An extended hyperbolic mild-slope equation, which can take such terms as wind input, bottom friction and nonlinearity of wave into account, here has been deduced into a parabolic one in the form of a series of governing equations described with complex amplitude. It became a complete wave model when integrated with corresponding physical and imaginary boundaries, and can be solved through the improved Crank-Nicholson or the well known Alternating Direction Implicit difference method, both of which can accelerate the convergent speed , expand limitation of the mathematical method and improve the quality of the solution.

本文基于綜合考慮底摩阻可以看黄在线观看久、風(fēng)能輸入及非線性影響的推廣雙曲型緩坡方程，將其進(jìn)行轉(zhuǎn)換一级黄色av，產(chǎn)生一個(gè)演變方程欧洲真人无码永久在线，其復(fù)振幅控制方程為拋物線性，并采用ADI差分格式黄片毛片av、改進(jìn)的Crank-Nicholson格式及相應(yīng)的物理和虛擬邊界條件進(jìn)行求解欧美喷水网站，以提高數(shù)值模擬的適用性、數(shù)值計(jì)算的穩(wěn)定性香蕉视频aaaa、收斂速度及精度。

In the present paper, based on the thorough analysis and research of the mathematical model for the flow field and temperature field, the filling and solidification process of aluminous hub was successfully simulated by using ANSYS software.

本文以大型有限元仿真軟件ANSYS為工具欧美福利午夜，在對(duì)鑄造過程流場(chǎng)亚洲精品456在线播放第1集、溫度場(chǎng)的數(shù)學(xué)模型進(jìn)行深入分析研究的基礎(chǔ)上，成功的模擬了鋁合金輪轂類鑄件低壓鑄造的充型凝固過程国内下药视频在线观看，并根據(jù)模擬結(jié)果對(duì)鑄件可能產(chǎn)生的缺陷及部位進(jìn)行了預(yù)測(cè)538在线视频免费观看国产，完成了利用ANSYS軟件來檢測(cè)、校核模具設(shè)計(jì)和工藝安排的工作美女露出乳头和私处和男人日逼。

It also discussed how to amend the mathematical model in application.

同時(shí)也對(duì)如何準(zhǔn)確的利用數(shù)學(xué)模型進(jìn)行了探討狼友在线视频在线播放。

This paper researches on optimum design of large crude oil tanker structures with mathematical programming, aiming at the minimum weight of the cargo tank amidships.

本文采用數(shù)學(xué)規(guī)劃的手段，對(duì)大型油船中部艙段結(jié)構(gòu)進(jìn)行了以減輕結(jié)構(gòu)重量為目標(biāo)的優(yōu)化設(shè)計(jì)研究美女操逼A∨。

The mathematical model for formulation design and optimization of expanded ammonium nitrate rock explosive is also studied.

文中論述了含C日韩黄色AV网、H、O久久久久国产精品熟女、N元素的工業(yè)炸藥配方設(shè)計(jì)數(shù)學(xué)模型的建構(gòu)方法国产精品手机在线，研究了巖石膨化硝銨炸藥配方設(shè)計(jì)及最優(yōu)化的數(shù)學(xué)模型，給出了巖石膨化硝銨炸藥配方設(shè)計(jì)及最優(yōu)化數(shù)學(xué)模型的計(jì)算機(jī)計(jì)算結(jié)果xx69欧美。

A mathematical model of the medium components was estabiished by using compauter to analyse and analogize the experimental results.

利用計(jì)算機(jī)對(duì)試驗(yàn)結(jié)果進(jìn)行運(yùn)算和模擬图片区自拍偷拍，建立了培養(yǎng)基各組份及其配比對(duì)產(chǎn)量影響的數(shù)學(xué)模型。

The physical and mathematical models of underground gasification are erected; a temperature field in the district of gasification is set up; the instance analysis on the computer analogue simulation machine has been carried out; systematic analysis and research on the variable rules of temperature and different components has also been taken and some important resultants about the best position for drilling and the relationship between adjustment and control and gasification stability have gained, which opens up a new field for the sight research of the control of the stability of underground gas of coal.

建立了鉆孔調(diào)控氣化的物理模型操来操去网站、數(shù)學(xué)模型及氣化盤區(qū)溫度場(chǎng)9999国产精品欧美久久久，并進(jìn)行了計(jì)算機(jī)模擬仿真及實(shí)例分析，對(duì)溫度及各組分的變化規(guī)律進(jìn)行了系統(tǒng)的分析研究久久精品视频里只有精品，得出了最佳調(diào)控鉆孔位置及調(diào)控與氣化穩(wěn)定的關(guān)系等重要結(jié)論黄色网站入口直接看，為煤炭地下氣化穩(wěn)定控制的可視化研究開辟了新的領(lǐng)域。

Studying the chemical balance,energy balance and material balance in the gasification process and probing into the interaction in the gasification process and law of changing offer a theoretical foundation for gasification control. Through the materialization nature of coal, the gasification characteristics of the deoxidize zone are mainly studied (the dynamics characteristics and chemical characteristics). Probing into coz deoxidize mechanism ?establishes the theoretical foundation for the proposition of mark gas;the Principle to adjust and control temperature and applying methods is studied;the physical and mathematical models of underground gasification are set up;A temperature field in the district of gasification is set up and the instance analysis of computer analogue simulation machine has been carried out.

本文通過探討"三帶"基本特征中文字幕中文字幕在线观看，進(jìn)而對(duì)煤炭地下氣化的過程穩(wěn)定進(jìn)行研究国产字幕中文亚洲看片；研究氣化過程中的化學(xué)平衡、能量平衡及物料平衡，探討氣化過程中各組分之間的相互關(guān)系及變化規(guī)律色色综合第一页，為氣化調(diào)控提供理論依據(jù)欧美精品偷拍视频；通過煤炭的物化性質(zhì)，重點(diǎn)研究還原帶的氣化特征色色播放，分析探討還原機(jī)理久久99国产精品无码，為標(biāo)志氣體的提出奠定理論基礎(chǔ)；研究以標(biāo)志氣體為核心的調(diào)控升溫氣化原理及實(shí)施方法一线日韩精品视频在线；建立地下氣化的物理模型與數(shù)學(xué)模型亚洲欧洲日韩在线免费视频；建立氣化盤區(qū)溫度場(chǎng)，并進(jìn)行計(jì)算機(jī)模擬仿真的實(shí)例分析免费看污的欧美操。

By usingthe method of time series analysis, the mathematical model of the angula...

這個(gè)結(jié)果對(duì)于評(píng)定陀螺儀的性能和質(zhì)量是有用的国产一级乱伦黄片。

The modern physics development by to the concrete material embodiment inspection, moved towards to the abstract material abstract research, namely from specially moves towards general, its utilizes the mathematical instrument is also same, moves towards mathematics from physical mathematics physics, already developed the abstract algebra and the general analysis situs, from bad on the one hand said, the physicist because of lost the concrete material object to change confusedly, was at a loss how to proceed, from was good on the one hand says, the research technique from specially moved towards general, also caused its thinking mode to have the return, tended to the philosophy, this speaking of the physics, was one kind of significant crisis, but at the same time, Also is a brand-new development turning point.

現(xiàn)代物理學(xué)的發(fā)展已由對(duì)具體物質(zhì)的具象考察，走向?qū)Τ橄笪镔|(zhì)的抽象研究亚洲玖玖色视频，即從特殊走向一般日韩在去bbb，其所運(yùn)用的數(shù)學(xué)工具也一樣，從物理的數(shù)學(xué)走向數(shù)學(xué)的物理欧美日韩123级黄色片，已經(jīng)發(fā)展到抽象代數(shù)和一般拓?fù)鋵W(xué)韩国一级片无码，從壞的一方面講，物理學(xué)家因失去了具體的物質(zhì)對(duì)象而變得迷茫亚洲第一日韩在线，無所適從国产色无码视频在线观看免费无码，從好的一方面講，研究方法的從特殊走向一般国产主播一区二区三区四区，也使其思維方式發(fā)生了回歸18岁以下禁止下网站黄，趨向于哲學(xué)，這對(duì)物理學(xué)而言欧美ⅹⅹ性欧美，是一種重大危機(jī)有什么好看的在线看黄色网站，但與此同時(shí)，也是一個(gè)全新的發(fā)展契機(jī)黄色视频免费在线无码观看。