Results 51 to 60 of about 199,558 (164)
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT MCrAlX coatings are widely used as bond coats in thermal barrier coating systems to protect turbine blades from high‐temperature oxidation. However, their oxidation resistance is often restricted by uncontrolled microstructures, surface roughness, and aggregation of reactive elements (REs). In this study, high‐repetition‐rate femtosecond laser
Wei Qian +7 more
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Zhongguo cuzhong zazhi卒中是我国面临的一项重大公共卫生挑战，其防控需要监测、评估、干预三个环节紧密衔接。当前，我国卒中防控在监测网络与指标体系构建、卒中中心与急救网络建设、高危人群筛查与医疗质量控制等方面已取得了长足的进展，但各环节之间的衔接仍存在不足，这制约了整体防控路径的效率。本文从公共卫生实践出发，系统梳理以上环节的建设现状与成效：监测体系虽然已初步建成且监测指标不断拓宽，但仍面临信息壁垒、覆盖不均衡和数据质量参差等现实挑战；评估环节已从描述性分析向过程评估拓展，但其在系统框架、本土化工具及决策转化方面仍有提升空间 ...
黄卫, 褚晓婷, 万秋萍, 虞慧婷, 杨晓明HUANG Wei, CHU Xiaoting, WAN Qiuping, YU Huiting, YANG Xiaoming
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MXene‐Based Materials: Compositional Engineering for High‐Performance Microwave Absorption
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT The rapid advancement of aerospace and electronic information technologies has imposed increasingly stringent requirements on microwave absorbing materials (MAMs), such as high absorption efficiency, lightweight, and environmental stability, making the development of advanced MAMs urgent for both civilian and national defense applications ...
Pan‐Pan Zhou +8 more
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, 2014 Infectious disease is a major global public issue and social medical problem to human health. Our country implements a policy of putting the emphasis on prevention, combining prevention with treatment to infectious disease.
Yang, Zhao-min; Shangluo Center for Disease Control and Prevention in Shanxi Province, Shangluo, Shanxi, China
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Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT The development of high‐performance electromagnetic protection materials integrating broadband absorption and effective shielding capabilities is hindered by challenges in simultaneously optimizing multiple electromagnetic properties through conventional material designs.
Changlong Du +9 more
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Haiyang yu huzhao为更好地保护和开发光唇鱼(Acrossocheilus fasciatus)资源，进行了光唇鱼卵原干细胞提取、冻存和移植研究。结果显示，光唇鱼卵原干细胞呈椭圆形，长径和短径分别为(16.52±0.87) µm、(10.66±0.87) µm。低温冻存光唇鱼卵巢时以10%的DMSO作为保护剂效果最好，从冻存卵巢中提取卵原干细胞的效率可达新鲜卵巢的42.22%±1.02%。以孵化出膜3日龄斑马鱼仔鱼为受体，将提取的光唇鱼卵原干细胞用PKH26荧光染料标记后移植入受体鱼腹腔。荧光显微镜观察显示，移植后1~5 ...
王 宏艳 +7 more
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Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Regulating negative parameters of metacomposites is mainly limited by their unclear mechanisms, which affects their practical applications in new sensing, communication, electromagnetic (EM) protection and other fields. This work proposes a dual‐functional competitive design strategy based on the waste corncob‐derived carbon/polyaniline ...
Qiuyun Yang +4 more
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, 2016 本发明涉及生物防治领域，尤其涉及一种茶皂素在防控海月水母中的应用。茶皂素在防控海月水母中的应用,所述茶皂素在制备防控海月水母抑制剂中的应用。本发明所述的茶皂素来源于山茶科的茶籽树种子、茎和叶提取得到的天然成分，在环境中易降解，符合生态安全的需要，其是一种天然的非离子型表面活性剂。其对海月水母碟状幼体和螅状幼体的毒性试验证明，茶皂素对海月水母碟状幼体和螅状幼体具有极强的杀灭毒性 ...
董志军, 孙婷婷
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Effects of organized guarding on mortality from human–elephant conflict in northeast India
Conservation Biology, Volume 40, Issue 1, February 2026.Abstract Human–elephant conflict (HEC) frequently results in human and elephant mortality, posing major social justice and conservation concerns across Asia and Africa. Although a variety of interventions have been introduced to mitigate HEC, rigorous evaluations of how they affect mortality are practically nonexistent.
Nitin Sekar +6 more
wiley +1 more source
, 2014 本发明涉及一种相变控温防晒薄膜及其制备方法。其特征在于相变控温防晒薄膜是以微胶囊复合相变材料为智能控温成分，采用氧化锌、二氧化钛、银、氧化铝等纳米颗粒作为抗紫外线材料，以PVC、PET、PE等薄膜为基体材料塑化复合而成。本发明首先将基体材料的树脂粉，塑料助剂通过高速搅拌混炼成均匀稳定的增塑糊，然后加入微胶囊复合相变材料和纳米颗粒，继续搅拌混合均匀，最后通过涂敷成形、高温固化制备出具有较好相变储能特性和较高抗紫外线性能的新型相变控温防晒薄膜，该薄膜在可见光区的透过率可达65%，在紫外光区的透过率仅为10%
徐芬 +4 more
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