Explore how file QR codes revolutionize sharing for PDFs, manuals and portfolios. Get expert tips on QR code customization ...

March 5, 2026: We added a new Brawl Stars QR code, offering a free pentagram-theme spray. We looked for more creator and sushi codes, too, and also made sure all existing codes still work. When you're ...

This repository contains the source material, code, and data for the book, Computational Methods for Economists using Python, by Richard W. Evans (2023). This book is freely available online as an ...

Abstract: This study examines a method of refining a low-resolution QR code image photographed from a distance into a decodable code image by using pix2pix, a deep learning technique. The experimental ...

Abstract: Vending machines are now widely used and recognized worldwide. Compared to traditional purchasing, vending machines are more convenient and accessible. Coinoperated vending machines are ...