boundary n. 邊界,疆界,限界 (between);(球場)邊線;界標;界限,范圍,分野。 aboundary dispute 邊界糾紛。 the boundary between Canada and the United States 美加國界。 boundaries on all sides 四方輻輳之所,四通八達。
linear adj. 1.線的,直線的。 2.長度的。 3.【數(shù)學(xué)】一次的,線性的。 4.【動、植】線狀的;細長的。 5.由線條組成的,以線條為主的,強調(diào)線條的。 linear amplification 直線放大。 a linear equation 一次方程式。 a linear leaf 線形葉。 linear arts 線條藝術(shù)。
A linear boundary value problem for generalized biregular function vectors 廣義雙正則函數(shù)向量的線性邊值問題
The linear boundary element method of calculating the problems of 2d electrostatic field 用線性邊界元分析二維靜電場問題
In this part , the first work is pretreatment of a numerical model , including creating calculating grids automatically , improvement of the linear boundary technique and so on . the second work is to estimate the siltation of a basin or channel by liu ' s equation . the third work is to build an edbms ( engineering data base management system ) for the result of mathematical model 其中主要的工作是:其中主要的工作一是數(shù)學(xué)模型的前處理,計算網(wǎng)格自動生成,線邊界法的優(yōu)化;二是應(yīng)用劉家駒公式在長江口深水航道治理工程地理信息系統(tǒng)的支持下實現(xiàn)港池、航槽開挖的實時回淤估算;三是將計算成果形成gis管理和支持下的工程數(shù)據(jù)庫系統(tǒng)( engineeringdatabasemanagementsystem ) ,同時嘗試解決時間序列數(shù)據(jù)如地形沖淤變化,潮位、流速過程的分析、查詢和顯示問題,并實現(xiàn)實時、互動的動態(tài)演示及三維可視化。
The condition under which the dirac operator is self - adjoint is discussed under the general linear boundary condition between the interval of two points . for the expansion theorem of non - self - adjoint dirac operator , it is unable to use the method of integral equation . but under the linear boundary condition and unlocal boundary condition , the eigenvalue expansion problems of non - self - adjoint operator can still be discussed by using the residue method 對于非自伴dirac算子的特征展開定理已無法應(yīng)用積分方程的方法,本文仍用留數(shù)方法對一個兩點非自伴邊界條件和一個非局部邊界條件下產(chǎn)生的非自伴算子的特征展開問題進行了討論,分別得到了它們的特征展開定理。
Abstract : this paper discusses high order numerical model of non - linear boundary equation . by using integral technique , the boundary condition problem is turned into a form initial condition problem . we construct 4 order numerical formula . the convergence theory is given and proved . the examples show that our method has fast convergence speed and less numerical time 文摘:討論非線性邊值問題的一種高精度計算模型.利用積分值將邊值問題轉(zhuǎn)化為形式初值問題,構(gòu)造了一類四階精度的計算格式,證明了收斂性.通過算例表明該方法收斂速度高,計算量小
Abstract : the mechanical analysis for arch bridge with flat hinge joints is a mechanical problem with non - linear boundary . mechanical analysis of methods at present is not clear , which can not calculate the arch bridge with changeable section and section with complicate shape . in this paper , the new method used to get the section resistance coefficient k is presented , the iterative procedure is established to calculate the internal forces of arch bridge with flat hinge joints , and the computational example is given . the method can apply to the arch bridge with any numbers of flat hinge joints and any shape section 文摘:平鉸拱橋結(jié)構(gòu)的受力分析屬于邊界非線性力學(xué)問題,目前的一些方法受力分析不太明確,對變截面、復(fù)雜形狀截面等平鉸拱橋無法進行計算.針對這種情況,提出了確定平鉸截面抗力系數(shù)k的新方法,建立了計算平鉸拱橋內(nèi)力的迭代算法,并進行了實例計算,研究結(jié)果表明,這一方法對具有任意個平鉸、任意形狀截面的拱橋結(jié)構(gòu)是適用的