difference band 中文意思是什麼

difference band 解釋
差帶
  • difference : n. 1. 差異，差別。2. 不和，爭論。3. 【數學】差，差額。4. 【邏輯學】特殊性。vt. 〈罕用語〉區別，使有差別。
  • band : n 1 帶，繩；帶形物；箍；箍條；嵌條；鑲邊；鋸條； 〈pl 〉 （法官等的）寬領帶。2 束縛，羈絆；義務；...
  1. In this thesis, a new finite difference time domain ( fdtd ) method is developed to treat a two - dimensional photonic crystal consisting of nearly - free - electron metals. the method is used to calculate the band structures and investigate defect modes and guide modes in such a photonic crystal

    本論文首先發展了一種基於等離子模型的有限差分計算方法，並應用於二維金屬光子晶體，有效地計算了該類光子晶體的能帶結構。
  2. It is transparent in a region from the visible to the infrared range ( 0. 45 - 13 ? m ) and has a fitful birefringence and a large nonlinear coefficient. aggas2 crystal can be made to be octonary device, difference - frequence device and parametric oscillator, and laser sources of different frequences in 1. 8 - 11 ? m band can be provided

    其紅外透波范圍寬（ 0 . 45 - 13 m ） ，具有適宜的雙折射率和大的非線性系數，可製成倍頻、差頻和光參量振蕩器件，在1 . 8 - 11 m范圍內可提供多種頻率的激光光源。
  3. Sds - page results showed that there was a clear target protein band in mut + recombinant supernatant after 48 hours of culturing, while a faint band only in muts recombinant after 72 hours. western - blotting result showed that there was no remarkable difference of yield between mut + and muts recombinants after 6 days induced. anti - virus activity tests revealed that culture supernatants of mut + and muts recombinants could inhibit tmv infection with high efficiency in the same concentration and there was no significant difference between them

    結果表明，誘導培養48小時后， mut ~ +重組菌株表達產物在sds - page膠上顯現出清晰的目的蛋白帶，而mut ~ s重組菌株培養72小時才能顯示微弱的目的帶； western - blotting雜交信號強度表明，同樣培養6天的mut ~ +和mut ~ s重組菌株表達產物在表達量上沒有明顯差別。
  4. In the first part of the paper, the explicit form of difference equation and periodic boundary condition is derived in cartesian coordinate system. secondly, the dispersive characteristic is analyzed in cylinder coordinate system for many high power microwave devices use cylinder sws. and then the method is extended to calculate the band structure of 2 - d photonic crystal, a modified yee ’ s grid is introduced to calculate the dispersive characteristic in the case of triangular lattice, so that both square lattice and triangular lattice cases can be solved in cartesian coordinate system

    周期電磁結構的一個重要應用就是用作高功率微波器件中的慢波系統，考慮到目前大部分高功率微波器件的慢波系統多採用圓柱周期結構，在論文第四章中，在圓柱坐標系下，給出了差分方程和周期性邊界條件的具體形式，同時編寫程序，分析了milosws ，盤荷慢波結構的色散特性。
  5. If an electron with k state is initially in one miniband, elastic scattering will make the difference of the probability band occupation tend to zero. if electrons initially are located at a single wannier state, elastic scattering will make the difference of the probability band occupation tend to a constant which does not equal zero. the stable distribution in k space is just the same as the average distribution when no scattering

    發現彈性散射會破壞電子間的關聯，使得初始處在某一微帶上的態電子在兩微帶上的佔有幾率趨於一致；初始電子處在實空間的單個瓦尼爾態上時，最後在彈性散射的影響下兩帶佔有幾率差不為零，並且在上的穩定分佈和沒有散射時的平均分佈相同。
  6. In the mosaic experiment of cbers - 01, this paper chooses the method of one - track multi - band histogram mosaic plus inter - track histogram mosaic to decrease the color difference of images and improve the quality of images

    鑲嵌試驗中，選擇先單軌道多波段直方圖匹配拼接，再進行軌道間直方圖匹配拼結的方法，最終獲得接邊和色彩匹配基本滿意的全貴州cbers - 01影像鑲嵌圖。
  7. Principles of optimal bands selection are that spectrum characteristics have difference to the biggest among land types except information quantity of selected band is so big and correlation between bands is so little

    最佳波段選取原則除主要考慮波段的信息量要大，而它們之間的相關性要小這兩個因素外，還要使波段組合后地物之間的光譜特徵差異達到最大。
  8. Chapter four briefly researches the principle of range migration algorithm. the relation and difference between frequency scaling algorithm and range migration algorithm are studied carefully. through the point simulation under ultra wide - band system parameters, we compare their imaging performances

    第四章簡要介紹了距離徙動演算法原理，著重分析了頻率scaling演算法和距離徙動演算法之間的聯系及區別，並通過超寬帶（ uwb ）系統參數下的點目標模擬比較了它們的性能。
  9. The comparison between the results of calculation and measurement shows that the two results are in good agreement for the broad band antenna in the l band and the waveguide - coax converter of bj48 type used as antenna in the c band, with a difference of less than 0. 7db, and that the two results also agrees well in the x band for the waveguide - coax converter of bj100 type used as antenna, with an error close to 1db only at few points in the given frequency range

    比對結果表明: l波段（加脊天線） 、 c波段（ bj48型波導同軸轉換作為接收喇叭）的模擬結果與實測結果符合得較好，誤差小於0 . 7db ;在帶內， x波段（ bj100型波導同軸轉換作為接收喇叭）的模擬結果與實測結果比較一致，只在個別頻率點處誤差近1db 。
  10. The results showed that pcr applify a 485 specific molecular band in 672 individuals, the rate of positive reaction is 60 %, southern blot result shows a strong signal in transgenic fish. it is concluded that hu - - ifn gene has been integrated and expression. it is also that foreign gene integrating position and copy number is different individuals, by elis a detecting, 23. 5 % transgenic fish " were detected hu - - ifn gene expression in all 672 transgenic fish, but expression level of hu - - dfn is significant difference in different individuals and growth period

    2000年共顯微注射32197粒草魚受精卵，出苗12945尾草魚魚苗，經孵化培育最後獲得1120尾五寸左右草魚，對1120尾草魚提取血液總dna進行pcr和southern雜交檢測， 2000年轉導的草魚的pcr檢測結果，有672尾草魚即600k轉化個體的總dna能擴增出一條485kb的特異分子帶，說明轉化個體整合有huj ifn基因，經southern雜交進一步證實，轉入的抗病相關基因己在轉基因草魚體內染色體上得以整合，但整合位點沒有固定區域，整合的拷貝數存在較大差異。
  11. The difference between disturbed soft clay and field soft clay is compared, and the example suggests that the disturbance degree resulted from the construction of prefabricated band drains is about 30 %. the disturbance slower the consolidation of the soft clay ground, and the extra settlement resulted from disturbance is also notable. to verify the theory developed herein, the analytical solutions are compared with the field measured ones, which shows that they are in a good agreement

    實例分析表明，施打排水板的實際擾動度約為30左右，擾動減緩了地基的固結速率，引起地基的附加沉降量也是相當明顯的，考慮土結構性的地基沉降計算方法得到的計算結果和地基實際固結沉降量較為吻合，說明了計算理論的可靠性和合理性。
  12. This dissertation is mainly concerned about the radiation of the tem - horn arrays which radiate uwb ( ultra wideband ) pulse, it mainly involves three parts : theory, numerical stimulation and experiment. the uwb antenna is a new research field in the world which has many differences from nb ( narrow band ) antenna. the most difference is that the uwb antenna such as tem - horn radiates nanosecond pulse which has wide frequency spectrum, but the nb antenna radiates single frequency signal

    超寬帶天線是一項新興的研究領域，它與窄帶天線有很多不同之處，最根本的不同在於：超寬帶天線例如tem喇叭天線是輻射納秒級短脈沖信號，這種脈沖信號有很寬的頻譜；而窄帶天線大都是輻射單一頻率時諧信號的。
  13. The article plots gray and color difference curves based on mach band images. author introduces an algorithm of automatic threshold choice based on the curves in the wavelet edge detection. gray and color images are tested, and there is a good result

    以此為基礎提出了小波邊緣檢測中的自動閾值選取演算法，分別用灰度圖像和彩色圖像作實驗，實驗結果證明了這種演算法具有較強的自適應性和較好的提取效果。
  14. The difference, expressed in hertz, between the two limiting frequencies of a band

    一個頻帶的上下界頻率之差，單位用赫茲表示。
  15. Two - dimensional photonic crystals with heterostructure is proposed. its band gap was calculated by the finite difference time domain method. the numerical analysis showed that the band gap is enlarged

    摘要提出異質結構的二維光子晶體模型，用時域有限差分法計算其帶隙，數值計算結果表明，其帶隙寬度變大。
  16. A plane - wave expansion method based on the effective medium theory is firstly introduced, and the new method has a better convergence than that of the pwm. as a new method for calculating the band structure of a photonic crystal, a finite difference scheme is also introduced to the governing differential equation based on the effective medium theory

    首先提出了基於等效介質理論的平面波方法，顯著地改善了平面波演算法的收斂性質；同時提出一種新的計算光子晶體能帶的有限本徵差分演算法，與已有的平面波展開法相比，新方法保留了本徵值演算法的獨特優點，同時又克服了平面波展開法的慢收斂性。
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