正向散射 的英文怎麼說

中文拼音 [zhēngxiàngsǎnshè]
正向散射 英文
direct scattering
  • 正 : 正名詞（正月） the first month of the lunar year; the first moon
  • 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） ...
  • 正向 : [電學] forward direction正向傳導 forward conduction
  • 散射 : [物理學] [電學] scattering; radio scattering; scatter; dispersion
  1. On a level with the floor on every stairhead there was a low window which resembled a deep, square venthole, while in lanterns fastened to the walls flaring gas jets crudely illuminatcd the surrounding squalor and gave out a glowing heat which, as it mounted up the narrow stairwell, grew ever more intense

    每道樓梯的平臺邊，貼近地面都有一扇低矮的窗戶，方方正正地凹進去，像是氣窗。一些懸掛在墻壁上的燈籠，發出煤氣光焰，強烈地照射著這種種貧寒景物，還散發出一股熱氣，向上升騰，並聚積在各層狹窄的螺旋形樓梯下。
  2. Forward propagation by tropospheric scatter

    正向對流層散射傳播
  3. Considering the diffuseness of the n - n scattering in the forward direction results in an increased reaction cross section. and also the angular distributions calculated in the glauber theory including these two corrections are in good agreement with the experiment data. in the investigation of the halo nucleus reaction with a loosely bound structure, one has to consider the strong spatial correlations among its constituents

    考慮了低動量轉移的核子?核子兩體散射在朝前方向上的彌散，使計算得到的反應截面增大，而且我們從彈性角分佈的分析中得到考慮了有限力程修正的效應無論是在峰的位置還是角分佈的絕對值都能更好地符合實驗。
  4. The optical - limit glauber theory has been of great success in describing the stable nucleus scattering at high energies. as it is extended to the nucleus scattering at low and intermediate energies, the modification of the coulomb field to the effective impact parameter and the diffuseness of the nucleon - nucleon ( n - n ) scattering in the forward direction has to be taken into account

    其中光學極限近似的glauber模型能很好地描述高能小角度的穩定核散射，進一步推廣應用於研究中低能穩定核散射時，需要考慮庫侖相互作用對有效碰撞參數的修正和核子?核子兩體散射在朝前方向的彌散。
  5. Forward propagation by ionospheric scatter

    正向電離層散射傳播
  6. In addition, a shadowing function applicable to multiple scattering is taken into account, which extends the calculation to the surface with anisotropic slope distribution

    引入考慮多次散射的遮蔽函數來修正掠入射情況下的散射系數，並將計算范圍擴展到均方根料率各向異性的二維粗糙面。
  7. For parameter a, there is a close relationship exist between a ( 9, sr ) in two different radar incident angle that can be expressed as : with considering the effects of soil texture, we get the final expression of the inversion model : where mv ( t1 ), mv ( t2 ) is volumetric soil moisture content in two different temp, c, d is soil type related parameters, and v ( t1 ), s ( t2 ) is coresponding bare soil radar backscattering coefficients. inversion results show that for the c band hh polarized radarsat scansar data with a range of incidence angle from 20 to 40, the soil moisture change value can be derived with an acceptable accuracy using the above model. the temporal and spatial soil moisture change patterns are associated with rainfall and vegetation cover, as well as the soil hydraulic characteristics

    利用最新發展的電磁波散射模型研究了不同植被覆蓋地表雷達波對地表土壤水分的敏感性，建立了半經驗植被雷達後向散射模型; 2 ） .研究發現在農作物等矮小植被覆蓋地表，植被層直接後向散射與植被類型相關，且在植被生長期，雷達後向散射系數對植被含水量的敏感性要高於對植被高度變化的敏感性; 3 ） .解決了單參數雷達地表土壤水分反演問題中，雷達入射角和地表粗糙度的影響這一難點問題; 4 ） .利用土壤介電模型校正了不同土壤類型對反演地表土壤體積含水量的影響; 5 ） .在以上成果基礎上，建立了完整的單參數雷達地表土壤水分變化探測反演演算法，經地表驗證，模型反演地表土壤水分變化值的精度為rmse = 0
  8. From mathematical models for inverse scattering in two dimensional inho - mogenous media including variable impedance, all kinds of probable mixed variable impedance boundaries and cracks, from interior and exterior trans - mission problems and radiation condition, ill - posed integral equation and indicator function method are formulated for the diverse of boundary iden - tification. it is shown that the kernel of the integral equation characters the boundary of scatterer, which is determined by solving it by virtual of regularity method, meanwhile, some numerical tests are given. 3

    在二維非均勻介質逆散射邊界識別的數學模型（包括一般的非均勻介質，正交各向異性介質，變阻抗介質，各種可能的混合變阻抗邊界問題）下，由內透射問題和外透射問題以及輻射條件，推導了上述介質的邊界識別的積分方程和指示函數方法，由於積分方程的核充分表徵了散射物的邊界，由此說明只要利用正則化方法求解該積分方程，就可以確定散射物的邊界。
  9. Simulation results for the forward projection of ot are presented for the cases of strong and low scattering media respectively based on monte - carlo ( mc ) method along with some discussions

    應用monte - carlo （ mc ）模擬方法，分別給出了強、弱兩類散射介質中光學ct正向問題的數值模擬結果，並將其與基於擴散方程的數值計算結果進行了比較。
  10. The conclusions are as follows : the ultrasonic intensity is proportion to the laser intensity ; the ultrasonic induced by a laser line source has much more advantages than by a laser point source, such as stronger energy, higher snr, more directivity and shape ; the intensity of cfpi ' s output signal is linear with ultrasonic vibration velocity, and is effected by incidence angle and scattered angle ; snr will increase by reducing cfpi ' s bandwidth, reducing incidence angle, increasing cavity ' s length and reflectivity

    在分析點光源激勵聲表面波機理的基礎上，求出了線光源激勵的超聲振動的位移表達式，發現線光源激勵的近場區表面波具有波形好，信噪比高，指向性好，幅度強等特點。通過理論推導，得出共焦fabry - perot干涉儀的輸出光強除了與樣品表面的振動速度成正比，並與入射角和散射角有關；適當減小cfpi的帶寬，增加腔長，增大鏡面反射率，或者減小檢測入射角都可以提高系統的信噪比。
  11. This paper has studied the mean attenuation, scattering, and back scattering cross sections of groups of small rotating spheroids about characteristics of microwave scattering when their rotatory axes are oriented at random in any direction in 2d plane and 3d space respectively under the condition of normal distribution, and that those physical quantities are changed with different variance, expectation and wave lengths of incident electromagnetic wave

    本文研究旋轉軸方向分別在平面內和空間中隨機取向呈正態分佈時的小旋轉橢球粒子群的平均衰減截面、平均散射截面、平均後向散射截面等微波散射特徵，以及這些物理量隨軸向分佈期望、方差及入射電磁波波長的變化。
  12. In this paper a kind of interferometric optical fiber gyroscopes based on mach - zehnder interferometric principle is proposed. the signals of this novel optical fiber gyroscope transmit along the positive direction, which avoid the interferometric noise, causing by the negative - directional scattering light and reflecting light, and the kerr effect noise. in this novel optical fiber gyroscope the light power ' s utilization efficiency is high, the output signal is strong

    本文提出一種基於mz干涉原理的干涉式光纖陀螺，該種光纖陀螺的光信號採用正向傳輸，避免了後向傳輸光對光源的影響，也避免後向散射、反射光帶來的相干噪聲以及光學kerr效應噪聲，光功率利用率高，輸出光信號大。
  13. First, the error transfer characteristic among subsystems at different space locations is analyzed, and the direct transfer characteristic from discrete standard measure space to the workpiece measure space under measured in measure system is proven. second, the error reconstruction condition and method of mapping from discrete standard measurement system to continuous standard measure space are analyzed. based on the measurement sample stationarity in limited distance, the prediction model ' s limited astringency and mensurability to the dynamic measuring error and the prediction error respectively are proven

    分析了不同空間位置子系統間的誤差傳遞特性，證明了在測量系統中離散標準量值空間向被測量工件量值空間的直接傳遞性；分析了離散標準量系統向連續量值空間映射的誤差重構條件和方法；基於測量樣本的有限距離的平穩性，證明了預報模型對動態測量誤差的有限收斂性和預報誤差的可測度性，進而證明了以離散標準量值系統對被測工件預報修正的可行性和合理性。
  14. The character of surface radiation and energy expended over soil temperature variation is that the temperature variation at surface, 5cm depth and 10cm depth are approximately sine curve on clear and cloudy day while this way the temperature variation at 20cm depth shows small extent anti - phase variation and the temperature under 50cm is no diurnal. in contrast, the temperature at 5m, 10cm and 20cm shows linear decrease and the soil - surface temperature is concaved on rainy day

    地表輻射和能量耗散反映在土壤溫度變化上的特徵是晴天和陰天地表、 5cm 、 10cm的溫度變化表現為準正玄曲線， 20cm深處的溫度變化呈現出幅度很小的反位向變化， 50cm以下地溫已不存在日變化特徵；雨天5cm 、 10cm和20cm的溫度呈線性遞減，地表溫度表現出由降雨引起的凹陷現象。
  15. Besides the advanced manufacturing technology and theory, a series of correlative technologies are required to the implement of networked manufacturing, especially the technologies of distributed computing, information integration and artificial intelligent etc. aiming at their limitations, the paper reconstructed the key supporting technologies employing the last network technologies and protocols, and established a new architecture of networked manufacturing. finally, the demonstrational researches are conducted with " flexible design and manufacturing system of key parts in large - scale antenna " as prototype. the distributed computing platform available of networked manufacturing is constructed with the distributed object technologies such as corba, dcom, rm1 etc, but those rpc modules bring obstacles to the development of global manufacturing due to their limitations

    網路化製造系統是個分佈、異構、鬆散耦合的智能系統，除了先進製造技術與理念本身，網路化製造的具體實現與實施還需要一系列相關技術的支撐，特別是分散式計算、製造信息集成、人工智慧等，論文正是針對當前網路化製造中上述關鍵支撐技術的不足與局限，運用下一代internet核心規范webservices及其相關技術如xml 、 soap 、 wsdl 、 uddi等，提出了面向全球的網路化製造全新分散式計算解決方案（ global - orienteddistributedcomputing ， godc ） ；構造了基於xml - schema的製造產品數據描述語言（ pdmlbased - xml - schema ） ，給出了express xml及steppart21 xml的映射規則，並對基於xml step pdm網路化製造信息集成方案進行了研究；同時運用webservices 、 xml等先進技術與規范對網路化製造的multi - agent模型、表示、通訊、調度等進行了研究與重構；最後，以「大型天線關鍵零件網路化製造」為原型進行了應用研究。
  16. By the weather data of typical year from meteorological observation, the building facing correction factors of heating load of 27 cities in china are listed. not only the effect of direct solar radiation on the building facing correction factor, but also that of diffuse solar radiation is considered. this paper also analysis the effect of different building facing correction factors on the calculation of heating load

    以各氣象臺站實測典型年氣象資料為基礎，綜合考慮了直射輻射和散射輻射兩種情況，給出了全國27個城鎮的各朝向修正系數，並對採用不同修正系數對房間負荷計算的影響進行了對比分析。
  17. Back scattering correction

    反向散射校正
  18. Scattering of the sh wave on a crack in an infinite of orthotropic functionally grade material plane

    波在正交各向異性功能梯度無限長條中心裂縫處的散射
  19. The emphasis on the applications of constrained regularization method is the identification of weight density distribution of hanging cable and rotating shaft, inversion of particle size distribution from light scattering data, the reconstruction of the atomatic radial distribution in exafs spec - troscopy

    其中，我們的重點是約束正則化方法在懸索與旋轉桿的重力密度識別、顆粒粒徑分佈的光散射反演、 exafs光譜學中原子徑向分佈的重構等問題中的應用，並同時進行了數值試驗。
分享友人
分享到 Line

分享到臉書