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腾讯网
9 天
以小见大,美国国防部DARPA寻求可移动量子传感器,DOD或对量子信息 ...
近日,DARPA(美国国防部高级研究计划局)在SAM.GOV发布名为,Future Program Announcement:Robust Quantum Sensors (RoQS) (未来项目公告:稳定量子传感器)公告。公告称, RoQS ...
eeworld.com.cn
6 天
历史上的今天
led调色温是改变不同光的比例。增加红光,色温变暖,增加兰光,色温变冷。调亮度,改变流过LED的电流大小,电流大些,就亮些。反之就暗些。电流的调节,是用改变PWM来实现的。所谓PWM,就是脉冲宽度调整。脉冲宽度调整的方法,最根本的是改变决定其宽度 ...
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Los Angeles wildfire updates
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