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 Blazer/Sportcoat CO2 concentration inside the dead space, we attach an active lightweight venting system (AVS) comprising a one-way valve, a blower and a battery in a

read more


The role of relational and informational capabilities in mediating the effect of social media adoption on business performance in fashion industry

This study aims to explain the role of relational capability and informational capability in mediating the effect of social media adoption on business performance.The population of this study is the owners of the fashion sector SMEs in Bali.The sample size used was 114 businesses with a Batteries - Chargers purposive sampling approach.The analytica

read more

Pretreatment methods as a means of boosting methane production from sewage sludge and its mixtures with grease trap sludge

The main objective of this study was to determine the applicability of the selected pretreatment methods as a means Hair bleach of intensification of methane production from sewage sludge as well as its mixtures with grease trap sludge.The addition of the fat rich material to the digester treating sewage sludge resulted in an increased methane yiel

read more