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Zhejiang Daxue xuebao. Lixue ban, 2012 通过引进间断Galerkin有限元方法的思路，给出了 一维和二维广义神经传导方程的间断Galerkin有限元解法，并对这种数值解法进行了相应的误差分析，得到其精度为O（Δt+hk+1）；通过对数值例子及其结果的分析，验证了数值计算方法的有效性.
ZHUHuan(朱欢), SUNFang-yu(孙方裕)
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Zhejiang Daxue xuebao. Lixue ban, 2023 针对三维非牛顿流体充填问题，建立了有限元-间断有限元耦合算法。对于两相Navier-Stokes方程，基于压力增量修正格式分三步求解，分别采用二次和一次拉格朗日插值多项式求解速度和压力，以确保计算过程稳定。采用守恒型水平集（level set）方法追踪运动界面，并依据间断有限元方法求解水平集和重新初始化方程。以三维圆球剪切流动及非牛顿流体三维平板型腔充填过程为例，并与已有文献的数值和实验结果进行比较，以验证数值算法的稳定性、准确性以及流体的质量守恒性。
高普阳(GAO Puyang)
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基于控制体—迎风有限元法的变压器绕组二维流体场—温度场耦合计算方法研究
Gaoya dianqi, 2021 针对电力变压器二维流体场和温度场的耦合问题,文中采用了基于控制体有限元法和迎风有限元法的流体场—温度场耦合计算方法。该耦合方法基于三角形网格,使用控制体有限元法计算绕组油流区域的速度场,应用流线迎风有限元法求解整体场域的温度分布。在速度场计算中引入速度提升方法解决了流体场仿真时出口边界出现的回流流动问题,并在温度场计算时提出了适用于线性三角形单元的流线迎风稳定参数取值方法,从而解决了温度场仿真时的数值振荡问题。应用所提方法计算分析了油浸式变压器绕组二维模型的油流及温度分布 ...
刘刚 +5 more
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Dizhen xuebao为了充分发挥谱元法和有限差分法各自在数值模拟复杂介质中地震波传播的优点，同时避免各自缺点，本文提出了模拟地震波传播的谱元-有限差分（SEM-FDM）混合方法。该混合方法在起伏地形附近采用谱元法计算地表附近的地震波传播；在远离起伏地形的区域之下，采用有限差分法计算地震波传播；之后通过构建数据交换区实现两种方法的耦合。结果表明，本文提出的谱元-有限差分混合方法能有效地模拟任意非均匀介质中的地震波传播，具有刻画复杂地形的能力，能处理自由地表边界条件，且能适应模型内的速度间断面。通过模型试算，并与谱元法进行对比，
Changzhi Xu +6 more
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Evaluating the use of taxonomy in the IUCN Red List
Conservation Biology, EarlyView.Abstract Taxonomy defines the units that conservationists strive to preserve for future generations. However, the discovery of new species and the taxonomic revision of existing species affect conservation efforts. Despite the importance of taxonomy for a species’ conservation, there is currently no overview of how those leading species extinction risk
Stephen T. Garnett +8 more
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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
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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Semiconductor photocatalysis represents a pivotal frontier in the quest for sustainable energy and environmental remediation. Among the diverse catalytic materials, Bismuth Oxychloride (BiOCl) has emerged as a particularly promising candidate due to its unique layered structure, featuring [Bi2O2]2+ layers intertwined with halogen ions, which ...
Liu Han +5 more
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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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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
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四川大学学报. 自然科学版, 2013 Darcy-Stokes方程的统一有限元方法是研究Darcy-Stokes耦合问题的基础.尽管该方法采用等阶或低阶有限元逼近在工程计算上有较大的实际应用价值,但这类有限元组合不满足inf-sup条件,因而会造成数值求解的困难.而非协调有限元更容易满足离散的inf-sup条件,因而在计算耦合问题时比协调有限元更具吸引力.本文对Darcy-Stokes方程提出了一种等阶线性非协调稳定化有限元方法,证明了该格式是稳定的,并得到了最优误差估计.
刘程熙, 孔花, 钟纯真
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