查询词典 oscillation

In chapter 2, the oscillation of a class of nonlinear hyperbolic equations with continuous distributed deviating arguments is studied.

第二章研究了一类带连续分布时滞变量的非线性双曲方程的振动性。

The Ca〓 oscillations occured before GVBD were associated with the resumption of GVBD, because when the oocyte was cultured in medium with hypoxanthine, no Ca〓 oscillation occurred, without hypoxanthine the oscillations occured again.

这些Ca〓波动与卵母细胞的GVBD有关，被次黄嘌呤抑制于GV阶段的卵母细胞不出现这种形式的波动，当再次培养于无次黄嘌呤的培养液中则又出现Ca〓的波动。

The contact constraint conditions of the contact-impact model are described by the velocity field, so that it can satisfy the physical impenetrability constraint better and decrease the oscillation of the numerical algorithm.

本文接触—冲击有限元模型，以接触面速度场施加接触约束，不仅更符合物理上非刺穿条件，而且可以减小冲击接触算法振荡。

In addition, three special measures are introduced to guarantee the precision of solution, which are the pressure correction formulation to meet the impressible condition, the velocity correction formulation to avoid the error accumulation and a stability term addition to eliminate the velocity oscillation.

另外，本文还三种措施来提高晃动问题的精度，即通过压力修正来精确满足不可压条件、通过速度修正精确跟踪液面和通过引入稳定项避免解的振荡。

When the heat flux is just beyond that activates the boiling incipience, the oscillation time period is in the range of 50 to 100 seconds.

当热流密度略大于沸腾起始点时，脉动周期长达50~100s。

Unfortunately,the surge protection devices are occasionally faulty because of the protection indeterminateness due to the design and installation of SPD.We discussed the random characteristic of lightning strike,the breakdown time delay and jitter of SPD,multi-stages protection blind zone,the reflection oscillation of lightning wave between loads and SPD's,and proved the indeterminateness o...

由于SPD设计和施工带有多方面的不确定性，使被保护系统可能出现故障，导致SPD保护失效，因此从雷击特性的随机性、组成SPD元器件的击穿时延和分散性、多级保护盲区、雷电波在负载与SPD之间的反射振荡特性等方面进行了分析探讨，最终得出了SPD保护不确定性的必然性。

A modified backward Euler method is developed which enables to increase considerably the accuracy of jump voltage computation as a result of freeing its computing from the influence of the faint asymmetrical initial current in such an inductive circuit as converter and completely eliminate numerical oscillation in converter simulation as often seen in the case of implicit trapezoidal integration method.

本文提出一种变形的后退欧拉法，用该法对换流器这样的纯电感电路进行跃变电压计算，可完全避免初始电流中微弱的不平衡对跃变电压计算的影响，大大提高了跃变电压的计算精度，并彻底消除了隐式梯形积公法用于换流器仿真时所存在的非原型数值振荡。

However, due to the oscillation and singularity of the integrand of Green's function and that integral interval is infinite, it is difficult to compute the function and to control the accuracy.

而格林函数中被积函数的振荡性，奇异性和积分区间为无穷使得该函数的计算较为困难，精度不易控制。

It can be concluded that the slipping of phase interfaces or the viscous sliding of grain boundary, dislocation's oscillation, the infinitesimal plastic deformation that was caused by the difference of elastic module and heat expansion coefficient between phases of the alloy yielded the damping of the alloys.

研究表明合金的阻尼是由合金晶界和相界面滑动、位错振荡以及各相的热膨胀系数和弹性模量间差造成的微塑性变形共同造成的。

While the initial velocity is large, the object makes an oscillation damping movement in the granular medium.

研究发现，物体在上升过程中所受到的阻力也与物体的初速度有关。

The receding calculations and experiment analyses in this subject are built on the blood cast of pig tongue.

本研究课题的前期工作是采用猪舌血管铸型模拟人舌而进行的数值计算与实验分析。

"Each human infection constitutes an opportunity for genetic modification of the virus through reassortment, mutation, or both...."

&每一次人类的感染都暗藏着一次基因修改的机会，无论是通过病毒的整合、突变或者兼而有之。。。。&