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[期刊论文] 作者：LI Tong,PENG Jiangde,LI Qun,LI,
来源：中国激光 年份：2004
A fiber null coupler with very high splitting ratio of 100000: 1 and low excess loss of 0.1 dB is reported. The control of the maximum splitting ratio and loss...
[期刊论文] 作者：Li Kun,Yang Wen-yun,Li Li,Zhan,
来源：城市道桥与防洪 年份：2004
Yunnan Province is the main distributing area of Jatropha curcas L. This plant is abundant in several drainage areas of the dry-hot, dry-warm and sub-humid vall...
[期刊论文] 作者：Li Li Wang,Zhan Lin Li,Yong Pe,
来源：中国化学快报（英文版） 年份：2004
A new caged polyprenylated xanthone,gambogic aldehyde(1),was isolated from the resin of Garcinia hanburyi.Its structure was elucidated on the basis of spectral...
[期刊论文] 作者：Shu Chun LI,Li Min NIU,Hui LI,,
来源：中国化学快报 年份：2004
The adhesive interaction between tumor cells and host cells or the extra cellular matrix plays a crucial role in metastasis. Due to the anti-metastasis effects...
[期刊论文] 作者：LI Bo,LI Qi,ZHOU Ji,LI Longtu,
来源：黑龙江科技学院学报 年份：2004
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：Li Li,Yong Peng,Yong Liu,Li Ji,
来源：中国化学快报（英文版） 年份：2004
Two new phenethanol glycosides, named ligurobustoside P (1), Iigurobustoside Q (2) have been isolated from the leaves of Ligustrum robustum, together with the k...
Alkalibacillus halophilus subsp.hitensis subsp.nov.:A new subspecies of moderately halophilic bacter
[期刊论文] 作者：LI Wei-guo,MA Fang,WEI Li,LI L,
来源：哈尔滨工业大学学报（英文版） 年份：2004
In order to develop halophilic microorganism resources to improve environment,a Gram-positive,strictlv aerobic and moderately halophilic bacterial strain JSAI W...
[期刊论文] 作者：LI Jia,FANG Yu,LI Ang,LI Fei,
来源：中华医学杂志（英文版） 年份：2004
Metastases to the breast from extramammary neoplasms are very rare, constituting 2.7% of all malignant breast tumours. The most common primary tumor metastatic...
Relationship between archaeological sites distribution and environment from 1.15 Ma BP to 278 BCin H
[期刊论文] 作者：LI Lan,WU Li,ZHU Cheng,LI Feng,
来源：地理学报（英文版） 年份：2004
A total of 1362 archaeological sites from the Paleolithic Age to the Warring States time in Hubei Province increase gradually from west to east and from high la...
[期刊论文] 作者：LI Shu-Wei,WANG Yi,LI Jin,LI Y,
来源：中国物理C（英文版） 年份：2004
A new method to monitor the energy variation of a multi-energy electron linac by combining a Cerenkov detector and a CsI(Tl) detector is reported. The signals i...
[期刊论文] 作者：MA Shulong,LI Yong,LI Yue,LI H,
来源：中国耐火材料（英文版） 年份：2004
The magnesia - hercynite bricks offer a new lining to rotary cement kiln.They are well adopted and widely used in the high temperature zone of cement kiln,and h...
[期刊论文] 作者：Lu QU,Ran LI,Jia LI,Ke-feng LI,
来源：水科学与水工程 年份：2004
More and more high dams have been constructed and operated in China.The total dissolved gas (TDG) supersaturation caused by dam discharge leads to gas bubble di...
[期刊论文] 作者：Li Ping-Xue,Li De-Hua,Li Chun-Yong,Zhang Zhi-Guo,
来源：中国物理（英文版） 年份：2004
The operating condition of a cw simultaneous dual-wavelength Nd:YAG laser for both 4F3/2-4I9/2 (quasi-threelevel system) and 4F3/2-4I11/2 (four-level system) tr...
[期刊论文] 作者：LI Chun-xu,CHEN Ke-xuan,LI He-qi,LI De-wu,
来源：材料热处理学报 年份：2004
Aiming at the plasma spraying process control, the control system model is developed on the basis of analyzing control parameters and coating properties and the...
Effect of Cd and Sn Addition on the Microstructure and Mechanical Properties of Al-Si-Cu-Mg Cast All
[期刊论文] 作者：LI Rong-de,LI Run-xia,YU Li,HU Zhuang-qi,
来源：材料热处理学报 年份：2004
The present work has investigated the effect of trace elements Cd and Sn on the microstructure and mechanical properties of Al-Si-Cu-Mg cast alloy. With the inc...
[期刊论文] 作者：Shuangnong Li,Shibo Tang,Wei Li,Dongping Li,
来源：城市道桥与防洪 年份：2004
Purpose:To investigate the retinal toxicity of FK506 by intravitreal administration.Methods :Twenty-two eyes of 14 New Zealand rabbits were investigated. FK506...
[期刊论文] 作者：SONG Shaodong LI Guangsheng LI,
来源：核工业西南物理研究院年报：英文版 年份：2004
...
[期刊论文] 作者：Shaohua Li,Zhenhua Li,Huilong,
来源：中国神经再生研究（英文版） 年份：2004
BACKGROUND:Brain-derived neurotrophic factor(BDNF)provides nourishment to injured neurons. Neural stem cells can differentiate into neurons to repair neuronal i...
[期刊论文] 作者：Jingruo li,Mengquan li,Jiangta,
来源：中德临床肿瘤学杂志（英文版） 年份：2004
Objective: To study the relationship of the telomerase activity and the p53 gene mutation in cardiac cancer.Methods: Telomerase activity and the p53 gene mutati...
[期刊论文] 作者：LI Zi-chen,LI Zhong-xian,YANG,
来源：中国邮电高校学报（英文版） 年份：2004
Recently, Harn proposed one digital signature scheme for Diffie-Hellman key exchange system. In this paper, we point out at first that there is a weakness in Ha...
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