Abstract: There is provided a rotation part of a rotary machine, the rotation part including: a base unit including a surface constituting fluid channels; a plurality of blade units protruding from the base unit; a plurality of shroud segment support units connected to the plurality of blade units and extending in a parallel direction to the surface of the base unit; a shroud segment disposed between and bonded to adjacent shroud segment support units of the plurality of shroud segment support units; and a first reinforcing unit provided on an intersection portion between a blade unit of the plurality of blade units and a shroud segment support unit of the plurality of shroud segment support units, wherein a distance from a protruding direction center line of the blade unit to an end portion of the shroud segment support unit is greater than a maximum distance from the protruding direction center line of the blade unit to an end portion of the first reinforcing unit.

Abstract: An image-based object counting method includes rasterizing a counting line in an image into counting line pixels; determining two points on a trajectory line included in the image, as target pixels; determining, from the counting line pixels, corresponding pixels that corresponds to the target pixels; determining whether the counting line intersects with the trajectory line based on the target pixels and the corresponding pixels; and determining the number of one or more trajectory lines including the trajectory line that intersect with the counting line as the number of objects that pass through the counting line.

Abstract: Graphene, a composition for preparing graphene, and a method of preparing graphene using the composition are disclosed.