函數的周期性 的英文怎麼說

中文拼音 [hánshǔdezhōuqīxìng]
函數的周期性 英文
periodicity of function
  • 函 : 名詞1. [書面語] （匣; 封套） case; envelope 2. （信件） letter 3. （姓氏） a surname
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 的 : 4次方是 The fourth power of 2 is direction
  • 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
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 函數 : [數學] function函數計算機 function computer; 函數計算器 function calculator; 函數運算 functional operation
  1. Apparently as λ approaches infinity the resulting function will no longer appear periodic.

    顯然當趨于無窮大時所得到的函數將不再是周期性的。
  2. Biorthogonality of multidimensional periodic scaling function with arbitrary dilation matrix

    具有一般伸縮矩陣高維周期尺度函數的雙正交性
  3. It is found that in the absence of dissipation and average photon number of the reservoir the linear entropies of the atom and the field varies with time periodically, going to zero at the disentanglement times, and the period is the same as that of bell function and the linear entropy of the total system is zero at any time. if the cavity dissipation and the average photon number of the reservoir is taken into account, the linear entropies of the atom and the field present local maxima and minima and the difference between them diminishes with time, tending to asymptotic values

    結果表明，在忽略腔損耗和熱庫的平均光子數時，原子和場的線性熵有周期性的變化，在沒有糾纏的時刻，值為0 ，此時的周期與bell函數相同，而系統的線性熵在任何時刻都為0 ；如果考慮到腔場的損耗和熱庫的平均光子數，原子和場的線性熵有局部的最大值和最小值，它們之間的差距隨時間逐漸減小，趨向一個漸進值。
  4. The detail is clarified as follows : l ) based on the chaotic technology and contemporary encryption approach the paper put forward a new chaotic sequence, which introduced the m - sequence and the method of shrink key - the stream generator. the complexity of the sequence was promoted as the random alteration of the parameters of chaotic mapping, and at the same time, the shrinking key was used to enhance the security further more ; 2 ) the performance of one - way hash function was improved and new hash function construction methods are proposed through a novel hash method based on chaotic mapping and the aes - the rijndael algorithm. the algorithm of hashing messages of arbitrary length into 256 bits hash values was designed

    按照這種方法，輸出序列的周期性得以大大提高，理論分析和計算機模擬結果表明，該方法可以產生具有良好統計特性的密鑰流，而且易於軟硬體實現： 2 ）實現了一種基於混沌映射和分組密碼rijndael演算法的單向hash函數的構造方法，即使用logistic混沌映射產生混沌二值序列，序列的分組與明文序列分組進行按位異或后，進入rijndael加密模塊，所得的結果再加入到反饋端，參與下一分組輸入的異或運算，迭代結束時的rijndael加密結果即為所求的hash函數值。
  5. Based on vibration principle, the paper establishes dynamics analysis model of output shaft with elastic support, according to fourer series spread principle of periodic function, the dynamic response formula is derived by separating complex vibration force into sum of many simple harmonic excitation function of whole number times frequency relations. the result shows that response of both sides support is synchronous when load distribution non - uniform coefficient is 1

    依據振動理論建立了具有彈性支撐的輸出軸的動力學分析模型，根據周期函數的傅里葉級數展開原理，將復雜的激振力分解成為多個頻率成整倍數關系的簡諧激勵函數，導出了動態響應表達式，結果表明，當載荷分配不均勻系數為1 . 0時的輸出軸兩端支撐同步。
  6. We propose in this paper an evaluation method for the transient performance of das, through the period signal, by utilizing the much smaller difference than sampling period between the multi - periods of signal and the multi - sampling periods, getting shorter equivalent sampling period ( i. e. higher equivalent sampling rate ), which is derived from input signal period and sampling period, and then, the problem that how to get the transient performance of das has been solved. the transfer function of das is then evaluated and identified, and practical test results are also presented

    本文介紹一種方法，通過對其加載特定的周期性輸入信號，使用采樣周期的整數倍和信號周期整數倍間的微小偏差，獲得比實際采樣周期小得多的等效采樣周期，從而解決了數據採集系統瞬態響應特性的獲取問題；並進而獲得了數據採集系統傳遞函數的辨識和評價結果，實現了數據採集系統瞬態特性的總體評價。
  7. Because of that there is a lowest limit of the sampling rates of each data acquisition system, that is the sampling rate can not be at any value ( especially it can " t be at any high enough ), one can " t get the transient performance of das sometimes, and it may limits the evaluation of their transient performance

    由於采樣周期是有下限的，即採集速率不可能無限高，這在實際應用中常常限制了其瞬態響應特性的獲得，因而也限制了其傳遞函數的辨識和評價。
  8. Numerical stability of interpolation functions of cubic periodic spline

    三次周期樣條插值函數的數值穩定性
  9. Random process theory is a kind of effective mathematical tool to handle random vibration problem. through frequency spectra and time domain analysis for random course, the seemed complex vibration time - history can be transferred to trigonometric function series, thus makes it have certain periodic feature

    隨機過程是處理隨機振動問題的一種有效的數學工具，通過對隨機過程進行時域分析和頻譜分析，可以將看似非常復雜和毫無規律的隨機振動表示為三角函數的級數形式，從而使其具備了一定的周期性特徵。
  10. Based on summarized and analyzed the existing problems of the solution for scheduling rtrpmt and tft, the author constructs a new heuristic function which adequately takes predecessor and successor relation among tasks into account, targeting that the direct successor of current running task is to be given the earliest time to be run

    針對實時分佈系統中大量的相關周期性多任務，在分析、總結了前人對此類任務的調度演算法解決方案所存在的問題基礎上，構造了一種新的啟發函數，該啟發函數充分考慮了任務之間的前驅、后繼關系，以當前任務的直接后繼具有最早開始執行時間為目標。
  11. ( 3 ). the flattening arithmetic of an edfa was presented based on the inter - correlative function between the gain spectrum function of the edfa and that of the reserve transmission spectrum of the lpfg. for optimal matching between the two spectra, the flattening arithmetic calculates the variation of the resonant amplitude and wavelength of the lpfg

    Iii .提出了一種動態增益均衡的平坦演算法，這種演算法的本質就是利用摻鉺光纖放大器增益譜函數和新型長周期光纖光柵的透射譜反轉譜函數的相關性，給出新型長周期光纖光柵諧振峰幅度和位置的調節量，使改變后的新型長周期光纖光柵的反轉譜線能和edfa的增益輸出譜線進行最佳匹配。
  12. Based on these results, the ergotic of 1 - order distribution function of stochastic primary phase periodic process are derived ( corollary 2 )

    利用這些結果，討論了隨機初相位周期過程一階分佈函數的遍歷性（推論2 ） 。
  13. The analysis shows that by using correction function processing to the collected signals, the periodicity of the signal can be checked conveniently, the frequency - domain response of linear systems with uncertain parameters can be identified, useful signals can be checked out and extracted from the noise

    由分析可知，對採集到的信號做相關函數的處理可以方便地對信號的周期性進行檢測，確定未知參數的線性系統的頻域響應，檢測噪聲中有用信號，並對噪聲中的信號進行提取。
  14. In this paper, according to the periodically active characteristics shown in the historical earthquake data in this region since 1900, we describe the rule of seismicity with sine function and furthermore make a preliminary forecast of the seismicity intensity and the developing trend in northeast china till the year of 2008 by using the periodogram of time sequence and other analytical methods

    摘要根據東北地區1900年以來的歷史地震資料所顯示的周期性活動特點，用正弦函數描述其地震活動規律，並結合時間序列的周期圖及其他一些地震活動性分析方法，對該地區未來1 ~ 3年地震活動發展趨勢和地震強度作了初步預測。
  15. The whole paper consists of three parts : part is about general theory of the least positive period, which argues the necessary and sufficient condition for the existence of the least positive period for a periodic function, and concludes " the existence of the least positive period for that periodic function, which is continuous at least one point and not equal ever to a constant " ; part researches the least positive period for the sum of two periodic functions, followed its general expression ; part discusses non - periodicity for the compound function constructed by a periodic function and a non - periodic function, and the corresponding results

    全文分為三部份：第一部份是關于最小正周期的一般理論，得到了周期函數有最小正周期的充分必要條件，也獲得了「至少在一個點連續且不恆等於常數的周期函數必有最小正周期」的結論；第二部份分析了兩個周期函數之和的最小正周期的問題，給出了其一般表達式；第三部份討論了周期函數與某些類型的非周期函數構成的復合函數的非周期性問題，並得出相應結論。
  16. The exo - atmospheric combat enviroment is introduced, including the outer - space ’ s optical signature, the optical and dynamic signature of the potential targets. the research focus is the precessing rv and tumbling decoy ’ s irradiance intensity ’ s periodical changing rule. a double periodical function model is presented to simulate their irradiance functions

    根據空間彈道目標的光學與運動學特性，重點研究了進動旋轉的彈頭和翻滾運動的誘餌的光學強度序列信號的周期性變化規律，並採用雙周期性函數來表示該光學強度信號，以反映彈頭和誘餌在運動特性和表面輻射特徵方面的差異。
  17. In the second part of this work, according to cosine function ' s cycle property and using the quantization square choosed by international standards such as jpeg, h261 / h263, mpeg1 / 2, a kind of dct coding algorithm that based on tabling is put forward

    第二部分採用jpeg 、 h261 h263 、 mpeg1 2等國際標準中所選擇的量化矩陣，根據餘弦函數的周期性提出一種基於查表的dct編碼演算法。
  18. Therefore, the modified transformation of triangle function is proposed for the oscillation series, and the monotone series can be obtained. 2

    因此，本論文提出一種變形的反三角函數變換方法，利用反三角函數的多值性，可將周期振蕩的數列變換成單調增加數列。
  19. Properties of uniform almost periodic matrix function

    一致概周期矩陣函數的一些性質
  20. By using properties of scalar almost periodic function, properties of uniform almost periodic matrix function are discussed

    摘要利用純量概周期函數性質討論了一致概周期矩陣函數的一些性質。
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