By operating in the gray zone, states preserve escalation optionality, avoid reputation-locking commitments, and retain the ability to shift posture without incurring sudden political or strategic ...

The Transportation Department is pushing hard for the new system to go online in 2028, with a price tag for modernization that could reach $31.5 billion. Peraton has won the massive contract to lead a ...

The Federal Aviation Administration has given the green light for industry to start working on and turning in their proposals for a contract to stand up a new air traffic control system for managing U ...

The FAA has begun overhauling the nation's air traffic control system by increasing enrollment in controller training programs and offering bonuses to delay retirements. Transportation Secretary Sean ...

Many control towers still rely on decades-old equipment, with delays in implementing the FAA’s NextGen modernization program hampering improvements in safety and efficiency. A rise in near-miss ...

Abstract: This letter considers the finite-region fuzzy control issue of 2-D Roesser systems subject to input constraints, in which the transient information of the plant states is paid more attention ...

1 Health Materials Management Section, Linyi Central Hospital, Linyi, China 2 Department of Mechanical and Electrical Engineering, Linyi Polytechnic School, Linyi, China Introduction: In the modern ...

Introduction: This paper aims at the control problem of nonlinear systems with uncertainty in general, and avoids the deviation of sliding mode controller from the preset constraint region during the ...

Abstract: In this work, an adaptive fuzzy tracking control law is designed to control a type of high-order nonlinear systems, in which each subsystem has unknown control gain and high-order power.

Membership functions for temperature and humidity are defined as follows: When the Ball is at the desired position xd (e = ZE), and the Ball has no tendency to move left or right (edot = ZE), the ...