Ring-like patterns in the sky could be ghostly imprints of a universe that existed before the big bang, according to a controversial new study. If the theory is correct, the cosmic rings may be the ...

Abstract: This study presents a comprehensive mathematical model for analyzing optimum frequency hop (FH) patterns (OFHPs) derived from two-dimensional circular shifts applied to a Golomb Costas array ...

Abstract: Facing some special operating environments or conditions, existing control methods for the peg-in-hole assembly guided by robots always have their own disadvantages, for example, low ...

This repository contains a complete 3D printer model designed in SolidWorks 2025. The model includes all parts necessary for constructing the printer, including the extruder mount, guide shafts, ...

NBC News investigates sex abuse allegations in the Assemblies of God, the world's largest Pentecostal denomination. NBC News investigates sex abuse allegations in the ...

Some rashes look like ringworm but aren't, such as those caused by Lyme disease, eczema, and other conditions. You’ll need to see your healthcare provider to diagnose any circular rash that does not ...

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