Business Line

Why rigid control of power grid frequency should be a thing of the past

For decades, electricity regulators have treated tight control of grid frequency as a basic sign of power system security. If the frequency stayed close to the nominal value, the system was considered ...
Healthline

A Guide to Mastering Orgasm Control for More Satisfying Sex

Edging means stopping stimulation right before orgasm, waiting about 30 seconds, then starting again until you choose to climax. The practice is also called surfing, peaking, or teasing, and it’s ...
IEEE

Resilient Secondary Frequency Control in Distributed Renewable Energy Microgrids Under Cyber Attacks: A Double Replay Q-Learning Approach

Abstract: This paper addresses the challenge of resilient secondary frequency control in distributed renewable energy microgrids under False Data Injection Attacks. A rigorous Lyapunov based stability ...
IEEE

High-Precision Speed Control Using Disturbance Observer Incorporated Variable Reaching Law Super-Twisting Sliding Mode Control

Abstract: Super-twisting sliding mode (STM) control offers advantages, such as fast response and low demand on motor model accuracy, and is attractive for the permanent magnet synchronous motor (PMSM) ...
Nature

Variable Source of Radio Frequency Radiation in the Constellation of Cygnus

Proc. Inst. Radio Eng., 20, 1920 (1932). Astrophys. J., 91, 625 (1940). Astrophys. J., 105, 235 (1947). Nature, 158, 234 (1946). Nature, 157, 158 (1946). Nature, 157 ...