Abstract: A cartridge for mounting on a main body of an aerosol generating device includes: a liquid storage extending in a longitudinal direction of the cartridge to form an outer wall of the cartridge, the liquid storage including a space accommodating a liquid composition therein; a heater that heats the liquid composition accommodated in the liquid storage to generate an aerosol; and a coupling protrusion including an elastic material, the coupling protrusion protruding from an outer surface of the liquid storage and coupling the main body to the cartridge.

Abstract: An aerosol generating system includes an aerosol generating device including an induction coil that performs a heating operation for heating a susceptor arranged in a cigarette insertion portion and a charging operation for receiving electric power from the outside to charge a power supply, and a charging device including a transmission coil that transmits electric power to the induction coil.

Abstract: An aerosol generating device and an operation method thereof are disclosed. The aerosol generating device may include a heater for heating an aerosol generating material, a battery for supplying power to the heater, and a controller for dividing a preheating period for preheating the heater into a plurality of sections and controlling so that more power is supplied to the heater in a first section than in a second section among the plurality of sections.

Abstract: A device for evaluating characteristics of a target ground containing a metal component is proposed. The device includes a penetration probe having a main frame and a pair of side frames respectively installed at opposite side ends of the main frame, wherein each side frame has a lower end thereof extending downward from the main frame; a plurality of electrodes installed to be exposed to outside on the main frame; an electrode measurement part for measuring apparent chargeability of the target ground by applying power for measurement to the plurality of electrodes; and a main processor for calculating a weight ratio of a metal component of the target ground on the basis of the apparent chargeability measured by the electrode measurement part and calculating a volume ratio of the metal component of the target ground on the basis of the calculated weight ratio of the metal component.

Abstract: According to an embodiment, provided is an aerosol generating device including: a receiving portion accommodating a cigarette through an opening formed at one end of the receiving portion; a first susceptor located in the receiving portion; a second susceptor arranged spaced apart from the first susceptor; a third susceptor arranged spaced apart from the first susceptor and the second susceptor; and a coil that induces an alternating magnetic field so that the first to third susceptors generate heat, wherein whether the cigarette is accommodated is determined based on a first temperature profile of the second susceptor and a second temperature profile of the third susceptor.

Abstract: Provided is a method for preparing an oligomer including: supplying a monomer stream and a solvent stream to a reactor to perform an oligomerization reaction to prepare a reaction product; supplying a discharge stream from the reactor including the reaction product to a separation device and supplying a lower discharge stream from the separation device to a settling tank; adding an organic flocculant to the settling tank to settle and remove a polymer and supplying the lower discharge stream from the separation device from which the polymer is removed to a high boiling point separation column; and removing a high boiling point material from the lower portion in the high boiling point separation column and supplying an upper discharge stream including an oligomer to a solvent separation column.

Abstract: An aerosol generating device includes a main body and a cartridge detachably coupled to the main body. The main body includes a controller, a battery, and a first wireless communication unit. The cartridge includes a second wireless communication unit. The controller controls output power of the battery to apply a power pattern to the cartridge, and the first wireless communication unit establishes a wireless connection with the second wireless communication unit when power supplied from the battery to the cartridge matches a preset power pattern.

Abstract: A cartridge for an aerosol generating device is provided, which includes a storage configured to store an aerosol generating material; a heating element configured to generate aerosol by heating the aerosol generating material; an aerosol discharge passage configured to discharge the aerosol in one direction; and a cap coupled to one end of the storage to seal the storage; and a droplet accommodation portion formed in the cap and located on an extension line of the aerosol discharge passage to accommodate droplets formed from the aerosol.

Abstract: Provided is a method of cleaning an aerosol generating device, the method including: receiving a user input for performing a cleaning operation; obtaining information about a performance history of the cleaning operation in response to the user input; setting a mode of the cleaning operation to one of a plurality of cleaning modes based on the information about the performance history; and performing the cleaning operation according to the set cleaning mode.

Abstract: An aerosol generating device may include a heater configured to heat an aerosol generating material, a battery configured to supply power to the heater, and a controller. In addition, the aerosol generating device may further include a user input detection sensor configured to receive a user's input and a pressure detection sensor configured to sense pressure. The controller may, in response to the user's input being sensed by using the user input detection sensor, obtain an initial pressure sensing value by using the pressure detection sensor. In addition, the controller may determine a reference pressure value based on the initial pressure sensing value and determine whether a puff of the aerosol generating device has occurred based on the reference pressure value.

Abstract: The present disclosure relates to an apparatus for preparing an oligomer, the apparatus including: a reactor for oligomerizing a feed stream containing a fed monomer; a stirrer inserted into a hole formed in an upper portion of the reactor; and a solvent transfer line extending inward from a side of the reactor, wherein the stirrer includes a rotating shaft vertically extending downward from the upper portion of the reactor, and a blade having a conical shape whose vertex is positioned at a lower end of the rotating shaft and outer diameter increases from a bottom toward a top, and the solvent transfer line has a plurality of spray nozzles formed in a direction toward the blade.

Abstract: Provided is a method of producing an oligomer, the method including: supplying a monomer stream and a solvent stream to a reactor to perform an oligomerization reaction to produce a reaction product; supplying a discharge stream of the reactor to a separation device, and supplying an upper discharge stream of the separation device including an unreacted monomer to the reactor and supplying a lower discharge stream of the separation device to a settling tank; settling a polymer in the settling tank and removing the polymer, and supplying the lower discharge stream of the separation device from which the polymer is removed to a high-boiling point separation column; removing a high-boiling point material from a lower discharge stream of the high-boiling point separation column and supplying an upper discharge stream of the high-boiling point separation column including an oligomer to a solvent separation column; and separating a solvent and the oligomer in the solvent separation column.

Abstract: An aerosol generation device includes a first housing including an inner accommodating space and an opening exposing the inner accommodating space to an outside of the first housing; a second housing including an inner space and coupled to the first housing with a fastening portion; a battery inserted into the inner space of the second housing and having a part exposed to an outside of the second housing; a case into which the second housing is inserted, the case covering at least one of the first housing or the second housing; and a cap coupled to the first housing and covering the first housing, wherein the case covers the part of the battery exposed to the outside of the second housing.

Abstract: There is provided an aerosol generating device including: an aerosol generating material delivery element configured to absorb an aerosol generating material stored in the cartridge; a heating element configured to heat the aerosol generating material; a support that includes a through-hole and accommodates the heating element and the aerosol generating material delivery element such that an end of the heating element passes through the through-hole and is exposed to an outside of the support; and a connector comprising a terminal providing power, and coupled to the support such that the end of the heating element contacts the terminal.

Abstract: According to some embodiments, there is disclosed an aerosol generating device which includes: a main body including a controller and a battery; and a cartridge detachably coupled to the main body, wherein the controller periodically detects whether the cartridge is coupled to the main body while the aerosol generating device operates in a first mode, determines whether a preset period of time has elapsed based on the cartridge being determined to have been separated from the main body, and switches the aerosol generating device from the first mode to a second mode based on whether the cartridge is coupled to the main body before the preset period of time elapses.

Abstract: Provided is an aerosol generating system including a holder configured to generate aerosol by heating a cigarette; and a cradle including an inner space into which the holder is inserted. The holder is configured to be tiltable with respect the cradle. The holder is inserted into the inner space of the cradle and then tilted to generate the aerosol.

Abstract: A cartridge includes a storage configured to store an aerosol generating material; a heater configured to heat the aerosol generating material to generate aerosol; and at least one terminal configured to transfer power from an external battery to the heater and comprising a conductive structure surrounding a wire connected to the heater, wherein the conductive structure takes a compressed form in which the wire is in contact with the conductive structure.

Abstract: Provided is an aerosol generating system including a holder configured to generate aerosol by heating a cigarette; and a cradle including an inner space into which the holder is inserted. The holder is configured to be tiltable with respect the cradle. The holder is inserted into the inner space of the cradle and then tilted to generate the aerosol.

Abstract: According to an exemplary embodiment, provided is an aerosol generation apparatus including: a liquid cartridge comprising a storage unit configured to store an aerosol-generating substrate which is liquid-type and an atomizer configured to generate aerosol by heating the aerosol-generating substrate; a mouth tip located at one end of the aerosol generation apparatus and comprising a filter unit configured to adsorb at least one material included in the generated aerosol; and an aerosol heating unit configured to heat the generated aerosol when the generated aerosol is inhaled by a user through the mouth tip.

Abstract: An aerosol-generating article may be fabricated in the form of a bead. For example, the aerosol-generating article may be fabricated in the form of a sphere having a predetermined diameter. Alternatively, the aerosol-generating article may be fabricated in an oval shape, a droplet shape, etc. Also, the aerosol-generating article may be fabricated in various sizes.