Abstract: An antenna apparatus for a portable terminal which is light, thin, compact, and small. The antenna apparatus preferably includes a main board equipped with a power feeding part for feeding power and a ground surface for grounding the main board and at least one sub-board, each sub-board which has a ground surface and electrically communicates with the main board, wherein the ground surface of each sub-board receives power from the power feeding part of the main board and resonates.

Abstract: An electronic device is provided. The electronic device includes a first housing a second housing, a first display disposed on the first housing and a second display disposed on the second housing, a connecting member configured to couple the first housing to the second housing such that the first housing and the second housing are foldable relative to each other, and the second surface and the fourth surface face each other when the first housing and the second housing are folded toward each other, a first conductive element disposed within the first housing and between the second surface and the first display, and an intermediate conductive plate disposed within the second housing and between the fourth surface and the second display, the intermediate conductive plate having an opening that faces the first conductive element when the first housing and the second housing are in a folded configuration.

Abstract: Disclosed are an antenna device and an electronic device that includes the antenna device. The antenna device includes a power feeding unit, a ground unit, a radiating unit that is electrically connected to the power feeding unit, and a switching element that selects one or more points from a plurality of different points of the ground unit and connects the radiating unit to the selected one or more points.

Abstract: An antenna apparatus for a portable terminal which is light, thin, compact, and small. The antenna apparatus preferably includes a main board equipped with a power feeding part for feeding power and a ground surface for grounding the main board and at least one sub-board, each sub-board which has a ground surface and electrically communicates with the main board, wherein the ground surface of each sub-board receives power from the power feeding part of the main board and resonates.

Abstract: An antenna apparatus for a portable terminal which is light, thin, compact, and small. The antenna apparatus preferably includes a main board equipped with a power feeding part for feeding power and a ground surface for grounding the main board and at least one sub-board, each sub-board which has a ground surface and electrically communicates with the main board, wherein the ground surface of each sub-board receives power from the power feeding part of the main board and resonates.

Abstract: The present invention provides an apparatus and a method for analyzing materials by using pattern analysis of harmonic peaks. The apparatus for analyzing materials according to the present invention comprises a generating unit generating two or more electromagnetic fields, a detecting unit detecting a magnetization signal generated from a measurement target material as an electromagnetic field is applied to the measurement target material, and an analyzing unit analyzing type of the measurement target material based on a harmonic pattern obtained from the magnetization signal.

Abstract: Disclosed herein is technology for providing a medical image knowledge service. An apparatus for providing a medical image knowledge service according to an embodiment includes an image processing device for acquiring image information of at least a partial region of an analysis target based on a distribution of reactive oxygen species or magnetic particles, and generating final image information of an overall region of the analysis target based on results of analysis of the acquired image information. A medical knowledge service device constructs a medical knowledge model based on the acquired final image information, and provides a medical image knowledge service to a user using the constructed medical knowledge model.

Abstract: A method for multi-dimensional visualization of data performed in a data display apparatus, includes: collecting data obtained by scanning at least one part of a sample, from at least one sensor; and comparing a resolution of 3-dimensional light emitting apparatus and a resolution of the scanned data. Further, the method includes adjusting the resolution of the scanned data to be matched with the resolution of the 3-dimensional light emitting apparatus, when the resolution of 3-dimensional light emitting apparatus is not identical to the resolution of the scanned data; and displaying the data corresponding to the sample in the adjusted resolution by driving the 3-dimensional light emitting apparatus.

Abstract: An apparatus for magnetic particle imaging, the apparatus comprising: a sensing unit configured to detect linear sample signals, which represent the mixed electromagnetic fields, generated from magnetic particles in a sample; a driving unit configured to move the sensing unit in a direction of X-axis, Y-axis, or Z-axis; and a data processing unit configured to rearrange in a matrix linear sample signals detected by the sensing unit that is moved by the driving unit.

Abstract: An antenna apparatus for a portable terminal which is light, thin, compact, and small. The antenna apparatus preferably includes a main board equipped with a power feeding part for feeding power and a ground surface for grounding the main board and at least one sub-board, each sub-board which has a ground surface and electrically communicates with the main board, wherein the ground surface of each sub-board receives power from the power feeding part of the main board and resonates.

Abstract: Disclosed is a surface-penetration reinforcing agent that is used to effectively repair a damaged reinforced concrete structure. The surface-penetration reinforcing agent includes a silicate compound, an acrylate monomer, an amine compound and a silane compound as reactants. Further disclosed is a method for repairing a damaged reinforced concrete structure using the surface-penetration reinforcing agent depending on the aging grade of the reinforced concrete structure. According to the repair method, the surface-penetration reinforcing agent can be used to efficiently repair a damaged reinforced concrete structure depending on the aging grade of the reinforced concrete structure classified by whether or not the reinforcing bars are corroded in damaged portions of the concrete and the degree of carbonation in the concrete.

Abstract: A penetration reinforcing agent for preventing aging of concrete is prepared by using an inorganic silicate compound having an ethoxy or methoxy group and a monomer having a hydroxyl (OH) group. When the penetration reinforcing agent is applied onto the surface of a concrete structure it penetrates the concrete structure where it is hydrolyzed by water existing within the concrete to form silica (SiO2) having a particle size of several nanometers, is gelled by a sol-gel process and reacts with concrete hydrates, so that internal pores of the concrete structure are compactly filled with the reaction products. The penetration reinforcing agent is effective in enhancing the strength of, inhibiting penetration of aging factors into, improving waterproofness of, and preventing neutralization of the concrete structure.

Abstract: Disclosed is a surface-penetration reinforcing agent that is used to effectively repair a damaged reinforced concrete structure. The surface-penetration reinforcing agent includes a silicate compound, an acrylate monomer, an amine compound and a silane compound as reactants. Further disclosed is a method for repairing a damaged reinforced concrete structure using the surface-penetration reinforcing agent depending on the aging grade of the reinforced concrete structure. According to the repair method, the surface-penetration reinforcing agent can be used to efficiently repair a damaged reinforced concrete structure depending on the aging grade of the reinforced concrete structure classified by whether or not the reinforcing bars are corroded in damaged portions of the concrete and the degree of carbonation in the concrete.

Abstract: Disclosed herein is a penetration reinforcing agent for preventing aging of concrete. The penetration reinforcing agent is prepared by using an inorganic silicate compound having an ethoxy or methoxy group and a monomer having a hydroxyl (OH) group. When the penetration reinforcing agent is applied onto the surface of a concrete structure by using a spray gun or a brush, it penetrates the concrete structure where it is hydrolyzed by water existing within the concrete to form silica (SiO2) having a particle size of several nanometers, is gelled by a sol-gel process and reacts with concrete hydrates, so that internal pores of the concrete structure are compactly filled with the reaction products. Therefore, the penetration reinforcing agent is effective in enhancing the strength of the concrete structure, inhibiting penetration of aging factors into the concrete structure, improving waterproofness of the concrete structure and preventing neutralization of the concrete structure.