maximal dose 中文意思是什麼
maximal dose
解釋
極大劑量-
The present studies aimed to find the responses of neurons and glias in the target and other brain areas of the linear accelerator - irradiated rats. in the first experiment, time - dependent neurons changes in the brain after hemispheric irradiation at an single - fraction maximal dose of 20 gy were observed by investigating the expression of an immediate early gene, fos protein. the results shown : compared with that of the un - radiated rats, the expression of fos protein in the irradiated brain decreased distinctly 24 hours and 1 week after irradiation
首先，利用即刻早期基因fos的表達，做了同一照射劑量（ 20gy ）照射大鼠半腦后不同存活期間（ 1d ， 7d ， 14d ， 2ld ， 28d ）大鼠全腦神經元動態變化的觀察，發現：受照射后1d 、 7d大鼠腦內各部位fos蛋白表達均明顯減少，隨著時間的延長，其fos免疫反應性細胞數量逐漸增加，照射后28d ，延髓、第四軍醫大學碩士學位論文腦橋內hs免疫陽性細胞數量恢復並超過正常對照組水平，但中腦、間腦及端腦內未恢復到正常對照組水平。 -
The traditional object of value reduction is getting the minimal reduction. this dissertation proposes the notion of support measurement, based on this notion we propose a new object of value reduction, that is getting the rules which have maximal support measurement. the new object dose not contradict traditional object and the data after value reduction
傳統的值約簡目標是得到最小的值約簡，本文引入分類規則支持度的概念，在此基礎上提出以約簡后實例的支持度盡可能大作為約簡的目標，這樣約簡后的數據可較大程度體現數據的原始信息，並且這與傳統意義上的最小約簡並不矛盾。
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