heterogeneous index 中文意思是什麼
heterogeneous index
解釋
不均勻指數- heterogeneous : adj 1 異種的，異類的。2 異質的，不純的，成份復雜的 （opp homogeneous）。3 【數學】非齊次[性]的，...
- index : n （pl es dices ）1 索引。2 指標，標準，標志。3 示[食]指 （＝index finger）。4 指數。5 【印刷】指...
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To improve understanding of the processes of heterogeneous land surface - atmosphere interaction, the utilization of satelli te remote sensing is indispensadle. in this paper, with the aid of satellite remote sensing and fiend observational data which observed during intensive observation of huaihe river bain energy and water cycle experiment hubex in 1998, the surface albedo, ndvi normalized difference vegetaton index and surface temperature in regional scale of hubex could be derived. then, the distribution of regional energy balance components could be estimated. this wor provided the physical foundation for the numerical simulation of the huaihe river basin energy and water pro cesses, and is important for us to further analyze the regional distribution of surface characteristic parameters ad energy balance components with the change of the weather situation in hubex in 1998. our work is still in a developing stage, some methods of retrieval in the paper should be improved further
利用1998年淮河流域加密觀測試驗hubex iop期間的資料，進行淮河流域能量平衡的參數化方案的研究，用noaa衛星的avhrr資料建立了試驗區地表特徵參數及能量平衡各分量的參數化方程，並對衛星遙感反演結果和試驗觀測值進行了對比，為淮河流域能量和水循環的數值模擬提供了物理依據。 -
The strength is a main mechanics performance index of the concrete. it has always been a focus of material scientific research of concrete. models about mechanics characteristic of concrete were mostly the understanding based on material macroscopical level of concrete in the past. its main characteristic turns the material ideal with heterogeneous, nonuniform nature into the even, continuous body and carry on modeling. this kind simplified and met project practice ' s demands to a certain extent, but it is difficult to study the influence produced toward strength of material of structure of the microcosmic or the mescoscopic within the concrete material with this kind of method
以往有關混凝土力學特性的模型大多是基於混凝土材料宏觀層次的認識，其主要特點是把具有多相、非均勻性質的材料理想化為均勻、連續體進行建模，這種簡化盡管在一定程度上滿足了工程實踐的需要，卻難以用這種方法來研究混凝土材料內部微觀或細觀結構對材料強度所產生的影響，不能說明材料內部結構如孔結構變化時強度的變化規律，也不能用於指導如何改進材料的組成和微觀結構而達到提高混凝土強度的目的。
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