梯度 的英文怎麼說

中文拼音 [tīdù]
梯度 英文
[物理學] gradient; [數學] grad
  • 梯 : Ⅰ名詞1 （梯子; 樓梯） ladder; stairs; steps; staircase 2 （姓氏） a surname Ⅱ形容詞（形狀像樓梯的...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  1. Photography sensitometry - black - and - white aerial camera films - determination of iso speed and average gradient

    航空攝影用黑白膠片iso感光度和平均梯度的測定方法
  2. Across geographic gradients, levins expects allopatric races or coenospecies exist.

    穿過地理梯度，萊文斯預料有分佈區不重疊的小種或近群種。
  3. To corner feature, both gradient magnitude change and direction change of gradient vector are discontinuity in a local image neighborhood, hence gradient - direction variation and gradient magnitude are used as another decision rule of the corner detection to improve antinoise

    為了提高抗噪聲，根據角特徵不僅灰度變化是不連續的，且相對周圍其他點的梯度方向也是不連續的，提出利用梯度角變化和梯度幅值作為角特徵檢測的另一個準則。
  4. By two ways, this paper debates the theory of fracture detection : on one hand by the way of edge detection in image processing ; on the other hand by time series analysis. the detection by time series analysis is more antinoise than edge detection in image processing. edge detection theory in image processing mainly includes correlation data, fuzzy edge detection, entropy operator edge detection and gradient edge detection

    圖像處理中的邊緣檢測的方法主要包括相干數據體法、模糊邊緣檢測法、基於熵運算元的邊緣檢測法、梯度邊緣檢測法；其中模糊邊緣檢測法比較依賴于參數的選擇，其渡越點兩邊的像素區別明顯；熵運算元的檢測方法則是檢測的圖像邊緣比較光滑，連通性好；梯度檢測法可以使用不同的運算元核，演算法比較簡單；相干數據體對于總體的大的裂縫的分佈具有比較奸的反應。
  5. Prism wheel : ladder, column, 4 arris, comet prism

    四棱鏡，梯度鏡，柱面鏡，斜面鏡，白光
  6. Value of serum and ascites protein gradients

    血清腹水蛋白梯度在腹水定性中的臨床價值
  7. Clinical application value of serum ascites albumin gradient

    血清腹水白蛋白梯度的臨床應用價值
  8. And plant organs ( roots, stems and leaves from rice, cotton, maize, tobacco le aves and some vegetables ) are diluted with sterile water ( serial dilution method ). when the samples are diluted to 10 - 4, 10 - 5, 10 - 6 times, o. 5ml dilute solution are put into selective medium and are cultived for 3 ~ 5 days and observed wheather the transparent zones are produced

    稻田土、桔園土、池塘底泥、水產養殖場的泥土等）或植物器官（水稻、棉花、玉米、煙葉及一些蔬菜的根、莖、葉）用無菌水稀釋（梯度稀釋法人在稀釋倍數為10葉、 10刁、 10 、時分別取0
  9. The growth dynamics of tree basal area of form. taxus chinensis var. mairei population in different altitude were discussed using the liu - logistic model, and the results showed that the altutide of 790 meters is more suitable to the survive of form. toms chinensis var. mairei population than 990 meters. plot sampling was selected and dynamic analysis was used to study the height structure of taxus chinensis var. mairei population, and the quadrate picture of height structure and the curve of survival rate were drew

    運用改進模型對南方紅豆杉種群在不同海拔梯度的種群優勢度增長進行了探討，表明海拔790m處的南方紅豆杉具有較大的環境容納量，但增長速度不快，海拔990m處的南方紅豆杉種群環境容納量不高，但具有較大的增長速度，這可能與群落的發育階段不同有關，兩地海拔均為南方紅豆杉適宜的生長海拔高度，相比而言，海拔790m的珍稀瀕危植物南方紅豆杉種群數量特徵的研究高度更宜於南方紅豆杉種群的生長。
  10. Gradient and color histogram fusing based head - tracking

    基於梯度和顏色直方圖相融合方法的人臉跟蹤
  11. At the same time, on the condition of different value of ph ( substrates : benzidine and a - naphthol ), catalytic reaction reveal distinct results as well

    接著進行了ph梯度實驗，發現不同ph條件下， dna和辣根過氧化物酶也表現不同之處。
  12. The obtained polysilane - polyacrylate gradient films showed no macro - interface with the silicone content reducing gradually from the top surface to the bottom one. dma thermograms indicated that polysilane - polyacrylate gradient films contained two glass temperatures with their bands drifting from and their range extending much from each component. the good properties of waterproof, calorifics, and ultraviolet - absorption were also determined by dsc, uv and water contact angle measurements

    結果表明：有機硅聚合物-聚丙烯酸酯梯度膜有一個較寬的玻璃化轉變溫區，玻璃化轉變范圍相對組分材料的玻璃化轉變范圍發生了擴展：有機硅聚合物-聚甲基丙烯酸酯梯度膜具有較好的熱學性能；硅含量的提高有利於改善膜層的憎水性能和紫外吸收性能。
  13. Purification : density gradient centrifugation ( sucrose & cscl )

    分離:密度梯度離心法（蔗糖&氯化銫）
  14. Density gradient centrifugation

    密度梯度離心
  15. Chemotaxis ( chemotactic movement ) a txis in response to a chemical concentration gradient

    趨化現象：一種對化學濃度梯度的趨化反應。
  16. Key experiments that validate mathematical models are also discussed, as well as molecular, cellular, and developmental systems biology, bacterial chemotaxis, genetic oscillators, control theory and genetic networks, and gradient sensing systems

    同時，亦會討論能驗證數學模型的重要實驗，同時也討論分子生物學、細胞生物學、發育系統生物學、細菌趨化性、基因震蕩器、控制理論、基因網路和梯度感應系統等。
  17. Material and methods normal rats of male sd were divided into young, adult, and aging groups. preparation of samples for light microscopy : animals were anesthetized by peritoneal injection of 6 % chloral hydrate ( 0. 5ml / 100g body weight ). perfusion and fixation of animals were carried out by a common procedure : 37 normal saline 50 - 100 ml and then 4 % paraformaldehyde pbs 100 - 400ml were perfused through the left ventricle of the heart, the whole procedure was lasted for about somin. the entire brain was dissected out and dipped in the fixative solution for 12h at 4. brain pieces targeted were choosen and then passed the graded alcohols for dehydration, dipping into paraffin for embeding, and reshaping the pieces

    2 ）磷酸緩沖液100400m ， 30分鐘灌注完畢，取出整腦，在上述固定劑oc ）內后固定12小時。切取觀察部位腦塊，然後，進行梯度酒精脫水，浸蠟，包埋，修塊，石蠟連續切片（德國leica石蠟切片機人切片厚度still ， zlllll ，蛋自甘油載片撈片， 60c烤箱過夜，二甲苯脫蠟，梯度酒精置換，浸水， h六染色，梯度酒精脫水，二甲苯透明，中性樹脂封片。室溫風干后，顯微鏡觀片， olympus萬能顯微鏡照相。
  18. Here is the result, during yvo4 odd - crystal growing under cz method, while fusibility contain nature - convection by temp - grads and impose - convection by crystal - circumvolve, which make it difficult to growth large dimension odd - crystal

    數值模擬的結果表明，在cz法生長yvo _ 4單晶過程中，由於熔體中存在著因溫度梯度引起的自然對流和晶體旋轉引起的強迫對流，使生長大尺寸單晶有著一定的困難。
  19. Such a range of variation is termed a cline.

    這樣一個變異區域稱為梯度變異。
  20. The cline is considered the probable result of geographic trends in precipitation, temperature, and perhaps also photoperiod.

    人們認為這種梯度變異可能是降水量，溫度也許還有光周期等地理趨勢造成的結果。
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