نتایج جستجو برای: nansi lake
تعداد نتایج: 42291 فیلتر نتایج به سال:
An understanding of the annual variations in phytoplankton community freshwater lakes, and drivers responsible for these variations, is essential lake management. In this study we collected analyzed seasonal samples assessed environmental variables Nansi Lake from 2011 to 2015, order identify dynamics main each phylum. The results showed that diversity followed cycles, which were interrupted by...
Our objective is to develop a nonlinear aerodynamic and nonlinear structural interaction (NANSI) methodology as an expedient aeroelastic tool to handle continuous dynamic motion of morphing vehicles/wings throughout the flight regimes of subsonic to transonic speeds. The proposed morph vehicles for method demonstration is the Lockheed Folding wing (the Folding wing). Preliminary results on Flut...
为探究大规模调水输入背景下南四湖生态环境演变特征，采用多种非参数统计方法综合分析2010—2020年南四湖藻密度、总氮（TN）、总磷（TP）、氨氮、叶绿素a（Chl.a）、五日生化需氧量（BOD5）、高锰酸盐指数（CODMn）年际年内变化规律和影响因素.结果表明：2010—2020年南四湖上、下级湖水质综合污染指数年均值范围分别为0.759~0.945、0.719~0.926，水质总体逐渐改善，但TN单项污染指数存在超标现象，主要可能与入湖河流中高浓度氮输入有关.受南水北调东线工程运行初期与严峻旱情的影响，南四湖藻密度、TP、氨氮、Chl.a在2013—2015年发生突变，随后均呈增加趋势.南水北调东线工程的运行对南四湖藻密度的年内波动影响强烈，调水工程运行后每年10月份出现峰值，其中2016年上级湖藻密度高达520.0×104<...
研究南四湖消落带底泥有机磷赋存形态及分布特征,有利于全面揭示湖区各形态磷迁移转化规律,对南四湖富营养化防控及南水北调东线调水水质保障具有重要的科学意义。以南四湖消落带底泥为研究对象,采用改进Hedley连续分级提取法测定底泥中各形态有机磷含量,通过紫外可见分光光谱与三维荧光光谱技术表征底泥有机分子结构特征及稳定性,反映消落带有机磷结构及稳定性差异,运用Pearson相关性分析及主成分分析解析底泥各形态磷与其他理化指标的相关性。研究结果表明,南四湖消落带底泥总磷含量均值为679.90 mg/kg,其中有机磷(OP)占比20.03%~45.69%。各赋存形态有机磷含量及相对比例大小依次为:残渣态有机磷(67.58%)＞钙结合态有机磷(16.61%)＞铁/铝结合态有机磷(7.62%)＞碳酸氢钠提取态有机磷(5.97%)＞水提取态有机磷(2.22%)。南四湖消落带底泥OP含量及形态主要受内源...
Knowledge of the extent water pollution along a diversion channel is essential for ensuring security and effectiveness projects. Thus, identifying trends in quality factors which influence diverted river prerequisite to safety diversion. As an important control unit Eastern Route South North Water Diversion Project, hilly eastern region Nansi Lake Basin (ENLB) suffers excess transferred into du...
Shirley Weiss,1 Elkana Kohn,1 Daniela Dadon,1 Ben Katz,1 Maximilian Peters,1 Mario Lebendiker,2 Mickey Kosloff,3 Nansi Jo Colley,4 and Baruch Minke1 1Department of Medical Neurobiology, Institute for Medical Research Israel-Canada (IMRIC) and the Edmond and Lily Safra Center for Brain Sciences (ELSC), Faculty of Medicine, the Hebrew University, Jerusalem 91120, Israel, 2Unit for Structural Biol...
http://dx.doi.org/10.1016/j.vaccine.2017.01.042 0264-410X/ 2017 Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). ⇑ Corresponding author. E-mail address: [email protected] (T. McElrath). 1 Brighton Collaboration homepage: http://www.brightoncollaboration.org. 2 Present address: University of Washingto...
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