![Sustainability | Free Full-Text | Performance Evaluation and Optimum Design of Ventilation Roofs with Different Positions of Shape-Stabilized PCM Sustainability | Free Full-Text | Performance Evaluation and Optimum Design of Ventilation Roofs with Different Positions of Shape-Stabilized PCM](https://pub.mdpi-res.com/sustainability/sustainability-15-08721/article_deploy/html/images/sustainability-15-08721-g030.png?1686277262)
Sustainability | Free Full-Text | Performance Evaluation and Optimum Design of Ventilation Roofs with Different Positions of Shape-Stabilized PCM
![Optimum compression to ventilation ratios in CPR under realistic, practical conditions: a physiological and mathematical analysis. | Semantic Scholar Optimum compression to ventilation ratios in CPR under realistic, practical conditions: a physiological and mathematical analysis. | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/ff75fc85d6ef3a8ea0b23eb2901df1780d029708/34-Table1-1.png)
Optimum compression to ventilation ratios in CPR under realistic, practical conditions: a physiological and mathematical analysis. | Semantic Scholar
![ABUS GameChanger Road Bike Helmet - Aerodynamic Bike Helmet with Optimum Ventilation Features for Men and Women - Opal Green, L : Amazon.com.be: Sports & Outdoors ABUS GameChanger Road Bike Helmet - Aerodynamic Bike Helmet with Optimum Ventilation Features for Men and Women - Opal Green, L : Amazon.com.be: Sports & Outdoors](https://m.media-amazon.com/images/I/41nwx3yyHTL._AC_SY780_.jpg)
ABUS GameChanger Road Bike Helmet - Aerodynamic Bike Helmet with Optimum Ventilation Features for Men and Women - Opal Green, L : Amazon.com.be: Sports & Outdoors
![OPTI-iM412 - Ventilateur d'entretoit à ailettes avec base isolée pour toit plat (Adapté pour les membranes) - Optimum OPTI-iM412 - Ventilateur d'entretoit à ailettes avec base isolée pour toit plat (Adapté pour les membranes) - Optimum](https://optimumv.pro/wp-content/uploads/2022/01/OP-i412.png)