Abstract: The wireless charging device according to an embodiment allows adjustment of characteristics, including the distance between a coil and a magnetic material, to be within particular numerical ranges and thus has high charging efficiency, facilitates assembly, and can be improved in durability. Therefore, the wireless charging device is useful in a transportation means, such as an electric vehicle, requiring high-capacity power transmission between a transmitter and a receiver.

Abstract: A wireless charging apparatus according to an embodiment includes a magnetic unit with a low strain rate (thermal strain) at 180° C., wherein a position change (?DR1) at 180° C. is 0.07 or less, to thereby provide the magnetic unit with improved heat resistance and magnetic properties and prevent deformation and damage of the magnetic unit during wireless charging, and further improve the high temperature stability and charging efficiency. Therefore, the wireless charging apparatus can be efficiently used in personal transportation means such as electric motorcycles, electric kickboards, electric scooters, electric wheelchairs, and electric bicycles, as well as transportation means such as electric vehicles requiring large-capacity power transmission between a transmitter and a receiver.

Abstract: A light emitting device includes a first light emitting part including a first n-type semiconductor layer, and a first mesa structure including a first active layer, a first p-type semiconductor layer, and a first transparent electrode vertically stacked one over another and exposing a portion of a first surface of the first n-type semiconductor layer, a second light emitting part spaced apart from the first mesa structure, and including a second n-type semiconductor layer, a second active layer, a second p-type semiconductor layer, and a second transparent electrode and exposing a portion of a first surface of the second n-type semiconductor layer, and a first bonding layer on which the first and second light emitting parts are disposed and electrically coupling the first n-type semiconductor layer and the second n-type semiconductor layer to each other.

Abstract: A wireless charging device according to an embodiment can enhance charging efficiency and minimize heat generation while having an appropriate thickness by satisfying a specific expression in which characteristics including the distance between a magnetic part and a shield part and a Q factor are reflected. Therefore, the wireless charging device is useful for a mobility means, such as an electric vehicle, requiring high-capacity power transmission between a transmitter and a receiver.

Abstract: A wireless charging device according to the present invention comprises a hybrid-type magnetic unit including a first magnetic unit and a second magnetic unit and, by adjusting the magnetic permeability, inductance, and arrangement structure of the units, can effectively reduce a heat generated during high power density wireless charging and enhance charging efficiency. Therefore, the wireless charging device can be efficiently used in various fields of personal transportation means such as electric motorcycles, electric kickboards, electric scooters, electric wheelchairs, and electric bicycles, as well as fields requiring large-capacity power transmission such as electric vehicles.

Abstract: A wireless charging apparatus for a transportation means according to an embodiment comprises a magnetic unit having a moisture absorption rate adjusted to a specific range, and accordingly, high magnetic properties and charging efficiency may be provided under a frequency and high power applied to wireless charging. Therefore, the wireless charging apparatus can be applied to a transportation means, such as an electric vehicle requiring a large amount of power transmission between a transmitter and a receiver.

Abstract: The present invention provides a heating tray for a vacuum hopper precharger, wherein a heating part is configured in a tray having a secondary battery mounted thereon to allow heat generated from the heating part to be circulated inside a vacuum hopper precharger and to be transferred to the entire secondary battery so that the activity of an electrolyte inside the secondary battery is improved, and according thereto, a large amount of residual gas and impurities can be discharged so as to increase purity of the secondary battery. Particularly, the secondary battery can be fully charged with an electrolyte inside the vacuum hopper precharger, thereby improving productivity compared to a conventional configuration in which a secondary battery is charged with an electrolyte at 60% to 70% inside a vacuum hopper precharger and then charged with a remaining charge amount in another process so as to be fully charged.

Abstract: A light emitting package includes a first LED sub-unit having first and second opposed surfaces, a second LED sub-unit disposed on the second surface of the first LED sub-unit, a third LED sub-unit disposed on the second LED sub-unit, a plurality of connection electrodes having side surfaces and electrically connected to at least one of the LED sub-units, the connection electrodes covering a side surface of at least one of the LED sub-units, a first passivation layer surrounding at least the sides surfaces of the connection electrodes, the first passivation layer exposing at least a portion of the first surface of the first LED sub-unit, a substrate having first and second opposed surfaces, with the first surface of the substrate facing the LED sub-units, and a first electrode disposed on the first surface of the substrate and connected to at least one of the connection electrodes.

Abstract: A battery can include an electrode assembly having a first electrode, a second electrode and a separator. The first electrode can include a first active material region coated with an active material layer along a winding direction and a first uncoated region not coated with the active material layer, and at least part of the first uncoated region used as an electrode tab. The battery can further include a first current collector coupled to at least part of the first uncoated region on the electrode assembly, a battery housing to accommodate the electrode assembly and the first current collector, and an insulator between an inner surface of the battery housing facing the first uncoated region or the first current collector and the first uncoated region or the first current collector to block the electrical connection between the first uncoated region and the battery housing.

Abstract: Disclosed are an object detection device and a control method. A method for controlling an object detection device comprises the steps of: receiving one image; dividing the received image into a predetermined number of local areas on the basis of the size of a convolutional layer of a convolution neural network (CNN); identifying small objects at the same time by inputting a number of the divided local areas corresponding to the number of CNN channels to each of a plurality of CNN channels; sequentially repeating the identifying of the small objects for each of the remaining divided local areas; selecting MM mode or MB mode; setting an object detection target area corresponding to the number of CNN channels on the basis of the selected mode; and detecting the small objects at the same time by inputting each set object detection target area to each of the plurality of CNN channels.

Abstract: A light emitting device including a board, a first stacked structure configured to emit light having a first wavelength, a second stacked structure configured to emit light having a second wavelength, a third stacked structure configured to emit light having a third wavelength, a first connection electrode electrically connected to the first stacked structure, the second stacked structure, and the third stacked structure, and a protection material covering at least a portion of the first connection electrode, in which each of the first, second, and third stacked structures is configured to selectively emit light while being connected to the first connection electrode, and the protection material is configured to transmit at least 50% of light having the first wavelength, light having the second wavelength, and light having the third wavelength upon operation of each of the first, second, and third stacked structures.

Abstract: A multilayer ceramic capacitor includes a ceramic body including a dielectric layer and including first and second surfaces opposing each other, third and fourth surfaces connecting the first and second surfaces. A plurality of internal electrodes is disposed inside the ceramic body, connected to the first and second surfaces, and have one ends connected to the third and fourth surfaces. First and second side margin parts are disposed on end portions of the internal electrodes connected to the first and second surfaces. The ceramic body includes an active portion forming capacitance by including the plurality of internal electrodes disposed to oppose each other with the dielectric layer interposed therebetween. An average Sn content in a region adjacent to the side margin part of the active portion is greater than an average Sn content in a central region of the active portion.

Abstract: Disclosed are a resin composition and a vehicle part (e.g., an air intake hose) including the same. The resin composition includes a base resin and an additive, the base resin including a polyester-based elastomer and an engineering plastic. As manufactured using the resin composition described herein, the air intake hose may have a low specific gravity and excellent oil resistance and mechanical properties.

Abstract: A pre-coating filter device includes: a filtration tank comprising a raw water inlet through which raw water flows on one side, and a drain port at the bottom; a top cover coupled to the upper part of the filtration tank and comprising a coupling hole through the middle part; a purified water discharge pipe coupled to the coupling hole of the top cover; a purified water storage space unit coupled to the lower part of the top cover and located within the filtration tank, and comprising a communication pipe connected to the central part; a filter coupling plate body coupled to the lower part of the purified water storage space unit and comprising a plurality of coupling holes through; and a pre-coating filter coupled to the coupling hole of the filter coupling plate body.

Abstract: Provided is a valve assembly including: a valve housing inserted into, after removing a portion of an exhaust line of a vacuum chamber, the removed portion of the exhaust line to be open in a direction communicating with the exhaust line and to have a predetermined inner space in a direction perpendicular to the direction communicating with the exhaust line; a valve movable horizontally inside the valve housing to allow the valve housing to communicate with the exhaust line or to be blocked from the exhaust line; a valve driving part disposed on one side of the valve housing in such a manner as to be connected to the valve so as to horizontally move the valve in a direction perpendicular to the exhaust line; and valve movement guide parts disposed inside the valve housing so as to guide a moving path of the valve.

Abstract: Provided is a valve assembly including: a valve housing inserted into, after removing a portion of an exhaust line of a vacuum chamber, the removed portion of the exhaust line to be open in a direction communicating with the exhaust line and to have a predetermined inner space in a direction perpendicular to the direction communicating with the exhaust line; a valve movable horizontally inside the valve housing to allow the valve housing to communicate with the exhaust line or to be blocked from the exhaust line; a valve driving part disposed on one side of the valve housing in such a manner as to be connected to the valve so as to horizontally move the valve in a direction perpendicular to the exhaust line; and valve movement guide parts disposed inside the valve housing so as to guide a moving path of the valve.

Abstract: Provided are a method for patterning a mesoporous inorganic oxide film, the method including a step of forming a mesoporous inorganic oxide film using a composition containing inorganic oxide particles; and a step of forming a pattern on the mesoporous inorganic oxide film using an elastic stamp for pattern formation, and then calcining the mesoporous inorganic oxide, and an electronic device including a mesoporous inorganic oxide film that has been patterned by the patterning method.

Abstract: A semiconductor light emitting device includes a substrate formed of a first material; and a convex portion protruding from the substrate and including: a first layer formed of the first material as that of the substrate; and a second layer formed of a second material different from the first material and disposed on the first layer. A second height of the second layer is greater than a first height of the first layer.

Abstract: A steel plate structure and a steel plate concrete wall are disclosed. A steel plate structure, which includes: a pair of steel plates, which are separated to provide a predetermined space; a structural member, which is positioned in the predetermined space, and which is structurally rigidly joined to one side of the steel plate in the direction of gravity; and a strut, which maintains a separation distance between the pair of steel plates, can be utilized to reduce the overall thickness of a steel plate concrete wall for efficient use of space, and to reduce the thickness of the steel plates for better welding properties and larger unit module sizes. Also, the axial forces or lateral forces applied on the steel plate concrete wall may be effectively resisted.

Abstract: A light-emitting device includes a first conductive type semiconductor layer, a second conductive type semiconductor layer, and an active layer between the first conductive type semiconductor layer and the second conductive type semiconductor layer and having a plurality of V-pits. The light-emitting device further includes a layer-quality improvement layer between the first conductive type semiconductor layer and the second conductive type semiconductor layer and having a plurality of V-pits with substantially same size and shape as the plurality of V-pits of the active layer, wherein layer-quality improvement layer is a group III-V semiconductor layer including Al or In. Due to the improved layer quality, the luminescent quality of the light-emitting device is improved.