- 更多网络例句与可移种性相关的网络例句 [注：此内容来源于网络，仅供参考]
-
The main factors affecting the soil-structure interface behaviors were found experimentally and theoretically, including: 1 the thickness of the interface that is five to six times the average grain size of the soil; 2 the aeolotropy of interface, which is responsible for anisotropic response of the stress-strain response of the interface; 3 two physical states, including crashing and compression of the soil near the structure surface, which govern the stress-strain response of the interface strongly; 4 two shear deformation components due to sliding and constraint of the structure surface relative to the soil respectively, which forms the deformation of the interface; 5 the volumetric strain due to dilatancy, which is found to be composed of a reversible dilatancy component and an irreversible dilatancy component. 4. A unified constitutive model of the interface, based on new elasto-plasticity damage theory, was developed. It was confirmed to be effective for the conditions considering monotonic and cyclic shearing, coupling effect of shear and volumetric strains, evolution of physical state, micro-structure aeolotropy of the soil and the resulting aeolotropy of the interface as well as the three normal boundary conditions stated above. 5. 2D and 3D finite element formulations of the present model were derived and incorporated into the FEM codes. They were applied to the evaluation of practical engineering problems with different typical interfaces between soil and structure. The new model was shown to be reasonable and effective.
确定了粗粒土与结构接触面厚度约为5～6倍的平均粒径，首次揭示了接触面的细观结构异向性以及由此所引起的宏观剪切异向性，发现了在单调和往返剪切荷载作用下土颗粒破碎和剪切压密两种物态变化机制共同支配着接触面力学性质的变化，通过细观分析证实了接触面的变形可分解为一般同时发生的土与结构交界面上的滑移变形以及结构面位移约束范围之内土体本身的剪切变形两部分，观测到接触面受剪时表现出明显的相对法向位移，并可分解为可逆性和不可逆性两个分量；(4)建立了第一个能够统一地描述单调与往返剪切特性、剪应变与体应变耦合特性、细观结构和宏观剪切异向性以及土颗粒破碎等物态变化特性的土与结构接触面弹塑性损伤本构数学模型，并采用多种法向边界条件复杂加载路径的试验成果验证了新模型的合理性和有效性；(5)提出了新模型的二、三维有限元格式并结合实际边值问题进行了应用计算分析，比较了不同接触面本构模型对计算结果的影响，证实了新模型及其有限元格式不仅能够合理地描述土与结构接触面的主要力学特性，还能够较好地反映土体与结构物在接触面处的滑移、脱开等不连续现象。
-
By measuring the longitudinal dispersivity α〓 of several sandy media with different grain size distribution in different transform distance L through sandy column; the formula of α〓=α〓 is obtained, this provides a method of solving scale-effect in the numerical model and in the practical application.
3通过砂柱试验测定了几种粒径分布不同的砂性介质在不同运移距离处的纵向弥散率，并得到计算不同粒径砂性介质随运移距离变化的纵向弥散率公式，在实际应用和数学模型中可作为解决尺度效应问题的一种方法
- 更多网络解释与可移种性相关的网络解释 [注：此内容来源于网络，仅供参考]
-
Gnathostoma spinigerum：棘颚口线虫
临床上出现蛋白尿颚口线虫病(gnathostomiasis)是我国较为少见的一种蠕虫蚴移行症,病原体为棘颚口线虫(Gnathostoma spinigerum)的第三期幼虫. 临床上以移行性皮下肿块、血液嗜酸性粒细胞增多为特点. 此外,棘颚口线虫的第三期幼虫还可侵犯深部组织和器官,
-
stenoses：狭窄
用都卜勒频移信号能够绘出血管行径路线图,医生可依此定出如颈动脉等血管发生闭锁(occlusion)或狭窄(stenoses)的位置. 这是一种快速、无伤害性且无痛的诊断法;如改用X光来检查,就必须注射有害身体的造影剂了.