散射閾 的英文怎麼說

中文拼音 [sǎnshèyù]
散射閾 英文
scattering threshold
  • 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） ...
  • 閾 : 名詞1. [書面語] （門坎兒） threshold; doorsill2. （界限; 范圍） threshold
  • 散射 : [物理學] [電學] scattering; radio scattering; scatter; dispersion
  1. Abstract : a new method for determining proximity parameters, and in electron - beam lithography is introduced on the assumption that the point exposure spread function is composed of two gaussians. a single line is used as test pattern to determine proximity effect parameters and the normalization approach is adopted in experimental data transaction in order to eliminate the need of measuring exposure clearing dose of the resist. furthermore, the parameters acquired by this method are successfully used for proximity effect correction in electron - beam lithography on the same experimental conditions

    文摘:在電子散射能量沉積為雙高斯分佈的前提下，提出了一種提取電子束光刻中電子散射參數，和的新方法.該方法使用單線條作為測試圖形.為了避免測定光刻膠的顯影閾值，在實驗數據處理中使用歸一化方法.此外，用此方法提取的電子散射參數被成功地用於相同實驗條件下的電子束臨近效應校正
  2. This paper summarized several main research methods on this topic in our country, including " the determinant of laser - induced - damage of thin film by the scan of transmission and reflectance method ", " study of the phenomena on laser - induced thin film damage by photo - acoustic method " and " the measurement of damage threshold on optical thin film by diffusion method ", etc

    本文總結了目前國內幾種主要的研究方法，包括用透射反射掃描法檢測光學薄膜的激光損傷，用光聲法測定光學薄膜的破壞閾值，以及用散射法來測量光學薄膜的損傷閾值等。
  3. The effects of air ' s absorption of heat, scatter, turbulent and thermal blooming on the laser beam transmitting under the air breakdown threshold value are analysed when laser transmit in the air and the result can be used designing of the laser system

    摘要系統分析了激光在大氣中傳輸時在擊穿閾值以內，由於大氣汽溶膠的吸收、散射、大氣湍流、大氣熱暈等線性非線性問題對光束控制系統的影響，為激光系統提供指導。
  4. Vertical - cavity surface - emitting lasers ( vcsel ' s ) have distinct advantages over conventional edge emitting lasers, such as small divergence angle, single longitudinal mode operation and very low threshold current. they are especially suitable for making two - dimensional ( 2 - d ) arrays as well as vcsel ' s based integrate devices

    垂直腔面發射半導體激光器（ vcsel ）與傳統的邊發射半導體激光器相比，它具有發散角小、單縱模工作、非常低的閾值電流等優點，尤其它適於二維面陣集成和與其它光電子器件集成。
  5. It was found that the simple triangular shape distribution would cause " two - peaked " energy distribution near the threshold energy, which must affect the group transfer matrix

    閾能處三角形能譜分佈的近似描述，導致產生了群散射矩陣的「雙峰」現象，而閾能處矩形能譜分佈使平均次級中子能量（
  6. Among those nonlinear effects, stimulated brillouin scattering has the worst effects on the fiber hydrophone system due to its low threshold and it produces a new light wave which is different from the incident light in frequency. this dissertation discusses the physical mechanism and quantum explanation of sbs in fiber

    在眾多非線性效應中，由於受激布里淵散射（ stimulatedbrillouinscattering ）效應的閾值最低，且產生了與入射光場不同頻率的新的光場，故對光纖水聽器系統而言，影響最大的即是受激布里淵散射效應。
  7. 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。
  8. The principle advantages of vcsels over conventional edge - emitting lasers lie in ultralow threshold current, small far - field divergent angle, high modulation frequency, potential for wafer level testing and the ease for single longitudinal mode operation and two - dimension integration. as a result they show considerable promise for applications such as optical fiber communication, parallel optical interconnects, optical information processing and neural networks, etc. a direct coupling theoretical model in quasi - three - dimension for the gain - wave guide vertical - cavity surface - emitting lasers has been created in this paper

    它與傳統的邊發射激光器相比具有更優越的特性，例如，具有極低的閾值、較小的遠場發散角、調制頻率高、易實現單縱模工作和二維集成，無須解理封裝即可進行在片測試等，所以，它被廣泛應用於光纖通訊、并行光互聯、光信息處理、光神經網路等領域。
  9. A new data compression technique, called the threshold discrete fourier transform ( tdft ) method, is proposed to efficiently compress the scattered field data from complex targets

    提出了閾值dft （ tdft ）演算法用於實現基於雷達目標強散射中心分佈的rcs數據壓縮。
  10. We also experimentally observed the effect of sodium atom - molecular collisions and sodium atom - atom collisions on the line - shape and intensity of fluorescence spectra. in addition, the optically pumped infrared stimulated emission and energy transfer up - conversion process are observed in pr3 + : y2sio5, and with the threshold energy, temperature dependence and divergence angle for the stimulated radiation are measured

    此外還研究了摻雜在固體y _ 2sio _ 5中的pr ~ （ 3 + ）的光泵紅外受激輻射和能量轉移上轉換，分別測得了紅外受激輻射的閾值能量和發散角，並擬合得出了能量轉移速率。
  11. When the interaction length or gain coefficient is changed, the sbs threshold is changed, and the intensity value of optical limiting is altered

    當改變相互作用長度或者介質增益系數，即可以改變受激布里淵散射的產生閾值，進而改變輸出脈沖空間限幅的幅值。
  12. The research is mostly concentrated on the spectrum quality of srs in the birefringence fiber, then making a systematic analysis of srs both in experiment and in theory, at the end of the paper drawing some conclusions

    其次在實驗上和理論上對雙折射光纖中的受激喇曼散射的光譜特性進行了系統研究，分析了各級喇曼譜的頻移，譜寬和各級喇曼譜的閾值。
  13. Following are detailed steps of this system : in the segmentation section, we use three successive frames to detect the motion infomation of the pictures, by using blockmatching algorithm in two successive frames twice, we can get two pictures composed of motion blocks of the moving object, then we find out the common motion blocks of the two pictures, experiments prove these blocks approximately compose the moving object. after getting the motion blocks, we calculate the center of these blocks as the center of the moving object, thus we can use the center point as the origin, construct n straight linesjoining the boundry of the image and the center. on each line, we can find out a proper point near the object contour according to some criteria, then we use these n points as the initial points of the snake and let the snake converge on the object contour, thus finish the segmentation of the moving object

    本方案的實現過程為：分割部分：對運動目標的前後三幀進行兩次塊匹配運動檢測，通過找出兩個匹配結果中運動圖像塊的公共部分，獲得組成運動目標的圖像塊；求出運動目標圖像塊的形心作為運動目標的中心，以此中心為端點，向四周發散出角度間隔為的n條射線，射線的另一端終止於圖像的邊緣；在每條射線上按照一定的準則（點的梯度和與目標中心的距離在一定閾值范圍內）找出n個初始輪廓點；以這些初始輪廓點作為主動輪廓模型（ snake ）的初始點，用改進的貪婪演算法使snake收斂到待分割的運動目標輪廓上。
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