Results 11 to 20 of about 309,213 (196)
野生动物学报, 2008 毛发微观结构研究技术经历了光学显微技术和目前的多种显镜技术。主要应用领域涉及野外对动物种类及数量的调查、动物食性的研究、保护野生动物资源,辅助执法、毛纺业原料鉴定的研究和应用、头发养护和脱发治疗、法医物证检验等。虽然毛发微观结构在上述应用中仍存在一定的局限性,但是其重要作用是无可替代的,将来毛发的3D结构将是主要发展方向。
王利利, 彭建军, 胡诗佳
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Fenmo yejin jishu, 2022 表面改性是使材料表面获得与其基体不同微观组织的处理技术，能够有效调控材料表面的力学性能。因此，将表面改性方法应用于改善硬质合金表面的微观组织，能够有效避免均匀结构硬质合金显微结构–宏观性能的局限性，为制备高性能非均匀结构硬质合金提供技术方案。由于硬质合金表面改性研究的起步较晚且表面改性方法较多，表面改性方法的选取及其改性机理依然面临思路不清的问题。本文总结了化学表面改性梯度硬质合金的材料体系、制备机理、微观结构及力学性能，概括了物理表面改性得到的硬质合金涂层方法与功能 ...
陈健 +4 more
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Dianci bileiqi, 2021 微观结构的研究是ZnO非线性压敏电阻制造行业的最基本的研究内容之一。笔者梳理了该领域的最新研究进展。共分2个方面:1) ZnO压敏电阻晶界微观精细物理结构的研究; 2) ZnO压敏电阻晶界电子结构的研究。随着电子显微技术与其他现代发展起来的测试方法相结合,必将有力的推动ZnO非线性压敏电阻微观结构的研究发展,实现该领域的重大突破,有力地促进ZnO非线性压敏电阻制造技术的快速提升。
汤霖
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Template self-assembly of thin films on the structures of diblock copolymers(二嵌段共聚物薄膜模板化自组装)
Zhejiang Daxue xuebao. Lixue ban, 2012 用实空间自洽场理论研究了二嵌段共聚物薄膜受限于平行板中的模板化自组装情况.通过改变平行板表面场修饰的情况，给出了粗略微观结构，观察了体系微相结构的变化过程，并对所观察到的变化规律作了讨论.另一方面，固定平行板的厚度、相分离强度等参数，改变吸附表面场的大小，观察并讨论了体系微相结构的变化及其规律.结果表明，二嵌段共聚物体系的微相结构是由受限条件和表面场修饰共同所决定的，因而控制表面场修饰情况的相关参数可以得到所期望的特定高分子体系结构.
ZHOUJun-bao(周军宝) +1 more
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Assessing differences among elasmobranch nurseries to aid conservation based on a genomics framework
Conservation Biology, EarlyView.Abstract Elasmobranch nurseries often differ in environmental conditions, demographics, and use patterns. These differences affect the distribution of genetic variation among nurseries. However, conservation and management strategies often fail to account for such differences because they are difficult to characterize.
Dominic G. Swift +8 more
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Policy &Internet, Volume 18, Issue 2, June 2026.ABSTRACT In an era of proliferating but divergent data protection regimes, the European Union's rights‐based approach and China's sovereignty‐centric model have become two dominant poles of global data governance. This article examines how multinational enterprises navigate compliance under these dual systems and how that compliance is shaped through ...
Yiping Cao
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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Near‐infrared (NIR) phosphors with broadband and efficient emission are pivotal for the performance of NIR phosphor‐converted light emitting diodes (pc‐LEDs). In this study, the double perovskite phosphor La2MgTiO6:Cr3+ phosphor with broadband emission in the range of 650–950 nm was prepared.
Xu Qian +7 more
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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT To overcome the strength–ductility trade‐off in fabricated Ti‐2Al‐2.5Zr alloy tubes, we systematically investigated the microstructural evolution and mechanical behavior throughout thermomechanical processing, including hot working (forging and extrusion) and cold multi‐pass rolling.
Yanlong Xia +7 more
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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT To address the demand for high‐temperature stability, broadband strong absorption, and multifunctional integration of electromagnetic wave absorbing materials in complex service environments, lightweight molybdenum disulfide (MoS2) decorated silicon carbide (SiC) nanofiber composite aerogels with a directional layered interconnected structure ...
Zhi Song +4 more
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野生动物学报, 1994 选用非明显季节性换毛的水獭皮为实验材料，通过扫描电子显微镜观察毛的微观结构并系统比较了不同个体的相同身体部位、同一个体的不同部位以及不同生长阶段的各种针毛在微观结构上的差异性与稳定性。结果表明，水獭针毛的微观结构既有种的稳定性，也有因不同部位和不同生长阶段等的结构差异．从而提出应用毛的微观结构进行兽类分类与鉴别必须把握毛的类型、毛的生长阶段及所处的身体部位的可比性。
张伟 +4 more
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