搜索筛选:
搜索耗时1.4938秒,为你在为你在102,285,761篇论文里面共找到 682 篇相符的论文内容
类      型:
[期刊论文] 作者:Tae-Jin JE,Kang-Won LEE,Sang-C, 来源:中国有色金属学报(英文版) 年份:2004
Machining experiment of micro channel structure with 6:4 brass was carried out by shaping process using a single crystal diamond tool. FEM simulation using soli...
[期刊论文] 作者:Seong Wei Lee,Musa Najiah, 来源:中国农业科学 年份:2004
This article described antimicrobial property and structure analysis of 2-hydroxypropane-1,2,3-tricarboxylic acid isolated from the crude extract of Citrus micr...
[期刊论文] 作者:VIRGINIA Laifun Lee,MARIA Lauc, 来源:水生生物学报 年份:2004
We surveyed the distribution, composition and diversity of freshwater fish in Hong Kong, China from 2002 to 2004.Sites surveyed were mainly streams, marshes and...
[期刊论文] 作者:LIN Wuzhong,LIANG Yanchun,LEE, 来源:自然科学进展 年份:2004
A doubly clamped microbeam actuated by electrostatic force with squeezed gas film damping is a well-known and standard micro-device in microelectromechanical sy...
[期刊论文] 作者:NOH Hae-Yong,JEE Kwang-Koo,LEE, 来源:稀有金属 年份:2004
Thin film of Ti-Ni alloy has a potential to perform the microactuation functions required in the microelectromechanical system (MEMS).It is essential, however,...
[期刊论文] 作者:So-Young Park,Wi-Young Lee,You, 来源:植物学报(英文版) 年份:2004
Changes in cellular isoflavone (daidzein and genistein) contents were monitored in root cultures of Albizzia kalkora (Roxb.) Prain after feeding different ratio...
[期刊论文] 作者:LIANG Bing-chen,LI Hua-jun,LEE, 来源:水动力学研究与进展B辑 年份:2004
The effects of waves on Surface Drag Coefficient (SDC) and surface mixing length were analyzed and discussed by carrying out three-dimensional current modeling...
[期刊论文] 作者:He-xin Zhang,Ho-young Lee,Youn, 来源:高分子科学(英文版) 年份:2004
The methyl methacrylate(MMA)/1-propylmethacrylate-polyhedral oligomeric silsesquioxane(PM-POSS) copolymers were synthesized via atom transfer radical polymeriza...
[期刊论文] 作者:Sangwook Lee,Sangmoon Soak,San, 来源:自然科学进展(英文版) 年份:2004
This paper presents a modified binary particle swarm optimization(BPSO)which adopts concepts of the genotype-phenotype rep-resentation and the mutation operator...
[期刊论文] 作者:Junji Cao,Shuncheng Lee,Kinfai, 来源:中国颗粒学报(英文版) 年份:2004
Concentrations and spatial distributions of organic carbon (OC) and elemental carbon (EC) in atmospheric particles were measured at 8 sites in four cities (Hong...
[期刊论文] 作者:Lee Yusheng,Xian Ze,An Qi, 来源:等离子体科学和技术(英文版) 年份:2004
A time-of-flight (TOF) detector has been used in the BESⅢ experiment to provide charged particle identification. In this paper, we present a novel high perform...
[期刊论文] 作者:Jun-Haeng HEO,Heon-Joo LEE,Il-, 来源:亚洲两栖爬行动物研究(英文版) 年份:2004
Introduction of an invasive prey species into an ecosystem may affect an endemic predator’s fitness by altering the prey-predator system. Successful adaptation...
[期刊论文] 作者:Sang-Moon Soak,Sang-Wook Lee,G, 来源:自然科学进展(英文版) 年份:2004
This paper focuses on a new optimization problem, which is called "The Multiple Container Packing Problem (MCPP)" and proposes a new evolutionary approach for i...
[期刊论文] 作者:Zheng-Tao Xu,Stephen Lee,Andre, 来源:结构化学 年份:2004
The structure type for the crystal of 4,4'-bis-(2-hydroxy-ethoxyl)-biphenyl 1 has been predicted by using the previously developed interfacial model for small o...
[期刊论文] 作者:Soong Lee,Seung-Cheol Son,Moon, 来源:世界胃肠病学杂志(英文版) 年份:2004
AIM: To determine intestinal permeability,the serum tumor necrosis factor (TNF)-α level and urine nitric oxide (NO) metabolites are altered in liver cirrhosis...
[期刊论文] 作者:-C.Tsai,Hsien Hua Lee,Jun-Ye, 来源:中国海洋工程(英文版) 年份:2004
[期刊论文] 作者:Wan-Li SONG,Chul-Hee LEE,Seung, 来源:中国有色金属学报(英文版) 年份:2004
采用盘销式摩擦磨损装置进行铜摩擦试验,研究在有、无磁场条件下磁流变液对界面表面的影响.在载荷为20~100 N,转速为127~425 r/min下旋转2h,进行一系列试验.摩擦因数和磨损率由...
[期刊论文] 作者:Wei-Ming Yeoh,Kim-Yang Lee,Sia, 来源:新型炭材料 年份:2004
以甲烷为碳源,co-Mo/MgO为催化剂,通过气相化学沉积制备了直径均匀的多壁碳纳米管(MWC-NTs).采用溶胶-凝胶法所制双金属催化剂的组成为Co∶Mo∶MgO=5∶20∶75(质量比).热重分...
[期刊论文] 作者:In-Soo SON,Sang-Pill LEE,Jin-K, 来源:中国有色金属学报(英文版) 年份:2004
研究液压对混合复合铸造Al 3003/Al 4004包覆材料微观组织变化的影响。复合铸造Al 3003/Al 4004包覆材料试样为圆形,由Al 3003(外部)和Al 4004(内部)材料组成。采用液压设备,在...
[期刊论文] 作者:Seung-Jun LEE,Young-Soo PARK,S, 来源:中国有色金属学报(英文版) 年份:2004
研究铝合金5083-H116在海水中的气蚀损伤行为特征,以期提高合金的耐气蚀性能。通过在不同电位条件下进行的恒电位实验,确定抑制气蚀损伤的最优保护电位。实验在电位为-2.2~-1.4...
相关搜索: