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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT The development of lightweight, high‐attenuation, and broadband carbon‐based electromagnetic wave absorbers is hindered by the intrinsic trade‐off between impedance matching and dielectric dissipation. Herein, we report a facile and scalable synthesis of N‐doped lignin‐derived interconnected porous carbon (Nx‐LIPC) via hydrogen‐bond self ...
Bin‐Peng Zhang +7 more
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解不可压缩流体力学问题的降阶法Ⅲ、二阶有限元格式 [PDF]
, 1988 在本系列文章里,我们提出一种新的求解不可压缩流体力学问题的有限元方法——降阶法。这种算法是通过寻找零散度空间V~h的一组简单的基函数从而对原来的混合有限元问题降阶来实现的。本文对于一人类解Ω(?)R~2上的NavierStokes方程的有限元格式(包括一些二阶格式和[4]中讨论的一阶格式)给出了空间V~h的基函数 ...
于欣
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Jianzhu Gangjiegou Jinzhan, 2010 <正>高层建筑连续性倒塌分析的三维有限元仿真Feng Fu（英国）采用通用有限元软件ABAQUS建立了一个20层建筑的三维有限元模型并对该建筑进行了连续性倒塌分析 ...
王卫永
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Structural Modulation of Magnetic Softness in Fe‐Based Amorphous Alloys via Pulse Current Training
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Fe‐based amorphous alloys, despite their intrinsically low magnetocrystalline anisotropy, suffer from quasi‐dislocation dipoles and localized stress fields that impede domain‐wall motion and increase coercivity. Here, we introduce pulse current training (PCT) as an energy‐efficient technique to overcome these limitations in a Fe76Si9B10P5 ...
Shumin Ye +13 more
wiley +1 more source
, 2007 介绍一种能够模拟岩石材料破坏过程的有限元方法,该方法引入单元分裂和界面分离技术描述破坏引起的材料几何拓扑结构变化,采用接触单元表征破坏界面,借助动态松弛方法完成求解。该有限元方法主要针对岩石材料的张拉和剪切两种破坏形式 ...
丁桦, 邱峰
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Reissner-Mindlin板模型的Locking-free有限元(英文)
四川大学学报. 自然科学版, 2001 利用Reissner－Mindlin板问题的组合杂交有限元方法，提出了一类Locking－free有限元.
胡兵
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Effects of political identity activation and inaccurate metaperceptions on attitudes toward wolves
Conservation Biology, Volume 40, Issue 3, June 2026.Abstract Polarization between groups can undermine durable conservation outcomes. Activating group identities (i.e., an individual's sense of self derived from membership in a group) can exacerbate differences, especially when people hold inaccurate perceptions of their peers and rivals.
Alexander L. Metcalf, Justin W. Angle
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四川大学学报. 自然科学版, 2014 论文研究了凸二次最优控制问题的半离散有限元法,其中状态和对偶状态量分别用标准线性有限元离散,而控制量用分段常数逼近.作者证明了控制量的适当插值和控制量的有限元逼近具有h2阶超收敛性性质.
陈铁军, 肖建新, 邓跃龙
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Zhongguo youzhi为提高单螺旋低温榨油机的加工效率、原料利用率以及缩短设计周期，对花生仁的压榨特性进行研究，建立了压榨压力与饼粕残油率的数学模型，考察了压榨温度和花生仁水分含量对压榨效果的影响，设计了一种适配花生特性的高效单螺杆低温压榨结构，对其进行仿真分析，并验证了压榨效果。结果表明：所建立的压榨压力与饼粕残油率的数学模型的决定系数达0.991 4；在压榨温度60 ℃、花生仁水分含量7.0%条件下压榨效果最佳；新型花生低温压榨单螺杆结构采用5段螺旋输送单元与3段锥形增压单元相结合的螺杆构型，并在锥形段设有防堵导流凸起 ...
魏冬雪1,2，周万猛3，秦琛强1,2，于晏同1,2，张法楷1,2，卢黎明1,2，闫雪峰1,2，周思源1,2，胡淑珍1,2WEI Dongxue1,2，ZHOU Wanmeng3,QIN Chenqiang1,2，YU Yantong1,2，ZHANG Fakai1,2，LU Liming1,2，YAN Xuefeng1,2,ZHOU Siyuan1,2,HU Shuzhen1,2
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