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Abstract: In this paper,the efficient stress method is used as main means,while the Railway Engineering Anti-Earthquake Design Specification and the dynamic triaxial test are used as additional means.The authors analyze the ground layer liquefaction of sh
中文意思:
文摘:以有效应力原理的有限元计算分析为主、铁路工程抗震设计规范及室内动三轴实验为辅,对修建在粉土或粉细砂层中的盾构隧道进行了两种不同埋深情况下的液化分析,得出了埋深不同液化区出现区域不同的结论,并提出隧道抗液化的合理埋深。


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Abstract: In this paper,the cellular glass was introduced by using waste glass as raw material,added a little foaming addition and chemical material,with low-temperature (760-810℃)foaming technigue.The influence has been studied between material's composi 文摘:利用回收的废玻璃为泡沫玻璃的主要原料,添加少量的发泡剂和一些其它化工原料,采用低温(760~810℃)发泡工艺,探讨了配合料的配方组成和不同的发泡工艺制度对泡沫玻璃性能的影响,通过比较,得出了合理的泡沫玻璃的配方及发泡工艺制度;试制出的泡沫玻璃具有容重低,抗压强度大,烧成周期短,易于控制的特点。
Abstract: In this paper,the complex prescription of ATMP,Molybate and Polyaerylamide is optimized under the simulated industrial water quality con ditions,through the corrupting experiment of carbon steel flats and the inhibiti on experiment of conc entra 文摘:在模拟工业水质条件下,通过静态碳钢挂片腐蚀实验及浓缩水阻垢实验,以加权单纯形法优化了氨基三甲叉瞵酸(ATMP),钼酸铵及聚丙烯酰胺三种药剂的复合配方.实验表明,优化所得配方在较低的药剂浓度条件下达到了较高的缓蚀和阻垢效果,从而降低工业成本,并且实验时间短,实验成本低.
Abstract: In this paper,the contour evolution method of numerically-controlled electrochemical machining is described. 文摘:阐述了数控展成电解加工中展成运动的实现方法。
Abstract: In this paper,the double-speed synchronous sampling method is introduce d to the power system harmonic measurement, and the corresponding algorithm mode l of DFT is deduced. 文摘:将双速率同步采样法用于电力系统谐波测量,导出相应的DFT计算模型。
Abstract: In this paper,the effect of pre-stress on peen-forming is studied by experiments,the results show that pre-stress can change the relationship between pre-deformation and pre-stress shot peen deformation,and that 0.05%~0.1%pre-strain is compareti 文摘:对预应力喷丸成形进行了试验研究,指出预应力可以改变其对应的预变形与预应力喷丸变形之间的大小关系,在以改善喷丸型面纵向直线度为主要目的的预应力喷丸成形中,预应变取值0.5/1000~1/1000较为适宜。
Abstract: In this paper,the efficient stress method is used as main means,while the Railway Engineering Anti-Earthquake Design Specification and the dynamic triaxial test are used as additional means.The authors analyze the ground layer liquefaction of sh 文摘:以有效应力原理的有限元计算分析为主、铁路工程抗震设计规范及室内动三轴实验为辅,对修建在粉土或粉细砂层中的盾构隧道进行了两种不同埋深情况下的液化分析,得出了埋深不同液化区出现区域不同的结论,并提出隧道抗液化的合理埋深。
Abstract: In this paper,the feasibility of the separation of nano-CaCO3 slurry is studied and the operating parameters affecting the process are investigated. 文摘:论证了用板框过滤纳米碳酸钙悬浮液的可能性,讨论了操作条件对该分离过程的影响,并指出了这种方法存在的不足及改进的方向。
Abstract: In this paper,the feature of stamping part is divided into form feature,tolerance feature,management feature and material feature.The definition of theses feature and the relationship between them are presented.Then,a feature-based product defin 文摘:针对冲压件特点,将冲压件特征分为形状特征、精度特征、管理特征及材料特征,给出了这些特征的定义并描述了它们之间的联系,提出了基于特征的冲压件定义模型;然后对冲压件形状特征的表达及建模方法进行了详细的描述,为后续的冲压工艺设计提供了坚实的基础。
Abstract: In this paper,the kinematically admissible velocity fields are established by using the metal flow patterns based on the experiments,and the configuration dimensions of billet and the curves of Load-stroke in precision forging process for spur g 文摘:本文利用有实验根据的变形流动模式建立动可容速度场,利用上限法模拟用实心坯料精锻直齿圆柱齿轮时坯料的外形尺寸变化和力—行程曲线,所得结果与实验测定值很一致,可供冲挤精锻工艺设计参考。
Abstract: In this paper,the laser transformation hardening(LTH)system which used for Die and Mould and laser processing methods are introduced.The relationship between depth of hardening layer,wear resistance properties and laser hardening processing para 文摘:介绍了用于模具表面的激光强化加工系统和激光强化工艺方法,讨论了激光强化模具表面的硬化层深度和耐磨性能与激光强化工艺参数之间的关系,采用激光强化技术能大幅度提高模具的使用寿命。
Abstract: In this paper,the lawful metrological units were compared with the abrogated units in analytical chemistry,and the common mistakes in the application of the lawful metrological units were discussed.Some correct examples in the application of the 文摘:对分析化学领域中常见的法定计量单位与其对应的废弃形式进行了比较,指出了应用中常见的错误,并汇集了该领域中有关计量单位表述的正确范例。
 
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