| 1. | Pseudo - 120d variations in length - of - day from 1950 - 2003 with el nino 2003年日长近120天准周期振荡和厄尔尼诺现象 |
| 2. | Quasi - periodic vibration 准周期振动 |
| 3. | We study some classical questions in one or two dimensions nonlinear systems 首先,研究了声波在一维准周期系统中的传播问题。 |
| 4. | Research on gain of doped photonic crystal fiber with raman amplification of soliton 准周期结构一维光子晶体的带隙特性与滤波特性 |
| 5. | Study of the band gap and polarization properties of 1d photonic crystal with a quasi - periodic structrue 准周期结构一维光子晶体的带隙结构及偏振特性 |
| 6. | It can be inferred that the fractional dimension values are closely dependent on the erosional intensities , and it can be a very important parameter for dynamic geomorphological researches 隆起区分维值所表现出一般特点是大于1 . 5的类似于准周期运动的负反馈机制。侵蚀作用的强度越大。 |
| 7. | In recent years , there are more interests in the studies of quasiperiodic structures , such as fibonacci modek general fibonacci modek pd ( period - doubling ) and tm ( thue - morse ) model 研究最广泛的一维准周期和非周期系统有fibonacci模型、广义fibonacci模型、 thue - morse模型和period - doubling模型等。 |
| 8. | Re = 200 is just beyond the critical reynolds number of mode a . the numerical results of the present paper indicate that the near wake at this supercritical reynolds number is in three - dimensional quasi - periodic laminar state with transitional behaviors Re = 200是刚超过模式a的临界雷诺数,计算结果表明,此时近尾迹流场处于三维准周期层流状态。 |
| 9. | In this thesis , the main contents are following : 1 . reviewing the theory of nonlinear frequency conversion . quasi - phase - matching is discused . presenting the method for configuring periodically poled as well as multiple period superlattice 阐述了非线性频率变换的原理,讨论了相位匹配和准相位匹配技术,着重说明了周期和准周期光学超晶格的工作原理。 |
| 10. | In this paper , we have studied the transmission of a plane wave through a 1d quasiperiodic or aperiodic chain by numerical method . moreover the heat conduction for these chains is calculated . it is found that the heat flux j ~ n - 1 ( 0 . 5 < < 1 ) , and depends on the on - site potentials 本文首先用数值方法,计算了各种频率的平面波通过以上几种典型的一维准周期和非周期链的透射系数,并据此研究了这几种一维准周期和非周期链的热通量j与粒子数n之间的关系,得出j n ~ ( a - 1 ) , 0 . 5 1 ,与系统中在位势的大小有关,并与其他系统的结果作了比较。 |