从科技论文引文数据看三省农科院学科发展

对东北三省农科院发表的论文被中国科学引文库收录情况做了统计;采用引文分析法,分析、研究了论文被引情况,并对被引论文在各个相关专业技术领域的分布态势进行了分析,试图以客观的数据反映学科发展状况。     

参考文献著引中的信息缺失与编辑防范

结合编辑实践,通过实例分析,探讨科技论文参考文献引、著中信息缺失的几种表现形式,提出编辑在加工时应采取的防范措施。     

Preparation of board-like moldings from composites of isolated lignins and waste paper II: effect of inorganic salt addition on board performance and evaluation of practical use of MDF

Board-shaped composites with medium density (MDF) were prepared from isolated lignins and waste newspaper, in addition to preparation of the composites with high density (HB). The board properties of both composites concerning bending strength and water resistance were improved by the addition of hardwood acetic acid lignin (HAL). The internal bond strength and water resistance of MDF, in particular the degree of thickness swelling (TS), were also improved by prolonged molding time. Adding inorganic salts contributed to the improvement of TS. The effect depended on the charge of the cation. Considering practical utilization of lignin-based MDF as a structural material, its performance was evaluated by combination of the single-shear test of nailed joints and the modulus of rigidity. As a result, this MDF had sufficient strength to be utilized as an internal shear wall material. Therefore, lignin can be considered as an alternative to conventional adhesives for the production of boards such as HB and MDF.     

水产科研热点学科的期刊载文计量分析

通过分析《水产学报》和《中国水产科学》2002—2006年载文信息,对载文内容进行学科分类,试图探讨载文数量与水产科研热点学科之间的关系。分析结果表明,两刊在5年间的载文量共计1186篇,其中,以水产生物种质资源与遗传育种学科的论文发表量最多,为290篇,占总载文量的24.5%。水产生物病害与防治学科的论文发表量居第二位,为195篇,占总载文量的16.4%。水产品质量与食品安全是近年来发展迅猛的学科,但论文发表量并不多,5年间在两刊中达到发表水平的文章只有21篇,占总载文量的1.8%。对于渔业环境与生态学科而言,由于作者投稿选择期刊较分散,分析结果与实际略有偏差。结论认为,期刊载文计量分析能够反映出热点学科中的优势学科的基本水平,也能发现热点学科中基础研究相对薄弱的弱势学科。本研究旨在为学术期刊的组稿优化和学科凝炼提供参考依据,同时为科研人员的论文策划提供借鉴。     

学术论文写作和发表的技巧

论文的写作讲究一定的艺术,论文的格式必须体现规范,投稿发表也有一定的技巧。本文依据国家标准、观察期刊出版发行的现状、总结作者本人的论文写作发表实践的经验教训而成,以求教于广大学者。     

《四川农业大学学报》2003～2007年载文学术质量分析

应用文献计量学的方法,按照期刊评价体系中的学术水平指标对2003~2007年5年间《四川农业大学学报》载文的地区分布、学科分布、合著情况、论文基金资助情况、出版时滞、影响因子、立即指数、引文情况等进行统计分析,结果表明:四川农业大学学报的出版时滞大大降低,公共基础学科研究增长快速,基金论文的比例逐年增高,论文地区越来越广,合著率呈上升趋势。在此基础上,进一步提出提高《四川农业大学学报》学术质量的一些建议,以推动本刊的不断发展。     

《热带作物学报》2003～2006年载文分析

以2003~2006年出版的《热带作物学报》为统计对象,运用文献计量学的方法,如引文分析、统计分析等对该刊的载文、引文及作者情况等进行计量分析,归纳与分析该刊的一些特点,为进一步办好《热带作物学报》提供一定的依据。     

中国枣树研究论文的统计与分析

从１９５０年至１９９８年,在国内３４４种科技期刊上共计发表了约１６９９篇枣树论文。通过对这些论文的年代分布、期刊分布、内容分布及内容的期刊分布进行统计分析,提出了枣树雠的年代分布特征、内容分布特点、发表枣树论文核心期刊单位、以及各研究领域论文的重点期刊,指出品种选育和加工是枣树研究的薄弱环节。     

Ultrasonic treatment to improve the quality of recycled pulp fiber

The effect of ultrasound on the quality of recycled fibers was investigated. Ultrasound was applied to recycled pulp fiber suspension before ink removal by conventional flotation. The ultrasonic treatment induced an increase in the sedimentation volume of the fiber, which implies that the flexibility and bulkiness of the fiber increase. The water retention value of the ultrasonically treated fiber recovered from the loss caused by the recycling. These facts are due to a beating effect of the treatment. The paper sheets prepared from the ultrasonically treated fiber suspension showed higher sheet density, tensile strength, and brightness than that from an untreated fiber suspension. The process, which consists of ultrasonic treatment for 1 min following flotation deinking, requires about 1.4 times as much energy as the conventional flotation deinking process, but it induced 20% improvement in brightness. The results indicate that the ultrasonic treatment is effective in improving recycled fiber quality.This report was presented in part at the 48th Annual Meeting of the Japan Wood Research Society, Shizuoka, April 1998; and at the 5th Annual Meeting of the Japan Cellulose Society, Kyoto, July 1998     

以自然保护区为研究对象的近30年学术论文统计分析

采用文献计量的原理和方法,对1984~2013年我国以自然保护区为研究对象的学术论文发表情况进行统计分析研究。结果表明,以自然保护区为研究对象发表的学术论文共8 811篇,年平均293.7篇,论文数量总体上表现为随时间推移而增长均势;发表的学术论文作者总数为27 416人,合作度为3.111 6,合著率达75.88%;基金项目资助发表论文4 231篇,占48.02%,随时间推移呈增长趋势;论文发表主要集中在林业相关的期刊,且影响因子整体偏低;论文共被下载980 166次,被引用49 031次,呈现出先上升后降低的趋势;高被引论文共有1 362篇,主要反映自然保护区的生态系统、动植物区系与种群结构、社区发展与管理等方面的研究成果。