zero coefficient 中文意思是什麼

zero coefficient 解釋
零系數
  • zero : n (pl zeros zeroes)1 【數學】零;零號。2 零位;零點,起點;(溫度表的)零度,冰點;座標原點;無...
  • coefficient : adj. 共同作用的。n. 1. 共同作用;協同因素。2. 【數,物】系數,率;程度。
  1. If the velocity of atoms is near to zero, the light for ces will tend to confine the atoms near to nodes and antinodes. the stability depends on the magnitude of the negative slope of the light force, the depth of the potential well and the momentum diffusion coefficient. it is important to select the parameters, e. g

    如果通過激光冷卻能使原子速度降至很小甚至為零,光壓力的作用將使原子被較穩定地囚禁于激光駐波場的節點和反節點處,其穩定程度取決于該處光壓力曲線負斜率的大小、對應勢能的勢阱深度以及動量擴散系數的大小,因此,如何在實驗中合理選擇激光強度、失諧量等顯得尤為關鍵。
  2. Cordierite is a kind of superior heat - resistant material melting point can achieve 1400, and its thermal expansion coefficient is close to zero

    Cordierite是一種優越的耐熱材料(熔點達1400 )其熱膨脹系數接近於零,因此,可忍受急劇之溫差。
  3. In consideration of multitype risk in the operation of insurance companies, this paper studies some important variables in insurance business and then comes to the conclusion that the surplus process is related to safe load and individual claim amount distribution when the preliminary reserve is zero while the surplus process is related to adjustment coefficient when the preliminary reserve is beyond zero

    摘要考慮到保險公司同時經營多種不同質風險的情況,本文從保險業務中需要研究的幾個重要變量出發,研究了初始準備金為零時,盈餘過程與安全負荷及個體索賠額分佈有關;當初始準備金大於零時,盈餘過程與調節系數相關等情形。
  4. Second, we introduce a two - lane traffic model which is based on the ( 0, 2 ) and ( 0, 1, 2 ) models. we mainly study the coupling effect of lanes. in two - lane traffic, vehicles can change lanes and overpass. the interactin between lanes is considered as coupling effect. the computer simulation indicate that ( dthe current of the system with cupling is greater than that without coupling ; 0for a certain initial density, the average flow and speed are indepent on the coupling coefficient which is greater than zero ; when the initial densities ( speeds ) of lanes are different, the characters of traffic system will be different

    在單車道模型的基礎上,建立v _ ( max ) = 2雙車道模型,研究車道的耦合效應。雙車道模型中車輛可以進行轉道、超車,兩道之間有耦合作用。模擬結果說明,有耦合時系統的流量比沒有耦合時大;在固定的初密度條件下,只要耦合系數b 0 ,兩道間的耦合強弱對流量和速度無影響;兩道初密度分佈不均勻和速度分佈不均勻都能使交通系統特性發生變化。
  5. The average partical size of bismuth ruthenate and pbo - b _ 2o _ 3 - sio _ 2 glass was researched. the smaller bismuth ruthenate partical is, sheet resistivity is lower and temperature coefficient of resistance ( tcr ) is more positive and the refiring change ratio is nearer to zero. the limit size of bismuth ruthenate partical is 0. 56 m

    研究了各相粉體平均粒徑對膜層性能的影響,結果表明:釕酸鉍平均粒徑越小,膜層的方阻值越小,電阻溫度系數偏正,重燒變化率越接近零值,球磨工藝的極限平均粒徑為0 . 56 m 。
  6. Theoretical models were used to predict the effects of microcrack - density to effective tensile modulus of cf / ep laminates for long - term duration exposure for it difficult to get from tests. a uniaxial zero - expansion model was established based on the analysis of thermal stress and the coefficient of thermal expansion of the laminates

    由於受到試驗周期的限制,對于長期暴露于空間環境中的層合板材料,其有效拉伸模量很難用試驗方法直接測量,本文採用理論模型進行分析。
  7. We have investigated transport properties of electrons in magnetic quantum structures under an applied constant electric field. the transmission coefficient and current density have been calculated for electron tunneling through structures consisting of identical magnetic barriers and magnetic wells and structures consisting of unidentical magnetic barriers and magnetic wells. it is shown that the transmission coefficient of electrons in a wider nonresonance energy region is enhanced under an applied electric field. the resonance is suppressed for electron tunneling through double - barrier magnetic ( dbm ) structures arranged with identical magnetic barriers and magnetic wells. incomplete resonance at zero bias is changed to complete resonance at proper bias for electron tunneling through dbm structures arranged with different magnetic barriers and magnetic wells. the results also indicate that there exist negative conductivity and noticeable size effect in dbm structures

    對磁量子結構中電子在外加恆定電場下的輸運性質進行了研究.分別計算了電子隧穿相同磁壘磁阱和不同磁壘磁阱構成的兩種磁量子結構的傳輸概率和電流密度.計算結果表明,在相當寬廣的非共振電子入射能區,外加電場下電子的傳輸概率比無電場時增加.對于電子隧穿相同磁壘磁阱構成的雙磁壘結構,共振減弱;對于電子隧穿不同磁壘磁阱構成的雙磁壘結構,無電場作用時的非完全共振在適當的偏置電壓下轉化為完全共振,這時的電子可實現理想的共振隧穿.研究同時表明,磁量子結構中存在著顯著的量子尺寸效應和負微分電導
  8. By the amended ‘ alternative hypothesis ’ model, the article proves that excess sensitively coefficient equates to the income of the short - looking consumer accounts for the gross income. at the same time, it proves that the intertemporal elasticity of substitution of the china is near zero

    並且通過兩個修正後的「二分」儲蓄模型證明了:在短視型居民的邊際消費傾向為1的假設下,過度敏感性系數等同於短視型消費者收入占總收入的比重。
  9. As composite material are widely used in navigation and physical education equipments for high comparing intensity and module, even it has the approxi - mate zero expanding coefficient, as the same time, configuration of composite has been aroused attention by scientific researchers, the goal of them is to find an integrated structure with high efficiency and intelligent and many function all along. grid structure is the right structure with the high efficiency, the researchers overseas have been studying the structure for many years, which manifests it has many excellent nature ; existing research indicate it has higher stiffness and intensity. the form can be detected in health easily for its open shape

    復合材料具有高的比強度和比模量,同時又具有近於零的熱膨脹系數和良好的尺寸穩定性等優良性能,已經廣泛應用於航天航空事業和體育器材生產工業,與此同時,尋求一種高效的、低成本的、並將智能化和功能化集於一體的結構形式,一直是航空航天追求的目標,具有點陣結構的復合材料格柵結構正是這種高效的結構形式,表現出多項優良性能;國外對其進行了大規模的理論分析和一些數值模擬研究,已有的研究表明該結構具有良好的可設計與自動化生產性能而無材料之間匹配問題,開放式的結構形式為結構的健康檢測提供了便利,具有廣闊的應用前景。
  10. It ' s reviewed for the coefficient classification of existing wavelet image encoding technologies. wavelet coefficient is clustered with gray structuring elements dilation and outputted in the form of fractional bit plane according to the different significance. zero tree structure is used to employ cross - subband dependency to promote the coding effort

    在對現有的小波編碼器對系數的分類方法的分析下,通過灰度結構元的形態學膨脹運算對小波系數進行更細的聚類分析,按照重要性的不同以分數比特平面的形式輸出系數,通過零樹結構開發帶間相關性。
  11. First, we give a polynomial series and study its minimum positive zero points, from this, the theorem of delay differential equations with both positive arguments and constant coefficient is obtained, this theorem is more explicit and practicable

    1具有正時滯的微分方程解的零點分佈為了證明方便,歸納定義多項式序列如下:記多項式_ i ( s )的最小正根為b _ i 。定理1
  12. According to the live coefficient c, we modified the predictions for this age group and come to a conclusion that is corresponding to actual field data. in other words, the numbers of - age and - age were nearly zero with their densities below 4 / hm2. these results suggest that l. lagurus population began to decline

    運用校正後的存活系數繼續預測,其結果與2001年9月的野外調查結果基本一致,證實當年草原兔尾鼠的數量非常少,低於4 . 0隻/公頃,且齡鼠和齡鼠幾乎為零。
  13. It researches three ways of characteristics extraction of signals including zero - center instantaneous feature, wavelet analysis feature and a feature set consisting of fractal dimension, l - z complexity degree, entropy and resemblance coefficient

    在特徵提取部分研究了信號的零中心瞬時特徵、小波分析特徵以及由分形、 l - z復雜度、熵和相像系數組成的特徵集。
  14. A new type of pressure coefficient cp is defined to lead to a linear correlation with radial locations, which will lead to a curve correlation with radial locations with conventional definition of cp. the correlations of cm, nuave and cp with rotational reynolds number have been got through the computation with rotational reynolds number from zero to 1. 0 108

    給出了扭矩系數cm 、平均換熱系數nu _ ( ave )隨旋轉雷諾數變化的關系式,發現它們與沒有預旋時是完全不同的,當re _ = 0時, cm 、 nu _ ( ave )不為零,而具有一個初值。
  15. With a view to dct that costs the longer computing time, fast dct is proposed, and the method of prejudgment of an macro - block of all zero coefficient of dct is adopted in this paper, which makes about 40 percent dct computation reduced, consequently, the encoding speed of h. 263 encoder can be further increased

    263編碼器的編碼速率;對運算量較大的dct給出了快速演算法,並對全零dct系數塊採用提前判斷的方法,從而省去了約40的dct運算,進一步提高了h 263編碼器的編碼速率。
  16. In practice it is extremely unusual for an estimated coefficient to be exactly zero, so in general the ssr will decrease when a new regressor is added

    實際操作中,被估計系數精確取零是極其罕見的,所以,當加入一個新解釋變量后,一般來說, ssr會降低。
  17. If ols happens to choose the coefficient on the new regressor to be exactly zero, then ssr will be the same whether or not the second variable is included in the regression

    如果ols恰好使第二個解釋變量系數取零,那麼不管回歸是否加入此解釋變量, ssr相同。
  18. The development of filters, resonators and other telecommunication technology required better dielectric materials. the dielectric materials, used as the resonate body, should be high in dielectric constant, low in dielectric loss and a near zero temperature coefficient of dielectric constant in high frequency band, also could be sintered in a relative low temperature so as to reduce production cost, and what ’ s more, the miniaturization and reliability of materials are also the main aspects in the research work of high frequency band dielectric materials

    隨著濾波器、諧振器等器件以及通信技術的發展,人們對電介質材料的要求越來越高,要求作為介質諧振腔的電介質材料在高頻段下具有高介電常數,低介電損耗,接近於零的介電常數溫度系數,還要求高頻電介質材料能夠在較低的燒結溫度下燒成,以降低實際生產的成本,此外,材料的小型化,高可靠性也是高技術高頻介質材料的重要研究方向。
  19. Exp - golomb codes are applied to code the pairs of the run - length of zero coefficients and the nonzero coefficient for lower storage requirement. c2dvlc is a low complexity coder in terms of both computational time and memory requirement

    以往視頻編碼標準如h . 263定義了可選擇的算術編碼器,新近的h . 264 avc標準也採用了高效的算術編碼方法cabac 。
  20. This paper studied zero - velocity correct technology for ins, based on analysis of ins error equation, it concluded the method by which we can use ins velocity output to estimate the attitude angle error when the vehicle halted, then it contrasted two schemes of conic approximation of attitude angle error and put forward a method to decide the approximation coefficient by time range

    本文首先研究了車載捷聯慣導系統( ins )的零速修正技術,在分析捷聯慣導系統誤差方程特點的基礎上,推導了停車時利用ins速度輸出估計姿態誤差角的方法,並對用二次曲線擬合姿態誤差角的兩種方案作了比較,提出了按時間分段確定擬合系數的方法。
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