Results 21 to 30 of about 231,408 (150)
Zhejiang Daxue xuebao. Lixue ban, 2022 为提高一维双曲守恒律方程数值求解格式的分辨率和精度，提出了一种基于加权本质非振荡（weighted essentially non-oscillatory，WENO）重构保号的四阶熵稳定格式。该格式主要包含高阶熵守恒通量和数值耗散项，通过在单元交界面处用拉格朗日多项式对熵变量进行有限差分WENO重构，证明了重构前后跳跃值满足保号性，论证了所构造格式的熵稳定性。在数值算例中，将空间半离散格式与四阶Runge-Kutta格式相结合，并将该格式与熵稳定格式进行了比较，结果表明，该格式具有四阶精度 ...
ZHENGSupei(郑素佩) +2 more
doaj +1 more source
Developmental Medicine &Child Neurology, Volume 61, Issue 3, Page E1-E35, March 2019., 2019 目的 本国际临床指南由欧洲残疾儿童学会（the European Academy of Childhood Disability，EACD）牵头制定，旨在解决发育性协调障碍（developmental coordination disorder，DCD）的定义、诊断、评估、干预以及与社会心理方面的临床应用关键问题。 方法 本指南针对五个领域的关键问题，通过文献综述和专家团队的正式讨论达成共识。为保证指南的循证基础，以“机制”、“评估”和“干预”为检索词, 对2012年更新以来提出的最新建议以及新增的“社会心理问题”和“青少年/成人”为检索词进行检索。根据牛津大学循证医学中心证据等级 (证据水平 [level of evidence, LOE]1–4) 将结果进行分类，最终转化为指南建议。并由国际 ...
Jing Hua +6 more
wiley +1 more source
, 2000 求解Navier-Stokes方程组，一直是粘性流动计算的主导途径。但在计算中，都是在一定的网格单元上进行离散，而对不同的离散单元，流动的特征并不相同。该文通过离散单元上网格雷诺数的变化分析，采用耦合离散流体理论(CDFT)差分格式，对向后台阶底部超声速流动问题进行数值模拟 ...
申义庆, 高智
core +2 more sources
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT High‐entropy oxides (HEOs) are promising for microwave absorption but suffer from a trade‐off between impedance matching and attenuation, often requiring high filling ratios (> 50 wt%). Herein, we propose a “lattice‐spin” dual‐regulation strategy by introducing giant‐radius Bi into a single‐phase HEO solid solution.
Junwei Zhang +11 more
wiley +1 more source
Biodiversity‐driven spatial conservation planning to delineate temporally stable regions
Conservation Biology, Volume 40, Issue 3, June 2026.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
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Arsenic presents a critical duality as both a hazardous environmental pollutant and an indispensable material for advanced semiconductor technologies. This study proposes an integrated reductive vacuum sublimation strategy, assisted by carbon and lead additives, to purify crude arsenic containing high oxygen (7.4%) and antimony (1326 mg kg−1).
Hongrui Xiang +6 more
wiley +1 more source
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT The development of novel oxygen electrocatalysts with cost‐effectiveness, scalability, high catalytic activity, and stability presents a significant challenge for zinc–air batteries (ZABs). The nitrogen‐rich lignin coordination network structure is synthesized through amine modification of lignin.
Ping‐Xian Feng +8 more
wiley +1 more source
, 2006 本发明涉及一种等离子体增强裂解有机废弃物的方法，包括将固态、半固态、液态或气态的有机废弃物经前处理后，在等离子体炉中高温裂解，然后将裂解气体净化后二次燃烧，或是将裂解气体二次燃烧后再进行后处理净化。本方法电能消耗少、设备投资节省、运行成本低，运行稳定，操作简单 ...
吴承康, 魏小林, 盛宏至
core +2 more sources
Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT Metal oxide semiconductor‐supported noble metal nanoparticles are common sensing materials for gas sensors. However, the large size and their tendency to migrate at high temperatures often lead to inferior sensing sensitivity and stability. Herein, a salt‐assistant strategy is developed to prepare fully‐exposed Ir clusters on SnO2 nanorods ...
Yi Jiang +7 more
wiley +1 more source
Evaluating protected areas’ coverage of threats to terrestrial biodiversity
Conservation Biology, Volume 39, Issue 6, December 2025.Abstract Protected areas (PAs) are vital for biodiversity conservation and have expanded globally. However, increasing pressures on biodiversity make it difficult to achieve conservation goals. Using threat probability maps based on the International Union for Conservation of Nature Red List and the World Database of Protected Areas, we analyzed the ...
Katherine Pulido‐Chadid +2 more
wiley +1 more source