查询词典 numerical

Key words: mining engineering; bulgy; granite; soft rock roadway; whole supporting; numerical simulation

关键 词：采矿工程；膨胀；花岗岩；软岩巷道；整体支护；数值模拟

And further more, calculate the area of bulrush based on the changes of time-serials MODIS-NDVI. The numerical value is close to realistic value.

在此基础上，利用基于时序的芦苇植被指数变化，提取了洞庭湖芦苇的生长范围，最后与TM 和实测数据对比，结果比较一致。

In the article, the numerical simulation software ANSYS is used to analyze the working stress distribution in butt joint and the effect of the geometric parameter on the stress concentration efficiency .

摘要通过数值模拟软件ANSYS分析对接接头的工作应力分布，找出了对接接头的几何参数对应力集中系数的影响。

This article studies CFRP through the finite element numerical simulation (carbon fiber to strengthen compound materials) the butt weld steel structure weary performance reinforcement effect.

本文通过有限元数值模拟研究CFRP对焊接钢结构疲劳性能的加固效果。

The numerical examples show the proposed method is efficient and accurate by comparison to the analytical solutions and the measured results.

通过与解析计算结果和测量结果比对，数值算例证明了该文方法的正确性和有效性。

The numerical results were verified by comparison with the results of experiments.

将数值计算结果与试验结果进行比较，吻合较好。

Numerical Control Machine Returning Reference point by??rule and line,Affect Stability Of Machine,And that,Affect Precision of Machine.

数控机床回参考点的准确性，不但影响机床的稳定性，更重要的还影响加工精度及加工尺寸的稳定性。

The validity of our method is demonstrated by means of some numerical andexperimental results.

数值模拟计算和与别人用其它方法得到的结果比较证明了这种方法的合理性。

In this paper we combining connecting tunnel project of Subway Line 4 at Xidan-lingjing bystreet in Beijing. To aim at the difficulties of building large-span connecting tunnels in the fine sand layer, through roads and underground pipelines, construction nearby buildings and other project difficulties. Using theoretical analysis, numerical simulation, field tests and other research methods to comprehensive and systemic research the stratum deformation mechanism and process control techniques of shallow excavation method, and a series of results were obtained. Firstly, use the stochastic media theory to analyze the stratum deformation mechanism, concretely analyze the analytic equation of surface horizontal displacement and deformation which were caused by the excavation of single-hole and double-hole tunnel, and further discussion on ground settlement, vertical deformation, surface horizontal displacement and horizontal deformation. Analyzing the main influence factors of surface displacement, and combined with practical work to proof the theory which was applied to shallow buried single-hole tunnel in fine sand layer was scientific.

本文结合北京地铁四号线西单～灵境胡同渡线隧道工程，针对在粉细砂地层中修建大跨渡线隧道，下穿道路和地下管线，临近建筑物施工等工程难点，利用理论分析、数值模拟、和现场监测等多种研究手段，对浅埋暗挖隧道地层变位机理及控制技术，深入地进行全面和系统的研究，并取得以下成果：(1)引入随机介质理论，对地层变位机理进行了分析，具体分析了单、双孔隧道开挖引起的地表位移及变形的解析方程，并深入探讨了地表沉降、垂直变形、地表水平位移和水平变形的特点，同时分析了影响地表位移的主要因素，并结合工程实例，佐证该理论应用于粉细砂地层浅埋暗挖单孔地铁隧道的科学性。

Seventhly, a series of experiments and projects were carried out for verifying the previous theory. First, the cable force control test of reticulated shell-string structure in 2.2m×4.6m was conducted using the arithmetic presented in the paper. Second, the numerical analysis during construction, the adjustment of cable forces and the changing of cable of the Beijing North Railway Station were conducted.

为了进一步验证本文前几章有关预应力空间钢结构索张拉计算方法的正确性，本文进行了一系列的试验研究，包括：用提出的基于索原长反分析法对一2.2m×4.6m的小型张弦网壳进行索张拉成形的试验研究；对北京北站进行了模型施工过程分析、模型索张拉力的调整、换索试验研究。

Recall that, in the Kolmogorov axiomatization, measurable sets are the sets which have a probability or, in other words, the sets corresponding to yes/no questions that have a probabilistic answer.

延期开工的Kolmogorov宣布要衡量所有套职能有限许多坐标限制在于衡量子寅。换句话说，如果是/否的问题回答f可看的价值观念在许多最有限坐标，然后它有一个概率的答案。

The experimental results showed that the algorithm can filter singular points and remain fixity of the target edge.

实验表明：基于模糊理论的图像智能滤波方法比常规图像滤波方法运算量小，它既能去除奇异点，又能保持图像中目标的边缘不变性，具有很好的滤波效果。