Helix Alpha Systems Ltd is a UK-based quantitative research and systems engineering firm focused on the development of algorithmic trading strategies. The firm provides end-to-end research, modeling, ...

A new metasurface lets scientists flip between ultra-stable light vortices, paving the way for tougher, smarter wireless communication.

Abstract: This paper proposes a method to synthesize a decentralized polynomial observer for the large-scale nonlinear system. The polynomial Takagi-Sugeno (T-S) fuzzy framework is employed to model ...

As electric vehicles and energy storage systems expand worldwide, demand for cobalt has surged, intensifying concerns over supply security, geopolitical concentration, and environmental and social ...

Vacuum ultraviolet (VUV, 100–200 nm) light sources are indispensable for advanced spectroscopy, quantum research, and semiconductor lithography. Although second harmonic generation (SHG) using ...

Information theory and network physiology are rapidly converging fields that offer powerful frameworks for unraveling the complexities of living systems. At ...

Nonlinear systems and networks theory is a branch of automatic control theory. It takes systems and networks described by nonlinear differential equations or difference equations as its research ...

Abstract: The Takagi–Sugeno (TS) fuzzy control design method has been widely utilized for nonlinear system control due to its ability to approximate complex system behaviors. Traditionally, TS fuzzy ...

The Trump administration has, for the first time ever, built a searchable national citizenship data system. The tool, which is being rolled out in phases, is designed to be used by state and local ...