应用数学

As an illustrative example, the evaluation of midship section structure for 10000~40000 dwt bulk carriers in terms of seven performance indices and their satisfaction degrees is carried out.

显见，船舶结构评估是一类所谓结构非分析的问题，不可能建立其精确的数学模型而求解，因此，应用智能分析设计的原理和方法加以处置是适宜的。

The calculations of extreme value for monadic and binary function are essential problem in mathematical analysis , which can apply to calculate maximum and minimum.

摘要求一元、二元函数的极值问题是数学分析中的基本内容，可应用于实践中求最大、最小的问题。

Distribution ratios of complex extraction for different operation conditions were forecasted. Using mass action law, the liquid-liquid equilibrium models of complex extraction of monobasic and polybasic carboxylic acid have been successfully induced, and physical extraction were also considered in the model. On the basis of orthogonal experiments, the models of equilibrium distribution ratios were established. The processes of complex extraction were tested and verified. Comparing experimental data with model values, it could be held that the regression precision of model was rather high and the model supplied fundamental data for industrial amplification and practical use of complex extraction.

采用质量作用定律分析方法，成功地推导了同时考虑物理萃取的一元及多元羧酸络合萃取通用液-液平衡数学模型，并在正交试验基础上建立了磷酸三丁酯络合萃取丁酸、三烷基胺（7301）萃取丁酸、丁二酸、柠檬酸的平衡分配系数模型，从平衡角度对络合萃取过程进行了验证与预测，通过实验数据与模型计算值比较，表明模型的拟合精度较好，从而为络合萃取技术的工业放大与实际应用提供了重要依据。

In present practical industry process, most are nonlinear, multivariant and strong coupling plants, which math model often is difficult to get, so the utilization of the traditional decoupling control methods in its control is limited.

现代工业的生产过程大都是具有非线性、多变量强耦合的复杂工业过程，其数学模型往往难以建立，因此限制了传统解耦控制方法在其控制中的应用。

Let{T_1,T_2,...T_N} be a sequence of nonexpansive mappings that satisfy condition,and let r be a mapping from the set of natural numbers N onto {1,2,..N},which assumes each value infinitely often.

我们主要研究当≠φ随机乘积{S_n}的收敛性。因为这种随机乘积有广泛应用(如在偏微分方程，规划数学，不等式及线性等式)。

Basing on Fuzzy reasoning technology, this paper introduces the work flow of Gas water heater, and the trait of papilionaceous valve.

讨论了模糊推理算法在燃气热水器中的应用，此算法不依赖于被控对象精确的数学模型，主要是通过控制燃气流量即控制燃气蝶阀来达到恒定温度的目的。

This paper studys channel resource reforger in this background, which adopts qualitative analysis and quantitative analysis, applies economy mathematics model of marketing theory linearity regressive model, Hotteline price competition model and profit – loss counterpoise theory.

本文正是基于这样的研究背景，采用定性与定量分析相结合的方法，应用市场营销理论、线性回归模型、豪特林价格竞争模型和盈亏平衡原理等经济数学模型，主要围绕着价格体系调整及中间商空间分布调整两个方面对渠道窜货问题进行了系统探索和研究。

The scope of the revie...

评述仅限于实际应用的范围，并不包括有关的全部文献，本文正讨论了在建立优化数学模型时土建结构在目标函数、约束条件以及设计变量上的一些特点和问题。

The scientificalness is an important problem in the methodology of water quality models,and the reasonable understanding of the mathematical models will effect directly their practical application.

水质模型的科学性是其方法论上的重要问题，对数学模型科学性的理解将直接影响其在实际工作中的应用。

Based on the analysis for the moving process of the spade of the straight-spade-typed tree transplanter and the forced state by applying basic theory and studying methods of the soil-machine system mechanics, mathematical models have been derived for calculating the spading resistance.

本文通过对直铲或树木移植机铲刀下铲过程及受力状况的分析，应用土壤—机器系统力学的基本理论和基本研究方法，建立了该铲下铲阻力的数学模型，并由此提出了减小其下铲阻力的方法和措施。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。