population growth model 中文意思是什麼

population growth model 解釋
群體生長模型
  • population : n. 1. 人口；人口總數；全體居民；人口的聚居。2. 物的全體[總數]；【生物學】蟲口；種群（量）；群體；族，組，個數；【統計學】對象總體，全域。3. 【物理學】布居；密度。4. 〈罕用語〉殖民。
  • growth : n. 1. 生長，成長，發育，發展。2. 栽培，培養。3. 生長物，產物；【醫學】瘤，贅生物。4. 【經濟學】（資本價值與收益的）預期增長。
  • model : n 1 模型，雛型；原型；設計圖；模範；（畫家、雕刻家的）模特兒；樣板。2 典型，模範。3 （女服裝店僱...
  1. The growth dynamics of tree basal area of form. taxus chinensis var. mairei population in different altitude were discussed using the liu - logistic model, and the results showed that the altutide of 790 meters is more suitable to the survive of form. toms chinensis var. mairei population than 990 meters. plot sampling was selected and dynamic analysis was used to study the height structure of taxus chinensis var. mairei population, and the quadrate picture of height structure and the curve of survival rate were drew

    運用改進模型對南方紅豆杉種群在不同海拔梯度的種群優勢度增長進行了探討，表明海拔790m處的南方紅豆杉具有較大的環境容納量，但增長速度不快，海拔990m處的南方紅豆杉種群環境容納量不高，但具有較大的增長速度，這可能與群落的發育階段不同有關，兩地海拔均為南方紅豆杉適宜的生長海拔高度，相比而言，海拔790m的珍稀瀕危植物南方紅豆杉種群數量特徵的研究高度更宜於南方紅豆杉種群的生長。
  2. Taxus chinensis vsr. mairei population is very oblivious from seeding stage to mature tree stage. the patterns were consistant with the ecological and biological characteristics of form. taxus chinensis var. mairei which were valuable and rare and in severe danger. in this paper, logistic model and liu - logistic model were proposed to approach the growth dynamics of tree basal area of form. taxus chinensis var. mairei population

    南方紅豆杉幼苗表現為較強的聚集分佈，除與種子的散布有關外，生境條件的差異是重要原因之? ，其它發育階段表現為明顯的隨機分佈，表明它在自然群落中分佈的概率很小，反映了南方紅豆杉珍稀瀕危的生態生物學特性和特徵。
  3. The method of modified simplex was applied to optimize the models, and the fitting results show that liu - logistic model was more suitable than logistic model to the actual growth trend of form. taxus chinensis var. mairei population, and the highest growth rate of basal area was the tenth age class, namely the phase when breast diameter was 68 ~ 76 cm

    以胸高斷面積代替種群生物量，分別採用logistic常規模型及劉金福提出的logistic改進模型對南方紅豆杉種群的增長動態進行研究，運用改進單純形法對模型進行優化，擬合結果表明改進模型比logistic常規模型更符合南方紅豆杉種群的增長趨勢，南方紅豆杉種群的最大增長速度出現在第10齡級，即胸徑為68 76cm時期。
  4. Logistic model is one of core theory in population ecology. it almost the only model to describle population growth for about one hundred

    Logistic模型是種群生態學的核心理論之一。 100多年來，它幾乎是描述種群s型增長的唯一數學模型。
  5. Although economic and population specialists and scholars both in abroad and at home have made extreme progress on research the question of rural labor since they studied it very long ago, as far as china is concerned, based on the following three aspects, firstly, the national condition of our country determined that the foreign theory such as lewis theory might instruct us but we ca n ' t use these theories without rectification ; secondly, in china, our research about this question prefer the qualitative analysis to the quantitative analysis ; thirdly, the research on the labor utilization and shift in this specific area, that is, in the mountainous rural area which covers 69 % of our mainland and occupies 56 % of population is absolutely scarce in present ? to make up for the three deficiencies, this paper selects the econometrics analysis, uses investigation data and by virtue of tsp software, establishes a model where shift labor is the dependent variable and the citilization ratio, industrial structure, the income gap between city and country, the rural infrastructure construction, the labor ' s aptitude and the population ' s natural growth ratio are the variableso through economic, statistical and econometrical test, the conclusion is attained : the income gap between city and country and the citilization ratio are the two most important fectors which affect the labor ' s utilization and shift in mountainous rural area -, the rural infrastructure construction and the labor ' s aptitude are the two relative important factors which affect the labor ' s utilization and shift in mountainous rural area while the rural industrial structure and the population ' s natural growth ratio are the two least important factors according to this, this paper puts forward several suggestions that the income gap between city and country, citilization ratio, rural education, rural industrial structure and agricultural mechanization should be carefully treated with on studying the question of labor utilization and shift in mountainous rural area. finally, this paper points to several suspending problems about this research in order to get the concern of specialist and scholars

    盡管國內外經濟和人口學方面的專家與學者很早就開始了對農村勞動力問題的研究並取得了極大的進展，但是，我國在研究農村勞動力問題時，基於三點：其一，我國國情決定了國外的理論例如劉易斯理論，雖然對研究我國的農村勞動力問題具有指導意義，但卻不能照搬這些理論；其二，從國內看，我國對該問題的研究重視定性分析而定量分析明顯不足；其三，缺乏對我國占國土面積69 、人口56的山區農村這一特殊區域內的勞動力開發利用及轉移的專門性研究。為了彌補這三個缺憾，論文採用經濟計量學的數量分析方法，利用實際調查資料，藉助tsp軟體，建立了以外出勞動力數量為被解釋變量，城市化率、農村產業結構、城鄉收入差距、農村社會基礎設施建設、農村勞動力素質以及人口自然增長率六個變量為解釋變量的模型，通過對該模型進行經濟學、統計學、經濟計量學三個方面的檢驗，得出如下結果：城鄉收入差距和城市化率是影響山區農村勞動力開發利用及轉移的最重要的兩個因素；農村社會基礎設施建設和農村勞動力素質是較為重要的兩個影響因素；而農村產業結構和人口自然增長率相對來說是較不顯著的影響因素。據此，本文提出了在研究山區農村勞動力開發利用及轉移問題時，應慎重對待城鄉收入差距、城市化水平、農村勞動力素質、農村產業結構、農業機械化五個問題。
  6. The model was reliable and accurate, it can be used to forecast of diameter growth and can amplify and develop the methods of population ' s development and prediction

    經檢驗，該模型預測胸徑的生長量具有較好的可靠性和精度高等優點，從而豐富和發展了種群增長模擬與預測預報的方法。
  7. The evidence indicates that this model describes the economic growth in china very well, if holding population growth, capital accumulation and institutional change factor constant, chinese provinces converge at about the rate that the augmented solow model predicts

    實證研究結果表明該模型很好地描述了各省市的經濟增長情況，如果控制了人口增長率、資本積累率以及制度因素的差異，中國地區間經濟增長會出現如索羅模型所預測的條件收斂現象。
  8. By building up tumor growth aerodynamic model, when tumor growth aerodynamic laws is research to find : the process of tunor increasing squares with economic growth of gompertz growth parabola description ; we further study that gompertz growth parabola squares with population growth and regulation of logistic growth parabola description

    摘要通過建立腫瘤增長動力學模型，研究腫瘤增長動態規律時發現：腫瘤增長的全過程與龔珀茲增長曲線描述的經濟增長過程完全相符；進一步給出了龔珀茲增長曲線與描述種群的增長與調節的邏輯斯蒂增長曲線完全相似。
  9. Statistic model of biological population growth

    生物種群的一類統計模型
  10. The temporal and spatial dynamics of a single species metapopulation is modelled by a model. the stability of spatial distribution of the population and relationships between the stable patchy distribution and migration rates and finite rate of growth of subpopulations are also investigated. finally measures to boost the growth of total population are presented through the model and analysis of the model

    通過模型模擬了呈一般綴塊分佈的單種種群的時空動態.討論了種群空間分佈的穩定性及穩定綴塊分佈與種群在綴塊間遷移率和子種群增長率之間的關系，並由此提出了促進全局種群增長的措施
  11. Oscillation of positive solutions of a single population growth model

    一類單種群增長模型正解的振動性
  12. Lastly, this paper compares the existing division of administrative zones based on the population growth model, and analyzes the most suitable division of administrative zones for the existing population growth

    最後，就各鄉鎮人口成長模式，比對現行區域劃分，觀察哪一種區域劃分較符合人口成長的現況。
  13. Concerning the population growth model, the types of population movement in 21 villages and township in taichung county are " exceeding the expectation " and " not exceeding the expectation "

    其次，在鄉鎮人口成長模式方面，本文指出戰后臺中縣21鄉鎮人口變動類型基本上可分為已達預期增長與未達預期增長兩大類型。
  14. In making patronage forecasts for new railway lines, the kowloon - canton railway corporation ( kcrc ) makes use of a computer transport simulation model, which is based on the government s published assumptions on economic growth, population growth and distribution, housing development, employment opportunities, bus route development etc

    九廣鐵路公司（九鐵）採用一個運輸電腦模擬系統，按照政府就經濟發展，人口增長和分佈情況，房屋發展，衍生的就業機會及巴士路線發展等公布的數據而預測新鐵路的乘客量。
  15. A variable of the rate of population aging has been introduced at first and then link with production function and the solow growth model

    本文通過引入老齡化率變量，並將老齡化率變量引入到生產函數和索洛模型中，由此展開老齡化作用效應的相關定量分析。
  16. This model shows you the effect of time lag on the population growth

    本模型為你展示了人口增長帶來的滯後效應。
  17. Based on the detailed analysis of the existing power system in ali area and its geological conditions, as per the population and economic growth history and future development targets in this area, in this paper, a prediction of power consumption volume and power load needed in ali area in next 15 years made by using index growth model and artificial neural network

    本文在詳細分析阿里地區電力系統現狀及所處自然地理條件的基礎之上，根據阿里地區人口、經濟增長歷史及未來發展目標，採用指數增長模型和人工神經網路模型對阿里地區未來15年內用電量及用電負荷作了預測。
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