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5篇 您的检索式:作者名="W.B.Lee"
    题名 作者 年代 出处 被引量
1Design of a weighted and informed NK model for intellectual capital-based innovation planning显示文摘Irene Y.H.Fan Rongbin W.B.Lee 0,,39:1
2相位法在面内应变分析中的应用显示文摘本文提出一种新的面内应变求解方法——相位求解法。该方法直接利用变形体内部的栅线图象,通过快速傅里叶变换、频谱分析、相位展开及应变计算,最后求得全场的应变分布。该方法数据处理自动化程度高,信息量大,且具有较高的求解精度。高振艳 钟约先 曹起骧 W.B.Lee C.Y.Tang 1997塑性工程学报1997,4,1:1
3Nanophase Decomposition of a Zn-Al Based Alloy Zn_(68)Al_(10)Cu_(22)显示文摘The nanostructural evolution and phase transformation of the films of a Zn-Al based alloy (Zn68Al10Cu22 in wt pct)have been studied by using X-ray diffraction and scanning electron microscopy. Nanostructural thin films of the Zn-Al based alloy were produced by using an electron beam deposition technique. It was found that a nanocrystalline phase η'n had a strong preferred crystal orientation at (0002) crystal planes in the as-deposited films. During ageing at 220℃, the decomposition of nanophase η'n started with clustering to form Z-zones, and transitional phase, which was accompanied by an eutectoid decomposition of the η'n phase: η'n→β'eut + T'. Decomposition, such as clustering and the formation of the Z-zones, and the transitional phase etc. were observed in the nanophaseβ'eut. The formation and the decomposition of the transitional phase of micrometers in size were involved in the decomposition of the main nanophase η'n. The mechanism of the Z-zones formation and the stability of nanophases were discussed.Y.H.Zhu W.B.Lee S.To 2004Journal of Materials Science & Technology2004,20,6:0
4Structural Changes ofαPhase in Furnace Cooled Eutectoid Zn-Al Based Alloy显示文摘Furnace cooling is a slow cooling process. It is of importance to study structural evolution and its effects on the properties of alloys during the furnace cooling. Decomposition of aluminium richαphase in a furnace cooled eutectoid Zn-Al based alloy was studied by transmission electron microscopy. Two kinds of precipitates in theαphase were detected in the FCZA22 alloy during ageing at 170℃. One was the hcp transitionalα″m phase which appears as directional rods and the round precipitates. The other was the fccα′m phase. It was found that the transitional phaseα′m grew in three preferential directions of <110>, <011> and <101>. The orientation relationship between theαphase and transitional phaseα′m was determined as (022)α′m (fcc)//(022)α(fcc), [111]αA′m(fcc)//[233]α(fcc). The non-equilibrium phase decomposition of theαphase is discussed in correlation with the equilibrium phase relationships.Y.H.Zhu K.C.Chan G.K.H.Pang T.M.Yue W.B.Lee 2007Journal of Materials Science & Technology2007,23,3:0
5剩余炮点剖面偏移显示文摘我们已经开发了一种剩余炮点剖面偏移技术,该项技术包括倾角校正后的剩余正常动校正(NMO)和深度再拉伸(restretching).倾角校正后的剩余正常动校(NMO)公式和深度再拉伸公式由一般的 Al-Yahya 剩余 NMO 公式导出.应用倾角校正剩余 NMO 公式,比剩余 NMO公式中没有倾角校正项更能精确地估算速度误差。剩余炮点剖面偏移以类似于由级联剩余速度分析、剩余 NMO、叠加和深度拉伸的常规处理方式,可应用于叠前偏移资料中.使用剩余偏移,我们或者能够避免原始叠前资料的再偏移,或者能生成满意的图象而减少所需的迭代次数。在工作站上就足以有效地完成剩余偏移.本文用合成数据和野外资料的例子说明了本法可对某些地质情况(尖灭和盐层顶板与底板)的成象进行重大改进.W.B.Lee 张仪宁 1993石油物探译丛1993,,1:0
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