In this work, we, for the first time, propose a quartz crystal microbalance (QCM) humidity sensor that is prepared by a one-step method based on pencil drawing. The scanning electron microscopy (SEM), ...

This article proposes a novel humidity sensor using a microwave resonant cavity as the sensing device. This sensor comprises a high-quality factor resonant cavity and frequency detection circuits. The ...

🪖 Helmet Detection System An AI-powered helmet detection system using YOLOv8 for safety compliance monitoring with Arduino hardware integration.

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