Numerical calculation is applied to discuss the characteristic of bistable state of a revolving single pendulum , and the oscillation of revolving single pendulum in the large angle surround the steady equilibrium point is studied when single pendulum revolves with the angular velocity 摘要利用数值计算的方法分析了旋转单摆以一定角速度旋转时的双稳态特征及其围绕稳定平衡位置的大角度振动。
2 bhalla u s , iyengar r . robustness of the bistable behavior of a biological signaling feedback loop . chaos , 2001 , 11 : 221 - 226 . 3 cho k h , shin s y , lee h w et al . investigations into the analysis and modeling of the tnf alpha - mediated nf - kappa b - signaling pathway 这三个重要的特征量有着特定的含义： 1信号时间是指激活信号所需要的时间2信号持续时间是指信号处于激活状态持续的时间2信号幅度是指信号的平均强度。
When there is a weak periodic signal is included in a bistable system , the effects of noise on the stochastic resonance in the system is investigated if both multiplicative and additive noise are white noise while the coupling between the two noise terms is colored noise 当双稳系统中包含有一个微弱的周期性信号，而乘性噪声和加性噪声都是白噪声，只有两种噪声之间的祸合为色噪声时，我们研究了系统的噪声对随机共振的影响。
Then , the numerical calculation to the reflection light spectrum is deduced by utilizing berremam ’ s 4 4 matrix , which will supply theoretical gist to the following experiments . at last , the psct with better planar structure is achieved , and the psct is bistable at zero field 本论文首先简要介绍了胆甾相液晶自身特有的光学特性,然后利用berrenman ’ s4 4矩阵方法对胆甾相液晶的反射光谱进行了数值理论计算,从而为下一步制作psct提供了理论依据。
In this way , supersonic fluid amplifier especially bistable valve with negative pressure switch is used in the rocket projectile thanks to its advantages of switching rapidly , the ability of low temperature air to control the high temperature gas and no moving parts in high temperature gas 超音速射流双稳阀，特别是采用负压切换的超音速射流双稳阀因其具有切换快速、可用低温气流控制高温燃气和在高温燃气中无活动部件的优点而适用于火箭弹的姿态控制系统中。
Experimental results show that the bistable of tuned substrate self - bias was determined by discharge gas pressure , discharge power and tuning circuit parameters etc . the bistable exists is because of there is capacitive coupling in icp system and sheath capacitance is nonlinear 实验结果表明这种跳变回滞现象与等离子体的放电气压、射频功率以及调谐外电路的参数等多种因素密切相联系。而产生跳变回滞现象的原因是icp中存在容性耦合以及鞘层电容具有非线性特性。
Secondly , combining the unified colored noise approximation and the functional analysis , the steady state distribution function is derived when both multiplicative colored noise and additive white noise are included in a bistable system with colored coupling between two kinds of noise . through the two - state theory , the expression of signal - to - noise ratio ( snr ) is obtained . the phenomenon of stochastic resonance is investigated 其次，我们综合运用统一色噪声近似和泛函近似的方法，推导了含有乘性色噪声和加性白噪声，并且两种噪声之间的耦合为色噪声的双稳非线性系统的定态分布摘要不同类型的色噪声对非线性光学系统的影响函数，然后通过双态理论求出系统信噪比的解析表达式，对系统的随机共振现象进行分析。
In this thesis , the investigations of the application of stochastic theory in protein motor and fhn neuron model are systematically reported , which include four aspects : effects of random potential on motor protein transport ; noise - induced transition in a fhn neural model ; stochastic resonance in a bistable system subject to multiplicative and additive noise ; coherence and stochastic resonance in a globally coupled fhn neural model 现在我们集中报导对随机理论在生物马达蛋白和fhn神经模型上的应用所进行的一系列的研究，主要有以下四个方面：涨落势诱导生物马达蛋白输运；噪声诱导fhn神经模型相变：噪声关联对双稳系统随机共振现象的影响；全局耦合的fhn神经网络的随机共振和同步共振。
Compared with mechanics - electricity feedback control method , laser diode feedback control method and optical bistable equipment control method , the circuit is relatively simple , furthermore , simply adjust the optical system to increase the number of pixel corresponding to the interference pattern width , which will promote the control precision of the system 和已有的机电反馈控制方法、半导体激光器反馈控制方法、光学双稳装置控制方法相比，电路较为简单，而且，简单地调节光学系统使干涉条纹宽度对应的象素数增大，即可提高系统的控制精度。
The equivalent cavity model is used to deduce the threshold condition of the ecld , and the expression of the threshold carrier density n ( v ) when ecld is tuned to oscillate at different frequencies has been obtained . using the expression of n ( v ) and the carrier dependent refractive index , the simple basic equation describing the bistable characteristics has been derived after choosing an appropriate reference frequency nf 通过建立等效腔模型来推导外腔半导体激光器的阈值条件，得到ecld在不同频率v振荡所需的阈值载流子密度n ( v )表达式，利用该表达式及相关的折射率表达式，在选择合适的参考载流子密度n _ f后，导出了一个描述双稳所需的基本方程。
