periodicity 中文意思是什麼

音標 [ˌpiəriə'disiti]
periodicity 解釋
n. 名詞 1. 定期[周期]性；間發性；周期數。
2. 周率，頻率；【電學】周波；【醫學】定期發作；【天文學】定期出現；【化學】周期表中的位置。

  1. In some cell lines there is a similar periodicity in changes of cell surface antigenicity or response to wheat germ agglutinin.

    在某些細胞系中，細胞表面抗原性或對表胚凝集素的反應方面有相近似的周期性變化。
  2. By using the processing method of sliding time window, the problem of the periodicity range ambiguity is solved. meanwhile, the problem of range ambiguity which is produced because the range of target is biger than the maximum range of radar is also solved by using this method. then, the pulse width parameter which is the most important in the parameters of fmicw is analyzed. the stricter restrict is given to ensure the range spectrum has only one beat frequency after signal processing. at last this thesis introduces the different signal processing methods of fmpcw and fmicw

    同時利用該方法解決了fmpcw信號的由於目標距離超過雷達的最大單值測距范圍而引起的距離模糊問題。然後對fmicw波形參數中最為重要的脈沖寬度進行了分析，給出了更為嚴格的約束條件，保證了信號處理后距離譜峰值的唯一性。最後，分別介紹了fmpcw和fmicw信號的不同處理方式，並對兩者不同的時域濾波性能進行了比較，並對二者的差異進行了分析。
  3. Based on the analysis of the beat frequency signal, the expression of the beat frequency phase is deduced. the expression indicates physics meanings of quantities to be detected and supplies theoretical bases for detection methods. by using two - dimensional fft, the range and velocity information of target is got out from the echo. according to the periodicity range ambiguity of symmetrical pulses in fmpcw, the processing method of sliding time window is used

    通過對差頻信號進行的分析，得出了差頻相位的具體表達式，表現出了要檢測的各量的物理意義，對檢測的方法提供了理論依據。利用二維fft方法，可以有效地提取回波中目標的距離與速度信息。對于fmpcw信號由於均勻脈沖產生的周期性距離模糊的問題，採取時間波門的處理方法。
  4. This text firstly wields theories and ploys as strategical administration matrix, balance - point of profit and loss, five competitory models and burgeoning strategical administr ation, which is to make a comparatively embedded analysis on broadband inside - and - out side condition including technical level, consumer characters, competitive status and mark eting status, etc, to bring forward available correspondence hypothesis of consumere and to put forward two ways - out for small - and - medium sized providers by swot matrix and big strategy matrix. one is gradualism retreat tactic. considering the particularity of broadband network industry, this text gives the design of gradualism retreat pattern. the other is incorporate strategy of scale domino and much more effective negotiationchip. especially, this text puts emphasis on discussion of incorporate implement methods, proposing to adopt the way of demanding contrast prise - fixing and output pluralism of products so as to induce the consumers to cut down marketing breeding periodicity, use crm to establish core competity for small - and - medium sized providers and simultaneously lay a foundation of next commingle dealing in this field

    本文運用戰略管理理論中戰略管理模型、價值鏈、盈虧平衡點、五種競爭力模型、新興產業戰略管理、市場營銷學等思想理論和方法，對寬帶網產業內外環境（包括技術、競爭狀況、市場狀況等）進行詳細分析，總結了中小型寬帶網運營商在市場營銷、資源配置、經營成本、產品結構、政策管制等幾個方面的優劣勢，並析出其中的關鍵因素，運用大戰略矩陣、 swot分析矩陣，提出中小型寬帶網運營商一進一退兩種截然不同的發展戰略，即「漸進式退出」策略和「一體化」策略。
  5. The results of simulation indicated speech signal processed by the optimum algorithm presents obvious periodicity in time domain, and effect of the formant is removed or restrained effectively in frequency domain

    處理后的語音信號在時域上表現出明顯的周期性特徵，同時在頻域上也觀察到聲道的共振峰結構影響得到消除或有效的抑制。
  6. Research on the geomagnetic main field periodicity

    地球主磁場的周期性特徵
  7. Based on the speech produce model, we find the reason of periodicity disappearance and the extremum number increase by analysing the character of speech signal when the glottal closes

    於是從語音產生模型入手，詳細的分析了聲門閉合時刻語音信號的性質，找到了濁音信號經過小波變換後周期性消失、極值點個數增多的原因。
  8. The three kind distributions are periodicity distribution, multiplier periodicity distribution and the golden section distribution

    三性分佈是指周期性、倍周期性和每個周期的黃金分割性組成的時間分佈。
  9. Regular irregularities occur with constant periodicity and are usually associated with partial heart block.

    規律的不整脈隨固定周期出現，而且常伴有心臟部分傳導阻滯。
  10. In fact, the economic law is inconvertible. knowledge economy, the economy that based on knowledge, whose appearance explains why the periodicity is not obvious. in the new economic forms, the leading factors have changed a lot, that is, the intangible factors like knowledge, technology, and information play much greater roles in the economic growth

    實際上，經濟規律是不可改變的，周期性不明顯是因為出現了以知識為基礎的經濟? ?知識經濟，在新的經濟形態中，起主導作用的要素發生了變化，即知識、技術和信息等無形要素在經濟增長中的作用超過了以往任何時候。
  11. One of the most noticeable features of the middle miocene rock layers was their periodicity

    中新世中期的巖層，最顯著的特徵之一，就是這些巖石所呈現的周期性。
  12. Periodicity of nuclear properties began to show up.

    原子核性質的周期性開始顯示出來了。
  13. Algorithm analysis of periodicity of relational matrix

    關系矩陣的周期性演算法分析
  14. Faure sequence ' s periodicity and its fast building

    序列的周期性及快速構造
  15. A proof of the periodicity theorem of complex clifford algebra

    代數周期性定理的一個證明
  16. Almost periodicity for n - species cooperation system with time delay

    種群互惠系統的概周期性
  17. The relation between the periodicity of

    周期律和概率周期律的關系定理
  18. The superlattice periodicity occurs along the diamond [ 001 ] direction and corresponds to the quintupling of the primary ( 002 ) periodicity

    超點陣周期沿金剛石結構的[ 001 ]方向，相當于（ 002 ）基本周期長度的五倍。
  19. Because the speech signal is periodicity at sonant which vocal cords surge in low frequency and similarity to white noises at surd, the pitch can be detected in traditional way through the correlation operation without the speech produce model

    在人類語音的濁音段，聲帶發生較低頻率的振蕩，語音信號呈明顯的準周期性，而在清音段，語音信號則類似於白噪聲。
  20. Periodicity of supervising bank ' s capital and its effects to economic undulation

    銀行資本監管順周期性及其對經濟波動的影響
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