輻射增寬 的英文怎麼說

中文拼音 [fúshèzēngkuān]
輻射增寬 英文
radiation broadening
  • 輻 : 名詞（車輪中車轂和輪圈的連接物） spoke
  • 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） ...
  • 輻射 : radiation; exposure; radio; beaming
  1. 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。
  2. Air velocity inside solar chimney decreases with the increase of chimney gap and increases with the increase of solar radiation

    氣流速度隨著通道寬度的增加而減小，隨著太陽輻射強度的增加而增大。
  3. The results indicate that compared with the antenna without reflecting structure, the proposed antenna achieves broader impedance bandwidth, increases the forward radiation gain and has stronger backward radiation suppression

    結果表明，與沒有地平面反射結構的天線相比，該印製偶極子天線增加了抗帶寬，提高了前向輻射增益，抑制了後向輻射。
  4. In this thesis, wide - fov ( field - of - view ) optical systems with optical gain based on fov and optical gain of laser detection and warning optical system are studied. it can solve the problem of wide fov matching with small photosensitive surface, enhance the power received, increase detecting sensitivity, reduce the power of laser and decrease the cost of laser accordingly

    本文正是針對上述問題，從激光輻射探測光學系統的視場和光學增益出發，研究寬視場有增益光學系統，解決大視場和小光敏面匹配的矛盾，增強接收到的光功率，提高探測靈敏度，降低對激光輻射源功率的要求，從而降低相應激光器的成本。
  5. Millimeter wave system has many distinct advantages such as miniaturizing system components, increasing frequency band width, providing higher detectability, uneasily influenced by atmosphere conditions, etc. this makes millimeter wave technique get the increasingly extensive application in radar, communications, electronic warfare, guidance, remote sensing, radiation survey, therefore the research of millimeter system is very vital for civil, the industry, national defense

    毫米波系統具有可以使元部件小型化、增加系統帶寬、提供高解析度以及受大氣條件的影響較小等許多明顯的優點，這使得毫米波技術在雷達、通信、對抗、制導、遙感和輻射測量等技術領域中得到日益廣泛的應用，所以毫米波系統的研究對於民用、工業、國防具有重要的意義。
  6. To search for high - velocity molecular emission toward massive star formation regions, and to study the connections between h2o masers, iras objects and outflow properties, we carried out a co observation for a h2o maser sample. we found that most of the objects have excess high velocity emission produced by outflows ; we find a significant correlation between co line full widths and iras luminosities. the widths are proportional to the iras luminosities

    通過在大質量恆星形成區搜尋高速分子輻射，並且研究它們與星際h _ 2o脈澤源和所聯系的紅外源之間的關系，我們發現絕大多數源都存在著氣體的高速運動並且它們是由分子外流產生的；我們同時發現在co分子的譜線全寬和所對應源的紅外光度之間存在很好的相關性，線寬隨紅外光度增加而變大。
  7. A patch antenna with air holes in the substrate has been designed. the finite - difference time - domain ( fdtd ) method together with the perfectly matched layer ( pml ) boundary treatment has been used to study the performance of the antenna. it is shown that the surface waves are significiently suppressed, the frequency bandwidth is improved, the sidelobe levels are reduced and consequently the gain in the forward direction is improved by 14 db ( about 4 db higher than the value reported previously )

    設計了一種基底鉆周期圓孔結構的電磁（光子）晶體貼片天線，用fdtd方法並結合pml吸收邊界條件對該天線進行了研究，結果表明本文所設計的基底鉆孔型電磁晶體貼片天線取得了多方面的性能改善，與普通天線相比，基底中的表面波受到很大抑制，天線的帶寬增加，遠場方向圖上天線的旁瓣和背瓣被明顯削弱，向前輻射的增益由原來的12db增加到26db ，增加了14db ，比文獻上報道的gonzalo等人的研究結果提高了4db 。
  8. We presents a detailed studied of the linewidth of parametric light in clbo - opo caused by the linewidth of pumping beam, off axis phase matching, divergence angle of pumping, time above threshold, high gain coefficient of nlo crystal, fluctuate of cavitylength, spontaneous radiation, according to the momentum and energy conversion laws, and the sellmeier equations of the clbo, we calculated curves of the type - i and type - ii compared with the bbo ' s

    根據能量動量守恆關系和clbo的色散方程，詳細分析了由於泵浦光的線寬、泵浦光偏軸泵浦、泵浦光的發散角、泵浦光功率超過參量光振蕩閾值一定倍數、高增益系數、有效腔長波動以及自發輻射引起的參量光線寬，並得到了與bbo晶體在類、類相位匹配下比較的理論曲線。
  9. Generally speaking, the increase of the slot length and width can make the resonance frequency low, which is not the longer the better, however

    一般來說，縫隙長、寬的增加可使諧振頻率點降低，而較大的縫寬也降低了貼片的有效輻射面積，使增益降低，所以需要折衷協調。
  10. Finally, electronic components capable of withstanding the high radiation levels of a hane ? about 100 times as great as natural levels ? offer functional bandwidths only about one tenth the size of those offered by commercially available processors, a fact that can raise operating costs by an order of magnitude

    最後，可承受高空核爆高劑量輻射（約為自然劑量的100倍）的電子元件，運作頻寬僅為商品化處理器運作頻寬的十分之一，因此又將使用成本增加了一個零。
  11. In succession, the theory of chirped - pulse amplifier system is given in detail, firstly, studying from designing experimental light road and optical components to theoretical analysis, we par ' tly finished the system by ourselves. about ultr a - shoft pulse with a pulse - width of 9. 8f s and output power of 650mw and band - width of about l 20nm is output from oscillator source, secondiy, the stretching capacity of single grating four - pass stretcher is measured using abcd matrix combining collins function, and the effect of relativ e parameters to the streching ratio is also simulated. thirdly, a new type of disjunctional frequency moduiating function is provided according to the gain - narrowing and gain - saturation which are appeared in the co urse of amplification, under modulating the two effects are both controlled on some e xtent, fourthiy, the effect of ase that is often ignored by people is analyzed and the resolving methods are also given

    從光路、光學元件的自行設計到理論分析計算，初步建立了一臺實驗系統；採用abcd矩陣法結合collins公式計算了四通式單光柵展寬器的展寬量，並模擬了相關參數對展寬比的影響，對實驗具有指導意義；評價了再生放大器和多通放大器的優缺點，對放大過程中通常忽略的放大自發輻射現象（ ase ）進行了分析，並提出了相應的解決方法；針對放大過程中出現的增益窄化和增益飽和現象，對輸入種子脈沖提出了一種新的分段頻率調制函數，實現了對增益窄化效應和增益飽和效應的共同抑制；提出了系統的材料（包括放大介質和光路中的普通介質）正是融合高階色散的來源。
  12. We also have analyzed the photoluminescence ( pl ) spectra of some zno films, it turns out that the emission of ultraviolet light comes from the radiative recombination of excitons within nano - crystal energy band - gap, and the pl peaks move to smaller wavelength because zn are substituted by fe, co, and cu, which cause the size of the film grains smaller and the effective band - gap bigger. the red emission of zno films is due to, on the one hand, decrease of the film grains size which causes the emission intensity smaller and smaller until it disappears abruptly, on the other hand, the transition of electrons from deep donor level of the oxygen vacancies to the valence band

    另外，我們還對薄膜光致發光性質進行了分析和研究，結果表明：納米結構zno薄膜的紫外發光來源於帶間激子的輻射復合發光， pl譜的帶邊發射峰發生藍移是由於fe 、 co 、 cu對zn的替代使薄膜粒子的尺寸減小，使薄膜的有效帶隙增寬； zno薄膜的紅色發光，一方面是zno顆粒尺寸的減少，帶間的激子發射峰越來越弱直至猝滅，另一方面主要是與zno晶格中的o空位有關，由深能級復合發光引起紅光發射。
  13. The use of aperture coupled feeding widens the working band and increases the isolation. simultaneously, the application of round patch can upgrade the gain and radiation efficiency of the antenna

    採用口徑耦合饋電能夠展寬帶寬，提高隔離度，而採用圓形作為貼片形狀可以提高天線的增益和輻射效率。
  14. Numerical results show that if appropriate delay times of sources are exerted on elements of phased array, direction of acoustic beam radiated from the phased array can be steered so that the refracted compressional wave and the refracted shear wave can be excited effectively

    結果表明，只要在相控線陣的各陣元之間施加合適延遲時間的激勵信號，就可以調整輻射器的輻射聲束的方向，以有利於激發滑行縱波和滑行橫波；只要採用相對較低的頻率或使用加權相控線陣，就可以增大相控線陣的輻射主瓣角寬，以利於在任意地層有效激勵滑行縱波。
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