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：本设计采用集成芯片ICL7107作为数字电压表的A／D转换及锁存和译码模块，使得电路具有设计 简单、集成度及可靠性高的特点。该系统设计了自动切换量程功能，能够实现0～199mV、0-1．99V、0～19．99V、 0～199．9V、0～1999V，共5个量程电压值的测量。本系统做成了电路板，进行了测试，得到了良好的测试结果。 ...

This project shows the temperature on a three digit 7-segment display, it measures the temperature from -9.5 to 99 degrees Celcius in 0.5 C steps, or from 0 to 210 degrees Fahrenheit in 1.0 degrees steps. Because of the LED display the temperature is also readable in the dark.

An interactive water fountain. A realistic water source in your pocket with full control. Controls: UP/DOWN - go closer/further LEFT/RIGHT - rotate # - stop rotation 1/7 - rotate camera up/down 3/9 - change water pressure 4/6 - change water rendering complexity 2/8 - ascend/descend 0 - bullet time ...

This is the Reference Manual for the MySQL Database System. It documents MySQL up to Version 5.0.1-alpha, but is also applicable for older versions of the MySQL software (such as 3.23 or 4.0-production) because functional changes are indicated with reference to a version number.

本书介绍了在Microsoft Windows 98、Microsoft Windows NT 4.0和Windows NT 5.0下程序写作的方法。这些程序用C语言编写并使用原始的Windows Application Programming Interface（API）。如在本章稍后所讨论的，这不是写作Windows程序的唯一方法。然而，无论最终您使用什么方式写作程序，了解Windows API都是非常重要的。 ...

OTSU Gray-level image segmentation using Otsu s method. Iseg = OTSU(I,n) computes a segmented image (Iseg) containing n classes by means of Otsu s n-thresholding method (Otsu N, A Threshold Selection Method from Gray-Level Histograms, IEEE Trans. Syst. Man Cybern. 9:62-66 1979). Thre ...

This is a Flex UIComponent that can be used 谋n a FLEX 3 mxml application as component written in action script 3.0, provides you to create items that cab be filled from an XML or Query ResultSet or etc. and is viewed in a container that can preview images and additional info like a store item and c ...

本书介绍了在Microsoft Windows 98、Microsoft Windows NT 4.0和Windows NT 5.0下程式写作的方法。这些程式用C语言编写并使用原始的Windows Application Programming Interface（API）。

Maya Calendar During his last sabbatical, professor M. A. Ya made a surprising discovery about the old Maya calendar. From an old knotted message, professor discovered that the Maya civilization used a 365 day long year, called Haab, which had 19 months. Each of the first 18 months was 20 days long ...

Ruby For Rails 经典的RoR电子书 译者: 吴畅欣 / 张明生 作者: 布莱克 ISBN: 9787115161611 页数: 386 定价: 59.0 出版社: 人民邮电出版社 装帧: 平装 出版年: 2007-7-1 # 简介 　　本书是一部专门为Rails实践而写的经典Ruby著作，由四部分组成，共17章。第一部分讲述Ruby和Rails的编程环境。第二部分和第三部分与Rails紧 ...