用匯編語(yǔ)言來(lái)使鍵盤成為一個(gè)演奏音樂的電子琴。高音依次1,2,3,4,5,6,7 。中音依次為q,w,e,r,t,y,u 。低音依次為a,s,d,f,g,h,j
上傳時(shí)間： 2013-12-17
上傳用戶：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:
標(biāo)簽： relational following tables given
上傳時(shí)間： 2014-01-14
上傳用戶：cx111111
摘要: 基于單片機(jī)的控制系統(tǒng)已經(jīng)廣泛地應(yīng)用在人們生活的方方面面, 其功能也越來(lái)越強(qiáng)大。本文介紹一種以A R M 單片機(jī)為核 心的步進(jìn)電機(jī)控制系統(tǒng), 該系統(tǒng)可在提高精度的同時(shí)降低生產(chǎn)成本, 是步進(jìn)電機(jī)控制系統(tǒng)改善和提高的一條有效途徑。 關(guān)鍵詞: 控制系統(tǒng) 單片機(jī) A R M 步進(jìn)電機(jī)
標(biāo)簽： 單片機(jī) 控制系統(tǒng) 步進(jìn)電機(jī) 方面
上傳時(shí)間： 2013-12-25
上傳用戶：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
標(biāo)簽： antenna Capacity analyzed transmit
上傳時(shí)間： 2016-07-13
上傳用戶：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編程實(shí)現(xiàn)替代加密。
標(biāo)簽： 加密
上傳時(shí)間： 2016-07-17
上傳用戶：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:電網(wǎng)系統(tǒng)負(fù)荷與價(jià)格預(yù)測(cè)與建模:一種統(tǒng)計(jì)方法的源碼
標(biāo)簽： Forecasting Electricity Statistical and
上傳時(shí)間： 2013-11-30
上傳用戶：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.
標(biāo)簽： speed programme is control
上傳時(shí)間： 2014-11-22
上傳用戶：jyycc
Behavior Analysis and Game Theory Modeling in a Peer Code Review Process - v1.doc
標(biāo)簽： Behavior Analysis Modeling Process
上傳時(shí)間： 2016-08-19
上傳用戶：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.
標(biāo)簽： approximate The modeling problems
上傳時(shí)間： 2013-12-20
上傳用戶：15071087253
A方向和B方向各設(shè)紅（R）、黃（Y）、綠（G）和左拐（L）4盞燈，4種燈按合理的順序亮滅，并將時(shí)間以倒計(jì)時(shí)的形式顯示出來(lái)。同時(shí)要設(shè)置兩個(gè)方向的緊急通道模式，當(dāng)某一方向有緊急事件發(fā)生時(shí)，交警按下緊急通道按鈕，該方向綠燈亮，另外一個(gè)方向紅燈亮，等緊急事件解除后（假定計(jì)時(shí)10s）,交通恢復(fù)原來(lái)的狀態(tài) 要求在數(shù)碼管上顯示兩個(gè)方向的燈種和計(jì)時(shí)，實(shí)現(xiàn)緊急情況按鈕輸入功能 根據(jù)交通燈控制要實(shí)現(xiàn)的功能，可考慮用兩個(gè)并行執(zhí)行的always模塊（兩個(gè)進(jìn)程）來(lái)分別控制A和B兩個(gè)方向的4盞燈。這兩個(gè)always模塊使用同一個(gè)時(shí)鐘信號(hào)，以進(jìn)行同步，也就是說(shuō)，兩個(gè)進(jìn)程的敏感信號(hào)時(shí)同一個(gè) 每個(gè)always模塊控制一個(gè)方向的4種燈按如下順序點(diǎn)亮，并往復(fù)循環(huán)：綠燈－黃燈－左拐燈－黃燈－紅燈，燈亮的時(shí)間由自己設(shè)定 由于板上資源有限，如覺得實(shí)現(xiàn)困難，可去掉左拐燈，即順序?yàn)榫G燈－黃燈－紅燈。
標(biāo)簽： 方向
上傳時(shí)間： 2016-10-07
上傳用戶：CHINA526
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