查询词典 graded

For the interpolation problems in which the nodes are on one or more algebraic manifolds, we pointed out the interpolation bases of the lowest degree w.r.t.a graded term order and gave a new algorithm. We also gave a estimation for the degree of the interpolation polynomial.

我们针对插值节点位于一个或几个代数流形上的插值问题，从理论上指出了插值问题在某一分次序下最低次的插值基并给出了新的算法，同时也对插值多项式的次数作了估计。

The characteristics and performance of bituminous concrete and bituminous macadam are analyzed,and it is indicated that gap graded bituminous mixture has the merits of thermal stability and durability.

文章对混凝土和沥青碎石的特点及性能进行分析，指出以间断级配组成的沥青混合料具有热稳定性和耐久性的优点。

To distinguish between A, AA, and AAA and Prime graded carcasses, the grader evaluates the level of marbling.

为区分A，AA ，AAA和特级胴体，评等员/分等机评估大理石花纹的程度。

Your composition will be graded according to clarity, accuracy and meaningfulness.

您的组成将根据等级的清晰度，准确性和意义。

This project studies the scale-dependent deformation behavior of the metal matrix composite, the void nucleation and void growth mechanisms at the micron/submicron scale. The main results are:(1) In prophase, growth and coalescence of the void embedded in the graded matrix are analyzed in detailed;(2) Based on the infinite solid model containing a micro-void, coupling effects of the void shape and the void size on the void growth are studied carefully, the results show that it seems to exist a critical equivalent void radius, which is associated with the material length. When radius of a microvoid is close to or smaller than the critical void radius, the micro-void growth rate is essentially eliminated;(3) The coupling effects of the particle shape and size on the mesoscopic stress fields within the particle and matrix are also investigated by introducing the conception of inclusion/matrix interfacial energy. The results show that the stress concentration factors within the particle and on the matrix/particle interface are also strongly size-dependent,so the void nucleation mechanism is size-dependent.(4) By employing a specific orthogonal curve coordinate frame and a 'kernel function' conception, a 'unified method'solving the spheriodal and spherical void problems is suggested; by this unified method, size-dependent plastic potentials of the porous materials containing the spheriodal or spherical voids are obtained, which extend the traditional Gurson model for the spherical void and GLD model for the spheriodal voids to the micron scale.(5) Based on the RVE model containing the spheriodal or spherical particles, the influences of the particle shape and size on the size-dependent mechanical behavior of metal matrix composite are studied.

中文摘要：本项目对金属基复合材料在微细观尺度下的尺度相关变形行为、孔洞形核及长大的机理和模型进行了研究，取得了如下主要结果：1）在前期研究中，探讨了基体的梯度分布对孔洞长大和聚合的影响；2）基于含孔洞的无限大体模型，探讨了孔洞形状和孔洞尺寸对其长大的耦合作用，结果表明：可能存在一个与材料特征长度相关的临界孔洞尺寸，当椭球孔洞的等效半径小于临界孔洞半径时，孔洞的长大受到明显抑制；3）通过引入基体/夹杂界面能的概念，分析了夹杂尺寸、夹杂形状对材料细观应力场的耦合影响，结果表明：颗粒内部和界面上的应力集中因子强烈地依赖于夹杂的尺寸和形状，因此，孔洞的形核机理是尺寸相关的；4）采用一种特殊的正交曲线坐标系和引入"核函数"的概念，"统一"地得到了含椭球和球形孔洞的材料的尺寸相关塑性势，它将传统的Gurson球形孔洞模型和GLD椭球孔洞模型推广到微尺度范围；5）基于含椭球和球形夹杂的体胞模型，初步研究了夹杂形状、夹杂尺寸对金属基复合材料尺寸相关力学行为的影响。

Accurately considering the axial extension and first order transverse shearing deformation, the geo metrically nonlinear governing equations for functionally graded Timoshenko beam subjected to mechanical as well as thermal loads were established. In the analysis it was assumed that the material properties of the beam vary continuously as a power function of the thickness.

在精确考虑轴线伸长和墓于－阶横向剪切变形理论的基础上建立了功能梯度Timoshenko梁受热－机载荷作用时的几何非线性控制方程，其中功能梯度梁的材料性质采用了沿厚度方向按照幂函数连续变化的形式。

First, FEM with nonhomogeneous elements is used to analyze the fracture problem of two dimensional FGM strips with inner cracks or edge cracks in the plane strain condition. The influences of geometric parameters, material graded modality and nonhomogeneity constant of the structure on the stress intensity factors at crack tips are investigated.

首先，本文采用该方法研究了平面应变状态下，含有内部裂纹和边裂纹的二维功能梯度条的断裂问题，分析了结构的几何参数、材料梯度形式和梯度参数对裂纹尖端应力强度因子的影响。

Functionally graded materials, a kind of new type nonhomogeneous materials, have significant applications in the astronautic and aeronautic fields.

功能梯度材料作为一种新型的非均匀材料在航空航天中有着重要的应用价值。

Functionally Graded Materials is that the components and the structure of the material are gradient distribution from one side of the material to the omer.

摘要梯度功能材料，是指在材料设计制造过程中，使构成材料的要素沿着厚度方向由一侧到另一侧呈梯度连续变化，并使材料的性能与功能呈现连续变化的一种新型材料。

Colhounii was tested with mycelium growth inhibition method, and fermentation condition was graded by orthogonal tests.

colhounii的拮抗作用，并通过正交试验优化了其发酵条件。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。