2019-7-20 Experimental investigation of aerosol deposition through a realistic respiratory airway replica: An evaluation for MDI and DPI performance ... In the Section 3.2 validation studies are presented, ... This empirical correlation depends only on the Stokes number in each airway generation. Prediction of aerosol deposition for the subject (8a ...
More2019-6-27 A challenge of using CFD for simulating aerosol transmission of diseases is model validation. In most studies reported in the literature, model validation is performed indirectly by correlating the model predictions to observed disease events, instead of directly
More2017-6-30 Techniques for experimental aerosol generation, retention in the aerosol phase, and sampling require careful consideration and un- derstanding so that they are representative of the conditions the ...
MoreDetails about the modelling and experimental validation of the aerosol transport system, accounting for the distributed nature of the droplet sizes, were previously presented by Filho et al. (2017). Subsequently, the uncertainty and sensitivity analysis of the overall AACVD system, including the aerosol generation , transport and delivery to ...
More2009-5-1 The physiological flow facility used in this study was described in detail in a previous study by our group (van Ertbruggen et al., 2008).Briefly, steady flow (2.04. ml/s) through the model was generated by gravity of the fluid.. Based on the inlet lumen diameter and the mean velocity at the inlet, the Reynolds number was 0.13 corresponding to an in vivo mouth flow rate of about 30 l/min.
MoreThe modules for aerosol generation and transport have already been validated using experimental data. Future work includes further model validation, covering the delivery module. Finally, the feasibility study will be completed by modelling the chemistry in the reaction site.
More2018-12-1 The aerosol ultrasonic generation has been continuously developed since Wood and Loomis had reported the physical phenomena in 1927 (Wood Loomis, 1927).Typically, an ultrasonic nebulization system consists of an electrical excitation circuit, a piezoelectric actuator, a chamber, liquid and air as shown in Fig. 1.The electrical circuit generates an approx. 1–3 MHz signal to excite the ...
MoreExperimental Validation. ... the model analyzes the generation of cutting fluid aerosol associated with the rotary disk and liquid sheet formations on the workpiece surface. In coupling with fluid ...
More2021-7-21 Experimental results from the aerosol dispersion tests are presented in Fig. 6, with results normalized by the average particle concentration of a single breath (Table I) and smoothed using a 10 min moving average. For clarity, the variability between repeated measurements is illustrated by the shaded regions only in the no-mask and KN95 cases ...
More2011-12-23 2.3 Mass generation rate 16 2.4 Particle size distributions 18 2.4.1 Measurement method 18 2.4.2 Results 18 2.5 Aerosol concentrations after spraying 20 2.5.1 Measurement method 20 2.5.2 Results 23 3 Exposure model 29 3.1 Dispersion 29 3.2 Evaporation 29 3.3 Gravitational settling 32 3.4 Exposure model 34 4 Model versus experiment 37
MoreThis paper is aimed to validate smoothed particle hydrodynamics (SPH) on the generation and propagation of water waves. It is a classical problem in marine engineering but a still important problem because there is a strong demand to generate intended nonlinear
MoreDetails about the modelling and experimental validation of the aerosol transport system, accounting for the distributed nature of the droplet sizes, were previously presented by Filho et al. (2017). Subsequently, the uncertainty and sensitivity analysis of the overall AACVD system, including the aerosol generation , transport and delivery to ...
MoreStudy design and methods: Aerosol generation was measured during highly controlled experimental (pig) intubations (N = 16) and elective bronchoscopies in uninfected patients (N = 49) using an optical particle counter. Recovery of normal respiratory flora was used as a surrogate for pathogen dispersion.
More2011-12-23 2.3 Mass generation rate 16 2.4 Particle size distributions 18 2.4.1 Measurement method 18 2.4.2 Results 18 2.5 Aerosol concentrations after spraying 20 2.5.1 Measurement method 20 2.5.2 Results 23 3 Exposure model 29 3.1 Dispersion 29 3.2 Evaporation 29 3.3 Gravitational settling 32 3.4 Exposure model 34 4 Model versus experiment 37
MoreDevelopment, validation, and potential enhancements to the second-generation operational aerosol product at the National Environmental Satellite, Data, and Information Service of the National Oceanic and Atmospheric Administration Larry L. Stowe and Alexander M. Ignato½
More2021-4-8 By taking the metrological characterization phase as reference, the real-time measurements during the first step of the animal exposure phase allowed the validation of the aerosol generation for each inhalation exposure. The results and their S R are summarized in Table 1. Fig. 3.
More2021-7-21 Experimental results from the aerosol dispersion tests are presented in Fig. 6, with results normalized by the average particle concentration of a single breath (Table I) and smoothed using a 10 min moving average. For clarity, the variability between repeated measurements is illustrated by the shaded regions only in the no-mask and KN95 cases ...
More2016-2-3 The experimental database for development and validation of aerosol codes has benefited from more accurate and extensive instrumentation to measure a wider range of phenomena (e.g., the ability to ...
MoreMAESTRO uncertainties for NO 2 using all available data from 2005. Profiles are shown for the median (solid), and 16th and 84th percentiles (dotted) of the (a) absolute and (b) relative uncertainties.
More2015-7-3 Demonstration of capability, not a careful validation Considered was one test case only Challenging because of high computational costs A lack of experimental validation data was observed. Previous wind tunnel experiments focussed on isolated rotors or fuselages, or complete helicopter experiments with focus on vibrations or acoustics.
MoreThis paper is aimed to validate smoothed particle hydrodynamics (SPH) on the generation and propagation of water waves. It is a classical problem in marine engineering but a still important problem because there is a strong demand to generate intended nonlinear
MoreStudy design and methods: Aerosol generation was measured during highly controlled experimental (pig) intubations (N = 16) and elective bronchoscopies in uninfected patients (N = 49) using an optical particle counter. Recovery of normal respiratory flora was used as a surrogate for pathogen dispersion.
MoreDevelopment, validation, and potential enhancements to the second-generation operational aerosol product at the National Environmental Satellite, Data, and Information Service of the National Oceanic and Atmospheric Administration Larry L. Stowe and Alexander M. Ignato½
More2021-4-8 By taking the metrological characterization phase as reference, the real-time measurements during the first step of the animal exposure phase allowed the validation of the aerosol generation for each inhalation exposure. The results and their S R are summarized in Table 1. Fig. 3.
More2020-7-21 Aerosol generation was measured during highly controlled experimental (pig) intubations (N = 16) and elective bronchoscopies in uninfected patients (N = 49) using an optical particle counter. Recovery of normal respiratory flora was used as a surrogate for pathogen dispersion.
More2020-5-15 laboratory validation of two bioaerosol detectors (UV-APS and TACBIO) using a well characterized bacterial particle generation system. The second goal was to conduct field validation of the detectors through simultaneous UV-APS and TACBIO sampling of background aerosol concentrations in an outpatient hospital setting. The third goal was to
More2016-2-3 The experimental database for development and validation of aerosol codes has benefited from more accurate and extensive instrumentation to measure a wider range of phenomena (e.g., the ability to ...
More2015-7-3 Demonstration of capability, not a careful validation Considered was one test case only Challenging because of high computational costs A lack of experimental validation data was observed. Previous wind tunnel experiments focussed on isolated rotors or fuselages, or complete helicopter experiments with focus on vibrations or acoustics.
MoreMAESTRO uncertainties for NO 2 using all available data from 2005. Profiles are shown for the median (solid), and 16th and 84th percentiles (dotted) of the (a) absolute and (b) relative uncertainties.
MoreAll experimental results are in concordance and very close to the previous simulation results. Thus, confirm the validity and the feasibility of the proposed synergetic-based MPPT controller. This approach provides high efficiency 99.97% at standard test
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