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[期刊论文] 作者:S.琼斯,高峰,
来源:水利水电快报 年份:2004
N.D.德朗斯(Nant de Drance)电站建成后将成为瑞士首座可变速抽水蓄能电站,可满足国家电网不断增长的峰荷供电需求.对欧洲阿尔卑斯山区的水电开发趋势进行了调查研究,重点介...
[期刊论文] 作者:S. Z. Mahfooz,
来源:绵阳师范学院学报 年份:2004
图像压缩技术是基于在空域,时域或者频域上移除数据冗余的算法。它相当大地减少了数据转换率,但是随之的视频压缩信号对于传输误差更加敏感。差错恢复技术相对于通道误差增强了......
[期刊论文] 作者:S. L. Olsen,
来源:中国物理C 年份:2004
I review some of the recent experimental results on the so-called XYZ mesons....
[期刊论文] 作者:S. Dragan,
来源:复旦学报(自然科学版) 年份:2004
1IntroductionOrganic ion exchangers in beads form are the most widely utilized materials in the purification, concentration and separation processes of inorgani...
Effect of Wetting-Drying Cycles on Redistribution of Lead in Some Semi-Arid Zone Soils Spiked with a
[期刊论文] 作者:H.KHODAVERDILOO,M.RAHMANIAN,S.,
来源:土壤圈(英文版) 年份:2004
Mobility and bioavailability of lead (Pb) could be affected considerably by soil physicochemical properties; however,less is known about the effect of Pb levels...
[期刊论文] 作者:Maximiliano S. Sangoi,
来源:药物分析学报(英文) 年份:2004
A dissolution test for fesoterodine low dose extended-release tablets using liquid chromato-graphic (LC) method equipped with a C18 monolithic column was develo...
[期刊论文] 作者:Yu.I.Chutov,O.Yu.Kravchenko,S.,
来源:等离子体科学和技术 年份:2004
Parameters of self-consistent magnetized dusty sheaths are investigated using computer simulations of a temporal evolution of one-dimensional slab plasma with d...
[期刊论文] 作者:S. Cubric,
来源:国际纺织导报 年份:2004
研究包芯纱的性能对结子花式线拉伸性能的影响得出以下结论:不同线密度纱线对断裂伸长影响很大,而对强度影响不大;就原材料的影响来看,发现在研究的纱线中,对聚酯纱线断裂强度......
[期刊论文] 作者:Wun S. CHAO,
来源:杂草科学 年份:2004
全球气候变化有利于外来杂草的入侵与传播,因为外来种通常可以快速适应环境.除草剂和抗除草剂作物的滥用使抗性杂草严重威胁现代农业的发展,这就需要新技术有效缓解当前的和...
[期刊论文] 作者:A.Hassani,A.Habibollahzadeh,S.,
来源:矿物冶金与材料学报 年份:2004
A low-alloy gray cast iron containing hard carbide-forming elements,such as vanadium and chromium,was cast by sand mould casting.Its wear resistance was compare...
Assessment of Seasonal Sedimentation in Rain-fed Irrigation Reservoirs by a Hillslope Erosion Modeli
[期刊论文] 作者:Weerakoon S. B,
来源:山地科学学报(英文版) 年份:2004
A distributed hillslope model is presented for the computation of seasonal sediment loads flowing into the rain-fed irrigation reservoirs (tanks)from the mounta...
[期刊论文] 作者:S. G. Velleman,
来源:中国家禽 年份:2004
肌肉细胞增殖、迁移、黏附和融合形成肌管,肌管进一步分化为成熟肌纤维,肌纤维发育在孵化期几乎就能完成.胚胎期肌肉生长的特点是成肌细胞增生,数量增多,而孵化后肌纤维的生...
[期刊论文] 作者:Ren S. Essene,
来源:西部金融 年份:2004
行业结构与目前监管面临的挑战由于复杂的金融危机不断恶化,引发了信贷市场崩溃,一些人认为新的监管“有待讨论”。自20世纪90年代后期以来,金融服务业结构的变化,特别是对抵押贷......
[期刊论文] 作者:S.汗;张强,
来源:国外社会科学 年份:2004
许多迹象表明,南亚地区正在形成以大陆为基础的经济一体化。令人吃惊的是,目前,许多跨地区的贸易集团已经采取了某种发展战略,积极参与南亚地区的经济一体化,欧洲联盟、东南亚联盟、亚太经济合作与发展组织、北美自由贸易区以及非洲联盟的积极参与都增强了这一趋势。......
[期刊论文] 作者:Akhtar S. Khan,,
来源:Journal of Iron and Steel Research(International) 年份:2004
As a model bcc metal, tantalum and its alloys have wide applications in defense-related fields. The KHL (Khan, Huang, Liang, 1999) model and the constitutive mo...
[期刊论文] 作者:Adam S. Posen,
来源:金融发展研究 年份:2004
资产价格泡沫一般源自“非理性繁荣”、技术进步和金融自由化等因素,货币条件与泡沫上涨之间的联系十分微弱,因此。中央银行不必也不可能通过紧缩货币来挤破泡沫。急剧收紧银根......
Resource Flows of Villages with Contrasting Lifestyles in Nanda Devi Biosphere Reserve, Central Hima
[期刊论文] 作者:S. Rao,S. Nautiyal,R. K. Ma,
来源:山地科学学报 年份:2004
Resource use efficiency analyses of village ecosystem are necessary for effective and efficient planning of resource utilization. This paper deals with economic...
Effects of laser phase transformation hardening parameters on heat input and hardened-bead profile q
[期刊论文] 作者:S. BADKAR,K. S. PANDEY,G. B,
来源:中国有色金属学报(英文版) 年份:2004
Laser transformation hardening (LTH) of unalloyed titanium of 1.6 mm-thick sheet, nearer to ASTM Grade 3 of chemical composition was investigated using 2 kW CW...
Purification and Characterization of Extracellular Laccase Secreted by Pleurotus sajor-caju MTCC 141
[期刊论文] 作者:S. S. Yadav,K. D.,
来源:生物工程学报 年份:2004
The effect of lignin containing natural substrates corn-cob, coir-dust, saw-dust, wheat straw and bagasse particles on the extracellular secretion of laccase in...
[期刊论文] 作者:S. IBRAHIM,S. M.,
来源:应用数学和力学(英文版) 年份:2004
The free convective heat transfer to the power-law non-Newtonian flow from a vertical plate in a porous medium saturated with nanofluid under laminar conditions...
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