numerical range 中文意思是什麼

numerical range 解釋
數值范圍
  • numerical : adj 數字的；數值的；用數字表示的。 （a） numerical order 號數。 a numerical statement 統計。 the ...
  • range : vt 1 排列；整理（頭發等）。2 使歸類[班、行、隊]；把…分類。3 〈用被動形或反身形〉加入，站住…的一邊...
  1. In this research, the plant esterase of wheat and - ethanoic acid naphthalene ester were taken as materials to inspect the relation between the wheat esterase and the organic phosphorus, ten linearity equations were established which expressed the esterase vigor and the organic phosphorus density logarithm with the change of the numerical value of ultraviolet resorption, and the monotony range and the extremum of the function were confirmed

    摘要本研究以小麥為植物酯酶的酶源， -乙酸萘酯為底物，考察了小麥酯酶與有機磷農藥之間作用的關系，建立了10個以吸光值變化表示的酶活性與有機磷農藥濃度對數之間的線性方程，並確定了函數的單調區間和極值。
  2. The thermodynamic free energy on mixing and the spinodal equation in ternary homopolymer blends were obtained by making plausible approximation based on flory ' s equation of state theory. because of the non - linear behavior of the spinodal equation, a numerical solution approach was used and succeeded in solving the problem. spinodal of polystyrene ( ps ) / poly ( vinyl methyl ether ) ( pvme ) / poly ( 2, 6 - dimethyl - 1, 4 - phenylene oxide ) ( ppe ) were simulated over a wide temperature range and the calculated result was coincidence with that of the literature

    將上述方法用於已知狀態方程參數的二元均聚共混體系聚苯乙烯（ ps ） /聚甲基乙烯基醚（ pvme ） ，三元均聚共混體系聚苯乙烯（ ps ） /聚甲基乙烯基醚（ pvme ） /聚2 ， 6 -二甲基1 ， 4 -苯撐氧（ ppe ） ，得到一系列不同溫度下的spinodal相圖，預測結果與文獻報道吻合，在此基礎上進一步研究了聚合物的分子量對體系相行為的影響。
  3. With the adding of appropriate conditions, we present in this note a sharper range of inverse function. this is of important to nonlinear analysis and numerical feasibility appraisal

    本文通過附加適當的條件，刻劃了反函數的存在域大小，這種存在域對非線性分析中研究解的存在性、解的估計及非線性方程組求解的數值可行性都有一定的意義
  4. He explained that phrases used by a couple in conversation are given a numerical value with the range being from minus four to plus four

    他解釋說夫妻對話時使用的詞語都被賦予了一定的數值，范圍從負四到正四。
  5. This product is a type of professional handset infrared rays used thermometer, not need to touch with testing object, with facility - using, stability - design, exactitude - measurement, wide - measuring range. it has laser ranging, apheliotropic display, automatic numerical reading lock - in and automatic tailoff

    手持式紅外線本產品是一種專業型的手持式非接觸紅外線測溫儀，使用簡易，設計堅實，測量準確度高，測溫量程范圍寬等特點。
  6. Abstract : based on the site actual measurements, the inversion analysis on the d estroy range of roof and floor by the combined mining of thin seams was made by using numerical modeling

    文摘:以現場實測結果為基礎，利用數值模擬與反演方法分析了薄煤層聯合開採的頂、底板破壞范圍。
  7. The effect of range correction system of long - range rocket adopting sins is analyzed through numerical simulation

    通過數值模擬的方法，研究了採用捷聯慣導技術后遠程火箭射程修正效果。
  8. In accordance with different tripping annulus at the inlet, the numerical simulations of the reattachment length were performed with the " variable c ? " model. in the range of experimental reynolds number, the tripping effect on the reattachment length was developed in the figure. the dependence of the reattachment length on reynolds number was also analysed in the different status of pipe flow

    利用變模型常數的-模型針對不同尺寸的擋環進行了再附著長度的模擬計算，在實驗雷諾數范圍內，建立了入口處擋環對再附著長度影響的變化曲線，分析了再附著長度在不同的管流流動狀態下相對于雷諾數的變化情況。
  9. Firstly, the airfoil ' s classic flutter ( at small attack angle ), stall flutter ( near the static stall angle ) and response ( at large attack angle ) are analyzed. it is found from the numerical results that " lock - in " will occur at certain freestream velocity range near the static stall angle, where the frequency of the vortex will be equal to the natural frequency and the flutter has the characteristic of self - induced oscillation. when the attack angle is far from the static stall angle, the vortex will have its own frequency, which differs from the natural frequency, and the flutter has the characteristic of forced oscillation

    首先研究了二維翼型的古典顫振（小攻角） 、失速顫振（失速攻角）和動力響應問題（大攻角） ，得到以下結論：在靜態失速攻角附近的一定來流速度范圍內，分離渦會發生頻率鎖定現象，分離流的頻率與固有頻率趨于相同，這時的振動呈現自激振動的特點；遠離失速攻角時分離流頻率則擺脫固有頻率的影響，此時的振動具有強迫振動的特點。
  10. As we all know, one of the main aim of the spectral theory research is to find out the location of the spectrum, it is just because of the quadratic numerical range gives a better information about the localization of the spectrum than the numerical range and that provoke my interest to study the quadratic numerical range. the aim of this paper is to make a deep investigate in this area, the main content as follows : the first part of this paper pays the emphasis on the quadratic numerical range

    我們知道，研究譜理論的一個重要目的就是了解譜的位置特徵，通過對比可知，二次數值域較之數值域能夠更好地給出所給運算元的譜的位置特徵，這引起了我們的研究興趣，本文將著重就二次數值域的相關問題進行較深入地研究，同時我們還提出了一些有待解決的問題，我們認為這些問題是值得大家共同去研究和探討的。
  11. After we define the n - numerical range of bounded linear operators on a hilbert space, we find that the n - numerical range have a series properties very similar to that of the quadratic numerical range. at the same time, we prove that under certain conditions, wn ( a ) c w ~ ( a ) and that when h is finite dimensional and dimti = n, we have a ( a ) = wn ( a ). therefore, it is nature to guess that when h is an infinite dimensional hilbert space, for any space decomposition dn ? ?

    首先給出了n次數值域的定義，我們發現n次數值域不但具有一系列和二次數值域類似的性質，而且在給定的條件下還有n次數值域包含在二次數值域當中，另外當是n維hilbert空間時，它的n次數值域就等於它的譜集，前面的結論促使我們猜想，當是無限維hilbert空間時，對的任意的空間分解d _ n ，都應該有下面的式子成立： （ a ） = _ （ d _ n d ） w _ （ d _ n ） ~ n （ a ） 。
  12. The numerical range of non - negative matrix

    非負矩陣的數值域
  13. The subject is related and has applications to many different branches of pure and applied science such as operator theory, functional analysis, c " - algebras, banach algebras, matrix norms, inequalities, numerical analysis, perturbation theory, matrix polynomials, systems theory, quantum physics, etc. in recent years, the quadratic numerical range, one of the most important generalizations of the numerical range, was put forward in the course of people studying the spectral theory of the block operator matrix to the need of the development of some branches mentioned above

    對它們的研究涉及到了基礎數學及應用數學許多不同的分支，諸如運算元理論，泛函分析， c ~ * -代數， banach代數，矩陣范數，不等式，數值分析，擾動性理論，矩陣多項式，系統論，量子物理等等，並且在這些分支上面得到了廣泛的應用。近年來，為了上述某些數學分支發展的需要，人們在研究分塊運算元矩陣譜理論的過程中引入了數值域的一個重要推廣：二次數值域。
  14. It is found that, the modes of coaxial optical emission of dissimilar gaps, clustering at distinct numerical range, can distinguish 1st, 2nd and 3rd class welds of different welding quality effectively

    結果表明，同軸光信號幅值的眾數在不同間隙的焊縫段，聚集在線性可分的不同的區間，可以有效分開焊接質量不同的類、類、類焊縫；信號的分段功率譜分析能夠較為直觀地反映焊接狀態的變化。
  15. Research on quadratic numerical range of bounded linear operators zhang jingjie abstract the study of numerical range started in 1918 - 1919 by toeplitz and hausdorff when they first proved that w ( a ) is always convex, since then, the study of numerical range theory had been one of the most active research areas

    自toeplitz和hausdorff在1918 - 1919年首先證明了toeplitz - hausdorff定理以後，有關數值域、數值半徑以及各種廣義數值域及其數值域半徑的研究變得非常活躍。
  16. At first we get an equivalence characteristic of the numerical range : w ( a ) = jpn ? pn w ( pna en ). from the definition of the quadratic numerical range, we can see that the quadratic numerical range depend on the space decomposition. from contrast, we can see that the quadratic numerical range gives a better information about the localization of the spectrum than the numerical range, perhaps just because of this, the quadratic numerical range of an operator need not to be convex, and even that the quadratic numerical range of an operator need not connected, then we give a condition under which the quadratic numerical range of an operator is not connected

    為了對數值域的本質有更進一步地了解，首先根據toeplitz - hausdorff定理的證明方法，得到了數值域的一個等價刻畫： w （ a ） ： u _ （ p _ n p _ n ） w （ p _ na | e _ n ） ，接著引入了二次數值域的定義，從二次數值域的定義我們可以看出，一般說來，在不同的空間分解下，一個運算元的二次數值域也會截然不同，但是當所給的兩種空間分解有某種關系時，它在這兩種空間分解下的二次數值域是相等的。
  17. In the second part : the emphasis is put on the n - numerical range

    第二部分：研究了二次數值域的推廣： n次數值域。
  18. In the last part : the emphasis is put on the relations between the numerical range and operator completion problem

    第三部分：研究了數值域與運算元補問題。
  19. Furthermore, selection of parameters in the new algorithm is analyzed, a selection method of parameters which possesses a generality is proposed based on many numerical simulations, and finally the best numerical range of each parameter is determined

    對改進演算法的參數選取進行了分析，在大量數值模擬的基礎上提出了具有普遍意義的參數選取方法，並基本確定了各參數的最佳取值范圍。
  20. On the other hand, benefit from the facts above and according to the properties of the numerical range, we study the operator spectrum perturbation problem, in the last, we give some better proofs on some theorems which simplify the original proof much

    其次，受前面的引理的啟發，根據一個運算元的數值域和它的譜之間的關系，研究了數值域與譜擾動問題，在本章的最後，我們給出了幾個證明的改進
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