对称不稳定,Symmetric instability
1)Symmetric instability对称不稳定
1.Advances in synoptic analysis and application of symmetric instability theory对称不稳定理论的天气分析与预报应用研究进展
2.The results show that the existence of the maximum of inertial stability in the left front of the low level jet is favorable to the accumulation of moist thermal energy and that the conditional symmetric instability or convective instability can be expected in this region.通过对低空西南急流左前方和高空偏北大风轴右后方的惯性稳定性和对称稳定性的理论分析和实例计算 ,表明 :低空急流左前方惯性稳定度大值区的存在 ,有利于低层湿热能量的积累 ,使低层倾斜对流的不稳定发展更多期望于条件性对称不稳定或对流不稳定 ;高空偏北大风轴 (西风急流 )的存在 ,是其右后方 (右侧 )出现对称不稳定的有利条件 ,高空相对容易出现干对称不稳定 ;惯性稳定性的作用 ,使低层的倾斜对流更偏向于垂直方向 ,有利于对流发展 ,使高层的倾斜对流更偏向于水平方向 ,有利于高层辐散。
3.The dynamic stability of meso-scale symmetric perturbation is discussed in terms of two-dimensional fluid-dynamics equations under anelastic approximation,which obtains the criterion of symmetric instability in an adiabatic case.采用滞弹性近似下的二维流体动力学方程组 ,讨论了中尺度对称扰动的动力稳定性 ,得到其绝热情况下对称不稳定的判据条件。
英文短句/例句
1.Research on Linear and Nonlinear Mesoscale Symmetric Instability Theory;线性和非线性中尺度对称不稳定性研究
2.The nonlinear subcritical symmetric instability belongs to mesoscale dynamics.非线性亚临界对称不稳定属于中尺度非线性动力学范畴。
3.A Theory on General Nonlinear Subcritical Moist Symmetrical Instability and Numerical Simulation;广义非线性亚临界湿对称不稳定的理论研究和数值模拟
4.The Statistic and Diagnostic Analysis of MeiYu Storm Rainfall and the Fringe Study of Subcritical Symmetric Instability;梅雨暴雨的统计诊断分析和亚临界对称不稳定的初步研究
5.Advances in synoptic analysis and application of symmetric instability theory对称不稳定理论的天气分析与预报应用研究进展
6.Analysis of Spatial-Temporal Structures and Nonlinear Subcritical Symmetric Instability in a Heavy Rainstorm in North Jiangsu一次梅雨期苏北大暴雨的时空结构及其非线性亚临界对称不稳定
7.Asymmetric Information,Institutional Holding and the Price Volatility信息不对称、机构持股与价格稳定性
8.half-symmtric unstable resonator半对称非稳定谐振腔
9.Axisymmetric Pulsational Instabilities in Weakly Magnetized and Isothermal Accretion Disks弱磁化等温薄吸积盘的轴对称脉动不稳定性
10.The Axisymmetric Pulsational Instability in Weakly Magnetized Accretion Disks with Viscosity含粘滞的弱磁化吸积盘的轴对称脉动不稳定性
11.Effects of Magnetic Fields, Viscosity, and Nonaxisymmetry on Gravitational Instability in Protoplanetary Disks磁场、粘性和非轴对称性对原行星盘引力不稳定性的影响
12.Influences of Reactance-Type Fault Current Limiter on Power System Transient Stability With Asymmetrical Short-Circuit Faults不对称短路时电抗型故障限流器对暂态稳定性的影响
13.Numerical Simulation of Line-Tied Instability on Magnetic Confinement Plasma in Symmetrical Cylindrical Geometry;柱对称磁约束等离子体Line-Tied不稳定性的数值模拟
14.The Analysis of the Non-axisymmetric Instability of Accretion Disk Ⅱ. Gas Pressure Domination非轴对称的吸积盘的不稳定性分析Ⅱ.气压为主要压力
15.The Analysis of the Non-axisymmetric Instability of Accretion Disk I.Radiation Pressure Domination非轴对称的吸积盘的不稳定性分析Ⅰ辐射压为主要压力
16.These are more commonly described as the "labile"metal concentrations.这些通常称之为“不稳定”金属浓度。
17.Stability Analysis of Similar Symmetry Singular Large-scale Combined Systems;拟对称组合广义大系统的稳定性分析
18.On Littlewood s Boundedness Problem for Asymmetric Duffing Equation;一类非对称Duffing方程的Lagrange稳定性
相关短句/例句
Symmetry instability对称不稳定
1.In this paper, a modified symmetry instability criterion for thermal wind non equilibrium basic flow is deduced by using two dimensional liner equations with Boussinesq approximation of moist air.从湿大气的绝热、无粘、包辛内斯克近似的二维线性化方程组出发 ,考虑基本气流热成风不平衡 ,在经典的对称不稳定理论基础上推导出修正了的对称不稳定判据 ,发现基流热成风不平衡在一定条件下有利于对称不稳定发展。
3)convective-symmetric instability对流对称不稳定
1.Using the results of a sensitivity numerical simulation,the evolution and circulation feature ofconvective-symmetric instability is studied in this paper.利用1999年6月一次典型梅雨锋暴雨过程和敏感性试验的数值模拟结果分析了对流对称不稳定的发展演变和环流特征。
2.Because of the interaction between the condition instability at low level and the condition-symmetric instability at middle layer,theconvective-symmetric instability develops.结果表明:台风东南急流在温州附近冷区边缘处低层受地形影响发生强烈辐合引起的垂直上升运动和冷暖空气相汇产生的对流不稳定性是台风环流内中尺度对流系统的主要形成机制;对流系统在暖湿空气和冷空气中心交汇处发展,西北侧的冷空气堆迫使暖湿东南气流沿西北倾斜的等熵面爬升,有利于倾斜对流系统的发展;低层条件不稳定区与中层条件对称不稳定区叠加,产生对流对称不稳定,在湿等熵面倾斜引起的涡旋发展的强迫机制下在中层产生范围较广的倾斜上升对流;由于等熵面的倾斜,大气水平风垂直切变或湿斜压性增加,进一步加强涡度的发展,使得对流系统向西北方向发展;另外,源于东南沿海,由台风东南气流输送的水汽为特大暴雨的产生提供了有利的热力条件。
4)convective symmetric instability对流-对称不稳定
5)conditional symmetric instability条件对称不稳定
1.Based on FY-2 infrared images and the reanalysis data for six hours of NCEP(1°×1°),the heavy dust storm process occurred on 13 April in the middle west part of Hexi corridor is analyzed,particularly the cloud head of the descending jet was tracked and the gravitational instability,conditional symmetric instability and conditional instability are diagnosed in detail.用风云2号卫星红外云图对下沉急流云头进行跟踪,并用NCEP(1°×1°)6h再分析数据对高速下沉急流到达冷锋云带前后的静力不稳定、条件不稳定、条件对称不稳定等进行了诊断分析。
6)moist symmetry instability(MSI)湿对称不稳定
延伸阅读
对称与非对称反映客观事物在结构、功能、时空上的特殊联系的范畴。对称指事物以一定的中介进行某种变化时出现的不变性，非对称指事物以一定的中介进行某种变化时出现的可变性。在自然界中普遍存在，形式多样。对称有空间对称(包括形象对称和结构对称)、时间对称、概念对称等。
