排序方式: 共有42条查询结果,搜索用时 15 毫秒
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居世界首跨的明石海峡大桥的加劲梁曾拟采用加劲钢箱梁形式,但经方案比选后,最终选用了钢桁梁形式。介绍悬索桥加劲梁的结构效果,加劲箱梁及加劲桁梁各自的结构性能、设计及其架设方法。 相似文献
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Zhang Jun Deng Denghao Luo Jinyan Wang Kangmin Zhang Shasha Gastroenterology Section of Internal Medicine Second Affiliated Hospital Xi′an Medical University Xi′an 《西安交通大学学报(英文版)》1999,(2)
In1985,DerkneckmadethecloneofTGFβ1fromthegenebankofhuman'splacentaandcDNAoffibromasarcomacellline.PreviousstudieshaveshowedthatTGFβ1existsinmultiplenormalsomaticcells,hematopoieticcellsandembryoniccellsofhumanbeingorothermammals.Cellsandtumortissuewh… 相似文献
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Thromboembolicdiseasesareoneofthemaincausesofmortalityinhuman.Manyfactorscontributetotheproductionanddevelopmentofthesediseases,includinghyperaggregationofplatelets,activationofbloodcoagulation,endothelialinjuryandthedisorderofbloodflowetc〔1〕.Platele… 相似文献
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Hui Liu Juan Su Xu Liang Xi Zhang Ya-Jun He Hai-Qiang Huan Ji Ye Wei-Dong Zhang 《西安交通大学学报(英文版)》2011,1(1)
A novel and sensitive HPLC-UV method has been developed for the simultaneous determination of twelve major compounds in Longdan Xiegan Pill.The chemical profile of the twelve compounds,including geniposidic acid(1),geniposide(2),gentiopicroside(3),liquiri 相似文献
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Wang Jianli Zhang Wanggang Wang Xiangling Cao Xingmei Chen YinxiaDepartment of Hematology Second Affiliated Hospital of Xi′an Medical University Xi′an 《西安交通大学学报(英文版)》1999,(2)
Multiplemyeloma(MM)isamalignantplasmocytomaoccurresinhematopoieticsystem,whichetiologyandpathogenesisarestillunclear.Epstein-Barrvirus(EBV)isatumorigenicDNAherpesvirus,whichisdefinitelyassociatedwithtwomalignantdisorders,Burkitt'slymphomaandnasophary… 相似文献
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针对轨道交通车站短时进站客流的不均衡性、高度非线性和时变性特点,结合逻辑推理能力强的模糊技术与自学习能力强的神经网络,提出一种基于广义动态模糊神经网络(GD-FNN)的短时进站量预测方法。以北京轨道交通各车站的进站客流量数据为例,分析轨道交通车站的进站客流特征,确定影响短时客流分布的主要因素;然后采用GD-FNN方法构建车站短时进站量的预测模型,实现北京轨道交通系统若干车站进站量的预测,预测结果表明,该方法与传统的神经网络相比,预测效果更准确(最大相对误差小于8%),稳定性好。 相似文献
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Lan Yanping Cui Changzong Department of Cardiology First Affiliated Hospital Xi′an Medical University Xi′an 《西安交通大学学报(英文版)》1999,(2)
ClinicalandexperimentaldatahaveshownthatprolongationoftheQTintervalmeasuredfromthestandard12-leadECGisriskfactorforventriculararrhythmiaandsuddendeath〔1〕.ElectrophsiologicstudiessuggestthatQTintervalprolongationisassociatedwithincreasedregionalhetero… 相似文献