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121篇 您的检索式:作者名="O.A."
    题名 作者 年代 出处 被引量
1俄罗斯第三代高等教育国家标准:背景、框架、特点显示文摘俄罗斯第三代高等教育国家标准的核心是对基础教育大纲的掌握结果、结构和实施条件提出的要求。该标准的制定以能力素养观为基础,要求培养学生的一般文化能力素养和职业能力素养,目标指向以学生发展为本和跨学科能力的培养。基础教育大纲中三类学科的课程分为国家统一设置的基础部分和高校自主设置的可变部分,体现了统一性与自主性相结合的原则。新标准实施的瓶颈是能力要素结构的构建和能力评价。李艳辉 O.A.玛什金娜 2014高等教育研究2014,35,2:11
2俄罗斯大学生的兼职情况调查显示文摘O.A.巴伊沙科娃 蓝瑛波 2006国外社会科学2006,,2:5
3SUPERPLASTICITY AND SOLID STATE BONDING OF TITANIUM ALLOYS显示文摘Experimental results related to solid state weldability of superplastic titanium alloys are presented. A correlation between superplastic flow and enhanced solid state weldability was established. It has been experimentally shown that a drop in the lower superplastic flow temperature with decreasing mean grain size provides an opportunity to decrease the temperature at whicmethods for titanium alloys.R. Ya. Lutfullin, O.A. Kaibyshev, R.V. Safiullin, O.R. Valiakhmetov and M.H. Mukhametrahimov Institute for Metals Superplasticity Problems, Russian Academy of Sciences, Ufa 450001, Russia 2000Acta Metallurgica Sinica(English Letters)2000,13,2:4
4一种新型冲击压入式单牙轮钻头的试验研究显示文摘文章介绍了一种新型小尺寸钻头 ,它主要由一个偏置的多锥形牙轮和一个圆柱形滚轮及两个牙掌组成。其工作原理不同于球形单牙轮钻头 ,但是与三牙轮钻头的工作原理相同 ,主要依靠钻头牙轮牙齿的冲击和压入来破碎岩石 ,并且由圆柱形滚轮来修整井壁 ,还有两个靠近井底的喷嘴。与相同钻头尺寸的三牙轮钻头相比 ,该新型钻头的牙轮尺寸和轴承尺寸要大得多 ,因此 ,它可以承受较大的钻压 ,从而可以提高轴承和牙轮的使用寿命 ,进而提高机械钻速和钻头的使用寿命。文中介绍了在试验台上的试验情况和数据 ,并与三牙轮钻头进行了比较 ,得出了应用该钻头的重要结论。黄万志 МарковO.A. 吴华 2000天然气工业2000,20,2:4
5Corrosion behaviour of AZ31 magnesium alloy with different grain sizes in simulated biological fluids显示文摘M. Alvarez-Lopez María Dolores Pereda J.A. del Valle M. Fernandez-Lorenzo M.C. Garcia-Alonso O.A. Ruano M.L. Escudero 2009Acta Biomaterialia2009,,5:3
6含油气区基岩中储集岩的形成显示文摘O.A.шнип 李大艮 1997海洋地质译丛1997,,1:3
7Mooring System Optimisation and Effect of Different Line Design Variables on Motions of Truss Spar Platforms in Intact and Damaged Conditions显示文摘This paper presents the effect of mooring diameters, fairlead slopes and pretensions on the dynamic responses of a truss spar platform in intact and damaged line conditions. The platform is modelled as a rigid body with three degrees-of-freedom and its motions are analysed in time-domain using the implicit Newmark Beta technique. The mooring restoring force-excursion relationship is evaluated using quasi-static approach. MATLAB codes DATSpar and QSAML, are developed to compute the dynamic responses of truss spar platform and to determine the mooring system stiffness. To eliminate the conventional trial and error approach in the mooring system design, a numerical tool is also developed and described in this paper for optimising the mooring configuration. It has a graphical user interface and includes regrouping particle swarm optimisation technique combined with DATSpar and QSAML. A case study of truss spar platform with ten mooring lines is analysed using this numerical tool. The results show that optimum mooring system design benefits the oil and gas industry to economise the project cost in terms of material, weight, structural load onto the platform as well as manpower requirements. This tool is useful especially for the preliminary design of truss spar platforms and its mooring system.O.A. Montasir A. Yenduri V.J. Kurian 2019China Ocean Engineering2019,33,4:3
8长期浸水引起石膏土CBR减小显示文摘研究石膏含量为 64 %的压实石膏土长期浸水对加利弗尼亚承重系数 (CBR)的影响。依据ASTM(D1 883 -87)规范 ,准备 1 6个以最优含水量压实到AASHTO干密度的 95 %的试样。分为两组 ,每一组在 89N超载负荷下分别浸水 0 ,4,7,1 5 ,3 0 ,60 ,1 2 0 ,1 80d。浸水池中的水要不断更换以避免石膏过饱和。试验显示CBR在浸水期间急剧减小 ,第一个星期尤为明显。之后CBR以较小的速度减小 ,直到 6个月以后土壤强度趋于恒定。随着浸水时间的延续 ,土壤中总的溶性盐和石膏成分的减少与浸水期间CBR的减小完全一致。研究表明 ,4d的浸水时间对此类土壤来说 。S.S.拉索克 O.A.伊尔雅拉比 荣亚红 2000水利水电快报2000,21,6:2
9Corrosion behaviour of AZ31 magnesium alloy with different grain sizes in simulated biological fluids显示文摘M. Alvarez-Lopez María Dolores Pereda J.A. del Valle M. Fernandez-Lorenzo M.C. Garcia-Alonso O.A. Ruano M.L. Escudero 2009Acta Biomaterialia2009,,5:2
10Effect of drying methods on the physical properties and microstructures of mango (Philippine ‘Carabao’ var.) powder显示文摘O.A. Caparino J. Tang C.I. Nindo S.S. Sablani J.R. Powers J.K. Fellman 2012Journal of Food Engineering2012,,1:2
11Achieving high strength in commercial Mg cast alloys through large strain rolling显示文摘M.T. Pérez-Prado J.A. del Valle O.A. Ruano 2005Materials Letters2005,,26:2
12Biochar for the mitigation of nitrate leaching from soil amended with biosolids显示文摘O.A. Knowles B.H. Robinson A. Contangelo L. Clucas 2011Science of the Total Environment2011,,17:2
13A comparison of the critical impeller speed for solids suspension in a bench-scale and a pilot-scale mechanical flotation cell显示文摘O.A. Lima D.A. Deglon L.S. Leal Filho 2009Minerals Engineering2009,,13:2
14High performance liquid chromatography–tandem mass spectrometric assay of dexmedetomidine in plasma, urine and amniotic fluid samples for pregnant ewe model显示文摘Z. Cui D.S.-L. Chow L. Wu D.A. Lazar R. Rodrigo O.O. Olutoye O.A. Olutoye 2014Journal of Chromatography B2014,,:1
15城市规划中的经济学——使用、技能、供给显示文摘本文介绍美国七十年代经济学在城市规划中的应用。并指出若干被忽略的,但可能对规划有重大贡献的基本经济思想。O.A.戴维斯 杨志中 2009国际城市规划2009,24,S1:1
16Computing of gas flows in micro- and nanoscale channels on the base of the Boltzmann Kinetic equation显示文摘Yu.A. Anikin E.P. Derbakova O.I. Dodulad Yu.Yu. Kloss D.V. Martynov O.A. Rogozin P.V. Shuvalov F.G. Tcheremissine 2010Procedia Computer Science2010,,1:1
17Anti-inflammatory, anticholinesterase, antioxidant and phytochemical properties of medicinal plants used for pain-related ailments in South Africa显示文摘O.A. Fawole S.O. Amoo A.R. Ndhlala M.E. Light J.F. Finnie J. Van Staden 2009Journal of Ethnopharmacology2009,,2:1
18A prospective study of hemodialysis access-related bacterial infections显示文摘Ibrahiem Saeed Abdulrahman Samir H. Al-Mueilo Huda A. Bokhary Gani O.A. Ladipo Abdulla Al-Rubaish 2002Journal of Infection and Chemotherapy2002,,3:1
19Production of hard and heat-resistant coatings on aluminium using a plasma micro-discharge显示文摘S.V. Gnedenkov O.A. Khrisanfova A.G. Zavidnaya S.L. Sinebrukhov A.N. Kovryanov T.M. Scorobogatova P.S. Gordienko 2000Surface & Coatings Technology2000,,1:1
20Application of distinct element method in dynamic analysis of high rock slopes and blocky structures显示文摘Zhang Chuhan O.A. Pekau Jin Feng Wang Guanglun 1997Soil Dynamics and Earthquake Engineering1997,,6:1
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