脈沖數秒 的英文怎麼說

中文拼音 [màichōngshǔmiǎo]
脈沖數秒 英文
pps
  • 脈 : 脈名詞1. （動脈和靜脈的統稱） arteries and veins2. （脈搏的簡稱） pulse 3. （像血管的組織; 連貫成系統的東西） vein
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 秒 : 量詞2 （時間計量單位） second （=1/60 of a minute）: 60 秒為1分。 sixty seconds make a minute 這...
  1. The maximum 50500 photo counts per second with 76mhz pump pulse frequency is detected. the probability to be single - photon state of every count is better than 99 % 5

    在抽運光脈沖重復頻率為76mhz的情況下，得到了每秒50500次的下轉換光子記數，其中單光子概率大幹99 。
  2. The use of time delays on these vehicles helps to eliminate transmission and motor damage by providing even and controlled acceleration. the delay is adjustable between 0 to 5 seconds and can be wired independently of other delays or alternatively these delays can be wired in cascade so that it is necessary for the first delay to switch on before the following commences timing etc. suppression is included in the delay circuit to prevent damage by voltage transients

    延遲開關可以調整延遲時間0 ~ 5秒，並可連接數個延遲開關來逐步控制連續動作之時間（復數連接時，第一個開關要啟動接下來的開關才會跟著動作）避免電動車起動初期之電力脈沖，達到平順的起步動作，可預防電壓無端變動造成之電路故障
  3. It has many advantages, for example high transmission rate, low power consumption, good security, robustness to multipath and low cost

    利用納秒級的非正弦波窄脈沖來傳輸數據，具有傳輸速率高、功耗低、安全性好、抗多徑能力強以及成本低廉等許多優點。
  4. It is a novel short - distance wireless communication technique, in which data are transferred using non - sinusoidal pulses with very short duration, so it is fit for using in indoor environments which is a typical multipath environment. and it can be coexisted with the existing wireless communication systems at the same frequency band

    超寬帶通信系統利用納秒至皮秒級的非正弦波窄脈沖傳輸數據，非常適合作為城區及室內密集多徑環境下的應用，並且能夠與現有的傳統窄帶系統共存。
  5. In view of the altitude problems of inspecting the weighted average ways of obtaining altitude and the advantages and disadvantages of moving surface interpolation method are talked about through comparison, with which the writer draws a conclusion that moving surface interpolation method is suitable to be applied for the dynamic state inspection places, moreover the key technology about the dynamic slate inspection is also taken into consideration, which includes digital camera and types of camera lens, the cause of camera lens distortion and the fundamental determining principle, the gain of image coordinate and the realization of time synchronization

    針對檢定點高程問題，分析比較了獲取高程的加權平均法和移動曲而內插法的優缺點，得出移動曲面內插法適合用於動態檢定場的結論。特別是針對動態檢定的關鍵技術給予了相關研究，內容涉及：數碼相機及相機鏡頭的選型，相機畸變差產生原因及測定的基本原理，像片坐標獲取以及時間同步實現，得出結論：利用gpsoem板的秒脈沖（ 1pps ）輸出特性，能夠實現兩臺數碼相機與gps接收機時間同步，滿足動態檢定指標要求。
  6. Secondly, the third order nonlinear optical properties of these compounds are studied under the excitation of ps pulsed laser with the wavelength of 1064nm using z - scan technique, nonlinear refractive indices and nonlinear absorption coefficients are calculated according to the z - scan experiment curves of the compounds. all the three compounds have self defocusing characters and two photon absorptions. lastly, nonlinear refraction and absorption properties of these compounds are studied by z - scan technique under the excitation of ps pulsed laser with the wavelength of 532nm the self defocusing and reverse saturation absorption are found in these compounds

    根據實驗曲線計算了它們在1064nm下的三階非線性折射率和非線性吸收系數，三種化合物都具有自聚焦特性，並且在該波長下，三種化合物均具有雙光子吸收，最後，以皮秒脈沖的532nm為激發波長，採用z掃描方法，研究了三種金屬有機化合物的非線性折射和非線性吸收性質，在該波長下三種化合物仍然表現為自聚焦特性，且其吸收為反飽和吸收。
  7. From the analytical point of view, with the aid of the numerical simulation, we investigate the propagation properties of optical pulses for the nonlinear schrodinger equation in picosecond regime, the higher - order nonlinear schrodinger equation in femtosecond regime, the nonlinear schrodinger equation with varying gain / loss and frequency chirping in homogeneous optical fibers, and ginzberg - landau equation that describes ultrashort pulses in the presence of self - frequency shift, respectively

    本文從解析的角度出發，同時藉助各種微擾理論和數值分析方法，分別研究描述皮秒光脈沖傳輸的非線性薛定諤方程、飛秒光脈沖傳輸的高階非線性薛定諤方程、非均勻光纖中光脈沖傳輸的含有頻率啁啾和增益損耗項的非線性薛定諤方程以及描述超短光脈沖傳輸的ginzberg - landau方程的解的特性，為進一步實現超高速、大容量的光信息傳輸提供一定的理論依據。
  8. Three shaped profiles ( parabola, linear, and exponential ) have been considered. the exponential dispersion profile fiber loop is optimal for the propagation and compression of picosecond pulse. on the contrary, the parabola dispersion profile fiber loop is optimal for femtosecond pulse due to the high order effects such as the third order dispersion ( tod ), stimulated raman scattering ( srs ) and self steeping ( ss )

    （ 3 ）研究不同色散遞減類型（拋物線遞減、線性遞減、指數遞減）光纖構成的環形腔中傳輸的特性，發現其色散曲線為指數遞減型光纖有利於皮秒光脈沖的傳輸與壓縮；而對于飛秒脈沖，由於三階色散（ tod ） 、脈沖拉曼自散射（ srs ）及自變陡（ ss ）等高階非線性效應的影響，情況恰恰相反；色散曲線為拋物線遞減型的光纖構成的光纖環最有利於脈沖傳輸與壓縮。
  9. Most flashlamp applications use a trigger coil to produce high - voltage pulses of short duration, usually a few microseconds or less

    大多數閃光燈使用一個觸發線圈產生瞬間高壓脈沖!其持續時間只有幾微秒或更短
  10. The main part and key technique of the cpa system is study : the generation of the femtosecond laser pulse is study, the modulation and maintenance of the ti : s laser is learned ; the types of the measurement for ultrashort laser pulse is generalized and the interferometric autocorrelation is expatiated ; the varieties of the stretchers is sum up and aberration - free stretcher is calculated and optimized to improve the stretching ratio ; the pulse selection is analyzed and a single pulse can be selected successful from the pulse train at a repetition rate of 82mhz ; the kinds of the amplifier in cpa system is gathered up, the eight - pass pre - amplifier and a good many effects in it is investigated. finally, the second, third and fourth - order dispersions in cpa system is analyzed systemicly, and the according means for dispersion compensation is worked out

    對cpa系統的主要環節及關鍵技術進行了研究：掌握了鈦寶石激光器的調節和維護技術，較深入地研究了飛秒激光脈沖產生的機理，其中對群速色散、自相位調制、自鎖模等問題進行了詳盡的分析；總結了超短激光脈沖的測量技術，重點研究了干涉自相關測量法；在總結展寬器類型的基礎上，對無象差展寬器進行了理論計算、優化設計，提高了展寬倍數；深入論述了脈沖列的選單問題，熟練掌握了脈沖選單技術。
  11. From three - wave coupling equations, the optimal crystal length, conversion efficiency and parametric light pulse width are computed numerically when clbo is used in picosecond optical parametric amplification. the results present that clbo are suited for optical parametric amplification in short wave band. in order to get higher conversion efficiency, the crystal length should be optimized according to the intensities of pump and signal waves

    從三波耦合方程出發，對clbo用於皮秒級光參量放大時，最佳晶體長度、轉換效率和參量光的脈沖寬度進行了理論分析和數值模擬，結果表明clbo晶體適合在短波范圍作光參量放大，為達到高的轉換效率和窄脈寬的信號光輸出，泵浦光和初始入射信號光的強度應根據晶體長度取最優化值。
  12. Most astronomers accept the binary spin - up scenario for creating millisecond pulsars because they have observed neutron stars speeding up in x - ray binary systems, and almost all radio millisecond pulsars are observed to be in binary systems

    多數天文家接受這個假想的模式，因為他們已經在x射線雙星系統中觀測到了中子星的加速現象，而且幾乎所有的毫秒脈沖星都被發現時處于雙星系統中。
  13. The effect of various gain coefficient on soliton - effect picosecond pulse compression in fibers with slowly decreasing dispersion

    色散緩變光纖中增益系數的取值對皮秒脈沖孤子效應壓縮的影響
  14. Pulse per second pps

    每秒脈沖數
  15. Optimization of parameters on reconstruction of phase of femtosecond laser pulse with spider

    用spider法重構飛秒脈沖位相中參數的選擇
  16. Immunolabeling for phosphorylated cofilin ( pcofilin ) and ppak was robust in a small number of synapses, and was transient, beginning about 30 - 120 s post - tbs

    磷酸纖維素和磷酸化的pak激酶的免疫標記在小數量的突觸上表現的很粗壯而且短暫，在脈沖電刺激后30 - 120秒曾現出來。
  17. This paper gives a time - synchronization technique bases on gps time service signal which is used in broad band seismic recorder 。 by world coordination time offered by gps - - utc ( usno ), adjust local clock base on gps signal, gain high nicety clock signal, clock precision reachs 10 - 6 。 this clock is the time source of broad band seismic recorder, bring the whole seismic recorder works in same time base. 1pps time base with high stability can be used as in - phase, spring, time and start - stop of every collection mode, while the scale under second make a precise time mark to receive data of broad band seismic recorder

    針對接收機中gps信號的噪聲進行kalman濾波軟體處理， kalman濾波可以對gps信號與本地晶振時鐘的時差數據在大噪聲中進行平滑，在較短時間內估計出高精度的時差數據。系統消除了gps秒脈沖信號的ms級隨機誤差，把晶振秒脈沖的長期穩定度鎖定到gps信號的穩定度上;在gps信號失效時給出了可行措施，能夠保證在任何情況下產生一個穩定、高精度秒脈沖信號，誤差在1 s內。
  18. Based on the theory mode, the delay time between the beginning of optical illumination and the onset of lock - on switching was calculated, and the transiting speed of electrons, the traversing velocity of the current filament, was obtained as well. the calculated results matched well the experimental results. taking advantage of the ultra - fast response characteristics of the devices, si - gaas pcss ' s are successfully applied to the broadening test of nanosecond laser pulses

    應用單極電荷疇模型數值計算了lock - on效應的光、電時間延遲和載流子的渡西安理工大學碩士學位論文越速度（絲狀電流穿越開關間隙的速度） ，所得計算結果與實驗測試結果基本吻a利川半絕緣gaas光屯導開關的超快光l匕11向應燈性，成功地應川下納秒激光脈沖展寬試驗中，證明了開關可廠泛應川在超快光電響應和光電反饋網路中。
  19. A theoretical investigation by split - step fourier method is presented on the propagation of a femtosecond gauss pulse in photonic crystal fibers

    摘要運用分步傅里葉方法數值模擬了飛秒高斯脈沖在光子晶體光纖中的傳輸，計算分析了初始啁啾對脈沖壓縮效應的影響。
  20. ; ansi t1. 302a - 92 telecommunications - digital processing of voice - band signals - line format for 32 - kbit s adaptive differential pulse - code modulation channel - control templates and robbed - bit signaling alarm transmission ; supplement t. 302a - 1992

    電信.音頻信號的數字處理. 32k位秒自適應差動脈沖代碼調制的行格式
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