用汇编语言来使键盘成为一个演奏音乐的电子琴。高音依次1,2,3,4,5,6,7 。中音依次为q,w,e,r,t,y,u 。低音依次为a,s,d,f,g,h,j
上传时间: 2013-12-17
上传用户:wangdean1101
Let the following relational tables be given: R = (A, B, C) and S = (D, E, F) where A, B, C, D, E, and F are the attributes (columns). Write the SQL statements that will express each of the queries given below:
标签: relational following tables given
上传时间: 2014-01-14
上传用户:cx111111
摘要: 基于单片机的控制系统已经广泛地应用在人们生活的方方面面, 其功能也越来越强大。本文介绍一种以A R M 单片机为核 心的步进电机控制系统, 该系统可在提高精度的同时降低生产成本, 是步进电机控制系统改善和提高的一条有效途径。 关键词: 控制系统 单片机 A R M 步进电机
上传时间: 2013-12-25
上传用户:R50974
Capacity of a MIMO channel with nt transmit antenna and nr recieve antenna is analyzed. The power in parallel channel (after decomposition) is distributed as water-filling algorithm
标签: antenna Capacity analyzed transmit
上传时间: 2016-07-13
上传用户:zhichenglu
替代加密: A B C D E F G H I J K L M N O P Q R S T U V W 密文 Y Z D M R N H X J L I O Q U W A C B E G F K P 明文 X Y Z T S V I HAVE A DREAM!# 密文?? 用ARM编程实现替代加密。
标签: 加密
上传时间: 2016-07-17
上传用户:qq521
Modeling and Forecasting Electricity Loads and Prices: A Statistical Approach" by Rafał Weron, published by John Wiley and Sons, 2006. Rafał Weron的大作:电网系统负荷与价格预测与建模:一种统计方法的源码
标签: Forecasting Electricity Statistical and
上传时间: 2013-11-30
上传用户:cjl42111
This programme is to control DC motor in a certain speed using PWM. The target speed is "r", it is the speed in 1s. The sample rate is 0.1s, so the actual speed target is "rc"=r/10. The "r" and "rc" are integer, and the range of "r" is from 50 to 100. Keep rc=r/10!!! The array "speed1" and "speed2" are the control result, in 0.1s and 1s. The length of "speed1" is 2400, and "speed2" is 240. The "pw" and "nw" are the parameters of PWM. The test will last 4 min.
标签: speed programme is control
上传时间: 2014-11-22
上传用户:jyycc
Behavior Analysis and Game Theory Modeling in a Peer Code Review Process - v1.doc
标签: Behavior Analysis Modeling Process
上传时间: 2016-08-19
上传用户:haohaoxuexi
The toolbox solves a variety of approximate modeling problems for linear static models. The model can be parameterized in kernel, image, or input/output form and the approximation criterion, called misfit, is a weighted norm between the given data and data that is consistent with the model. There are three main classes of functions in the toolbox: transformation functions, misfit computation functions, and approximation functions. The approximation functions derive an approximate model from data, the misfit computation functions are used for validation and comparison of models, and the transformation functions are used for deriving one model representation from another. KEYWORDS: Total least squares, generalized total least squares, software implementation.
标签: approximate The modeling problems
上传时间: 2013-12-20
上传用户:15071087253
A方向和B方向各设红(R)、黄(Y)、绿(G)和左拐(L)4盏灯,4种灯按合理的顺序亮灭,并将时间以倒计时的形式显示出来。同时要设置两个方向的紧急通道模式,当某一方向有紧急事件发生时,交警按下紧急通道按钮,该方向绿灯亮,另外一个方向红灯亮,等紧急事件解除后(假定计时10s),交通恢复原来的状态 要求在数码管上显示两个方向的灯种和计时,实现紧急情况按钮输入功能 根据交通灯控制要实现的功能,可考虑用两个并行执行的always模块(两个进程)来分别控制A和B两个方向的4盏灯。这两个always模块使用同一个时钟信号,以进行同步,也就是说,两个进程的敏感信号时同一个 每个always模块控制一个方向的4种灯按如下顺序点亮,并往复循环:绿灯-黄灯-左拐灯-黄灯-红灯,灯亮的时间由自己设定 由于板上资源有限,如觉得实现困难,可去掉左拐灯,即顺序为绿灯-黄灯-红灯。
标签: 方向
上传时间: 2016-10-07
上传用户:CHINA526