Results 71 to 80 of about 6,439 (163)
Research Progress in Detection and Elimination of Anti-nutritional Factors in Pulses [PDF]
In addition to containing rich nutrients and biologically active substances, the pulses contain phytic acid, saponins, trypsin inhibitors, lectins and other anti-nutritional factors, which have multiple types and entail complex detection processes, with ...
Changqing RUAN +3 more
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Research Progress of Non-destructive Testing Technology in Beef Quality [PDF]
Beef is rich in nutrients and is one of the favored meats among consumers. Market price, consumer willingness to buy and satisfaction are affected by the quality of beef, so it is important to test the quality of beef.
Hao LIU +8 more
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Gaoya dianqi, 1993 利用喷口电弧的微分—积分模型对N2气流中电弧的动态特性和稳态特性进行了计算,并与SF6电弧的特性进行了对比分析。从理论上对这两种介质中电弧熄灭的机理和差异进行了讨论。
张交锁, 王其平
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Recent Advances in Emerging Sterilization and Quality Control Techniques for Liquid Eggs [PDF]
While Hen’s egg is nutritious and has versatile functional properties, liquid eggs are gradually becoming an alternative to shelled eggs due to the fragility of shelled eggs, its difficulty of transportation and storage, and safety problems such as ...
WANG Xiaotuo, LI Shugang, CHEN Yuhang, ZHANG Jingshou, XIAO Hongwei
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Gaoya dianqi, 2015 过电压对于油纸绝缘的性能影响的研究目前主要集中在油纸绝缘在冲击电压作用下的U-N特性方面,而对于油纸绝缘在冲击电压作用下的物理化学特性的变化方面的研究比较少,并且研究主要集中在雷电冲击方面,对于操作冲击电压的影响规律的研究却比较少。因此,文中对操作冲击电压累积作用下油纸绝缘的电气特性和机械性能变化进行了研究,研究发现:在承受操作过电压的累积冲击之后,油纸绝缘的直流体积电导率呈上升趋势;油纸绝缘的介电特性和交流电导率在10-2100Hz频域内呈上升趋势,而在100107Hz的范围内基本保持不变 ...
司马文霞 +4 more
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Research Progress in Radiation Chemistry of Organic Porous Materials [PDF]
Organic porous materials, particularly metal organic frameworks(MOF) and covalent organic frameworks(COF), have emerged as a revolutionary class of materials with immense potential across a wide range of scientific and industrial applications.
Fan JIANG +6 more
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Gaoya dianqi, 2019 采用氮气或干燥空气替代SF6作为绝缘介质是目前环保型柜式气体绝缘金属封闭开关设备（C-GIS）的研究热点。要保证气箱内部结构紧凑、小型化的特征,需要充分掌握气体介质的绝缘特性,寻找电场均匀度对气体高压击穿特性的影响规律。文中研究了在0.10、0.15 MPa压力下,不同电极形式、电极间隙下的两种绝缘气体的正极性雷电冲击耐压特性。数据对比表明:干燥空气相比氮气具有更高的正极性雷电冲击电压击穿特性。同时总结了最大击穿场强Emax与电场均匀度刀之间的关系,得到C-GIS绝缘结构设计方面的关键判据。
李红梅 +5 more
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Gaoya dianqi, 2021 相变冷却技术逐渐成为高压功率电力电子器件散热瓶颈的解决方案。但在高压应用场景中,由气泡引发的绝缘问题需要重点关注。针对相变冷却的沸腾特征,掌握制冷剂液态、气态以及两相态的绝缘特性是开展相变冷却技术绝缘分析的基础,而现有研究尚没有系统性的制冷剂多相态绝缘特性测试方法。因此,文中研制了用于制冷剂多种相态工况的绝缘实验装置,首次实现了低沸点液体蒸汽的介电强度测试,进而提出了制冷剂蒸汽及两相态环境的击穿实验方案。利用FC-72制冷剂,对其液态、气态及两相态展开了系统性的击穿特性研究,获得了FC ...
莫申扬 +5 more
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[Comparison of dielectric properties of normal human esophagus and esophageal cancer using an open-ended coaxial probe]. [PDF]
Nan Fang Yi Ke Da Xue Xue Bao, 2021 Huang Q +6 more
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Preparation and properties of CCTO ceramics. [PDF]
, 2007 Yuan, Wenxiang = CCTO陶瓷材料的制备和性质研究 / 苑文香.Thesis (M.Phil.)--Chinese University of Hong Kong, 2007.Includes bibliographical references (leaves 63-67).Text in English; abstracts in English and Chinese.Yuan, Wenxiang = CCTO tao ci cai liao de zhi bei he xing ...
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