A research team led by Dr. Shen Jinhua from the Xinjiang Astronomical Observatory (XAO) of the Chinese Academy of Sciences has investigated rapid spatiotemporal vertical electric currents (VECs) ...

The 'S' in the 'S-Curve' definition stands for 'Sigmoidal', which is a mathematical term related to the way the curve is derived. You can, however, think of it as an S-shaped curve that predicts ...

In this study, an obstacle avoidance maneuver with sigmoid function optimization is applied on the path following control of the Autonomous truck-trailer. The accumulation of trailers and traffic ...

However, these transformation functions tend to result in over-enhancement artifacts such as noise amplification, mean brightness change, and detail loss. To overcome the limitations of conventional ...

This cross-sectional study was carried out at Ain Shams University Hospitals between December 2023 and December 2024, a period of 12 months. The study recruited 36 patients who had pulsatile tinnitus ...

A sigmoid septum occurs when part of the heart muscle expands and blocks a pathway blood uses to leave the heart’s left side. It often does not cause symptoms and has links to aging.