大尺度系统

本文通过构造Lyapunov泛函及应用大尺度系统的分解分法，研究某一类非线性延滞大尺度系统的稳定性，并获得了容易验证的代数充分判据。

By constructing Lyapunov functionals and using the methods of decomposition of large scale system , we study the stability of a certain nonlinear delay large-scale system in this paper , and obtain some easy verifiable algebraic sufficient criteria .

数值模拟结果表明：（1）北京地区的气象环境很复杂，其主要特点是受昼夜循环的山谷风气流、城市热岛环流以及大尺度系统共同影响。

The results show : ( 1 ) The meteorological environment over the Beijing area is complex , which is controlled mainly by the combined influence of the mountain valley wind circulation cycling day and night , the urban heat island circulation , and large scale system .

本文从大尺度天气系统配置、卫星云图和中尺度数值模式计算结果分析了DOUG气旋内区和外区非对称结构的成因和演变。

This paper analyses the cause and evolution of the inner and outer asymmetric structures .

从而影响着高原和周边地区的环流以及亚洲季风区大尺度环流系统。

The atmospheric circulation over the TP and the Asian monsoon area is therefore affected .

长江以北夏季气温分布受地形影响显著。最高气温分布具有良好的空间一致性，主要受大尺度天气系统影响；

The spatial distribution of maximum temperature is controlled by the large scale system , such as the sub-tropical high .

较小尺度生态系统健康的评价更多采用生态学指标，大尺度生态系统健康的评价则注重整体性评价。

In general , most of smaller ecosystem health evaluation adopts ecology index and bigger ecosystem health evaluation lays stress on the integrity .

从大尺度构造系统上认识松辽盆地，有助于全面审视和重新评价油气成藏的展布规律。

Recognizing Songliao basin from tectonic system in a big scale , is helpful to scan and newly evaluate the rule of oil-gas storage .

台风复杂路径转折点的地理位置与大尺度环流系统的月平均位置有一定的对应关系。

There are some evidences indicating fair correspondences between the geographic distribution of the bending points in complicated typhoon tracks and the monthly mean position of large-scale circulation systems .

结果表明：在东北冷涡和西太平洋副热带高压两大天气尺度系统的作用下，西南低空急流的再次加强和中低层切变线共同作用是此次大暴雨过程的主要原因。

The results indicate that under the favorable weather background , it is caused by the strengthening again of the southwest low level jet and the movement of the low level shear line .

对资源和环境的保护要优于开发，生态安全的维护是长周期、大尺度的系统工程，因而长期积累下来的历史经验具有不可替代的特殊价值。

Resources and environmental protection is superior to the development , maintenance of ecological security is a long period , large-scale systems engineering , and thus long-term historical experience accumulated an irreplaceable special value .

诊断分析表明，高空低槽产生的冷锋云系发展东移是产生此次暴雨天气过程的主要大尺度天气系统，由高空槽诱发产生的中尺度涡旋是产生此次暴雨天气的主要中尺度系统。

The diagnostic analysis results show that the moving cold-front cloud system produced by a high-level trough is the main synoptic system of this rainstorm , and a meso-vortex produced by the trough is the main mesoscale system .

湍能收支分析表明在边界层之上的风切变产生项很强，即大尺度天气系统有利于斜压对流边界层的发展，边界层内各量充分混合。

It is shown by the analyses of turbulent characteristics of front-al baroclinic boundary-layer that the vertical shear ( WV ) above the boundary layer was very large , and the pumping of the strong wind shear in turbulent energy budget made the characteristic variables within the PBL well mixed .

暖区区域性大暴雨中尺度系统发生发展的研究

A study on the occurrence and development of extremely heavy rain mesoscale system in warm region

设计了水下线结构大尺度三维测量系统和控制软件。

An underwater structured light large-scale 3-D detection system and the control software of the system is designed .

金融市场是一个大尺度的复杂性系统。在金融市场的演化过程中，一直在产生着大量的高频数据，因而金融市场的演化过程也是一个连续变化的动力学过程。

A financial market is a large-scale ' complex system ' which continuously generates an enormous amount of high-frequency data series , and consequently evolves dynamically .

开发船模运动视景仿真系统，用于试验时实时监测和试验后分析研究船模运动的物理特征；4.进行大尺度模型试验系统调试测试试验，分析试验结果。

Develop the scene simulation system , which is used to monitor the motion of the model during experiment and analyze the result after experiment . 4 .

揭示了中低纬度地区天气尺度乃至更大尺度系云系统的相互作用，是引起强暴雨过程的重要条件。

It is revealed that the interaction among the cloud systems of synoptic scales even larger scales over the middle or lower latitude areas is very important condition .

通过研究混沌尺度与混合效率之间的关系，得到大尺度混沌电场系统能够有效提升混合效率的结论。

And based on the research of relations between the chaotic scale and mixing efficiency , our findings indicate that the large scale chaos electric field system can effectively improve the efficiency of mixing . 3 .

最后对SOC的判据进行了讨论，认为系统组构特征具有分形特性是大尺度非均匀沙系统呈现SOC的必要条件。

A discussion about the criterion of SOC shows that the fractal fabric characteristics of a system is the necessary condition for SOC of large-dimension granular mixtures .

8.25曲靖突发局地大暴雨的中尺度系统特征分析和数值模拟

An analysis of mesoscale system and numerical simulation on the ocurrence cause of a locally sudden torrential rain in Qujing area on 25 August

MM5模式能够很好地再现辽东半岛大暴雨的大、中尺度环流系统。

MM5 model can well reappeared the large scale and mesoscale circumfluence systems of LiaoDong Peninsula heavy rainstorm .