時諧波 的英文怎麼說

中文拼音 [shíxiébō]
時諧波 英文
time-harmonic wave
  • 時 : shí］Ⅰ名1 （比較長的一段時間）time; times; days:當時at that time; in those days; 古時 ancient tim...
  • 諧 : Ⅰ形容詞1 （和諧） in harmony; in accord; in tune 2 （詼諧） humorous Ⅱ動詞（商量好; 辦妥） come t...
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  1. The results show that : l ) there are three anomalous high temperature areas and three anomalous low temperature areas, and the whole area high temperature anomaly took place in the late 1980s, whereas the low temperature anomaly in the 1970 ; 2 ) the spatial mode manifests identical variations in the whole area, and the temporal coefficient curve is of 2 - 3 year period oscillation and an interdecadal abrupt in the late 1970s ; 3 ) the variance of interdecadal component is obviously larger than that of interannual in the most part of nespa ; 4 ) the interdecadal variation of the temperature is mainly linear ascendance in the late 1970s, the large range anomalous high ( low ) temperature occurs when the interdecadal and interannual anomaly are both positive ( negative ) in the year ; 5 ) the temperature anomaly is divided into four patterns : southern, northern, eastern and western patterns, in which the interdecadal variation of the southern and western patterns is relatively importance and the interannual variation of eastern and northern pattern is relatively importance

    本文用夏季（ 6 - 8月）中國東北地區91個測站44年氣溫資料，對該區夏季氣溫的氣候平均和異常場進行分析，採用諧波分析將異常變化的年代際、年際尺度分量分離，分別分析兩種尺度上氣溫異常的時空特徵，最後應用reof進行了氣溫異常的區劃，研究局域異常變化的年代際、年際分量的變化特徵。結果發現： 1 ）東北夏季有三個異常高溫高發區和三個異常低溫高發區。全區性異常高溫（低溫）階段出現在上世紀80年代后（ 70年代） 。
  2. Firstly, second harmonic component ratio and dead angles of two phase inrush ' s dispersion in three - phase transformes are acted as input variable. secondly, the method applies improved algorithm based on the original algorithm of multi - layer forward back propagation network, that is to say, adding last variational effect of weight value and bias value to this time and making use of variable learning rate. at the same time, this method also adopts dynamic form in the number of hidden floor node

    首先，文中將三相變壓器兩相涌流差流的二次諧波含量比和間斷角作為網路的輸入變量；其次，利用對原有bp網路訓練演算法基礎上的改進型演算法（即在計算本次權值和閾值的變化時增加上一次權值和閾值變化的影響以及採用變學習率，與此同時隱含層神經元個數採用動態形式） ，通過樣本訓練使網路結構模型達到最優。
  3. The addition formula of spherical harmonics function of degree n and order 1 is derived using the relations between coordinate varieties after coordinate rotating and the property of the associated legendre polynomial. the relations among the magnetic vector potential, the modified magnetic vector potential and the second - order vector potential ( sovp ) are shown going forward one by one. it is explained that the solutions of electromagnetic fields in different coordinate systems can be transformed and an example having analytical solution is given

    利用坐標旋轉后球坐標變量間的關系和連帶勒讓德多項式的性質推導得到了n次1階球諧函數的加法公式；以遞進的方式說明磁矢量位、修正磁矢量位與二階矢量位的關系，寫出了引入二階矢量位的過程；以時諧場矢量邊值問題為例，闡明了不同坐標系下電磁場解的相互轉化原理，給出了一個解析解的轉化例子；在球坐標下，引入了較球矢量波函數更普遍的兩類矢量函數，給出了其在球面上的正交關系。
  4. The numerical results show that the time domain response of the laminated plates induced by the in - line force of non - steady component oscillating flow is similar to harmonic motion with certain ribbon which is formed by period motion

    計算結果表明，零均值流量脈動流順流向作用力誘發反對稱角鋪設層合板的時域響應近似於具有一定帶寬的諧波運動，而這一帶寬又是由一定周期運動形成的。
  5. The time harmonics can be considered as voltages of higher frequencies applied to the windings.

    時間諧波可以看作是施加在繞組上的較高頻率的電壓。
  6. There is great change of negative current component when it happens the line - open fault. it is marked as the occurrence of the fault. and it can be concluded the phase characteristic of negative current in the line. in the transient course, there are plenty of harmonics in the fault line. through the transient analysis, it is drawed that the amplitude of each harmonic in fault phase is greater than other phases. harmonic current in fault line is far greater than other normal lines

    發生斷線故障以後，線路中會出現負序電流的突變，可以作為故障啟動判斷的標志，並且通過分析得出了故障時負序基波電流的相位特點。在故障暫態過程中，故障電流中含有大量豐富的諧波成分，各次諧波在故障期間有突變，並且衰減很快。
  7. Abstract : temporal properties of the second - ordre process with a chirped incident pulse are theoretically calculated. the chirp influences the irradiance and the pulse shape of the second harmonic wave with large phase mismatch. the phase distortion of all three waves is dependent more strongly on the chirp than on the phase mismatch

    文摘:討論了在大相位失諧下，基波為頻率啁啾脈沖的二次諧波產生過程，結果表明選取合適的啁啾參量可以使二次諧波的光強提高，但同時會使其波形和相位發生變化.三波相位的畸變主要取決于入射的基波啁啾脈沖，而與相位匹配的失諧量關系不大
  8. In particular, pod has been applied to defining a wave superimposition based procedure for the digital simulation of multi - variate random processes and correlated time series

    Pod還可用於諧波疊加法模擬多個相關的風荷載的時程。
  9. The approximate computation method is used in float point computation of system ' s control algorithms on fixed - point dsp after comparing several methods in respect of running time and program space involved, which attains quick computation besides high precision and implements output voltaic with low harmonic and high control precision of frequency

    通過從運行時間和佔用空間等方面比較在定點dsp上實現浮點數運算的幾種方法，並選擇了近似計演算法作為系統控制演算法浮點數運算的方法，在保證足夠計算精度的前提下達到計算的快速性，實現低諧波和頻率控制精度高的輸出電壓。
  10. With adaptive ability, harmonic current detecting approach, based on ann, can accurately and real - timely detect harmonic currents for power network

    基於人工神經元自適應的諧波電流檢測方法，能夠準確、實時地檢測電網中的諧波，且有一定的自適應能力。
  11. In view of this situation this article has conducted research to the design of metallurgy auxiliary biography with the frequency conversion table electrical machinery first multianalysis to the frequency changer and the frequency conversion table electrical machinery movement characteristic is carried out, the voltage waveform harmonious which the frequency changer outputs is big, attacks in a big way, and the voltage climbing rate reaches as high as 6600v / mu s which is 20 times ordinary sine alternating voltage, the rolling mill auxiliary biography table set the extremely strict request to the electrical machinery ; its movement frequency is very low, rate frequency in 8 - 20hz ; the velocity modulation scope is wide, the lowest movement frequency lowers to 1hz, and the starting number of times is quite frequently, each hour reaches as high as 600 - 800 time, the impact shoulders in a big way, the overload capacity request is high

    針對這一情況本文對冶金輔傳用變頻輥道電機的設計進行了系統研究。首先對變頻器和變頻輥道電機的運行特性進行詳細分析，變頻器輸出的電壓波形諧波大，沖擊大，電壓上升率高達6600v / s ，是普通正弦交流電壓的20倍;軋機輔傳輥道對電機提出了十分嚴格的要求:其運行頻率很低，額定頻率在8 - 20hz ;調速范圍寬，最低運行頻率低到0 . 5hz ，起動次數相當頻繁，每小時高達600 - 800次，沖擊負荷大，過載能力要求較高。
  12. All sorts of imperceptible factors making the system get worse, including the harmonic of the inverter and magnifying of dv / dt over long cable and the effects after applying the inverter. i applied the three - level main circuit structure to the esp system, so that the high voltage problems resulted by low endureing voltage can be solved, at the same time avoided the voltage distributing because of devices in series

    為此本文將三電平主電路結構運用到潛油電泵變頻系統中，以解決由於當前器件耐壓較低而要求實現中高壓問題，同時避免了由於器件串聯而引起的均壓問題，具有諧波含量較二電平變頻器要低和體積較低壓單元串聯方式要小等特點。
  13. ( 3 ) in the condition of invariable instantaneous speed ratio, the equations of teeth surface of all key components, such as end face gear, oscillating teeth, wave producer, et al, are deduced

    （ 3 ）在保證瞬時傳動比恆定的條件下，由空間嚙合原理出發，重點推導了活齒端面諧波齒輪傳動裝置的主要傳動部件? ?端面齒輪、活齒以及波發生器端面凸輪的齒面方程。
  14. The researching intention of this paper is to establish a high precise and real time harmonics measuring system

    本論文研究的方向是建立一個高精度實時諧波測量系統。
  15. This paper does simulation analysis of this model, especially emphasizes on harmonic analysis of the power grid. and some changing rules and influencing factors of this vector operation system are deduced

    對該模型進行了模擬分析，並著重對交-交變頻同步機系統注入電網諧波進行了研究，得出交-交變頻同步電機系統運行時諧波的一些變化規律及其影響因素。
  16. Besed on the circuit, electromagnetism and electric power electronics theories, we have done some theory research on the harmonics induced by thyristor commutate circuits of ac - dc locomotive, surge electromagnetism process. we calculate the theory content of harmonics using the fourier arithmetic under thyristor commutate and surge electrmagnetism process

    論文根據電力機車類型的不同，運用電路、電磁場和電力電子學理論研究了交?直型電力機車相控整流時諧波的產生機理、勵磁涌流的電磁過程，並對晶閘管相控整流和勵磁涌流時的理論諧波含量進行了傅里葉分析。
  17. In chapter 3, a new method for real - time harmonics cancellation based on frequency shifting principle is deduced

    第三章提出了一種基於移頻思想的實時諧波消去演算法。
  18. Fault feature in stator current is extracted by singularity detection of signals with half - complex wavelet transform and it can be helpful to the real - time detection of motor fault. harmonics caused by the fault of motor is detected accurately with real - time harmonics cancellation method. steady state current and starting current in stator are analyzed with real - time harmonics cancellation method and the improved harmonic wavelet separately, after that the feature component of rotor fault can be detected successfully

    採用半復小波變換對電機定子電流進行奇異性檢測，提取故障突變信號，有助於電機故障的實時診斷；通過實時諧波消去法檢測定子故障引起的高次諧波電流；採用改進的實時諧波消去法精確提取電機穩態電流中的轉子斷條故障特徵分量；為了進一步提高轉子斷條故障診斷精度，利用改進的諧波小波對電機起動電流進行時頻分析，提取轉子斷條故障特徵。
  19. But when the signal involves noise, the singular signal does not appear sharply in the time - frequency contour of harmonic wavelet

    但當信號中存在噪聲時，諧波小波分解的時頻等高線圖無法凸顯其奇異成分。
  20. The series of results showed that there is a close relationship between the ionization probability and the pulse - shape, which in turn affects the hhg. when the pulse is turned on very slowly or rapidly the character of hhg wo n ' t be obvious. only if the turn - on is proper the spectrum of hhg will be ideal

    當激光脈沖的時間長度不變時，脈沖開啟的快慢會影響到電離率和高次諧波，開啟很慢或很快時，諧波的平臺結構都不明顯；只有在適當的開啟下，電離率處于中間值，這時高次諧波譜線才比較理想。
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