Abstract: A bulk-acoustic wave resonator includes: a substrate; a membrane layer forming a cavity with the substrate; a lower electrode disposed on the membrane layer; an insertion layer disposed to cover at least a portion of the lower electrode; a piezoelectric layer disposed on the lower electrode to cover the insertion layer; and an upper electrode at least partially disposed on the piezoelectric layer, wherein the upper electrode includes a reflection groove disposed on the insertion layer.

Abstract: An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer. The organic layer includes a first compound represented by Formula 1 and a second compound represented by Formula 2. The first compound may be included in an emission layer, and the second compound may be included in an electron transport region.

Abstract: A display device includes pixels. Each of the pixels includes: a first transistor including a gate electrode connected to a first node, a first electrode connected to a second node, and a second electrode connected to a third node; a second transistor including a gate electrode connected to a first scan line, a first electrode connected to a data line, and a second electrode connected to the second node; a first sub-transistor including a gate electrode connected to the first scan line, a first electrode connected to the first node, and a second electrode connected to a fourth node; and a second sub-transistor including a gate electrode connected to the first scan line, a first electrode connected to the fourth node, and a second electrode connected to the third node. A channel width of the second sub-transistor is wider than a channel width of the first sub-transistor.

Abstract: A question-and-answer system providing an appropriate answer for a vehicle- related FAQ by using deep learning, and corresponding method are provided. The question-and-answer system includes: a memory that stores a plurality of representative questions to match a plurality of answers corresponding to the plurality of representative questions, respectively; a learning module configured to output a representative question corresponding to an input sentence from among the stored plurality of representative questions; and an output module configured to search the memory or an answer that matches the output representative question and output the found answer.

Abstract: An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer. The organic layer includes a first compound represented by Formula 1 and a second compound represented by Formula 2. The first compound may be included in an emission layer, and the second compound may be included in an electron transport region.

Abstract: A bulk acoustic resonator includes a first electrode disposed on an upper side of a substrate, a piezoelectric layer disposed on an upper surface of the first electrode, and a second electrode disposed on an upper surface of the piezoelectric layer, wherein an upper surface of at least one of the first electrode and the second electrode has a recess region, wherein a depth of the recess region is D, a width of the recess region is W, and a resonance frequency is F, and ln is a natural logarithm, and wherein [{ln(D*W)}/(?0.59*F)] is [[ln{0.008 (?m)2}]/{?0.59*(3.5 GHz)}] or more and [[ln{0.022 (?m)2}]/{?0.59*(3.5 GHz)}] or less.

Abstract: A display device includes pixels. Each of the pixels includes: a first transistor including a gate electrode connected to a first node, a first electrode connected to a second node, and a second electrode connected to a third node; a second transistor including a gate electrode connected to a first scan line, a first electrode connected to a data line, and a second electrode connected to the second node; a first sub-transistor including a gate electrode connected to the first scan line, a first electrode connected to the first node, and a second electrode connected to a fourth node; and a second sub-transistor including a gate electrode connected to the first scan line, a first electrode connected to the fourth node, and a second electrode connected to the third node. A channel width of the second sub-transistor is wider than a channel width of the first sub-transistor.

Abstract: The present invention relates to a biaryl derivative expressed by the chemical formula 1, a method for producing the biaryl derivative, a pharmaceutical composition comprising same, and use of same, the biaryl derivative expressed by the chemical formula 1, as a GPR120 agonist, promoting GLP-1 generation in the gastro-intestinal tract, reducing insulin resistance in the liver, muscles and the like from anti-inflammatory activity in the macrophage, pancreatic cells and the like, and allowing effective use in prevention or treatment of inflammation or metabolic diseases such as diabetes, complications from diabetes, obesity, non-alcoholic fatty liver disease, fatty liver disease, and osteoporosis.

Abstract: A storage device includes a nonvolatile memory device and a controller that accesses the nonvolatile memory device based on a request of an external host device, receives a first clock signal from the external host device, generates a second clock signal through frequency multiplication of the first clock signal, and communicates with the external host device based on the second clock signal. The controller requests the external host device to adjust a multiplication ratio for the frequency multiplication of the first clock signal.

Abstract: An organic light-emitting device including: a first electrode; a second electrode facing the first electrode; an emission layer between the first electrode and the second electrode; and an electron transport region between the second electrode and the emission layer, wherein the emission layer includes a first host and a second host, the first host includes a first compound represented by Formula 1, the second host includes at least one selected from a second compound represented by Formula 2 and a third compound represented by Formula 3, and the hole transport region includes an amine-based compound represented by Formula 40:

Abstract: Compounds having the chemical formula 1, a method for producing the compounds of chemical formula 1, a pharmaceutical composition comprising same, and use thereof as a GPR120 agonist for prevention or treatment of inflammation or metabolic diseases such as diabetes, complications from diabetes, obesity, non-alcoholic fatty liver disease, fatty liver disease, and osteoporosis.

Abstract: The described technology relates to an organic light emitting diode including: a first electrode; a second electrode overlapping the first electrode; an organic emission layer between the first electrode and the second electrode; and a capping layer on the second electrode, wherein the capping layer has an absorption rate of 0.25 or more for light having a wavelength of 405 nm, thereby preventing degradation of the organic emission layer by blocking the light of the harmful wavelength region and providing the organic light emitting diode in which a blue emission efficiency is not deteriorated.

Abstract: An electronic device includes: a power supply to supply a first power and a second power; a first solid state drive (SSD) backplane and a second SSD backplane to receive the first power from the power supply, each of the first solid state drive (SSD) backplane and the second SSD backplane including two or more SSDs; and a baseboard to receive the second power from the power supply, to independently power on and power off the first SSD backplane and the second SSD backplane, and to access the SSDs of an SSD backplane that is in a power-on state from among the first SSD backplane and the second SSD backplane. In response to an increase in temperature of an SSD backplane that is in a power-off state, at least one SSD of the SSD backplane that is in the power-off state may be powered on.

Abstract: A redundant array of independent disks (RAID) storage device including; a memory device including first memory devices configured to store at least one of data chunks and corresponding parity (data chunks/parity) and a second memory device configured to serve as a spare memory region, and a RAID controller including a RAID internal memory configured to store a count table and configured to control performing of a rebuild operation in response to a command received from a host, wherein upon identification of a failed first memory device, the RAID controller accesses used regions of non-failed first memory devices based on the count table and rebuilds data of the failed first memory device using the second memory device.

Abstract: A bulk-acoustic wave resonator includes: a first electrode; a piezoelectric layer at least partially disposed on an upper portion of the first electrode; and a second electrode disposed to cover at least a portion of the piezoelectric layer. The second electrode includes a frame disposed at an edge of an active region of the bulk-acoustic wave resonator, and the first electrode, the piezoelectric layer and the second electrode are disposed to overlap one another at the edge of the active region. The frame includes a wall disposed at the edge of the active region and a trench formed on an internal side of the wall. An internal boundary line of the trench has a concave-convex shape in a plane parallel to an upper surface of the frame.

Abstract: The described technology relates to an organic light emitting diode including: a first electrode; a second electrode overlapping the first electrode; an organic emission layer between the first electrode and the second electrode; and a capping layer on the second electrode, wherein the capping layer has an absorption rate of 0.25 or more for light having a wavelength of 405 nm, thereby preventing degradation of the organic emission layer by blocking the light of the harmful wavelength region and providing the organic light emitting diode in which a blue emission efficiency is not deteriorated.

Abstract: An organic light-emitting device includes a first electrode; a second electrode; an organic layer between the first electrode and the second electrode, the organic layer including an emission layer, and an electron transport region between the emission layer and the second electrode. The emission layer includes a first compound represented by Formula 1 and a second compound represented by any one of Formulae 2-1 to 2-5. The electron transport region includes a third compound represented by Formula 7. The organic light-emitting device may have low driving voltage, high efficiency, and a long lifespan.

Abstract: An apparatus for detecting internal defects in a transformer is provided. The apparatus detecting internal defects that arise in the interior by integrating an electrode for electrically detecting defects and a sensor for detecting internal gas into a single body and inserting same into the interior. The apparatus for detecting internal defects in a transformer according to the present invention comprises: a metal member of a set length; a plurality of electrodes, disposed around the metal member, for detecting electrical signals generated due to internal defects of the transformer; an insulating member formed so as to contain the metal member and plurality of electrodes; and a gas sensor, installed at the end of the metal member, for detecting gas inside the transformer.