Results 31 to 40 of about 1,282,683 (98)
Structured machine learning modeling to support conservation of deep‐sea benthic biodiversity
Conservation Biology, Volume 40, Issue 4, August 2026.Abstract Biodiversity monitoring programs need to deliver accurate, timely, and actionable predictions. To establish a predictive monitoring program for deep‐sea benthos of the Santos Basin, Brazil, we developed a two‐stage structured model that allowed comparison of biodiversity predictions obtained from environmental simulations (2M‐Sim).
Gustavo Fonseca +23 more
wiley +1 more source
, 2007 研究了L-α-磷脂酰乙醇胺分子(PE)与去污剂分子摩尔数之比Rm(P)/m(D)对磷脂分子在固体硅片表面自组装成膜的影响。通过椭偏技术测定磷脂膜层厚度,结合磷脂膜层表面疏水角的变化、磷脂分子头部亲水、尾部疏水的性质及与蛋白质分子的作用条件,得到:随着Rm(P)/m(D)在PE溶液中的增大,PE膜层在硅基片上的存在形式由单层向双层逐渐过渡。当对硝基苯酯基-聚乙二醇-(1,2-双油酰基-3-甘油磷脂乙醇胺)分子(pNP-PEG-DOPE)与已固定的PE分子反应时,分子间形成双层膜的机制也从pNP-PEG ...
靳刚, 陈艳艳, 刘妍
core +2 more sources
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Biodegradable zinc (Zn)‐based materials are considered promising candidates for orthopedic applications because of their favorable mechanical properties, controllable biodegradability, and good biosafety profiles. However, their clinical translation is limited by early‐stage corrosion‐induced cytotoxicity and inflammation, as well as ...
Jinlong Mao +9 more
wiley +1 more source
, 1995 对超高速冲击铝双层板的熔化效应,进行了实验研究和数值模拟,用扫描电镜观察后板的弹坑发现:当弹丸碰撞速度超过5km/s时,后板出现熔坑;随着弹丸碰撞速度的增加,后板熔坑数目亦随之增加,碎片云对后板的破坏明显减弱.数值模拟表明,击波加热和塑性功加热是熔化的两种机制 ...
郑哲敏 +3 more
core +2 more sources
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT In electrocatalysis, traditional single‐atom catalysts (SACs) face challenges in achieving coordinated control of reaction pathways due to limitations such as single local energy levels and carrier recombination. By introducing an additional defect structure, it is possible to break the electronic structure symmetry, thereby activating SACs ...
Juanjuan Huo +8 more
wiley +1 more source
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Silicon–carbon composite anodes offer exceptionally high energy density, but their practical application is severely constrained by the structural instability and continuous evolution of the solid electrolyte interphase (SEI). In this work, moving beyond conventional LiF‐enrichment strategies, we propose a directional regulation approach based
Yao Liang +11 more
wiley +1 more source
Guangtongxin yanjiu, 2020 针对目前位移传感器体积较大和分辨率较低的问题,文章设计了一种面内位移检测的双层纳米光栅结构,用耦合波理论阐述光栅的衍射性质,使用Gsolver软件对双层光栅的上下两层光栅间隙、光栅周期、光栅占空比以及入射波长进行了优化仿真分析,研究在各参数下,双层纳米光栅面内位移对衍射效率的影响,最终得到一组对位移敏感的光栅结构。仿真结果表明,当两层光栅间隔为200 nm、光栅厚度为390 nm、光栅周期为800 nm以及入射光的波长为850 nm时,双层光栅的光透射特性较好 ...
王晓慧
doaj
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT The surging demand for high‐performance NdFeB magnets has made it essential to achieve ultrahigh coercivity while minimizing the consumption of heavy rare earths. To tackle this challenge, this study proposes a Dy/Tb bilayer grain boundary diffusion strategy and systematically investigates the co‐diffusion behavior of Dy and Tb.
Rui Chang +7 more
wiley +1 more source
, 2001 本文利用有限元方法和优化理论，对含FGM(Functionally Graded Materials)层的热喷涂构件中的残余应力进行了数值分析，并获得了FGM内各组份体积含量分布的最优化形式和参数p。同时，我们也研究了喷涂构件的几何形状、涂层及基底的材料性能对于p的影响规律。在本文的分析中，考虑了基底材料和FGM的塑性变形以及其性能对于温度的依赖 ...
张榕京, 黄晨光, 段祝平
core +2 more sources
Dianci bileiqi, 2021 随着土地资源的紧缺,往往需要在有限的土地资源条件下选取合适的土壤模型并设计相应的符合参数要求的接地网方案。建立了垂直分层的土壤模型,用以模拟在山脚、江（河）两岸等的情况下的土壤电阻率分布。运用CDEGS仿真软件计算接地网的接地电阻、接触电压及跨步电压等参数,通过增设双层地网、增加垂直或倾斜接地体及改变网格密度等方式研究更加优越且经济的接地网优化方案。研究结果表明:对于垂直分层土壤下的接地网,可在低土壤电阻率侧错位的铺设双层接地网;而在高土壤电阻率侧铺设双层接地网对降低接地电阻的作用较小 ...
王继来
doaj