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dilatant adj.1.膨脹的,有膨脹之勢的。2.(顆粒物質)因變形...

dilatation

This dissertation presents a hypoelastic constitutive model with four material constants in describing the mechanical behavior of granular materials under loading . analysis results of the model have good coincidence with those of triaxial experiment of the standard sand under different relative density . the model can describe the contractant and dilatant phenomena of granular materials 提出了一種含4個材料常數的亞彈性本構模型,來描述散粒體在加載時的力學行為,本模型的分析結果與不同相對密度下標準砂的三軸實驗可較好地吻合,能反映散粒體的剪縮、剪脹現象,還對如何用三軸實驗數據來確定這4個材料常數,給出了適宜的計算方法。

The ultrastructure of the hepatocyte in bufo bufo gargarizans cantor between pro - hibernation and initial post - hi be rnation was studied in this paper . the results show that : 1 . the hepatocytes in pro - hibernation period have very plenty of glycogen granules , but nearly not glycog en granules in post - hibernation period ; 2 . the hepatocytes in pro - hibernation peri od have very developed rough endoplasmic reticulum , but a few scattered dilatant rough endoplasmic reticula in post - hibernation period ; 3 . the quantity of mitocho ndria , and the structure of nuclei and bile canaliculi in pro - hibernation period have not obvious difference from that in post - hibernation period ; 4 . two types o f hepatocytes in pro - hibernation were found . the significance of the results men tioned above is also discussed 冬眠前和出眠初期的中華大蟾蜍肝細胞的超微結構有如下特點: ( 1 )冬眠前肝細胞堆積有大量糖元顆粒,而出眠初期幾乎無糖元顆粒; ( 2 )冬眠前肝細胞的粗面內質網非常發達,而出眠初期的粗面內質網不發達,常呈零散膨大; ( 3 )線粒體的數量,細胞核和膽小管的形態結構在這兩個時期無明顯差異; ( 4 )冬眠前肝細胞可分為兩種不同的類型.對上述結果的生理意義作了討論

The deformation of slope caused by change of ground water level was investigated by adopting a fully coupled procedure and the state - dependent dilatant sand model 本文采用完全耦合有效應力分析程序和與狀態相關的剪脹性砂土模型模擬斜坡因地下水位變化而發生的變形。