integral coefficients meaning in Chinese
整系数
Examples
- According to the first and second references , a sufficiency and necessity condition on rational root of integral coefficients polynomial is put forward and a reduced method of testing the rational root is also shown in this paper
摘要给出了整系数多项式有理根的一个必要条件，从而得到整系数多项式有理根检验的一个简化方法，达到了简化整系数多项式有理根检验的目的。 - To improve the controlling quality of this system , it permit user modify controlling parameters . user can input integral coefficient - kt . scaling coefficient can be adjusted by controlling system according to e and adjusting scale inputted by user
为进一步改善控制系统的控制品质，允许用户对控制参数进行修改， k _ i由用户输入， k _ u则根据用户设定的调整步长和温度偏差的情况由控制系统自调整。 - In this dissertation , the numerical computation for the acoustic radiation problem ( arp ) is studied deeply and systematically in the theory , method and the application technique , based on analyzing the situation of the home and abroad on the numerical computation for the acoustic radiation problem . the calculation formulas of the boundary element method ( bem ) for the exterior acoustic radiation problem in the full - space and half - space are deduced , based on the wave propagation theorem ; the arising of the non - unique solutions , which is associated with the application of the boundary integral equation ( bie ) in acoustic radiation problem , is analyzed and proofed ; the improved combined helmholtz integral equation formulation ( ichief ) is presented to overcome the non - uniqueness problem more effectively and reliably ; the determination of the singular integral coefficients on various occasions is analyzed ; the properties and treatments of the singular integrals with different orders axe studied ; the computation program of the cubic spline ichief is developed and its ability to overcome the non - uniqueness problem and feasibility to discrete the surface coarsely with the sufficient calculation precision are examined through examples
第二章在声波动理论基础上，详细地推导出对应于无限域和半无限域的外部振动声辐射问题的边界积分方程计算公式；根据fredholm积分理论，对利用边界积分方程计算振动声辐射问题过程中解的非唯一性的产生进行了分析和证明；改进了chief法以提高其克服解的非唯一性的有效性和可靠性；对不同条件下奇性系数的计算、强奇性积分的收敛性及其在变量替换时与普通积分的差异性、不同阶奇性积分的计算、数值求积分等进行了研究；开发了三次样条改进chief法计算软件，并通过算例考核了该方法在特征波数处克服解的非唯一性的有效性和在保证计算精度的前提下实现剖分粗化以提高计算效率的可行性。 - This paper put forward a method of using amending sine value in the spwm sine table . this method can correct the distortion of the output voltage waveform , which resulted from the dead time used to the voltage type whole bridge main circuit . the inverter system adopts digital fuzzy controller with feed forward correction and which proportion coefficient and integral coefficient is changeable , so dynamic response is improved
本文提出了一种采用修补spwm正弦表值的方法，用以改善电压型全桥逆变主电路因上下桥的功率器件切换时先关断后导通的死区时间而引起的输出电压波形畸变；逆变系统采用带前馈校正的变比例变积分系数的模糊控制器，提高了系统的动态响应指标；系统设计了完善的保护措施，并具有市电电网的故障诊断功能。