President Trump is hosting 5 African leaders in Washington this week — a selective summit that's raising eyebrows over who ...

President Trump is hosting 5 African leaders in Washington this week — a mini summit that's raising eyebrows over who was ...

At the end of a Cabinet meeting that had already stretched for some 90 minutes with talk of wars and disasters, Trump spent ...

A white light emitting diode (LED) does not offer uniform irradiance in the visible region of electromagnetic spectrum. However, the additional irradiance in the blue regions is found to be ...

In many meetings, tea tables are used, and staff serve tea. From the perspective of automation and labor cost, the intelligent tea table robot has important significance and value. Based on robot and ...