The concept of vulnerability , main sources of power system vulnerability and vulnerability index are expounded in detail . this vulnerability usually causes catastrophic consequences in power system . with the measurement and current technology , how to prevent or decrease the power system vulnerability is expounded too 介绍了电力系统安全问题、脆弱性概念和电力系统中脆弱性的主要来源,指出了电力系统的脆弱问题所造成的危害,提出了脆弱性指标,结合目前的措施和技术手段阐明如何预防或减少电力系统中脆弱性问题的发生
Our analysis shows that the heterogeneity , trend chasingthrough learning , and the interplay of noisy processes and a stable deterministicequilibrium can be the source of power - law distributed ? uctuations . statisticalanalysis based on monte carlo simulations are conducted to characterize the longmemory and volatility cluster 用基于monte - carlo模拟的统计分析来描述市场长期记忆性和波动集聚性,做了arfima模型的参数估计和( fi ) garch模型的参数估计及其相关统计检验
With the development of modern technology , especially in the field of electronics , computer application and automate control theory , motor application has been promoted from simple start - stop control and as the source of power to precise control on speed , position and torque to make driven component meet the desire requirement 随着现代技术的进步,特别是电子技术、微机应用和自动控制理论的进展,电机在其实际应用中,已由过去简单的起停控制、提供动力为目的的应用,上升到对其速度、位置、转矩等的精确控制,使被驱动的机械运动符合预想的要求。
Similar things when we get to the intellectual level , we automatically , i mean silently , understand all these and silently arrange all these or contact with some source of power which could help us to arrange these things , to better our way of life , to better our course of life 同样,一旦得到菩提的等级,我们会自动了解并处理一切事情,或是跟可以帮助我们的能源沟通,藉此来安排一切,改善我们的生活。所以生活上会减少很多意外和不舒服、不愉快的情况,因此修到第二界已经很了不起了。