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[会议论文] 作者:Dongmei Cha,Zhaorui Zeng,Dong'e Cheng,Mingming Liu, 来源:DaLian Internationall Symposia and Exhibition on Chromatogra 年份:2007
As a kind of new sample preparation technique, solid-phase microextraction (SPME) possesses several advantages and has been widely used for the extraction of volatile and semi-volatile analytes in var...
[会议论文] 作者:Dongmei Cha,Zhaorui Zeng,Dong'e Cheng,Mingming Liu, 来源:DaLian Internationall Symposia and Exhibition on Chromatogra 年份:2007
With the development of analytical instrument and analytical techniques, sample preparation has become an important factor which determines the accuracy, precision and time of analysis.As a kind of ne...
[期刊论文] 作者:GUO Dongmei WANG Ming, 来源:中国机械工程学报 年份:2007
一新自我混合基于外部阶段调整微干涉仪被介绍。自我混合的干扰由在激光前面从象 amirror 一样目标反映光发生在一根激光二极管(LD ) 。横梁的正弦曲线阶段调整被 anelectro...
[期刊论文] 作者:WANG Dongmei,WANG Zhiwei, 来源:中国机械工程学报 年份:2007
纸蜂房的压缩行为借助于试验性的分析被学习。实验结果显示出怎么六角形的纸蜂房的几何学方面例如蜂房房间墙的纸蜂房,厚度和长度的高度,六角形的蜂房的绘画比率,影响纸蜂房的压......
[期刊论文] 作者:Li Hengyuan Shi Dongmei, 来源:国际交流:英文版 年份:2007
I.Over the past decade and more,countries around the world have gradually come to the consensus on global warming:the Earth is getting constantly warmer,wit...
[期刊论文] 作者:Bao Hong Shi Dongmei, 来源:国际交流:英文版 年份:2007
In 2007,world economy maintains a momentum of rapid growth,with East Asia and South Asia still the fastest growingareas.However,due to lower pace of growth...
[期刊论文] 作者:Wu Xingtang Shi Dongmei, 来源:国际交流:英文版 年份:2007
I.World economy:growth continued,but with a lower pace Economy is the foundation and serves as an important reference for observing domestic situation of in...
[会议论文] 作者:Dongmei Zuo,Shuzhuo Li, 来源:第八届亚洲大洋洲地区老年学和老年医学大会 年份:2007
[期刊论文] 作者:CHENG Cheng,ZHOU Ya-Jun, 来源:中国物理快报(英文版) 年份:2007
Total cross sections in positron-Mg collision are calculated in the range 2.0-60.0eV using the momentum space coupled channels optical potential approach. The t...
[期刊论文] 作者:Chen Yuanting Shi Dongmei(Tran, 来源:国际交流:英文版 年份:2007
From March 8th to 14th, 2007, US President George W. Bush paid an visit to five Latin American states of Brazil, Uruguay, Colombia, Guatemala and Mexico. Th...
[期刊论文] 作者:Liu Jingqin SHI Dongmei(Transl, 来源:国际交流:英文版 年份:2007
I. Basic situation of international security at the current stage In recent years, the international security situation has always been in a state of genera...
[期刊论文] 作者:Walter Kolbow SHI Dongmei(Tran, 来源:国际交流:英文版 年份:2007
EU security policies consist of two aspects. Internally, they involve behaviors among European states. Externally, they refer to EU policies towards other c...
[期刊论文] 作者:Hongyu Liu,Xueming Ma,Dongmei, 来源:北京科技大学学报:英文版 年份:2007
Y2O3-doped ZnO-based varistor ceramics were prepared using high-energy ball milling (HEBM) and low-temperature sin- tering technique, with voltage-gradient of 1...
[期刊论文] 作者:DENG Dongmei,ZHAO Degang,WANG, 来源:稀有金属:英文版 年份:2007
n 类型的少数搬运人散开长度轧了金属种的电影器官的化学蒸汽免职(MOCVD ) 被测量表面学习了光电(PV ) 系列。n 类型轧了的 undoped 的少数搬运人散开长度比那更加大在,这被发...
[期刊论文] 作者:Dongmei SHAO Peiping ZHANG Liy, 来源:世界地质:英文版 年份:2007
叶卉石总是被使用做多孔的陶艺。为了相当与叶卉石设计多孔的陶艺的准备技术,我们必须知道多孔的陶艺的分类,特征,性质和应用。多孔的陶艺的分类和特征在这篇文章被考察;并且有他......
[期刊论文] 作者:Zhao Dongmei Wang Changguang M, 来源:电子科学学刊:英文版 年份:2007
The core of network security is the risk assessment. In this letter,a risk assessment method is introduced to estimate the wireless network security. The method...
[期刊论文] 作者:Xiuli Zhang,Dongmei Guo,Xiyou, 来源:中德临床肿瘤学杂志:英文版 年份:2007
目的将探索主要 ureteral 癌(PUC ) 的特征并且在 PUC 的诊断讨论螺线 CT (SCT ) 的价值。在 16 种情况中的主要 ureteral 癌的 SCT 调查结果被分析的方法并且与组织病理学说...
[期刊论文] 作者:Dongmei SHAO,Peiping ZHANG,Liy, 来源:黑龙江科技学院学报 年份:2007
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7...
[期刊论文] 作者:Hongyu Liu,Xueming Ma,Dongmei, 来源:城市道桥与防洪 年份:2007
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥...
[期刊论文] 作者:Jade Cheng,, 来源:通用机械 年份:2007
虽然质地坚硬,钢铁却有着适宜进一步加工的特性,通过铸造和轧制,可以加工成各种形状的钢材及其制品。比如,铁矿石在高炉内冶炼成生铁,用铁水炼成钢,再将钢水铸成钢锭或连铸坯。轧钢......
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