注塑機生產(chǎn)過程的微機控制系統(tǒng)設(shè)計本系統(tǒng)設(shè)計是通過8255A并行端口A、B傳輸數(shù)據(jù)控制12個LED發(fā)光二級管的亮滅來模擬控制兩臺注塑機的生產(chǎn)過程。其中端口A和B分別對應(yīng)1號和2號注塑機,每一個LED代表一個工序。編程語言采用BORLAND C++語言。
標簽: 8255A 注塑機 LED 生產(chǎn)過程
上傳時間: 2013-12-25
上傳用戶:葉山豪
A. 產(chǎn)生一個長為1000的二進制隨機序列,“0”的概率為0.8,”1”的概率為0.2;B. 對上述數(shù)據(jù)進行歸零AMI編碼,脈沖寬度為符號寬度的50%,波形采樣率為符號率的8倍,畫出前20個符號對應(yīng)的波形(同時給出前20位信源序列);C. 改用HDB3碼,畫出前20個符號對應(yīng)的波形;D. 改用密勒碼,畫出前20個符號對應(yīng)的波形;E. 分別對上述1000個符號的波形進行功率譜估計,畫出功率譜;F. 改變信源“0”的概率,觀察AMI碼的功率譜變化情況;
上傳時間: 2015-03-16
上傳用戶:Altman
本文檔描述了無需證書撤消列表就可以決定一張數(shù)字證書當前狀態(tài)的協(xié)議。 第二章中有協(xié)議的概述。功能必要條件在第三章中有詳細描述。第四章是具體協(xié)議。第 五章我們將討論一些和協(xié)議有關(guān)的安全問題。附錄A定義了在HTTP之上的OCSP,附 錄B有ASN.1的語義元素,附錄C詳細描述了信息的mime類型。
上傳時間: 2013-12-21
上傳用戶:417313137
Locally weighted polynomial regression LWPR is a popular instance based al gorithm for learning continuous non linear mappings For more than two or three in puts and for more than a few thousand dat apoints the computational expense of pre dictions is daunting We discuss drawbacks with previous approaches to dealing with this problem
標簽: polynomial regression weighted instance
上傳時間: 2013-11-28
上傳用戶:sunjet
Overview In this chapter I introduce Borland C++Builder (BCB) and explain what it is about. I also devote considerable time to explaining the purpose of this book and the philosophy behind my approach to technical writing. Technical subjects covered in this chapter include Creating a simple Multimedia RAD program that plays movies, WAV files, and MIDI files. Shutting down the BCB RAD programming tools and writing raw Windows API code instead. Creating components dynamically on the heap at runtime. Setting up event handlers (closures) dynamically at runtime. A brief introduction to using exceptions. This topic is covered in more depth in Chapter 5, "Exceptions." A brief introduction to ANSI strings. This subject is covered in more depth in Chapter 3, "C++Builder and the VCL." Using the online help. Greping through the include and source files that come with the product and with this book.
標簽: introduce Overview Borland Builder
上傳時間: 2014-01-04
上傳用戶:小鵬
UnZip is a small zipfile extract utility. It is written to be assmall portable as possible and is intended to be starting point for im-plementation of .ZIP files in non-IBM environments.Source code is provided in C and Turbo Pascal. If you port this programto a non-IBM system, I would appreciate a copy of the ported source andexe files.
標簽: is portable possible extract
上傳時間: 2014-01-20
上傳用戶:維子哥哥
RSA MD5 VISUAL C++ SOURCE CODE v1.2 - Visual C++ implementation of the RSA MD5 message digest algorithm. Calculates a 32byte checksum for any data sequence. Developed by Langfine Ltd. Note, RSA copyright notices must be adhered to - see the source code for details.Released November 2001
標簽: implementation RSA MD5 message
上傳時間: 2015-03-23
上傳用戶:saharawalker
java ejb開發(fā) 程序4、語句alter table people add(phone_number varchar2(10)) 的作用是 A 修改表結(jié)構(gòu) B 為people表添加約束,約束名稱是phone_number C 向people表中添加一列,名稱是phone_number,數(shù)據(jù)類型是varchar2,長度是10 D 上述答案均不正確 5、( )BLOB和CLOB的區(qū)別在于 A CLOB只能存放字符類型的數(shù)據(jù),而BLOB沒有任何限制 B BLOB只能存放字符類型的數(shù)據(jù),而CLOB沒有任何限制 C CLOB只能存放小于4000字節(jié)的數(shù)據(jù),而BLOB可以存放大于4000字節(jié)的數(shù)據(jù) D BLOB只能存放小于4000字節(jié)的數(shù)據(jù),而CLOB可以存放大于4000字節(jié)的數(shù)據(jù) 6、存儲過程從本質(zhì)上來講就是 A 匿名的PL/SQL程序塊,它可以被賦予參數(shù) B 命名的PL/SQL程序塊,它可以被賦予參數(shù) C 命名的PL/SQL程序塊,不能被賦予參數(shù) D 匿名的PL/SQL程序塊,不能被賦予參數(shù) 7、( )下列關(guān)于日期數(shù)據(jù)類型,哪一個語句是正確的寫法 A insert into test values( 9999-12-03 ) B insert into test values( 1999-03-02 ) C insert into test values(to_char(1999-06-03, yyyy/dd/mm )) D insert into test
標簽: people phone_number varchar2 alter
上傳時間: 2013-12-26
上傳用戶:wendy15
計算矩陣連乘積 問題描述 在科學(xué)計算中經(jīng)常要計算矩陣的乘積。矩陣A和B可乘的條件是矩陣A的列數(shù)等于矩陣B的行數(shù)。若A是一個p×q的矩陣,B是一個q×r的矩陣,則其乘積C=AB是一個p×r的矩陣。
上傳時間: 2015-03-25
上傳用戶:yulg
多種A/D轉(zhuǎn)換芯片在MCU應(yīng)用中的驅(qū)動程序,C語言原代碼
標簽: MCU 轉(zhuǎn)換芯片 驅(qū)動程序
上傳時間: 2013-12-19
上傳用戶:waizhang
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