Abstract: The present invention provides a microsphere composition for contraceptive microneedles and contraceptive microneedles comprising the same. The microsphere composition for contraceptive microneedles according to the present invention encapsulates a drug stably, exhibits sustained-release of the drug for at least one week, and has a particle size (Dv90) suitable for use in microneedles. The contraceptive microneedles according to the present invention offer convenient administration with once-weekly use, superior skin drug permeability allowing for short attachment times, and sustained-release of the drug for at least one week. The contraceptive microneedle patch of the present invention provides sustained-release of the drug for at least one week even with short attachment times, making it useful as a female contraceptive.

Abstract: The present invention relates to a composite charging system and method capable of producing charging power for an electric vehicle by utilizing hydrogen energy supplied to a hydrogen vehicle, and compositely connecting hydrogen energy with a power system to efficiently perform charging of the electric vehicle, and more flexibly coping with the use of energy. The composite charging system according to the present invention comprises: a hydrogen charger which charges hydrogen into a vehicle; a hydrogen power supply system which generates and supplies power on the basis of hydrogen; a system power supply system which supplies power from a power system; an electric charger which charges the electric vehicle; and a battery power supply system which stores power supplied from the hydrogen power supply system and the system power supply system, and supplies the stored power to the electric charger.

Abstract: Provided is an apparatus for controlling a road wheel actuator (RWA) system, the apparatus including a sensor module configured to detect sensing data of at least one of a steering angle, rack position information, angular velocity of a steering wheel, and column torque, and a processor configured to perform a Proportional Integral Differential (PID) control logic based on the sensing data detected by the sensor module and the RWA position information fed back from the RWA system.

Abstract: A light-emitting element includes a first electrode, a second electrode on the first electrode, and at least one functional layer between the first electrode and the second electrode and containing an amine compound represented by Formula 1.

Abstract: A light-emitting element may include a first electrode, a second electrode disposed on the first electrode, and at least one functional layer disposed between the first electrode and the second electrode and containing an amine compound represented by Formula 1.

Abstract: A battery module includes a cell holder including insertion regions in which battery cells arranged in a plurality of columns are inserted, and a blocking part which covers an insertion region of the insertion regions in which a battery cell is not inserted.

Abstract: An apparatus for inspecting a failure of an electrode assembly before injecting an electrolyte includes a short-circuit tester configured to detect a short circuit of the electrode assembly by applying a predetermined voltage to a positive electrode and a negative electrode of the electrode assembly; a multimeter electrically connected to the short-circuit tester and configured to measure a voltage and a current of the electrode assembly over time; and a failure determination part connected to the multimeter and configured to monitor changes in voltage and current measured by the multimeter and determine a type of a failure of the electrode assembly from data on the changes in voltage and current over a predetermined period of time. A method of inspecting a failure of an electrode assembly using the same is also provided.

Abstract: A self-cleaning device and a method of operating the same for removing droplet, high viscosity liquid material or mixed material using heating, multi-voltage applying or vibration are disclosed. The self-cleaning device comprises a metal material layer disposed on a solid material layer and a hydrophobic layer disposed on the metal material layer. The metal material layer includes a view member formed of conductive material and a heating member disposed outside or inside the view member, heat is generated from the view member and the heating member when a power is applied to the view member and the heating member, the heat generated from the heating member is delivered to the view member, and droplet existed on a surface of the self-cleaning device is removed or a volume or surface tension of the droplet reduces by the heat generated from the view member and the heat delivered from the heating member.

Abstract: Proposed are a radiofrequency ablation system and a method of controlling the radiofrequency ablation system, the system and the method being capable of selectively executing a monopolarity mode, in which heat is concentratedly generated around each of one pair of electrodes, or a bipolarity mode, in which heat is concentratedly generated between one pair of electrodes, without increasing pressure with a lesion by inserting a plurality of electrodes into the surrounding tissue instead of direct insertion thereof into the lesion. With the system and the method, efficiency in heat generation can be maximized, and a tumor recurrence ratio can be reduced.

Abstract: An embodiment of this disclosure provides an electrode device includes a plurality of high-frequency electrodes for cauterization of a lesion tissue; a multi-functional electrode for injecting a fluid or measuring a temperature of a surrounding tissue; a temperature sensor provided inside the multi-functional electrode; and a main body which has an electrode line for supplying a high frequency to each of the plurality of high-frequency electrodes, a cooling line for circulating and supplying cooling water to the inside of each of the plurality of high-frequency electrodes, a fluid line for supplying a fluid to the inside of the multi-functional electrode, and a temperature sensor line connected to the temperature sensor, and which is coupled to the plurality of high-frequency electrodes and the multi-functional electrode via flexible tubes, respectively.

Abstract: An ultrasound imaging disclosure according to an embodiment of the present disclosure relates to an ultrasound imaging apparatus configured to irradiate ultrasonic waves to an object to which an ultrasonic contrast agent is administered, receive an echo signal reflected from the object, and analyze a contrast enhanced ultrasound image for the object, the ultrasound imaging apparatus including an image processor configured to set a region of interest in the ultrasound image, and generate a time intensity curve representing brightness of each frame of the ultrasound image within the set region of interest and a curve fitting model representing a tendency of the time intensity curve according to a predetermined mathematical model.

Abstract: A handpiece tip for refrigerant injection of an RF high frequency device for skin treatment including a refrigerant injection nozzle configured to inject a refrigerant for local anesthesia in a plane direction is provided. Also provided is a handpiece tip for refrigerant injection of an RF high frequency device configured such that a needle is inserted into a projecting piece of the skin, which is projected as the result of being suctioned by a skin adsorption contact unit, whereby the needle is located in a place at a position desired by an operator.

Abstract: A handpiece tip for refrigerant injection of an RF high frequency device for skin treatment including a refrigerant injection nozzle configured to inject a refrigerant for local anesthesia in a plane direction is disclosed. Also disclosed is a handpiece tip for refrigerant injection of an RF high frequency device configured such that a needle is inserted into a projecting piece of the skin, which is projected as the result of being suctioned by a skin adsorption contact unit, whereby the needle is located in a place at a position desired by an operator.

Abstract: A battery module includes: a housing; a plurality of battery cells inside the housing, each of the battery cells having vents; and a fire-extinguishing sheet inside the housing and covering the vents of the battery cells. The fire-extinguishing sheet includes: a main body portion including a metal and accommodating a fire-extinguishing agent therein; and an insulating film covering first and second surfaces of the main body portion.

Abstract: A battery life prediction apparatus according to an embodiment disclosed herein includes a processor and memory having programmed thereon instructions that, when executed, are configured to cause the processor to obtain information about a charge end voltage of a battery corresponding to a charge protocol and predict a life of the battery corresponding to the charge protocol based on the information about the charge end voltage of the battery corresponding to the charge protocol.

Abstract: A light emitting element includes a first electrode, a second electrode on the first electrode, an emission layer between the first electrode and the second electrode, and a hole transport region between the first electrode and the emission layer and including an amine compound represented by Formula 1, where at least one selected from R12, R23, and R34 is a substituted or unsubstituted methyl group.

Abstract: Embodiments provide a light emitting device that includes a first electrode, a second electrode facing the first electrode, and a plurality of functional layers disposed between the first electrode and the second electrode.

Abstract: The present disclosure relates to a light emitting element and an amine compound for the light emitting element, and the light emitting element of an embodiment includes a first electrode, a second electrode on the first electrode, and at least one functional layer between the first electrode and the second electrode, wherein an amine compound represented by Formula 1 is included in the at least one functional layer, thereby improving emission efficiency and element life of the light emitting element.

Abstract: A self-cleaning device comprises at least one first electrode disposed on a solid material layer, a first dielectric layer disposed on the first electrode, a hydrophobic layer disposed on the first dielectric layer, and at least one mechanical oscillation unit. Electrical oscillation for oscillating a droplet in a horizontal direction is generated by applying a first electric signal to the first electrode, thereby merging droplets formed on the hydrophobic layer, the mechanical oscillation unit moves the merged droplets in a specific direction or atomizes the merged droplets to remove the merged droplets by generating mechanical oscillation for oscillating the droplet in a vertical direction, and each of the droplets has a volume smaller than 3 ?l, and new droplet having a volume more than 3 ?l is generated by the merging.

Abstract: The present invention provides a Streptomyces sp. SNC087 strain (KCCM12505P) that is isolated from seawater and produces staurosporine, a method for producing staurosporine using the same, a method for culturing the same, and a pure culture medium of the same.