種群動力學 的英文怎麼說
中文拼音 [zhǒngqúndònglìxué]
種群動力學
英文
population dynamic-
Form. taxus chinensis var. mairei is protecting plant in the first class, which is a precious and endangering plant in china in this paper, the quantitative characterics of form. taxus chinensis vsr. mairei population including age structure, spatial distribution pattern, growth dynamics of tree basal area, niche characterics, fractal dimension and competition between specises were studied using methods of mathematics ecology from the angle of population ecology of form. taxus chinensis var. mairei, then the prent state and the endangering causes were analysed. this research offers gist to protecting and enlarging the crude resourse of form. taxus chinensis vsr. mairei population, afforesting plantation and sustainable utilize for us
本文從南方紅豆杉種群生態學的角度、主要應用數學生態學的方法探討南方紅豆杉種群的數量特徵，包括南方紅豆杉種群年齡結構、種群空間格局（探討分佈格局動態規律與生境相互關系） 、不同立地條件下種群優勢度增長趨勢、生態位寬度、生態位相似比例、生態位重疊、空間占據能力及種間競爭等，分析其目前現狀及瀕危原因，期望為南方紅豆杉野生資源的保護和擴大、營造人工林及可持續利用提供理論基礎，也為瀕危植物種群生態學的研究提供參考。Dynamical systems examples from mathematical biology and population dynamics
來自生物數學和種群動力學的動力系統的例子。In education, the author explains that the educational innovation served as premise and security for the development of physics via in - depth analysis on the college education and educational system of physics in germany ; ln philosophy, to avoid the superficial and rigid opinions that philosophy either guides or hinders physics, which is resulted from one - way analysis on the influence of physical knowledge by specific philosophical knowledge, based on the combination of physical achievements by philosophy and profound philosophical knowledge, the author illustrates that the influence on german physics by philosophy reflects more on a kind of spirit a nd this very spirit brings the new quality into the german physics ; in mathematics, by means of analyzing integration of mathematics and physics at different stages, the author is tended to testify that the blooming mathematics in germany is the indispensable condition for the prosperity of german physics because. 2 mathematics provides language tools for the development of physics ; ln culture, by way of analyzing the common features of german physicists and connecting the brilliant german culture, the author audaciously brings forward that the wissenschaft ideas and faust ideas is the important driving force for the prosperity of the development of german physics
在教育方面，通過對德國大學和物理教育體制的形成的分析，說明教育改革是物理學發展的先導和保證；在哲學方面，作者避免了從具體哲學知識對物理知識影響的單一方式出發而得出「要麼指導要麼阻礙」的兩種簡單僵化觀點的弊端，將哲學對物理學成就的影響和德國物理學家群體很高的哲學素養結合起來分析，說明哲學對德國物理學的作用更多的是體現在一種氣質、精神上，正是這種氣質和精神為德國物理學的發展注入了一種新的特質；在數學方面，通過對不同時期數學和物理學融合程度的分析，證明了發達的數學是德國物理學繁榮和領先的必不可少的條件，它為物理學的發展提供了語言工具；文化方面，通過對物理學家群體特點的分析聯系燦爛的德國文化，作者大膽提出其中蘊涵的wissenschaft思想和浮士德精神是德國物理學繁榮和領先的重要動力。In the light of the recent work in biological models, especially in the chemostat models, the dissertation provides a systematic study on the asymptotical behaviour of some chemostat models built by delay or diffusion differential equations. the main contents and results in this dissertation are as follows : i ) the global asymptotic behavior of the chemostat model with the beddington - deangelies functional responses and time delays is studied. the conditions for the uniform persistence of the competing populations are obtained via uniform persistence of infinite dimensional systems
本論文基於當前生物學模型，特別是恆化器模型的研究現狀，深入系統的研究了時滯和擴散方程描述的幾類恆化器系統的漸近性態，本文的主要內容包括以下幾個方面：一、研究了具有beddington - deangelies功能性反應函數的時滯恆化器模型，利用無窮維連續動力系統的一致持續生存的理論給出了兩競爭種群一致持續生存的充分條件，利用單調動力學系統得到了系統的全局漸近穩定性。According to the environment features inside and outside caves in guizhou and current development of cave creature study home and abroad, making use of karstology, environment science, ecology, zoology and the theory of human - land relation, and through combining microscale with macroscale, component with system, field investigation with interview, and theory with experiment, the author chooses guiyang, anshun, pingba and honglin, where human activities are frequent and strong, to make a macroscopical investigation on animals and environment, and selects some typical caves in honglin to make a comparison study on environment features inside and outside the caves, biodiversity and present situation of plant society, and adaptability of cave animals to environment, and analyzes theoretically the effects of human activities on the cave animals and evaluates objectively the development potential of cave animal resource
根據貴州喀斯特洞內外環境和國內外洞穴動物研究現狀，運用喀斯特學、環境學、生態學、動物學以及人地關系等相關理論，採取點面結合，特殊與一般結合，系統與要素結合，實查與訪問結合，理論與實驗結合的方法，選擇貴陽、安順、平壩、紅林等人類活動強度大的區域進行面上動物和環境的調查，選擇紅林地區代表性的洞穴對洞內外環境、物種多樣性及群落現狀、動物對環境的適應等進行對比研究，理論分析人類活動對洞穴動物的影響和客觀評判人類活動的洞穴動物效應與動物開發潛力。Egg in diapause or not : logit ( p ) = - 41. 832 + 1. 422x1 ( sea - water temperature ) + 0. 509x2 ( photoperiod ) ; female laying diapause eggs or not : logit ( p ) = - 89. 001 + 6. 611x ( photoperiod ) the former reflected the effect of environmental conditions on the amount of diapause eggs of this species in xiamen waters, and it is important to study the population dynamics of this species in this area ; while the latter reflected the effect of envi ronmental conditions on inducing the female of this species to lay diapause eggs, and it is important to research the diapause inducers of this species in this area and the physiological mechanism of diapause
卵是否滯育： logit （ p ） = - 41 . 832 + 1 . 422x _ 1 （海水溫度） + 0 . 509x _ 2 （日照時間） ；雌體是否產滯育卵： logit （ p ） = - 89 . 001 + 6 . 611x （日照時間） 。前者反映的是海區環境對整個廈門海區該種類滯育卵多寡的影響，對于研究本海區該種類的種群動力學有著重要意義；後者反映的是海區環境對該種類雌體產滯育卵的誘導作用，對于研究誘導該種類在本海區滯育的環境因子和生理機制具有重要意義。Genetic control is critical for maintaining variability and avoidance of inbreeding, ensuring the long - term viability of captive nonhuman primate colonies
對非人靈長類動物種群實行遺傳學控制，對于維持種群的遺傳多樣性，提高動物長期的生存力和繁殖率，滿足醫學生物學實驗需要具有現實意義。There exists technology need difference among all types of farmers which embody on the farmers " selection of diseases resisting and anti - adversity. there is a big cognition and behavior gap between government, agriculture researchers and extensionists. on the basis of the above research findings, this thesis puts forward the following policy recommendations : reinforce invest into the drought research is the optimizing selection in agriculture research invest reinforce the technological research which is suit to the women labor deepen the agricultural technological extension reform, reinforcing invest into the agricultural technological extension found a down to up agricultural technology system deepen the maize research system reform
浙江大學碩卜學位論文利用參與式農村評估方法研究農戶的玉米生產行為根據我們的研究結果，本文提出以下幾條政策建議，一是增加抗旱方面的研究投資已成為我國政府農業科研投資的最優先選擇，重視西南地區農民對高產群體改良品種（ opv ）的需求，增加對opv品種選育和推廣工作上的科研投資;二是加強適合婦女勞動力的技術研究;三是建議政府深化現行的技術推廣體制改革，增加農業技術推廣投資，加強農業技術推廣活動;四是建立一個由下到上的農業科技體制;五是深化玉米科技體制改革Under this mechanism, driven by s ome endogenous motivation factors and suitable exogenous motivation arrangement, the high - level - capability enterprises are expected to conduct external - to - cluster learning activities in the interregional network so as to introduce high - value knowledge flow into the cluster where they are located, and the low - level - capability enterprises, however, are expected to utilize local network to learn from the knowledge diffusion from their high - level - capability neighbors
該機制的基本思想是藉助內生的動力因素和合理的外部激勵設計，來引導集群高位勢企業面向跨區域網路開展外向型技術學習以引進高價值知識流，而低位勢企業則藉助當地網路平臺從前者的知識擴散中進行跟進式學習，表現在知識的空間運動形態上，是一種「知識引進? ?知識擴散」模式。Review on population, population ecology and population behavior
模型和種群動力學In the study of the population dynamics, the population ' s persistence is a very interesting and important problem
在種群動力學的研究過程中，種群的持續生存問題一直倍受關注。Asymptotic behavior of three differential systems tang hong - ji abstract : the system ' s asymptotic behavior is the solutions " behavior at / - > - i - xxlt iiicluds the stability of the solutions, the attractivity of the solutions, the oscillation of the solutions. the purpose of this paper is to investigate the asymptotic behavior of throe differential systems
這些性質揭示了動力系統的長期行為，因而在生態學，經濟學，神經網路等眾多領域有著廣泛的應用本文研究了三類微分系統解的漸近性質。在種群動力學的研究中，種群的持續生存是最基本，最有趣的課題之一。The characteristics of quantum computing and the mechanism of immune evolution are analyzed and discussed. inspired by the mechanism in which immune cell can gradually accomplish affinity maturation during the self - evolution process, a immune evolutionary algorithm based on quantum computing ( mqea ) is proposed. the algorithm can find out optimal solution by the mechanism in which antibody can be clone selected, memory cells can be produced, similar antibodies can be suppressed and immune cell can be expressed as quantum bit ( q - bit ). it not only can maintain quite nicely the population diversity than the classical evolutionary algorithm, but also can help to accelerate the convergence speed and converge to the global optimal solution rapidly. the convergence of the mqea is proved and its superiority is shown by some simulation experiments in this paper
分析和探討了量子計算的特點及免疫進化機制，並結合免疫系統的動力學模型和免疫細胞在自我進化中的親和度成熟機理，提出了一種基於量子計算的免疫進化演算法.該演算法使用量子比特表達染色體，通過免疫克隆、記憶細胞產生和抗體相似性抑制等進化機制可最終找出最優解，它比傳統的量子進化演算法具有更好的種群多樣性、更快的收斂速度和全局尋優能力.在此不僅從理論上證明了該演算法的收斂，而且通過模擬實驗表明了該演算法的優越性Abstract : the characteristics of quantum computing and the mechanism of immune evolution are analyzed and discussed. inspired by the mechanism in which immune cell can gradually accomplish affinity maturation during the self - evolution process, a immune evolutionary algorithm based on quantum computing ( mqea ) is proposed. the algorithm can find out optimal solution by the mechanism in which antibody can be clone selected, memory cells can be produced, similar antibodies can be suppressed and immune cell can be expressed as quantum bit ( q - bit ). it not only can maintain quite nicely the population diversity than the classical evolutionary algorithm, but also can help to accelerate the convergence speed and converge to the global optimal solution rapidly. the convergence of the mqea is proved and its superiority is shown by some simulation experiments in this paper
文摘:分析和探討了量子計算的特點及免疫進化機制，並結合免疫系統的動力學模型和免疫細胞在自我進化中的親和度成熟機理，提出了一種基於量子計算的免疫進化演算法.該演算法使用量子比特表達染色體，通過免疫克隆、記憶細胞產生和抗體相似性抑制等進化機制可最終找出最優解，它比傳統的量子進化演算法具有更好的種群多樣性、更快的收斂速度和全局尋優能力.在此不僅從理論上證明了該演算法的收斂，而且通過模擬實驗表明了該演算法的優越性Evolutionary dynamic model of population with niche construction and its application research
具有生態位構建作用的種群進化動力學模型及其應用研究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。The unstable gas stream is characterized by oscillations with transient velocities of about + 100 m / s and frequencies from 50 - 200h /. the enhanced mixing and transport processes lead to a highly efficient moisture evaporation rate during pulsating spray drying. the computational fluid dynamics ( cfd ) method was used for the analysis and investigation of flow, temperature and humidity fields in a pulsating flow spray - drying chamber
長期以來，對噴霧乾燥過程進行了各種試驗和模擬研究，但這些研究並不能揭示噴霧乾燥室內氣體運動狀態，顆粒群的運動軌跡和各種熱力學參數分佈信息，常規的測試手段又很難測得，而這些參數分佈信息對乾燥器沒計和過程優化具有重要指導作用。So there are both continuous and discrete in the progress ( id fact, we always meet such a progress with both continuous and discrete variation during studying the biological model ). then we can model the progress by a dynamic equation on tune scales to solve it easily. since the last decade, there have been much advance on the dynamic equations on time scales
那麼這個過程既有連續的又有離散的（事實上，在描述生物種群狀態的生物模型中我們經常會遇到象這樣的一個變化過程中同時具有連續的和離散的變化） ，我們就可以用一個時間模上的動力學方程來描述，進而用時間模上的運算對此加以解決，那麼問題處理起來就簡單方便了。In order to understand the nature of the ecologist ' s investigation ， we may think of the density - dependent effects on growth parameters as the “ signal ” ecologists are trying to isolate andinterpret ， one that tends to make the population increase from relatively low values or decrease from relatively high ones ， while the density - independent effects act to produce “ noise ” in the population dynamics
為了能理解生態學家們所從事的研究的性質，我們可以把那些作用於增長參數的密度依賴效應視作生態學家們力圖將其分離並予以解釋的「信號」 ，正是這一信號傾向于使種群從相對較低的數值遞增，或從相對較高的數值遞減；而與此同時，那些密度獨立效應起到的作用則構成了種群動態變化中的「噪音」 。Thus with citing these results we separatedly and thoroughly examined all possible dynamical manners of the changing of the ; populations when the species were developing under the function of catching efforts in three different areas departed by the size relation between the intrisic rates of the system and the values of the harvesting efforts. so we could give out - righter qualitative analysis to this system and the scope of catching efforts which make the species sustainable and the asymptotical properties of the corresponding system were also clear
於是，本文在引用已有結論的基礎上，根據給定捕獲努力量與系統內稟增長率之間的大小關系分三部分考慮了在不同的捕獲努力量作用之下，種群發展過程中其個體數量變化可能出現的全部動力學行為，從而對系統給予了較完整全面的定性分析，求出了使生態系統持續發展的捕獲努力量的范圍及相應的系統的漸近性質分享友人