pulse group 中文意思是什麼
pulse group
解釋
脈沖群-
There has been a revolutionary advance in ultrashort pulse technology since the discovery of self - mode locking of ti : sapphire lasers. few - femtosecond pulses have already been generated from ti : sapphire lasers, by means of combining self - phase modulation with negative group velocity dispersion, which is similar to the way of soliton generation
鈦寶石激光自鎖模的發現使得超短脈沖技術發生了革命性的變化，利用自相位調制和負群速度色散結合的類孤子產生方式，人們已經在鈦寶石鎖模激光器上得到了脈寬只有幾個飛秒的光脈沖。 -
A multi - group electrodes and multi - pulse high power gas switch
一種多組電極的高功率多脈沖氣體開關 -
Based on mono - pulse radar system and the analysis of terrain echoes, a geometrical model of air to ground ranging is constituted. by using the signals received from the sum and difference channels of terrain follow radar, a group of the expressions for terrain echoes are educed and characteristics of these echoes are obtained. according to the characteristics of the echoes, the theory and method of pass zero detection of difference channel and its applications are discussed in detail
針對一維單脈沖雷達體制，分析了地形目標回波特性；建立了地形跟隨雷達空地測距的幾何關系；利用雷達收發信號，導出了地形跟隨雷達和差接收通道的回波信號表達式，進行了波形模擬，得到了地形跟隨雷達的地面散射產生回波在時域中的特性；根據和差回波特性，闡述了差信號過零點檢測測距的原理和方法及工程實踐中的應用，並給出了真實雷達對外輻射試驗的結果，驗證了文中的模擬。 -
Power and i o terminal all through 2kv 5khz grouped pulse anti - reference test, iec ns6100 - 4a electric quick transient pulse group, surge, 2kv 5khz in the quality, anti - reference, and safety standard aspects in accordance with international standard
電源及i o端子均通過2kv 5khz的群脈沖抗干擾實驗iec ns61000 - 4a電快速瞬變脈沖群浪涌， 2kv 5khz在質量抗干擾能力及安全標準方面符合國際標準。 -
Power and i o terminal both pass anti - interference test of 2kv 5khz group pulse. iec ns61000 - 4a electric quick transient pulse group, surg, 2kv 5khz in the quality, anti - interference ability and safety standard aspects it is correspond to international standard
電源及i o端子均通過2kv 5khz的群脈沖抗干擾實驗iec ns61000 - 4a電快速瞬變脈沖群浪涌， 2kv 5khz在質量抗干擾能力及安全標準方面符合國際標準。 -
We have calculated and plotted the curves of the refractive index, group velocity index, lowest - order and second - order dispersion indexes as a function of wavelength. the lowest - order and higher - order dispersion - induced broadening and deforming of light pulses is analyzed for various pulse shapes, such as gaussian, super - gaussian and hyperbolic secant pulses
給出了折射率、群速指數、低階和二階色散系數隨波長變化的關系曲線，研究了高斯脈沖、超高斯脈沖和雙曲正割脈沖等超短脈沖在clbo晶體中傳播時，由於低階色散和高階色散引起的脈沖展寬和形變。 -
B group : when only bicuculline was microinjected into pgl, map was significantly higher ; pulse pressure, hr, respiratory pressure and frequency of respiration did not change significantly. when bic was applied into pgl with ear acupuncture in pc simultaneously, compare with the former, map was not so much high ; the time of map came back to normal level, pulse pressure, hr, respiratory pressure and frequency of respiration did not change significantly
B組： pgl單獨微量注射荷包牡丹堿（ bic ） ， map升高，而脈壓、心率、呼吸壓、呼吸頻率無明顯改變； pgl注射bic並同時電針胸肺區，與單獨注射bic相比， map升高幅度得到明顯調整；對map恢復正常的時間、脈壓、心率、呼吸壓及呼吸頻率無明顯影響。 -
Calculations indicate that the carrier phase takes effect till the time width of the pulse envelope becomes smaller than the period of the carrier oscillation, and the interpretation of this phenomenon is also presented. it is the difference between phase delay and group delay that causes the sliding between the carrier and the envelope
數值分析的結果表明，當脈寬小於光波周期時，相位的作用開始顯現出來，當脈寬比光波周期長時，載波相位的作用可以忽略，並分析了相位起作用的原因，用解析的方法說明正是相延遲和群延遲之間的差別造成了光載波在脈沖包絡下的滑動。 -
The study in this paper based on the national fifteen tackling key problem - " life detection and orientation of earthquake emergency response system " and project of no. 10 research institute of china electronics technology group corporation - " pulse radar target detection and location technology ", has completed the study and simulation of the relative technology of tdoa, which was a theoretical and technological supporting to the two projects
本論文在國家十五重點科技攻關課題「地震救助生命搜索與定位技術研究」和中國電子科技集團第十研究所「脈沖輻射源監測和定位技術」國際合作項目中，完成了對其中時差定位相關技術的研究和模擬，為工程項目的實施提供理論和技術支持。 -
The phase matching and group velocity matching conditions of type - i and type - ii second harmonic generation ( shg ) are obtained according to the momentum and energy conservation laws. the group velocity delay of ultrashort pulse shg on clbo and the crystal length decided by the group velocity delay are analyzed and compared with bbo ' s
從動量守恆、能量守恆出發推導得出了超短脈沖倍頻的類、類相位匹配和群速匹配條件，對clbo晶體用於超短脈沖倍頻時的群速延遲以及由群速延遲決定的晶體長度進行了分析和數值模擬，並與bbo晶體進行了比較。 -
In the picosecond and femtosecond time field, the durations of the pump and signal pulses are so short that special propagating characteristics of ultrashort pulse laser should be taken into account, especially the pulse broadening induced by the group velocity mismatch and the group velocity dispersion
在皮秒和飛秒時域，由於泵浦光與產生的信號光的持續時間特別短，故在討論超短脈沖與物質相互作用時必須計及超短脈沖在介質中傳輸的特殊性質，尤其是群速失配與群速色散引起的脈沖展寬。 -
We derive an analytic expression of the group velocity dispersion ( gvd ) induced chirp and the self - phase modulation ( spm ) induced chirp in the normal dispersionregion of non - kerr - like optical fibers with saturable nonlinarity. the evolution of chirp is simulated by numerical methods. the studied results show that the more powerful saturable effects, the smaller is chirp and the gently is chirp. the net chirp is zero in the central region of the pulse
從理論上推導出具有飽和非線性的非克爾光纖正常色散區內，群速度色散效應導致的啁啾和自相位調制效應導致的啁啾解析表達式.利用數值解法模擬了非克爾光纖正常色散區啁啾演變過程.研究結果表明：當非克爾光纖的飽和非線性增強時，凈啁啾不斷減小，而且，越來越平緩，脈沖中心附近區域凈啁啾接近零 -
In this paper, first, the study of the distribution of electromagnetic field, energy, power, reflection coefficient and transmission coefficient in waveguide with piecewise different dielectric constants are studied. then, the behavior of propagation of am signal and gauss pulse signal through the waveguide are simulated by magic code ， and the plots of electromagnetic field, energy, ponyting vector and their spectrums at different time and different position are obtained. and, the group velocity and energy velocity of wave packet through barrier are calculated
從90年代開始， emig和martin 、 landauer等人研究了分段填充不同介質的波導中的電磁脈沖的傳播。在本論文中，作者首先推導出分段填充不同介質的波導中的電磁場分佈、能量、傳輸功率以及反射系數和傳輸系數的表達式，然後，採用magic程序模擬了這種波導結構中電磁波的傳播情況，得到了在不同時刻和不同位置處的電磁場分布圖、能量圖、坡印廷矢量圖以及它們的頻譜圖，並由模擬結果計算了波包穿越勢壘的群速和能量速度。 -
2. b " group : when only bicuculline was microinjected into pgl, map was significantly higher ; pulse pressure, hr, respiratory pressure and frequency of respiration did not change significantly. when bic was applied into pgl with ear acupuncture in npc simultaneously, compare with the former, map was not so much high ; the time of map came back to normal level, pulse pressure, hr, respiratory pressure and frequency of respiration did not change significantly
B 』組： pgl單獨微量注射bic ， map升高，而脈壓、心率、呼吸壓、呼吸頻率無明顯改變； pgl注射bic並同時電針非胸肺區，與單獨注射bic相比， map升高幅度得到明顯調整；對map恢復正常的時間、脈壓、心率、呼吸壓及呼吸頻率無明顯影響。 -
Under certain conditions, in spite of their different modal indices the two polarized components of the pulse can trap one anther and move at a common group velocity due to xpm, the phenomenon referred as self - trapping occur
在一定條件下，盡管脈沖的兩個偏振分量的模式折射率不同，但由於交叉相位調制效應，它們能相互俘獲並以共同的群速度傳輸，產生自捕獲現象。 -
After analyzed the limitation of dijkstra algorithm and genie algorithm, a pulse coupled neural networks ( pcnn ) algorithm is proposed. pcnn provides group similarity, synchronous exciting and auto - wave generation characters, and is widely researched and applied in image processing, target identification and optimization fields
脈沖耦合神經網路提供了分組類似性、同步激發和自動波的形成與傳播等一系列基本的特性，並在圖像處理、目標的自動辨識和組合優化等領域中得到了廣泛的應用和研究。 -
When the pulse width of input gaussian wave packet was reduced and the length of forbidden region retained, the result displayed the output signal distorted seriously and its spectrum changed very hard. a frequency above the cut - off frequency became the main frequency and the group velocity was below than c
在保持截止區長度不變，而減小輸入高斯波包的脈沖寬度時，模擬顯示輸出波形嚴重失真，而且，頻譜也發生很大的變化，主頻已變為一高於截止頻率的頻率，群速度小於光速c 。 -
The followings were discovered in the simulations of undersized waveguide : when the pulse width of input signal, a gaussian packet, is rather wide, the output signal distorted little. a superluminal group velocity 3. 21c was revealed when the wave packet crossing 50mm forbidden region
對凹陷波導（ undersizedwaveguide ）的模擬發現：輸入脈沖寬度較大的高斯波包，模擬結果顯示輸出波形失真較小，經過計算得到電磁波包穿過長50mm的截止區時，電場的幅度衰減了- 41 . 5db ，群速度為3 . 21c 。 -
On top of this, we will also strive to take the public pulse by collecting views in the coming months through other means such as public forums, group discussions and meetings with various district councils
此外，在未來數月，我們會以不同方式聽取意見，包括舉行公眾論壇、小組討論、及與各區區議會見面等，以幫助掌握市民大眾的意見。 -
Once participants are immersed, adventure becomes a powerful vehicle for taking a group ' s pulse, breaking through stale assumptions, identifying barriers to communication, cooperation and effectiveness, and opening minds to new ideas, roles and possibilities
一旦參與者都專心投入活動之中，歷險活動便成為了解團隊，打破陳腐觀念的有效工具，能夠明確指出溝通合作的障礙，效率低落的原因，還能敞開心胸接受新觀念、新角色和新的可能性。
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