輻射脈的 的英文怎麼說
中文拼音 [fúshèmàide]
輻射脈的
英文
diverginervius-
The different excitation sources are pulsed to give intermittent radiation.
各種激發源形成脈動,以產生間歇的輻射。The experimental results show : the flattop phenomenon on the diode voltage pulse was very apparent for using the carbon fiber cathode, that is to say, the pulse duration of the diode voltage was widened ; moreover, under the condition of the same power of microwave, the pulse duration of the out - put microwave was prolonged by about 30 % ; the peak power of the microwave was enhanced by 3db
通過在裝置上做的兩種陰極的對比實驗,結果顯示:碳纖維陰極的使用,改善了電子束質量,使輻射微波的脈寬增加了30 %以上,輻射主瓣方向上的功率密度提高了3db以上,頻譜分佈較純凈,實現了微波的高效輸出。Figuratively, one may imagine the radiation of such a spherical maser as resembling a little hedgehog.
可以很形象地把這種球狀脈塞源的輻射想象為一個小刺蝟球的樣子。Finally, due to the rapid rotation of the neutron star, or the evolution of the companion, the infall of matter stops, the x - ray emission declines, and the neutron star emerges as a radio - emitting millisecond pulsar
最後,由於中子星疾速的自轉,或是伴星自身的演化,物質的流入停止, x射線輻射減弱,這顆中子星就呈現出了毫秒脈沖星的面目。As the pulsar rotates, this beam sweeps the sky in the same way that a lighthouse beam sweeps around the horizon.
當脈沖量旋轉時,輻射束掃過天空,就像燈塔的光束繞地平面掃視那樣。As the pulsar rotates, this beam sweeps the sky in the same way that a light house beam sweeps around the horizon.
當脈沖星旋轉時,輻射來掃過天空,就像燈塔的光束繞地平面掃視那樣。In contrast, a pulsar emits a lot of its radiation in radio wave
脈沖星所發放的輻射則主要為無線電波。For liquid xe aerosol spray target, important lpp characteristics, such as laser - to - euv conversion efficiency, euv radiation absorption, debris production by target material erosion or deposition, are studied in detail, a 13. 4nm conversion efficiency of 0. 75 % into 2 % bandwidth and 2 steradian emission solid angle is achieved at 0. 5mm laser - nozzle distance
在實驗上,建成了一套高光譜解析度和高靈敏度的軟x射線脈沖輻射測量裝置。測量了co _ 2 、 o _ 2 、 cf _ 4 、 kr和xe液體微滴噴射靶lpp光源在6 20nm波段的軟x射線輻射光譜。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。Meanwhile, under the condition of continuous wave radiant, how to get the time difference precisely in the low signal noise ratio become another problem. the paper firstly introduce basic principle of the tdoa location technology while the merits and demerits is also given
同時,電子戰中不僅有大量脈沖輻射源,而且還有連續波輻射源的現狀使得怎樣在信噪比較低的條件下準確無誤得到輻射源的時差也是該領域一個難點。Research on the radiation pulse width of the aperture antenna
口徑天線輻射脈沖持續時間的研究2. using the simulation method and a lorentzian oscillator model, the influence of the deviation in experimental parameters, including the thickness of samples, the incident angle, the misalignment of the time delay line, the background noise and the laser noise is analyzed
二、首次利用模擬thz輻射脈沖入射到共振吸收的樣品上的方法分析了厚度、角度、平移臺錯位、背景噪聲及激光器噪聲等對于光學常數測量產生的影響。Pulses of radiation are emitted when free electrons in the gas are accelerated by passing ions.
當氣體中的自由電子被掠過的離子加速時,將發出輻射脈沖。The method for measurement of photon fluences has been proposed based on the characteristics of the two radiation fields in this paper. there are two steps in this kind of measurement. first the absorbed dose in a small material block is measured
針對這兩種脈沖輻射場的特點,本文根據空腔電離理論,建立了其光子注量測量方法:首先測得小塊介質的吸收劑量,再根據譜的數據資料計算出光子注量。The amplifier request band width, to adapt radiation pulse randomness and its extremely quick front
放大器要求頻帶寬,以適應輻射脈沖的隨機性和其極快的前沿。It proves that the accuracy of the obtained photon fluence by this kind of method is acceptable. overall, pulse photon fluences in the pulse accelerator and the radiation field caused by pulse reactor have been obtained by strict experimental studies and theoretical calculation in this paper. it provides the technological support to calibration of detectors for physical diagnosis in nuclear exploding
簡而言之,通過嚴格的實驗研究和理論計算,本文測得了12mv脈沖加速器的x射線譜和liftld對較寬能區的中子的let效應因子值,並通過研製的均勻固體電離室測得了脈沖加速器和脈沖堆輻射場的光子注量,解決了幾個相關的技術難題,為核爆診斷探測器的標定提供了技術支撐。The rapid development of ultra - fast laser technology offers a stabile and reliable laser source for production of terahertz radiation pulses, which promotes the broad application of terahertz technology to fields in basic research, industry and military affairs
近年來超快激光技術的迅速發展,為太赫茲輻射脈沖的產生提供了穩定可靠的激發光源,推動了太赫茲技術在基礎研究、工業及軍事領域的應用。A coherent electromagnetic pulse in the range between the far - infrared and microwave region is used as a detection source. the amplitude of the wave is recorded by electro - optical or photoconductive sampling. after fast fourier transform, the amplitude and phase of the wave is given, then the complex refractive index standing for the absorption and dispersion of the material in thz region is extracted
Thz ( 10 ~ ( 12 ) hz )時域光譜技術是20世紀90年代發展起來的一種新型的光譜測量技術,它使用頻率介於遠紅外和微波之間的相干電磁輻射脈沖作為探測源,利用電光取樣或光電導取樣的方法直接記錄thz輻射電場的振幅時間波形,通過傅立葉變換得到測量信號振幅和相位的光譜分佈,進而獲得材料在thz波段的復介電常數,即色散及吸收等信息。They found two events showing the shortening of pulsating cycle and decaying of radiations intensity. the signatures matched theories of what scientists would predict to see. when matter is falling so close to the event horizon, it will be circling the black hole with increasing speed and its light will rapidly dim as it is stretched by gravity to ever - longer wavelengths
研究人員分析了極大量來自緻密天體天鵝座xr - 1的紫外線輻射,發現其中兩組數據顯示,輻射脈沖的周期隨時間縮短,而其強度則隨時間衰減至消失,這現象與一些物質在接近黑洞視界時繞著黑洞急促旋轉,放出的輻射因為重力紅移而衰減的情況相符。The radar radiation is high density, all frequency and it ' s frequency is changeable, we can get the toa, pw and pa by measuring the parameters of radar pulse. by these parameters, we can know where the radiation be, then we can launch arm to perish enemy or protect own
通過對雷達視頻脈沖信號參數的測量,可以獲得脈沖幅度( pa ) 、脈沖到達時間( toa )和脈沖寬度( pw )等時域參數,獲取敵方輻射源的型號、威脅等級等信息,從而對目標進行識別和定位,以達到消滅敵人,保存自己的目的。分享友人