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一个用DELPHI编的酒店管理系统。 其中数据库:SQL Server2000, 只需恢复 My database文件夹中 My database_Data.M...
一个用DELPHI编的酒店管理系统。 其中数据库:SQL Server2000, 只需恢复 My database文件夹中 My database_Data.MDF和 My database_Log.LDF到SQL中即可使用, 不错的,试一试有很多功能-DELPHI series with a hotel management system. These databases : SQL Server 2000, only to resume My database file folders and My My database_Data.MDF database_Log.LDF to SQL can be used well, to test the many functional
- 2022-12-28 12:00:03下载
- 积分:1
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In order to obtain the required source files, please do not care. This is a simp...
为了得到需要的源文件,请大家不要在意。这是一个简单的vrml源文件。-In order to obtain the required source files, please do not care. This is a simple vrml source files.
- 2022-02-13 12:05:39下载
- 积分:1
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Universal Serial Bus (USB) is a communications architecture that gives a persona...
Universal Serial Bus (USB) is a communications architecture that gives a personal
computer (PC) the ability to interconnect a variety of devices using a simple four-
wire cable. The USB is actually a two-wire serial communication link that runs at
either 1.5 or 12 megabits per second (mbs). USB protocols can configure devices
at startup or when they are plugged in at run time. These devices are broken into
various device classes. Each device class defines the common behavior and
protocols for devices that serve similar functions. Some examples of USB device
classes are shown in the following table
- 2022-07-25 07:02:30下载
- 积分:1
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C++实现查看电脑CPU型号信息的源码
// Test_cpu.cpp : 定义控制台应用程序的入口点。
//
//=====================================================================================
/* CPUID指令是intel IA32架构下获得CPU信息的汇编指令,
可以得到CPU类型,型号,制造商信息,商标信息,序列号,
缓存等一系列CPU相关的东西。
*/
//#include "stdafx.h"
#include
- 2023-03-08 22:35:03下载
- 积分:1
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中国象棋游戏,是基于网络游戏的网络游戏,无需…
中国象棋游戏,该游戏是基于WEB的在线WEB游戏,无需安装任何软件,只要浏览器,便可运行-Chinese Chess Game, which is based on the WEB Games WEB Games online, no need to install any software, as long as the browser, can run
- 2023-05-25 20:25:03下载
- 积分:1
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HFSS 高低阻抗滤波器 5节,可调参数,优化
HFSS 高低阻抗滤波器 5节,可调参数,优化-HFSS high and low impedance filter 5, adjustable parameters, optimization
- 2023-05-30 14:40:02下载
- 积分:1
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在线测试系统
新东方www.getjob.com.cn
在线考试系统 不错
在线测试系统
新东方www.getjob.com.cn
在线考试系统 不错-new online testing system Oriental www.getjob.com.cn online examination system is good
- 2022-08-09 10:07:46下载
- 积分:1
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c 语言代码,
欢迎入门单片机的参考,
温度传感器程序代码...
c 语言代码,
欢迎入门单片机的参考,
温度传感器程序代码-c language code, please refer to SCM entry, the temperature sensor code
- 2023-08-06 07:35:03下载
- 积分:1
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文本比较器,可实现两个文本的比较,比如文本文档
文本比较器,可实现两个文本的比较,比如文本文档-Comparators text, the text can be compared both
- 2022-05-07 17:38:44下载
- 积分:1
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牛顿-拉夫逊法潮流计算
基本步骤:
(1)形成节点导纳矩阵
(2)将各节点电压设初值U,
(3)将节点初值代入相关...
牛顿-拉夫逊法潮流计算
基本步骤:
(1)形成节点导纳矩阵
(2)将各节点电压设初值U,
(3)将节点初值代入相关求式,求出修正方程式的常数项向量
(4)将节点电压初值代入求式,求出雅可比矩阵元素
(5)求解修正方程,求修正向量
(6)求取节点电压的新值
(7)检查是否收敛,如不收敛,则以各节点电压的新值作为初值自第3步重新开始进行狭义次迭代,否则转入下一步
(8)计算支路功率分布,PV节点无功功率和平衡节点柱入功率。-Newton-Raphson method flow calculation basic steps : (1) formation of nodal admittance matrix (2) to set up the initial node voltage U, (3) the initial node-generation-related demand. calculated that the constant term formula Vector (4) nodes will be incorporated into the initial voltage-seeking, calculated Jacobian matrix elements (5) solving that equation, seek to amend the vector (6) to strike a new node voltage value (7) to check whether convergence, if not restrained. concentrated in the nodes of the new voltage as the initial value since the first three steps to re-start the narrow iterations. Otherwise, turn into the next (8) Calculation branch power distribution, PV nodes reactive power and balance-node into powe
- 2022-06-02 03:02:29下载
- 积分:1