Regional deposition of particles in an image-based airway model: large-eddy simulation and left-right lung ventilation asymmetry [0.03%]
基于图像的气道模型中颗粒物的区域沉积:大涡模拟与左右肺通气不对称性
Andrew R Lambert,Patrick OShaughnessy,Merryn H Tawhai et al.
Andrew R Lambert et al.
Regional deposition and ventilation of particles by generation, lobe and lung during steady inhalation in a computed tomography (CT) based human airway model are investigated numerically. The airway model consists of a seven-generation huma...
Characterization of Nanoaerosol Size Change During Enhanced Condensational Growth [0.03%]
增强凝结生长条件下纳米气溶胶粒径变化特征研究
P Worth Longest,James T McLeskey Jr,Michael Hindle
P Worth Longest
Increasing the size of nanoaerosols may be beneficial in a number of applications including filtration, particle size selection, and targeted respiratory drug delivery. A potential method to increase particle or droplet size is enhanced con...
Redox Dynamics of Mixed Metal (Mn, Cr, and Fe) Ultrafine Particles [0.03%]
混合金属(Mn、Cr和Fe)超细颗粒的氧化还原动力学
Peter S Nico,Benjamin M Kumfer,Ian M Kennedy et al.
Peter S Nico et al.
The impact of particle composition on metal oxidation state, and on changes in oxidation state with simulated atmospheric aging, are investigated experimentally in flame-generated nanoparticles containing Mn, Cr, and Fe. The results demonst...
Yung Sung Cheng
Yung Sung Cheng
The extrathoracic region, including the nasal and oral passages, pharynx, and larynx, is the entrance to the human respiratory tract and the first line of defense against inhaled air pollutants. Estimates of regional deposition in the thora...
Intensive Short Term Measurements of the Ambient Aerosol in the Greater Cincinnati Airshed [0.03%]
俄亥俄河谷地区气溶胶高强度短期观测研究
Rafael McDonald,Shaohua Hu,Dainius Martuzevicius et al.
Rafael McDonald et al.
As part of a larger study undertaken in the Greater Cincinnati area to determine if diesel truck emissions are adjuvant to naturally occurring bioaerosols in the initiation of allergies in children, a more detailed intensive measurement cam...
Y H Chang,C P Yu
Y H Chang
A thorough analysis of aerosol particle deposition in the human lung requires the knowledge of the distribution of inspired air at respiration. In this paper, a mathematical model of ventilation distribution has been developed using a five-...
V R Oberbeck
V R Oberbeck
Derivation of statistically significant size distributions from impactor samples of rarefied stratospheric aerosols imposes difficult sampling constraints on collector design. It is shown that is is necessary to design impactors of differen...