Abstract: An electronic device includes a housing including a head part that is rotatable, a plurality of microphones disposed in the head part, a sensor for detecting a rotation angle of the head part, a memory storing data classifying feature parameters for each of the plurality of microphones according to a plurality of rotation angles, a motor configured to rotate the head part; and a processor. The processor implements the method, including when detecting sound by the plurality of microphones originating from a sound source, driving the motor to rotate the head part until a designated portion of a surface of the head part is facing the sound source, and when the designated portion of the surface is facing the sound source, adjusting feature parameters for each the plurality of microphones based on the classified feature parameters and a current angle of the head part.

Abstract: The present invention provides a dental implant including: a fixture and an abutment including a coupling leg, and the fixture and the abutment are elastically coupled with each other, the dental implant including: a fixture axial hole inner inclined surface in which an inner diameter of an axial hole is gradually and downwardly reduced from a predetermined position of an inner inclined surface of the fixture; a first coupling part formed with a coupling hole at a predetermined position of the fixture; and a first associated coupling part formed with a coupling protrusion complementarily coupled with the first coupling part, wherein when the first associated coupling part is separated from the first coupling part by rotating the abutment, the coupling protrusion upwardly pushes the abutment from the fixture by elastic repulsion with the axial hole inner inclined surface of the fixture, thus the abutment becomes separated from the fixture.

Abstract: Disclosed is an electronic device including a memory; and a processor, wherein the memory stores instructions which when executed, cause the processor to load a virtual server in the memory when a connection of a camera to the electronic device is detected, receive at least one image from the camera, control processing of the at least one image through the virtual server, and provide the at least one image processed through the virtual server to an application corresponding to the virtual server.

Abstract: A resistive random access memory device is provided. The resistive random access memory device includes a first electrode, a second electrode, and an electrolyte layer disposed between the first electrode and the second electrode. One of the first electrode and the second electrode includes an ion supply layer providing two or more kinds of metal ions to the electrolyte layer. The two or more kinds of metal ions have different mobilities in the electrolyte layer. Two or more conductive bridges are generated by the two or more kinds of metal ions, respectively.

Abstract: Disclosed is a micro-electron column including nanostructure tips each of which has a tubular, columnar, or blocky structure ranging in size from several nanometers to dozens of nanometers. In the micro-electron column, the nanostructure tips can easily emit electrons because a high electric field is generated at the end of the nanostructure tips when a voltage is applied to the nanostructure tips, and an induction electrode is disposed between the electron emitter and a source lens so as to help electrons emitted from the electron emitter to enter an aperture of a first lens electrode layer of the source lens, thereby realizing improved performance of the micro-electron column. In the micro-electron column, the size of the nanostructure tips may be larger than that of the aperture of a source lens.

Abstract: An apparatus for bi-directionally mining a manganese nodule includes a traveling device to travel in a predetermined traveling direction, collecting devices installed at both ends of the traveling device, respectively, to collect the manganese nodule, and a control device to sense the traveling direction of the traveling device and to drive one of the collecting devices installed at both ends of the traveling device, which is placed in the sensed traveling direction.

Abstract: Disclosed is a micro-electron column having nanostructure tips. The micro-electro column includes an electron emission source that is provided with a plurality of nanostructure tips and emits electrons, a source lens, a deflector, and a focusing lens. The nanostructure tips of the electron emission source spread over an area that is larger than that of an aperture of a first lens electrode of a source lens, which is nearest to the electron emission source.

Abstract: Disclosed is a micro-electron column including nanostructure tips each of which has a tubular, columnar, or blocky structure ranging in size from several nanometers to dozens of nanometers. In the micro-electron column, the nanostructure tips can easily emit electrons because a high electric field is generated at the end of the nanostructure tips when a voltage is applied to the nanostructure tips, and an induction electrode is disposed between the electron emitter and a source lens so as to help electrons emitted from the electron emitter to enter an aperture of a first lens electrode layer of the source lens, thereby realizing improved performance of the micro-electron column. In the micro-electron column, the size of the nanostructure tips may be larger than that of the aperture of a source lens.

Abstract: Disclosed is a buffer system for mining a deep seafloor mineral resource. The buffer system includes a hopper part that introduces and stores a crushed mineral resource to discharge the crushed mineral resource upward, a first pipe that communicates with an upper portion of the hopper part to introduce the mineral resource, a feeder part provided under the hopper part to discharge the mineral resources upward, a second pipe that communicates with the feeder part and lifts the mineral resource, a hydraulic part provided under the hopper part to convert power received from a surface boat into hydraulic power to operate at least one actuator and a driving motor to introduce the mineral resource into the first pipe, and a structure frame coupled to a lifting pipe to transmit an external load applied to the buffer system, and constituting an external frame of the buffer system to protect internal units.

Abstract: A robot for mining a manganese nodule on a deep sea floor. The apparatus includes a plurality of moving apparatuses detachably disposed in parallel with each other; a mining apparatus installed to a front end of the moving apparatuses to mine a manganese nodule; a transferring apparatus installed to an upper portion of the moving apparatuses to crush the manganese nodule in a constant size or less such that the manganese nodule is transferred to an external; a power control measuring unit installed to an upper portion of the moving apparatuses for providing power to the moving apparatuses and controlling operations of the mining apparatus and the transferring apparatus; a structure frame for connecting the moving apparatuses to each other and for supporting the mining apparatus, the transferring apparatus and the power control measuring unit; and a buoyancy unit installed to a top end of the structure frame.

Abstract: A semantic-based search system includes a log generating unit configured to generate a common log storing knowledge corresponding to general knowledge and a user log stored by reflecting user preference, an instance analyzing unit configured to analyze vector characteristics corresponding to an instance among interpretation alternatives according to a keyword input by a user, a weighted value calculating unit configured to calculate weighted values of confidence values and cosine similarity values of interpretation alternatives including vector characteristics of the instance with respect to at least an one of the common log and the user log, and an aligning unit configured to align rankings of the interpretation alternatives according to the keyword input on the basis of the calculated weight values of the confidence values and the cosine similarity values.

Abstract: Disclosed is an apparatus for bi-directionally mining a manganese nodule. The apparatus includes a traveling device to travel in a predetermined traveling direction, collecting devices installed at both ends of the traveling device, respectively, to collect the manganese nodule, and a control device to sense the traveling direction of the traveling device and to drive one of the collecting devices installed at both ends of the traveling device, which is placed in the sensed traveling direction.

Abstract: An apparatus and a method for searching for personalized content based on a user's comment are provided and designed to search for and provide the personalized content based on a user's preference using a user comment-based search technique, thereby raising user's satisfaction with search results and enhancing search accuracy.

Abstract: A microfluidic disk includes: a disk-shaped main body; a receiving container; an injection channel; a mixing channel; a reaction container; and a discharge container.

Abstract: A system and method for managing a mashup service based on the content of media content are provided. The system and method infer tasks related to the content of media content that a user is currently viewing based on user profile information, and create and provide a personalized mashup service to execute a selected task, thereby overcoming restrictions and limitations in providing information in the existing content reproducing environment and improving user's viewing environment for media content.

Abstract: Disclosed is a buffer system for mining a deep seafloor mineral resource. The buffer system includes a hopper part that introduces and stores a crushed mineral resource to discharge the crushed mineral resource upward, a first pipe that communicates with an upper portion of the hopper part to introduce the mineral resource, a feeder part provided under the hopper part to discharge the mineral resources upward, a second pipe that communicates with the feeder part and lifts the mineral resource, a hydraulic part provided under the hopper part to convert power received from a surface boat into hydraulic power to operate at least one actuator and a driving motor to introduce the mineral resource into the first pipe, and a structure frame coupled to a lifting pipe to transmit an external load applied to the buffer system, and constituting an external frame of the buffer system to protect internal units.

Abstract: Disclosed is a robot for mining a manganese nodule on a deep sea floor. The apparatus includes a plurality of moving apparatuses detachably disposed in parallel with each other; a mining apparatus installed to a front end of the moving apparatuses to mine a manganese nodule; a transferring apparatus installed to an upper portion of the moving apparatuses to crush the manganese nodule in a constant size or less such that the manganese nodule is transferred to an external; a power control measuring unit installed to an upper portion of the moving apparatuses for providing power to the moving apparatuses and controlling operations of the mining apparatus and the transferring apparatus; a structure frame for connecting the moving apparatuses to each other and for supporting the mining apparatus, the transferring apparatus and the power control measuring unit; and a buoyancy unit installed to a top end of the structure frame.

Abstract: A semantic-based search system includes a log generating unit configured to generate a common log storing knowledge corresponding to general knowledge and a user log stored by reflecting user preference, an instance analyzing unit configured to analyze vector characteristics corresponding to an instance among interpretation alternatives according to a keyword input by a user, a weighted value calculating unit configured to calculate weighted values of confidence values and cosine similarity values of interpretation alternatives including vector characteristics of the instance with respect to at least an one of the common log and the user log, and an aligning unit configured to align rankings of the interpretation alternatives according to the keyword input on the basis of the calculated weight values of the confidence values and the cosine similarity values.

Abstract: A microfluidic disk includes: a disk-shaped main body; a receiving container; an injection channel; a mixing channel; a reaction container; and a discharge container.

Abstract: A similar contents searching apparatus based on user preference and a similar contents searching method thereof are provided. The present invention searches similar contents based on user preference using user comments that are extracted from texts input as users' responses to contents, and provides the searched similar contents. Accordingly, a similar contents search result is good in quality, thus enhancing the reliability of search.