grain contrast 中文意思是什麼

grain contrast 解釋
晶粒襯度
  • grain : n 1 穀物，糧食〈英國叫 corn〉; 谷類植物。2 穀粒，籽粒。3 （沙、金、鹽等的）粒，顆粒，晶粒。4 些微...
  • contrast : n 1 對照，對比；（對照中的）差異。2 對立面，對照物；【攝影】反差。3 【修辭學】對照法。vt 使對照，...
  1. 2. the structure of purple soil is meliorated by sabaigrass. when contrast to bare land treatment and natural wild grassland treatment we knew that sabaigrass treatment and grass tree solid plating treatment reduced soil bulk density, enhanced soil capillary porosity, non - capillary porosity and porosity ratio, decreased soil sand grain content, enhanced soil clay grain and silt grain content so as to reduced the dispersal degree of soil, improved the aggregate capacity of soil, increased the amount of soil aggregate structure, meliorated the water permeability of soil, accelerated the form of good soil structure

    龍須草能改善紫色土的土壤結構龍須草純種植被和林草立體種植植被能不同程度地降低土壤容重，減少土壤砂粒含量，增加土壤的毛管孔隙度、非毛管孔隙度和孔隙比，以及增加粉粒含量，從而降低土壤分散度，提高土壤團聚性，增加土壤團粒結構數量，改善土壤的透水性，促進良好土壤結構的形成，最終提高土壤的蓄水保肥性能，增強土壤的抗蝕性和抗沖性。
  2. In this paper, the contrast of original image is enhanced by nonlinear transformation based on the characteristics of grain image ; after comparing several methods of threshold segmentation and analyzing their performance and applicability on grain image, the adaptive threshold segmentation based on gradient image is presented ; the noise of binary image is reduced with morphological filter, the hollow in binary image is filled in and a recognition algorithm is designed to remove agglomerate particle ; on the basis of mathematical morphology two methods are adopted to segment agglomerate grains that are not agglomerated tightly ; the parameters of size and shape, perimeter, area, diameter, complexlity, longest feret diameter, shortest feret diameter etc, are extracted. this technique is applied in measurement of pearl powder ' s particle size

    本文根據粒度圖像的特點，採用非線性對比度增強處理改善顆粒顯微圖像的對比度；對多種閾值分割方法進行比較，分析了它們的性能和用於粒度圖像的適用性，在此基礎上提出了一種基於梯度圖像的動態閾值分割方法；對獲取的顆粒二值圖像進行形態濾波和空洞填充，設計了識別演算法去除凝聚體；對重疊不太嚴重的粘結顆粒採用了兩種基於數學形態學的分割演算法；提取了周長、面積、粒徑、復雜度、最長feret徑、最短feret徑等大小和形狀特徵參數，對珍珠粉等粉體粒度進行了測量。
  3. Pvc file is soft to touch. also, its diversified colors and patterns high - gross figure, wood grain and fur etc present a sharp contrast to the icy and tedious surface of metal sheet

    Pvc膜所具有柔軟的手感和可提供選擇的多彩面的表面花色司覆高光花紋木紋皮草等，徹底改變了金屬板的冷冰單一的表面感覺。
  4. In the extended experiment we modulate the sand grain diameter and air humidity to contrast with the natural result, discuss the effect of diameter and humidity on sand incipience, propose some ideas and methods to control sand transportation and formulation of wind - blow - sand flow

    本文還拓展了實驗條件，通過調整沙粒粒徑配比和空氣濕度，完成了對比性實驗，並進一步探討了粒徑和濕度對沙粒起動的影響，提出了在沙漠工程中控制風沙流形成和沙粒輸運的思路和方法。
  5. Because of the characters in the alum image : strong disturbances, low contrast and random arrangement of alum grain, in the designing of the system we sort the images collected from digital camera and get the corresponding control of adding alum through three steps : pre - operation, vein analysis and particle processing

    通過分析得到礬花圖象的特點：干擾強烈、對比度低、礬花顆粒隨機分佈，在本系統的設計中，通過對數碼相機採集到的礬花圖象進行預處理、紋理分析以及粒狀統計三個步驟的處理，完成對礬花圖象的分類，以實現相應的加料控制。
  6. The most direct embodiment is the fluctuant images of grain - size parameters brought about by the bounce of grain - size eigenvalues. in order to discuss dune sedimentary and the cause of its evolvement, in this paper we also contrast every oxygen isotope phase

    為進一步探討砂丘沉積及其演變的原因，本文還將米浪溝灣地層剖面150ka以來不同時段樣品的mz和sc d的平均值與相同時期氧同位素諸階段進行了對比。
  7. Anthropogenic activities ( e. g. development, over - grazing, timber harvest ) can disrupt the structural integrity of oasis - desert landscapes and is expected to impede diversity communities across the landscape and make it fragmented. with human dimension and activities enhancing, the patchiness grain, edge density and landscape contrast become large, landscape diversity and patch fractal dimension decreased

    隨著人類活動的增強，斑塊粒度、邊緣密度、分散度、對比度變大，而景觀多樣性下降，斑塊分維數變小，人類生產經營活動導致了綠洲-荒漠景觀破碎化，綠洲和荒漠生態系統界面上的突變性、對比度和異質性增強。
  8. ( 5 ) analysis of data measured with multi - element regression, and optimized mathematics model of grain moisture measurement is brought forward based on contrast of several stat parameters. the particular operating of data fusion method based on parameter estimation is used. the validation is proved by increasing the measurement precision and reducing the ucertain factor

    （ 5 ）採用多元回歸分析的方法，對檢測數據進行了分析，在運用各種統計參數進行比較分析的基礎上提出了糧食水分檢測的最佳數學模型。分析了採用基於參數估計方法進行數據融合的基本原理，驗證了此方法對于減小不確定因素影響，提高檢測精度的作用。
  9. The contrast experiment of chemistry reducing process and hydrothermal treatment were studied. the results showed that the crystallinity of copper powders prepared by hydrothermal method clearly increased, and the grain size distribution became narrow comparing with the copper powder prepared by reducing process

    通過化學還原法與水熱法制備銅粉的初步對比試驗，證明水熱處理過的銅粉粒度分佈變窄，結晶度提高，從而具備了還原法所不能比擬的優良性能。
  10. In contrast, the lcmo thin films grown on lao substrates show an in - plane compressive stress. the afm images suggest that at the annealing temperature range between 650 and 750, with the annealing temperature increase, the grain sizes increase, the rms increase

    沉積在sto基片上的lcmo薄膜在面內方向受張應力作用，垂直方向上的晶格常數相對縮小，沉積于lao基片上的lcmo薄膜在面內方向受壓應力作用，垂直方向上的晶格常數相對增大。
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