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[期刊论文] 作者:LIAOLian-an,FANGHong-yun,LIZhe, 来源:高等学校化学研究:英文版 年份:2004
Fourteen new derivatives of avermectin B1a, and ivermectin B1a were synthesized from C5-O-triphenyl silylavermectin B1a and ivermectin B1a (yield from 40% to 83...
[期刊论文] 作者:LIZhe,LIUJian-gang,LIUZhi-chao, 来源:泰山医学院学报 年份:2004
[期刊论文] 作者:Lizhe An,Xiaofeng Xu,Hongguan, 来源:植物学报(英文版) 年份:2004
Tomato (Lycopsicon esculentum Mill.) plants grown in a greenhouse were irradiated with two different levels of UV-B, namely 8.82 (T1) and 12.6 kJ/m2 per day (T2...
[期刊论文] 作者:Cai Lizhe,HONG Huasheng,Zou Ch, 来源:海洋学报 年份:2004
Marine free-living nematodes were investigated at 13 sampling stations divided into three transects in the northern Taiwan Strait in February 1998. One hundred...
[期刊论文] 作者:XIE Qi-lan,XIE Qi-lan, 来源:读与写(教育教学刊) 年份:2004
[期刊论文] 作者:XIE Li-juan,XIE Guang-rong,CHE, 来源:中南工业大学学报(英文版) 年份:2004
A novel method was designed to solve reinforcement learning problems with artificial potential field. Firstly a reinforcement learning problem was transferred t...
[期刊论文] 作者:Xie Dilin, 来源:合成化学 年份:2004
The infrared spectra of pure compounds of ninety thousands, poly compounds of twelve thousand, drugs of one thousand were included in the data bank. All of them...
[期刊论文] 作者:XIE Xin-ran, 来源:装备制造技术 年份:2004
针对采用加速度有线采集系统的机载式压实度仪灵活性差、布线困难的局限性,就运用无线加速度传感器对采用加速度有线采集系统的机裁式压实度仪的改造提出了方案....
[期刊论文] 作者:XIE Xiang-ming, 来源:装备制造技术 年份:2004
急回特性是平面四杆机构的一个重要特性,合理选择行程速比系数对提高机械的生产效率具有重要的意义....
[期刊论文] 作者:XIE Ying-hao, 来源:通信技术 年份:2004
符号定时与频偏估计是OFDM系统中的关键技术之一.本文分析了符号定时偏差与载波频偏对OFDM系统性能的影响,提出了一种优化的最大似然同步算法,并给出了在FPGA中的硬件实现方...
[期刊论文] 作者:XIE Wen-Fang, 来源:理论物理通讯(英文版) 年份:2004
By using the exact diagonalization method, a system of three electrons confined in a parabolic quantum dot in zero magnetic field is studied. The ground-state e...
[期刊论文] 作者:XIE Huan, 来源:海外英语 年份:2004
Love and moral are the main themes of Iris Murdoch s literary works.As the combination of the two main themes,her Eros theory plays a significant role in her wo...
[期刊论文] 作者:XIE Shu-fen, 来源:海外英语(上) 年份:2004
Contextualizing his Foe (1986) in the backdrop of South African post-apartheid, Coetzee manipulates multifarious postmodern narrative ploys to purloin, rewrite...
[期刊论文] 作者:XIE Zhi-yuan, 来源:高压电器 年份:2004
10 kV馈线终端工作环境恶劣,电磁干扰严重,其运行的可靠性和抗干扰性至关重要,在对电力系统中最典型的几种干扰源的产生机理、频谱特征和耦合途径进行分析的基础上,对馈线终...
[期刊论文] 作者:XIE Ping-hui, 来源:云南地质 年份:2004
收集十几块和田玉仔料和数十块仿和田玉仔料样品,进行肉眼与镜下观察.简要总结和田玉仔料与仿和田玉仔料以及染色和田玉仔料的肉眼鉴别要领....
[期刊论文] 作者:XIE Hua-jie, 来源:海外英语(上) 年份:2004
This paper aims to briefly summarize the major differences in form, techniques and characterization between modern fiction and conventional realistic novels by...
[期刊论文] 作者:E Xie, 来源:RESEARCH ARTICLE 年份:2004
By utilizing the China Health and Nutrition Survey (CHNS) data,this paper examines the extent of deviations in terms of horizontal equity in the field of China'...
[期刊论文] 作者:Xie Zhenhua, 来源:Pros&Cons 年份:2004
CLIMATE change is a severe challenge facing humanity in the 21st century and thus the Chinese Government always attaches great importance to the problem.Activel...
[期刊论文] 作者:XIE Xiao-tian, 来源:临床儿科杂志 年份:2004
再生障碍性贫血(再障)是儿童期严重的血液病之一,诊断和治疗较为困难,尤其是重型再障预后较差.我国属于再障高发地区,必须引起足够的重视.目前已经明确,T淋巴细胞"免疫介导"...
[期刊论文] 作者:Xie Zongkui, 来源:矿业科学技术(英文版) 年份:2004
Where are the zones more enriched in sand deposits in the down slope and deep depression of the low swelling slope belt? Are there any screening conditions for...
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