查询词典 modeling

The value of mathematics is lost.This article clarifies the nature and role of mathematical modeling thought,This thought will change abstract into image,change theory into application,and illustrates that this thought is necessary and feasible in higher algebra teaching.Melting modeling thought will be able to solve the...

数学建模思想就是将知识由抽象转化为形象，由理论转化为应用的思想，在高等代数教学中融入数学建模思想是必要的也是可行的，研究与实践表明，数学建模思想对培养人的创新思维及数学应用意识，提高教学质量以及学生的数学素质方面起着重要的作用。

In this paper, based on an optimum difference operator for spatial differential given by Holberg, an optimum difference method of modeling crosswell elastic wavefield is put forward, which adopts the staggered-grid technique and calculates the wavefield at different grid points. When the half length of optimum difference operator is taken as four to six points, the required number of grid points per wavelength equals to three, crosshole elastic wavefield numerical modeling can attain satisfied accuracy.

本文以Holberg提出的一种空间微分的最佳差分算子为基础，采用交错网格技术，提出了一种模拟井间弹性波场的最佳差分法，该方法能在大空间网格点上得到精确的波场值，当最佳差分算子的半长度取4～6个点，每个波长只采3个样点时，井间弹性波场的模拟就可以得到满意的精度，其计算速度比常规有限差分法至少快一个数量级。

On basis of this model, the modeling methods and modeling flow were discussed based on data source of geological observation, drillhole, ichnography and section map.

在此基础上，探讨了在基于地质观测数据、钻孔数据、平面图数据、剖面图数据的断层建模方法和建模流程。

The application of molecular modeling in immunogen and competitor design was emphasized. The advantage of the application of molecular modeling was revealed.

重点阐述了分子模拟在免疫原和竞争原设计中的应用，揭示了采用分子模拟技术进行半抗原设计的优势在于其能够克服目前半抗原设计方法的经验性和主观随意性。

This paper took the high temperature rotation scanning target of the high-current oxygen ion implanter which was designed by the Forty-eighth Institute of CETC as the research object, present modeling and simulation of this target, by utilizing parameter feature modeling and virtual prototype technology.

本文以中国科技集团公司研制的大束流专用强流氧离子注入机的高温旋转扫描靶为研究对象，结合参数化特征建模技术和虚拟样机技术，对高温旋转扫描靶的建模和仿真做了探索性的研究。

Since PMIP (Paleoclimate Modeling Intercomparison Project) launched in 1994, it has got many fruits. Chinese scientists also have done quite a few researches in paleoclimate modeling.

国际古气候对比项目（PMIP，Paleoclimate Modeling Intercomparison Project）开展十多年来，取得了许多成果，我国科学家在古气候模拟方面也做了相当的研究。

To the accuracy and the interpretability of fuzzy model in complex systems modeling, a novel modeling method is presented by combining the characteristics of PNC2 clustering with the genetic algorithm.

针对在复杂系统的模糊建模中，模型的精确度和可解释性很难同时得到满足的问题，利用PNC2聚类算法和遗传算法各自的特点，提出了一种新的建模方法。

From the point of view of inverse problems in mechanics, two trains of thought for solving ICS/IBS computative problems, i. e: by means of intelligence computation method without geometrical modeling and by the aid of finite element inverse analysis method with geometrical modeling, are expounded.

从力学反问题的角度出发，阐述了智能桥梁结构的智能计算问题的两种思路——无模型力学反问题的计算智能法解决思路以及有模型力学反问题的有限元法解决思路。

In comparison of various parametric modeling methods, the method and reliable steps of involute drum gear modeling are proposed.

通过对现阶段各种参数化造型的方法进行比较，从计算机实现的角度对渐开线鼓型齿轮设计提出了可行的方法与步骤。

Modeling the use of least squares, and maximum likelihood estimation method of modeling.

有使用最小二乘的建模，有极大似然估计建模的方法。

Salt is good, but if the salt becomes flat and tasteless, with what do you season it?

14：33 盐本是好的，盐若失了味，可用什么叫它再咸呢？

He reiterated that the PLA is an army of the people under the leadership of the Communist Party of China.

他重申，人民解放军是在中国共产党领导下的人民军队。