Abstract: A ballistocardiogram sensor according to an embodiment of the inventive concept includes a lower substrate including a support part, a plurality of connection parts, and a vertical movement part, a lower electrode on the lower substrate, a piezoelectric sensing layer on the lower electrode, and an upper electrode on the piezoelectric sensing layer. The vertical movement part is spaced apart from the support part with the connection parts therebetween. The connection parts connect the vertical movement part and the support part. The piezoelectric sensing layer vertically overlaps the vertical movement part. The connection parts may have a serpentine shape.

Abstract: The liquefied gas storage tank includes a primary barrier, a primary insulation wall, a secondary barrier, and a secondary insulation wall. In a state where unit elements are arranged adjacent to each other, each of the unit elements being formed by stacking the secondary insulation wall, the secondary barrier, and a fixed insulation wall which is a part of the primary insulation wall, the primary insulation wall may comprise: a connection insulation wall provided in the space between the adjacent fixed insulation walls; first slits formed between the fixed insulation walls and the connection insulation wall when the connection insulation wall is inserted and installed between the adjacent fixed insulation walls; a plurality of second slits formed in a lengthwise direction and a widthwise direction of the fixed insulation walls; and a first insulating filler material for filling the first slits.

Abstract: The present invention relates to an OLED pixel compensation circuit for removing a substrate effect. The pixel compensation circuit according to the present invention uses six transistors and two storage batteries to fix both a source voltage and a body voltage of a driving transistor that drives an OLED, thereby having the effects of eliminating errors due to a substrate effect and presenting more accurate pixel compensation results.

Abstract: A refrigerant cycle pressure control system includes: a heat exchanger cooling boil-off gas received from a storage tank; a refrigerant cycle including a refrigerant circulation line, a refrigerant compressor, and an expander; an inventory tank storing the refrigerant to be charged to the refrigerant cycle; a refrigerant supply line connecting the inventory tank to an upstream side of the refrigerant compressor to replenish the refrigerant cycle with the refrigerant; a refrigerant discharge line connecting a downstream side of the refrigerant compressor to the inventory tank to discharge the refrigerant from the refrigerant cycle to the inventory tank; and a pressure regulation line branched off of the refrigerant discharge line. The refrigerant cycle is depressurized by discharging the refrigerant from the refrigerant cycle through the refrigerant discharge line or the pressure regulation line.

Abstract: A coil component includes a body; first and second coil portions spaced apart from each other in the body; first and second external electrodes disposed on the body to be spaced apart from each other and connected to both ends of the first coil portion; and first and second ground electrodes spaced apart from each other on the body and connected to both ends of the second coil portion.

Abstract: The present invention relates to a coating composition for an in-vivo implantable prosthesis including a photoinitiator, a crosslinking agent, and a phosphorylcholine (pc) monomer having an acrylate group, a method of coating an in-vivo implantable prosthesis using the coating composition, and a cosmetic prosthesis coated with the crosslinked polyphosphorylcholine. An in-vivo implantable prosthesis coated with crosslinked polyphosphorylcholine may be manufactured by a simple method of applying a coating composition including a photoinitiator, a crosslinking agent, and a phosphorylcholine (pc) monomer having an acrylate group according to the present invention, and then irradiating uv rays. The crosslinked polyphosphorylcholine coating may provide hydrophilicity for the surface and may also remarkably reduce adsorption of proteins and fibroblasts, which may cause side effects such as capsular contracture.

Abstract: Disclosed is a hot-stamping component, which includes a base steel plate; and a plated layer on the base steel plate and including a first layer, a second layer, and an intermetallic compound portion having an island shape in the second layer, wherein the first layer and the second layer are sequentially stacked, and an area fraction of the intermetallic compound portion with respect to the second layer is an amount of 20% to 60%.

Abstract: Provided is a flexible pressure sensor. The flexible pressure includes: a lower structure; and an upper structure on the lower structure, wherein the lower structure includes: a flexible substrate; and first electrodes on the flexible substrate and second electrode spaced apart from the first electrodes, and the upper structure includes: a support; first protrusion structures integrally connected to the support to protrude from a bottom surface of the support; and second protrusion structures integrally connected to the support to protrude from the bottom surface of the support, the second protrusion structures being spaced apart from the first protrusion structures, wherein the first protrusion structures are in contact with a top surface of the flexible substrate, the second protrusion structures are vertically spaced apart from the first and second electrodes, and when viewed in a plan view, the first protrusion structures are configured to completely surround the second protrusion structures.

Abstract: According to the present invention, it is possible to provide a composition comprising a resin component and a filler component comprising a filler having a specific gravity of 3 or more and a filler having a specific gravity of less than 3, which achieves a low specific gravity effect in a state where a filler is filled in a high content and in a state where realization of physical properties is sufficiently secured, and has improved storage stability without deterioration of physical properties such as a thermal conductivity, and a product comprising a heating element and the composition or a cured product thereof in thermal contact with the heating element.

Abstract: The present invention relates to a new window cover film protecting a flexible display panel. Specifically, provided is a window cover film protecting a surface of a display device, the window cover film including a protective film formed on a base layer or a hard coating layer of a hard coating film having the base layer and the hard coating layer, and having no problem that the window cover film cannot be used as a display window cover film because a part of the protective film is not peeled off due to static electricity generated in the protective film, the base layer, or the hard coating layer when the protective film is peeled off, and the protective film remains on the base layer or a hard coating layer or the hard coating layer is partially or entirely peeled off.

Abstract: The present invention relates to: a porous composite separator for a secondary battery including a porous substrate, and a coating layer formed on the porous substrate, wherein the coating layer has a plurality of inorganic particles, which are connected and fixed by a composite binder including a particulate polymer binder and an interpenetrating polymer network (IPN)-type binder having no melting point and having a thermal decomposition temperature of 300° C. or higher; and a lithium secondary battery including the same.

Abstract: According to a composition including a cationic substance as an active ingredient according to one aspect, the stability of perforin protein is increased to induce the accumulation of intracellular perforin proteins, thereby increasing the activity of immune cells.

Abstract: An eco-friendly biodegradable molded article, including: a polyester resin including a diol, an aromatic dicarboxylic acid and an aliphatic dicarboxylic acid, wherein, when continuously irradiated with ultraviolet rays from a UVA 340 ultraviolet light lamp at an intensity of 0.75 W/m2, a tensile strength decrease rate from the beginning of the ultraviolet irradiation to 1 day ranges from 5% to 40%.

Abstract: A strain of Lactobacillus gasseri KBL697 and the use thereof are described. The strain of Lactobacillus gasseri KBL697 (Accession No. KCTC 13520BP) attenuates allergic reactions of cells, significantly improves symptoms of atopic dermatitis, and exhibits anti-inflammatory and anti-fungal effects and a therapeutic effect for intestinal diseases such as irritable bowel syndrome and colitis. Thus, the single strain alone can achieve all the purposes of alleviating allergic diseases and inflammatory diseases and improving intestinal health, thereby finding advantageous applications as a probiotic substance. In addition, the strain, based on the anti-fungal activity thereof, can be advantageously utilized in a skin external preparation against various skin diseases caused by fungi, and in a cosmetic composition and a functional patch for alleviating sensitive skin.

Abstract: An optical multilayer structure comprising a substrate layer; and a hard coating layer formed on one surface of the substrate layer, wherein the optical multilayer structure has a water contact angle of an outermost layer in accordance with ASTM D5964 of 105° or less. The optical multilayer structure according to one embodiment has improved adhesion with a different kind of film due to high surface energy of an outermost layer to have both excellent durability and excellent wear resistance, and thus, may be usefully applied to a window cover film or a flexible display panel.

Abstract: Provided is a telehaptic device which includes a piezoelectric sensor module and a piezoelectric actuator module that are spaced apart from each other, wherein the piezoelectric sensor module includes a first flexible substrate, a first support substrate connected to the first flexible substrate, a piezoelectric sensor array on the first flexible substrate, and a first wireless communication circuit on the first support substrate, the piezoelectric actuator module includes a second flexible substrate, a second support substrate connected to the second flexible substrate, a piezoelectric actuator array on the second flexible substrate, and a second wireless communication circuit on the second support substrate, the piezoelectric sensor array includes piezoelectric sensors, the piezoelectric sensors being spaced apart according to a first pitch, the piezoelectric actuator array includes piezoelectric actuators, the piezoelectric actuators being spaced apart according to a second pitch, the first pitch and the s

Abstract: The present invention provides an ultra high strength cold rolled steel sheet having excellent spot weldability and formability. The ultra high strength cold rolled steel sheet, according to one embodiment of the present invention, comprises, in weight percent,: 0.05% to 0.09% of carbon (C); 0.5% to 1.0% of silicon (Si); 2.0% to 2.8% of manganese (Mn); 0.2% to 0.5% of aluminum (Al); 0.8% to 1.2% of chromium (Cr); 0.05% to 0.10% of molybdenum (Mo); 0.03% to 0.06% of titanium (Ti); 0.001% to 0.003% of boron (B); 0.02% to 0.05% of antimony (Sb); 0.001% to 0.015% of phosphorus (P); more than 0% to 0.003% of sulfur (5); 0.004% to 0.006% of nitrogen (N); and a balance of iron (Fe) and other inevitable impurities, and the ultra high strength cold rolled steel sheet comprises a microstructure comprising ferrite and low hardness martensite.

Abstract: Disclosed is an electronic device that includes a display that outputs execution screens of a plurality of applications, a memory that stores the plurality of applications, and a processor electrically connected with the display and the memory. The processor retrieves a history of one or more applications among the plurality of applications that were previously executed in the electronic device, in response to a user input detected by the electronic device and outputs the history on the display based on information about the one or more applications and information about layouts of execution screens of the one or more applications. If at least one of the one or more applications is selected from the history, the processor outputs an execution screen of the selected application on the display according to the corresponding layout.

Abstract: The present disclosure relates to a novel yeast mutant strain for producing a ceramide precursor, and a method for preparing the same, and more specifically, to a Pichia ciferrii mutant strain genetically engineered to overexpress sphingolipid metabolites prepared through the reconstruction of metabolic pathways for ceramide production in Pichia ciferrii, or a method for preparing the mutant strain.