本徵粘度值 的英文怎麼說
中文拼音 [běnzhǐniándùzhí]
本徵粘度值
英文
limiting viscosity number-
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。In all these 20 specimens, the embedded electronic steel - concrete slip transfer were respectively embedded on the steel shape webs and inside and outside of the flanges at certain intervals along the embedment length to measure the distributions of the interior slip, and the electronic strain gauges were also installed on the shallow grooves of each steel shape web and flanges at close intervals along the length to measure the distributions of the steel shape web and flanges strain, from which the distributions of bond stress were obtained. with these methods of measuring the distributions of slip and bond stresses, the establishment of the bond - slip constitutive relations were ensured
用力的平衡方程，得到推出試驗中型鋼混凝土粘結應力的大小及其分佈規律;根據鋼一混凝土電子滑移傳感器的滑移量測結果，分析了沿型鋼埋置長度的內部滑移分佈規律，並對試驗量測的特徵滑移值進行了統計回歸;根據粘結應力和內部滑移測量結果，得出沿型鋼埋置長度方向上各截面的局部粘結應力一滑移關系曲線，建立了局部粘結滑移本構模型嘆x ）一s仁， ， … ， c ， … c 。The contents include as follows : the influencing factors of the displacement ductility factor of the unbonded partially prestressed concrete frame structures, such as stirrup reinforcement characteristic value, nominal shear span ratio, axial compression ratio, the appearing order of plastic hinges and partial prestressing ralio ( ppr ) are discussed. the formula of displacement ductility factor of the unbonded partially prestressed concrete frame structures is suggested by regression analysis. with regard to the aseismic design and the request of ductility and energy dissipation, the restriction of the flat - beam / column sectional size and aseismic reinforced design are discussed
本文主要包括以下內容：討論了配箍特徵值、名義剪跨比、軸壓比、塑性鉸出現順序、預應力度等因素對無粘結部分預應力混凝土框架位移延性系數的影響，回歸了考慮影響因素的位移延性系數計算公式；對無粘結部分預應力混凝土扁梁框架結構，闡述了抗震設計對扁梁、柱截面尺寸的要求與限制；對滿足延性和耗能要求的無粘結部分預應力混凝土扁梁控制截面抗震配筋進行了探討；通過對無粘結部分預應力混凝土扁梁梁端的受力分析，改進了以往扁梁梁端扭矩設計值計算公式。With the distributions of bond stress and local slip, all specimens " bond - slip curves were simulated. and the calculating formula of characteristic slip and bond strength was conducted by mathematically disposal and statistically regression of bond - slip curves ; by revising the shape of bond - slip curves through " merge to one ", the model of bond - slip relation was confirmed and then a detailed definition on the model was conducted using position functions
結合粘結應力和局部滑移的分佈規律，擬合出了各試件的粘結滑移曲線，然後對曲線進行一定的數學處理，經過統計回歸后得到了特徵滑移值和特徵粘結強度的計算公式；對粘結滑移曲線形狀經過「歸一化」的數學處理進行修正，確定了基本的粘結滑移的本構關系式，並引入了一個位置函數對粘結滑移的本構關系進行了更為細致的描述。分享友人