Crisis management as related to entropy change 危機(jī)管理與熵變
Research on entropy change model for enterprise system based on dissipative structure 基于耗散結(jié)構(gòu)的企業(yè)系統(tǒng)熵變模型
Magnetic properties and magnetic entropy change of ce2fe16al near curie temperature 化合物在居里溫度附近的磁性和磁熵變
Entropy change in environment 環(huán)境熵變
Semg signal complexity and entropy changes during exercise - induced local muscle fatigue 局部肌肉疲勞的表面肌電信號復(fù)雜度和熵變化
This paper analyzes the factors to influence the information entropy and establishes the information entropy change model via economic data 根據(jù)同期的社會經(jīng)濟(jì)數(shù)據(jù),分析了影響信息熵變化的因素,并建立信息熵變化模型。
Among three kinds of extractant , the entropy of tbdooda extraction is biggest , that of tbopda is least . lt means that configuration entropy makes the greatest contribution to the whole entropy change of extraction 只有tbopda適宜于從hllw中問收分離鋼系和瀾系元素,對三價崩讕蘋取分配比高。選擇的稀釋劑為40煤油辛醇。
But the population genetic that based on the statistic model ca n ' t explain the entropy change disciplinarian in the process of evolution , and the genetic diversity index system not enough prefect 但目前建立在統(tǒng)計(jì)學(xué)基礎(chǔ)上的群體遺傳學(xué)尚未闡述清楚進(jìn)化過程群體的熵變規(guī)律,而且遺傳多態(tài)性分析的指標(biāo)體系不夠完善,因而必須用信息論方法科學(xué)描述和豐富遺傳多樣性的指標(biāo)體系。
By using theories from the relevant disciplines such as geography , mathematics , physics , ecology , and system sciences , this thesis develops a framework employing the concept of system entropy to represent the state function of the man - earth relationship system . in this framework the entropy change is used to show the development change of the system , and the entropy flow to express the flow among the spatial parts of the system . following the framework , and based on a large set of household data from surveys , the thesis makes a quantitative analysis of the village - level man - earth relationship system from a micro - perspective 借助地理學(xué)、數(shù)學(xué)、物理學(xué)、生態(tài)學(xué)、系統(tǒng)科學(xué)等有關(guān)學(xué)科理論,根據(jù)實(shí)地調(diào)查的大量農(nóng)戶數(shù)據(jù),從微觀視角對村域人地關(guān)系系統(tǒng)進(jìn)行了定量分析,用人地關(guān)系系統(tǒng)熵來表征人地關(guān)系系統(tǒng)的狀態(tài)函數(shù),用熵變來反映人地關(guān)系系統(tǒng)的發(fā)展變化,用熵流來表示人地關(guān)系系統(tǒng)各空間型式地域主體之間的流動。
So must use information theory method depict and abundant the genetic diversity index system . in addition to , the introduce of molecule biology technology and the research of nucleotide sequence evolutive give a new method for population genetic , so must do deeply research about the analysis method of dna sequence data = the research main about the follows : there are three parts about the information model of population genetic : one about the shannon information entropy property of equilibrium population and the entropy change in the process of establish equilibrium ; another research is about the diversity measure - ment of genetic variation ; lastly , research the shannon information measurement about the disequilibrium gene variation . the result is : 1 to a definite gene distribution , the genotype entropy reach the maximum at the equilibrium population , the process of population from disequilibrium to equilibrium , the entropy get large and large 此外,分子生物技術(shù)的介入及核苷酸序列進(jìn)化的研究都為群體遺傳學(xué)的深入研究提供了新的途徑,但關(guān)于dna序列數(shù)據(jù)的分析方法需要作進(jìn)一步的研究。本研究主要體現(xiàn)在以下幾個方面: (一)關(guān)于群體遺傳學(xué)的信息論模型研究,主要分為三部分內(nèi)容:一是群體平衡的shannon信息熵的性質(zhì)和群體平衡建立的熵變性質(zhì);二是群體遺傳多樣性測度的研究;三是非平衡群體的基因變異測量shannon信息量的方法研究。得到了如下結(jié)論: 1 、平衡群體的shannon信息熵最大,群體平衡的過程是熵的增大過程。