-
3zuoye
某市有一码头,每次仅容一辆船停泊装卸货,由于经常有船等候进港,部分人提出要扩建码头。经过调查历史资料发现,码头平均每月停船24艘,每艘船的停泊时间为24±20小时,相邻两艘船的到达时间间隔为30±15小时,如果一艘船因有船在港而等候1小时,其消耗成本为1000元。经预算,扩建码头大约需要1350万元,故市长决策如下:如果未来五年内停泊船只因等候的成本消耗总和超过扩建码头花费则扩建码头,否则,不予扩建。因此,希望你能够帮助市长做出决策。此问题已知到达的大概时间和大概停泊时间,对于此问题用概率统计的方法来做比较复杂,可用程序随机产生到达时间和停泊时间来模拟未来五年内船的停泊,多次模拟预测停泊情况,以做出决策(。-Problem in a city with a terminal expansion dock, each only allow a boat moored loading and unloading, as often there are waiting boat into port, some people proposed to expand pier. Terminal stopping 24 per month, per vessel berthing time of 24 ± 20 hours, the arrival of two adjacent vessels interval 30 ± 15 hours, if a ship due to boat in the harbor while waiting for one hour, and its consumption cost of 1,000 yuan. The budget of about 13.5 million yuan expansion dock, so the mayor decision as follows: If a ship is moored next five years, the cost of waiting more than the sum of consumption spending is expanding marina pier extension, otherwise, not expanded.)
- 2015-04-17 18:59:46下载
- 积分:1
-
EOF
一个方便实用的进行EOF程序,可对数据分析出相应的模态(and eigenvalues V. The most effecient algorithm proposed by von Storch and Hannostock (1984) is used.)
- 2014-11-27 22:55:21下载
- 积分:1
-
基础的地震波正演模拟程序 seismic-forward
地球物理勘探中,基础的地震波正演模拟程序,包括五个正演程序,(高阶中心差分,高阶交错网格差分,使用标准的PML边界的正演程序)在acou文件夹下附有运行的结果。(Geophysical exploration, based on the seismic forward modeling program, including the five forward procedure, (higher-order central difference, higher order differential staggered grid, using standard PML boundaries forward procedure) in a file folder with acou results of operations.)
- 2020-06-29 00:20:02下载
- 积分:1
-
usingMatlab
matlab 的应用指南,包括基础讲义,以及一些应用,适合各个程度的人。(matlab application guidelines, including the basis for lectures, as well as some applications, suitable for all levels of people.)
- 2009-07-13 09:11:49下载
- 积分:1
-
soru2bandpass
Bandpass filter simulation analog communication
- 2011-09-10 15:39:33下载
- 积分:1
-
zheji
地震褶积模型,最简单的抛物线,可以在修改增加内容(seismic conv models)
- 2015-01-10 11:18:15下载
- 积分:1
-
Multi-sensor-data-fusion
杨万海《多传感器数据融合》P44页算法的具体实现,在MATLAB运行(Yang Wanhai" P44" page of multi sensor data fusion algorithm in the concrete realization, in the MATLAB run)
- 2012-03-29 13:51:24下载
- 积分:1
-
MATLAB_vc_hybrid
介绍了matlab与vc的混合编程,和常见问题解决方案(Introduces MATLAB and VC mixed programming, and common problems and Solutions)
- 2012-05-07 13:45:27下载
- 积分:1
-
CrankNicolson_origin
使用Crank-Nicolson隐式差分格式求解传热方程;第一类边界条件;初始条件已知。(Using the Crank-Nicolson implicit difference scheme for solving heat transfer equation the first boundary condition initial conditions are known.)
- 2015-03-17 10:29:51下载
- 积分:1
-
InsProDisk.Partial.Src
InsProDisk.Partial.Src.rar 一个虚拟硬盘的源代码,用户级别的(InsProDisk.Partial.Src.rar a virtual hard disk source code user level)
- 2006-11-04 00:23:43下载
- 积分:1