scaling of model 中文意思是什麼
scaling of model
解釋
模型縮放-
8 newman m e j. models of the small world. journal of statistical physics, 2000, 101 : 819 - 841. 9 newman m e j, watts d j. scaling and percolation in the small - world network model
由於martel和nguyen已經證明了kleinberg的small world理論模型的直徑為o lg n ，本文的路由時間已經達到了最優復雜度。 -
The use of the state - of - the - art laser facility makes it possible to create conditions of the same or similar to those in the astrophysical processes. the introduction of the astrophysics - relevant ideas in laser - plasma experiments is propitio us to the understanding of the astrophysical phenomena. however, the great difference between the laser - produced plasmas and the astrophysical processes makes it awkward to model the latter by laser - plasma experiments. this paper addresses the physical backgrounds for modeling the astrophysical plasmas by laser plasmas, connecting these two kinds of plasmas by scaling laws. thus, allowing the creation of experimental test beds where observations and models can be quantitatively compared with laser - plasma data. special attentions are paid on the possibilities of using home - made laser facilities to model astrophysical phenomena
採用當前最先進的激光裝置與物質相互作用，可以獲得與天體物理過程中相同或相似的條件，並進而開展利用激光等離子體模擬天體物理現象的實驗.然而，激光等離子體為微米空間尺度、納秒存活時間，而天體物理對象則為宇宙學的極大的時間與空間尺度，對在物理上和實際操作上將這兩種表面上存在巨大差異的物理過程對應起來從而利用激光等離子體研究天體物理過程的可能性進行了討論，特別是對利用國內的激光裝置開展模擬實驗的可行性進行了討論 -
A chirp scaling algorithm for airborne bistatic sar is proposed, which is suitable for the flight configuration that transmitter and receiver follow parallel path with equal velocity in broadside looking mode. airborne bistatic sar echoed signal model of this particular flightpaths is derived. the model is converted into the range doppler space and is mapped from double range variables to single range variable domain
本文建立了這種特殊飛行模式下雙基地sar的回波信號模型，推導了它在距離多普勒域的表達式，解決了信號模型從雙距離變量域向單距離變量域轉化的問題，並推導了cs因子的線性近似表達式，分析了演算法中各種近似造成的誤差。 -
We analyzed the dependence of equivalent circuit parameters of mesfet switch on material and device structure. for modeling, we designed and fabricated six set of mesfet switches with different gate width, then measured their performance and extracted switch model parameters. mesfet switch database corresponding to the mmic product line is then established, and using the dependence of switch model parameters on gate peripheral we can attain the mesfet switch performance with any gate width through parameters scaling
移相器電路採用gaasmesfet開關作為控制元件，研究了mesfet開關等效電路參數與材料和器件結構參數的關系，設計製作了不同柵寬的六組mesfet開關，並進行參數測試和模型參數提取，建立了相應于mmic工藝線的mesfet開關模型庫；根據開關模型參數隨柵寬的變化規律，可以實現任意柵寬mesfet開關的參數定標工作。 -
And a scaling lognormal model of flood volume is introduced to represent the affection of temporal scale of duration in annual maximum flood volume distributions
並提出了洪水洪量的對數正態分佈模型來表徵年最大洪量分佈中歷時的尺度影響。 -
Fractal scaling of soil cumulative mass particle - size distribution is more easy to be use to get particle - size distributions fractal dimension ( dp ), this model give the dimension a strictly range : 0 < 3. it response to filled - ability of soil particles. the texture is heavier, the dp is too high. 2
以土壤累計質量分佈的粒徑分形特徵為基礎，將顆粒數量表示的粒徑分佈分形維數化解為以顆粒質量確定的粒徑分佈分形維數，可以更為方便地確定出粒徑分佈分形維數。 -
In this paper, fuzzy pid controller based on t - s model has been studied. due to lacks of criterion of optimization and excessive tuning parameters, the adaptive genetic algorithm with variable cross and mutation probability is used to optimize the parameters and the performance of control systems is improved. firstly, based on modified pid - flc with four fuzzy rules, scaling factor and the fuzzy consequent parameters are optimized by aga with multiple performance indexes respectively
本文主要研究基於t - s模糊模型構成推理形式的模糊pid控制器，針對以往的模糊pid控制沒有統一的參數整定的準則及大量的待整定參數，本文採用具有動態交叉、變異概率的自適應遺傳演算法（ aga ）優化控制器的待定參數，改善了系統的控制性能。 -
And a scaling lognomial model of rainfall intensity is introduced to represent the affection of temporal scale of duration in annual maximum rainfall intensity distributions
另外，本文提出了暴雨強度的對數正態分佈模型來表徵年最大暴雨強度分佈中歷時的尺度影響。 -
In order to analytically deduce the characteristic scaling law, we have constructed a simplified piecewise linear model that describes the characteristic phenomenon so that we can quantitatively and analytically deduce the sudden change of the rules of the fractal dimension of the strange repeller and the averaged lifetime in the region occupied by the original attractor at a critical parameter value when the repeller disappears
為了解析地導出這種激變的特徵標度律，我們構造了一個描述這種特徵現象的簡化分段線性模型，並藉助它定量地解析描繪了當奇異排斥子在臨界參數值消失時，奇異排斥子的分數維和在原混沌吸引子區域迭代的平均生存時間的突變。 -
Using the conic function model local approximation, w. cdavidon ( 1980 ) proposed a class of iterative algorithms with modified matrix combining function value, furthermore under the theory d. c. sorensen has used local quadratic approximation method, then applying collinear scaling idea improving on the above algorithm and generalizing it, getting a class of collinear scaling algorithm, unifying former quasi - newton. in the paper, using local quadratic approximation method, the first, constructing the new collinear scaling gene, getting a class of the new collinear scaling algorithm with briefness and numerical stability, ., we discusses some properties of the algorithm and its local linear convergence, q - superlinear convergence and the whole convergence ; secondly we have made numerical experimentation and numerical analysis ; the last, we have done much discussion for collinear scaling idea and given the several new collinear scaling algorithm
本文的工作就是基於局部二次逼近原理，首先通過構造新的共線調比因子，得到了一類新的更簡潔，數值穩定性更好的共線調比演算法，進而我們給出了本共線調比演算法的局部收斂性，全局收斂性以及演算法q -超線性速度的理論證明；其次，用經典的無約束優化五大考核函數就本共線調比演算法進行了數值試驗和數值分析；最後，就局部二次逼近思想，進行共線調比演算法思想進行更廣泛的討論，給出了幾個新共線調比演算法。 -
So a new method ? scale analysis method ( or called fractal analysis method ) is applied to study the flood of jialing river basin. the scaling hypotheses is applied to the relationship of annual maximum flood and drainage area. and basing on the scaling lognormal model with two parameters introduced by smith, a lognormal model with three parameters of flood is introduced to represent the scale effect of drainage area in annual flood peak distributions
在洪水區域分析中一般採用洪水指標法，但該法的基本假定與實際情況存在矛盾，因此本文採用一種新的分析方法? ?標度分析法（或稱為分形分析法）來研究洪峰的區域變化，將標度不變性引入年最大洪峰流量? ?匯流面積關系中，並將其用於嘉陵江流域的洪水，另外，本文在smith提出的具有標度性質的二參數對數正態分佈模型基礎上創造性地提出了三參數對數正態分佈模型來表徵年最大洪峰流量分佈中匯流面積的尺度影響。 -
In this thesis, we assumes the mont carlo method to simulate the antielectric materials based on the ising model and achieves expected results of scaling behavior between the area of the double loop and the frequency of imposed fields
本文首先使用蒙特卡羅方法研究了反鐵電的標度行為，得到了面積與頻率及振幅的標度關系，在低頻區，面積與頻率呈嚴格的2 / 3次方指數律。 -
On the other hand, an experimental small - scale model, which is 1 : 8 - scaling model of the polyu / ustc atrium, was established. the effects of some factors on the smoke layer interface of the smoke exhaust system in atria are studied by using the orthogonal experiments
論文以香港理工大學和中國科技大學合建的大空間火災實驗廳為原型，按1 ： 8的相似比例，搭建了中庭火災相似模型實驗臺，採用兩水平正交實驗研究了影響機械排煙系統煙氣層高度的幾個因素。 -
The braess paradox model is taken as an example to reveal the essence of entropy - maximization and utility - maximization which lies in the unity of the most efficient for the whole and the fairest for local parts and individuals. the internal symmetry of the scaling laws are bring to light based on the dual model of entropy - and utility - maximization. the internal symmetry including translational symmetry, dilation symmetry, and bilateral symmetry originate from relative energy - conservation and information conservation of urban systems reflected by the dual models, and parity conservation of scaling laws
揭示標度律及其等價模型各種對稱性質，發現城市系統具有平移對稱、鏡像對稱和標度對稱等內部對稱性，這些對稱性都對應著城市系統的不可觀測量，其本質在於系統內部隱含的守恆律，包括標度變換的奇偶守恆、能量和信息的相對守恆等。 -
A new method to determine fractal non - scaling interval of map objects automatically based on inverse s ' mathematical model
數學模型自動確定地圖目標分形無標度區的新方法 -
Realization of multi - dimensional scaling algorithm and application of water allocation model
多維尺度模型演算法實現及其配水模型應用 -
Secondly, the dynamic features, surplus torque and loading gradient features of ptss are analyzed by the couple model between the rudder and the eals. it can be concluded that the surplus torque is related directly to the velocity of the rudder, and the loading gradient is the disturbing inverse ratio from the surplus torque to the closed - loop model, which shows the scaling relationship between the input and the disturbance signal act on the eals. it also can be concluded that, under the same dynamic specification, it is more difficult to realize the small loading gradient
然後，採取把系統模型轉化為舵機和負載模擬器相互耦合作用的形式，對被動式力矩伺服系統動態特性、多餘力矩和加載梯度一一進行理論分析，得出:多餘力矩與舵機運動速度直接相關;加載梯度是在系統閉環模型中，與多餘力矩相關部分模型幅值大小成反比的系數，體現了被動式力矩伺服系統的指令信號和擾動信號之間的比值關系，從而在相同的動態指標下，小加載梯度實現更為困難。 -
6. the improvement of science and technology is essential to water conservancy modernization. aiming at the direction and emphasis of water conservancy technology a model with science and technology improving speed and its weight as scaling indexes is defined
水利現代化的實質是科學技術的進步，本研究針對江蘇水利現狀，提出了水利科技發展的重點及方向，建立了以科技進步速度、科技進步貢獻率為衡量指標的數學模型。 -
This paper first introduces the aspects of network performance research based on traffic measurement, modeling and analysis and its state - of - the - art, secondly summarizes then the concept, models and analysis tools of self - similar traffic, and analyzes scaling behavior of packet loss with self - similar traffic input by wavelets method, thirdly introduces hidden markov model and its applications on network performance research, and then explores the cross - traffic inferring technology and the disadvantages of existing methods. after that the paper develops a new method for cross - traffic inferring based on delay jitter measurement, proves its correctness by experiments, and applies it to self - similar traffic background and real traffic trace to investigate its availability,
本文首先闡述了基於流量測量與分析的網路性能研究方向和研究現狀，而後介紹了自相似流量的基本概念和相關建模和分析技術，並採用小波分析的方法分析了單路復用網路模型在自相似流量下丟包的尺度特性，其次介紹了隱馬爾可夫模型以及其在網路性能研究中的應用，最後在此基礎上考察了網路流量推斷技術，分析了現有的方法的不足之處，提出了一種新的基於探測流延遲抖動測量的流量推斷測量技術，通過實驗證明了該方法的正確性，然後將其應用到自相似流量背景下考察了其對自相似性的推斷刻畫能力，並且通過實際流量檢驗了其有效性。 -
Scaling - up of patch model is necessary in the calculation of surface energy fluxes and evapotranspiration from remote sensing data. the simulation error of two - layer model caused by sub - pixel heterogeneity and discontinuity of surface geometry and physics were investigated using a number of data experiments
論文還分析了蒸散模型的空間尺度效應，通過一系列的模擬實驗檢驗了雙層模型中國科學院遙感應用研究所博士學位論文在不同地表非均勻狀態下的尺度誤差，並且根據通量尺度擴展的基本法則推導了雙層模型參數的尺度擴展公式。
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