Deep under the Yangtze River, a stranded tunnel boring machine that looked like a sunk cost has instead become a showcase of ...

Abstract: This paper presents a detailed comparative analysis of conventional and AI-driven Maximum Power Point Tracking (MPPT) techniques utilized in photovoltaic (PV) systems. The study evaluates ...

The chart below tracks President Donald Trump’s approval and disapproval ratings across polls. It includes all national-level results on this question which meet CNN’s standards for reporting.