Abstract: A printed circuit board according to an embodiment includes a first insulating layer, a pad portion disposed on the first insulating layer, a connection portion disposed on the pad portion and including a protruding portion and a first recess portion disposed inside the protruding portion, and a second insulating layer disposed on a part of the connection portion and exposing a part of the connection portion, wherein a height of the first recess portion of the connection portion from the first insulating layer is higher than a second height of the second insulating layer disposed on a side of the connection portion.

Abstract: The present disclosure provides that the air conditioning system includes a compressor, a condenser, an expansion valve, and an evaporator through which a refrigerant circulates; an indoor unit in which the evaporator is disposed; an outdoor unit; and a dehumidification unit connected to the indoor unit, in which the dehumidification unit includes a regeneration channel including a first outdoor air inlet and an outdoor outlet, a dehumidification channel including an indoor air inlet or a second outdoor air inlet and an indoor supply, a dehumidification rotor disposed between the regeneration channel and the dehumidification channel, and a heat exchange unit disposed between the dehumidification rotor and the first outdoor air inlet in the regeneration channel to heat passing air, and the indoor unit is configured such that the air supplied from the indoor supply unit passes through the evaporator and then is supplied to a room.

Abstract: Disclosed are a method and an apparatus for managing a user profile. A user profile management method performed by a server according to an example embodiment includes creating a plurality of profiles corresponding to a user account, receiving a view request for a profile of the other user account in a predetermined relationship with the user account from a user terminal logged in with the user account, providing a UI of a profile of the other user account including an interfacing object regarding the profile of the user account to the user account, receiving an input for selecting a profile to be displayed on the other user terminal logged in the other user account, among a plurality of profiles corresponding to the user account through the interfacing object, and matching the other user account with the selected profile.

Abstract: The present invention relates to a culturing apparatus for culturing potato tissue, the culturing apparatus including a culture table including a plurality of vertical frame parts erected to be spaced apart from each other and a horizontal frame part connecting the vertical frame parts, a shelf part which slidably moves on the horizontal frame part, on which a culture container which accommodates a plantlet cultured in a medium is seated and which includes a plurality of hole parts on a bottom surface thereof, a light emitting diode (LED) light source unit that is installed in the culture table and irradiates the culture container with a light beam, a condensation measurement unit that is installed in the shelf part and measures condensation generated in the culture container by irradiating the culture container with infrared rays, and a cooling unit that is installed in the culture table, is electrically connected to the condensation measurement unit, and circulates cooling water passing through the LED ligh

Abstract: The present invention relates to a heat pump and a control method thereof. The heat pump of the present invention includes: a first heat exchanger disposed indoors, a second heat exchanger and a third heat exchanger disposed outdoors, a fluid tube connected to the first heat exchanger, the second heat exchanger and the third heat exchanger, a compressor and an expansion valve unit disposed on the fluid tube, a flow path switching valve unit configured to switch a path of a fluid discharged from the compressor to flow into at least one of the first heat exchanger, the second heat exchanger and the third heat exchanger, a processor connected to the flow path switching valve unit, and a storage unit connected to the processor.

Abstract: A printed circuit board according to an embodiment includes an insulating layer; a first pad disposed on an upper surface of the insulating layer; a second pad disposed on a lower surface of the insulating layer; a first device mounted on the first pad; a second device mounted on the second pad; a first molding layer disposed on the insulating layer and molding the first device; and a second molding layer disposed on the lower surface of the insulating layer and molding the second device, wherein a lower surface of the second molding layer is positioned on the same plane as a lower surface of the second device.

Abstract: A printed circuit board includes: a first insulating layer; a via pad disposed on an upper surface of the first insulating layer; a second insulating layer disposed on the upper surface of the first insulating layer and having a via hole exposing at least a portion of an upper surface of the via pad; a conductor pattern disposed on the exposed upper surface of the via pad; and a via including a first metal layer covering at least a portion of each of a wall surface of the via hole, the exposed upper surface of the via pad, and the conductor pattern, and a second metal layer disposed on the first metal layer and disposed in at least a portion of the via hole.

Abstract: A printed circuit board according to an embodiment includes an insulating layer; a first pad disposed on an upper surface of the insulating layer; a second pad disposed on a lower surface of the insulating layer; a first device mounted on the first pad; a second device mounted on the second pad; a first molding layer disposed on the insulating layer and molding the first device; and a second molding layer disposed on the lower surface of the insulating layer and molding the second device, wherein a lower surface of the second molding layer is positioned on the same plane as a lower surface of the second device.

Abstract: A heating system according to the present invention includes a heat pump provided to heat inflow air using a circulating refrigerant; an air heating device provided to heat air passing through the heat pump using water heated by burning a fuel, an external air temperature acquisition unit provided to acquire an external air temperature that is a temperature of external air, and a processor electrically connected to the heat pump, the air heating device, and the external air temperature acquisition unit. In a heating mode, when the external air temperature is greater than a lower limit and less than an upper limit of a balance band, which is a predetermined temperature range, the processor is configured to control the air heating device and the heat pump so that the air is heated by the air heating device and the heat pump.

Abstract: Provided is a technology for increasing accuracy of position estimation by estimating a position of a signal source based on an error due to altitudes of a sensor and a signal source and an error due to a pitch of an aircraft as well as an error due to curvature of the earth. At this time, a position estimation method may include receiving measurement data from a plurality of sensors, estimating first position data of the signal source based on the measurement data, identifying an altitude error of the first position data, and estimating second position data that is data obtained by correcting the first position data based on the altitude error.

Abstract: The present invention provides an evaporative condenser capable of ensuring cooling performance without generating pressure loss, and provides an evaporative condenser comprising: a condensation module; a water injection module for spraying; and a blowing module, wherein the condensation module has stacked N header rows, each comprising: a first header which is disposed at one side thereof and in which a flow path is formed; and a plurality of connecting tubes for connecting the flow paths of the first header and the second header between the first header and the second header, and, here, N is a natural number greater than or equal to 2.

Abstract: Disclosed are a method and an apparatus for managing a user profile. A user profile management method performed by a server according to an example embodiment includes creating a plurality of profiles corresponding to a user account, receiving a view request for a profile of the other user account in a predetermined relationship with the user account from a user terminal logged in with the user account, providing a UI of a profile of the other user account including an interfacing object regarding the profile of the user account to the user account, receiving an input for selecting a profile to be displayed on the other user terminal logged in the other user account, among a plurality of profiles corresponding to the user account through the interfacing object, and matching the other user account with the selected profile.

Abstract: Disclosed are a method and an apparatus for managing a user profile. A user profile management method performed by a server according to an example embodiment includes creating a plurality of profiles corresponding to a user account, receiving a view request for a profile of the other user account in a predetermined relationship with the user account from a user terminal logged in with the user account, providing a UI of a profile of the other user account including an interfacing object regarding the profile of the user account to the user account, receiving an input for selecting a profile to be displayed on the other user terminal logged in the other user account, among a plurality of profiles corresponding to the user account through the interfacing object, and matching the other user account with the selected profile.

Abstract: The present invention relates to a culturing apparatus for culturing potato tissue, the culturing apparatus including a culture table including a plurality of vertical frame parts erected to be spaced apart from each other and a horizontal frame part connecting the vertical frame parts, a shelf part which slidably moves on the horizontal frame part, on which a culture container which accommodates a plantlet cultured in a medium is seated and which includes a plurality of hole parts on a bottom surface thereof, a light emitting diode (LED) light source unit that is installed in the culture table and irradiates the culture container with a light beam, a condensation measurement unit that is installed in the shelf part and measures condensation generated in the culture container by irradiating the culture container with infrared rays, and a cooling unit that is installed in the culture table, is electrically connected to the condensation measurement unit, and circulates cooling water passing through the LED ligh

Abstract: A package substrate according to an embodiment includes an insulating layer; a first outer circuit pattern disposed on an upper surface of the insulating layer; a second outer circuit pattern disposed under a lower surface of the insulating layer; a first connection portion disposed on an upper surface of a first-first circuit pattern of the first outer circuit pattern; a first contact portion disposed on the first connection portion; a first device disposed on the first connection portion through the first contact portion; a second contact portion disposed under a lower surface of a second-first circuit pattern of the second outer circuit pattern; a second device attached to the second-first circuit pattern through the second contact portion; and a second connection portion disposed under a lower surface of a second-second circuit pattern of the second outer circuit pattern; wherein the first connection portion is disposed with a first width and a first interval, and wherein the second connection portion is

Abstract: The present disclosure provides that the air conditioning system includes a compressor, a condenser, an expansion valve, and an evaporator through which a refrigerant circulates; an indoor unit in which the evaporator is disposed; an outdoor unit; and a dehumidification unit connected to the indoor unit, in which the dehumidification unit includes a regeneration channel including a first outdoor air inlet and an outdoor outlet, a dehumidification channel including an indoor air inlet or a second outdoor air inlet and an indoor supply, a dehumidification rotor disposed between the regeneration channel and the dehumidification channel, and a heat exchange unit disposed between the dehumidification rotor and the first outdoor air inlet in the regeneration channel to heat passing air, and the indoor unit is configured such that the air supplied from the indoor supply unit passes through the evaporator and then is supplied to a room.

Abstract: A printed circuit board according to an embodiment includes an insulating layer; a first pad disposed on an upper surface of the insulating layer; a second pad disposed on a lower surface of the insulating layer; a first device mounted on the first pad; a second device mounted on the second pad; a first molding layer disposed on the insulating layer and molding the first device; and a second molding layer disposed on the lower surface of the insulating layer and molding the second device, wherein a lower surface of the second molding layer is positioned on the same plane as a lower surface of the second device.

Abstract: Disclosed are a method and an apparatus for managing a user profile. A user profile management method performed by a server according to an example embodiment includes creating a plurality of profiles corresponding to a user account, receiving a view request for a profile of the other user account in a predetermined relationship with the user account from a user terminal logged in with the user account, providing a UI of a profile of the other user account including an interfacing object regarding the profile of the user account to the user account, receiving an input for selecting a profile to be displayed on the other user terminal logged in the other user account, among a plurality of profiles corresponding to the user account through the interfacing object, and matching the other user account with the selected profile.

Abstract: Disclosed are a magnesium die casting alloy, and an alloy composition for improving thermal conductivity and electrical conductivity. A magnesium die casting alloy includes an amount of about 0.5 to 2.0 wt % of aluminum (Al) and the balance magnesium (Mg), based on the total weight of the magnesium die casting alloy. Accordingly, an alloy, which has high thermal conductivity and electrical conductivity as compared to a conventional AZ91D magnesium alloy, is obtained.

Abstract: An embodiment provides a motor comprising: a stator including a through hole; a cylindrical rotor which is disposed in the through hole; a rotor center shaft which is formed in the central region of the rotor and to which a rotary shaft is coupled; and a first magnet and a second magnet which are disposed between the stator and the rotor, wherein: the rotor includes an outer contour portion and a patterned portion formed between the outer contour portion and the rotor center shaft; the patterned portion includes a plurality of unit patterns and a hollow portion formed in each of the unit patterns; the outer contour portion includes an outer circumferential surface on which the first magnet and the second magnet are disposed and an inner circumferential surface which comes in contact with the plurality of unit patterns; the inner circumferential surface of the outer contour portion further includes a first protrusion portion protruding in a first direction toward the rotor center shaft; and in the first direct