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M
说明: MATLAB平台下图像处理实验教学软件的实现研究(Image processing in MATLAB platform of experimental teaching software implementations)
- 2013-03-08 11:06:01下载
- 积分:1
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Linux下USB驱动模块SCSI通信协议
Linux环境下的USB驱动模块 源码包,可以直接make编译生成ko文件。
- 2022-07-27 05:58:33下载
- 积分:1
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liu
一.问题描述
对2006年度全国80多个城市的每天空气质量状况进行查询、排序等操作。
空气质量状况对象包括城市代码、城市名称、首要污染物、污染指数、污染物级别、空气状况、年、月、日
二、实验要求
1. 普通查询:输入城市名称和城市代码,分别查询该城市每天、每周、每月、每季度和全年的空气质量状况
例子:查询太原市2006年第8周的空气质量状况
2.统计查询:
(1)输入城市名称和城市代码,分别查询该城市每周、每月、每季度和全年的空气质量为优、良、轻微污染、轻度污染、重污染的天数
例子:查询石家庄市2006年第2季度空气质量为轻微污染的总天数
(2)根据时间查询空气质量状况:输入周编号、月编号、季度编号或年编号,以及空气质量为优、良、轻微污染、轻度污染、重污染的天数,查找相应的城市名称
例子:查询2006年5月,空气被轻度污染3天以上的城市有哪些?
3.排序查询
(1)输入周编号、月编号、季度编号或年编号,查询城市空气质量的排行榜
例子:查询2006年第6周,全国空气平均质量最好的前20个城市为哪些?
三、数据文件
Data.txt(one. Problem Description of the air quality day in 2006 more than 80 cities nationwide query, sorting and other operations. Air Quality objects include city code, city name, the primary pollutant, pollution index, contaminant level, air condition, year, month, day two, experimental requirements 1. General Queries: Enter a city name and city codes, each query in the city daily, weekly, monthly, quarterly example air quality and full year: Queries air quality in Taiyuan first eight weeks of 2006 2. Statistical inquiry: (1) enter a city name and city codes, each query in the city weekly, monthly, quarterly and annual air quality as excellent, good, slight pollution, light pollution, heavy pollution days example: inquiry Shijiazhuang City in 2006 second quarter, the air quality is the total number of days a slight pollution (2) according to time of the query air quality conditions: enter the week number, month number, quarter number or in number, and the air quality is excellent, good, sli)
- 2017-04-07 10:58:37下载
- 积分:1
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pid控制代码
串级PID算法的c语言实现。PID控制是最常见,应用最为广泛的自动反馈系统。PID控制器由偏差的比例(P,Proportional)、积分(I,Integral)和微分(D,Derivative)来对被控对象进行控制。这里的积分或微分,都是偏差对时间的积分或微分。稳定性(P和I降低系统稳定性,D提高系统稳定性):在平衡状态下,系统受到某个干扰后,经过一段时间其被控量可以达到某一稳定状态;准确性(P和I提高稳态精度,D无作用):系统处于稳态时,其稳态误差(Steady-state error);快速性(P和D提高响应速度,I降低响应速度):系统对动态响应的要求。一般由过渡时间的长短来衡量。
- 2022-07-01 20:24:58下载
- 积分:1
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ECG-acquisition
stc12c5a60s2单片机采集心电传感器的电压信号,并在lcd12864上显示心电数字。 误差特别小。(A voltage signal STC12C5A60S2 singlechip collects the ECG sensor, and display of ECG digital in lcd12864. Especially small error.)
- 2014-11-01 17:25:45下载
- 积分:1
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ipmsg_1.tar
实现了局域网中各个IP间的添加好友、好友上下线通知、聊天、传送文件、接收文件等功能。(The add friends, friends all IP LAN chat on line, notice, file transfer, receiving files and other functions.)
- 2013-09-07 17:13:26下载
- 积分:1
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elgamal
c++实现elgamal非对称密码加解密(C++ implementation of asymmetric encryption and decryption of ElGamal)
- 2021-04-19 18:08:50下载
- 积分:1
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74HC595
将每2片74595做级联,然后再将级联之后的所有时钟线与数据再并联在一起最后对每一组的锁存控制线做单独控制.(Application to do a project, the more I/O, applied to the 74,595 to do the extension, but you want to mount multi-chip 74595, is bound to have a lot to use the I/O port, in order to solve this problem, I will be every 2 sheet 74595 do cascade, and then cascade after all the clock line and the data in parallel and then together (i.e., all 74595 communal clock and data lines, it only occupies two I/O port lines) Finally, for each group latch control lines do individually controlled (equivalent to Chip Select), so that a hardware circuit by a great degree of simplification, both procedures can also share a driving subroutine 74595, to control the type of lock inventory control line, serial data is sent to the port 74595 cascade module. As a result of the hardware and software have a large degree of optimization.)
- 2013-05-14 09:15:54下载
- 积分:1
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原型模式简历04
说明: kongzhitai timer c# visual studio
- 2020-06-24 12:40:02下载
- 积分:1
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VLCDemo
MFC调用VLC的动态库libvlc.dll实现简单播放器,支持播放、暂停、停止、进度显示和进度控制、声音控制、支持中文路径的文件名字。VC6.0环境,可直接运行。(MFC calls VLC dynamic library libvlc.dll simple player, play, pause, stop, schedule display and schedule control, sound control, support Chinese path of the file name. VC6.0 environment, can be directly run.)
- 2013-07-15 09:41:10下载
- 积分:1