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195篇 您的检索式:作者名="Needham J"
    题名 作者 年代 出处 被引量
1采用里卡多高速直喷式4气门发动机以满足低排放和燃油经济性的要求显示文摘为了研究和证明高速直喷式柴油机的潜力,里卡多公司实施了一项研究并分析每缸4气门燃烧系统性能和排放的计划。分析研究以计算流体力学的研究为基础,以模拟活塞顶燃烧室凹腔内油束与空气的相互作用,并加深对混合过程的理解。试验研究的主要变量包括涡流比、燃烧室凹腔的几何形状、喷油嘴的结构型式、当代先进的转子式电控分配泵和废气再循环的作用。系统的优化过程提供一种固定不变的涡流型式,其制动平均有效压力可达1.5 MPa[15 bar]以上,而BSU(波许烟度单位)却在1.0以下。R49欧洲Ⅱ NO_X水平满足烟度、颗粒排放量和燃油经济性的竞争要求,证明完全按今后发展的欧洲Ⅱ具有极大的开发潜力。车辆排放和燃油耗的模拟表明,此燃烧系统具有满足90年代规定的重型和轻型车排放法规的潜力。Needham J R Whelan S 张耀庆 1996国外内燃机1996,28,2:5
2Lipoprotein lipase gene variants relate to presence and degree of microalbuminuria in type II diabetes显示文摘MATTU R K TREVELYAN J NEEDHAM E W 2002Diabetologia2002,45,6:2
3Insights into proteinprotein interfaces using a Bayesian network prediction method 显示文摘Bradford J R Needham C J Bulpitt A J 2006Journal of Molecular Biology2006,362,2:1
4Stable pattern and standing wave formtion in a simple isothermal cubic autocatalytic reaction scheme显示文摘Hill R Merkin J H Needham D J 1995Journal of Engineering Mathematics1995,29,3:1
5Sleep deprivation in critical illness :its role in physical and psychological recovery 显示文摘Dale M Needham J 2012IntCare Med2012,7,2:1
6The worm gut : a natural clay mineral factory and a possible cause of diagenetic grain coats in sandstones显示文摘Worden R H Needham S J Cuadros J 2006Journal of Geochemical Exploration2006,89,:1
7Medieval Preparations of Urina- ry Steroid Hormones 显示文摘Lu Gui - Djen Needham J 1963Nature1963,,4911:1
8Linear Programming for Flood Control in the Iowa and Des Moines Rivers显示文摘Needham J T Watkins D W Lund J R 2000Journal of Water Resources Planning and Management2000,126,3:1
9Epidermal-growth-factor receptor status as predictor of early recurrence of and death from breast cancer显示文摘SAINSBUR Y R FARNDON J R NEEDHAM G K 1987Lancet1987,,:1
10Coupled reaction-diffusion waves in an isotherml autocatalytic chemical system显示文摘Merkin J H Needham D J Scott S K 1993IMA J Appl Math1993,50,1:1
11New design of resistance spot welding machine for quality control显示文摘JOHNSON K I NEEDHAM J C 1972Welding Journal1972,51,3:1
12Microbiological monitoring of laboratory mice and biocontainment in individually ventilated cages : a field study显示文摘Brielmeier M Mahabir E Needham J R 2006Lab Anim2006,40,24:1
13Intra-tumoural regulatory T cells:a potential new target in cancer immunotherapy 显示文摘Needham D J Lee JX Bailharz MW 2006Biochemical and Biophysical Research Communications2006,343,3:1
14A manual of the dragonflies of China 显示文摘Needham J G 1930Zoologia Sinica1930,11,1:1
15A manual of the dragonflies of China 显示文摘NEEDHAM J G 1930Zool Sinica1930,11,1:1
16Science and Society in East and West 显示文摘Needham J 1964Science and Society1964,28,4:1
17Simple sequence-based kernels do not predict protein-protein interactions 显示文摘Yu J T Guo M Z Needham C J Huang Y C Cai L Westhead D R 2010Bioinformatics2010,26,:1
18Linear programming for flood control in the Iowa and Des Moines rivers显示文摘Needham J Watkins D Lund J etc 2000Journal of Water Resourses Planning and Management2000,126,3:1
19Impact of CO2-acidified seawater on the extracellular acid- base balance of the northern sea urchin Strongylocentrotus droebachiensis 显示文摘SPICER J I WIDDICOMBE S NEEDHAM H R 2011Journal of Experimental Marine Biology and Ecology2011,407,1:1
20Classical swine fever virus diversity and evolution显示文摘Lowings P Ibata G Needham J 1996J Gen Virol1996,77,:1
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