全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
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作者:范宇 , 白净 , 李星
来源:[J].国外医学.生物医学工程分册, 1995, (01), pp.12-20CNKI
摘要:本文介绍了组织弹性定征的两种主要方法:多普勒和互相关技术。前者继承了超声多普勒血流技术的基本概念和方法,采用外部振动源,利用多普勒效应来检测组织的弹性特征;后者则从时域入手,既可用...
被引频次:3下载频次:58
作者:李星 , 景紹红 ...
来源:[J].Hans Journal of Food and Nutrition Science, 2018, Vol.07 (01), pp.35-41汉斯出版社
摘要:Spiced geese were used as the experimental materials to research the effect of microwave sterilization on meat quality. After vacuum packing, then microwave sterilization was under the condition of 670 W, 2450 MHz, 9 min, 94˚C. The results of sensory evaluation, electronic n...
作者:王军祥 , 李星 , 马英喆
来源:[J].Material Sciences, 2018, Vol.08 (10), pp.980-987汉斯出版社
摘要:The effect of C and Mn elements on properties of BTW steel was studied in this paper. Microstruc-tures and mechanical properties of medium manganese steel were analyzed by means of metallo-graphic microscope, tensile test, impact test, friction and wear test machines. Experimenta...
作者:... 张一帆 , 李星 , 黄俊山
来源:[J].Traditional Chinese Medicine, 2018, Vol.07 (06), pp.357-363汉斯出版社
摘要:Objective: To observe the effects of different types of tranquilizers, such as Tuber fleece flower stem, Acacia, Keel, and Oysters on neurotransmitters in insomnia rats, and to explore the differ-ences in their pharmacological mechanisms for treating insomnia. Methods: A rat...
作者:李星 , 张瑜 ...
来源:[J].Traditional Chinese Medicine, 2019, Vol.08 (02), pp.74-80汉斯出版社
摘要:Objective: To observe the correlation between shugan anshen traditional Chinese medicine compound songyu anshen prescription and dopamine receptor in preventing insomnia. Methods: Insomnia model of rat was used. After successful modeling, SYF, dopamine receptor agonist pergolide,...
作者:李星
来源:[J].电信技术, 1994, (03), pp.7-9CNKI
摘要:多媒体通信应用实例清华大学电子工程系李星三、善于局域网(LAN)的多媒体通信系统局域网是目前应用非常广泛的近距离通信网络,它的传输速率一般为10Mb/s。局域网使用分组交换技术,最...
被引频次:1下载频次:22
作者:李星
来源:[J].电信技术, 1994, (04), pp.13-15CNKI
摘要:多媒体通信应用实例(3)清华大学电子工程系李星五、宽带多媒体通信系统和多媒体通信业务毫无疑问,真正充分发挥多媒体通信的作用需要高速通信网。目前,人们已经开始了宽带综合业务数字网的实...
被引频次:-下载频次:27
作者:李星 , 齐俊明 , 张振民
来源:[J].中国卫生监督杂志, 1996, (06), pp.303-304CNKI
摘要:从卫生监督人员形象(包括职业道德、仪容仪表、语言修养、卫生法规和专业知识、表情、行为等)对卫生监督工作权威性的影响,说明加强卫生监督人员形象建设的必要性,并就抓好卫生监督人员形象建...
被引频次:-下载频次:7
作者:李星 , 龙永义
来源:[J].International Journal of Mechanics Research, 2012, Vol.01 (01), pp.1-7汉斯出版社
摘要:摘 要:本文探讨在高电冲击载荷作用下,压电介质中裂纹尖端的热效应问题的奇异积分方程方法,通过引入热源功率,利用绝热近似,由简化的热传导方程得到了裂纹尖端在电冲击作用下短时间范围的温...
作者:李星 , 庞明军
来源:[J].Advances in Applied Mathematics, 2012, Vol.01 (02), pp.49-58汉斯出版社
摘要:Contact problems are common physical phenomena in the real life and engineering practices due to the inevitability of contact. At the end of the contact area, the phenomenon of stress concentration may happen, which can significantly reduce the service life of mechanical structur...

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