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[期刊论文] 作者:QIN Bo-tao WANG De-ming LI Zen,
来源:中国矿业大学学报:英文版 年份:2006
克服倒沙的缺点,有推迟沙的能力的 thickener 被开发。形成使增加密度的泥浆与沙被混合,并且能对免职保险 thes ands,堵塞管道和脱水。thickener 的化学结构在这篇论文被介绍,生...
[期刊论文] 作者:YU Ji-feng,SUI Feng-gui,LI Zen,
来源:中国矿业大学学报:英文版 年份:2008
作者申请了一连续小浪变换(享特威) 和快 Fourier 变换(快速傅里叶变换) 的联合方法到 gamma 光线从 Q3, G1 和 D2 的记载得好的数据井。这高分辨率的 stratigraphic 研究基于...
Recognition of Milankovitch cycles in the stratigraphic record:application of the CWT and the FFT to
[期刊论文] 作者:YU Ji-feng,SUI Feng-gui,LI Zen,
来源:中国矿业大学学报(英文版) 年份:2004
The authors applied a the combination of Continuous Wavelet Transform (CWT) and Fast Fourier Transform (FFF)methods to gamma ray well-log data from the Q3, G1 a...
[期刊论文] 作者:QIN Bo-tao,WANG De-ming,LI Zen,
来源:中国矿业大学学报(英文版) 年份:2004
To overcome the shortcomings of pouring sands, a thickener with the ability to suspend sands was developed.It is mixed with sands to form densified slurry, and...
EXPRESSION OF BASIC FIBROBLAST GROWTH FACTOR,TRANSFORMING GROWTH FACTOR β1 AND THEIR RECEPTORS IN OS
[期刊论文] 作者:WANG Dong,XIAO Hualiang,LI Zen,
来源:中国癌症研究(英文版) 年份:2004
Objective: To investigate the expression of angiogenic factors, basic fibroblast growth factor (bFGF)and transforming growth factor (TGF)-β1 in osteosarcoma, i...
Studies on the Total Synthesis of Crotocembreneic Acid and Neocrotocembreneic Acid:A Perchloric Acid
[期刊论文] 作者:Zuo Sheng LIU,Jiong LAN,Li Zen,
来源:中国化学快报(英文版) 年份:2004
A perchoric acid-induced lactonization reaction of epoxy ester is described.Using lithium perchlorate, the ketone is obtained in 81% yield....
Studies on the Total Synthesis of Crotocembreneic Acid and Neocrotocembreneic Acid:A Perchloric Acid
[期刊论文] 作者:Zuo Sheng LIU,Jiong LAN,Li Zen,
来源:黑龙江科技学院学报 年份:2000
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...
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