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Zhejiang Daxue xuebao. Lixue ban, 2005 利用多元线性回归和偏最小二乘分析方法，研究分子表面静电势参数，VolSurf参数与双十四酰基磷脂酰基胆碱(DMPC)-水分配系数之间的定量结构-性质关系(QSPR)，均得到较好的结果.分子表面静电势参数分析表明化合物分子表面上负的静电势越分散，越倾向于分配在水相中；与水分子的作用越强，越有利于分配在水相中.此外，具有较大体积和偶极密度的分子倾向于分配在弱极性相中.VolSurf参数分析表明大体积的分子易于分配在DMPC中;分子表面亲水区域较大的分子则倾向于分配在水相中 ...
HUGui-xiang(胡桂香) +5 more
doaj +1 more source
Jianzhu Gangjiegou Jinzhan, 2021 为了研究复杂钢管空间节点的应力集中系数,采用有限元软件ANSYS建立了复杂钢管空间节点有限元模型。有限元模型考虑了焊缝的影响,将有限元计算结果与试验结果进行比较,二者吻合较好,从而验证了有限元模型的可靠性。对复杂钢管空间节点模型进行了参数分析,研究了各个参数对节点应力集中系数的影响。参数分析结果表明,主管径厚比γ对节点应力集中系数的影响较大;其他参数对节点应力集中系数的影响较小。对252个参数分析模型的结果进行回归分析,建立了节点各部分应力集中系数的拟合公式。拟合公式计算值与有限元计算值吻合较好 ...
梁佳俊 +3 more
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基于ANSYS Maxwell通信基站铁塔电感参数仿真研究与验证
Dianci bileiqi, 2021 为研究雷击作用下通信基站铁塔的精确电感参数,基于电磁场有限元原理,使用实际通信基站铁塔参数建立了仿真模型。根据铁塔部件连接特点,考虑不同规格和位置,对角钢塔外自感和部件间互感进行了有限元仿真分析,并对仿真结果进行了实验测试验证。得到不同规格、不同位置角钢部件的单位长度自感参数和互感参数,以及不同内部结构情况下的一段铁塔自感参数,并通过仿真进一步分析得出铁塔电感参数变化规律。有限元法与实验结果的一致性验证了有限元法的正确性。相关结论为后续通信基站铁塔的分流特性分析和耐雷水平分析提供电气参数依据 ...
赵晓雨 +4 more
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Conservation Biology, EarlyView.Abstract Constructed value of information (CVoI) is an expert elicitation decision‐analytic tool used to prioritize sources of uncertainty based on their potential to improve decision outcomes if resolved. Despite increased application of CVoI, the robustness of CVoI prioritization of sources of uncertainty relative to differences in expert elicitation
Kristin P. Davis +7 more
wiley +1 more source
Drivers of bat researchers’ intent to adopt field hygiene practices
Conservation Biology, EarlyView.Abstract Infectious disease is a growing threat to wildlife, with zoonotic transmission most likely at the human–wildlife interface. One underappreciated activity at this interface is fieldwork with wild animals, but associated risks can be mitigated through field hygiene (FH) practices, such as using personal protective equipment and other appropriate
Joanna L. Coleman +6 more
wiley +1 more source
Insights for conservation from the Ecological Knowledge Games project
Conservation Biology, EarlyView.Abstract Environmental conservation research requires robust methods for collecting large‐scale behavioral data and engaging diverse stakeholders in decision‐making processes. We (Y.P., A.B.D., and N.B.) created EcoKnowGames (Ecological Knowledge Games), a transdisciplinary project that develops knowledge games for conservation science and data ...
Yuan Pan +4 more
wiley +1 more source
Changes in the transformative potential of action proposals in Finnish Red Lists from 1986 to 2019
Conservation Biology, EarlyView.Abstract Red lists provide critical knowledge regarding biodiversity decline, especially in Finland, where broad assessments have been made regularly since the 1980s. They deliver information on the threat status of species and ecosystems, propose actions to guide conservation policy, and have the potential to spur transformative change.
Anni Arponen +4 more
wiley +1 more source
Gaoya dianqi, 2021 通过对高频绝缘心变压器进行磁路特征分析,基于电磁对偶原理和端口网络理论,提出了一种适用于绝缘心变压器的宽频等效电路模型。该模型由磁路等效电感、线圈间等效漏感和电容参数以及理想变压器构成。电感参数表征绝缘心变压器的磁场效应,电容参数表征变压器内部的电场效应。该模型适用于高频、不同匝数、绕组数的绝缘心变压器,对于某些类型的变压器也具有一定的实用意义。提出了基于端口网络理论和基于有限元分析的参数获取方法。采用有限元分析方法获取了宽频模型的所有参数,并结合电路仿真软件进行对比验证 ...
唐坤, 杨军, 叶加权, 聂岚馨
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Institutional lessons from the Nordic management model
Conservation Biology, EarlyView.Abstract To improve wildlife management outcomes, in terms of reaching management goals and increasing legitimacy, Nordic countries have developed institutional systems involving stakeholders that aim for a more inclusive and participatory model.
Jens Nilsson +2 more
wiley +1 more source
Gaoya dianqi, 2016 雷电参数的分布情况与地域、大气条件等诸多因素相关,因此,全面深入地分析相关因素对雷电参数分布的影响十分必要。文中以广东省雷电定位系统数据为基础,基于Google Earth软件截取典型样本区域进行研究。将样本区域经过处理导入Arc Map中进行雷电参数的筛选分析,利用Arc Map的投影功能,按UTM标准进行投影,得出该区域的面积,由此求出落雷密度。通过对不同的地形、地域的雷电参数统计分析,得出山地落雷密度比平原大;城市落雷密度较比乡村地区大;通过对不同月份的雷电参数统计分析,发现雷电参数的季节分布明显,
李瑞芳, 曹晓斌, 陈奎, 尹春
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