The transition between convection and diffusion, and thus the size of the diffusion unit, depends on the air velocity at the acinus entrance. 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 ...
Thisrticle will explorehe physical principlesehindheehaviourfnaesthetic gases. We will explainnd define phasesfatter, pressure, gas laws, gaslow, diffusionndolubility.Thererehreeommonlybservedtates (or phases)fatter:olids, liquidsnd gases. Inolidsheoleculesrelosely packed in lattice, withtrongond...
In the human lung, the gas transfer between air and blood is achieved in terminal units that are called 'acini'. Whereas convection is still the predominant transport phenomenon at the acinus entrance, most of the acinar surface is in fact accessed by diffusion. The transition between convection...
摘要: This article will explore the physical principles behind the behaviour of anaesthetic gases. We will explain and define phases of matter, pressure, gas laws, gas flow, diffusion and solubility.关键词:Diffusion gas flow gas laws phases pressure solubility ...
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microlevel into the processes of formation of bonds in porous and monolithic titanium by diffusion bonding and shows the effect of process parameters on volumetric interaction occurring in the interfacial zone as a final stage of formation of the diffusion bond which determines its mechanical ...
Waveguides—often based on total internal reflection—underpin many photonic technologies, including fibre networks for broadband communications. Now a different type of waveguide based on physical diffusion in a scattering medium is demonstrated.
Er3+is implanted into CaWO4, a material with non-polar site symmetry free of background rare earth ions, to realize reduced optical spectral diffusion in nanophotonic devices, representing a step towards making telecom band quantum repeater networks with single ions. ...
diffusion扩散、弥散 digital display 数字显示 direct current直流 direction方向 dispersion色散、散布 distance 距离 E Electron Arrangement电子排布 Electron电子 energy 能量 equilibrium平衡 evaporate蒸发、挥发 evaporation蒸发 F field strength场强 field 场 first law of thermal dynamics 热力学第一定律 flux 流量、...
Within the framework of the Boussinesq approximation, as a function of the relationship between the partial diffusion factors, we have investigated an isothermal three-component gas mixture with respect to linear stability. In the stable diffusion region the process of isothermal mass transfer is descri...