This structure improves the diffusion efficiency of the reactant gas in the gas channel.

The shower head is provided with a material gas diffusing chamber and a reaction gas diffusing chamber.

At the same time, the total pore volume V of the cathode gas diffusion layer is higher than the total pore volume of the anode gas diffusion layer (VCathode > VAnode).

The diffusion backing layer consists of a metal core having gas diffusion structures bonded to the metal core.

The gas (802) diffuses outwardly during cartridge rotation, causing substantial mixing of the gas (802) and fluid (840), with gas diffusion into the fluid (840).

Disclosed is an exhaust gas catalyst wherein the catalyst efficiency is improved by enhancing diffusion of the exhaust gas in a catalyst layer.

A gas path (134) for connecting the material gas diffusing chamber (135) and a material gas introducing tube (133) is configured to have one or more stages.

The syringe may be fabricated from a material that prevents diffusion of the gas from the blood.

A void space allows the gas pocket to dissipate by flow or diffusion of gas into the void space, typically prior to setting the imprintable medium.

So diffusion of pressured gas into the water is prevented.

The fuel cells of the stack incorporate gas diffusion barrier layers at the cathode side thereof.

If the plasma gas swirl is too intense, the element is eroded quickly.

The process can attain a high rate of polymerization with the rate of polymerization being determined not by the diffusion of the monomeric gas.

The rotor rotates together with the exhaust fan to prevent the contaminated gas from diffusing into an indoor area.

Each gas path on the last stage is connected to the material gas diffusing chamber (135) by each of the connecting holes formed on the both ends of each gas path.