特征长度

  • 网络Characteristic Length;Y.CHAR
特征长度特征长度
  1. )和临界裂缝尖端张开位移(CTODc),同时利用特征长度l~(ch)研究粗骨料粒径和硅灰掺量对混凝土脆性的影响。文章也给出了相应的弹性模量、抗压强度以及抗拉强度。

    The characteristic length l_ ( ch ) was used to evaluate the effects of coarse aggregate size and silica fume dosage on the brittleness of concrete .

  2. 而当PST夹杂颗粒直径a与微极基体材料的特征长度lm相比很大时,微极理论对有效弹性模量预测的结果将趋近于采用传统Cauchy介质理论预测的结果。

    The classical prediction of effective elastic properties for Cauchy mediums is recovered when the PST particle 's diameter tends to infinity compared to the characteristic length of the micropolar matrix .

  3. 基于特征长度可变的思想,本文改进了Heller的频率预估方程,改进后的频率方程能更好地预估空腔的振荡频率。

    Based on the different characteristic lengths , Heller 's frequency equation was modified .

  4. 模拟结果表明在磁场Hall渗透机制特征长度远远小于等离子体离子的无碰撞趋肤深度的条件下,等离子体内部磁场渗透过程主要由电子流体运动的Hall项来控制。

    The simulation results show that the penetration of magnetic field into plasma is due to Hall field on the condition that the characteristic Hall length is small compared with the ion collisionless skin depth .

  5. 本文对中微子振荡的特征长度作了定义,并给出了中微子振荡的特征长度与混合角及CP破坏无关的证明。

    The definition of the feature length of neutrino oscillation and the proof that the feature length of neutrino oscillation is independent of the mixing angle and CP-violating have been given in the article .

  6. 利用双悬臂梁试件,对裂纹转折现象进行了试验研究和相应的有限元模拟,并对裂纹转折条件以及特征长度γc和断裂韧性各向异性的影响作了对比分析。

    Making use of the Double Cantilever Beam ( DCB ), we have researched the phenomenon of crack turning and done some corresponding emulation by finite element method ( FEM ), and analyses the crack turning condition and influence of the characteristic length ( r_c ) and fracture resistance orthotropy .

  7. 利用半无限介质的空间分辨漫反射的P3的近似解,对光源附近组织的空间分辨漫反射与特征长度之间的关系进行了研究。

    The relation between the characteristic length and the spatially resolved reflectance of tissue close to source was studied by using P_3 approximations expression of semi-infinite turbid medium and spatial-resolved reflectance .

  8. Knudsen数的定义是:宏观的特征长度与微观特征长度(一般为平均自由程)之比。

    The Knudsen number is defined as the ratio of the macroscopic length scale ( hydrodynamic wave-length ) to the microscopic one ( mean free path ) .

  9. 以HSC、MSC和NSC抗压、弯折和断裂试验数据为依据,针对HSC、MSC和NSC的断裂韧度、特征长度及破坏机理展开讨论。

    The fracture toughness , characteristic length and damage mechanism of HSC , MSC and NSC are discussed in the paper , based on the compression , bending and fracture experiment data of HSC , MSC and NSC .

  10. 通过对背景误差方差、特征长度的调整,显著改善了背景误差功率谱的分布特点,使得NMC方法结果与更新矢量方法结果更为吻合。

    After the tuning of background error variance and de-correlation length , results from the NMC-method are closer to those of the innovation vector method , and the analysis results are improved .

  11. 非球形混合颗粒的沉降特征长度

    On Settling Characteristic Dimensions for Mixed Non - spherical Particles

  12. 混凝土断裂韧度、特征长度随强度、龄期变化规律

    Effect of concrete age and strength on its fracture toughness and characteristic length

  13. 均匀电场中电子的特征长度计算

    Calculating Feature Length of Electron in Even Electric Field

  14. 泥沙悬浮的特征长度和悬移质浓度垂线分布

    Characteristic Length and Vertical Concentration Distribution of Suspended Sediment

  15. 讨论了重力场中电子的量子效应,并计算了电子在重力场中的特征长度。

    This paper discuss quantum effect and count feature length of electron in gravity field .

  16. 资料同化中二维特征长度随模式分辨率变化的分析研究

    The Analysis on Variation of Horizontal De-correlation Length with Model Resolution in Data Assimilation System

  17. 从而产生了特征长度。

    Resulting in the characteristic length .

  18. 中微子振荡的特征长度

    The Feature Length of Neutrino Oscillation

  19. 提出一种基于图像传感器的冲针特征长度自动测量系统。

    Proposes a kind of automatic measurement system of punch needle characteristic length based on image sensor .

  20. 研究表明:分形维数和特征长度对轴颈位置分量产生一定的影响;

    The simulation results show that the fractal dimension has some influence on the position of a bearing center .

  21. 为了对股市走势进行分类,我们的难点主要是如何选择股票历史信息的数据特征长度和核函数。

    In order to classify the trend of stock linearly , the main difficulty is how to select features and kernel functions .

  22. 当宏观特征长度远远大于微观特征长度时,流体力学是一种近似非常好的有效理论。

    When the macroscopic length scale is much larger than the microscopic one , the fluid dynamics is a good effective theory .

  23. 结果对比表明,本文方法获得的等效材料常数以及特征长度的结果与文献相同问题的解析解吻合良好。

    The results comparison showed that the present effective constitutive constants and the characteristic lengths agree well with those analytical solutions in literature .

  24. 由单轴拉伸全曲线得到了纤维混凝土的应力裂缝宽度曲线、断裂能及特征长度等。

    The axial stress-crack width curves , fracture energy and brittleness of concrete with fiber were also obtained based on the complete stress-deformation curves .

  25. 另外,还给出了特征长度、变形模量与冰密度和未冻液体含量的试验关系。

    In addition , the experimental relationships of the characteristic length , strain modulus and density , content of the unfrozen solution were given .

  26. 使用全场数值计算得到了明显的压力和质量流量的振荡,该振荡具有大约4倍于蜗壳周向特征长度的波长,且振荡的幅值随压缩机质量流量的减小而增加。

    During simulation with volute , the wavelength of pressure and mass flow oscillations are about four times the volute circumferential length . 6 .

  27. 许多微观实验表明,当变形特征长度在微米或者亚微米量级时,材料表现出强烈的尺寸效应。

    Many microscale experiments have shown that materials display strong size effects when the characteristic length scale is on the order of microns or submicrons .

  28. 得到了晃动的固有频率及各部分阻尼随特征长度、特征运动粘性系数以及特征重力加速的变化关系。

    The relationship between sloshing frequencies , damping of different parts and characteristic length , characteristic kinematic viscosity , characteristic acceleration of gravity is obtained .

  29. 第二章介绍了表面等离子体激元的基本电磁理论和性质,表面等离子体激元的激发方式和四个特征长度参数等。

    The second chapter describes the basic electromagnetic theories and features , such as excitation modes and four characteristic length parameters of surface plasmon polaritons .

  30. 经典连续介质力学的本构关系不包含任何材料内秉特征长度,不能预测材料的尺寸效应。

    The constitutive equations of the classical continuum mechanic possess no any material intrinsic characteristic length , and they cannot predict the size effect phenomena .