The developed temperature stratification model is consistent with airflow network models and the zone concept used in building thermal-simulation programs since it takes into account radiation (overlooked in airflow network models) and convection heat transfer at the same time.
In a study evaluating 50 long-term ARDS survivors, assessed a median of 5.5 years after ICU discharge, 54% had impairment (defined as < 80% predicted value) in at least one pulmonary function measure, including decreases in FEV1/FVC ratio consistent with airflow obstruction in 16 (32%), residual volume in 14 (28%), TLC in 10 (20%), and diffusing capacity in 8 (16%) patients.
Each is carefully designed, with the diameter, bend angles, and connections experimentally determined to provide consistent, maximized airflow.
Even though suspension travel on an F1 car is only a matter of millimetres, any change affects the car's behaviour, and teams are constantly working on ways to keep the airflow as consistent as possible despite the high forces during braking - which exceed 5G.
The effect of the structural changes found after exposure to HDMA and O3 is consistent with alterations in airflow and resistance found in asthmatics (James and Carroll 2000; Plopper et al. 2007; Tran et al. 2004b).
25, 26 A recent multicenter, cross-sectional study by Yawn et al determined the percentage of patients with airway obstruction (post-bronchodilator FEV1/FVC ratio ≤ 0.70) compared with those without airway obstruction (post-bronchodilator FEV1/FVC ratio > 0.70) and confirmed 26% patients with airflow obstruction consistent with COPD.
We defined airflow limitation consistent with COPD as the ratio of post-bronchodilator forced expiratory volume in 1 s (FEV1) to forced vital capacity (FVC) below the lower limit of normal (LLN), and used FEV1 to further grade the disease: FEV1 <80% predicted serving as the threshold for COPD II and an FEV1 <50% pred serving as the threshold for COPD III or higher.
All airflow simulations are consistent with the heterogeneity of drying usually observed in practice.
Rembrandt constantly fine-tunes its computerized controls to find the optimal consistent temperature, light level and airflow.
Airflows were selected based on maximising deposited particle mass and nicotine concentration in a short duration (10 puffs for at source measurements, 5 puffs per product for chamber deposition measurements); furthermore, the airflow range is consistent with other Vitrocell module studies [25].
Recent advances in computational technology have made computer simulation a viable way to provide consistent objective measures of nasal airflow and function.
