Results 11 to 20 of about 4,127 (127)
Representation of obligate groundwater‐dwelling copepod diversity in European protected areas
Conservation Biology, EarlyView.Abstract Groundwaters sustain diverse surface ecosystems and are populated by metazoan species, mostly invertebrates, that provide fundamental ecological functions and are often of prominent conservation value due to narrow endemism and high phylogenetic rarity.
Francesco Cerasoli +7 more
wiley +1 more source
Biodiversity‐driven spatial conservation planning to delineate temporally stable regions
Conservation Biology, EarlyView.Abstract The accelerating loss of biodiversity underscores the critical need for effective conservation strategies, particularly in the face of climate change and anthropogenic pressures. We devised a conservation planning framework that adopts a temporal stacking approach to species distribution models and landscape connectivity analyses. These models
Mattia Iannella +5 more
wiley +1 more source
Mosaic Image Generation Method Based on Geodesic Voronoi Diagram [PDF]
, 2014 马赛克是一种非真实感的渲染效果，源图像被不同颜色、形状的嵌片组合而成。本文提出一种基于测地距离度量下的保持源图像特征信息的自适应马赛克图像生成方法。我们方法结合了测地距离度量和重心Voronoi图方法。测地距离度量是由源图像的特征曲线定义，特征曲线是利用特征算子从源图像中自动提取得到。Voronoi图在该测地距离度量下使用快速行进算法生成，这样可以保证生成的Voronoi图的Voronoi多边形边界与特征曲线重合，从而保持输入源图像的特征信息。除了测地距离度量外我们还定义了马赛克图像的密度函数 ...
欧阳永昇
core
Research in Application of Volumetric Topological Analysis in Osteoporosis Pathology Analysis [PDF]
, 2011 骨质疏松症作为一个世界性的健康问题，已引起了越来越多的关注。骨质疏松症患者的骨骼不仅骨量减少，骨微结构也发生了改变，导致骨的脆性增高及骨折危险性增加。世界卫生组织（WHO）预测，在今后的50年内，骨质疏松性骨折的发生人数也将继续增多，其中的一半发生在亚洲。医学上用骨矿密度作为检查标准，但是近几年来逐渐认识到了骨小梁微结构对骨质疏松的影响，随着CT技术的发展，进一步推动了这一方面的研究。 骨小梁（trabecularbone，简称TB）是由相互连接的板状和杆状组成的一个复杂伪随机网络，通过骨吸收（破骨细胞）
吴建贵
core
Elephant barrier behaviors in response to conflict mitigation fences
Conservation Biology, Volume 40, Issue 2, April 2026.Abstract Human–wildlife conflict is a major conservation issue, particularly in lower income countries, where it affects marginalized people and leads to the extirpation of threatened species. Managers increasingly use fences to reduce this conflict but lack evidence on the effectiveness of these barriers, especially on whether this reduces the number ...
Dominique Gonçalves +2 more
wiley +1 more source
Dizhen xuebao, 2018 基于2007—2015年间我国数字强震动观测台网记录到的MW5.0—6.6地震事件中的强震动记录，综合考虑震源、传播路径及场地的影响，采用随机效应回归分析方法建立了适用于中国大陆地区的地震动显著持时预测方程，并与其它地区的预测方程进行了对比分析。结果显示：显著持时随震级和距离的增大而增大，硬土场地的地震动持时整体上略小于软土场地，而且本文给出的地震动显著持时随预测变量的变化趋势与其它研究地区具有一定的相似性。
Peibin Xu, Ruizhi Wen
doaj +1 more source
Study on Key Technologies of Human Motion Synthesis [PDF]
, 2012 随着计算机图形学技术及硬件设备的快速发展，计算机动画技术成为一种重要的数字媒体技术，并已逐渐渗入到人们生活的各个领域。近年来，随着光学运动捕捉设备的普及和运动捕捉技术的发展并逐步成熟，基于运动捕捉的计算机动画技术成为三维计算机动画的主流方法，同时不断产生大规模海量的三维人体运动数据库。高效地复用现有的运动数据库能提高计算机动画制作的效率，降低制作成本。运动合成技术是一种常用的复用技术，它能在已有的运动数据基础上合成满足用户需求的动作，对计算机动画制作具有十分重要的意义 ...
林玲
core
Integrative Conservation, Volume 5, Issue 1, Page 137-149, March 2026.Pometia pinnata demonstrated life‐stage‐specific genetic responses to landscape features, with asymmetric gene flow patterns and population recovery following historical bottlenecks, revealing complex topographic and demographic influences on forest genetic structure.
Madhuparna Chatterjee +5 more
wiley +1 more source
Wildlife Letters, Volume 4, Issue 1, Page 23-31, March 2026.American badgers, a medium‐sized carnivore occurring in much of North America, are important predators in prairie landscapes though our understanding of their habitat use requirements in these areas is unclear. We used a multi‐scale approach to understand American badger habitat use at both local and landscape scales.
Colleen W. Piper +5 more
wiley +1 more source
Dizhen xuebao通渭地震台因受宝兰高铁运行的显著干扰（距最近电极仅600 m），其地表地电阻率观测数据可靠性下降，遂于 2021 年建成井下地电阻率观测系统，以保障观测的连续性。应用现有的电位解析表达式及程序，基于通渭台电测深反演数据，对通渭台井下地电阻率观测影响系数随埋深和供电极距的变化进行了分析。结果表明：① 通渭台在供电极距一定时，各层影响系数与电极埋深之间呈现出复杂的变化关系；② 在电极埋深固定时，浅层介质的影响系数通常先上升后下降，深部介质的影响系数随着极距的增加而上升。在此基础上，以通渭台具体观测参数 ...
Jie Zhao +8 more
doaj +1 more source