準周期性 的英文怎麼說

中文拼音 [zhǔnzhōuqīxìng]
準周期性 英文
pseudo-periodicity
  • 準 : Ⅰ名詞1 （標準） standard; guideline; criterion; norm 2 （目標） aim; target Ⅱ動詞1 （依據; 依照）...
  • 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 ...
  1. The other is train communication network. based on the protocol of " iec 61375 - 1 ", published by iec in 1999, the data to be transmitted is classified into urgent periodic variables and deferrable random messages. in this paper the whole net is decomposed into two layers : train bus and vehicle bus

    文中參考iec組織1999年公布的「 iec61375 - 1 」標準協議，將整個列車網路分為連接各個車廂主機的上層列車總線網和連接單個車廂內負責控制、檢測等子設備的下層車廂總線網，同時將傳輸的數據類型區分為實時的周期性過程數據和可延遲的偶發性消息數據。
  2. The phenomenon of noise - induced transport of brownian particles in periodic and quasi - periodic systems with coupling between multiplicative colored noise and additive white noises is investigated

    在含有耦合的乘性色噪聲和加性白噪聲的周期性和準周期性系統中，我們分析了噪聲誘導的布朗粒子的輸運現象。
  3. Two different kinds of approximate theories for analyzing colored noise are employed in the nonlinear system. then effects of the colored nature of the noise on the statistical properties of the laser system, the stochastic resonance of bistable system, and the steady - state probability current of quasi - periodic system are investigated

    本文主要通過兩種不同的色噪聲近似理論，分析了非線性系統噪聲的有色性對激光系統的統計性質、準周期性系統的定態幾率流和雙穩系統中的隨機共振現象的影響。
  4. 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。
  5. Standard specification for phase change - type disposable fever thermometer for intermittent determination of human temperature

    人體溫度周期性測量用相位變化型易處置體溫計的標準規范
  6. Abstract : we have studied the spontaneous emission from a three - level atom with an external - driving field in a photonic crystal. as a result of quantum interference and photon localization, the population in the two upper levels displays quasi - oscillatory oroscillatory behavior. this depends on the initial atomic state and the relative positions of the two upper levels from the forbidden gap. the intensity and the phase of the external field can affect spontaneous emission from the atom. the properties are different from a three - level atom either in vacuum or in aphotonic crystal without an external driving field

    文摘:討論了在雙光子驅動場作用下，三能級原子在光子晶體中的自發發射問題.由於量子干涉和光的局域化作用，兩個上能級中的占據數將具有周期振蕩或準周期振蕩的性質，這不僅依賴于兩個上能級與禁帶的相對位置，同時也依賴于原子的初始狀態，而且還與驅動場的強度、驅動場的入射位相有關.這些性質既與真空中帶有驅動場的原子的自發發射性質不同，也有別于無驅動場作用下光子晶體中三能級原子的自發發射性質
  7. The measurement of the friction moment and motor torque wave verifies that the stribeck friction model is accurate and the wave is periodic

    進行了摩擦力矩和電機波動力矩的實驗測試，實驗驗證了非線性摩擦模型的準確可靠性，電機力矩波動的周期性。
  8. However, information asymmetry could actually exist during certain periods or within certain sectors, which leads to market valuation cycles. on one hand valuation cycles have significant influence on the way external investments are made. on another hand, during those cycles, valuation criteria may be significantly different for short term and long term

    一方面資本市場的高漲或低迷會影響公司對投資方式的選擇，另一方面市場的周期性導致其對公司短期和長期評價標準的不一致，如果公司不考慮這些因素，就可能受到市場負面的評價，從而影響融資和經營。
  9. This thesis focuses the research on the theory and application of the electro - optic effect in the quasi - phase - matching ( qpm ) nonlinear optics based on periodically poled lithium niobate ( ppln )

    本文旨在對電光效應基於周期性極化鈮酸鋰（ ppln ）的準位相匹配（ qpm ）非線性光學中的理論及其應用進行研究。
  10. In this thesis, the main contents are following : 1. reviewing the theory of nonlinear frequency conversion. quasi - phase - matching is discused. presenting the method for configuring periodically poled as well as multiple period superlattice

    闡述了非線性頻率變換的原理，討論了相位匹配和準相位匹配技術，著重說明了周期和準周期光學超晶格的工作原理。
  11. The dma 4100 can be set to give periodical calibration requests and the results of the calibrations are stored in the instrument ( iso requirement )

    Dma 4100可設置為周期性校準要求，且儀器自動保存校準結果（ iso要求） 。
  12. If the pc is being used during this calibration cycle, the power management properties must be disabled to allow the battery to completely discharge

    如果電腦正在利用這段校準周期電源管理性能必須禁用，讓電池完全放電
  13. Standard practices for resistance of adhesives to cyclic laboratory aging conditions

    膠粘劑耐周期性實驗室老化條件的標準試驗方法
  14. Because of the randomness, the periodicity and the impact property of load changes, the short - range electric load forecasting accuracy is related to the pre - processing of original data, the load forecasting model, the sudden change of climate etc. without an appropriate mathematical model, it is difficult to meet the demand of farecasting accuracy by using computer software

    短期電力負荷預報的準確度與原始數據的預處理、負荷特性、預報模型、氣候突變等因素有關，因為負荷變動具有隨機性、周期性和沖擊性的特性，如果不採用恰當的數學模型，利用計算機軟體技術就難以滿足預報準確度要求。
  15. Effect of defects on transport properties in quasiperiodic nanoscaled magnetic quantum structure

    缺陷對準周期磁超晶格輸運性質的影響
  16. When the performance degradation is caused by the discrete cumulative damages, the degradation failure model based on renewal process is proposed and used to analyze the reliability of metallized film pulse capacitors in the laser device. when the degradation process is continuous, two models based on wiener - einstein and gamma processes are presented respectively. because it is difficult to obtain an analytical expression of the failure model using the latter method, we present a failure model based on monte - carlo simulation

    根據該模型的特點，給出了基於參數回歸分析的統計推斷方法，分別提出基於比例危險模型的競爭失效分析方法和基於位置-尺度模型的競爭失效分析方法; （ 4 ）對于隨機失效閾值問題，研究並給出了相對失效標準下的退化失效模型和分析方法;對強度退化的動態應力-強度干涉失效進行分析，提出了周期性應力作用下的動態應力-強度干涉失效可靠性模型和復合應力作用下動態應力-強度干涉失效可靠性模型。
  17. In this thesis, author briefly introduces basic theory of fdtd method at first, and research the method for analysing fss : the finite difference time domain combined with periodic boundary condition ( pbc ) and absorber boundary condition ( abc ) becomes the accurate and efficient tools for analysing frequency selective surfaces

    其中時域有限差分法（ fdtd ）是求解麥克斯韋微分方程的直接時域方法。本文從fdtd的基本演算法原理出發，研究了頻率選擇表面的特性分析。其中包括了fdtd方法與周期性邊界條件、吸收邊界條件相結合，形成分析各種周期性結構準確、有效的通用工具。
  18. Research on gain of doped photonic crystal fiber with raman amplification of soliton

    準周期結構一維光子晶體的帶隙特性與濾波特性
  19. Firstly, acoustic waves propagation in id quasi - periodic system is studied by means of the transfer matrix method. the transmission rate, reflection rate, energy flow, logarithmic energy flow, energy density and lyapunov exponent are obtained numerically. we explain all these parameters " relations with frequency and the size of system, and compare these p arameters with those o f periodic system. we find that these parameters are fractal in this quasi - period system

    通過轉移矩陣的方法，數值地得到了系統的傳播系數t _ n 、反射系數r _ n ，能流密度j _ n 、能量密度e _ n 、李雅譜諾大指數_ n ，給出了以上各量與系統大小n以及頻率之間的關系，發現這些量存在著與周期系統不同的準周期性質，其能量會出現局域化現象，能流以及能量密度都具有分形結構，給出了相應的理論解釋。
  20. This paper assesses and analyses disaster degree of flood - waterlogging disaster by use of three - factor influence assessment method. it establishes the synthetic disaster index model and analyzes the in fluence degree of different disaster factors on synthetic disaster condition by use of the method of continuous substitution. the study results show as follows. the variation of disaster degree has the features of quasi - period and of development by stages ; the factors of flood disaster condition are the main influence factors on variation of synthetic disaster condition ; the influence direction of different factors are not all the same, and the factors that enlarge disaster condition show the new characteristics of flood - waterlogging disaster ; because the waterlogging disaster is serious da ybyday, the control of waterlogging must be strengthened

    運用三因子聯立評估法，評定了洞庭湖區洪災，澇災和洪澇災的災度，進行了相應的分析;構建了洪澇災情指數，並運用聯環替代法對各災情因素的影響進行了分析.分析得出:洞庭湖區洪澇災度具有階段性和準周期性等特徵;洪災災情因素是綜合災情變化的主導影響因素;各災情因素影響方向不完全一致，其中起放大作用的因素反映出洪澇災害的新特點;澇災日趨嚴重，應加強澇災治理
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