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The Philips family of Multiplexers and Switches consists of bi-directional translating switches controlled via the I2C or SMBus to fan out an upstream SCL/SDA pair to 2, 4 or 8 downstream channels of SCx/SDx pairs. The Multiplexers allow only one downstream channel to be selected at a time, while the Switches allow any individual downstream channel or combination of downstream channels to be selected, depending on the Content of the programmable control register. Once one or several channels have been selected, the device acts as a wire, allowing the master on the upstream channel to send commands to devices on all the active downstream channels, and devices on the active downstream channels to communicate with each other and the master. External pull-up resistors are used to pull each individual channel up to the desired voltage level. Combined interrupt output and hardware reset input are device options that are featured.
標(biāo)簽:
SMBus
954X
PCA
954
上傳時間:
2013-10-11
上傳用戶:dianxin61
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Agilent AN 154 S-Parameter Design Application Note S參數(shù)的設(shè)計(jì)與應(yīng)用
The need for new high-frequency, solid-state circuitdesign techniques has been recognized both by microwaveengineers and circuit designers. These engineersare being asked to design solid state circuitsthat will operate at higher and higher frequencies.The development of microwave transistors andAgilent Technologies’ network analysis instrumentationsystems that permit complete network characterizationin the microwave frequency rangehave greatly assisted these engineers in their work.The Agilent Microwave Division’s lab staff hasdeveloped a high frequency circuit design seminarto assist their counterparts in R&D labs throughoutthe world. This seminar has been presentedin a number of locations in the United States andEurope.From the experience gained in presenting this originalseminar, we have developed a four-part videotape, S-Parameter Design Seminar. While the technologyof high frequency circuit design is everchanging, the concepts upon which this technologyhas been built are relatively invariant.The Content of the S-Parameter Design Seminar isas follows:
標(biāo)簽:
S參數(shù)
上傳時間:
2013-12-19
上傳用戶:aa54
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PhpDig is a search engine written in PHP that uses a MySQL database backend. It features indexing of both static and dynamic pages, spidering of almost all links in HTML Content, in hrefs, areamaps, and frames, and full text indexing. The search results appearence is skin-able, using a very simple templates system. PhpDig是一個用PHP編寫的搜索引擎,它使用MySQL數(shù)據(jù)庫后臺。它的功能有靜態(tài)和動態(tài)頁面索引,在HTML內(nèi)容中用hrefs, areamaps,和frames以及全文本索引構(gòu)成所有的鏈接網(wǎng)。搜索結(jié)果的外觀是可定制外觀的,使用一個非常簡單的模板系統(tǒng)。
標(biāo)簽:
database
features
indexing
backend
上傳時間:
2014-01-03
上傳用戶:haohaoxuexi
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留言本 需要修改的地方都有注釋 你可以自行修改 主要有l(wèi)ogin.jsp和jdbc.java里面關(guān)系都數(shù)據(jù)庫連接部分 jdbc你修改編譯之后請放到WEB-INF\classes\wu目錄下面 數(shù)據(jù)庫采用的是mysql 建表語言是: CREATE TABLE liuyan_temp ( id int(6) NOT NULL auto_increment, url varchar(100) default # , ip varchar(20) default NULL, email varchar(50) default # , qq varchar(20) default NULL, sj varchar(30) default NULL, Content text, xm varchar(20) default 沒有姓名 , KEY id (id) ) TYPE=MyISAM
標(biāo)簽:
jdbc
WEB-INFclasseswu
login
java
上傳時間:
2014-01-10
上傳用戶:songyue1991
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eGroupWare is a multi-user, web-based groupware suite developed on a custom set of PHP-based APIs. Currently available modules include: email, addressbook, calendar, infolog (notes, to-do s, phone calls), Content management, forum, bookmarks, wiki
標(biāo)簽:
eGroupWare
multi-user
developed
PHP-based
上傳時間:
2015-02-20
上傳用戶:hphh
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數(shù)據(jù)庫的文件,能 夠很好的實(shí)現(xiàn)數(shù)據(jù)庫系統(tǒng)的功能。Liang個人主頁 >> 文章 >> 電大學(xué)生 >> 例子... ...影音 留言 電大學(xué)生 VB教程 系統(tǒng)安全 ASP 例子---倉庫管理系統(tǒng) 作者: 佚名 來源:NET/DXZM 點(diǎn)擊:143 時間:2004-3-2 編輯:admin 本系統(tǒng)是一套基 于C/S...趨于合理。 3.物品支持代碼, 中文, 五筆碼, 拼音... www.pyslzx.net/liang/info_Show.asp?ArticleID=117 18K 2004-11-4 - 百度快照 公司倉庫管理系統(tǒng)畢業(yè)論文 計(jì)算機(jī)畢業(yè)論文 ...>>計(jì)算機(jī)畢業(yè)論文 公司倉庫管理系統(tǒng)畢業(yè)論文 一章 ...鼠標(biāo)單擊,用戶必 須編寫代碼控制這些事件的響應(yīng)方法...的兩個月內(nèi),通過參考各種VB編程書籍 、網(wǎng)上查找信息...畢業(yè)設(shè)計(jì)——浙江佳雪倉庫管理系統(tǒng)。 起初,我看了... www.16lw.com/Content/438.htm 23K 2005-2-25 - 百度快照 www.16lw.com 上的更多結(jié)果 兄弟資源網(wǎng)倉庫管理系統(tǒng)--逐跡下載站--免費(fèi)源代
標(biāo)簽:
數(shù)據(jù)庫
上傳時間:
2014-10-25
上傳用戶:cccole0605
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Easy installation
Support servers like Tomcat, Resin, WebSphere, WebLogic etc.
Multi-languages(English/Chinese...)
Support RSS 2.0
RSS syndication
Unlimited XML news source
Customizable fetch time interval
Customizable max entry count
Customizable max Content size
標(biāo)簽:
Multi-languages
installation
WebSphere
WebLogic
上傳時間:
2014-01-03
上傳用戶:懶龍1988
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In this book, we aim to give you an introduction to a wide variety of topics important to you as a developer using UNIX. The word Beginning in the title refers more to the Content than to your skill level. We ve structured the book to help you learn more about what UNIX has to offer, however much experience you have already. UNIX programming is a large field and we aim to cover enough about a wide range of topics to give you a good beginning in each subject.
標(biāo)簽:
introduction
important
you
to
上傳時間:
2013-12-22
上傳用戶:youmo81
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The extraordinary growth of the World Wide Web has been fueled by the ability it gives authors to easily and cheaply distribute electronic documents to an international audience. As Web documents have become larger and more complex, however, Web Content providers have begun to experience the limitations of a medium that does not provide the extensibility, structure, and data checking needed for large-scale commercial publishing. The ability of Java applets to embed powerful data manipulation capabilities in Web clients makes even clearer the limitations of current methods for the transmittal of document data.
標(biāo)簽:
extraordinary
the
ability
authors
上傳時間:
2015-08-11
上傳用戶:ANRAN
-
本書包含了許多Ajax技術(shù)的設(shè)計(jì)模式。例如:你應(yīng)該如何分割數(shù)據(jù)以便于分配呢?答案是,采用內(nèi)容分塊模式(Content Chunking Pattern);如何有效地維護(hù)狀態(tài)或至少是維護(hù)痕跡呢?答案是,采用持久通信模式(Persistent Communications Pattern);如何讓用戶對所有潛在的數(shù)據(jù)了如指掌呢?答案是,采用無限數(shù)據(jù)模式(Infinite Data Pattern)。通過書中呈現(xiàn)的九種模式,作者幾乎發(fā)掘了所有的Ajax理論,這些知識對你將來編寫應(yīng)用程序時制定策略有重大的幫助。每種模式都有相應(yīng)的章節(jié)對其進(jìn)行論述,每章均以模式的設(shè)計(jì)意圖為開頭,然后介紹使用該模式的動機(jī),并列舉一系列使用該模式開發(fā)的應(yīng)用程序和與該模式相關(guān)聯(lián)的設(shè)計(jì)模式。接著,以解決實(shí)際問題的方式詮釋該設(shè)計(jì)模式的架構(gòu)。最后,執(zhí)行程序通過代碼及用戶與各種網(wǎng)頁的互動形式展現(xiàn)。在章末,還有對該章精華內(nèi)容的總結(jié)回顧。
標(biāo)簽:
Ajax
設(shè)計(jì)模式
分割
數(shù)據(jù)
上傳時間:
2015-09-30
上傳用戶:saharawalker