Results 151 to 160 of about 1,435,259 (250)
[Advances in ribosome biogenesis and targeted therapies for diffuse large B-cell lymphomas]. [PDF]
Zhonghua Xue Ye Xue Za ZhiYue MX, Zhao WL, Wang L.
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, 2009 一种组成可控的钯合金复合膜制备方法，通过对化学镀沉积金属钯和第二组份过程中生成的气体进行定量，准确控制制备过程中金属钯及其第二组份的沉积量，从而组成可控地制备钯合金复合膜。通过本发明的制备方法，能够准确方便地控制钯合金膜的组成，获得组成较佳的钯合金复合膜，从而具有高的透氢性能。利用本方法制备的高性能钯合金复合膜在氢气分离和涉及氢气的反应中具有广阔的应用前景，特别是在电子行业、加氢站和分散电站小规模制氢氢气分离方面，将比传统变压吸附分离(PSA) 技术具有明显的竞争优势 ...
徐恒泳 +2 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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[Determination of 65 synthetic cannabinoids in whole blood by QuEChERS-ultra performance liquid chromatography- mass spectrometry]. [PDF]
Se PuXi Z +6 more
europepmc +1 more source
[Deep learning method for magnetic resonance imaging fluid-attenuated inversion recovery image synthesis]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2023 Zhou J, Guo H, Chen H.
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β-羰基膦氧化合物和α-磺酰氧基酮的合成及EGFR/HER-2双靶点抑制剂的设计，合成和生物活性研究
, 2017 α-杂原子取代酮是一类在有机合成中有广泛用途的化合物，用于亲核取代反应，Horner–Wadsworth–Emmons反应，光反应等，而且还参与构建各种杂环化合物。其中，β-羰基膦氧化合物和α-磺酰氧基酮是两类重要的有机合成中间体。本课题组在前期工作的基础上，开发了在温和条件下高效合成β-羰基膦氧化合物和α-磺酰氧基酮的新方法。本论文第一部分综述了烯烃和炔烃经双官能化策略构建α-杂原子取代酮的研究进展。第二部分介绍了一种空气参与的铜催化烯烃合成β-羰基膦氧化合物的新方法。β-羰基膦氧化合物是构建α,β ...
张智杰
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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Improving catalytic activity for volatile organic compounds (VOCs) oxidation and enhancing water‐tolerance stability remain challenging in practical applications. Herein, a composite catalyst integrating Pt/CoOx‐NiOx mesoporous nanorods (MNRs) with a phenyltriethoxysilane (PhTES)‐modified surface was fabricated via a facile route for toluene ...
Jiaqin He +13 more
wiley +1 more source
[Role of hyaluronic acid synthases in female infertility-related diseases]. [PDF]
Zhong Nan Da Xue Xue Bao Yi Xue BanLiu L +5 more
europepmc +1 more source
, 2006 本发明涉及燃料电池关键材料的合成技术，具体地说是一种燃料电池用复合质子交换膜的合成方法，步骤如下：多孔聚四氟乙烯膜经过表面改性以减小水接触角，增强润湿性，在与其润湿性良好的中沸点溶剂或低沸点溶剂中浸渍备用；将高分子固体电解质用高沸点溶剂密闭加热溶解后再加入中沸点、低沸点溶剂制成溶液；在多孔聚四氟乙烯膜上浇铸，加热挥发溶剂后进行结晶热处理即合成了复合质子交换膜。膜厚度可控在5～150μm之间。本发明合成了高性能燃料电池用复合质子交换膜，具有高分子固体电解质与聚四氟乙烯相容性良好、机械强度高、致密性良好 ...
张 宇 +4 more
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Atom Probe Tomography‐Based Analysis of Residual Trace Elements in Advanced Metallic Materials
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Residual trace elements inherited from raw materials strongly influence the mechanical and environmental performance of advanced metallic alloys and recycling materials due to preferable boundary/interface segregation and resultant embrittlement effects, yet their parts per million level concentrations pose significant challenges to ...
Congcong Li +17 more
wiley +1 more source