periodic model 中文意思是什麼
periodic model
解釋
周期模型-
Periodic solution for a microbial ecologic model
一個微生物生態模型的周期解 -
Our results include almost all nonautonomous single - specie harvesting models with periodic coefficients ; for example : logistic model, gompertz model. gilpin model. aynala model
其所得結果包括了許多常見的具周期系數的非自治收獲模型，如： logistic型， gompertz型， gilpin型， aynala型等。 -
For example, in reference [ 12 ], the author studies the stability of system equilibrium with the method of latent root and the periodic solution of the marchuk ' s model with the method which provided by reference [ 13 ]
例如，文[ 12 ]以時滯r為參數，利用特徵根法研究了該模型的平衡點的穩定性，利用文[ 13 ]的方法研究了該模型的周期解。 -
The paper makes a systematic study on frictional torque model for hydraulic system, after the analysis of the ultra ? low speed principle of closed - loop system, it can be concluded that the existence of the difference between static frictional and dynamic frictional torque, and the periodic saltation of the dynamic frictional torque, are the main reasons of the low speed stick - skip to the electrohydraulic position servo system
針對伺服馬達的低速性能，進行了低速實驗研究，併兼顧快速性能進行了階躍響應和正弦響應實驗研究，對實驗結果進行了分析，得出了一些有價值的結論，提出下一階段進行實驗的建議。 -
Almost periodic solution and periodic solution for an autocatalytic oscillatory model
一個自催化振動模型的概周期解與周期解 -
Compared with the behavior of macromolecules in real solution system, the adsorption information in the monte carlo simulation system, such as adsorption isotherm, surface coverage, and bound fraction, was studied for discussing its relation to simulation parameters. five - selection simple cubic lattice, self - avoiding walk, and nearest interaction model were used to construct the homopolymer adsorption model on the solid - liquid interface. periodic boundary conditions were used to reduce the fixed error from limited cubic lattice in size
模擬中採用五選擇簡單立方格子上的自迴避行走和最近鄰相互作用模型；使用周期性邊界條件以減小有限大格子空間帶來的系統誤差；用鏈節間相互作用能、界面吸附能、體相濃度和鏈長約束體系中的高分子的吸附行為；用末端轉動、 l -翻轉、曲柄運動、蛇形運動和r - r切除-生長法對模擬體系進行擾動；用系統達到吸附平衡后的樣本來研究模擬體系中的高分子鏈在固液界面上的吸附。 -
Besides the catechetical correspondence course offered by the central council of catholic laity including text model and web model, it is hoped that other institutions diocesan audio - visual center and diocesan laity formation office etc. can make use of information technology, to produce multi - media catechism revision courses, by means of self - learning cds and websites etc., emphasizing interaction and interest. such courses can even provide teachers who will hold periodic meetings as follow up for the learning process
除教友總會的再慕道課程文字及網上版外，有關機構教區視聽中心及教區教友培育辦事處等可利用資訊科技製作多媒體再慕道課程，透過自學光碟及相關網際網路，強調互動和趣味，甚至有導師定時跟進學習過程，詢問有關進度等，課程內容以生活和信仰整合為中心。 -
Based on this situation, in this paper, a more actual dynamic - chemical coupling model than two - state model, a periodic four - state kinetic hopping model, is established, and analyzed by the master equation method
基於這種情況，本文建立了一維周期性四態隨機躍遷模型，並利用主方程方法進行了研究。 -
In the third part, a more actual dynamic - chemical coupling model than two - state model, a dimensional v " j : ) t t periodic four - state kinetic hopping model, is established. the results are summarized as follows. 1
第三部分根據分子馬達實際的力學化學耦合過程，建立起比兩態模型更接近實際的模型?一維周期性四態隨機躍遷模型。 -
Then one can easily obtain the existence of periodic solution of the chemostat model
然後在一致持續生存的條件下得到了該系統周期解的存在性。 -
Finalh. the asymptotic behaviour of the chemostat model with two - nutrient and diffusion is further studied. the global attractivity of the periodic solution is proved under the unique existence of the periodic solution
然後進一步研究具有周期環境的雙營養擴散恆化器模型的漸近性態，在周期解存在唯一的條件下證明了該周期解的全局吸引性。 -
In the second section of chapter 2, the fact that the essential interest rates of all nodes differ from each other is discussed, a non - homogeneous differential equation model of interest rate - amount of circulating fund is established, and it is proved that the sum of the weighted interest rates of each node in the financial network still remains a constant and that the difference of the instant interest rates between two nodes will finally approach the difference between their basic interest rates. in the third section of chapter 2, the differential equation model of interest rate - amount of circulating fund in an open system is studied, the laws of changes of interest rate are taken into account when fund is injected into or withdrawn from the node or when fund is injected into the network or withdrawn from the network, and the stability of equilibrium solution is proved based upon lyapunov stability theory. in the last, the equation model of interest rate - amount of circulating fund in the financial network with time delay is studied, and a necessary and sufficient condition for the existence of periodic solution is obtained to the interest rate - amount of circulating fund equation with delay
本文第二章首先建立了封閉系統的利率?流通量微分方程模型，證明了各結點利率加權和為常數即金融市場利率均衡原理，以及各結點利率極限為整個網路平均利率；其次在各結點基本利率不相同的情況下，建立了非齊次利率?流通量微分方程模型，證明了金融網路各結點利率加權和仍是一個常數，並證明了各結點兩兩之間的即時利率之差最終將穩定地趨于其基本利率差；此外，還研究了開放金融網路利率?流通量方程模型，考慮了結點自身追加資金和提走資金的情形以及網路外部注入資金和向外部轉移資金情形下的利率變化規律，用lyapunov穩定性理論證明了模型均衡解的穩定性；最後，還研究了具有時滯的金融網路利率?流通量方程模型，並給出了具有時滯金融網路的利率流通量方程具有周期解的充要條件。 -
The measurement of the friction moment and motor torque wave verifies that the stribeck friction model is accurate and the wave is periodic
進行了摩擦力矩和電機波動力矩的實驗測試，實驗驗證了非線性摩擦模型的準確可靠性，電機力矩波動的周期性。 -
This analysis framework is proposed based on adequate comparison of existing multi - model information fusion methods and the discovery of periodic characteristic of racquet sports video. it is a general sports video content analysis method based on audio / visual middle level features, domain rules, context, and highlights ranking. its advantages include simplicity, intuitiveness, generality, context - sensitive and affectivity
該分析框架是在充分分析現有的多模態信息融合方法並結合球拍運動周期性特點后提出的，是一個基於音視頻中層特徵、領域規則、採用時序分析方法形成精綵排序的通用體育視頻內容分析方法，兼具了復雜度低、直觀性強、通用性好、上下文相關和有感知性這五項優點。 -
Based on vibration principle, the paper establishes dynamics analysis model of output shaft with elastic support, according to fourer series spread principle of periodic function, the dynamic response formula is derived by separating complex vibration force into sum of many simple harmonic excitation function of whole number times frequency relations. the result shows that response of both sides support is synchronous when load distribution non - uniform coefficient is 1
依據振動理論建立了具有彈性支撐的輸出軸的動力學分析模型，根據周期函數的傅里葉級數展開原理，將復雜的激振力分解成為多個頻率成整倍數關系的簡諧激勵函數，導出了動態響應表達式，結果表明，當載荷分配不均勻系數為1 . 0時的輸出軸兩端支撐同步。 -
We consider a nonlinear differential equation periodic boundary value problems of second order which has proposed as a model for the periodic motion of a satellite in its elliptic orbit
摘要本文考慮作為衛星繞橢圓軌道做周期運動模型的一個非線性微分方程的周期邊值問題。 -
In chapter 3, the subgrid eddy - viscosity model for large eddy simulation is applied to calculate the three dimensions unsteady periodic turbulent flow in yantan francis turbine. the pulsating characteristics of some main physical parameters in flow field are found. the calculated axial water thrust of hydraulic turbine agrees with the model - test value
第三章採用大渦模擬亞格子渦粘模型，對巖灘混流式水輪機的流場進行三維非定常湍流分析，得到了流場中各物理量的脈動特性，計算出ms的軸向水推力與模型試驗值大小相當；同時論證了對于下機架承重的混流式水輪發電機組可採用其推力軸承負荷作為水電站廠房振動的最大垂直激振荷載。 -
And the subroutine is developed to add the periodic condition in the commercial 3d fem software. 3d electromagnetic field analysis is done to analyze the magnetic flux distribution in the tfpm. base on the field analysis, the mathematical model is given
採用簡化的三維電磁場計算方法對橫向磁通永磁電機內部磁通分佈進行了研究，計算了各部分的磁通密度分佈和漏磁通的走向，得到了電機的空載漏磁系數及空載反電動勢以及主要的漏磁通分量。 -
As the 3d electromagnetic field calculation region of the tfpm is not suitable for the periodic condition, the calculation must be done for the whole region. it takes too much time. firstly, a method is adopted to simplify the 3d model with periodic condition
本文的工作主要包括以下幾部分內容:首先對本文研究的橫向磁通電機的三維電磁場分析模型進行了簡化，提出了對不符合周期條件的求解區域在工程設計允許的范圍內進行簡化處理的方法，同時對商業軟體進行了二次開發，編制了周期條件處理程序，減少了三維電磁場計算時間。 -
Positive periodic solutions of a delayed model in population
一類時滯種群模型的周期正解
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