數周期 的英文怎麼說

中文拼音 [shǔzhōuqī]
數周期 英文
one number time
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 周 : Ⅰ名詞1 （圈子; 周圍） circumference; periphery; circuit 2 （星期） week 3 [電學] （周波的簡稱） c...
  • 期 : 期名詞[書面語]1. （一周年） a full year; anniversary 2. （一整月） a full month
  1. Time constant of the aperiodic component

    非周期分量的時間常數
  2. Periods of apnea end with a brief partial arousal that may disrupt sleep up to hundreds of times a night

    呼吸暫停周期以短暫局部覺醒結束，每晚可能幹擾睡眠達數百次。
  3. Let f be a biquadratic polynomial, then ( 1 ) the julia set of f is connected if and only if the orbits of all critical pionts are bounded ; ( 2 ) the julia set of f is totally disconnected if and only if every connected component of the filled julia set of f containing critical points is not periodic under iterations : ( 3 ) if f does not satisfy the conditions ( 1 ) and ( 2 ), then the julia set of f has infinitely many non - trivial connected components, where a component is trivial if it contains only one point

    A集是完全不連通的當且僅當f的任何臨界聲、不屬于填充julm集的周期分支內。你當j的臨界盧、不滿足條件小， 」 j時， f的幾ha集有可數個非平凡的連通分支，這里，一個分支是平凡的，如果它僅由一個盧、組成。 。
  4. The third "l" shows that the series is leading all turns of the business cycle.

    第三個安母「L」表明這個數列領先於周期的高峰。
  5. The turning points of the series in this group precede those of the business cycle by two to ten months.

    這組數列的轉折點領先於商業周期轉折點約210個月。
  6. Periodic local catastrophes reduce populations.

    周期性的局部地區的災變降低了種群的數量。
  7. Secondly, in this paper, the four typical uwb antennas of tem horn antenna, log - periodic antenna, biconical antenna and helical antenna are theoretically analyzed and the uwb antenna design methods are generalized and discussed

    其次，本文對tem喇叭天線、對數周期天線、雙錐形天線和螺旋天線四種典型的超寬帶天線進行了理論分析，總結並討論超寬帶天線的設計方法和手段。
  8. A proof of the periodicity theorem of complex clifford algebra

    代數周期性定理的一個證明
  9. 2. the paper studies calendar effects of the sample, such as periodicity and long memory 。 so we use the flexible fourier form regression proves and filters the periodic components 。 and use ghp method to estimate the fractional integration d

    用對數周期圖法（ gph ）檢驗和估計序列長記憶行為。最後對去周期的收益序列建立了garch和egarch模型，較理想的擬合了價格的波動。
  10. Photonic crystals have recently been studied extensively because they offer unique ways of tailoring the propagation of light. a number of methods have been developed to create the periodic structures possessing photonic band gap ( pbg )

    光子晶體是一種介電常數周期性變化排列的人工晶體，它提供了一種完全不同的新的控光機制，因而被稱為「光的半導體」 。
  11. The mathematical expression, which is used to calculate the variable phase center based on the mom, is derived first in the paper. it is proved that the variable phase center of the lpda is not superposition in the e - plane and the h - plane

    文中採用矩量法，首次導出了基於矩量法多分段計算可變相位中心的表達式，證明了偵測合一系統中常用的對數周期偶子天線（ lpda ）在e面和h面的可變相位中心不重合。
  12. We found that lots of isi series observed in our lab looked like noise without rule. is the isi series noise or is there any inner rules in it9 how to determine the degree of complexity

    在實驗中，我們觀察到的isi的形式極其豐富，除了少數周期的規則形式之外，大多都表現出雜亂、無規律的形式。
  13. Controlling chaos by the constant periodic pulse method in two coupled standard maps

    用常數周期脈沖方法控制耦合標準映象的混沌
  14. Based on the previous theory, the fdtd method is used to analyze practical antennas, which include dipole antenna, microstrip antenna, log - periodic antenna and broadband resistance loaded monopoles. the particular problems that occur in the calculating of vary type antennas are discussed. the cross - section field of microstrip line and two - conductor line are analyzed, and the effect on the numerical result arising from the incident cross - section mesh size is discussed

    在前面理論的基礎上，將fdtd用於振子天線、微帶天線、對數周期天線、電阻加載振子天線等各種天線的計算中，對各種不同類型天線計算中所遇到的特殊問題進行了詳細的討論，並分析各種開放場傳輸線如微帶線、平行雙線等橫向場分佈，討論了入射網格橫向截斷區域的大小對計算結果的影響。
  15. Exact solutions for a generalized burgers - fisher equation

    橢圓函數周期解
  16. The result demonstrates that the variable phase center of fish antenna is much more steady than the lpda in the main beam

    計算結果表明魚骨天線在主波束相當寬的范圍內，其可變相位中心的穩定度要優于對數周期偶極子天線。
  17. The method of change partial differential equation into ordinary differential equation is classified, the bifurcation and chaos in nonlinear schrodinger system is detected and the effectiveness of controlling chaos of buckling beam with parametric perturbation method is studied in details. chapter 7 is the summary and conclusion of the dissertation

    第六章總結歸納了將非線性偏微分方程轉化為常微分方程的變換法，研究了一維無界區域上非線性薛定諤方程的分岔和混沌性質，解析地研究了用參數周期擾動法控制屈曲梁的混沌運動的效果。
  18. In the analysis of log - periodical antenna the concept of diagonal field symmetric is introduced for the first time, and hence the calculating mesh size is reduced to half. in the calculation of circular polarization microstrip antenna, the effect of finite substrate is described

    在對數周期天線的分析中，首次引入了對角線場對稱的概念，使得計算區域減小一半；在圓極化微帶天線的計算中，詳盡地討論了介質截斷的大小對天線性能的影響。
  19. The method of moments is used to analyze and calculate the broadband characters of impedance, voltage satanding wave ratio ( vswr ), gain and radiation pattern of larger angle lpda, and the relation between these characters and the parameter of antenna construction is discussed in this paper. based on analysis and calculation, the antenna is designed and tested, and the measured results are in good agreement with the theoretical calculation

    本文採用矩量法分析和計算了對數周期天線在張角較大時，它的阻抗、電壓駐波比、增益及方向圖的寬帶特性，討論了這些特性與天線結構參數之間的關系.根據分析和計算，設計並製作天線進行實驗測試，理論計算和測試結果表明，兩者吻合較好
  20. Under the different wave heights, the variation of the reflection coefficient with wave - period, the resonant periods and the maximal reflection coefficients are almost the same

    兩種入射波高對應條件下的反射系數-周期（ kr - t ）曲線形狀相似，共振周期基本一致，最大反射系數相差不大。
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