constructed curves 中文意思是什麼
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The numerical simulation equations of the border curves in term of and as well as the matching rules and the frequency dependence of microwave electromagnetic parameters of a broad - band homogeneous absorbing coating with a finite value of reflection loss are available. these results pointed out the direction to develop rams ". according to the radar - absorbing model, the optimized design of rams with thin - layer, light - weight, broadband and strong - absorbing is available by the simple genetic algorithms, which can effectively conduct the research work of rams to the detail. small but completely, the electromagnetic parameter ' s databases of rams that based on actual microwave absorbers have been set up, the object function has been constructed which conform to the involved goals, the adaptive coding measure is taken which extends the coding length dynamically adapting to the condition of the number of actual absorbers or the precision of thickness and absorber - volume - percentage, the decoding technique is initiated which satisfies light - weight and strong - absorbing as well as thin - layer and broadband by adopting of tracing variable restricting conditions dynamically to control total thickness. when decoding, the variable restricting conditions of thickness are dynamically traced, so gain the radar absorbing coatings of light - weight multiple - layer single - ingredient. similary, of thickness and absorber - volume - percentage, of light - weight multiple - layer multiple - ingredient. also, the rams ' demand to radar - absorb performance as frequency is met making use of the penalty function
作為遺傳演算法的具體實施：根據本實驗室近來研製的吸波材料，建立了吸波材料的相關數據庫；構造了能真實體現「薄、輕、寬、強」優化目標的目標函數；根據材料的實際數量以及塗層厚度精度要求、吸收劑體積分數精度要求，建立了能動態擴展相應碼長的自適應編碼方法；首創了通過動態跟蹤變量的約束條件來控制塗層總厚度的解碼技術，以此實現了在不弱化寬頻、高強的吸波性能目標的同時，兼顧到薄層、輕質的使用性能要求；在解碼時通過動態跟蹤厚度變量的約束條件，實現了多層單組分吸波塗層對重量輕的要求；通過動態跟蹤厚度變量的約束條件和吸收劑體積分數的約束條件，實現了多層多組分吸波塗層對重量輕的要求；使用權重系數變化法，實現了吸波塗層的分頻段吸波性能要求。 -
A new method for determining knots to construct polynomial curves is presented. at each data point, a quadric curve which passes three consecutive points is constructed
一般認為，在滿足給定約束條件的前提下，一條曲線具有的應變能越小，則該曲線的形狀就越好。 -
Spline curves defined in the space constructed by polynomial and hyperbolic functions are studied in this paper. the main research contents and achievements are as follow : firstly, we generate the cardinal extended complete chebychevian ( ect ) - systems on the space constructed by polynomial and hyperbolic functions, then introduce the algebraic - hyperbolic b - spline space and identify the dimension law and zero properties. the existence of a basis of splines with minimal compact supports is demonstrated, and functions named non - uniform algebraic - hyperbolic b - splines are obtained by solving certain linear equations with a block matrix
本文主要研究定義在多項式和雙曲函數構成的空間上的樣條曲線，其內容和完成結果如下:一、生成由多項式和雙曲函數構成的空間上的一組典範式ect （ extendedcompletechebychevian ）組及其對偶， ，證明非均勻代數雙曲b樣條空間的維數定理和零點定理，直接通過解塊矩陣線性方程組得到具有最小緊支撐的非均勻代數雙曲b樣條函數，進而構造非均勻代數雙曲b樣條曲線，還具體給出低階的表示 -
Therefore, it can be used as an efficient new model for geometric design in the fields of cad / cam. at last, the spatial definition of periodic spline and natural spline constructed by polynomial and hyperbolic functions is given ; the dimension law and zero properties are demonstrated ; and therefore the non - uniform algebraic - hyperbolic period and natural spline curves are obtained. the applications of the low order are given in details
三、給出代數雙曲周期樣條及自然樣條空間定義，證明其維數定理和零點定理，構造具有最小緊支撐的非均勻代數雙曲周期及自然樣條函數，進而定義非均勻代數雙曲周期及自然樣條曲線，最後具體給出低階的表示和應用 -
The emphasis of the next two chapters are laid upon the two new families of the generalized ball bases which are introduced by wu hongyi, i. e., said - bezier type generalized ball ( sbgb ) bases and wang - said type generalized ball ( wsgb ) bases, the curves constructed on these bases include the bezier curve, the said - ball curve, the wall - ball curve and some intermediate curves
接下來的兩章主要介紹了鄔弘毅所提出的兩族廣義ball基： sbgb型基函數和wsgb型基函數，用這兩族基函數構成的廣義ball曲線，不僅包含了b zier曲線， sai - ball曲線和wall - ball曲線，還包含若干介於這些著名曲線之間的中間曲線。 -
First, a map between the cones and tangent surface on c - b zier curve und two - dimensional plane is found respectively and then a ruled surface between two bezier curves is constructed and a sufficient condition on its developablity is given
Zier曲線上的錐面和切線曲面，分別建立了它們到平面的等距映射，給出了c - b ? zier曲線上錐面、切線曲面的展開方法。然後，構造兩條空間b -
For the research of the damping control strategy one type of controllable damper, magnetico - rheological ( mr ) damper, was constructed and tested, the damping force and displacement characteristic curves, the damping force and velocity characteristic curves are obtained, so that the damping force and voltage ( current ) model, or the damping coefficient and voltage ( current ) model can be further obtained
通過特性試驗，得到示功特性、速度特性，經轉換得到阻尼器的阻尼力? ?電壓（電流）模型和阻尼系數? ?電壓（電流）模型。這樣在研究中，可以採用開環控制方式或力反饋控制方式實現阻尼力的控制。 -
As further expansion of the cubic a - b - spline interpolation curves, in order to raise the continuity of the curves even, the author has defined the blending functions of corresponding degrees, constructed the adjustable interpolation curves of degree 5 and degree 6 with polynomial blending functions of degree 5 ( 3 - b ) and degree 6 ( 3 - b ) respectively. they are c3 and c4 continuous separately
作為三次- b樣條插值曲線的進一步擴展，也為了提高插值曲線的連續性，作者定義了相應次數的奇異調配函數，同時利用三b五次、三b六次調配函數分別構造了五次和六次參數可調的插值曲線，它們分別是c ~ 3和c ~ 4連續的。 -
Main works : fractal and mechanism of forming fractal of fault surface in rock masses is analyzed and examined with it ' s affect on failure process of mining rock masses ; fractal curves are constructed with matlab to simulate the fault surface. similar material modeling is carried out and the fractal weak - face effect of mining rock masses is studied. mechanics character of rock masses with fractal fault in mining condition is simulated with large finite element software an sys ; catastrophe model of fault activated by mining is constructed with catastrophe theory
主要工作有：檢測和分析了巖體斷層面的分形性和斷層面分形的形成機制及其對采動巖體破壞的影響機理；運用matlab構造了分形曲線來模擬分形斷層面，進行了相似材料模擬實驗，研究了采動巖體的分形弱面效應；採用大型有限元軟體ansys模擬了含有分形斷層面的巖體在采動條件下的力學性態；運用突變理論建立了采動斷層活化的突變模型。 -
Therefore, spca gotten via selecting polynomial kernel functions is more accurate than pca in multi - index evaluation system, and has fewer dimensions. comparatively, for spca using gauss kernel function and laplace kernel function, it is required to normalize original data according to the category, and the constructed evaluation functions are better than the ones constructed via using pca. however, if variance contribution of first principal component of pca is more than 85 %, evaluation function curves of spca and pca are similar
在作多指標評價中，選用多項式核函數而得到的譜主成分分析，比主成分分析得到的主成分具有維數低且精度高的優點；而用gauss核函數和laplace核函數的譜主成分分析，需對原數據作同類別數據間的規范化，其構造的評價函數也優于用主成分方法構造的評價函數。 -
The data manipulation mode constructed on agent technology and three tier system was used to the inquiry of all - around information of borehole logging curves with the combination of agent technology and three tier construction
本文採用軟體agent技術和三層體系結構理論相結合作為系統應用的實現手段，實現了agent的三層體系結構的測井曲線綜合信息數據操縱模式。 -
Second, combining with the construction principle of geometry - goppa codes, we present a kind of new algebraic - geometry code by using the properties of algebraic curves on finite fields. we determine the value of the code - length n and d imension k, and the lower bound of the minimal distances of the new algebraic - geometry code. the new algebraic - geometry code have the following characteristics : ( l ) the new code is the generalization of geometry - goppa codes and the algebraic - geometry code constructed by chaoping xing and san ling in 2000 ( 2 ) compared with brouwer ' table of the best known codes, we find more new codes, there are at least 60 new codes under two - dimension cases
其次，結合幾何goppa碼的構造原理，利用有限域上代數曲線的特點來構造代數幾何碼，確定了新的代數幾何碼的碼長n和維數k的取值，給出了最小距離d的下限，這類碼的特點是： （ 1 ）新的代數幾何碼是幾何goppa碼和新加坡國立大學chaopingxing和sanling在2000年所構造的代數幾何碼的推廣； （ 2 ）這類碼中有許多種碼的參數優于brouwer碼表，僅二維情形時，就有60多種碼優于brouwer碼表。
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