follow. (3) The articles were published in 32 domestic journals, with 9 (28.12%) nursing journals, 5 (15.62%) burn medical related journals, and 18 (56.25%) other journals. Twenty (40%) articles were published in Source Journal for Chinese Scientific and Technical Papers. (4) Regarding the literature type, 31 (62%) articles dealt with clinical experiences, 17 (34%) articles dealt with scientific research, and 2 (4%) articles dealt with case report. (5) There were 21 quantitative study articles and 29 narrative study articles, all with low quality. (6) The topics of evidence-based research in these articles were mainly burn rehabilitation, burn nursing technology, pediatric burn, inhalation injury and airway management, and complications of burn injury. Only one study was supported by fund program. (7) Only one article described complete evidence-based practice steps. (8) The literature cited 57 English articles as references, with an average of 1.14, and 316 Chinese articles, with an average of 6.32. The concept of evidence-based nursing of burn has been initially formed in the mainland of China. The number of relevant articles is on the rise, but the quality needs to be further improved. There is an urgent need to improve nurses' understanding of evidence-based nursing and their command of the method of evidence-based practice through on-job training, so as to improve the scientificity and effectiveness of burn nursing.

A Bibliometric Analysis of the 100 Most-cited Articles in Rhinoplasty.

Citation analysis aims to quantify the importance and influence of a published article within its field. We performed a bibliometric analysis to determine the most highly cited articles within rhinoplasty and their impact on current practice. The 100 most-cited articles relating to rhinoplasty, between and inclusive of January 1864 to September 2015, were extracted from Web of Science in October 2015. Title, source journal, publication year, total citations, average citations/year, type of article, level of evidence, country of origin, main focus, use of outcome measures, incorporation into "Selected Readings in Plastic Surgery," and funding status were recorded. The total number of citations per article ranged from 61 to 276 (1.5-12.1 average citations per year). Surgical technique was the focus of 53% of articles, particularly those for reconstruction (75%). The United States produced 72% of articles compared with 8% from the United Kingdom. The top 100 articles were published within 20 journals; "Plastic and Reconstructive Surgeons" contributed the most articles (n = 57). None of the articles achieved level 1 or 2 of evidence (Oxford Centre for Evidence-Based Medicine levels of evidence, 2011), with most achieving level 4 evidence (n = 64). Case-series were the most popular methodology (n = 37). Few articles used validated outcome measures (n = 21). Twenty-nine percent were referenced in "selected readings." Eighty-nine percent were unfunded studies. These top 100 articles are used in current teaching material and underpin surgical decision making. Developing and using validated objective assessment tools will benefit surgeons, patients, and the greater scientific community in objectively evaluating techniques with the most favorable results.

Modeling of Conductivity of Lithium Salt in Electrolytes for Lithium-Ion Batteries

The lithium ion battery is the most competitive power source for electric vehicles needed in the future, thus attracting extensive interest. The performance of a lithium ion battery depends to a great extent on the conductivity of electrolyte solution, because the conductivity of electrolyte solution is related to transport process and play an important role in field of lithium batteries as knowledge of the conductivity is necessary for the design of Li cells [1]. The conductivity provides also useful insights on ion solvation and association. We present in this work a comparative study on experimental values of conductivity of several formulated electrolytes (pure solvents, binary or ternary systems involving a lithium salt) with calculated values by modelling. At first, by using different well-known equations based on Stock-Einstein, Jones-Dole and Bjerrum theories and of the solvent-solvent and solvent-salt interactions a model of conductivity ionic had been developed. The relative permittivity values of the electrolytes as well as the B- coefficients of the Jones-Dole equation for the relative viscosity of concentrated electrolyte solutions have been determined as a function of the temperature. Finally, the calculated values were then compared with experimental data of conductivity to evaluate the predictive capability of the model. Excellent agreements were obtained between calculations and experimental data electrolytes as a function of temperature with deviations up to (4 and 10) %. Results obtained by modeling during this work will guide the formulation of safer electrolytes able to improve the performances of lithium-ion batteries of lithium-ion batteries and the lifetime [1] F.Blanchard, B. Carré, P.Willmann, D. Lemordant, Journal of power sources. 109 (2002) 203-213.

Mapping the literature of hospital pharmacy.

This study describes the literature of hospital pharmacy and identifies the journals most commonly cited by authors in the field, the publication types most frequently cited, the age of citations, and the indexing access to core journals. The study also looks at differing citation practices between journals with a wide audience compared to a national journal with a focus on regional issues and trends in the field. Cited references from five discipline-specific source journals were collected and analyzed for publication type and age. Two sets were created for comparison. Bradford's Law of Scattering was applied to both sets to determine the most frequently cited journals. Three-quarters of all cited items were published within the last 10 years (71%), and journal articles were the most heavily cited publication type (n=65,760, 87%). Citation analysis revealed 26 journal titles in Zone 1, 177 journal titles in Zone 2, and the remaining were scattered across 3,886 titles. Analysis of a national journal revealed Zone 1 comprised 9 titles. Comparison of the 2 sets revealed that Zone 1 titles overlapped, with the exception of 2 titles that were geographically focused in the national title. Hospital pharmacy literature draws heavily from its own discipline-specific sources but equally from core general and specialty medical journals. Indexing of cited journals is complete in PubMed and EMBASE but lacking in International Pharmaceutical Abstracts. Gray literature is a significant information source in the field.

Back to the past: on the shoulders of an academic search engine giant

A study released by the Google Scholar team found an apparently increasing fraction of citations to old articles from studies published in the last 24 years (1990-2013). To demonstrate this finding we conducted a complementary study using a different data source (Journal Citation Reports), metric (aggregate cited half-life), time spam (2003-2013), and set of categories (53 Social Science subject categories and 167 Science subject categories). Although the results obtained confirm and reinforce the previous findings, the possible causes of this phenomenon keep unclear. We finally hypothesize that first page results syndrome in conjunction with the fact that Google Scholar favours the most cited documents are suggesting the growing trend of citing old documents is partly caused by Google Scholar.

PATRONES CULTURALES DEL PERIODISMO DE FUENTES: LA GESTIÓN DE LA COMUNICACIÓN SOBRE EMERGENCIAS EN LA ADMINISTRACIÓN PÚBLICA EN ESPAÑA. LA CRISIS DEL ÉBOLA Y EL TERREMOTO DE LORCA

The activity of informing is not only based on getting the information; there is a branch or culture called “Source journalism” that provides data to journalists, who report directly to citizens. It is known as “source journalism” because it is done from the information source. The professionals affliated to this branch or journalistic culture are usually the so-called Communication Directors (Dircom). For the administration, the function of informing is an obligation based on the 20th article of the Constitution. From that article derives the right of the citizens to get information about the activities of the administration, those activities can be general or particular according to the interests or fundamental rights of a person. As a consequence, the administration is an information source for journalists. This work is about the peculiarities of performing the public function of informing as part of the administration and about the vicissitudes to which Communication Directors are subjected. The practical cases analyzed are the management of the Public Information during the Lorca earthquake in 2011 and the media crisis in Spain derived from the Ebola virus in 2014.

The fifty most cited articles of Arab countries in the orthopaedic literature

Background: Several medical specialties have identified and ranked the top cited articles in their fields, including orthopaedics. In this study, our aim was to rank the top 50 orthopaedic articles in Arabic-speaking countries and identify the characteristics that make them more citable. Methods: Science Citation Index Expanded was searched for citations of articles originating in Arabic speaking countries and published in any of the 67 journals in the category “orthopaedics” from 1988 to 2014. We identified and ranked the 50 most cited articles and determined the citation density. Information noted for each article included authors, year of publication, country of origin, source journal, article type, and field of research. Results: Of all orthopaedic articles, only 0.8% originated from Arabic speaking countries. The top 50 most cited articles had between 22-124 citations; the citation density ranged from 0.89-8.27 citations/years. The articles were published in 17 of the 67 journals (seven general and 10 subspecialty journals), and all were published in English. The majority were clinical articles (96%), and the most common fields were general orthopaedics (26%) followed by spine surgery (20%) and pediatric orthopaedics (20%). The top 50 articles originated mainly from Saudi Arabia (40%) and Kuwait (18%). Conclusions: Arab countries have contributed less than 1% to the orthopaedic scientific literature. The list of most cited articles and the characteristics that made them more citable than others may be useful for researchers from this area to work on improving future research.