中国日报网

China's Global Governance Initiative receives positive feedback at forum

The book, titled Global Governance Initiative: Jointly Building a Community with a Shared Future for Humanity, published in nine languages, is unveiled on Saturday at the Global Governance Forum 2026 ...
IEEE

Intelligent Inner Loop-Based Output-Feedback System for DC/DC Power Converters With Model-Free Observer

Abstract: This article presents an advanced observer-based cascade-type output-feedback controller eliminating the current loop and lowers the dependence level of the open-loop system for dc/dc power ...
Phys.org

Tropical feedback loop: Butterfly mimicry patterns evolve faster near the equator

In the early 1990s, Keith Willmott and a friend, both undergraduate students from the United Kingdom, arrived in Ecuador with impressionable minds and big aspirations. Willmott initially imagined ...
IEEE

Negative–Positive–Positive Sequential Method for Accurate Hysteresis Loop Measurement of Permanent Magnetic Materials Based on Pulsed Magnetic Field

Abstract: Pulsed field magnetometer (PFM) can achieve higher magnetic field at a lower cost, suitable for measuring ultrahigh coercive permanent magnets, but it generates eddy currents during the test ...