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[期刊论文] 作者:Ebrahim Karamian,Mahmood Reza,
来源:自然科学进展(英文版) 年份:2004
The surface characteristics of an implant that influence the speed and strength of osseointegration include crystal structure and bioactivity. The aim of this s...
[期刊论文] 作者:Rezaee Ebrahim Saraee Khadijeh,
来源:稀土学报(英文版) 年份:2004
In the east coast Peninsular Malaysia region, sediments are transported by several rivers from the east Malaysia into the South China Sea estuary. In the vicini...
The efficient synthesis of 14-alkyl or aryl 14H-dibenzo[a,j]xanthenes catalyzed by bismuth(III) chlo
[期刊论文] 作者:Ebrahim Soleimani,Mohammad Meh,
来源:中国化学快报(英文版) 年份:2004
An efficient method for the synthesis of 14-alkyl or aryl 14H-dibenzo[a j]xanthene derivatives by the reaction of β-naphthol, and aldehydes in the presence of...
[期刊论文] 作者:Borhan MANSOURI,Ebrahim HOSHYA,
来源:中国鸟类 年份:2004
2010年11-12月,我们在伊朗南部Hara生物圈保护区调查并分析了黄喉岩鹭(Egretta gularis)和灰林银鸥(Larus heuglini)羽毛中的镍含量.根据方差分析,同一鸟种羽毛中镍含量在不...
[期刊论文] 作者:Ebrahim YOUSEFI, Ahmad IRANNEJ,
来源:Transactions of Nonferrous Metals Society of China 年份:2004
采用脉冲电流技术电沉积纳米晶Fe-Ni-Cr涂层。SEM测试结果表明,在低电流密度下,涂层为小结节和细小菜花结构的混合形态;而在高电流密度下,Cr含量随着涂层中Fe和Ni含量的降低...
[期刊论文] 作者:Mohammad Saeed SEIF,Ebrahim JA,
来源:中国海洋工程(英文版) 年份:2004
High speed planing hulls have complex hydrodynamic behaviors. The trim angle and drafts are very sensitive to speed and location of the center of gravity. There...
Application of numerical modeling and genetic programming to estimate rock mass modulus of deformati
[期刊论文] 作者:Ebrahim Ghotbi Ravandi,Reza Ra,
来源:矿业科学技术学报(英文版) 年份:2004
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[期刊论文] 作者:Ebrahim Hesami,Denis Jelagin,N,
来源:中外公路 年份:2004
足够膜厚、方便摊铺和良好压实是获得最佳胶浆粘度的合理参数.目前,已有针对不同粒子—流体比率的悬浮液粘度的计算模型.然而,这些模型都不适用于沥青胶浆,因为沥青胶浆中矿...
Effects of temperature and input energy on a quasi-three-level emission cross section of Nd~(3+):YAG
[期刊论文] 作者:Seyed Ebrahim Pourmand,Noriah Bidin,Hazri Bakhtiar,,
来源:Chinese Physics B 年份:2004
The influence of temperature and input energy on the fluorescence emission cross section of Nd 3+ :YAG crystal is studied. The stimulated emission cross section...
[学位论文] 作者:木为亚(Muawya Elsheikhhamid Ebrahim Mohmed),,
来源:西北师范大学 年份:2004
本文系统的研究了n维模糊数值函数的局部和整体最小Riemann和与模糊数值函数的Henstock积分.同时,对集值函数与n维模糊数值函数的HenstockStieltjes积分进行了讨论.全文共分...
[期刊论文] 作者:汤志刚, 李红伟, 温燕明, 贺志敏, Ebrahim, 郭,
来源:煤化工 年份:2004
提出了秩化数和秩化度的定义,用以评价焦化流程的秩序优劣,并以传统煤气净化流程、低品质硫磺和脱硫废液混合制酸工艺以及相应的改进工艺为例进行了分析。相对于传统煤气净化...
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