symmetry number 中文意思是什麼

symmetry number 解釋
對稱數
  • symmetry : n. 對稱；勻稱；調和；勻稱美。 bilateral symmetry 左右對稱。 radial symmetry 輻射對稱。
  • number : n 1 數；數字；〈pl 〉算術。2 （汽車等的）號碼；第…，第…卷，第…期〈通常略作 No （復數 Nos ），用於...
  1. The results show that the chiral symmetry is restored partially when the strange matter density increases and 2 plays a very important role in the strange matter which may approach the constituents of the neutron stars. in additions, we can find that the strange matter density where the - condensate emerges is led to the ratio of the nucleon number to baryon number. and the occurrence of - condensate is only in certain density and gradually increases for higher density, so we guess that - field may be necessary to carefully consider for studying the neutron stars

    （ 3 ） -凝聚出現時所對應的奇異物質密度值與核子在奇異物質中的比例有關。另外，雖然本文對夸克凝聚的討論是在低密度的奇異物質中進行的，但是-凝聚的出現卻需達到一定的密度值並且隨密度的增大而遞增，所以我們推測場可能對于仔細研究中子星是一必要因素。
  2. There has been many papers to discuss the in - medium quark and gluon condensates in nuclear matter which use the models with su ( 2 ) l su ( 2 ) r sym - metry. now, we make use of the chiral model su ( 3 ) l su ( 3 ) n including the baryon octet to discuss the quark condensate < qq > in strange matter, where q is an up or down quark field. on the one hand, from the experimetal data, it is found that < qq > vac = - ( 225 25mev ) 3, on the other hand, with the hellmann - feynman theorem, quark condensate can be evaluated on the hadronic level. in this paper, we will investigate the quark condensate in strange matter with the chiral symmetry su ( 3 ) l x su ( 3 ) rspontaneous breaking lagrangian to obtain the variation of the quark condensate in the strange matter when the baryon number change. it can be applied to understand the neutron stars when the neutron star are considered to be constructed by the strange matter. because nertron stars are homogeneous and at very low temperature, we will use the mean - field approximation and zero temperature throughout this paper

    鑒于已有大量文獻討論了核物質中的夸克凝聚，本文將討論在奇異物質中的夸克凝聚。而在介質中的夸克凝聚的基本公式可由hellmann - feynman理論導出，所以運用手征對稱自發破缺拉氏量以及平均場近似，我們就可以討論在奇異物質中的夸克凝聚，由所計算的結果表明： （ 1 ）奇異物質中的夸克凝聚隨奇異物質密度的增大而單調減小。 （ 2 ） -凝聚的出現對衰減率有影響。
  3. Then, according to characteristic of four kinds of butterfly operation in real number signal integer fft transform keeping modulus conjugating with symmetry, different lifting matrixes has been got and real number signal integer fft transform keeping modulus conjugating with symmetry can been achieved

    然後，根據實信號保持共軛對稱性的fft整數變換中的四類蝶形運算特點分別構造不同的提升矩陣，從而實現實信號保持共軛對稱性的fft整數變換。
  4. In each case, we present the surface band structure together with the projected bulk band of both ideal and reconstruction surface respectively, the number of the surface states is determined, and the localized surface features and orbital properties of this surface states along the high symmetry lines in the 2d sbz are discussed

    根據電子數目規則，我們斷定處在一o . lev ~ 0 . lev的表面態為全部填滿的陰離子懸掛鍵態或者為原子再構后引起的as一asdimer鍵態，而處在1 . 4ev一1 . 6ev的表面態為陽離子空的懸掛鍵態。
  5. This paper includes a number of contributions on how to harmonize the macro and micro, global and local, random and structural, order and disorder, simple and complex, and so on, which is the significant task for the complexity exploration. it is research course that is more important than others, but still several conclusions have been drawn as follows : regional speciality lies in spatial complexity, the process of spatial complication starts from symmetry rebuilding in macro - level while symmetry breaking in micro - level which accounts for emergence of complex regularity, and the target of geographical evolution seems to reconstruct the symmetry laws of nature

    標度律是全文的邏輯核心，通過它們將城市系統的宏觀與微觀、整體與局部、有序與無序、隨機與確定、簡單與復雜、對稱與對稱破缺等對立問題有機地統一起來。盡管如此，本文還是得出了一些基本結論:所謂地理學的區域獨特性實則空間復雜性，微觀層面的對稱破壞與宏觀層面的對稱重組是「突現」和空間復雜化的動力根源，城市系統自組織演化的優化目標似乎就是重建大自然的對稱律。
  6. For both newtonian flow and non - newtonian flow, the vortices are generated when the waviness of the bottom profile is beyond a critical number. by increasing the waviness, a second vortex can be generated. with the increasing of reynolds number, the symmetry of the streamlines at re = 0 is destroyed and the vortices are sloped and become larger

    當波形板的波動度超出臨界值，波形板壁面上的流動出現流線分離，流動中有渦生成;增大波動度，流動中出現第二個渦; re = 0 ，流線在流場中對稱分佈;雷諾數增大，流線駐點在水平方向出現位置偏移，渦的范圍增大;對于非牛頓流體，隨著剪切變稀指數的減小，渦的作用范圍減小。
  7. ( 6 ) as dean number is increased, the secondary flow firstly becomes symmetry and then the anticlockwise vortexes are enlarged, the contours of axial velocity and the stream function become symmetry, the secondary flow is intensified and the friction factor ratio increases

    （ 6 ）增大dean數，二次流先趨于對稱而後逆時針方向的二次渦增大，軸向速度和流函數等值線趨向于對稱，摩擦系數比增大。
  8. All the contents are developed around a set of scaling laws taking the form of exponentials which relate to almost all the issues of complexity including fractals, chaos, strange attractors, localization, and symmetry breaking, etc. the main work can be summarized as follows : starting from the law of allmetric growth three fractal dimensions in a broad sense are derived, and according to these dimensions, geographical space is divided into three levels, i. e., real space, phase space, and order space, each of which corresponds to a kind of dimension. based on the idea of spatial disaggregation and using the rmi ( relationship - mapping - reversion ) principle, the urban system is formulated as three scaling laws of the three spaces, including number law, size law, and area law, which can be transformed into a set of power laws such as allometric law and zipf ’ s law associated with fractal structure

    從異速生長律的縱向、橫向和切向三個角度將地理空間劃分為實空間、相空間和序空間，分別對應于空間系列、時間序列和等級序列三個層面，每個層面的測度各有自己的空間維度。基於「空間循環細分-等級體系-網路結構」的數理等價關系，利用rmi （關系-映射-反演）原則，成功地實現了城市系統宏觀模型的理論抽象，將空間復雜性問題表徵為簡單的指數式標度定律（包括數量律、規模律和尺度律） ，這一組標度律可以與一組冪次定律（包括具有分形性質的規模-數目律、異速生長定律和三參數zipf定律）互為變換。
  9. Moreover, with the datum come from calculation and test, it seams that after the number of batten floor n > 3 the change of b effected by n is too weak to be ignored. hence, that indicates it is available that the laterlly buckle of the batten column with the single axis of symmetry could be calculated with b worked out from h - shaped anglicizing element without n

    此外，由電算和實驗分析可見，值在綴板層數n 3以後，其變化受n值的影響不大，這說明用h計算單元導出的與綴板層數無關的值計算公式是可以用於單軸對稱綴板柱的側向屈的計算。
  10. In the selection of kadanoff cells a new idea is given, i. e., not only the symmetry of lattice before and after selection must be kept unchanged, but also the coordination number must be kept unchanged

    在kadanoff集團的選取上本文提出了一個新觀點，即不但要保持選取前和選取后晶格的對稱性不變，還要保持格點的配位數不變。
  11. ? we justify the applicability of antisymmetry biorthonormal wavelets ( asbw ) to image coding by a number of experiments, and found that the performance of some selected asbws is at least the same as the famous 9 _ 7 wavelet, which is a symmetry biorthonormal wavelet. however asbw has a potential advantage, namely extracting image edges from the coefficients decomposed by asbw, it may give a way to feature extraction from image compression data domain without completely image reconstruction

    它的性能和目前在壓縮編碼中常用的9 - 7對稱雙正交小波可以比擬，但是由於反對稱雙正交小波還有如下潛在優點，即從壓縮數據域中不經重構圖像即可提取圖像邊緣，故應對反對稱雙正交小波在圖像編碼中的地位予以充分重視。
  12. The approximation order is increased by adding the factor number in the factorization of mask of multi - scaling vector with tst, and symmetry, short support of multi - scaling vector are maintained simultaneously

    利用雙尺度相似變換增加其掩模分解中的因子個數以提高尺度向量的逼近階，同時保持尺度向量的緊支性和對稱性。
  13. As for moving tc, its symmetry somely rusume after landfalling. the different distributing between expb2 and expb3 is much smaller than the other exps of the same group, so it is shown that if the roughness coefficient come to a certain number, the effect of roughness maybe not take the leading key in tc decreasing process any more

    對于移動熱帶氣旋登陸而言，登陸后對稱性有所恢復，當下墊面粗糙度達到一定值時，由於粗糙度引起的差異明顯減小，粗糙度在其減弱的過程中可能已不佔主導作用。
  14. They have a number of desirable properties not possessed by wavelets of daubechies type, namely : they have symmetry property ; the scaling function and physical space representation are identical ; expansion coefficients are easily computed ; in certain respects they are more accurate ; the functions ( but not their derivatives ) can be computed without solving an eigenproblem. the price to be paid for these advantages is the loss of orthogonality, interpolating wavelets are only biorthogonal

    本文主要的研究成果是把一維的某些結論推廣到高維，分為以下四個方面： （ 1 ）使用二元拉格朗日插值法構造二元尺度函數和小波函數，使其具有緊支性、對稱性以及函數展開式的系數易於計算等優點。唯一的缺陷是缺乏正交性。
  15. In the case of reflection, this symmetry depends on whether a quarter wavelength fits an even or an odd number of times in the layer thickness

    而在反射的情況下，這一對稱性由薄膜厚度為1 / 4波長的奇數或偶數倍決定。
  16. So a hypothesis is proposed, i. e., as long as the symmetry and coordination number are kept unchanged the critical behavior of any two - dimensional lattice is same by this method. that indicate those two - dimensional lattices belong to the same universal class

    所以本文還提出假設，只要是保持對稱性和配位數不變，用這種方法計算出的任何二維晶格的臨界行為都是相同的，這表明它們是同一普適類。
  17. According the symmetry principle, minimize the model one third the size of the former model. the mesh number is greatly decreased which successfully solve the problem of lacking of computer resource

    本文採用計算區域的簡化處理，根據射流對稱特點，將整個計算區域簡化為原來的1 3 ，計算網格數大大減少，計算時間亦大大縮短，有效地解決計算機資源不足的問題。
分享友人
分享到 Line

分享到臉書