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- By aid of the monotone iteration technique and the upper and lower solutions method, the existence of travelling wave fronts is established for a single species population model with stage structure and distributed maturation delay. 利用单调迭代和上下解方法证明了一类具有分布成熟时间和阶段结构的单物种种群模型的波前解的存在性.
- Travelling wave front 波前解
- Travelling wave fronts in a single species population model with stage structure 具有阶段结构的单物种种群模型的波前解
- Electro-optic effect on stripline travelling wave Pockels cell[J]. 引用该论文 肖纲要;何慧娟;刘玉璞;张影华;王之江.
- At each interface the spreading wave front is made discontinuous. 在每一分界面上扩展的波前出现间断。
- Keywords Reaction-diffusion equations;nonlocal delay;traveling wave front;entire solution;bistable nonlinearity;monostable nonlinearity;advection;spreading speed; 反应扩散方程;非局部时滞;波前解;整体解;双稳型非线性项;单稳型非线性项;对流;渐近传播速度;
- travelling wave fronts 波前解
- It starts with zero and grows to a maximum slightly behind the wave front. 它从零值开始,并在稍后于波阵面处增长到最大值。
- While waveform criterion is presented based on the duration time of inceptive travelling wave. 而根据初始行波波头持续时间的长短可以构成波形判据。
- Traveling wave front 波前解
- The radii are proportional to the time which has elapsed since the wave front occupied the position wi. 半径与波前占据wi位置以来能经过的时间成正比。
- This assumption is reasonably justified in the early stages, when the wave front is not far from ground zero. 这种假定在初期阶段波阵面离地面零点不远时是相当合理的。
- The travelling wave propagation under different type of faults in transmission line is analyzed, its results are useful for travelling wave protection and fault location. 对输电线不同短路故障类型情况下的行波传播特点进行了分析研究。研究结果对利用行波特点来进行行波保护和故障测距都是非常有用的。
- If a refraction or a reflecting body is irreqular, the wave front undergoes a deformation. 如果折射体或反射体是不规则的,波前即产生变形。
- The principle of directional protective relaying based on wavelet transform for detection of fault information and amplitude com parison of travelling wave is presented. 以小波变换为工具提取故障后的行波信息,并通过小波变换实现行波幅值比较式方向保护。
- The positive and negative travelling wave solitons are predicted in photorefractive crystal biased by positive electric field in the low intensity regime. 利用行波变换法,推导出有正偏压光折变晶体中小振幅光波的行波正、负孤子解,证明在有正偏压光折变晶体中存在着正、负行波孤子;
- The planes of the wave front and the reflecting surface are also normal to the plane of the figure. 波阵面的诸平面与反射面都与图面垂直。
- A new approach using scalogram of wavelet transform for travelling wave transient signal detection, under noise free condition or noise condition separately, was described. 摘要介绍小波变换定义、性质和时间尺度分析,研究小波变换的尺度谱检测无噪声和有噪声条件下的行波暂态信号的能力。
- If a refraction or a reflecting body is irregular, the wave front undergoes a deformation. 如果折射体或反射体是不规则的,波前即产生变形。
- Successive wave fronts in this case form a series of concentric spheres. 相继波前形成了一系列的同心球面。