Abstract: A method for providing learning information is provided. The method includes the steps of: combining achievements of one or more learner groups for a plurality of learning units to derive learning achievement characteristic information of the one or more learner groups; combining achievements of a target learner for the plurality of learning units to derive learning achievement characteristic information of the target learner; comparing the learning achievement characteristic information of the target learner and the learning achievement characteristic information of the one or more learner groups; and providing learning information to the target learner according to a learning path of the one or more learner groups, on the basis of a result of the comparison.

Abstract: The present invention relates to a portable probe for photoacoustic tomography, capable of performing line-by-line scanning or area-by-area scanning by using a small number of light inputs; and a real-time photoacoustic tomography device. The probe for photoacoustic tomography includes: a lens receiving light inputs from an optical fiber so as to make the same proceed as small diameter parallel light; a Powell lens receiving the small diameter parallel light and generating a line beam of a predetermined thickness, and allowing energy dispersed on a line to be uniform on the entire line; a lens making the line beam pass therethrough such that the line beam has a predetermined width and a reduced thickness so as to be line-focused at a target area; an acoustic reflection glass for separating, from a light path, an acoustic wave outputted from the target area; and an acoustic measurement unit for measuring acoustic strength.

Abstract: According to one aspect of the invention, there is provided a method for searching for documents containing mathematical expressions, the method comprising the steps of: dividing a first document containing mathematical expressions into a plurality of components; comparing the plurality of components with a plurality of other components extracted from a plurality of other documents, with reference to weights respectively assigned to the plurality of components according to types of the components; and determining a document associated with the first document among the plurality of other documents, with reference to a result of the comparison, wherein the weights are adaptively adjusted according to a result of the determination of the document associated with the first document.

Abstract: An embodiment pertains to a method for evaluating efficacy of a drug which increases or decreases the secretion of a particular neurotransmitter, by measuring a concentration change of the particular neurotransmitter in a specific intracerebral site with reference to a brain map, the method comprising the steps of: selecting as a microdialysis target region in the brain map a first site of an animal, which corresponds to a site that the brain map represents as being the highest in the concentration of a first neurotransmitter of which the secretion is increased or decreased by the drug; and injecting the drug to the animal and monitoring a concentration change of the first neurotransmitter in the first site between pre- and post-injection of the drug.

Abstract: Disclosed is a mobile colposcopy device for early diagnosis of cervical cancer, which includes an insertion unit which is inserted into the vagina of a woman, has a penetrating hole formed in one end coming into contact with the uterus, and is provided with a capturing path communicating with the penetrating hole, a capturing unit which is provided in the insertion unit so as to capture the cervix through the capturing path, and a lighting unit which is provided on the capturing path of the insertion unit and irradiates a lighting to the cervix through the penetrating hole. According to the present disclosure, the mobile colposcopy device for early diagnosis of cervical cancer can be simply and easily used so as to perform cervical cancer screening using a mobile colposcopy without environmental constraints including hospitals and allows women to early diagnose cervical cancer.

Abstract: The austenitic stainless steel that does not cause defects such as aging crack or delayed fracture even after the expansion and curling process of 5 steps or more is disclosed. In accordance with an aspect of the present disclosure, an austenitic stainless steel with excellent pipe expanding workability and aging crack resistance includes, in percent (%) by weight of the entire composition, C: 0.01 to 0.04%, Si: 0.1 to 1.0%, Mn: 0.1 to 2.0%, Cr: 16 to 20%, Ni: 6 to 10%, Cu: 0.1 to 2.0%, Mo: 0.2% or less, N: 0.035 to 0.07%, the remainder of iron (Fe) and other inevitable impurities, and the C+N satisfies 0.1% or less, the product of the Md30 (° C.) value and average grain size (?m) satisfies less than ?500.

Abstract: A method for providing a customized education service to a learner is provided. The method includes the steps of: determining a personalized learning objective on the basis of at least one learning objective provided from a learner; determining an objective relevance for at least one learning unit associated with at least one of the learning objective and the personalized learning objective; and recommending the learner a learning solution associated with at least one learning unit for which the objective relevance is not less than a predetermined level, wherein the step of determining the personalized learning objective comprises the step of determining the personalized learning objective on the further basis of the determined objective relevance.

Abstract: Augmented reality glasses with auto coregistration of an invisible field on visible reality which allows eyes to directly recognize a real space and precisely performs coregistration on only diagnosis and treatment information of invisible light, which is emitted from a specific area, to the real space. The augmented reality glasses include a glasses body, an invisible light emission unit configured to emit invisible light toward a target object, an input unit configured to input the invisible light emitted from the target object together with visible light to a waveguide, an information processing unit configured to convert invisible light image information received from the input unit into visible light image information which is recognizable by a person, and an image output unit configured to receive the visible light image information processed in the information processing unit and output the received visible light image information to two eyeballs in the waveguide.

Abstract: A Ti, Nb-added ferritic stainless steel with excellent low-temperature toughness of weld zone according to an embodiment of present disclosure includes, in percent (%) by weight of the entire composition, C: 0.004 to 0.015%, N: 0.004 to 0.015%, Si: 0.01 to 0.7%, Mn: 0.01 to 0.7%, P: 0.0001 to 0.04%, S: 0.0001 to 0.005%, Cr: 10 to 30%, Al: 0.005 to 0.04%, Ti: 0.1 to 0.5%, Nb: 0.1 to 0.6%, Ca: 0.0001 to 0.003%, the remainder of iron (Fe) and other inevitable impurities, satisfies the following equation (1), and Al—Ca—Ti—Mg—O-based oxide and Ti—Nb—C—N carbonitride containing the oxide have an average diameter of 3 to 10 ?m and a distribution density of 4/mm2 or more. {(Ti+0.5*Nb)*(C+N)}/Al>0.

Abstract: Provided is a ferritic stainless steel for an exhaust system heat exchanger and a method of manufacturing the same. The ferritic stainless steel includes, in percent (%) by weight of the entire composition, 0.003 to 0.1% of carbon (C), 0.01 to 2.0% of silicon (Si), 0.01 to 1.5% of manganese (Mn), 0.05% or less of phosphorus (P), 0.005% or less of sulfur (S), 10 to 30% of chromium (Cr), 0.001 to 0.10% of titanium (Ti), 0.001 to 0.15% of aluminum (Al), 0.003 to 0.03% of nitrogen (N), 0.3 to 0.6% of niobium (Nb), 0.01 to 2.5% of molybdenum (Mo), and the remainder of iron (Fe) and other inevitable impurities, wherein TiN precipitates having a size of 0.1 ?m or more are distributed in a surface layer of a ferrite matrix at a concentration of 2.5*104 ea/mm2 or less.

Abstract: According to one aspect of the invention, there is provided a method for searching for documents containing mathematical expressions, the method comprising the steps of: dividing a first document containing mathematical expressions into a plurality of components; comparing the plurality of components with a plurality of other components extracted from a plurality of other documents, with reference to weights respectively assigned to the plurality of components according to types of the components; and determining a document associated with the first document among the plurality of other documents, with reference to a result of the comparison, wherein the weights are adaptively adjusted according to a result of the determination of the document associated with the first document.

Abstract: A method for providing learning information is provided. The method includes: with reference to two or more supplementary learning patterns experienced by a learner, determining an personalized frequency index related to at least one learning unit commonly included in the two or more supplementary learning patterns; and determining a learning unit having a personalized frequency index higher than or equal to a pre-configured reference, as a personalized supplementary learning unit to be provided to the learner. Each of the two or more supplementary learning patterns includes two or more learning units having a predetermined correlation, and the predetermined correlation is acquired from a knowledge map, which includes two or more nodes corresponding to the two or more learning units and at least one link which connects the two or more nodes and is assigned the correlation between the two or more learning units.

Abstract: The present invention relates to a portable probe for photoacoustic tomography, capable of performing line-by-line scanning or area-by-area scanning by using a small number of light inputs; and a real-time photoacoustic tomography device. The probe for photoacoustic tomography includes: a lens receiving light inputs from an optical fiber so as to make the same proceed as small diameter parallel light; a Powell lens receiving the small diameter parallel light and generating a line beam of a predetermined thickness, and allowing energy dispersed on a line to be uniform on the entire line; a lens making the line beam pass therethrough such that the line beam has a predetermined width and a reduced thickness so as to be line-focused at a target area; an acoustic reflection glass for separating, from a light path, an acoustic wave outputted from the target area; and an acoustic measurement unit for measuring acoustic strength.

Abstract: A ferritic stainless steel for automotive exhaust system parts with improved expandability is disclosed. A ferritic stainless steel with improved expandability according to an embodiment of the present disclosure includes, in percent (%) by weight of the entire composition, Cr: 10 to 25%, N: 0.015% or less (excluding 0), Al: 0.005 to 0.04%, Nb: 0.1 to 0.6%, Ti: 0.1 to 0.

Abstract: The present invention relates to a parathyroid sensing system, and includes: a modulator for generating a modulation signal having a predetermined frequency; a lock-in amplifier and a light source which receive information on the modulation signal; an excitation filter for transmitting, among light emitted from the light source, only excitation light that excites parathyroid glands; an emission filter connected to a probe and selectively transmitting only fluorescence emitted from the parathyroid glands; a near-infrared sensor for sensing the autofluorescence that has passed through the emission filter, and converting the sensed autofluorescence into an electric signal; and a speaker for generating an alarm through the electric signal. Through the present invention, the locations of the parathyroid glands may be precisely identified even when lights are turned on in an operating room, and convenience may be provided by alerting a surgeon by means of an alarm when the parathyroid glands are detected.

Abstract: Provided are a semiconductor device and a semiconductor package including the same. The semiconductor device comprises a semiconductor chip body including a first chip pad on a top surface, a passivation film disposed on the semiconductor chip body and a first redistribution layer that is disposed between the passivation film and the semiconductor chip body with an opening to expose a first chip center pad region at least partially overlapping the first chip pad, a first redistribution center pad region connected to the first chip center pad region, and a first edge pad region spaced apart from the first redistribution center pad region, through the passivation film, wherein a top surface of the first chip center pad region and a top surface of the first redistribution center pad region are not disposed on the same plane.

Abstract: The present invention relates to a real-time parathyroid imaging apparatus including: a light source including an excitation filter capable of exciting parathyroid glands; and a camera including an image sensor and an emission filter of which a transmissivity ratio between a visible light region and a near-infrared emission wavelength region is N:1 (here, N<1). Through the present invention, a system may be implemented whereby a surgeon may acquire, in real-time during an operation, an autofluorescence image of the parathyroid glands by using a near-infrared light source, and an auto focus function may be used, and visible light and near-infrared autofluorescence images may be simultaneously fused and acquired without having to turn off the lights in an operating room.

Abstract: The present invention relates to a method, system, and non-transitory computer-readable recording medium for providing learning information. According to the invention, it is possible to consider, in providing supplementary learning information to a learner, both of a supplementary learning pattern common to all learners and a supplementary learning pattern of a specific learner whose characteristics are similar to those of the learner, so that learning units necessary for supplementary learning of the learner may be found accurately and efficiently.

Abstract: A method of manufacturing a semiconductor package includes obtaining a plurality of individual chips classified according to a test bin item as a result of performing an electrical die sorting (EDS) process including testing electrical characteristics of a plurality of chips at a wafer level, packaging the individual chips on corresponding chip mounting regions of a circuit substrate and forming a plurality of individual packages based on position information of the chip mounting regions, each of the individual packages having test bin item information corresponding to the test bin item, classifying the plurality of individual packages according to the test bin item based on the test bin item information, and testing the individual packages classified according to the test bin item.

Abstract: A ferritic stainless steel for an exhaust system heat exchanger having excellent sound absorption properties and a method for manufacturing the same are disclosed. The ferritic stainless steel for an exhaust system heat exchanger having excellent sound absorption properties includes, by weight percent, 0.001 to 0.01% of C, 0.001 to 0.01% of N, 0.2 to 1% of Si, 0.1 to 2% of Mn, 10 to 30% of Cr, 0.001 to 0.1% of Ti, 0.001 to 0.015% of Al, 0.3 to 0.6% of Nb, 0.01 to 2.5% of Mo, and the balance of Fe and other unavoidable impurities, wherein the number of inclusions existing in a ferrite matrix and satisfying the following Formula 1 is 5 ea/mm2 or more.