Oracle的CASE WHEN语法是一种在数据库查询中使用的条件语句，它提供了一种在SELECT语句中根据条件对结果进行转换或筛选的方法。在本文中，我们将详细介绍Oracle的CASE WHEN
2023-12-06 10:21
This design idea explains how a 915MHz receiver can sound an alarm when a transmitter moves beyond a predetermined boundary.
2011-08-25 18:18
Abstract: A loss of AC power during darkness (sensed by a photoresistor) turns on an array of battery-powered white LEDs. To conserve power, a timer turns off the LEDs after a particular period of time (for example, 10 minutes).
2009-05-06 10:16
When Hungry - 是一个将世界各地每个城市中的优质餐厅集聚起来的全球性食物订购和配送平台。该平台结合了网站和移动解决方案，是在互联网和区块链技术的基础上实施的。 When
2019-03-26 11:31
Timing Con
2009-04-24 09:12
Abstract: A loss of AC power during darkness (sensed by a photoresistor) turns on an array of battery-powered white LEDs. To conserve power, a timer turns off the LEDs after a particular period of time (for example, 10 minutes).
2009-04-27 09:05
Portable systems often use LEDs of different colors-white for the display backlight, green for keypad illumination, red for power, etc., and in varying quantities of each. Typically the LEDs are driven by at least two power supplies, one f
2009-05-07 10:10
, for example, are less efficient than switching types when operating at high current and a large VIN - VOUT difference. A linear ch
2009-04-30 11:05
Abstract: This application note discusses issues that should be considered when designing a system
2009-04-23 17:20
This tutorial discusses the different types of pulse oximeters including optical and reflective
2010-06-26 09:13
