DETECTION OF SAFETY HELMET AND MASK WEARING USING IMPROVED YOLOV5S

Detection of safety helmet and mask wearing using improved YOLOv5s

Abstract With the advancement of society, ensuring the safety of personnel involved in municipal construction projects, particularly in the context of pandemic control measures, has become a matter of utmost importance.This paper introduces a security measure for municipal engineering, combining deep learning with object detection technology.It pro

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Dynamic design model of displacement ventilation

An accurate temperature gradient calculation is essential for displacement ventilation (DV) system design, since it directly relates to the calculation of the required supply air flow rate.Inaccurate tonic shower cap temperature prediction can cause the poor thermal comfort and w sizing of the ventilation and cooling systems.Several simplified noda

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Isolation and characterization of lamellar body material from rat lung homogenates by continuous linear sucrose gradients.

A technique is described for isolating lamellar body material from rat lung.Membranes 15-eg1053cl with relative densities ranging between 1.050 and 1.074 g/ml were isolated by centrifugation of crude lung homogenates upward through continuous linear sucrose gradients at 40,000 rpm (199,000 g) for 3 hr.Their protein and lipid content was characteris

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