散射比 的英文怎麼說

中文拼音 [sǎnshèbǐ]
散射比 英文
scattering ratio
  • 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
  • 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） ...
  • 比 : Ⅰ動詞1 （比較; 較量高下、 長短、距離、好壞等） compare; compete; contrast; match; emulate 2 （比...
  • 散射 : [物理學] [電學] scattering; radio scattering; scatter; dispersion
  1. This dissertation is focus on the temperature sensitive mechanism of the brillouin - scattering signal and on the basis of domestic techniques, the methods and approaches of signal detection and processing in distributed brillouin fiber - optical sensor system. a digital multi - point average method ( digital boxcar ) has been proposed based on the characteristics and the sorts of fiber - optical sensors and by analysis the feature of the brillouin - scattering signal, and also comparisons of all sorts of weak - signal detection theory

    論文在全面了解光纖傳感器的分類和特點及分散式光纖傳感器的原理和發展歷程的基礎上，通過分析被檢測的光纖布里淵後向散射信號的特點，研究和比較了微弱信號檢測的各種方法，最終選定了多點數字信號平均（數字boxcar ）的處理方案。
  2. 90 % uv below 400nm could be shielded by the nano - sio2 sol. the time of the artificial aging of nano - sio2 - modified coatings prepared by the way of in - situ dispersion method was about twice as long as that of the nano - sio2 - modified coatings prepared by dispersing the nano - sio2 powder in the coating directly. on the other hand, the fadeproof time ( reaching the second level of color aberration ) of the nano - sio2 - modified coatings was 1. 83 times as long as that of the national standard for the super coatings

    實驗證明:納米510 :溶膠具有很強的紫外散射屏蔽性能，對400nm以下的紫外光能屏蔽90 %以上;在位分散法納米510 :改性塗料的耐人工老化粉化時間比直接分散法納米510 :改性塗料提高了近1倍，耐變色時間（達到色差2級的時間）是國標優等品要求的1 . 83倍，較相應的未改性塗料提高了約25 % 。
  3. 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。
  4. The amount of scattering will thus be proportional to the number of electrons.

    於是散射的量將與電子數成正比。
  5. Compared with current instruments, the setup can decrease disturbance of disorder radiation by using double layer refractive index sample matching vessel, and it can increase collecting and transmitting efficiency of radiation by adopting single mode fiber with gradient refractive index lens. with a low power laser, the sample has a low scathe, and the laser and the measurement system can be integrated conveniently

    與現有的同類型儀器相比，該儀器採用雙層折射率樣品匹配池減少了雜散光的干擾；採用帶梯度折射率透鏡的單模光纖接收、傳輸散射光信號提高了散射光的收集傳輸效率；用低強度的激光避免了對樣品的輻射損傷，同時可以使激光器和系統集成在一起，整個系統小型實用。
  6. Based on all the research works mentioned above, a new technique to compute the caliber admittance matrix has been derived and applied for the problem of the scattering by electrically body with opening cavities

    在計算實例中，不同形狀的的腔體以及內部含有介質層的腔體對電磁散射的貢獻得到了比較和分析。在上述研究的基礎上，本文首次提出了用有限元方法計算腔體內部口徑導納矩陣。
  7. This method can save the space of memory and reduce the computation time. because only the parameters of scattering centers are stored and genetic algorithm is used to search for aspect angle, the method is very suitable for the employment in real - time and restrictive environment. in chapter 3, the architecture of mmw seeker is studied

    該方法以目標多散射中心理論為基礎，只需要存貯目標的三維散射模型參數，需要的存貯量較少；與常規的全姿態角匹配識別方法比較，基於目標散射模型的匹配識別方法，由於利用了遺傳演算法的全局尋優能力，計算量較小。
  8. In the last forty years the research for finding solitary wave solutions has been experienced a great growth and some sucessful methods including the inverse scattering theory, backland transform, hirota ' s bilinear methods and the homogeneous balance method have been presented in succession

    近四十年來非線性演化方程孤波解的解法研究蓬勃發展，相繼誕生了一些比較成功的求解方法，如反散射方法、 b （ ? ） ckland變換方法、 hirota方法以及齊次平衡方法等，這些方法多年來得到了廣泛的發展和應用。
  9. The dispersion caused from the chromatic aberrations of lens is smaller than that from diffraction effects of it

    與衍射效應產生的色散相比，透鏡本身的折射率色散很小。
  10. In this article, method of moment ( mom ) and floquet mode ( fm ) method will be applied to analysis the radiation and scattering of planar array and curved array

    本文分別採用比較經典的低頻方法?矩量法和一種專用於陣列分析的高頻方法? floquet模（ fm ， floquetmode ）方法對有限陣列電磁散射特性進行分析。
  11. The scatterings of minute bubbles and phase splitting drops in jun ware are computed respectively with mie scattering and rayleigh scattering in order to compare the difference of two methods by which generant mechanism of jun ware is analyzed

    摘要分別用米氏散射和瑞利散射對鈞瓷內小氣泡和分相液滴的散射進行模擬計算，以對比兩種計算方法的差異。
  12. Abstract : the seawaterdispersion of blue - green laser was analyzed in theory. parallel experiments to variedwater samples were conducted, and an analysis result was given

    文摘:對藍綠激光的海水散射進行理論分析，並進行不同水樣的對比實驗，給出了分析結果。
  13. Compared with the general radar, the harmonic radar can provide more imformation when it is used to detect the nonlinear scattering target, and therefore improvers the radar resolution

    與一般雷達探測技術相比，諧波雷達在探測非線性散射體時能提供更多的信息，提高了識別概率。
  14. The leakage gamma ray of iron spheres is measured by high pure germanium ( hpge ) detector. comparing with the bc - 501a scintillator detector, four characteristic gamma rays : 846. 77, 1238. 282, 1771. 351 and 2212. 933kev caused by inelastically scattered neutrons are coincident with the bc - 501 a scintillator detector. it shows that the measurements by bc - 501 a scintillator detector are accurate and credible

    利用高純鍺探測器測量泄漏能譜，並與bc - 501a測量的結果進行了對比，幾個典型的中子非彈性散射所產生的特徵射線峰846 . 77kev ， 1238 . 282kev ， 1771 . 351kev和2212 . 933kev ，對應的較一致，由此確定bc - 501a探測器測量結果是準確、可靠的。
  15. Scattering ion energy ratio

    散射離子的能量比值
  16. Based on the qps ionosphere model, the gradients model 、 quasi - cosine disturbed model and qps model with es layer are also introduced. then using the platform, the backscatter ionogram of these typical states are simulated, comparing with the real ionogram to find that they can match well, which proves the validity and practicability of the platform. the influence of the inputting parameters of these model and antenna patterns on the backscatter ionogram is also discussed in this paper

    本文在球形對稱準拋物電離層模型基礎上，分別引入了梯度模型、準餘弦擾動模型、包含es層的準拋物模型，然後利用該模擬平臺，對這幾種典型電離層狀態的返回散射電離圖進行了模擬，並與實測圖進行了比較，一致性很好，證明了該模擬平臺的有效性和實用性。
  17. In the first part, the basic knowledge of particle scattering in meteorology and physics was introduced. the particles to be discussed include aerosol particles, fog droplets and raindrops and the em wave band in the discussion is near - infrared. in the second part, the mie theory was briefly reviewed and was applied to investigate the scattering characteristics of spherical atmospheric particles, the result shows that in the visibility measurement meter using forward - scattering method, when the working wavelegth is between 0. 8 m ~ 2 m, the scattering angle is between 25 ~ 40, the distinguishability and the relative scattering intensity would be better than those under other conditions. in the third part, the superellipsoid was used to describe a wide range of shapes such as spheres. ellipsoids and cylinders. an improved t - matrix method which can be used to calculate arbitry shaped particle ' s scattering field was introduced, and the scattering characteristics of non - spherical atmospheric particles was investigated with this method

    計算結果表明，從相對散射強度、同一方向上不同粒子散射的可區分程度來看，在散射式能見度探測儀器中，工作波長介於0 . 86 m 2 m ，探測角度選取前向25度40度時，探測的結果將會是比較理想的。第三部分中，使用超橢球方程來統一描述各種非球形粒子的形狀，然後使用t矩陣方法計算了一些形狀的非球形粒子的近紅外散射特性。另外，在本文中還針對球形粒子的散射場提供了一種三維可視化方法，使對散射場強度的空間分佈的理解更加簡單，直觀。
  18. Based on the extended boundary condition method and addition theorem of vector spherical functions, this paper study the light scattering problems of aggregate spheres from the angles of a single sphere, two - sphere system and multi - spheres system

    本文基於擴展邊界條件法及矢量球諧函數的加法定理，通過嚴格求解maxwell方程所得到的散射傳輸矩陣，對與入射波波長可比擬的群聚球形粒子的散射問題進行了研究。
  19. Effect of atmospheric back - scattering ratio on measurement of wind velocity

    大氣後向散射比對風速測量的影響
  20. At last, in the circumstances of a wide - band radar is used for target detection, the length of received signal is much longer than that of the transmitted pulse signal. because the traditional matched filter collects only a small part of the energy of received signal, it is not good for detection. the generalized matched filter is obtained by improving the traditional matched filter and can collect all energy of received signal, which is good for detection

    最後，在寬帶條件下，雷達發射脈沖信號，雷達的目標回波的時間長度要遠遠大於發射信號的時間長度，傳統的匹配濾波只能收集一部分回波信號的能量，這對于檢測電磁散射比較弱的目標是不利的，而廣義匹配濾波對傳統的匹配濾波進行改進，可以將目標回波的全部能量收集起來以提高檢測性能。
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