正頻率 的英文怎麼說

中文拼音 [zhēngbīnlǜ]
正頻率 英文
positive frequency
  • 正 : 正名詞（正月） the first month of the lunar year; the first moon
  • 頻 : Ⅰ形容詞（次數多） frequent Ⅱ副詞（屢次） frequently; repeatedly Ⅲ名詞1 [物理學] （物體每秒鐘振動...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 頻率 : frequency; rate
  1. Epinephrine increases respiratory rate and tidal volume, and thereby reduces alveolar carbon dioxide content in normal subjects.

    腎上腺素增加呼吸頻率和潮氣量，故可降低正常人的肺泡含量。
  2. Positive frequencies are produced by anticlockwise rotation and negative frequencies by clockwise rotation.

    正頻率是逆時針旋轉產生的，而負頻率是順時針旋轉產生的。
  3. We are asking a network or system to attenuate certain frequencies.

    我們正在要求一個網路或系統去壓制某些頻率。
  4. Due to existing signal processing technology ’ s shortage such aslow measurement, narrow measurement range precision and other poor performance, we introduced a high - precise signal processing technology : firstly, to get power spectrum with hanning windowed welch modified periodogram, search its peak value frequency ; secondly, to apply zooming analysis via goertzel algorithm ; at last, to get a highly precise doppler frequency with energy centrobaric rectifying algorithm 。 the simulating result indicated that this technology introduced could get accurate doppler frequency 。 depending on above discussed technology, we designed a signal processing scheme, and developed a signal processing system. the running result showed high performance, verified the feasibility and reliability of the highly precise signal processing technology introduced. in a word, the technology improved ldv ’ s performance such as measurement precision, measurement range, dynamic response time 。 and it will have a wide application foreground

    針對存在的缺點，本文提出了一種應用於激光多普勒測速的高精度信號處理技術，即首先利用加hanning窗的welch修正周期圖演算法得到信號功率譜，搜索其譜峰值頻率，接著利用goertzel頻譜細化演算法對搜索的譜峰進行細化分析，再引入能量重心頻譜校正演算法對細化后的譜峰進行校正分析，從而將離散頻譜分析演算法、頻譜細化演算法和頻譜校正演算法三者有機結合起來，充分發揮各自的優點:通過加hanning窗的welch修正周期圖演算法快速得到功率譜及峰值頻率，通過goertzel演算法獲得分析頻帶的高解析度頻譜，然後通過能量重心校正演算法對細化后的頻譜進行高精度校正，這樣不僅保證了演算法的高效性，而且大大提高了分析的精度。
  5. Rebecca oxford ' s strategy inventory for language learning was employed to study six types of learning strategies : memory strategy, cognitive strategy, compensation strategy, metacognitive strategy, affective strategy and social strategy and their effects on the reading, listening, writing, cloze, grammar and oral test performance of nmet

    研究結果表明，在各項策略中，補救策略、元認知策略、認知策略使用頻率相對較高，而記憶策略、情感策略和社會策略使用頻率較低。學習策略與高考成績有顯著的正相關。
  6. The former refers to the normal use, including the enlargement in the scope and improvement in the frequency of some words as well ; the latter is just on the contrary, mainly showing as the narrowing of the scope and the reducing of the frequency, and quite a few of commendatory words trend derogatory

    前者是指正常的使用，也包括某些詞語使用范圍的擴大和使用頻率的提高；後者正好相反，主要表現為使用范圍的縮小和頻率的降低，另外還有相當一部分詞語由褒趨貶。
  7. We try to find a correction to the frequency of waves.

    我們試圖找出對波的頻率的改正量。
  8. It means that there is no first-order correction to the frequency of waves.

    這就意味著，不存在對波的頻率的一階改正項。
  9. How many people can really attain such a level ? this disharmonious atmosphere is discernible even to the average person who does not practice spiritually, with the exception of a few very ignorant people and those who are as insensitive as timber. the more advanced one is in spiritual practice, the more sensitive one becomes, but when he eventually attains the highest level, every place will be the same to him

    在這個地球上，並非每個地方的振動頻率都是一樣的，因為地球上有各式各類的金屬礦，它們分佈的多寡並不相同，所以不修行的人，常會有很多住得不安穩的地方，但是對一位真正有修行的人而言，每個地方都是凈土，每個地方都是聖地，這種話說起來容易，做起來很難，有幾個人能真正達到這種境界？
  10. The signal we named it fundamental wave ; according to the fundamental wave, coefficients of the fundamental wave can be lined in a sequence. when the unique of the dissolve of the fundamental wave can be confirmed, the sequence of the coefficients can be regarded as one of representation forms of the signal itself ; theory of dissolvable signal shows that when order of the matrix of fundamental wave sampling equals to number of fundamental waves, the sequence of the sampling values from sampling points must be matched one by one with the sequence of the coefficients of fundamental waves. the sampling composed by sequences of the sampling values must be full sampling ; the relevant deductions of the theory of dissolvable signal shows that when sampling the signal, sampling frequency must be lager than the ratio of the number of fundamental waves to the occupation time of the fundamental waves ; to band - limited signals, when the fundamental wave is a sine signal, the results from the relevant deductions of theory of dissolvable signal is coherent to the classic sampling theory

    本文通過分析認為，當信號集中的任一信號可表示為一系列已知信號的線性代數和時，信號集便構成可分解信號集，已知信號稱為基波信號；對可分解信號而言，基波系數構成一序列，當對指定的基波信號集分解唯一確定時，系數序列本身便是信號的一個表示；可分解信號采樣定理指出當基波樣值矩陣的秩等於基波數時，則由采樣點處的采樣樣構成的樣值序列必與基波系數序列一一對應，從而由該樣值序列構成的采樣必為完全采樣；可分解信號采樣定理中的推論指出，對信號集進行采樣，采樣頻率必須大於其信號分解的基波數與其對應時長之比；對有限帶寬信號，若基波信號為正弦信號時，由可分解信號采樣定理推論給出的結論與經典采樣定理一致。
  11. Suppose the speakers both emit a pure sinusoidal sound wave of constant frequency.

    假定兩個揚聲器都發射恆定頻率的純正弦聲波。
  12. By making some assumptions, collision frequency were presented. then the the flocculation kinetics model was established through population balance equation. comparison of experimental data and modeling results indicate that there are the same trend between the two. so the model can predict floes number and size during flocculation of yellow river ' s loess particles without using empirical parameters. the tem and sem were used to obsever floes in the study of floe structure. the flocculation was divided as flocculi, floc and floe aggregate. the floes structure model was established by assumption that particles position in floe accords with tetrahedron. the fractal dimension of model and experimental floes was found to be coincidentso the model can reflect the structure of flocs formed in flocculation of yellow river ' s loess particles by macromolecule flocculant at a certain extent

    最後，本文還對絮凝動力學和絮體結構進行了研究，在前人研究的基礎上，針對高分子絮凝黃河泥沙，對絮凝過程作了一些符合試驗條件的假設，建立了顆粒碰撞頻率表達式，應用了顆粒數量平衡方程，從而建立了絮凝過程的動力學生長模型，模型計算結果與試驗數據對比表明，二者趨勢一致，在沒有使用經驗參數的情況下基本上能夠描述黃河泥沙絮凝過程中絮體數量和尺寸分佈的變化過程；對絮體結構的研究中，應用掃描電子顯微鏡和透射電子顯微鏡對絮體進行了觀察，將絮體分為絮粒、絮團和絮網三個不同的生長階段，通過假設顆粒結合位置符西安建築科技大學博士學位論文合正四面體，建立了絮體結構模型，計算得到的模型絮體分形維數基本與試驗中的實際絮體相符，在一定程度上能夠反映高分子絮凝黃河泥沙生成的絮體結構。
  13. The experiment apparatus has been developed, which is based on software ( labview ) and hardware ( pci board ni 6024e ). the displacements and generative force at the tip of the ipmc actuators were measured with respect to the different voltages, frequents and various waveforms which include square, sinusoidal, and triangular wave

    實驗選取了不同電壓幅值，不同頻率的方波、三角波、正弦波三種波形作為電激勵信號，利用高速攝像記錄ipmc的位移變形，並通過力傳感器實測了ipmc試樣末端的輸出力。
  14. As a rule, the immunosensors is to coat the surface of crystal with antibodies or antigens, immerge to muster solution, binding to the immobilized antigens or antibodies and take place immuno - reaction, can cause a frequency change of the quartz crystal, and the frequency changes are proportional to content of antigens or antibodies in muster solution

    通常將抗體（或抗原）固定於晶體表面，浸入樣液時，與抗原（或抗體）產生免疫反應，使晶體表面質量負載增加，頻率降低，其頻移值與樣液中抗原（或抗體）含量成正比。
  15. Induction heated oil tempered spring wire is a kind of new technical material which has been developed since 1980s. it can be heated by means of eddy induced into itself through electromagnetic coil and this method is mainly used in surface quenching. with correct designing and reasonable current frequency, induction coil and heat treatment process selected, as well as plc controlling applied, the wire can be uniform heated along cross - sectional and longitudinal direction and can be quenched and tempered continuously

    應加熱油淬火-回火彈簧鋼絲，是二十世紀八十年代發展起來的新技術材料，在國外稱為itw induction heat oil tempered spring wire 。是通過線圈電磁感應鋼絲本身產生的渦流進行加熱，通常主要用於表面淬火。經正確設計，選擇電流頻率，合理的感應線圈及熱處理工藝，並實施plc控制，可使鋼絲整個截面及長度上得到均勻加熱，進行連續整體淬火和回火。
  16. The dispersion of dynamic frequency in complicated system is one of reasons which lead the unsatisfactory performance of under frequency load shedding device

    而復雜系統動態頻率的時空分散性正是導致低頻減載裝置動作不令人滿意的原因之一。
  17. 2. the spectrum correcting technique is applied in one dimension distance sidelobe restraining successly and deal with well with this understanding of zero or low doppler frequency and without noise, mussy weaves

    2 、在一維距離旁瓣抑制中成功地應用了譜修正技術，在無噪聲、雜波干擾，零或低多普勒頻率情況下，處理效果良好。
  18. Psittacula agapornis ), oscine passenon ( emberiza rutila ) and the vocalizations of sub - oscine passerine ( melopsittacus undulates, psittacula agapornis ) after sectioning nxiits were recorded by sharp gf - 6060 recorder. cooledit2000, an acoustic analyzing software, was used to produce the original wave and it ' s expanded time windows, sonograms, spectrums and power static histograms. to distinguish the acoustic differences of their natural vocal and to find the changes of sub - oscine passerine ' s song after sectioning nxiits, the above results is acoustically analyzed and compared, expecting to provide some advantage to further explaining the mechanism of vocal production

    本實驗以非鳴禽（家鴿、家雞） ，亞鳴禽（虎皮鸚鵡、牡丹鸚鵡）以及鳴禽（栗? ）為實驗材料，記錄其正常叫聲以及亞鳴禽斷nxiits后的叫聲，用cooledit2000聲音處理軟體制出原始信號及其展開圖，聲圖，頻率譜圖以及能量統計分布圖，並對所得結果進行聲學比較分析，以期得到鳴禽、亞鳴禽及非鳴禽叫聲在聲學特性上的差異，以及亞鳴禽在斷神經后叫聲的聲學變化，旨在為進一步解釋其發聲機制提供幫助。
  19. Furthermore, a new time and phase synchronization scheme using a globe positioning system of a satellite ( gps ) is presented

    該方案克服了傳統時間同步裝置需要較長時間來校正頻率誤差的缺陷，使校正後的精度大為提高。
  20. The method proposed in this thesis is developed under the financial support of an aeronautical project named " correction of the reduced fe model of a certain airplane ". due to the generality of the proposed method, it is also extendable and applied to other engineering problems such as the correction of frequency responses and thermal analyses

    由於該方法的通用性，它不僅能修正靜力、模態特性，還可以修正頻率響應，熱傳導分析等有限元模型，具有修正多變量、多物理場有限元模型的功能，因此，該方法具有極大的工程推廣價值。
分享友人
分享到 Line

分享到臉書