mysql的行格式dynamic和dynamical
时间: 2024-04-28 08:21:21 浏览: 6
对不起,我需要更正您的问题。MySQL中的行格式有Dynamic和Compact,没有Dynamical。Dynamic行格式支持可变长度的列,可以存储更多的数据,但会占用更多的空间和CPU资源。而Compact行格式则是固定长度的,更加紧凑,但不支持可变长度的列。您可以根据具体需求来选择使用哪种行格式。
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FV3 (Finite Volume Cubed-Sphere dynamical core)的特点、优势、主要应用领域和应用前景
FV3 (Finite Volume Cubed-Sphere dynamical core)是一种用于大气环流模拟的动力核心,它的主要特点和优势包括:
1. FV3采用有限体积法进行数值模拟,能够准确地处理物理量的守恒关系,提高计算精度。
2. FV3采用了立方体球面网格,能够更好地保持地球自转的对称性,避免了极点附近的网格扭曲和计算误差。
3. FV3拥有良好的可扩展性和计算效率,能够高效地运行在各种计算设备上,包括CPU和GPU等。
FV3的主要应用领域包括大气模拟、气候预测、极端天气预警、空气质量预测等。在这些领域,FV3已经得到了广泛的应用和验证,并且在未来的发展中也具有很大的潜力。
总的来说,FV3作为一种先进的大气环流模拟工具,具有精度高、可扩展性强、计算效率高等优点,将在未来的气象预测和气候研究中发挥越来越重要的作用。
帮我地道的翻译:The differential variational inequalities ((DVIs), for short) are useful for the study of models involving both dynamics and constraints in the form of inequalities. They arise in many applications: electrical circuits with ideal diodes, Coulomb friction problems for contacting bodies, economical dynamics, dynamic traffic networks. Pang and Stewart [26], [27] established the existence, uniqueness, and Lipschitz dependence of solutions subject to boundary conditions for (DVIs) in finite dimensional spaces. Han and Pang investigated a class of differential quasi-variational inequalities in [11], and Li, Huang and O’Regan [18] studied a class of differential mixed variational inequalities in finite dimensional Well-Posedness of Differential Mixed Quasi-Variational-Inequalities 137 spaces. Gwinner [8] obtained an equivalence result between (DVIs) and projected dynamical systems. In [9] he also proved a stability property for (DVIs) by using the monotonicity method of Browder and Minty, and Mosco set convergence. Chen and Wang [4] studied dynamic Nash equilibrium problems which have the formulation of differential mixed quasi-variational inequalities. Elastoplastic contact problems can also be incorporated into (DMQVIs) formulation because general dynamic processes in the nonsmooth unilateral contact problems are governed by quasi-variational inequalities. A numerical study for nonsmooth contact problems with Tresca friction can be found in [10], Liu, Loi and Obukhovskii [19] studied the existence and global bifurcation for periodic solutions of a class of (DVIs) by using the topological degree theory for multivalued maps and the method of guiding functions. For more details about (DVIs) we refer to [3], [30], [12], [22]–[21].
差分变分不等式(DVIs)对于研究涉及动力学和不等式约束的模型非常有用。它们出现在许多应用中:带有理想二极管的电路、接触体的库仑摩擦问题、经济动力学、动态交通网络。Pang和Stewart(26,27)在有限维空间中建立了(DVIs)解的存在、唯一性和利普希茨依赖性的边界条件。Han和Pang在(11)中调查了一类差分拟变分不等式,Li、Huang和O'Regan在有限维空间中研究了一类差分混合变分不等式。Gwinner(8)得到了(DVIs)和投影动力系统之间的等价结果。在(9)中,他还通过使用Browder和Minty的单调性方法以及Mosco集收敛法证明了(DVIs)的稳定性性质。Chen和Wang(4)研究了动态Nash均衡问题,其公式为差分混合拟变分不等式。弹塑性接触问题也可以并入(DMQVIs)公式,因为非光滑单向接触问题中的一般动态过程受到拟变分不等式的控制。在(10)中可以找到Tresca摩擦下的非光滑接触问题的数值研究,Liu、Loi和Obukhovskii在(19)中使用多值映射的拓扑度理论和引导函数法研究了一类(DVIs)的周期解的存在和全局分支。关于(DVIs)的更多细节,我们可以参考(3),(30),(12),(22)-(21)。