It is the first time that 7 limit cycles can bifurcated from the infinity for a class of quasi quintic system.
首次证明了拟五次多项式系统在无穷远点能分支出7个极限环。
In this paper, the problem of limit cycles bifurcated from the equator for a quintic polynomial system is investigated.
本文研究一类五次平面多项式系统赤道极限环分支问题。
Although spline curves are applied widely, but the research on the algorithms of quintic spline interpolation is little.
虽然样条曲线具有广泛的应用，但对五次样条插值算法的研究却很少。
Based on the curve of quintic polynomial, the take-up CAM is designed, and the method of optimized design is presented in this paper.
利用五次多项式曲线对挑线凸轮进行了设计；并根据刺绣机的特殊要求，提出了刺绣机最优化设计方法。
Load distribution of axial fan along to the blade and blade height is put forward according to dynamic design method of quintic equation.
提出了轴流通风机沿叶片叶高的载荷分布，按五次方流型设计的方法。
At the same time, the center conditions and bifurcation of limit cycles at the origin of the quintic polynomial system are also investigated.
同时还研究了一类五次系统原点的中心条件及在同步扰动下原点与无穷远点的极限环分支问题。
A algorithm to reconstruct the corner with quintic spline curves was proposed for improving cutter's motion stability and transition velocity.
为提高裁刀拐角过渡速度及获得良好的运动平稳性，提出五次样条曲线拐角重构算法。
When the initial chirp of the pulse is of same (opposite) sign as that of quintic nonlinearity coefficient, the whole chirp increases (decreases).
当预啁啾与五阶非线性系数同(异)号时，总啁啾增加(减小)。
This paper present a sufficient and necessary condition of constructing quintic PH curves and analyze the geometric meaning of the control polygon.
本文给出了构成五次PH曲线的充要条件，分析了其控制多边形的几何意义。
The condition and power gain spectra of modulation instability induced by the cross-phase modulation in the case of cubic-quintic nonlinearity are analyzed.
分析了三、五阶非线性共存时的交叉相位调制不稳定条件和增益谱。
In Chapter 4 and Chapter 5, complete researches have been done respectively on the center conditions and center integral of a quintic system and a septic system.
在第四章和第五章，分别对一类五次系统和七次系统的无穷远点的中心条件和中心积分进行了完整研究。
In this paper, we consider some planar quintic Hamiltonian vector field with Z3-equivariant property, get its global phase portraits, and classify its parameter space.
文章考虑了一类具有等变性质的五次哈密顿向量场的全局性质，得到了其全局相图并对参数空间进行了划分。
In the fifth section, we obtain some sufficient conditions under which a class of a planar quintic system has at most two limit cycles by transforming it into Abel equation.
第五章讨论了一类可化为abel方程的五次多项式系统的极限环的个数，得到此类平面五次多项式系统至多存在两个极限环的充分条件。
The results show that, in case of high-order dispersion, the positive and negative quintic nonlinearity also intensifies and weakens the cross-phase modulation instability, respectively.
研究表明，在高阶色散下，正负五阶非线性的存在仍然分别对交叉相位调制不稳定性起加强和削弱的作用；
The applied interpolation method adopts quintic spline and derivatives generation approach for discrete points by using quartic polynomial, which can better meet the needs of high-accuracy machining.
所提出的插补方法采用五次样条和四次曲线多项式微分法近似求取导数，能够更好的满足精确加工的需要。
The applied interpolation method adopts quintic spline and derivatives generation approach for discrete points by using quartic polynomial, which can better meet the needs of high-accuracy machining.
所提出的插补方法采用五次样条和四次曲线多项式微分法近似求取导数，能够更好的满足精确加工的需要。
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