REDUCTION OF CARBON DIOXIDE IN FILTERING FACEPIECE RESPIRATORS WITH AN ACTIVE-VENTING SYSTEM: A COMPUTATIONAL STUDY.

Reduction of Carbon Dioxide in Filtering Facepiece Respirators with an Active-Venting System: A Computational Study.

During expiration, the carbon dioxide (CO2) levels inside the dead space of a filtering facepiece respirator (FFR) increase significantly above the ambient concentration.To reduce the CO2 concentration inside the dead space, we attach an active lightweight venting system (AVS) comprising a one-way valve, a blower and a Ferrite Bars battery in a hou

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Digital Representation of Color Stitches in Craft Software

This paper studies problems related to the development of craft software.It proposes an approach to Tape developing an application for digital representation of color stitches in cross stitch pattern and crochet software.A database containing information about the most popular embroidery floss brands in Bulgaria has been built.The software module c

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