Results 11 to 20 of about 1,070 (119)
Activity Mechanism of Free Radical Scavenging of Peptides from Rye by Quantum Chemical Calculation [PDF]
To study the free radical scavenging mechanism of two types of rye antioxidant peptide, peptide R-Ⅰ and peptide R-Ⅱ, the amino acid sequences and free radical scavenging rates were determined, and the optimized geometric structure, the atomic charge ...
Lantuya WU, Meili ZHANG, Yuan FU
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Mine cable partial discharge denoising method based on multivariate variational mode decomposition and improved wavelet threshold [PDF]
The insulation state of the mine cable plays an important role in the stable operation of the mine power supply system. Partial discharge on-line monitoring is an important means of cable insulation state monitoring.
Jiyuan CAO +6 more
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Correlation Between Volatile Aromas and Microbial Communities during the Alcoholic and Acetic Acid Fermentation Process of Shanxi Aged Vinegar [PDF]
The Illumina Miseq high-throughput sequencing technology combined with gas chromatography-mass spectrometry (GC-MS) was used to analyze the microbial communities dynamic changes and volatile flavor components production during the whole fermentation ...
Nü XU +3 more
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Zhejiang Daxue xuebao. Lixue ban, 2016 利用静电纺丝和交联技术，制备了植酸(PA)修饰聚乙烯醇(PVA)纤维膜负载钯催化剂.利用扫描电子显微镜(SEM)表征了纤维膜的微观结构；采用扫描电子显微镜-能谱仪(SEM-EDS)分析了 Pd催化中心在纤维膜上的分布；采用红外光谱研究了纤维膜的化学结构.Mizoroki-Heck偶联反应结果显示，植酸的引入可以提高纤维膜催化剂的催化活性；该催化剂对不同结构的碘代芳烃和丙烯酸酯都表现出良好的催化性能；而且该催化剂至少可以重复使用4次其活性基本保持不变.
ZHONGShaofeng(钟少锋) +1 more
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Gaoya dianqi, 2011 XPLE电力电缆因其优异的机械性能和电绝缘性能得到广泛的使用,在交联电缆接头安装过程中,对交联聚乙烯主绝缘表面进行打磨会使接头交联聚乙烯—硅橡胶界面产生不同的粗糙程度,但是对存在于两个有机绝缘之间的接触面的电绝缘强度的研究很少,笔者针对交联聚乙烯电力电缆接头的交联聚乙烯和硅橡胶两绝缘界面经常出现放电光的现象,建立了电痕破坏实验平台,用不同型号的砂纸对XPLE片横向和纵向打磨制备实验样品,采用高速相机对发生在交联聚乙烯和透明硅橡胶界面上的放电光进行记录。结果表明:界面粗糙度越大 ...
陈新岗 +4 more
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Research Progress on Hydrated Salt-Based Inorganic Composite Phase Change Materials and Their Applications in Battery Thermal Management [PDF]
ObjectivesPhase change heat storage technology is one of the most concerned energy storage and management techniques in recent years, which is of great significance to realize the comprehensive gradient utilization of energy and improve the efficiency of
AN Zhoujian +5 more
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Gaoya dianqi, 1999 分析了交联聚乙烯绝缘电缆在国内外的发展趋势,指出研究这种电缆绝缘在线检测的必要性,并阐述了国内外交联聚乙烯绝缘电缆在线监测的几种方法.
罗俊华, 马翠姣, 邱毓昌
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Studies of Inhibitory Effects of p-Coumaric Acid, Kojic Acid and Chlorogenic Acid on Different Forms of Polyphenol Oxidase from Apple [PDF]
Apple often contains two forms of polyphenol oxidase (PPO), including membrane-bound polyphenol oxidase (mPPO) and soluble polyphenol oxidase (sPPO). These two forms differ in their enzymatic properties and structural characteristics. In this study, sPPO
Junjie YI +5 more
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自由基捕捉剂结构对
Fushe yanjiu yu fushe gongyi xuebao探究了N，N-二仲丁基对苯二胺（44PD）、特丁基对苯二酚（TBHQ）、二硫化二异丙基黄原酸酯（DIP）三类自由基捕捉剂对γ射线辐照作用下乙烯-醋酸乙烯共聚物（EVA）结构演化与性能变化行为的影响。热重分析（TGA）结果表明，三类自由基捕捉剂可抑制较高吸收剂量下EVA中聚乙烯链段的裂解。凝胶含量及应力松弛测试结果表明，三类自由基捕捉剂均可抑制EVA内部交联结构的构筑，其中，胺类抗氧剂44PD的抑制效果相对不明显，但吸收剂量较高时，含自由基捕捉剂的EVA，其交联结构较为完善，应力松弛速率较低 ...
胡 心芸 +6 more
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Gaoya dianqi, 2011 针对某GIS变电站110 kV交联聚乙烯电缆出线A相挂有一相线路TV,该TV无法与带电体脱开进行交联聚乙烯电缆耐压试验且试验装置容量不够的情况进行了理论分析,提出并论证了一种切实可行的解决办法——升高频率进行串联谐振耐压,该法有效解决了此类由设备特殊结构造成的无法试验的问题。
全朝春 +6 more
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