相對粗糙率 的英文怎麼說

中文拼音 [xiāngduìcūcāolǜ]
相對粗糙率 英文
relative roughness
  • 相 : 相Ⅰ名詞1 （相貌; 外貌） looks; appearance 2 （坐、立等的姿態） bearing; posture 3 [物理學] （相位...
  • 對 : Ⅰ動詞1 （回答） answer; reply 2 （對待; 對付） treat; cope with; counter 3 （朝; 向; 面對） be tr...
  • 粗 : Ⅰ形容詞1 （長條東西直徑大的） wide （in diameter）; thick 2 （長條東西兩長邊的距離寬的） wide （i...
  • 糙 : 形容詞（粗糙; 不細致） rough; coarse; crude
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 相對 : 1. （面對面） opposite; face to face 2. （非絕對的） relative 3. （比較的） relatively; comparatively
  • 粗糙 : （不精細; 不光滑; 不細致; 草率） coarse; rough; crude
  1. Based on the diopter status of myopia and hypermetropia, the paper presented the principle of excimer laser refractive surgery, the change of impacting cornea curvature on the cornea diopter. in this chapter, we also discussed excimer laser - corneal tissue interactions and photoablation. determine the relationship between the fluence of arf excimer laser and the cornea ablation rate, attain the relationship between the energy density and the ablation depth

    研究了激光與生物組織相互作用、光蝕作用及準分子激光消融角膜的機理；首次定量研究193nm準分子激光高斯光束的切削量與能量密度的關系，計算單個激光脈沖角膜切削量；發現了角膜曲率對切削效果的影響，首次提出了角膜曲率半徑、切削位置與切削深度的關系；首次定量確定了激光光斑參數及其排列方式對術后角膜表面粗糙度的影響，為更精確實現角膜切削和提高切削后角膜表面光潔度、減少手術后角膜渾濁及角膜表面術后不規則提供了理論依據。
  2. A transfer model is established, which can be used to study the interaction between the land surface physical processes of inhomogeneous region and the structure of atmosphere boundary - layer over urban and rural terrains. the model has simulated surface heat flux, surface temperature, temperature profiles, height of mixture layer and so on. and the differences between urban area, suburban area and rural area have been compared. this model mainly depends on the parameters below : surface albedo, surface roughness coefficient, moisture available coefficient of soil, thermal capacity and thermal diffusion coefficient of errain, cloudage. the result shows that this model can simulate the structure and eigenvalues of atmosphere boundary layer and their changes in a day. parameters used in this model aim at beijing city, and the time is at the beginning of september. to other cities, or other time, the parameters should be adjusted accordingly. in addition, being adjusted, the model can also be used for other homogeneous and inhomogeneous terrains

    模式主要依賴于以下參數和物理量：地面反照率下墊面粗糙度土壤的可含水量下墊面的熱容量和熱擴散系數雲量等參數。結果表明，本模式能合理地模擬不同地表熱量平衡地表氣溫混合層高度湍流交換系數湍流動能位溫廓線等，以及它們的日變化。該模式所取參數主要針對北京市，時間為九月初，對于其他城市，參數應作相應的調整。
  3. The scattering intensity of rough surface is computed, while the roughness, polarization, observation station and the refractive index are different, and the wavelength of incident light is 0. 48 m. the results indicates the rougher the rough surface is, the less the coherent scattering is ; the influence of the smaller refrective index is more than larger one by the polarization

    計算了入射光波長為0 . 48 m時，不同粗糙度，偏振態，散射角以及不同折射率的粗糙面散射強度，結果表明，粗糙面越粗糙，相干散射越小，非相干散射越強;偏振態對折射率大的粗糙介質面影響較小，對折射率較小的介質面的影響較大。
  4. Abstract : in light of thicker grain and smaller viscosity of debris flow, a segmented simulation of the debris flow with flume is presented. for the first time. more difficult resistance similarity is brought about by geometric rate without excessive coarsing and discontinuous similarity of sand grain composition in model is eliminated with different grain scale. on this basis the density similarity and sand conveying similarity are achived. the method presented is verified through a model test case

    文摘:針對水石流顆粒粗，粘性小的特點，提出了利用水槽進行分段模擬水石流的設想，首次通過幾何變率解決難度較大的阻力相似問題，改變了以往過度加糙的方式;通過變粒徑比尺的方法消除了模型沙級配不連續相似的問題，較好地實現了固體物質級配相似，達到了泥石流的密度相似和輸沙相似.通過水槽概化模型試驗實例，對本方法進行了驗證
  5. Firstly, the influence of reaction time between laser and material on the roughness is studied by changing the speed of laser beam. secondaly, the optimized parameters are found by adjusting laser power and defocus

    一方面，通過改變激光加工頭的運動速度，考察激光與晶元材料的相互作用時間對側壁表面粗糙度的影響;另一方面，調整激光的功率和離焦量，找出最優化參數。
  6. In 6. 635, topics covered include : special relativity, electrodynamics of moving media, waves in dispersive media, microstrip integrated circuits, quantum optics, remote sensing, radiative transfer theory, scattering by rough surfaces, effective permittivities, random media, green ' s functions for planarly layered media, integral equations in electromagnetics, method of moments, time domain method of moments, em waves in periodic structures : photonic crystals and negative refraction

    本課程所覆蓋的論題包括：狹義相對論、運動媒質的電動力學、色散媒質中的波、微帶集成電路、量子光學、遙感、輻射傳輸理論、粗糙表面上的散射、有效介電系數、隨機媒質、平面層狀媒質的格林函數、電磁學中的積分方程、矩量法、時域矩量法、周期結構中的電磁波：光子晶體和負折射率。
  7. 2 ) radar incidence angle and surface roughness correction : to make radar incidence correction and eliminate the surface roughness effects, a wide range of surface parameters ( soil moisture, surface rms height, correlation length, incidence angle ) was input to the ibm model to simulate the effect of surface roughness and radar incidence angle on the sensitivity of soil moisture to the radar backscattering coefficient. a simple model was established to simulate the effects of incidence angle and surface roughness. 3 ) establishment of soil moisture change inversion model : according to a modified ibm model simulation results, the bare surface backscattering coefficients can be expressed as a funtion of the dielectric component for a given surface roughness when the surface slope greater than 2. 0, which is valid for most nature surface : in above equation, r0 is the surface reflectivity at normal incidence

    本研究中，首先利用基於微波輻射傳輸方程的微波植被模型和積分方程（ iem ）模型模擬了各種地表土壤水分含量情況下，植被覆蓋、地表粗糙度（包括地表均方根高度和相關長度） 、雷達入射角對c波段（頻率4 . 7ghz ）水平極化（ hh ）雷達後向散射系數的影響，在此基礎上，建立模型消除了植被覆蓋、地表粗糙度、及雷達入射角對雷達後向散射的影響，利用多時相50m解析度radarsatscansar雷達後向散射系數圖像反演得到了地表土壤水分變化模式信息。
  8. Standard lamp and diffusers are very important calibration elements, in chapter three, first uv and vuv radiometric standard for calibration are introduced. then the fabrication and characteristics of baso4 diffuser and alminium diffuser are researched, the baso4 diffuser ' s hemispheric reflectance and bi - directional reflectance distribution function were measured and compared with lambtian surface, and the deviation from that of lambtian surface is given. in the experiment, al diffuser ' s brdf is researched, obtain the change of spectral characteristic of al diffuser, compare al diffuser ' s brdf before and after coated with al + mgf2, and different al diffusers with different surface roughness

    鋁漫反射板作為一個漫反射光學元件安裝在太陽紫外光譜監視器的入射狹縫前，太陽紫外光譜監視器在軌測量時，太陽輻射入射到鋁漫反射板后進入入射狹縫，光譜輻照度的角度是變化的，本章測量了鋁漫反射的相對雙向反射分佈函數，研究了鍍膜（ al + mgf _ 2 ）前後光譜反射率的變化，漫反射的光譜特性及漫反射板表面粗糙度對相對雙向反射分佈函數的影響，使得測量數據反演成為可能。
  9. An dynamic algorithm of attribute reduction is presented. in fact, data are always changing in database, so a dynamic algorithm of attribute reduction based on rough logic is presented, which can get new minimum decision algorithm based on the original one when new object is added. it can avoid reduction from large original decision table, update and vindicate the original algorithm, and improve the efficiency of attribute reduction

    2 .提出了一種增量式屬性約簡演算法針對實際問題中數據庫中的數據是不斷變化的這一情況，以粗糙邏輯為基礎，針對新加入的對象相對于原來的極小決策演算法而言是全新的這種情況，提出了一種增量式屬性約簡演算法，從而避免每次從龐大的原始決策表開始約簡，實現了對原極小決策演算法的更新與維護，提高了屬性約簡的效率。
  10. To make theory confide with experiments, it is necessary to correct the casimir effect for real media including effects of nonzero temperature, finite conductivity of the boundary metal and surface roughness and also the combined effect of these important factors

    根據實際的實驗條件，需要對casimir效應作一些相應的修正，其中主要考慮有限溫度、金屬表面的粗糙程度及金屬邊界的有限導電率等因素對casimir力的影響。
  11. In traditional low bit - rate speech coding, considering that ears are not sensitive to phase information, the phase information is often neglected, and this will result in coarse and harsh speech quality, and it even may lead to inflection in pitch

    在傳統的低比特率語音編碼中，考慮到人耳對相位信息不敏感而經常忽略相位信息，這將導致語音粗糙、刺耳甚至音調發生改變。為了獲得高質量的聲碼器，語音的相位信息是不能不考慮的。
  12. ( 3 ) with the condition of table 4. 3, with increasing of temperature the average reflectance value decreases and the minimum reflectance point moves towards red direction. furthermore, temperature has little effect on the extinction coefficient ( k ). however, the refractive index value decreases remarkably when the temperature reaches about 240, but it does not change much when the temperature is below 180 and the thickness of the films increase when increasing the temperature

    （ 3 ）隨著溫度的增加薄膜的平均反射率降低並且反射低谷向長波方向移動;溫度對消光系數k影響不大;當溫度低於180薄膜的折射率變化不大，當溫度達到240左右時薄膜的折射率明顯降低;薄膜的厚度隨溫度的增加而增加;隨著溫度的增加tio2的晶體結構由混晶變為單一的銳鈦礦相，薄膜的表面的顆粒由多變少，表面形貌由粗糙多孔變得細膩平滑。
  13. In company with the modernization of economy and society, the amount of crimes is arising amazingly while the judiciary resource ca n ' t increase correspondingly. so it is impossible for the wide application of formed judicial procedure, and the action efficiency becomes the unavoidable practical problem. only the diversion system can make the criminal judicial organization remain the basic ability to treat the crimes and avoid the phenomenon that the state has no capacity to prosecute all crimes, only standing by toward all kinds of crimes and simplifying the formal judicial procedure

    與經濟和社會的現代化相伴生，許多國家的犯罪勢頭都在迅猛增長，而國家的司法資源卻往往不能得到同樣的增加，因此正式司法程序的普遍適用已經不再可能，訴訟效率問題成為人們無法迴避的現實問題，只有採取分流制度，才有可能使國家刑事司法系統保持對犯罪的基本應對能力，避免出現國家無力全面追訴犯罪、從而對眾多犯罪坐視不管、以及將正式司法程序也高度簡略化、粗糙化的現象。
  14. Compared with natural aggregate, the accumulation density of recycled aggregate is lower, the water absorption is higher, the surface is rougher and the crush index is greater, the performance of concrete changes evidently

    再生骨料與天然骨料相比，堆積密度小、吸水率高、表面粗糙且壓碎指標大，對再生混凝土性能影響明顯。
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