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[期刊论文] 作者:Yazdani,M. Ardestani, 来源:中国铸造 年份:2004
The effect of sub-zero cooling on microstructure and mechanical properties of a low alloyed austempered ductile iron has been investigated. Austempering of samp...
[期刊论文] 作者:Mohammed Alamgir,M. Al-Amin, 来源:林业研究(英文版) 年份:2004
在孟加拉的吉大港南部森林地区,利用异速模型评估森林植被的有机碳的储量.异速模型被分别应用测试树木(被划分两个胸高直径级)、灌木和草本植物.采用基部面积估算胸高直径级...
[期刊论文] 作者:Rodrigues,C.Laiginhas,M., 来源:岩石力学与岩土工程学报(英文版) 年份:2004
After a general analysis regarding the concept of coal “cleat system”, its genetic origin and practical applications to coalbed methane (CBM) commercial produ...
[期刊论文] 作者:F.Iannone,L.Wang,C.Centioli,M., 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:M. Pustka,P. Kloucek, 来源:国际纺织导报 年份:2004
描述了安装有股线及经纱传感器的Waweon测试仪及其测试和评估方法.例举了来自织机和缝纫机的相关图表.独特的测试和评估软件方便了仪器操作,挖掘了应用潜力.Waweon独特的设计...
[期刊论文] 作者:M. TAJ,Jun-qian ZHANG, 来源:应用数学和力学(英文版) 年份:2004
Motivated by the application of Winkler-like models for the buckling analysis of embedded carbon nanotubes, an orthotropic Winkler-like model is developed to st...
[期刊论文] 作者:M. Gabriela Bidart-Bouzat,Adeb, 来源:植物学报(英文版) 年份:2004
This review focuses on individual effects of major global change factors, such as elevated CO2, Oa, UV light and temperature,on plant secondary chemistry. These...
[期刊论文] 作者:M. De SANTISTEBAN, 来源:国际泥沙研究(英文版) 年份:2004
Although there is much evidence of intense soil erosion in cultivated areas of Navarre (Spain), scarce information currently is available regarding soil loss ra...
[期刊论文] 作者:Kleicke,M. Kern, 来源:国际纺织导报 年份:2004
目前能够生产出无弯曲、纤维体积含量可调的纱罗机织物,还可创造出具有所需弯曲刚度和悬垂性的网格结构及密实结构.本研究项目为丰富产品种类、创建新型市场奠定了基础.也预...
[期刊论文] 作者:Thomas M. Bodenstine,Benjamin, 来源:癌症(英文版) 年份:2004
The bones are the most common sites of breast cancer metastasis. Upon arrival within the bone microenvironment, breast cancer cells coordinate the activities of...
[期刊论文] 作者:M. SHARIF,N. CLAASSEN, 来源:土壤圈(意译名) 年份:2004
A pot experiment was conducted to investigate the action mechanisms of arbuscular mycorrhizal (AM) fungi in phosphorus (P) uptake of Capsicum annuum L.in a ster...
[期刊论文] 作者:E.LVAREZ,M. J. FERNNDEZ-SANJUR, 来源:土壤圈(意译名) 年份:2004
Large quantities of mussel shells (66 000-94000 t year-1),an alkaline material that can be used as a soil amendment,are generated as waste in Galicia,NW Spain.A...
[期刊论文] 作者:AMANULLAH,M. W. KHAN, 来源:土壤圈(意译名) 年份:2004
A field experiment was conducted using a split plot randomized complete block design with three replications to study the effects of potassium (K) and phosphoru...
[期刊论文] 作者:LIU Junlai,M. Shimada, 来源:科学通报(英文版) 年份:2004
Experiments were conducted repeatedly on Mannari granite under different temperature and confining pressure conditions. Systematic micro- and submicro-structura...
[期刊论文] 作者:江源,M. Meurer, 来源:地球科学进展 年份:2004
简要综述了山地景观的温度及其对植被作用的国内外研究现状.根据实验和野外实测数据,对效应温度的测定方法和性质进行了系统分析.结果表明:①效应温度是分析山地景观温度特征...
[期刊论文] 作者:Stefanie M. ICKERT-BOND,Catari, 来源:植物分类学报 年份:2004
Ephedra comprises approximately 50 species, which are roughly equally distributed between the Old and New World deserts, but not in the intervening regions (amp...
[期刊论文] 作者:Christopher M. Colangelo,Mark, 来源:基因组蛋白质组与生物信息学报(英文版) 年份:2004
We report a significantly-enhanced bioinformatics suite and database for proteomics research called Yale Protein Expression Database (YPED) that is used by inve...
[期刊论文] 作者:Lotfollahi-Yaghin, M. 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:M.?ahin,E.?adrl, 来源:矿物冶金与材料学报 年份:2004
A Bi-2.0Zn-0.2Al (wt%) ternary eutectic alloy was prepared using a vacuum melting furnace and a casting furnace. The samples were directionally solidified upwar...
[期刊论文] 作者:M. THIRUMURUGAN,S. KUMARAN, 来源:中国有色金属学报(英文版) 年份:2004
挤压比为4:1,将铸态AZ91镁合金分别在250,300和350°C下进行挤压,随后进行析出硬化处理(T6)。经过热挤压和析出硬化处理后,铸态AZ91镁合金中粗大的和偏析Mg17Al12析出相被细化并均...
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