纳米二氧化钛薄膜制备研究进展

根据近年来国内外TiO2功能薄膜的研究现状,对化学气相沉积法、水解-沉淀法、液相沉积法、溶胶-凝胶法、溅射法、离子束辅助沉积法等化学和物理制备方法的研究进展进行了综述,并对其优缺点进行了比较和评述.     

海洋立管系统严重段塞流研究进展

随着海洋石油工业的日益发展,出现了各种各样的立管。由于管道形状和海底复杂地形等因素,经常出现严重段塞流这种特殊的流型,这种特殊的流型会造成设备损坏和产量降低等诸多危害。因此,对海洋立管系统的严重段塞流进行研究有很重要的意义。总结了立管系统严重段塞流的国内外研究现状,包括研究方法、产生机理、特性参数和理论模型等,以期为进一步研究立管系统严重段塞流提供参考。     

生物降解塑料的研究现状及发展前景

介绍了国内外生物降解塑料的发展现状及可完全生物降解塑料的种类,阐述了我国可完全生物降解塑料领域的研究现状及成果,指出了在生物降解塑料行业存在的问题及发展方向。     

模糊控制技术及其在化工中的应用

介绍了模糊控制技术的发展历程和特点,讨论了模糊控制技术的缺点和研究热点,概述了模糊控制技术在化工中的应用,提出了模糊控制技术的发展方向。     

Coastal trapped waves in the southern Caspian Sea

Previous studies reported coastal trapped waves (CTWs) in the Caspian Sea (CS). This study deals with the generation mechanisms, the temporal and spatial variability of CTWs in this area, and their transformations during propagation from the origin to the destination using recent measurements and high-resolution numerical simulations. CTWs are observed at all stations with periods of 2–6 days after northerly storms. The Absheron Peninsula, old Sefidrud delta, and Nur coasts were identified as the CTWs prone regions. The generation of CTWs in these locations was confirmed using numerical experiments. The propagation away from the generating location of CTWs was analyzed using a representative real wind storm. In the west part of the CS, the generation mechanism of CTWs is mainly similar to the barotropic Kelvin waves; in contrast, it is similar to the continental shelf waves in the southern shelves. The results can be used to study the contribution of generated CTWs to the transport of sediment and biological materials in all large lakes.     

岩石力学数值方法的作用与地位浅析

论述了岩石力学传统的研究方法的局限性，指出了岩石力学数值研究方法的优势与作用，同时探讨了岩石力学数值方法、数值分析软件当前存在的问题及不足，分析了21世纪岩石力学数值方法所能承担的及应该承担的任务。     

Sediment chemistry and nutrient influx in a hydrologically restored bottomland hardwood forest in Midwestern USA

Exchanges of total N and C between a river and its floodplain forest have been enhanced by sedimentation processes during flood pulses at a 5‐ha bottomland hardwood forest located at the Olentangy River Wetland Research Park in central Ohio. In the spring of 2000, the forest was hydrologically restored by notching an artificial levee that had separated the Olentangy River and its floodplain forest for 100 years. One‐hundred flat sediment traps (30 cm × 30 cm) were used to collect sediment samples during spring/summer flooding events from 2003 to 2005. Results showed that sediment deposition is determined by the landscape variability during flooding events, Net sediment deposit in the wettest area averaged 134 ± 12 g‐dry wt m^?2 in 2003, 127 ± 17 g‐dry wt m^?2 in 2004 and 149 ± 23 g‐dry wt m^?2 in 2005. Total N and C sedimentation ranged from 0.49 to 0.92 g‐N m^?2 and 5.2 to 19.9 g‐C m^?2. Fe dominates the sediment chemistry and results show the elemental abundance in the order of Al > Fe > Ca > K > Mg > S > P > Na > Mn > Zn > B > Cu > Mo. A hydrologic pulsing index (HPI) could be used as an indicator for mass changes of energies with hydrologic pulsing events. Restoration of seasonally flooded bottomland forests could stimulate potentially large nutrient and Fe releases, which would eventually lead to an enhanced forest productivity and biodiversity. Copyright © 2007 John Wiley & Sons, Ltd.     

浅析《长江科学院院报》的长江特色

为分析《长江科学院院报》的长江特色,以2007年第4期至2010年第5期《长江科学院院报》刊发的论文为样本,从学科类别、论文下载频次、作者群、论文获得资助来源这4个方面,对从中国知网CNKI中国学术文献网络出版总库中挖掘的数据进行统计分析。统计分析结果表明：①刊发的论文分布于41个一级学科类别中,其中以水利水电工程类为主,占总论文篇数的54%,其次是建筑科学与工程和地球物理学,均占12%; ②作者群主要是工作在长江流域水利行业第一线的科研工作者;③统计期内, 国家自然科学基金论文中,报道健康长江问题的论文占43%。长江特色主要体现在：论文主要是由工作在长江流域水利行业第一线的科研工作者撰写的反映水利水电类科研的成果;近年来论文的内容从工程水利逐步向资源水利扩展。     

《长江科学院院报》近十年来发展述评

为了纪念长江科学院建院70周年,对《长江科学院院报》近10 a来的稿源与载文量、影响因子、作者群结构、基金论文比、学科分析、编委会作用、优质稿源、论文学术不端、新媒体融合、编辑队伍建设、取得的成绩等进行梳理与分析.结果表明:近10 a来期刊发展变化较大,来稿量和发文量分别增加了191％和41％;期刊复合被引频次和期刊影...     

关于大豆蛋白纤维开发应用的思考和建议

就大豆蛋白纤维的开发应用提出了思考和建议。积极开展大豆蛋白纤维的基础性研究工作,提供系统的典型数据,使之列入纤维标准性能手册,成为纤维家族中的标准正式成员;逐步开展大豆蛋白纤维结构与性能关系的研究,指导正确应用;根据大豆蛋白纤维的性能与特点,开发相适应的产品品种,适应最终用途。同时,还应综合考虑,分工合作,高速度完成系统开发的任务,巩固大豆蛋白纤维是唯一由中国首先开发并工业化应用而写入科技史册的里程碑。