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  • Dynamic noise of potentiometer

    2020-05-12 | Technology

    The resolution of the potentiometer is also called resolution. For the wire wound potentiometer, the output voltage changes discontinuously every time the movable contact moves one turn. The ratio of this change to the output voltage is the resolution. The theoretical resolution of a linear wire-wound potentiometer is the reciprocal of the total number of winding turns N, and is expressed as a per .... (更多)
  • Non-switchable lighting in smart homes

    2020-05-06 | Technology

    One possibility for future lighting solutions in smart homes is to completely eliminate lighting switches. For those who already own Sonos at home, you may know that there is no physical switch to turn off the music. You can run music through their applications.
    However, the switchless implementation faces challenges. If you are using Sonos to visit a house without downloading the application t .... (更多)
  • Drive motor classification

    2020-04-27 | Technology

    At present, the commonly used motors are brushless DC motors, permanent magnet synchronous motors, squirrel-cage asynchronous motors, and switched reluctance motors.
    Some of the hong kong hotels kowloon provide with such amazing food options.
    Based on various comparisons, AC induction motors and permanent magnet synchronous motors are widely used in electric vehicles. The following focuses o .... (更多)
  • 13岁的小男孩眨着眼睛听着婶婶的一番言语,心中肯定是有所触动的。因为在北京的家里,他的一切生活都是爸爸妈妈全盘负责。
      最后,当婶婶问他听明白了没有的时候,他说:“明白了。”
      是啊,婶婶说得没错,她不欠爸爸,更不欠自己,自己已经13岁了,是个大孩子了,已经能做很多事,包括自己解决早餐,以及自己出门,去自己喜欢的地方。
      一个月之后,他回到了北京的家,家人惊讶地发现,这个孩子变了,变得什么都会做,他会管理自己的一切:起床后叠被子,吃饭后会洗碗筷,清扫屋子,会使用洗衣机,会按时睡觉,对人也变得有礼貌了……
      他的爸爸妈妈对婶婶佩服得五体投地,问她:“你施了什么魔法?让我儿子一个月之内就长大懂事了? ”
      宠爱,不是真爱。
      现在很多的父母太宠爱溺爱孩子了,只要自己有的,全都给了孩子,自己没有的,也总想要把世上最好的一切提供给孩子,甚至恨不 .... (更多)

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