Results 11 to 20 of about 836,304 (292)
Determination of initial velocity of gas diffusion under temperature control
Introduction: The initial velocity of gas diffusion (ΔP) of coal is an important index to characterize the outburst risk of coal, and temperature is an important factor affecting the determination of initial velocity of gas diffusion.
Xianguang Shang +8 more
doaj +1 more source
THREE-DIMENSIONAL SIMULATIONS OF TRANSIENT RESPONSE OF PEM FUEL CELLS [PDF]
Transients have utmost importance in the lifetime and performance degradation of PEM fuel cells. Recent studies show that cyclic transients can induce hygro-thermal fatigue.
Yesilyurt, Serhat, Yeşilyurt, Serhat
core +2 more sources
Diffusive ferromagnetic roller gas
Diffusive properties of an active magnetic roller gas are investigated in experiments and by means of discrete particles simulations.
Gašper Kokot +3 more
openaire +4 more sources
Lattice Boltzmann modeling of two component gas diffusion in solid oxide fuel cell [PDF]
In recent years, the need for high efficiency and low emission power generation systems has made much attention to the use of fuel cell technology. The solid oxide fuel cells due to their high operating temperature (800 ℃ -1000 ℃) are suitable for power ...
mohammadreza shahnazari, khavar fazeli
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The effective purification of corrosive gases at the cathode air stream side is essential for proton exchange membrane fuel cells’ performance in real-world applications. Gas molecular diffusion depth along the pore channel is a sufficient parameter that
Bin Xu, Haotian Qin, Lu Chen
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The Pneumatron device measures gas diffusion kinetics in the xylem of plants. The device provides an easy, low-cost, and powerful tool for research on plant water relations and gas exchange.
Christophe L. Trabi +9 more
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Gas Steady-state Diffusion in Fractal Porous Media [PDF]
Gas diffusion in fractal pores does not follow the classic Fick’s and Knudsen’s laws, so more research on gas diffusion in fractal porous media is needed. Fractal pore models are generated using the random walk method.
Zhehua Du
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On the Ionisation Fraction in Protoplanetary Disks II: The Effect of Turbulent Mixing on Gas--phase Chemistry [PDF]
We calculate the ionisation fraction in protostellar disk models using two different gas-phase chemical networks, and examine the effect of turbulent mixing by modelling the diffusion of chemical species vertically through the disk.
Balbus +26 more
core +4 more sources
SHAPE OF GRAIN BOUNDARY GROOVE ONPURE ICE SURFACE
In this work we studied the evolution of the groove that forms the grain boundary (BG) when it emerges to a free surface, in the presence of different processes of matter transport.
C. L. Di Prinzio +3 more
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Gas Diffusion and Flow in Shale Nanopores with Bound Water Films
Shale reservoirs are rich in nanoscale pore-microfractures, and generally contain water (especially inorganic pores) under reservoir conditions. Therefore, evaluating gas flow capacity under water-bearing conditions is of great significance for analyzing
Tianyi Zhao, Yuan Ji
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