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- The method can be adopted to research micro dynamic behavior and changing of friction surface and to show mechanism of abrasive wear. 为研究摩擦表面上的微观动态行为与变化，认识磨粒磨损机理，提供了一种基于微观数值模拟的途径和方法。
- In order to analyze a micro cutting process of abrasive wear by means of molecular dynamics simulation, the principle, model and solving algorithm of molecular dynamics simulation of micro cutting process were discussed. 摘要针对磨粒磨损中微观切削过程，研究了分子动力学模拟的基本原理、磨粒微观切削过程的分子动力学模拟模型和数值模拟势法。
- Abrasive wear may be defined as damage to a surface by a harder material. 磨粒磨损可定义为较硬的材料以一个表面的破坏。
- In the same time, abrasive wear is the major failure reason in mining machines. 在矿山机械中，磨粒磨损(它包括冲蚀磨损、磨料磨损和微动磨损)是其磨损失效的主要原因。
- Micro scale chemical experiment has been widely used in recent 20 years.It is characterized by the microminiaturization of instrument,and less reagent. 微型化实验是20多年来国内外广泛开展的一种化学实验方法,其特点是仪器微型化和试剂用量少。
- The density evolutions of normal bond and tangent bond in micro scale determined different characters of material failure in macro scale respectively. 微观上法向键和切向键的密度衰减分别决定着材料不同的宏观全过程破坏特征。
- The advan-tage of organic petrology lies in analysing characteristics on micro scale,origin and evolu-tion of sedimentary organic matter with respect to hydrocarbon generation. 本文评述了有机岩石学在研究有机成熟度、有机质类型、生烃组分和成烃作用、烃类排出运移和聚集等方面的现状和发展方向。
- NEW AUSTENITE-BAINITE STEEL WITH NODULAR EUTECTICS AND ITS IMPACT ABRASIVE WEAR RESISTANCE? 新型团球状共晶体奥氏体贝氏体钢及其抗冲击磨料磨损特性?
- The result shows that in micro scale,inhomogeneous flow of material is obviously emerged,which is more severe with the increase of grain size and stroke. 结果表明,微小尺度下材料呈现出明显的非均匀流动,且这一非均匀流动随晶粒尺寸和变形量的增大而剧烈。
- Inadequate resistance to abrasive wear will lead to rapid loss of clearances and drop in pump performance. 如果耐磨蚀能力不足，则将导致间隙迅速增大和泵性能下降。
- Forces usually neglected in macro fluidics could play important roles in micro flow thus some classic theoretical models and reduced conditions no longer work in micro scale. 在微尺度下，一些在宏观尺度下被忽略的作用力和效应起了重要作用，而常规分析中的理论和一些简化条件，也不再能解释流动现象。
- Its main wear mechanisms are plastic smearing, abrasive wear and fatigue spalling. 其磨损机理主要有塑性涂抹、磨粒磨损和疲劳剥落。
- In dry sliding the abrasive wear resistance and plough resistance of SR sample were less than that of CR one. 结果表明，在干摩擦条件下深度轧制纯铁的抗磨粒磨损性能较普通轧态纯铁差，抗犁削能力也较弱；
- The result showed that adhesive wear and abrasive wear were the dominant mechanisms under unlubricated conditions. 在受流状态下逐渐转化为以粘着磨损和电侵蚀磨损为主；
- A database system of wear resistance materials(AWRMDS) is created by using Delphi software on the basis of abrasive wear working system(AWWS). 以磨料磨损工作系统(AWWS)为基础;采用delphi软件建立了耐磨料磨损材料数据库系统(AWRMDS).
- For micro scale length between the two planes, the flow called microflow,often behaviors differently from the prediction of the conventional form of theNavier-Stokes (N-S) equations. 首先,随着两平板间间距尺度的减小,平板间流动(称作微流动)的行为将偏离宏观流动。
- Feynman, the famous American physicist and the Noble Prize winner, said that if we can control the arrangement of materials at a micro scale, the physical characteristic will be enlarged intensively. 正如美国著名物理学家、诺贝尔奖获得者Feynman所言：“如果我们得以在细微尺度上控制物质的话，毫无疑问，这将使材料所具有的物性范围大为扩充。”
- Both of them are characterized by abrasive wear, but the Ti40Zr40Ni20 bulk quasicrystal manifests abetter friction resistance. zr4oNiZo准晶的耐磨性更好。 Ti40Zr40NiZ。
- The abrasive wear performance of plasma and detonation sprayed Cr 3C 2 25%NiCr coating were investigated with Pin Disc Wear Testing Machine. 在销盘式磨料磨损试验机上 ,对等离子喷涂 (APS)及爆炸喷涂 (DS)的Cr3C2 2 5%25NiCr涂层的耐磨料磨损性能进行了研究。
- Methods:Detected micro scale serum bilirubin for newborn infants born in our hospital during the period of 2000.1 to 2001.9.Compared the incidence of hyperbilirubinemia within two neonatal groups,that is caesarean birth group and natural birth group. 方法 对我院 2 0 0 0年 1月至 2 0 0 1年 9月期间在产科病房出生的新生儿进行微量血清胆红素测定 ,比较剖宫产娩出的新生儿与非剖宫产娩出的新生儿发生高胆红素血症的情况。
