Results 41 to 50 of about 7,341 (126)
Zhongguo shiyan zhenduanxue, 2010 目的建立脊髓缺血再灌注损伤双向凝胶电泳图谱,对照观察蛋白质的差异表达。方法建立脊髓缺血再灌注损伤模型,获取损伤和正常脊髓的蛋白质组双向电泳荧光图谱,观察差异蛋白的不同时间点的变化规律,建立缺血再灌注24 h与正常脊髓蛋白质组的匹配差异图谱,鉴定差异蛋白。结果成功建立损伤和正常的双向电泳荧光图谱和肽质量指纹图谱,比较再灌注损伤24 h组与正常组可检测到46个蛋白差异点,鉴定出10个差异蛋白。结论损伤24 h组较其他组变化明显,与正常脊髓的蛋白质组存在明显差异。
朱本清, 杨小玉, 顾锐, 邱宾涛
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A study of identification for various wines by GC-MS(葡萄酒类别的色谱界定方法研究)
Zhejiang Daxue xuebao. Lixue ban, 2001 本文从气相色谱法分析检测葡萄酒的条件优化入手，得到具有良好分离效果的色谱柱及最佳色谱条件，用毛细管柱和GC-MS联用的方法分析了不同品牌葡萄酒的特征组分及相互之间的差别，并对白酒和黄酒酒质进行侧而对比，从而初步得出鉴别葡萄酒品质的依据.
GUOWei-qiang(郭伟强), QIFan(齐凡)
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Water electrolysis is a promising method for green hydrogen production, but slow hydrogen evolution reaction (HER) kinetics require efficient catalysts. In this study, we develop a Ni3S2/MoS2 heterostructure electrocatalyst using a work‐function‐driven electronic modulation strategy combined with a self‐sacrificial template approach.
Xinxin Zhao +11 more
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野生动物学报, 2019 利用衰减全反射红外光谱技术，对赛加羚羊等3个物种共49份相关样本进行检测、分析并计算其相关系数，结果：同支羚羊角壳不同取样部位红外光谱相关系数为96.69%—99.43%；不同羚羊角壳相同取样部位红外光谱相关系数为94.24%—99.43%；不同物种角质壳红外光谱相关系数为99.28%—99.47%；羚羊角壳与其骨质芯混合物红外光谱随角骨比例变化，骨质成分越多，其红外光谱与羚羊角壳红外光谱的相关系数越低。由此推断红外光谱因取样部位、个体及物种不同而产生差异，且个体间和取样部位差异甚至大于种间差异 ...
刘闯李超金煜
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Zhejiang Daxue xuebao. Lixue ban, 2004 细菌视紫红质是一种具有光驱动质于泵功能的跨膜蛋白，迄今为止己被当作光合作用、质子泵和七螺旋跨膜的受体模型进行研究.现代生物物理学的发展为研究细菌视紫红质的结构和功能提供了多种有效的方法和手段，目前已采用了博立叶红外光谱、共振拉曼光谱、核磁共振与实时振动光谱等多种分析方法来研究它的光电特性.细菌视紫红质具有较强的光敏感性，能产生光电信号，可进行快速的光化学反应等性质，这些特性已在众多科学领域得到应用并取得了突破性进展.另外，细菌视紫红质在光致色变、瞬态光电响应和非线性光学等性能上都具有良好的应用前景.
XUXiao-hong(徐晓红), WUMin(吴敏)
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT By adding CuO, the worm‐like amorphous phase and atomic clusters were simultaneously introduced, enabling the (Ni40Ti40Cu20)99.9O0.1 alloy micron columns to exhibit a uniform flow strain of over 40% and a strength of over 2.5 GPa during compression.
Huwen Ma +13 more
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Sodium‐ion batteries (SIBs) have emerged as promising candidates for large‐scale energy storage due to their cost‐effectiveness and resource abundance. However, challenges such as sluggish ion diffusion kinetics, structural degradation, and interfacial instability hinder their practical applications.
Yunze Wang +7 more
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Metal oxide‐based catalysts for oxygen reduction reaction (ORR) have drawn great attention in recent years. However, it remains technically challenging for the precise regulation of the overall performance due to the trade‐off effect among the activity, selectivity, and stability of electrocatalysts. Herein, a balancing strategy to control the
Haoran Ma +7 more
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四川大学学报. 自然科学版, 2007 针对麦草碱木质素水溶性差、分子质量低、难以工业利用的问题,采用Fenton试剂为氧化剂,以亚硫酸钠为磺化剂对麦草浆碱木质素进行氧化再进行磺甲基化反应,得到质量分数为33%(Wt)的氧化磺甲基化碱木质素的溶液.红外光谱(FTIR)测试表明产物中具有磺酸基的特征吸收峰.利用凝胶渗透色谱(GPC)测得其重均分子质量达到6653 g.mol-1.通过紫外吸收光谱(UV)测得其最大吸收波长在276 nm处.通过碱木质素磺化反应前后的核磁共振(13C-NMR)测得磺甲基接入碱木质素中芳环的C-5位 ...
梁文学 +3 more
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