The basic laws of the shannon entropy values of urban land - use composition 城市土地利用結(jié)構(gòu)的熵值定律
The laws of the information entropy values of land use composition 區(qū)域土地利用結(jié)構(gòu)的信息熵分異規(guī)律研究
A study on shannon entropy values of urban land use structure in liwan district , guangzhou city 廣州市荔灣區(qū)土地利用結(jié)構(gòu)信息熵分析研究
The atom of which number of valence electron is half of the sub - layer of electron has magnetic entropy value according to the theoretic calculation 根據(jù)理論計算,價電子為半滿的原子全角動量量子數(shù)j值比較大,從而有大的磁熵值。
In view of the uncertainty of indexes for evaluating air quality the entropy value theory is applied to combine with fuzzy matter - element method to establish an entropy fuzzy matter - element model 摘要鑒于大氣環(huán)境質(zhì)量評價中客觀存在的不確定性和模糊性,將熵值理論與模糊物元分析法相結(jié)合,應(yīng)用于大氣環(huán)境質(zhì)量綜合評價中,建立了基于熵權(quán)的模糊物元模型。
( 2 ) a new texture classification algorithm based - on the lifting wavelet transform in suggested utilizing wavelets " perfect performance in spatial - frequency localization and the lifting wavelets " in - place operations . it computes the entropy values of the sub - frequency images disposed by the two - layers " lifting wavelet transform , and has merits of low feature dimensions , low computational cost and good capability 利用小波分析的時頻局域化特性以及提升小波的本位運(yùn)算等優(yōu)點(diǎn),對紋理圖象進(jìn)行提升小波分解,再對得到的高頻子圖繼續(xù)做第二層小波分解,然后以各頻率子圖的圖象熵作為圖象的紋理特征進(jìn)行紋理分類。
By combine the entropy value theory and attribute recognition model together , attribute recognition model based on coefficient of entropy is set up and applied to evaluating groundwater quality by the new method , coefficient of weight calculated with law of entropy value is exercised the problem of calculating coefficient of weight subjectively 通過將熵值法與屬性識別模型相結(jié)合,建立了基于熵權(quán)的屬性識別模型,應(yīng)用一種新方法進(jìn)行地下水水質(zhì)綜合評價,它運(yùn)用熵值法來確定權(quán)重系數(shù),能夠避免權(quán)重確定的主觀性問題。
Actually , the application research of a theory in a new field requires continuous efforts , progressive promotion for somewhat perfect , and the endeavor to lower the entropy value to the maximum ; however , it should be aware that the theory will by no means in exact conformity with the facts , due to the existence of base entropy 一個理論在一個新的領(lǐng)域的應(yīng)用研究,必然要通過許多人的努力,不斷完善,不斷改進(jìn),以求達(dá)到科學(xué)應(yīng)用,最大限度地降低其熵值;但是由于基熵的存在,理論與實(shí)際情況永遠(yuǎn)不可能完全吻合,這一點(diǎn)毋庸置疑。
In chapter 4 , using the points of view of dissipative theory , the dissipative structure characteristics of ecological - economic system in the changjiang river basin is analyzed , the development course and evolution characteristic of the ecological - economic system in the changjiang river basin is demonstrated , and at last the negentropy sources and the entropy value of the ecological - economic system in the changjiang river basin is radicated 第四章運(yùn)用耗散結(jié)構(gòu)觀分析研究了長江流域生態(tài)經(jīng)濟(jì)系統(tǒng)耗散結(jié)構(gòu)特征,并用耗散結(jié)構(gòu)理論論證了長江流域生態(tài)經(jīng)濟(jì)系統(tǒng)演變過程與演化特征,最后確立了長江流域生態(tài)經(jīng)濟(jì)系統(tǒng)的負(fù)熵源與熵值。