Abstract: The spin-orbit torque-based random number generator includes a spin torque generation layer including a first spin torque layer and a second spin torque layer, a magnetization-free layer, a tunnel barrier layer, and a magnetization pinned layer, wherein the second spin torque layer is disposed between the magnetization-free layer and the first spin torque layer and generates field-like torque (FLT) and damping-like torque (DLT) related to the magnetization direction of the magnetization-free layer; the first spin torque layer adjusts a torque ratio according to the size of field-like torque to the size of damping-like torque in conjunction with the thickness of the second spin torque layer; in the magnetization-free layer, a magnetization direction is randomly aligned up or down based on the adjusted torque ratio; and a random number is generated based on current that is switched and output based on the randomly aligned magnetization direction.

Abstract: A massage device includes a controller for controlling the massage device; a body massage unit including a massage module for massaging at least a part of the user's body under the control of the controller; and a leg massage unit for massaging the user's legs under the control of the controller. The leg massage unit includes a first leg massage unit for massaging one of the user's legs, and a second leg massage unit for massaging the user's other leg, with the first leg massage unit and the second leg massage unit able to operate independently.

Abstract: The present invention relates to a novel vaccine composition for coronavirus infection-19 comprising a polymer-based mRNA carrier. Specifically, the present invention provides a vaccine composition comprising an mRNA carrier using a novel polymer capable of delivering a negatively charged genetic material such as mRNA, and the vaccine composition has excellent effects of enhanced in vivo immune activity such as high antibody formation ability and increased interferon-gamma production.

Abstract: A mode conversion apparatus includes a first freeform-surface mirror to reflect incident light provided from a front-end optical system and output the reflected light in a first direction, and a second freeform-surface mirror to reflect the reflected light and output mode-converted light in a second direction where surface shapes of the first and second mirrors are determined based on a freeform-surface coefficient determined by at least five optical parameters of a distance from the first mirror to a confocal point of the first mirror and the second mirror, a distance from the confocal point to the second mirror, a distance from a waist of the incident light to the first mirror, a distance from the second mirror to a waist of the mode-converted light, and an incident angle of the incident light for the first mirror and an incident angle of the reflected light for the second mirror.

Abstract: A system for determining performance of a fuel cell stack may include a vehicle that collects a current of the fuel cell stack and a current of the fuel cell stack and a server that receives the voltage of the fuel cell stack and the current of the fuel cell stack from the vehicle in real time, determines an average state of health (SOH) of the fuel cell stack for each current section within an effective current range based on the current of the fuel cell stack and the voltage of the fuel cell stack within the effective current range, determines an overall average SOH in the effective current range based on the average SOH of the fuel cell stack for each current section, and determines whether the fuel cell stack has failed based on the overall average SOH.

Abstract: A coil electronic component includes a support substrate, a coil portion disposed on at least one surface of the support substrate, a body in which the support substrate and the coil portion are embedded, and first and second external electrodes disposed on a surface of the body and connected to both ends of the coil portion, respectively. A thickness of the body is 0.55 mm or less. The body includes a cover portion disposed on the coil portion. A ratio of a thickness of the coil portion to a thickness of the cover portion is 5:5 to 8:2.

Abstract: Provided is a water purifier comprising: a filter unit which has a reverse osmosis membrane filter; a supply valve; an instantaneous heating device which is provided with an inflow port, and an outflow port, and which heats and purified water entering through the inflow port and flowing to the outflow port, so that hot water is discharged through the outflow port; an extraction member; a supply pump; a domestic water drain line; a hot water drain line; a hot water drain valve; and a control unit which controls the opening/closing of respective flow channels of the hot water drain line and the domestic water drain line so that, among a hot water draining process through the hot water drain line, and a domestic water draining process through the domestic water drain line, the hot water draining process is carried out first.

Abstract: The separator according to the present disclosure and the electrochemical device including the same show low internal resistance between the separator and an electrode. The separator includes heat resistant particles in a heat resistant coating layer. The heat resistant particles include a particle-shaped inorganic material and fluorine (F) doped to a surface of the inorganic particles. When the internal temperature of a battery is increased during the operation of the battery, the separator shows improved heat resistance by virtue of an endothermic effect derived from a phase change of the heat resistant particles. In addition, decomposition of a lithium salt used as an ingredient of electrolyte is inhibited by the fluorine atoms introduced to the heat resistant particles, resulting in improvement of ion conductivity and resistance characteristics.

Abstract: A seat mounting device for a vehicle is configured to allow a seat to be removably mounted in a flexible manner according to a user's desired purpose by mounting the seat to face forward or rearward or arranging the seat along with other seats of the vehicle, according to the number of passengers or different seating arrangements. In addition, by allowing the seat to be removed from the leg frame and the leg frame to be removed from the support frame and folded, the seat and leg frame may be easily stored in a separate storage location.

Abstract: A variable coherence illumination device is disclosed. The variable coherence illumination device includes a light source generator configured to emit a beam and configured to control a wavelength of the beam, a focusing lens configured to focus the beam, a first diffuser on which a beam passing through the focusing lens is incident, a second diffuser facing the first diffuser and rotatable around a rotation axis of the second diffuser, in which a focusing region on which the beam passing through the first diffuser is focused by the focusing lens is formed on the second diffuser, in which the focusing region of the second diffuser is spaced apart from the rotation axis of the second diffuser.

Abstract: The present disclosure relates to a power supply device, and more specifically, to a seat power supply device including an improved power supply structure for a vehicle seat. The seat power supply device includes a pogo pin assembly fixed to a vehicle and electrically connected to a power source; and a distribution element electrically connected to the pogo pin assembly and configured to supply power from the power source to an electronic part of a seat.

Abstract: A high voltage junction box in a vehicle is powered by an electric motor. The high voltage junction box includes a housing made of a non-metallic material, the housing having a female connector installation hole, a housing cover made of a non-metallic material, a female connector disposed in the female connector installation hole, and a ground bus bar disposed at the housing and configured to connect the female connector to a vehicle body. The high voltage junction box improves the capability of absorbing radiated noise through a ground bus bar that allows surface grounding and has low wiring resistance.

Abstract: One embodiment of the present invention relates to an artificial blood vessel installed with a piezoelectric vibration element. In the artificial blood vessel according to one embodiment of the present invention, a piezoelectric vibration element is installed at one or both ends of a polymer tube, and vibration occurs in the piezoelectric vibration element according to an electrical signal. As a result, the formation of blood clots or the overgrowth of the intima can be prevented at the anastomotic site where the artificial blood vessel and the native blood vessel are joined, thereby improving the vascular patency rate and preventing stenosis.

Abstract: A resin composition according to an exemplary embodiment of the present disclosure includes a first polyol represented by Chemical Formula 1, a second polyol represented by Chemical Formula 2, and a polyisocyanate, wherein the first polyol and the second polyol have a linear structure without a side chain. each of Y1 to Y4 is H or OH—, at least one of Y1 and Y2 is OH—, at least one of Y3 and Y4 is OH—, each of X1 to X3 is independently a C1-C20 alkyl group, the alkyl group includes or does not include an unsaturated bond, —CH2— in the alkyl group may be substituted or unsubstituted with —CHOH—, and each of n and m is independently 1 to 200.

Abstract: The present technology relates to an electrochemical device comprising a separation membrane having a dotted line, and a short circuit inducing member, and a method capable of evaluating safety under internal short circuit conditions by using the electrochemical device. When using the electrochemical device of the present invention, it is possible to easily evaluate safety under internal short circuit conditions without physical deformation of an energy storage apparatus.

Abstract: The present invention relates to a pharmaceutical composition useful for treating a Respiratory Syncytial Virus (RSV) infection, comprising a compound which is or a pharmaceutically acceptable salt thereof, and a second anti-respiratory syncytial virus agent.

Abstract: A start control system of a fuel cell includes: a fuel cell configured to generate power upon receiving air and fuel; an air supply system configured to supply air to a cathode of the fuel cell through an air supply line; a fuel supply system configured to supply fuel to an anode of the fuel cell through a fuel supply line that re-circulates fuel discharged from an outlet of the anode of the fuel cell to an inlet of the anode to supply fuel; an air controller configured to control the air supply system such that air flowing into the air supply line bypasses the cathode of the fuel cell when a start ON signal is input; and a fuel controller configured to supply new fuel to the fuel supply line and to control the fuel supply system to purge fuel of the fuel supply line.

Abstract: A display device includes a pixel in a display area, sensing electrodes overlapping the pixel, a sensing pad in a non-display area, a sensing connection line in the non-display area, and electrically connected to the sensing pad, a sensing signal line in the non-display area, and electrically connected to the sensing electrodes, and a power line extending from the non-display area, and electrically connected to the pixel, wherein the sensing signal line is electrically connected to the sensing connection line through an opening or indentation defined by the power line.

Abstract: In a secondary battery, a cell pouch for a secondary battery according to the present invention comprises an inner resin layer, a barrier layer, and an outer resin layer, wherein the inner resin layer, the barrier layer, and the outer resin layer are sequentially laminated, wherein a content ratio of PER (Propylene Ethylene Rubber) in the inner resin layer is 10% or less. According to the present invention, the electrolyte peel strength of the secondary battery cell is improved to ensure excellence and reliability, as well as it is possible to use a cell pouch for a secondary battery with excellent conditions such as an electrolyte peeling strength of 1,000 (gf/15 mm) or more, due to the property, in which the electrolyte peel strength of the secondary battery cell is inversely proportional to the content ratio of PER in the inner resin layer and is proportional to the length of PER.

Abstract: An indoor positioning system and a method thereof using reflected light is proposed. The system and the method are configured to use an optical signal transmitter and receiver and a reflector array composed of retroreflectors whose angle of incidence of each optical signal is equal to an angle of reflection thereof to calculate a distance to the reflector array on the basis of reception information of each optical signal and calculate an absolute location of the user on the basis of the distance information and absolute location information of each reflective surface of the reflector array, so as to solve the problems of indoor positioning systems and methods using reflected light of the related art that has a limitation that reflective surfaces should reflect the reflected light at respective frequencies different from each other and sensors satisfying sufficient sensitivity distances and communication speeds to detect the reflected light are required.