Terrestrial and satellite communications, tactical data links, positioning, navigation, and timing (PNT), as well as distributed sensing will continue to require precise timing and the ability to synchronize and disseminate time effectively.However, the supply of space-qualified clocks that meet Global Navigation Satellite Systems (GNSS)-level perf
Background: Patients with suicide attempts usually present to the emergency department of hospitals, and the attitude of nursing staff and opi all your dreams in vending machines medical personnel plays a major role in their recovery.There is a negative perception and stigma associated with suicide among the public and hospital staff.This study aim
In the condition of connecting large scale doubly-fed induction generators (DFIGs) into weak grid, the closely coupled interactions between wind generators and power grid becomes more severe.Some new fault characteristics including voltage phase angle jump will emerge, which will influence the power quality of power system.However, there are very f
In ecological studies, it is not uncommon to encounter scenarios where the same phenomenon (e.g., species occurrence, species abundance) is observed using two tc m350 different types of samplers.For example, species data can be collected from scientific sampling with a completely random sample pattern, but also from opportunistic sampling (e.g., wh