Curves相关论文
We use the technique of Ruan(1999)and Li and Ruan(2001)to construct the virtual neighborhoods and show that the Gromov-W......
Thermodynamic Characterization of Planar Shapes and Curves, and the Query of Temperature in Black Ho
The purpose of this research is to characterize shapes in thermodynamic terms, namely, in terms of total energy, dissipa......
Calibration curve and support vector regression methods applied for quantification of cement raw mea
Laser-induced breakdown spectroscopy(LIBS)is a qualitative and quantitative analytical technique with great potential in......
Let Γ be a closed smooth Jordan curve in the complex plane. In this paper, with the help of a class of fundamental func......
Nthers theorem of algebraic curves plays an important role in classical algebraic geometry. As the zero set of a bivar......
We prove upper bounds for the number of rational points on non-singular cubic curves defined over the rationals.The boun......
This is the note for a series of lectures that the author gave at the Centre de Recerca Matemtica (CRM), Bellaterra, B......
In this paper, we introduce the Nevanlinna theory using stochastic calculus, following the works of Davis(1975), Carne(1......
By means of an electrochemical study,the influence of arsenic,antimony and cobalt on cathodic polarization in the zinc e......
The potential energy curves for the X1∑+g, B1△g and B′1∑+g states of C2 have been studied by using MRCI and approxim......
Modelling of dynamic recrystallization kinetics of 300M steel at high strain rates during hot deform
The flow curves of 300M steel exhibit a transition from stress peak presence to stress peak absence as the strain rate i......
Hugoniot curves and shock temperatures of gas helium with initial temperature 293 K and three initial pressures 0.6, 1.2......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
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给出了空间圆柱螺旋线的NURBS表示方法,讨论了控制顶点对其形状的影响,并具体分析了用于逼近的螺旋曲线与原理论螺旋曲线之间的误......
曲线族的包络线的一般求法,运用起来有时比较复杂,费时费力且容易出错.本文给出了在一些特殊场合下的特殊求法,使得运算大大简化.......
本文提出了在Transputer网络上计算均匀双3次B样条曲面的一种并行实现.这个工作对构造基于Transputer上的CAD和图形系统是有效的......
利用δM(H)曲线研究了烧结NdFeB磁体中的晶粒相互作用(包括长程静磁要互作用和晶粒间交换耦合相互作用)。结果表明,δM(H)曲线方法可以解释烧磁体中......
The corrosion behavior of corrosion resistant steel(CRS) in a simulated wet–dry acid humid environment was investigated a......
崭新的科技拉近了世界各国之间的距离,在各种交通工具要求速度的同时,我们也看到了安全问题的重要性。本文从用户对汽车智能系统的需......
本文主要针对跨声速风洞翼型实验表面压力分布曲线处理中出现的问题作了分析和讨论。同时,从绘制该翼型压力分布曲线的特点出发,分......
A new method for constructing contours from complicated terrain elevation grids containing invalid data is put forward. ......
介绍了在大同至西安客运专线铁路工程三跨连续(148m+128m+148m)钢管拱安装施工中,采用一种大跨度弓弦式钢管拱高位长距离曲线滚动顶推施......
针对我国小半径曲线地段外轨侧磨目益严重这一现状,笔者在前期研究工作的基础上给出了外轨侧磨和超高关系的数学模型,进而提出了以减......
本文介绍了一种适合野外队现场使用的电测深曲线自动快速解释法。这种方法可从PC-1500上一次处理大批数据。并分析了高速的原因,给......
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This paper presents a procedure to develop fragility curves of structures equipped with TMD considering multiple failure......
提出了一种新的大目标去除的图像修复方法,即先采用结构传播,再采用相关的纹理传播来完成修复工作。该方法要求人为指出少量的曲线......
The two-point central difference is a common algorithm in biological signal processing and is particularly useful in ana......
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透视曲线的逆变换是透视图象三维逆变换的重要基础。本文在给出透视投影逆变换基本方程的基础上,分别提出了圆、椭圆、二次曲线、任......
在基本向量为^→α、^→β、^→γ且曲率和挠率分别为K、τ的已知曲线Г:^→τ=^→τ(S)的基础上,对曲率κ、挠率τ分别取不同值的4种......
提出一个适用于光栅显示器及其它点式图形设备的增量式抛物线生成算法。该算法只用整型运算来选择离抛物线最近的光栅点,并且不需......
逆向工程中曲线的测量应遵循采点密度随着曲线曲率变化而疏密不断变化这一原则,并应根据对离散点的特征进行分析来确定拟合函数的......
Investigations on the pyrolysis and kinetic behaviors during pyrolysis of fossil fuel samples, such as coal, are fundame......
根据射孔完井电模拟以及Locke和Hong数值模拟研究的结果分析了射孔孔径、孔密及射入深度对表皮系数和油井产能的影响,发现使用和Lo......
分析了不规则曲线在AutoCAD中的表示方法及其数据结构,给出了利用ADS(AutoCADDeveiopmentSystem)对一条不规则曲线与多个不规则区域相交所围成的面积进行计算的方法.着重描......
对TC4棒材400 ℃蠕变性能进行试验研究,进行了6组应力水平试验,建立了应变-时间曲线和塑性应变为0.2%时蠕变应力-时间寿命曲线,分析......
利用OpenMaple与Maple 9的交互能力可将复杂的数学计算交由Maple 9处理,而将计算结果返回应用程序实现隐函数曲线的显示.给出了基于O......
通过对仿效创新项目地R&D投入与产出之间关系量的分析,建立了单一品种和多品种项目产值的科长式,明确了R&D投入的累积对仿效创新项目产出的......
描述了国外几种主要摆式客车转向架的结构特点,并简要介绍了我国铁道线路的基本情况,根据我国线路特点和摆式客车对围向架的特殊要求......
为了分析小半径曲线换铺60 kg/m钢轨引起的钢轨作用于扣件的横向力和轨道几何误差,建立了力学分析模型,并以黔桂线最小曲线半径(17......
RESEARCHONNURBSSKINNINGSURFACEVIACOMPLEXCURVES¥ZhangLenian;ZhouLaisui;ZhouRurong(ResearchcenterofCAD/CAMEngineering,NanjingUn.........
本文在分析讨论TPμp—40A打印机输出打印命令中的重复打印同一字符的命令和用户自定义字符、图符命令功能和特点的础基上,使用Z80......
引入有限元对活塞环自由状态曲线进行了分析研究。通过分析变形状态,根据活塞环结构和压力分布特点,采用八节点曲边等参元,在VC++环境下编......
塔河油田奥陶系油藏是典型的缝洞型油藏,复杂的地质因素导致了储层勘探开发难度大,生产规律不明显,含水变化复杂。提出3条新型的生产......
针对单一特征引导医学图像配准的准确度有限性,提出一种使用多种特征的图像配准方法.特征提取采用半自动化方式,使操作者能够精确......
In this paper, we study the intersection multiplicity of algebraic curves at a point both in R~2 and in real projective ......
本文介绍了计算机仿真在电工学课程教学中的应用有关内容。利用Matlab软件的多种功能较好的解决电工学教学中涉及到的电路波形分析......