关于我校自然科学学术研究工作的计量分析

选择国际论文数量、国际论文学科分布、国际论文引文数量、国内论文数量、国内论文学科分布、国内论文与国际论文的数量比，以及科技论文高产作者情况等７项科学计量指标，对我校１９８８－１９９１年４年间自然科学基础研究与应用基础研究的状况作了计量分析，并据此提出发展我校自然科学基础研究与应用基础研究工作的几点思考．     

2007—2019年《实验动物科学》刊发论文的分析

在统计《实验动物科学》2007—2019年刊载的78期1477篇论文有关数据的基础上,对刊发论文基本情况(包括载文量,基金项目论文,论文的作者、单位分布、地区分布、合作度和合著率等)和论文内容(研究方向和研究热点)进行定量分析,以期探索本刊在实验动物学科发展中的作用,了解和把握学科发展趋势,为科技工作者搭建更好的学术交流与对话平台提供参考。     

基于文献计量的中国、日本基础研究领域国际科技合作比较研究

以科学引文索引数据库扩展版收录的中国、日本各自发表于2004～2008年的国际合著论文为研究对象,通过对论文在学科领域分布、国家分布、机构分布等方面的计量分析与比较,揭示了两个国家过去5年来在基础研究领域所开展的国际科技合作的基本表现、共同点与差异性。     

吉首大学SCIE收录论文的文献计量学分析

为了给学校的科研成果、学科建设和人才培养评价提供较客观准确的文献计量数据,以美国科学引文索引数据库扩展版（SCIE）为依据,对2007-2016年SCIE收录的吉首大学923篇科研论文,从论文数量、文献语种与类型、学科分布、期刊分布、作者分布、论文被引、基金资助等方面对检索结果进行文献计量学分析.结果表明,在统计期间,吉首大学SCIE收录论文呈稳步增长趋势;研究论文主要以期刊论文和英语语种为主;发文较多的学科领域有化学、物理学、数学等;发文较多的作者有张朝晖、肖竹平、李佑稷等;发文最多的期刊是International Journal of Systematic and Evolutionary Microbiology;基金资助产出论文最多的是国家自然科学基金.     

《陕西师范大学学报(自然科学版)》2003—2012年高被引论文和高下载论文的统计分析

以中国知网(中国学术文献网络出版总库,CNKI)为统计源,对《陕西师范大学学报(自然科学版)》2003—2012年刊发论文的被引和下载情况进行统计,以百分比法和限定次数法相结合确定了高被引论文(≥16)69篇和高下载论文(≥400)68篇,对高被引和高下载论文的频次分布、学科分布、年度分布、前15位作者排序、基金资助分布、引用文献类型、高被引论文和高下载论文的相关性等进行了分析.结果表明:2003—2012年学报共发表论文1 299篇,被引950篇,占全部论文的73.13%,总被引5 614次,篇均被引4.32次;发文总数5.31%的69篇高被引论文被引次数1 872,占总被引次数的33.35%;发文总数5.23%的68篇高下载论文下载次数39 021,占总下载次数187 857的20.77%;高被引和高下载论文大致都在发表5年以上;高被引论文的学科分布以资源与环境科学最高,其次是数学与计算机科学、物理学、生命科学、化学与材料科学、食品工程与营养科学、体育科学;高下载论文的学科分布仍以资源与环境科学为最,其次是物理学、化学与材料科学、生命科学、数学与计算机科学、食品工程与营养科学、体育科学;前15位作者有突出的业绩,是学报的核心作者;高被引论文和高下载论文相互重叠27篇,重叠率39.13%,表现出一定的相关性.研究结果可为今后学报的选题策划和组稿提供参考.     

2014年新疆CSCD论文计量分析

以《中国科学引文数据库(CSCD)》为数据源,对其2014年收录的新疆地区科技论文进行了包括作者分布、机构分布、发文期刊分布、学科分布,以及主要合作国家(地区)分布5个方面的统计分析,以此对新疆CSCD论文产出的组织结构、交流活动、学术水平进行了客观展示与评价,从而为科技管理部门提供了决策参考.     

基于CNKI的吉林农业大学2005—2009年发表期刊论文统计分析

利用CNKI的中国学术期刊网络出版总库检索平台,对近5年（2005—2009）吉林农业大学发表论文的年度分布、文献来源、论文项目资助来源、作者分布、学科分布以及中文关键词等几个指标进行了统计分析。     

会聚科学的测度及启示

 科学会聚是21世纪世界科学发展的趋势和选择。以SCI和SSCI数据库中“气候”研究主题文献为例,借助信息可视化软件和技术手段,绘制了学科可视化知识图谱,分析了会聚科学发展过程中的学科发展趋势。结果表明,全球气候研究分布于自然科学、社会科学、人文科学和跨学科等多个学科门类;气候研究的论文产出接近于指数增长趋势,学科数量接近于线性增长趋势。研究结果对科技人力资源的配置、高等教育人才的培养具有一定启示。     

2000-2006年SCI收录和引用中山大学论文情况分析

根据文献计量学原理,以科学引文索引数据库扩展版（Science Citation Index Expanded）收录中山大学论文数据为依据,对中山大学2000-2006年的科技论文被SCI收录情况按年度和学科分布等进行统计分析。     

基于《中文科技期刊数据库》的“文献检索课”研究论文统计分析

以《中文科技期刊数据库》为统计源,从论文发表的时间、论文著者、载文期刊以及学科分布等方面对1995—2004年间文献检索课方面的研究论文进行了统计分析。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

海南岛地体及其毗邻陆缘晚中生代—新生代古地磁研究和构造演化

本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

《Chinese Science Bulletin》SUBJECT INDEX TO VOLUME 59(2014)

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Achieving Unusual States of Matter Under High Pressure

The elongation method,originally proposed by Imamura was further developed for many years in our group.As a method towards O(N)with high efficiency and high accuracy for any dimensional systems.This treatment designed for one-dimensional(ID)polymers is now available for three-dimensional(3D)systems,but geometry optimization is now possible only for 1D-systems.As an approach toward post-Hartree-Fock,it was also extended to     

Exciton Seebeck in Molecular Systems

Various applications relevant to the exciton dynamics,such as the organic solar cell,the large-area organic light-emitting diodes and the thermoelectricity,are operating under temperature gradient.The potential abnormal behavior of the exicton dynamics driven by the temperature difference may affect the efficiency and performance of the corresponding devices.In the above situations,the exciton dynamics under temperature difference is mixed with