Abstract: The paper designs a composite controller, including a recursive positive position feedback (RPPF) controller and a feedforward-feedback controller, to suppress resonance and eliminate lag ...

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Nature gives rise to fascinating adaptations, which can sometimes lead to organisms living in some strange situations. The relationship between bark beetles, spruce trees, and a type of fungus is a ...

Excessive speed may have been a factor in the crash, according to authorities Abigail Adams is a Human Interest Writer and Reporter for PEOPLE. She has been working in journalism for seven years.

The U.S. Department of the Treasury's Office of Foreign Assets Control (OFAC) on Tuesday removed three individuals linked to the Intellexa Consortium, the holding company behind a commercial spyware ...