射電散射 的英文怎麼說
中文拼音 [shèdiànsǎnshè]
射電散射
英文
radio scattering- 射 : Ⅰ動詞1 (用推力或彈力送出) shoot; fire 2 (液體受到壓力迅速擠出) discharge in a jet 3 (放出) ...
- 電 : Ⅰ名詞1 (有電荷存在和電荷變化的現象) electricity 2 (電報) telegram; cable Ⅱ動詞1 (觸電) give...
- 散 : 散動詞1. (由聚集而分離) break up; disperse 2. (散布) distribute; disseminate; give out 3. (排除) dispel; let out
- 散射 : [物理學] [電學] scattering; radio scattering; scatter; dispersion
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The ionosphere is a complex medium, which is aeolotropy, asymmetry, dispersive and changes randomly with time. in order to improve the communication quality of the shortwave that depends on the ionosphere, we should have aknowledge of the current condition of the ionosphere in real time. the backscatter sounding of high frequency can diagnose the real - time channel characters for shortwave communication or hf radar, which is great assistant to shortwave communication and hf radar
電離層是隨機時變,各向異性,非均勻、色散的復雜介質。為了保證依賴于電離層進行的短波通信質量,必須了解電離層的實時狀態信息。高頻返回散射探測可以實時監測與短波通信或高頻天波雷達相關的天波傳播通道的狀態,對短波通信和天波雷達工作起了重要的輔助作用。The size of the particles disperses uniform as well as narrow ( obtained by reverse micelle method in the system of aot / iso - octane / water and trion x - 100 / caprylic alcohol / cyclohexane / water )
通過透射電子顯微鏡觀測到兩種體系合成出的粒子粒徑在5nm左右,且粒子呈單分散,粒徑分佈均勻。The secondary backscattered electron current is used to modulate the intensity of an electron beam in a cathode ray tube(crt).
二次電子或背散射電子的電流被用來調制陰極射線管(CRT)中電子束的強度。Study for backward scattering photoelectrical and smoke detector based on collimated beam
基於平行光束的後向散射光電感煙探測器的研究Compton scattering can't be understood on the basis of classical electromagnetic theory.
康普頓散射不能根據經典電磁理論去理解。Much of visible light reaching us from the solar corona also seems to be due to scattering by electrons.
從日冕中射來的相當大一部分可見光看來也是由電子散射產生的。Much data can be obtained by measuring the dispersion of cosmic radio waves passing near the sun.
測定穿過太陽附近的宇宙射電波的色散度也可以獲得許多資料。The most obvious advantage is that because of their inability to scatter appreciably, nebular radio waves completely and genuinely delineate the distribution of nebular gas.
因為星雲對射電波的散射很小,所以最明顯的優點就是能夠全面而真實地勾畫出星雲氣體分佈的外貌。Flash forth lightning, and scatter them ; send forth your arrows, and discomfit them
6求你發出閃電,使仇敵四散;射出你的箭,使他們潰亂。Research interest : surface science ; kikuchi electron holography ; electron multiple - scattering techinques ; molecular dynamical simulations ; ab initio total energy calculations ; self - diffusion on metal surfaces ; dissociative adsorption of h2 on metal surfaces
研究興趣:表面科學,電子全像術,電子多重散射分析理論技術,分子動力學模擬,第一原則總能量計算,表面原子動態學,氫分子的解離吸附。But their resulting inductive reactance is completely swamped by the resistance resulting from their being scattered in the metal.
但由此所產生的感抗完全被其在金屬中受到散射而產生的電阻掩蓋了。Ionosphere scatter propagation
電離層散射傳播( 4 ) we use sem to observe fractured morphology of composites, and tem to observe dispersion and particle size of nanoparticles or composited nanoparticles in matrix. we also investigate dispersion property of composited nanoparticles in polymer matrix with the help of microtone
( 4 )採用掃描電鏡( sem )觀察缺口沖擊的斷裂形貌,通過透射電鏡( tem )觀察納米粒子和復合納米粒子的分散情況和粒徑的大小;通過超薄切片法研究復合粒子在聚合物基體中的分散性。The fast multipole algorithm for analysis of electromagnetic scattering problems
用於分析電磁散射問題的快速多極演算法Radar cross section ; dielectric - coated conductor ; fast multipole algorithm ; impedance boundary condition
電磁散射塗層導體快速多極演算法阻抗邊界條件The master dissertation introduces passive correlative orientation system and base theory in signal dispose briefly in the first place. the system takes tv sound fm signal from tv satation signal. the power rate of tv station signal to sound signal is ten to one. in the case of submerged by mussy weave and machine ' s hot noise, dispersed target signal is feeble
系統採用電臺的電視伴音調頻信號,其中電臺信號與伴音信號功率之比基本為10 : 1 ,並且目標散射信號較弱,一般情況下淹沒在雜波和機器熱噪聲之下,採用常規的脈沖檢測方法很難對遠距離的目標進行檢測,而以電臺直達信號作為參考與目標回波信號進行相關檢測;系統中信號的相關處理會產生旁瓣,而強目標的旁瓣會影響附近的弱目標檢測。Second, the imaging model built here has taken into account the tilt modulation, the hydrodynamic modulation, and current modulations of radar cross section. consequently, it has realized the imaging simulation of four kinds of wakes with the same imaging model. third, the orbital velocity of ocean wave was considered as the basic dynamic factor, and the imaging model calculates the influence on raw data by the wave m ovement according to the orbital velocity
該模型的主要特點是: ( 1 )它採用了三尺度復合表面模型的思想來計算海面的電磁散射,考慮了中等尺度波對紋波的進一步調製作用,彌補了傳統雙尺度模型的不足; ( 1 )它考慮了海浪的傾斜調製作用、流體動力調製作用和流場對雷達截面的調製作用,實現了用統一的模擬模型對四種艦船尾跡特徵進行成像模擬; ( 3 )它把海面長波的軌道速度作為基本的動態成分,並依此來考慮海面運動對sar回波信號的影響。The tem analysis of pa6 composites shows that optimal incorporation of nano - al2o3 into pa6 is at 10 phr of nano - al2o3, and that fillers can equably disperse in matrix
另一方面,透射電鏡分析表明,添加量為10phr的試樣中納米a12o3粒子可以在尼龍6基體中均勻的分散。Polarimetric synthetic aperture radar ( polsar ) investigates the transverse vectorial nature of plane em waves and provides the complex scattering matrix of a scatterer. scattering polarimetry is sensitive to the shape, orientation, and dielectric properties of scatters
極化合成孔徑雷達( polsar )研究電磁波的矢量特徵,通過測量和分析目標的極化散射特性,獲取目標的介電常數、物理特性、幾何形狀和取向等方面的大量信息。Electroacoustics - random incidence and diffuse field calibration of sound level meters
電聲學.聲級測量儀的隨機入射和散射區域的校正分享友人