Abstract: A battery rack according to the present disclosure includes a plurality of battery modules; a rack case having receiving portions, each receiving portion configured to and receive one of the plurality of battery modules at each predetermined height, and each receiving portion having a structure in which upper and lower sides and left and right sides are closed and front and rear sides are open; a fire fighting water supply pipe connected to each of the battery modules disposed in the receiving portions which supplies a fire fighting water when a fire occurs; and a drain guide disposed on an outer surface of the rack case including at least one surface of a front outer surface or a rear outer surface of the rack case, the drain guide being configured to guide drainage of the fire fighting water.

Abstract: A communication system includes a transmitter that encodes binary bits of each of a plurality of data streams into a plurality of symbols and converts the plurality of symbols into a plurality of output signals, respectively corresponding to a plurality of channels, the converting based on a transmission rule defined by a first matrix; and a receiver that combines the plurality of output signals, received through the plurality of channels, the combining based on a reception rule defined by a second matrix, the combining restoring the plurality of symbols, and the receiver decodes the plurality of symbols into the binary bits. The first matrix and the second matrix are determined based on a third matrix that models a crosstalk effect between adjacent channels from among the plurality of channels, to reduce the crosstalk effect.

Abstract: Disclosed herein is a headrest air-conditioning device for vehicles, wherein a heater plate with planar heating elements on both sides thereof is installed inside a casing, and the heater plate divides the interior space of the casing to form an inflow passage and an outflow passage. Accordingly, it is possible to effectively heat air with low power and to reduce flow resistance and thus power consumption.

Abstract: A capacitor-less low dropout regulator includes: a capacitor-less dual feedback loop unit including a plurality of feedback resistors, an error amplifier, and a transconductance cell to form a main loop passing through the error amplifier and a sub-loop passing through the gm cell without passing through the error amplifier; a dynamic compensation unit connected to a first main pole located at an output of the error amplifier and a second main pole located at an output of the gm cell to provide dynamic frequency compensation using a Miller effect to the first main pole and the second main pole according to a load current of the capacitor-less dual feedback loop unit; and a load current measurement unit configured to measure a load current of a third main pole formed at a load of the dual feedback loop unit to provide the load current to the dynamic compensation unit.

Abstract: Disclosed herein is a headrest air-conditioning device for vehicles, wherein a heater plate with planar heating elements on both sides thereof is installed inside a casing, and the heater plate divides the interior space of the casing to form an inflow passage and an outflow passage. Accordingly, it is possible to effectively heat air with low power and to reduce flow resistance and thus power consumption.

Abstract: Disclosed herein is an independent air-conditioning seat for vehicles, wherein a plurality of discharge members are installed on a circumference of a seat body and the upper surface of the exit of the discharge member hole of each discharge member is formed as a curved surface connected to the side wall of the seating space of the seat body. Therefore, due to the Coanda effect, the air discharged from the discharge member flows closer to the seat body, thereby reducing an independent air-conditioning space in size.

Abstract: The present invention relates to a lighting device and a control method therefor. The lighting device according to the present invention comprises: a light source unit comprising one or more light emitting elements; a first body to which the light source unit is mounted; a second body; a sensor unit for sensing at least one of a relative posture and a relative position of the first body to the second body; and a control unit for controlling the light emitting operation of the light source unit on the basis of at least one of the relative posture and the relative position of the first body.

Abstract: A semiconductor system including a transmitter configured to output a plurality of data as a plurality of data input/output signals through a plurality of channels based on a matrix E, and a receiver configured to generate the plurality of data by differentially amplifying the plurality of data input/output signals received through the plurality of channels based on a matrix D, in which all components of the matrix E and the matrix D are integers, a product matrix of the matrix D and the matrix E is a diagonal matrix, a sum of the components of each row of the matrix D is 0, and a sum of absolute values of the components of each column of the matrix D is less than or equal to a threshold value.

Abstract: A cryogenic liquid storage apparatus includes an inner container configured to store a cryogenic liquid, an inner holder disposed at the inner container, an outer container that surrounds the inner container, an outer holder disposed at the outer container, and a support wire that is a single body defining a closed-loop shape passing through the outer holder and the inner holder. The support wire is configured to support the inner container with respect to the outer container.

Abstract: A center pillar for a vehicle with improved stiffness, which has a sufficient stiffness in the event of rollover or a side collision of the vehicle, includes: a center pillar internal upper including an upper portion coupled to a roof side rail internal; and a center pillar internal lower including an upper portion coupled to a lower portion of the center pillar internal upper, and a lower portion coupled to a side sill to configure a center pillar internal, in which a center pillar reinforcement internal is coupled to an external surface of the center pillar internal, and a center pillar reinforcement external is coupled to an external surface of the center pillar reinforcement internal.

Abstract: The present invention relates to a lighting device and a control method therefor. The lighting device according to the present invention comprises: a light source unit comprising one or more light emitting elements; a first body to which the light source unit is mounted; a second body; a sensor unit for sensing at least one of a relative posture and a relative position of the first body to the second body; and a control unit for controlling the light emitting operation of the light source unit on the basis of at least one of the relative posture and the relative position of the first body.

Abstract: A capacitor-less low dropout regulator includes: a capacitor-less dual feedback loop unit including a plurality of feedback resistors, an error amplifier, and a transconductance cell to form a main loop passing through the error amplifier and a sub-loop passing through the gm cell without passing through the error amplifier; a dynamic compensation unit connected to a first main pole located at an output of the error amplifier and a second main pole located at an output of the gm cell to provide dynamic frequency compensation using a Miller effect to the first main pole and the second main pole according to a load current of the capacitor-less dual feedback loop unit; and a load current measurement unit configured to measure a load current of a third main pole formed at a load of the dual feedback loop unit to provide the load current to the dynamic compensation unit.

Abstract: Provided is a scroll compressor which has a reduced noise vibration by minimizing an impact sound generated when the operation of the scroll compressor is stopped.

Abstract: Provided is an aluminum ion detector. The aluminum ion detector may include apple extracts having a predetermined concentration, and metal nano particles coupled to the apple extracts.

Abstract: The present disclosure relates to a horizontal linear vibrating motor, and more particularly, to a horizontal linear vibrating motor which has a smaller size than existing liner motors so as to be mounted on a small-size wearable watch, smart band or the like, while providing a strong vibration.

Abstract: The present disclosure relates to a lightweight noise absorbing material and a substrate having the same attached thereto, and more particularly, to a lightweight noise absorbing material providing lightweight and excellent noise absorption performance compared to existing noise absorbing materials by including a triple thin fiber layer in which upper and lower fine fiber layers are stacked respectively on upper and lower surfaces of a fibrous non-woven fabric, and a substrate having the lightweight noise absorbing material attached thereto.

Abstract: An electronic device includes a display panel, a first power regulator to supply first power to an anode of light emitting diode and second power to a cathode of the light emitting diode, and a DDI including a second power regulator to supply third power to the anode of the light emitting diode and fourth power to the cathode of the light emitting diode, and connected with the first power regulator, and a processor. The processor outputs first content based on the first power and the second power, in a first operating mode, outputs second content based on the third power and the fourth power, in a second operating mode, and controls the third power to be higher than the first power, and the fourth power to be higher than the second power, when an operating mode is switched.

Abstract: According to various embodiments of the present invention, disclosed is an electronic apparatus comprising: a first surface; a second surface opposite the first surface; a housing including a side surface member which encases the space between the first surface and the second surface; a display panel arranged on at least a portion of the housing; a substrate including a first layer, a second layer, and at least one inner layer arranged between the first layer and the second layer; a display driving circuit which is electrically connected to the display panel and the substrate; and a power regulator which is electrically connected to the display driving circuit through the substrate, wherein the power regulator supplies power to the display driving circuit through the at least one inner layer so that the display driving circuit generates a gray scale voltage. Other various embodiments identified through the specification are also enabled.