Abstract: A refrigerator including: a main body forming a storage compartment and a door provided to open and close the storage compartment, wherein the door includes a door frame, a cover arranged in front of the door frame and including a cover fixer, and a door panel arranged in front of the cover, the door panel including a first fixer and a second fixer on a rear surface of the door panel. When the door panel is coupled to a front side of the cover, the first fixer is coupled to the door frame and the second fixer is coupled to the cover.

Abstract: An aerosol-generating device is disclosed. The aerosol-generating device of the disclosure includes a battery, a temperature sensor configured to provide an output corresponding to the temperature of the battery, a voltage conversion circuit configured to convert a first voltage output from the battery, a heater configured to heat an aerosol-generating substance based on a second voltage output from the voltage conversion circuit, and a controller configured to determine the temperature of the battery using the temperature sensor. The controller adjusts the level of the second voltage based on the temperature of the battery.

Abstract: An aerosol generating device is provided. The aerosol generating device includes: a body defining a first insertion space having an upper opening; a heater holder configured to be coupled to a heater and inserted into the first insertion space and defining a second insertion space having an upper opening; and an extractor configured to be inserted into the second insertion space and defining a third insertion space having an upper opening.

Abstract: An apparatus for manufacturing an optical device including a barrel portion and a first lens arranged in the barrel portion includes a light simulation part that receives initial design values for the optical device and simulate light passing through the optical device, and a Monte Carlo simulation part that determines whether the initial design values are appropriate by using Monte Carlo simulation.

Abstract: An aerosol-generating device and an operation method thereof are disclosed. The aerosol-generating device of the disclosure includes a housing having an insertion space defined therein, a heater configured to heat a stick inserted into the insertion space, a capacitance sensor including an electrode disposed adjacent to the insertion space, and a controller. The controller sets a unit time for which charging and discharging of the electrode are monitored once, calculates a time for which charging and discharging of the electrode are completely performed once based on the set unit time, and determines whether the stick is inserted into the insertion space based on the calculated time. The unit time exceeds a predetermined period of time for which charging and discharging of the electrode are completely performed once in response to insertion of the stick.

Abstract: An extractor and an aerosol-generating device including the same are disclosed. The extractor of the disclosure includes a first extractor shaped to define a first cavity and having an open upper side; a heater protruding upwards from a bottom of the first extractor; and a second extractor shaped to define a second cavity having an open upper side, the second extractor including a bottom that is shaped to define a through-hole that is sized to permit the heater to pass therethrough, wherein the second extractor is inserted into the first cavity and is movably coupled to the first extractor upwards and downwards.

Abstract: The present invention relates to a microneedle patch system for continuously administering a large amount of drug to the skin. A microneedle patch provided by one aspect of the present invention may have increased drug content per unit area (1 cm2) to maximum of 100 mg unlike existing microneedles and thus has a higher drug content per unit area than an existing transdermal absorption agent, and is capable of delivering the drug into the body for a short time (within 24 hours) and a long time (approximately three days or more) via micropores formed by means of microneedles.

Abstract: An aerosol-generating device and an operation method thereof are disclosed. The aerosol-generating device of the disclosure includes a heater configured to heat an aerosol-generating substance, a puff sensor configured to detect a puff, and a controller configured to process a signal from the puff sensor. The controller determines a first frequency corresponding to a first puff time period and a second frequency corresponding to a second puff time period, which is longer than the first puff time period, filters the signal from the puff sensor based on the first frequency and the second frequency, and adjusts the power supplied to the heater based on the result of filtering. The first frequency is a frequency lower than the second frequency.

Abstract: An aerosol-generating device controls power supplied to a heating unit based on a first target temperature during a first preheating section and control the power based on a second target temperature higher than the first target temperature during a second preheating section, such that the heating unit is stably heated to a target preheating temperature without carbonizing the aerosol generating substrate.

Abstract: An aerosol-generating device is disclosed. The aerosol-generating device of the disclosure includes a heater configured to heat an aerosol-generating substance, a memory including a plurality of areas configured to store the histories of events occurring in the aerosol-generating device therein, and a controller. Each of the plurality of areas includes a plurality of storage spaces storing the histories. When a predetermined event occurs, the controller stores the history of the predetermined event in a predetermined area set to a storage area, among the plurality of areas. When the predetermined event corresponds to a predetermined error event, the controller changes the storage area.

Abstract: An aerosol-generating device is disclosed. The aerosol-generating device of the disclosure includes a housing having an insertion space defined therein, a heater configured to heat a stick inserted into the insertion space, a puff sensor configured to detect a puff, a memory configured to store a temperature profile, and a controller. The controller determines, based on the interval between puffs detected in a first period among a plurality of periods in which the stick is heated, a setting value for a second period, which is a period after the first period among the plurality of periods. The controller adjusts power supplied to the heater in the second period based on the determined setting value. The setting value includes at least one of a target temperature of the heater or a heating time period.

Abstract: Disclosed is an aerosol-generating device which includes a power converter for supplying an alternating power to an induction coil, and controls switching elements in the power converter to change an operation mode of a power converter based on a temperature profile such that the power converter operates in a full bridge mode in a preheating section and operates in a half bridge mode in a smoking section.

Abstract: Disclosed is an aerosol-generating device which includes a power converter for supplying an alternating power to an induction coil, and controls switching elements in the power converter to change an operation mode of a power converter based on a temperature profile such that the power converter operates in a full bridge mode in a preheating section and operates in a half bridge mode in a smoking section.

Abstract: The present invention provides a lithium ion conductive composite solid electrolyte including an oxide-based crystalline solid electrolyte and a sulfide-based solid electrolyte, wherein the oxide-based solid electrolyte is a garnet-type solid electrolyte represented by a general formula of Li7-3y-zAlyLa3Zr2-zMzO12, wherein M is at least one element selected from the group consisting of niobium (Nb), tantalum (Ta), and tungsten (W), y satisfies 0?y?1, and z satisfies 0?z<2, the sulfide-based solid electrolyte is an argyrodite-based ceramic represented by a general formula of Li7-aPS6-aXa, wherein X is at least one element selected from the group consisting of chlorine (Cl), bromine (Br), and iodine (I), and a satisfies 0?a?2, and the oxide-based solid electrolyte and the sulfide-based solid electrolyte are mixed in a weight ratio of 5.1:4.9 to 8:2.

Abstract: Disclosed is an aerosol-generating device which includes a power converter for supplying an alternating power to an induction coil, and controls switching elements in the power converter to change an operation mode of a power converter based on a temperature profile such that the power converter operates in a full bridge mode in a preheating section and operates in a half bridge mode in a smoking section.

Abstract: The present disclosure relates to relates to promoter variants and Corynebacterium mutant strain, and methods of use thereof.