Abstract: The disclosure relates to a soil distribution planning system. The soil distribution planning system according to an embodiment includes a grid-model generation module configured to receive information about three-dimensional (3D) topography, ground and a target model and generate a 3D grid model by dividing a target area; an earthwork-volume calculation module configured to calculate an earthwork volume of each grid model generated by the grid-model generation module and store the calculated earthwork volume in a database; and an earthwork-volume distribution module configured to distribute the earthwork volume of a cutting area to a banking area based on the earthwork volume stored in the database.

Abstract: A sealed unbonded membrane electrode assembly includes a first gas diffusion layer and a second gas diffusion layer each having a peripheral border and an active region a catalyst coated membrane, having an active region, interposed between the first gas diffusion layer and the second gas diffusion layer; and a frame member; wherein the frame member envelops the peripheral border of the first gas diffusion layer and the second gas diffusion layer and is sealed to the catalyst-coated membrane; and wherein the catalyst-coated membrane is unbonded to the first and second gas diffusion layers in the active regions thereof.

Abstract: A fuel cell electric power generation system using air as both a coolant and an oxidant comprises an electric power generation subsystem, an air filter subsystem, a power and control electronics unit (PEU) subsystem comprising a DC/DC converter, and an air fan subsystem. The subsystems are arranged such that air circulation through the system is improved and the risk of moisture damage to sensitive PEU components is reduced. In one embodiment, the air filter subsystem is positioned ahead of the PEU subsystem, which is positioned ahead of the power generation subsystem, which is positioned ahead of the air fan subsystem in the direction of air flow, such that air is drawn by the air fan subsystem through the air filter subsystem, over the PEU subsystem, and through the electric power generation subsystem, providing filtered air to cool the PEU prior to entering the fuel cell stack to provide oxygen for the electrochemical reaction.

Abstract: A membrane electrode assembly comprises an edge seal member, the edge seal member having a first compressive surface and an opposing second compressive surface wherein the first compressive surface comprises a seal protrusion and the opposing second compressive comprises an inner and outer seal protrusion. The seal protrusion on the first compressive surface is positioned asymmetrically in relation to the inner and outer seal protrusions on the second compressive surface such that the centerline of the seal protrusion on the first compressive surface is positioned between the centerline of the inner seal protrusion and the centerline of the outer seal protrusion on the second compressive surface. The seal protrusions may be shaped such that the base is wide and narrows toward a contacting end thereof, wherein the contacting end is in contact with a surface of a flow field plate.

Abstract: A fuel cell electric power generation system using air as both a coolant and an oxidant comprises an electric power generation subsystem, an air filter subsystem, a power and control electronics unit (PEU) subsystem comprising a DC/DC converter, and an air fan subsystem. The subsystems are arranged such that air circulation through the system is improved and the risk of moisture damage to sensitive PEU components is reduced. In one embodiment, the air filter subsystem is positioned ahead of the PEU subsystem, which is positioned ahead of the power generation subsystem, which is positioned ahead of the air fan subsystem in the direction of air flow, such that air is drawn by the air fan subsystem through the air filter subsystem, over the PEU subsystem, and through the electric power generation subsystem providing filtered air to cool the PEU prior to entering the fuel cell stack to provide oxygen for the electrochemical reaction.