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    Application of First Differential Grouping Method Based on the Dynamic Linear Regression in Thread Testing
    基于动态线性回归的—阶导数分段法在螺纹检测数据处理中的应用
    Integral Kinds of the Variable Coefficient First Differential Equation
    关于变系数一阶微分方程的几个可积类型
    The first differential coefficient reaches negative significant level at 0.01 in blue edge range from 490 to 550 nm and the former part of red edge from 680 to 717 nm, positive significant level at 0.01 in yellow edge range from 557 to 668 nm and the latter part of red edge from 717 to 797 nm.
    557-668nm的黄边、717-797nm红边的后半部分达到0.01的极显著正相关水平。
    The peak potential is -0.82 V(vs.SCE) at first differential polarograph. The liner relationship between peak current and concentration of Eu(Ⅲ) is found in the range of 1.010~(-7)~8.010~(-6) mol/L. The limit of detection is 9.010~(-8) mol/L.
    在pH10.2的NH3-NH4Cl缓冲介质中,Eu(Ⅲ)-钙试剂络合物在-0.82V(vs.SCE)处有一灵敏的导数极谱波,其峰电流与Eu(Ⅲ)的浓度在1.0×10-7~8.0×10-6mol/L范围内呈线性关系,检出限为9.0×10-8mol/L。
    Meanwhile, the shape design with control vertex constructs curve which can meet the mathematics characteristic in need and guarantee the continuity of the first differential coefficient or above the second differential coefficient.
    利用控制顶点进行形状设计,其所构造的曲线较易满足设计所需的数学特性,能保证曲线曲面连接处的一阶或二阶以上高阶导数的连续性。
    There are many methods of edge detection. According to practical task, we choose some classical methods of edge detection including first differential(Roberts operator, Sobel operator and Prewitt operator), second differential(Laplacian operator and Kirsch operator), LOG filter and Canny operator. They are studied in theory and practice applying.
    边缘检测有很多方法,根据课题实际背景,选择了几种比较经典的边缘检测方法,即一阶算子(Roberts算子、Sobel算子、Prewitt算子)、二阶算子(Laplacian算子和Kirsch算子)、LOG算子和Canny算子,对他们进行理论和实际应用研究。
    The value of mineral resources consists of absolute mineral rent and the first differential mineral rent on the basis of effect value theory, default value theory and Marx s ground rent theory.
    矿产资源的价值理论以效用价值理论和稀缺价值理论为基础,加上马克思的地租理论,从而可以得出矿产资源的价值由绝对矿租和第一级差矿租两部分组成。
    And detailedly introduces image processing technology including image filtering(Mean fliter, gradient preciprocal weight filter, Median filter), edge detection, as first differential(Roberts operator, Sobel operator and Prewitt operator), second differential(Laplacian operator and Kirsch operator), LOG filter and Canny operator. They are studied in theory and practice applying.
    在本文中,详细介绍了图像处理技术——图像滤波技术(邻域平均法、梯度倒数加权法、中值滤波法)和图像边缘检测技术,即一阶算子(Roberts算子、Sobel算子、Prewitt算子)、二阶算子(Laplacian算子和Kirsch算子)、LOG算子和Canny算子,对他们进行理论和实际应用研究,并把处理的结果进行了比较。
    In this paper, the author discusses the existence and the montone iterative technique of the solutions for terminal value problems of first differential equations in Banach space, if the one-sided condition of Lipschitiz, f(t, u)-f(t, u) ≤ N(i) (u - u), u≥u, or f(t, u)-f(i, u) ≥ N(i) (u - u), u ≥ u, is satisfied.
    本文讨论了Banach空间中一阶微分方程的终值问题u′=f(t,u),u(∞)=u_∞在分别满足两个不同方向的单边Lipshitz条件下解的存在性与单调迭代技巧。
    The Deborah Number,N_(De),is a rheologic characteristic of the viscoelasticity of a fluid and can be determined from experimental data of its first differential normal stress,τ_(11)-τ_(22),which,however,is too little to be measured by an ordinary rheome- ter for dilute polymer solutions.
    德博拉数(N_Dc)是表征流体粘弹性的流变参数,可由实验测得的流体第一法向应力差■求出。 但聚合物稀溶液的■数值太小,在一般流变仪上测不出。
    By means of Leray-Schauder fixed point theorems for set-alued maps are given,two existence results on the initial value problem for first differential inclusions and on the boundary problem for second differential inclusions are obtained.
    应用集值的Leray—Schauder不动点定理,获得了一阶微分包含初值问题和二阶微分包含边值问题的解的存在性定理.
    The first differential admittance cardiograph (dy/dt) was differentiated real time from the cardiac admittance plethysmograph (Δy) with microcomputer.
    以微电脑采集心导纳血流图,同步自动微分得心导纳微分图。
    Finally Electrocardiograms were recorded of 53 dogs falling into three groups and used to test the algorithm. From the measured R-R intervals, a time series of 1000 first differential was constructed for each subject.
    最后利用3类共53只狗的心电图,每只狗的心电数据为1000个R-R间期的微分序列检验了该算法。
    This paper describes the basic principles of wavelet transform and its application to the automatic detection of ECG signal. Two algorithms are given which are constructed by the first differential wavelet function and second differential wavelet function. Analysis results show that the detection rate has reached to 99.6%, which is satisfied in practical application.
    将小波变换方法应用于心电信号的自动分析 ,分别用一次微分小波和二次微分小波构造了两个具体的算法 ,对实际心电信号的分析表明 ,算法的 QRS波的检出率达到 99.6%以上 ,可以满足实际应用的要求 .
    In this paper,the theory 1 1 of is studied and popularized of great value,and the calculated methods for more first differential equations are studied with it.
    对文献 [1]定理 1 1 进行了有价值的研究和推广 ,并利用它对更广泛的一类一阶微分方程的求解进行了研究
    Based on the theory of differential geometry and geodesy,the second order differential equation and the first differential relationship are derived on the regional earth ellipsoid in this paper. The relationship between the azimuth and the defined direction angle in the geodesic coordinate system is therein obtained.
    应用微分几何和大地测量理论 ,提出并推证了在地球椭球面上的局部区域内以测地坐标为坐标参数的大地线二阶微分方程和一阶微分关系式 ,其间定义了在测地坐标系中大地线的方向角 ,并得出该方向角与大地方位角的关系式 .
    The displacement functions of a 3D orthotropic rectangular thick plate with simple supported boundary conditions were expanded in the forms of double trigonometric series. The state equations were established based on the governing equations,in which the displacements and the first differential of displacements were assumed as state variables.
    将三维矩形板的位移变量按双三角级数展开 ,导出位移形式的平衡方程 ,以 3个位移分量及其一阶导数为状态变量 ,建立状态方程 .
 

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