Diffusion in the gaseous space in the lungs as one of the limiting factors of gas transport To elucidate the acuate effects of NO 2 on gaseous exchange in the lungs of mice during and after NO 2 exposure, O 2 and CO 2 concentrations in the respira... Y Ohta 被引量: 0发表: 2010年...
Aerosol bolus dispersion is a physiological test of lungs, which uses monodisperse submicron particles to measure intrapulmonary convective gas mixing. In ... P Brand,C Rieger,H Schulz,... - 《European Respiratory Journal Official Journal of the European Society for Clinical Respiratory Physiology》 ...
Diffusion in biological systems. Diffusion plays an important role in the life processes of animal and plant tissues and cells (for example, diffusion of oxygen from the lungs into the blood, as well as from the blood into the tissues; absorption of the products of digestion from the digestive...
Spot the fake lungs: Generating Synthetic Medical Images using Neural Diffusion Models Hazrat Ali, Shafaq Murad, Zubair Shah arXiv 2022. [Paper] [Project] 2 Nov 2022 MedSegDiff: Medical Image Segmentation with Diffusion Probabilistic Model Junde Wu, Huihui Fang, Yu Zhang, Yehui Yang, Yanw...
Multiple gas rebreathing techniques were used to measure total lung diffusion capacity (D L CO), membrane component of diffusion capacity (Dm) and pulmonary capillary blood volume (Vc) in five anesthetized dogs. After the rebreathing measurements were made, the lungs were inflation fixed with ...
The unidirectional flow through bird lungs not only permits more oxygen to diffuse into the blood but also keeps the volume of air in the lungs nearly constant, a requirement for maintaining a level flight path. 经过鸟肺的单向气流不仅容让更多的氧气扩散到血液之中,而且也能使肺部的气体容量几乎...
Diffusion in biological systems. Diffusion plays an important role in the life processes of animal and plant tissues and cells (for example, diffusion of oxygen from the lungs into the blood, as well as from the blood into the tissues; absorption of the products of digestion from the digestive...
The ultrasensitive measuring technique, which is explained in outline, depends on a dynamic measurement of partial pressures. The precise characterisation of the samples permits correlation between mechanical properties and diffusion kinetics. Below 1100 °C structural recovery processes dominate and determine...
Some examples are neutron polar- ization2, studies of surface interactions3, magnetic resonance imaging of lungs and other organs of the human body4, precision measurements5 and quantum computation6. All these applications require that the highly non-equilibrium polarizations of the noble gas nuclei...
In this paper, we present a gas transport model which takes into account both the diffusion into the acinus and the diffusion across the alveolar membrane. It is shown that the physiological sizes of the diffusion unit in the lung, at rest or at exercise, can be explained by physical ...