查询词典 oscillation

Secondly, it is concluded that all these researches above supported the conclusion that the thermoacousitic oscillation in combustor is the self-excited oscillation with feedback that produced the limit cycle oscillation with stable amplitude.

最后将其扩展到多旋流预混燃烧，试验比较了不同组分模拟合成气在三种多旋流模型燃烧室中进行预混燃烧的不稳定燃烧特性。

Main contents are as follows :In chapter one, we give a survey to the development and current state of the oscillation of differential equations and difference equations. We also introduce some preliminary material , including some basic concepts of the oscillation theory and some important fixed point theorems.In chapter two, we investigate the oscillation of second order self-conjugate differential equation with impulses.

本文由五章组成，主要内容如下：第一章概述了微分方程及差分方程的应用背景和国内、外研究状况，这一章也包括一些预备知识，如有关微分方程、差分方程理论的基本概念和重要的不动点定理。

However, operating of the high current, the output power, gain, and efficiency of gyro-TWT will be degraded where the absolute instability, gyrotron backward oscillation and reflective oscillation occur to cause mode competition. Stability issues comprise the key factors limiting the performance of the gyro-TWT.

对於高电流的影响，磁旋行波放大器将有可能引发绝对不稳定、磁旋返波振荡(gyrotron backward oscillation；gyro-BWO)及反射振荡，造成模式竞争而抑制原先操作模式的放大波，进而影响其输出功率、增益及效率。

However, operating of the high current, the output power, gain, and efficiency of gyro-TWT will be degraded where the absolute instability, gyrotron backward oscillation and reflective oscillation occur to cause mode competition. Stability issues comprise the key factors limiting the performance of the gyro-TWT, therefore physical origins of spontaneous oscillations in the gyro-TWT are analyzed and characterized.

然而受限於操作高电流，磁旋行波放大器可能引发绝对不稳定性、磁旋返波振荡(gyrotron backward oscillation；gyro-BWO)及反射振荡，造成模式竞争而抑制原先操作模式的放大波，进而影响其输出功率、增益及效率。

On the interannual timescale, two waveguides of planetary waves in the northern winter have antiphase oscillation. On the one hand, this interannual oscillation has an interaction with the Northern Annular Mode. On the other hand, it exerts influence on the climate anomalies over East Asia.

在年际时间尺度上，冬季行星波两支波导的变化存在反相关的振荡关系，这种年际振荡一方面影响了北半球环状模的位相，另外一方面导致了东亚地区的气候异常。

In this paper,the asymptotic property for two kinds of ecological systems and oscillation for solutions of a neutral differential equations is studied by employing differential inequalities and using eigenvalue analysis,iterative algorithm,induction and comparison theorem etc.Here, the system\'s asymptotic property includes the uniform persistence,the global attractability of the solutions,the asmptotic stability of the solutions and the oscillation of solutions.

本文利用微分不等式、特征根分析法、迭代法、归纳法及比较原理等方法和理论，研究了两类生态模型解的渐近性和一类脉冲中立型微分方程解的振动性，其中包括模型的一致持久生存性，正平衡态的全局吸引性、局部与全局渐近稳定性以及解的振动性。

By analyzing the reason of the numerical oscillation phenomenon and computing the temperature field in plate rolling process,it is found that numerical oscillation can be restrained effectively when the heat capacity matrix is lumped by using backward difference scheme.

近年来，许多研究人员采用有限元法分析热轧和淬火等过程中的瞬态温度场。

Applied conductance law is kinetic to reaction of bee glue enzymatic catalysis undertake study, result discovery, in bee glue - in enzymatic system, be in without oscillation phenomenon; bee glue - enzymatic - inside NaCl system, electrical conductivity lifts quickly, appeared only 3 more apparent fluctuant peaks, accumulate period longer, it is 10~20 Min about, accumulate period afterwards, electrical conductivity lifts quickly reduce quickly again, fluctuant and gently; is in after 40 Min bee glue - enzymatic - inside KCl system, response is quick, oscillation period is 20 Min about, the wave motion after 30 Min is slow till platform reacts,stop.

应用电导法对蜂胶酶催化反应动力学进行探究，结果发现，在蜂胶-酶体系中，无振荡现象；在蜂胶-酶-NaCl体系内，电导率急剧升高，只出现了3个比较明显的波动峰，积累期较长，大约为10~20 min，积累期过后，电导率迅速升高又迅速降低，40 min后波动平缓；在蜂胶-酶-KCl体系内，反应迅速，振荡期大约为20 min，30 min后波动缓慢直至平台反应终止。

The one-way analysis and orthogonal technique were used to optimize the oscillation in the liposomes as follows:the material was yolk lecithin;the mol ratio of yolk lecithin to Cholesterol was 1:1;the ratio of Na~+ to K~+ was 2 mM:1 mM.There was the conservation of charge in the oscillation system.

通过单因素实验和正交实验确定振荡的最佳条件：原材料选用蛋黄卵磷脂，胆固醇与蛋黄卵磷脂摩尔比1：1，膜外Na~+和K~+的浓度比例为2 mM：1 mM。

The low-dimensional Galerkin method is generalized to solve the flow around arbi-trarily translating circular cylinder.Active control problems of wakes behind circularcylinders are numerically investigated by only small number of modes.The in-line andtransverse oscillation of a circular cylinder with proper frequency produce Karman vor-tex street successfully in some subcritical regime,vhereas the transverse oscillation of acircular cylinder with 1.8 times the natural shedding frequency can effectively suppressthe Karman vortex street at a slightly supercritical Re.

将低维Galerkin方法推广至可以求解任意平移运动圆柱的绕流问题，用较少的模数值研究了圆柱尾迹的主动控制问题，在亚临界Re数下圆柱以适当的频率沿流向和横向振动均成功地激发出Karman涡街；而在略高于临界Re数下圆柱以1.8倍自然脱涡频率沿横向振动明显地抑制了Karman涡街；再现了超临界Re数横向及流向振动圆柱绕流的频率锁定等复杂非线性现象。

Vishnu entered a dark fourth dimensional dream that did not support his field or continued life.

毗瑟挐进入了一个第四密度的黑暗梦想，那里并不支持他的能量场或继续生命。

Leaders and decision-making persons use it to collect the data, including the information of unit work, handing in fee, oweing fee, prepaying fee,changing and afterpaying and account transfering of joining-insurance employee, and account paying of all kinds of insurances from hospitalization insurance institutions.The collected data is picked up, organized, switched and showed to user.

该子系统主要面向各级领导、决策分析人员；从各个医疗保险经办机构和定点医疗机构采集数据，包括在各个医疗保险经办机构处理的单位办公信息，单位缴费、欠费、预缴费信息，参保职工变更信息，参保职工增减变动信息，参保职工补缴信息，参保职工帐户划拨信息：包括各定点医疗机构处理的各险种帐户支出信息，各险种的统筹金支付信息等；将采集的数据提取，组织和转换，然后展示给用户。