ERwin是一個數據庫關系實體模型(ER Model)設計工具,與PowER DesignER(Sybase公司開發)成為最常用的兩種數據庫設計工具。目前該工具被CA收購,成為CA數據庫解決方案中的一個關鍵部分。與微軟的Vision相比,ERwin只能設計ER model,而且設計界面選項較多,相對來說并不那么友好,增加了使用的難度
上傳時間: 2017-03-20
上傳用戶:二驅蚊器
C++ XML is a book exclusively devoted to the pow ER and complexities of integrating XML standards into C++. As a developER,this is a book you cannot miss. C++ XML addresses all major standards,toolkits,and types of applications dealing with XML as a format for representing and exchanging data,as well as XML behavior,from a C++ standpoint. It explains the implementation of applications and reusuable frameworks for all major XML purposes exclusively using C/C++ parsERs and toolkits, such as expat,XERces,Xalan,libxml2,and Microsoft’s MSXML.
標簽: complexities exclusively integrating XML
上傳時間: 2014-03-11
上傳用戶:zhaiyanzhong
圖書管理系統數據庫設計-包含ER圖 是自己原來課程設計做的
上傳時間: 2014-01-23
上傳用戶:x4587
成績管理系統的ER圖,用于數據庫系統設計
標簽: 管理系統
上傳時間: 2017-09-24
上傳用戶:大三三
H3C ER G2系列高性能企業級路由器 快速入門-6PW108-整本手冊
標簽: H3C 6PW 108 ER 性能 企業級 快速入門 路由器 手冊
上傳時間: 2020-09-26
上傳用戶:
·注:以下資料由深圳英貝德公司提供。僅供學習參考。不要用作商業用途。我們不銷售這塊板,想購買的可以直接聯系深圳英貝德公司。 該板的功能比較豐富,帶USB與CAN功能。 配有一只簡易JTAG仿真器。電路圖: 開發板的電路圖(Protel格式及PDF格式) 簡易JTAG電路圖 本開發板涉及的IC的數據手冊:包括: at24c08.pdf AT91SAM7s64 ER
上傳時間: 2013-05-22
上傳用戶:cc111
·注:以下資料由深圳英貝德公司提供。僅供學習參考。不要用作商業用途。我們不銷售這塊板,想購買的可以直接聯系深圳英貝德公司。 該板的功能比較豐富,帶USB與CAN功能。 配有一只簡易JTAG仿真器。電路圖: 開發板的電路圖(Protel格式及PDF格式) 簡易JTAG電路圖 本開發板涉及的IC的數據手冊:包括: at24c08.pdf AT91SAM7s64 ER
上傳時間: 2013-06-17
上傳用戶:時代將軍
Photodiodes can be broken into two categories: largearea photodiodes with their attendant high capacitance(30pF to 3000pF) and smallER area photodiodes withrelatively low capacitance (10pF or less). For optimalsignal-to-noise pERformance, a transimpedance amplifi ERconsisting of an invERting op amp and a feedback resistoris most commonly used to convERt the photodiode currentinto voltage. In low noise amplifi ER design, large areaphotodiode amplifi ERs require more attention to reducingop amp input voltage noise, while small area photodiodeamplifi ERs require more attention to reducing op amp inputcurrent noise and parasitic capacitances.
上傳時間: 2013-10-28
上傳用戶:hanbeidang
A fully diffERential amplifi ER is often used to convERta single-ended signal to a diffERential signal, a designwhich requires three signifi cant considERations: theimpedance of the single-ended source must match thesingle-ended impedance of the diffERential amplifi ER,the amplifi ER’s inputs must remain within the commonmode voltage limits and the input signal must be levelshifted to a signal that is centERed at the desired outputcommon mode voltage.
上傳時間: 2013-11-09
上傳用戶:wweqas
Recent advances in low voltage silicon gERmaniumand BiCMOS processes have allowed the design andproduction of vERy high speed amplifi ERs. Because theprocesses are low voltage, most of the amplifi ER designshave incorporated diffERential inputs and outputs to regainand maximize total output signal swing. Since many lowvoltageapplications are single-ended, the questions arise,“How can I use a diffERential I/O amplifi ER in a single-endedapplication?” and “What are the implications of suchuse?” This Design Note addresses some of the practicalimplications and demonstrates specifi c single-endedapplications using the 3GHz gain-bandwidth LTC6406diffERential I/O amplifi ER.
上傳時間: 2013-11-23
上傳用戶:rocketrevenge