搜索筛选:
搜索耗时1.2952秒,为你在为你在102,285,761篇论文里面共找到 815 篇相符的论文内容
发布年度:
Formation and Microstructural Characterization of Silicon-modified Aluminide Coating on Nickel-based
[期刊论文] 作者:Shahriari,F.Ashrafizadeh,A.,
来源:材料热处理学报 年份:2004
In this investigation, aluminide coatings used to protect industrial components at high temperature and corrosive environments were modified with silicon additi...
Artificial Neural Network Ability in Evaluation of Random Wave-Induced Inline Force on A Vertical Cy
[期刊论文] 作者:A.,Pourt,
来源:中国海洋工程(英文版) 年份:2004
An approach based on artificial neural network (ANN) is used to develop predictive relations between hydrodynamic inline force on a vertical cylinder and some e...
[期刊论文] 作者:Rischer,A. Goossens,
来源:分子植物育种 年份:2004
Plant-derived secondary metabolites still constitute important resources for currently prescribed drugs and for the discovery of active principles which are eff...
[期刊论文] 作者:E.Sander Connolly,Alejandro A.,
来源:国际脑血管病杂志 年份:2004
背景和目的 本指南旨在为动脉瘤性蛛网膜下腔出血(aneurysmal subarachnoid hemorrhage,aSAH)的诊断和治疗提供最新的全面推荐意见.方法 对MEDLINE数据库进行正式的文献检索(...
Heavy metal content in coral reef sediments from Red Sea of Yemen and its significance on marine env
[期刊论文] 作者:Nabil A. AL-SHAWAFI,Abdulhakee,
来源:世界地质(英文版) 年份:2004
In order to determine and assess the concentrations of trace elements in coral reefs sediments from Red Sea of Yemen, sediment samples were collected, treated a...
[期刊论文] 作者:R.J.Wiglusz,A.Gaki,G.Kakali,A.,
来源:稀土学报 年份:2004
La0.8Sr0.2MnO3-δ was synthesized by the Pechini's method.The XRD pattern and TEM indicate the formation of the perovskite without the presence of secondary pha...
[期刊论文] 作者:SAHEBI,A. RAZANI,
来源:数学物理学报(英文版) 年份:2004
Under the framework of a real Hilbert space, we introduce a new iterative method for finding a common element of the set of solution of a general equilibrium pr...
[期刊论文] 作者:Sallat,A. Berthel,
来源:国际纺织导报 年份:2004
若能将酶再利用,则可极大地提升酶的使用效率.研发项目的结果表明,就纺织品色牢度而言,无论是在优化还是在满足要求方面,都不再受缚于酶的一次性使用....
[期刊论文] 作者:WANG Tao,A. Dorner-Reisel,
来源:中国有色金属学会会刊(英文版) 年份:2004
In order to improve the quality of the bio-active coating on medical grade CoNiCrMo substrate, hydroxyapatite(HA) coatings were produced via low-temperature dip...
[期刊论文] 作者:A. Hamza,N. Nagaraju,
来源:催化学报 年份:2004
Amorphous aluminophosphate (AlP) and metal‐aluminophosphates (MAlPs, where M=2.5 mol%Cu, Zn, Cr, Fe, Ce, or Zr) were prepared by coprecipitation method. Their...
[期刊论文] 作者:A. Ramírez-López,
来源:矿物冶金与材料学报 年份:2004
The factors involved in simulating the continuous casting process of steel and the effects of the factors on the thermal behavior were investigated. The numeric...
[期刊论文] 作者:Sameh M.K.ABOUL-FOTOUH,Noha A.,
来源:催化学报 年份:2004
Extended use of supported Pt catalysts causes thermal migration of Pt particles to form large agglomerates,thus decreasing the catalytic activity.The combinatio...
[期刊论文] 作者:Stefano Lucchina,Hillary A. Be,
来源:中华创伤杂志(英文版) 年份:2004
Radiographic changes consisting of alterations in mineral content, osteopaenia or destructive neuropathy that occur following successful finger replantation hav...
[期刊论文] 作者:A. Chatterjee,S.Mooney,G.F.Van,
来源:林业研究(英文版) 年份:2004
为了对不同管理制度下林地拥有者从事碳交换所需求经济激励进行评价,对森林碳固定作用进行了研究.固碳和木材联合管理的相关成本对构建理想的森林碳交换系统非常重要.本项研...
[期刊论文] 作者:陆步云,MERLIN A.,
来源:南京林业大学学报(自然科学版) 年份:2004
通过测量气体渗透值研究室外涂饰木材在老化过程中的性能表现.结果表明:涂层渗透性与涂料的抗老化能力无直接关系;木材涂饰以后气体渗透值比未涂饰时均有所下降,在老化过程中...
[期刊论文] 作者:A. Vorobiev,S. Cheburashkin,
来源:冰川冻土 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:莱斯利·A. 默里,
来源:求是学刊 年份:2004
文章探讨发展出一种民主的马克思主义的可能性.民主在此意味着"由人民做主",即人民真正地参与影响其生活的社会-政治-经济-文化的决策.这可能采取任何可能形式的代议制民主或...
[会议论文] 作者:A. Salama,
来源:2004年国际选煤技术交流会 年份:2004
本文介绍了2001年加拿大煤炭统计情况,分析了1997~2001年加拿大煤炭变化趋势,研究了煤炭工业面临的挑战。...
[期刊论文] 作者:A. M. Kuipers,
来源:China Particuology Science and Technology of Particles 年份:2004
The occurrence of heterogeneous flow structures in gas-particle flows seriously affects the gas-solid contacting and transport processes in high-velocity gas-fl...
[期刊论文] 作者:A. TASKESEN,K. KUTUKDE,,
来源:Transactions of Nonferrous Metals Society of China 年份:2004
基于刀具磨损和钻孔尺寸误差等多个性能指标,对B4C颗粒增强铝合金切削加工参数进行评估和优化。通过Taguchi的L27,3水平4因子正交阵列进行实验设计。研究结果表明:磨粒磨损和...
相关搜索: