Abstract: A cyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same, and the compound used as a material of an organic material layer in the organic light emitting device and providing improved efficiency, low driving voltage and improved lifetime characteristics of the organic light emitting device.

Abstract: A subspace pursuit apparatus for compressive sensing reconstruction includes: a first inner product unit configured to calculate a correlation between a residual vector and column vectors of a sensing matrix by calculating an inner product of them; a first sorting unit coupled to the first inner product unit and configured to select K column vector indices having highest correlations, where K is a sparsity level; a second inner product unit configured to calculate a matrix for calculating a pseudo-inverse matrix required for solving a least-squares from the sensing matrix to store in the Gram matrix buffer; a Cholesky inversion unit configured to perform a Cholesky decomposition of the matrix stored in the Gram matrix buffer and calculate an inverse of a decomposed matrix; and a sparse solution estimator configured to estimate the sparse solution from a matrix value of the matrix based on the inverse of the decomposed matrix.

Abstract: An enamel composition, a method for preparing an enamel composition, and a cooking appliance including an enamel composition are provided. The enamel composition may include a base glass frit, and a catalytic glass frit. Further, the enamel composition may include 3 to 20 parts by weight of the catalytic glass frit based on 100 parts by weight of the base glass frit.

Abstract: A system for determining a filter for evaluating a dissolution quality of a binder solution for a secondary battery electrode according to the present technology includes: a pressure container which accommodates a binder solution; a pressure medium supply source which supplies pressure medium of a predetermined pressure to the pressure container; a filter which is connected to the pressure container by a pipe; a flow rate measuring unit which measures a flow rate of the binder solution filtered by the filter; and a determination unit which measures a time point when a flow rate reaches a specific value predetermined in consideration of an initial flow rate by repeating measurement of the flow rate using each filter having a different pore size, and determines a filter having a filter size in an optimal pore size range based on the time point.

Abstract: An electronic device structure having a shielding structure includes a substrate with an electronic component electrically connected to the substrate. The shielding structure includes conductive spaced-apart pillar structures that have proximate ends connected to the substrate and distal ends spaced apart from the substrate, and that are laterally spaced apart from the first electronic component. In one embodiment, the conductive pillar structures are conductive wires attached at one end to the substrate with an opposing end extending away from the substrate so that the conductive wires are provided generally perpendicular to the substrate. A package body encapsulates the electronic component and the conductive spaced-apart pillar structures. In one embodiment, the shielding structure further includes a shielding layer disposed adjacent the package body, which is electrically connected to the conductive spaced-apart pillar structures. In one embodiment, the electrical connection is made through the package.

Abstract: A word embedding method and apparatus and a word search method are provided, wherein the word embedding method includes training a word embedding model based on characteristic information of a chemical substance, and acquiring an embedding vector of a word representing the chemical substance from the word embedding model, wherein the word embedding model is configured to predict a context word of an input word.

Abstract: The present disclosure relates to an antibacterial glass composition and a manufacturing method thereof. The antibacterial glass composition according to the present disclosure comprises: 20-45 wt % of SiO2; 1-30 wt % of B2O3; 10-30 wt % of ZnO; 5-25 wt % of one or more of Na2O, K2O and Li2O; 0.1-10 wt % of one or more of Al2O3 and TiO2; 0.1-5 wt % of NaF; and 1-10 wt % of one or more of Co3O4, CuO and Fe2O3, thereby causing no deterioration in durability and ensuring excellent antibacterial activity.

Abstract: The present disclosure relates to an insulated gate bipolar transistor (IGBT) and, more particularly, to an insulated gate bipolar transistor, in which a barrier region is in a mesa between adjacent trench gates to divide the width of the mesa, thereby inducing the accumulation of hole carriers, and thus reducing an on-resistance (e.g., of the IGBT).

Abstract: An enamel composition, a method for preparing an enamel composition, and a cooking appliance are provided. The enamel composition may include 15 to 50 wt % of phosphorus pentoxide (P2O5); 1 to 20 wt % of silicon dioxide (SiO2); 1 to 20 wt % of boron oxide (B2O3); 5 to 20 wt % of one or more of lithium superoxide (Li2O), sodium oxide (Na2O), or potassium oxide (K2O); 1 to 5 wt % of one or more of sodium fluoride (NaF), calcium fluoride (CaF2), or aluminum fluoride (AlF3); 1 to 35 wt % of one or more of magnesium oxide (MgO), barium oxide (BaO), or calcium oxide (CaO); and 5 to 30 wt % of one or more of titanium dioxide (TiO2), vanadium pentoxide (V2O5), molybdenum trioxide (MoO3), or iron oxide (Fe2O3). With such an enamel composition, cleaning may be performed at a low temperature for thermal decomposition, and contaminants, such as fat, may be more completely removed.

Abstract: An enamel composition, a method for preparing an enamel composition, and a cooking appliance are provided. The enamel composition may include silicon dioxide (SiO2) at 25 to 50 wt %; boron oxide (B2O3) at 1 to 15 wt %; one or more of lithium superoxide (Li2O), sodium oxide (Na2O), or potassium oxide (K2O) at 10 to 20 wt %; sodium fluoride (NaF) at 1 to 5 wt %; zinc oxide (ZnO) at 1 to 10 wt %; and one or more of titanium dioxide (TiO2), molybdenum trioxide (MoO3), bismuth oxide (Bi2O3), or cerium dioxide (CeO2) at 20 to 40 wt %, such that a heating time required for cleaning is shortened and cleaning is possible without carrying out a water soaking process.

Abstract: A structure of a substrate is provided for application in an electric power module. The substrate includes element regions, on which a plurality of semiconductor elements are arranged, a center region that defines a space among the element regions, an input terminal region, on which an input terminal for applying an electric current to the substrate is disposed, and one or more slit insulation portions that are defined to face toward sides, respectively, of the element regions adjacent to the input terminal region, which are among the element regions. The slit insulation portions extend toward the center region in such a manner that an electric current applied through the input terminal region flows into the center region.

Abstract: A method of fabricating a battery protection circuit package according to one aspect of the present invention includes forming a first mounting structure by mounting battery protection circuit elements on a printed circuit board (PCB), forming a second mounting structure by mounting the first mounting structure on a lead frame which comprises an input/output terminal portion for external connection and at least one metal tab for battery cell connection, forming an encapsulation structure by encapsulating the second mounting structure with a molding material to encapsulate at least a part of the battery protection circuit elements while exposing the input/output terminal portion and the at least one metal tab of the lead frame, and bonding at least one flexible printed circuit board (FPCB) to the input/output terminal portion of the encapsulation structure.

Abstract: A compound represented by Chemical Formula 1 and an organic light emitting device comprising the same, the compound used as a material of an organic material layer of the organic light emitting device and providing improved efficiency, low driving voltage, and improved lifetime characteristics.

Abstract: Provided are anthracene derivatives of Chemical Formula 1: wherein: X1 is O or S; R1 and R2 are the same as or different from each other, and each independently is hydrogen, deuterium, a nitrile group, a halogen groups a substituted or unsubstituted alkyl group, a substituted or unsubstituted silyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group, or bond to adjacent groups to form a substituted or unsubstituted ring; Ar is a substituted or unsubstituted heteroaryl group comprising O or S; and a is an integer of 0 to 9, and b is an integer of 0 to 8, and when a is 2 or greater, R1s are the same as or different from each other, and when b is 2 or greater, R2s are the same as or different from each other. Also provided are organic light emitting devices comprising same.

Abstract: An electronic device structure having a shielding structure includes a substrate with an electronic component electrically connected to the substrate. The shielding structure includes conductive spaced-apart pillar structures that have proximate ends connected to the substrate and distal ends spaced apart from the substrate, and that are laterally spaced apart from the first electronic component. In one embodiment, the conductive pillar structures are conductive wires attached at one end to the substrate with an opposing end extending away from the substrate so that the conductive wires are provided generally perpendicular to the substrate. A package body encapsulates the electronic component and the conductive spaced-apart pillar structures. In one embodiment, the shielding structure further includes a shielding layer disposed adjacent the package body, which is electrically connected to the conductive spaced-apart pillar structures. In one embodiment, the electrical connection is made through the package.

Abstract: A switchable display system for providing virtual reality or augmented reality using a color calibration display apparatus may comprise: an augmented reality data server configured to provide virtual reality and augmented reality information; and a color calibration display apparatus using a color calibration display module configured to perform color calibration according to ambient illuminance in a use environment.

Abstract: A convertible electronic device includes a display module including a first region and a second region surrounding the first region and having a lower light transmittance than the first region; a camera module disposed on the display module to overlap the first region; a first housing which accommodates the display module therein, and includes a camera module accommodating portion protruding outwardly to overlap the camera module; a keyboard; a second housing which accommodates the keyboard therein; and a hinge member connecting the first housing to the second housing rotatably to each other with respect to a rotation shaft. The first and second housings are in a first folded state where the first and second housings overlap each other to allow front surfaces to face each other or in a second folded state where the first and second housings overlap each other to allow rear surfaces to face each other.

Abstract: An electronic device and an method of the electronic device are provided, where the electronic device maintains a context that does not reflect a request for a secret conversation, in response to the request for the secret conversation being received from a first user, and generates a response signal to a voice signal of a second user based on the maintained context, in response to an end of the secret conversation with the first user.

Abstract: A super junction semiconductor device includes a substrate having a first conductive type, a blocking layer positioned on the substrate, the blocking layer including first conductive type pillars and second conductive type pillars, each extending in a vertical direction and arranging alternatively in a horizontal direction, and a gate structure disposed on the blocking layer, the gate structure extending in the horizontal direction and being electrically connected to ones of the first and second conductive type pillars. Thus, oscillation phenomena may be suppressed.

Abstract: The present invention relates to an insulated gate bipolar transistor (IGBT) and, more particularly, to an insulated gate bipolar transistor that has multiple mesas having different widths, configured to promote the buildup and accumulation of hole carriers, thereby facilitating relatively easy subsequent processing, while maximizing conductivity modulation.