Results 51 to 60 of about 3,991,776 (211)
, 1981 我们应用流体力学方法对Chandler园环内人工血栓形成处的流动情况进行了较细(?)的分析。当Chandler园环以用速度ω在铝直平面上顺时针方向旋转时,右边的下弯月面下降,左边的上弯月面下降,从而造成液面差 ...
吴望一, 钱民全
core
热带太平洋海洋叶绿素对
Haiyang yu huzhao关于热带太平洋海洋叶绿素对海表面温度(sea surface temperature, SST)年平均场和年际变率的影响，学术界存在着广泛的争议，模拟结果表现出明显的模式依赖性；且对于季节变化上叶绿素如何影响SST的关注较少。为深入研究热带太平洋叶绿素的气候效应，本文基于区域海洋模式系统(Regional Ocean Modeling System, ROMS)构建了海洋物理-生态耦合模式；通过在敏感性试验中设置不同的叶绿素浓度分布，分析了叶绿素对热带太平洋SST的年平均和季节变化的影响。结果表明 ...
张 雯哲 +5 more
doaj +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
, 1997 讨论和总结了结构塑性动力响应中的相似方法以及进行模化实验所应遵循的原则，对冲击载荷下多种结构塑性动力响应的实验研究进行了简要综述．中文核心期刊要目总览(PKU)中国科学引文数据库(CSCD)00339 ...
方竞, 赵亚溥, 余同希
core
Haiyang yu huzhao为了探究全球变暖对斜压不稳定的影响，本研究采用1°×1°的温度、盐度和流场格点数据，对1993~2022年南太平洋热带-副热带海区(south Pacific tropical-subtropical，SPTS)表层强化的Charney型斜压不稳定的长期变化趋势及其机制进行了分析。发现南太平洋热带区(south Pacific tropical，SPT)斜压不稳定的增长率表现出显著的减少趋势，每10 a减少0.12%，而南太平洋副热带区(South Pacific Subtropical，SPS ...
刘 丹丹 +3 more
doaj +1 more source
Scientists’ warning on the global destruction of rock outcrop ecosystems
Conservation Biology, EarlyView.Abstract Rock outcrops are geological formations that harbor a highly specialized biota adapted to harsh environmental conditions that differ from their surrounding landscapes. They are globally distributed, especially in old, highly weathered landscapes, and can function as habitat islands containing high levels of endemism and distinct evolutionary ...
Luiza F. A. de Paula +19 more
wiley +1 more source
Twelve principles for successful governance of community‐based coastal marine restoration
Conservation Biology, EarlyView.Abstract Global agreements, such as the Global Biodiversity Framework, call for urgent, large‐scale action to halt biodiversity loss through a whole‐of‐society approach. Community‐based restoration can play a crucial role in achieving this goal, yet there remains limited understanding of what makes these projects effective and sustainable.
Michelle M. Holian +2 more
wiley +1 more source
, 2011 生物力学是应用力学原理和方法对生物体中的力学问题进行定量研究的生物物理学分支。 生物力学的研究范围从生物整体到系统、器官(包括血液、体液、脏器、骨骼等)，从鸟飞、鱼游、鞭毛和纤毛运动到植物体液的输运等。生物力学的基础是能量守恒、动量定律、质量守恒三定律，并加上描写物性的本构方程。生物力学重点是研究与生理学、医学有关的力学问题。 生物力学依据研究对象的不同，可细分为生物流体力学、生物固体力学和运动生物力学等。 生物力学的发展简史 ...
中国科学院老科协工程力学分会
core
Psychometric framework for coexistence with large carnivores
Conservation Biology, EarlyView.Abstract Human–carnivore coexistence is essential for biodiversity conservation, yet measuring the attitudes and behaviors that support it remains methodologically challenging. We developed psychometric scales to assess willingness to coexist with carnivores and the underlying beliefs of this coexistence through an iterative expert elicitation process ...
Benjamin Ghasemi +14 more
wiley +1 more source
, 2009 在传统计算力学的研究领域,利用Fluent等软件实现连续介质流体的模拟,已有很成熟的经验及范例;同时,分子动力学模拟也在其擅长的微观结构分析及预测领域有了长足的发展。但是到目前为止,连续介质力学仍无法和分子动力学方法有机地结合起来。因此,仍无法在分子动力学模拟体系构建理想的(即速度梯度和温度可控的)剪切流场。Grattona与Delgado-Buscalioni等的研究表明,在分子动力学模拟中 ...
吕守芹, 龙勉, 霍波, 康英永
core