Abstract: An aerosol generating device includes: a housing including a hole for receiving an aerosol generating article and a guide apart from the hole; and a cover configured to move along the guide between a first position and a second position to open or close the hole, wherein the hole is open when the cover is located in the first position, and the hole is closed when the cover is located in the second position.

Abstract: The disclosure relates to a tobacco material including a natural flavor material and a method of preparing the tobacco material. The tobacco material may have a core-shell structure in which a core includes a natural flavor material and is surrounded by a shell including a tobacco mixture, such that the aerosol generating article including the tobacco material generates a characteristic flavor.

Abstract: One or more embodiments relate to an aerosol generating article including: a first portion including an aerosol generating element; a second portion including a cooling element; a third portion including a tobacco element; and a fourth portion including a filter element, wherein the first through fourth portions are sequentially arranged in a longitudinal direction of the aerosol generating article.

Abstract: A method for unlocking the electronic device includes displaying a screen for verifying a registered user, determining whether a user is a registered user in the electronic device based on a user input to the screen for verifying a registered user, and unlocking the electronic device when the user is determined to be the registered user.

Abstract: Provided is an aerosol generating apparatus including: a susceptor configured to heat an aerosol generating article inserted into an accommodation space of the aerosol generating apparatus; an induction coil arranged around the susceptor and configured to heat the susceptor by induction heating; a switching module configured to switch an electrical path of the induction coil; and a controller electrically connected to the switching module and configured to detect insertion of the aerosol generating article on the basis of a change in an inductance of the induction coil by setting a control mode for the induction coil to a reception mode, and when the insertion of the aerosol generating article is detected, switch the control mode to a transmission mode for activating the induction heating, via the switching module.

Abstract: The present disclosure relates to a high-entropy alloy and a manufacturing method therefor, and in particular, a high-entropy alloy and a manufacturing method therefor that comprises a multi-element alloy matrix and Cu, and comprises an alloy having a face-centered cubic (FCC)-based phase, such that the high-entropy alloy may have greater hardness and strength than an existing transition metal alloy while maintaining a FCC-based single phase, and has high lubricity.

Abstract: An embodiment of the present disclosure discloses tobacco material including: a center portion including a flavor material; and an outer portion including a tobacco mixture, wherein the outer portion surrounds the center portion.

Abstract: An aerosol generating device includes: a housing including a hole for receiving an aerosol generating article and a guide apart from the hole; and a cover configured to move along the guide between a first position and a second position to open or close the hole, wherein the hole is open when the cover is located in the first position, and the hole is closed when the cover is located in the second position.

Abstract: Provided is an aerosol generating device including a susceptor, a coil, a housing, and a first flow passage. The first flow passage includes: an outer flow passage between the housing and the coil; and an inner flow passage between the coil and the susceptor and in fluid communication with the outer flow passage.

Abstract: Provided is an aerosol generating apparatus including: a heater configured to heat an aerosol generating article inserted into an accommodation space of the aerosol generating apparatus; a sensing module including at least one of an inductive sensor configured to detect a change in an inductance of the accommodation space or a temperature sensor configured to detect a change in a temperature of the heater; and a processor configured to: detect, via the sensing module, whether the aerosol generating article that is inserted into the accommodation space is at least partially moved from the accommodation space; and based on detecting that the aerosol generating article is at least partially moved from the accommodation space, control a power supply to the heater, based on at least one of the change in the inductance or the change in the temperature acquired via the sensing module.

Abstract: An aerosol generating apparatus includes: a heater configured to heat an aerosol generating substrate; a puff sensor configured to measure an amount of a user's puff; and a controller configured to determine a vaporization amount of the aerosol generating substrate, based on a puff sensing value indicating the amount of the user's puff, and control a heating time of the heater, based on the determined vaporization amount.

Abstract: An aerosol generating device includes: a main body including a controller and a battery; and a removable heater module removably combined to the main body and including a heater and a first memory, the heater being configured to heat an aerosol generating article, wherein the first memory stores heater module information about intrinsic properties of the removable heater module, the heater module information being obtained during a manufacturing process of the removable heater module, and the controller is configured to obtain the heater module information from the first memory when the removable heater module is combined to the main body, determine a control condition corresponding to the removable heater module by using the obtained heater module information, and control the aerosol generating device based on the determined control condition.

Abstract: Provided is an aerosol generating apparatus including: a susceptor configured to heat an aerosol generating article inserted into an accommodation space of the aerosol generating apparatus; an induction coil arranged around the susceptor and configured to heat the susceptor by induction heating; a switching module configured to switch an electrical path of the induction coil; and a controller electrically connected to the switching module and configured to detect insertion of the aerosol generating article on the basis of a change in an inductance of the induction coil by setting a control mode for the induction coil to a reception mode, and when the insertion of the aerosol generating article is detected, switch the control mode to a transmission mode for activating the induction heating, via the switching module.

Abstract: A method, performed by an aerosol generating device, of performing a self-diagnosis, includes: when the aerosol generating device does not normally operate by an error, determining whether to activate the self-diagnosis for analyzing the error of the aerosol generating device; when the self-diagnosis is activated, performing a function self-test by checking whether each of functions required for a normal heating operation of the aerosol generating device is operative; determining a faulty component of the aerosol generating device based on a result of the function self-test; determining a faulty function of the faulty component based on an error log recorded in the aerosol generating device; determining a severity of the determined faulty function; and outputting a final diagnosis result with respect to the self-diagnosis based on the faulty component, the faulty function, and the severity.

Abstract: An aerosol generating device includes: a heater configured to heat an aerosol generating article; a temperature sensor configured to measure a temperature of the heater; and a processor configured to: obtain an initial temperature of the heater which is measured by the temperature sensor when a user input for starting an heating operation of the heater is received, compare the initial temperature of the heater with a first temperature; based on the initial temperature being lower than the first temperature, control the heater to perform the heating operation according to a preset temperature profile; and when the temperature of the heater reaches a second temperature higher than the first temperature, control the heater to stop the heating operation for a first delay time.

Abstract: Disclosed is a heater assembly for accommodating and heating an aerosol generating article, the heater assembly including: an accommodation portion configured to accommodate an end portion of an aerosol generating article; a heating portion arranged to surround another portion of the aerosol generating article; and a combining portion configured to combine the accommodation portion and the heating portion and including engineering plastic, wherein the accommodation portion, the combining portion, and the heating portion are arranged along a longitudinal direction of the aerosol generating article and form an accommodation space in which the aerosol generating article is accommodated.

Abstract: An aerosol generating device may include: a heater; a wetting detection module configured to generate a wetting signal by being electrically shorted as the wetting detection module comes into contact with a liquid introduced from outside the aerosol generating device or a liquid leaked from inside the aerosol generating device; and a control circuit configured to determine whether the wetting signal indicating an electrical short has been received from the wetting detection module, and control the heater based on a determination that the wetting signal has been received.

Abstract: Provided is an aerosol generating article including a first portion comprising an aerosol generating element, a second portion comprising a tobacco element, a third portion comprising a cooling element, and a fourth portion comprising a filter element, wherein the first portion, the second portion, the third portion, and the fourth portion are sequentially provided in a length direction of the aerosol generating article, and wherein the second portion comprises a porous tobacco solid that comprises the tobacco element.

Abstract: An aerosol-generating apparatus includes a heater assembly configured to heat a cigarette inserted into the aerosol-generating apparatus, a battery configured to supply power to the heater assembly, and a system-in-package (SIP) including a microcontroller unit (MCU); a sensor module; and a heating integrated circuit (IC) configured to control a heating operation of the heater assembly.

Abstract: An aerosol generating device may include: a heater configured to apply heat to an aerosol generating substrate; a temperature sensor configured to measure a temperature of the heater to obtain a measured temperature value; and a processor configured to: control power supplied to the heater; add a first calibration value to the measured temperature value to obtain a first calibrated temperature value; add a second calibration value to the first calibrated temperature value to obtain a second calibrated temperature value; and determine the second calibrated temperature value as the temperature of the heater.