quartic

1. The curvilinear equation of quartic polynomial is used to simulate the boundary of the pile hole to improve the presumption of previous research results which are not well suitable.
   重点对孔壁边界曲线的几何形状及其曲线方程的假定方法展开研究，并应用四次多项式模拟孔壁边界曲线。
2. Moreover equations of degree higher than quartic often arise in equilibrium calculations.
   况且，在平衡计算中常常发生比四次方程还高的高次方程。
3. Classical and quantum oscillators of quartic anharmonicity are solved analytically up to the second power of ( weak-coupling constant) by using the multiple-scale perturbation theory.
   应用多尺度微扰理论研究了弱耦合非简谐参数的经典和量子四次非谐振子，得到了四次非简谐运动方程的经典和量子二阶解。
4. Modeling Research on Quartic Rational B é zier Curve and Surface
   四次有理Bézier曲线曲面造型的研究
5. Extension of quartic Said-Ball curve
   四次Said-Ball曲线的扩展
6. Accurate Analysis of Two Root Algorithms on Solving Quartic Equation
   一元四次方程2种根式求解算法的精度分析
7. Locally topological structure of quartic system in the first critical case
   第一临界情形下的四次系统的局部拓扑结构
8. Connectivity of Filled Julia Sets for a Kind of Quartic Polynomials
   一类四次多项式填充Julia集的连通性
9. Construction and Performance Analysis of the Quartic Frequency Hopping Sequences over Finite Field
   有限域上四次跳频序列构造及其性能分析
10. Digital Image Watermarking Algorithm in Wavelet Packets Transform Base on Quartic SVD
    基于四重奇异值分解的小波包数字图像水印算法
11. Rational quartic interpolating spline based on function values and its application
    基于函数值的四次有理插值样条及其应用
12. The solar equation table of the Dayan Calendar is a mathematical table of equally quartic difference, and it reflects Yi Xing's profound understanding about the solar motion.
    《大衍历》日躔表是一份四次差分相等的数表，反映一行对太阳运动复杂性的深刻认识。
13. This paper proposes a piecewise geometric approach to parametrize a kind of quartic implicit algebraic surface.
    提出了一种隐式曲面之间的求交方法，主要用于道路施工机械复杂曲面的求交计算。
14. However, for work roll and intermediate roll bending compensation model both quadratic and quartic components of strip flatness can be controlled effectively.
    而采用工作辊与中间辊弯辊相结合的板形前馈控制模型则对二次和四次板形均具有很强的控制能力。
15. The method of qualitative analysis of differential equation and bifurcation is employed to study two classes of quartic systems.
    用微分方程定性分析方法和分支方法研究两类四次系统。
16. The concept of quartic Hermite curve is presented for an application to meet some special engineering requisitions, based on the theoretic methods of Hermite interpolation curve.
    在Hermite曲线插值理论基础上，针对工程应用中的特殊要求，提出了四次Hermite插值曲线的概念。
17. Under action of uniformly or polynomial distributed load, upper and lower critical loads of shells with linearly or polynomial variable thickness have been calculated including conical shells, spherical shells, quartic polynomial shell and cosine shells.
    本文给出了均布或多项式分布荷载作用下，线性或多项式型变厚度的圆锥壳、球壳、余弦壳或四次多项式型旋转壳的上、下临界荷载。
18. This paper is concerned with the problem of quartic lacunary polynomial spline interpolation.
    本文讨论四次缺插值多项式样条。
19. Through Sellmeier equation and quartic fit method, the relation of Sellmeier equation's coefficient to temperature is calculated, thereby the rotatory power of quartz crystal at different wavelength and random temperature can be obtained.
    根据测试结果，通过求解塞耳迈耶尔方程和四次拟合的方法，得出了塞耳迈耶尔方程的常数与温度的关系式，从而可以得出任意温度下不同波长对应的石英晶体的旋光率。
20. In this paper, the second and the quartic vertical derivatives were calculated and verified by three theoretical models and a field example.
    本文中用三个理论模型和一个实例作了二阶、四阶垂向导数的计算和检验。
21. It has many important properties of common quartic B-spline curve.
    它具有普通四次B&样条曲线的重要性质，但不是由五个，而是由四个顺序控制点就能生成一曲线段。
22. The kink waves of a nonlinear quartic equation Four species, i.e. C.
    一类非线性四阶方程的纽结波解（英文）确认了宽叶金粟兰、及己C。
23. Quartic exponential smoothing method can follow the nonlinear trend of time series better and can also forecast better.
    布朗单一参数四次指数平滑能更好地跟踪时序的非线性变化趋势，达到更好的短期预测效果。
24. The quartic Runge-kutta Method improved by Gill is used to Calculate the propagation Characters of a Single-mode taper fiber.
    用四阶龙格&库塔法的基尔改进式，计算了单模锥体光纤的传输特性。
25. The two dimensional uncoupled quartic oscillator was chosen to test the validity of the Berry Tabor trace formula.
    选择二维无关联四次振子系统作为理论模型来验证Berry-Tabor公式的有效性。
26. The constructed surface has the precision of quartic polynomial interpolation.
    所构造的曲面具有四次多项式插值精度。
27. By simplifying the denominator of its objective function, ML model becomes a quartic polynomial form.
    一般对该目标函数的分母简化，使模型变成一个四次多项式形式。
28. We discuss the continuity equation should be satisfied by C2 continuous quartic spline curve. We also propose a new method to construct C2 continuous quartic spline surfaces.
    讨论了C2连续的四次样条曲线需满足的连续性方程，提出了构造C2连续的四次样条插值曲面的新方法。

noun

1. an algebraic equation of the fourth degree

   Synonym:    biquadratebiquadraticfourth power