Abstract: Disclosed is a method for quantifying algal for management of water quality, performed by a computing device. The method may include: receiving a remote sensing image of an object of interest; and predicting a water quality variable based on the remote sensing image using a pre-trained algal estimation model.

Abstract: Disclosed is a method for quantifying algal for management of water quality, performed by a computing device. The method may include: receiving a remote sensing image of an object of interest; and predicting a water quality variable based on the remote sensing image using a pre-trained algal estimation model.

Abstract: A medical phantom is an object that models at least a part of the human body by using unit blocks, wherein the unit blocks include: a first unit block having a hexahedral shape of which the inside is empty; and a second unit block. The second unit block has a shape, of which the inside is empty, different from the hexahedral shape The second unit block also has ridges formed at the upper end thereof for stud-and-tube coupling, and has furrows formed at the lower end thereof and enabled to be coupled to the ridges.

Abstract: One embodiment of the present invention relates to a medical phantom which is an object that models at least a part of the human body by using a plurality of unit blocks, wherein the plurality of unit blocks include: a first unit block having a hexahedral shape of which the inside is empty; and a second unit block having a shape, of which the inside is empty, different from the hexahedral shape, having a plurality of ridges formed at the upper end thereof for stud-and-tube coupling, and having a plurality of furrows formed at the lower end thereof and enabled to be coupled to the plurality of ridges. The medical phantom is determined according to a combination form of the first unit block and the second unit block, at least one hole is formed on the lateral surfaces of the first unit block and the second unit block and a medium can be injected through the at least one hole.

Abstract: In a medical phantom using a plurality of unit blocks related to an example of the present invention, the plurality of unit blocks includes a first unit block of a hexahedron shape with an empty interior; and a second unit block of a hexahedron shape with an empty interior, having a plurality of ridges formed on a top and a plurality of furrows formed on a bottom to be combined with the plurality of ridges, and the medical phantom is determined according to a combination form of the first unit block and the second unit block.

Abstract: Provided is method of forming a cluster individually by each sensor node over a sensor network, in which each sensor node has cluster information and authority to assign cluster membership and recognizes a sensor node that is not a cluster member in a radius of the cluster in order to include the recognized sensor node in the cluster as a cluster member. The sensor node that becomes a member of the cluster wirelessly receives an application of the cluster in order to be upgraded. Thus, after initial sensor node setting, a cluster can be formed automatically and a program suitable for each cluster can be upgraded without human intervention.