頻率條件 的英文怎麼說

中文拼音 [bīnlǜtiáojiàn]
頻率條件 英文
frequency condition
  • 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
  • 條 : Ⅰ名詞1 （細長的樹枝） twig 2 （條子） slip; strip 3 （分項目的） item; article 4 （層次; 秩序; 條...
  • 件 : Ⅰ量詞（用於個體事物） piece; article; item Ⅱ名詞1. （指可以一一計算的事物） 2. （文件） letter; correspondence; paper; document
  • 頻率 : frequency; rate
  • 條件 : 1. （客觀的因素） condition; term; factor 2. （提出的要求） requirement; prerequisite; qualification
  1. The waves should be sheared waves for the anisotropic aeo device and longitudinal waves for the isotropic aeo device. geometrical relationships of anisotropic acousto - optic effect in ln crystal and kdp crystals are studied by tangent - match condition. curves of incident angle vs. abaxial angle, diffractive angle vs. abaxial angle, extreme frequency vs. abaxial angle and acousto - optic merit vs. incident angle vs. abaxial angle are systematically gained and the design parameters are also calculated

    利用相切-匹配條件法研究了鈮酸鋰晶體及kdp晶體的反常聲光互作用幾何關系，系統地得到了以離軸角為自變量的各參數的計算公式及相應的關系曲線，通過數值分析方法給出了聲光優值隨中心頻率的變化曲線並給出了器件的設計參數。
  2. And then facing the problem of the channel estimation of the adaptive modulation system, we conclude out the channel estimation algorithms on maximum likelihood ( ml ) estimation and maximum a posteriori ( map ) estimation under the condition of flat fading channel and selective fading channel in detail. to meet flat fading channel, we simulate the relationship of the ratio between the error covariance in map estimation and ml estimation and pilot symbol message length. the conclusion can be drawn from these results

    接著，對自適應調制系統中的通道估計問題難點，詳細推導了平衰落通道條件下和選擇性衰落通道條件下最大似然（ ml ）估計和最大后驗概率（ map ）估計演算法，針對平衰落通道，我們模擬了map估計和ml估計的方差與導頻符號長度的關系，模擬結果表明，錯誤方差受多譜勒頻率的變化影響最大，並且對實際的自適應調制系統，導頻符號長度的取值超過20個符號長度時， map通道估計明顯優于ml通道估計。
  3. ( 2 ) gene flow frequency was reduced as distance from pollen donor increased and a dramatic reduction occurred at about 2 meters. the maximum distance where gene flow was not detected was 50 m for hybrid rice while it was 70 m for ms lines, with an exception that in one of the four ms lines it was detected a frequency of gene flow 2. 8 + 10 - 6 at 150 m for zhong 9a

    在開花期主流風向ne的風速為0 . 2 ? 2 . 2m / sec的條件下， 2個雜交稻品種的最大漂流距離為40m ； 4個不育系的基因漂流基本上到60m為止， 70m處基因漂流頻率均降為0 ，僅中9a在150m處發現了1株basta抗性苗，經pcr檢測驗證為陽性。
  4. Even under the condition that the filling pressure was up to 1. 5mpa, the onset temperature was only 237 ?. with the filling nitrogen of 0. 9 mpa, the maximal pressure ratio reaches 1. 21 and the operation frequency is 25 hz. the ratio of the harmonic wave of the engine was very little and the frequency jumping was not found in present experiments

    在充氣壓力為0 . 9mpa的條件下，該熱聲發動機最大壓比可達1 . 21 ，遠高於駐波型熱聲發動機，實驗結果和理論分析均表明系統的工作頻率為25hz左右，實驗裝置的諧波比例非常小，且也沒發現頻率跳變等現象。
  5. 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。
  6. E., the carrier frequency of a gaussian beam deviates from the resonant frequency of a fabry - perot etalon ), variations of the peak intensity, the position of the peak intensity and the dwdm systems, has received considerable attention. in this work, after taking into account the wavelength - depended reflectivity distribution profile of a fiber bragg grating, the oscillation wavelength # _ ( 1 ) of long external cavity fiber bragg grat

    與共振情況（即高斯光束的載波頻率與法布里一拍羅濾波器的諧振頻率一致）相比，非共振條件（即高斯光束的載波頻率與法布里一拍羅濾波器的諧振頻率存在偏差）一透射光束的峰值強度、峰值強度所對應的位置、以及光斑的大小隨入射角的變化都發生了顯著的改變。
  7. 3. when the number of the nodal circles and the design frequency are given, the stepped circular plate satisfying the requirement can be designed

    在給出設計頻率和節圓數目的條件下，可以根據節圓處振幅為零可以設計出任一個節圓的階梯板的尺寸參數。
  8. 2, under equally see the quantity, compress the calculate way s exportation code plain deal connect the good and bad that decide its function of the good and bad, or say, output the code the term of same alike rate the bottom, and the portrait quantity reflected the function of the compression calculate way. adopt with dv all because of the m - jpeg an inside compress the way, efficiency of their compression certainly want lower than mpeg2. certainly, this is an average circumstance, at the time that low code rate, the mpeg2 can compare the m - jpeg compression the ratio high and a lot of but keep the good diagram to resemble the quantity ; but at request the diagram to resemble the quantity the good time for example the sow the room program edit with empress period creation, their difference to is not very big. too is to say, just at the compression efficiency that not emphasize the portrait quantity that the circumstance, mpeg2 is high

    2在同樣的視頻質量下，壓縮演算法的輸出碼率直接決定其性能的優劣，或者說，輸出碼率相同的條件下，圖象質量的優劣反映了壓縮演算法的性能。由於m - jpeg和dv都是採用幀內壓縮方式，它們的壓縮效率當然要比mpeg2低。當然，這是一個平均情況，在低碼率的時候， mpeg2可以比m - jpeg的壓縮比高很多而保持較好的圖像質量而在要求圖像質量很好的時候比如演播室節目編輯和後期製作，它們的差別不是很大。
  9. Generic specification of rubidium frequency standards

    銣原子頻率標準通用技術條件
  10. A novel bi - directional dc / dc converter was introduced in the dissertation, which based on refer much converter data. the soft switching, phase - shifted pwm and bi - directional dc / dc converter hang together, depress circuit switch ullage and noise effectively, which provide condition to increase switch frequency, efficiency and reduce size and weight for the converter ; at the same, the converter have the virtue of structure compact, voltage and current stress small etc such as ordinary hard switch converter

    本文作者在查閱國內外大量雙向dc dc變換器資料的基礎上，採用一種新型雙向dc dc變換器的拓撲結構，把軟開關技術和移相控制pwm技術以及雙向dc dc變換器技術有機結合在一起，有效地降低了電路的開關損耗和開關噪聲，為變換器裝置提高開關頻率、效率以及降低尺寸及重量提供了良好的條件。
  11. The methods of measurement for monotone and dual tone intermodulation suppression are provided as receiver works at fh mode based on intercept probability and false alarm probability are up to par

    提出在滿足截獲概率和虛警概率條件下，接收機跳頻工作方式的單音和雙音互調抑制性能測試方法。
  12. Results show that, at any frequency, the mbsl field changes with the ultrasonic intensity, and the thresholds of ultrasonic pressures are increased with the ultrasonic frequency. the reason is that, the ultrasound with higher frequency needs higher pressure to make the bubbles provide enough energy to dissociate the water molecules

    超聲的驅動頻率的大小影響氣泡的膨脹比（氣泡在超聲作用下膨脹的最大半徑最小半徑） ，進而影響氣泡爆破時產生的溫度，導致不同頻率條件下氣泡地聲致發光閾值不同。
  13. In this modulator, coplanar strips ( cps ) are used as electrodes for they support balance mode propagation of microwave, and this is a desired merit for common optical modulator. due to the miniaturized dimensions, the metallization thickness is in the order of skin depth and the conductor losses are not negligible

    雖然由於金屬的趨膚效應，電場將集中在金屬表面，但在40g以上的頻率條件下，金屬的厚度和趨膚深度在一個量級，而且此時調制器帶寬受到限制的最大根源來源於金屬電極的微波損耗。
  14. It has been found that by simulating the effect of coupling attenuation on all - optical wavelength conversion, all - optical wavelength conversion by using both light conversion and idle light can be realized respectively by adjusting coupling attenuation under the condition of different pump light and signal light powers

    文章通過模擬耦合器衰減對全光波長變換的影響，發現在不同的泵浦光與信號光功率條件下，調節輻合器衰減可分別實現利用變換光的全光波長變換和利用閑頻光的全光波長變換。
  15. The analyses show that slip changes with an change in frequency for an induction motor with frequency speed control

    給出了在不同性質的負載和頻率條件下，電動機的轉差率和轉速的計算公式。
  16. Bohr frequency condition

    玻爾頻率條件
  17. On application of frequemcy circumstances in bohr theory

    玻爾理論頻率條件的應用討論
  18. In this paper, several different multitarget tracking algorithms are also compared, and the relationship between the maximum velocity and the concentration under the special image capture frequency is brought out. a novel tracking strategy of referring to the velocity and direction of the sperm head based on the neighbor matching technology is introduced in our algorithm

    論文還分析了不同的多目標跟蹤演算法，給出了在特定采樣頻率條件下能夠跟蹤的目標速度和樣本密度之間應該滿足的條件公式，提出了適于不同條件的多因素綜合的鄰域匹配跟蹤演算法。
  19. The oxidation of sulfite is an important process in flue gas desulfurization by ammonia method

    摘要使用氣體放電等離子體對較高濃度的亞硫酸鈉進行氧化，在不同電壓和頻率條件下進行了實驗。
  20. The contactless hall effect - based measuring principle gives the pressure switch extremely good repeatability and longevity, even with extremely high load change frequencies. the adjusting screws allow the switching points of the magswitch

    符合無觸點霍耳效應測量原理使得這種壓力開關即使在極高負載變化頻率條件下也具有卓越的可重復性和壽命。
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