优化系统结构,使信息和物质流在结构内的流动更畅通. 构造定律(constructal law) 由Adrian Bejan于1995创立的构造定律(constructal law): For a finite-size system to persist in time (to live), it must evolve in such a way that it provides easier access to the imposed currents that flow through…
package DateTest; import java.util.Date; public class Date1 { public static void main(String[] args){ Date d=new Date(); System.out.println(d); Date d2=new Date(); System.out.println(d2.getTime()); System.out.println(d2.after(d)); //日期处理使用Canlendar日期…
1队列理论 1.1队列在生活中随处可见,例如排队买票,排队打饭,排队做地铁等等.那将诸如此类的队列抽象一下,可归纳为一下5要术: 到达过程arrival process 服务时间的分布 service time distrubution 服务器数量 number of server 等待的位置 waiting positions 总排队人数 population size 1.2根据kendall notation标记法,可根据队列的几要素将其分类 A:Arrival process 到达率的分…