Abstract: A display apparatus includes: a display module including a substrate on which a plurality of light emitting diodes (LEDs) are mounted, a holder covering a rear side of the substrate, a reinforcement member provided on a rear side of the holder, and a fixing member protruding rearward from the holder; a cabinet provided to support the display module and including a plurality of first magnets and a through hole through which the fixing member passes; and a circuit case including a plurality of second magnets and coupled to the cabinet. The display module is coupled to the cabinet by a first magnetic attraction between the plurality of first magnets and the reinforcement member and a second magnetic attraction between the plurality of second magnets and the reinforcement member.

Abstract: A display apparatus includes: a display module including a substrate on which a plurality of light emitting diodes (LEDs) are mounted; a cabinet provided to support the display module; and a circuit case attached to the cabinet. The display module is provided to be detachable from and mountable on a front side of the cabinet, and the display module is provided to be detachable from and mountable on a rear side of the cabinet.

Abstract: A display apparatus includes: a display module including a substrate on which a plurality of light emitting diodes (LEDs) are mounted, a holder covering a rear side of the substrate, a reinforcement member provided on a rear side of the holder, and a fixing member protruding rearward from the holder; a cabinet provided to support the display module and including a plurality of first magnets and a through hole through which the fixing member passes; and a circuit case including a plurality of second magnets and coupled to the cabinet. The display module is coupled to the cabinet by a first magnetic attraction between the plurality of first magnets and the reinforcement member and a second magnetic attraction between the plurality of second magnets and the reinforcement member.

Abstract: Provided are a magnetic tunneling junction device having a relatively high tunneling magnetoresistance (TMR) ratio; and a memory device including the magnetic tunneling junction device. The magnetic tunneling junction device includes: a pinned layer having a first surface and a second surface opposite the first surface; a seed layer disposed in contact with the first surface of the pinned layer; a free layer disposed to face the second surface of the pinned layer; and a tunnel barrier layer disposed between the pinned layer and the free layer, wherein the seed layer includes at least one amorphous material selected from CoFeX and CoFeXTa, and the X includes at least one element selected from niobium (Nb), molybdenum (Mo), tungsten (W), chromium (Cr), zirconium (Zr), and hafnium (Hf). The seed layer may not include boron.

Abstract: Provided are a magnetic tunneling junction device having a relatively high tunneling magnetoresistance (TMR) ratio; and a memory device including the magnetic tunneling junction device. The magnetic tunneling junction device includes: a pinned layer having a first surface and a second surface opposite the first surface; a seed layer disposed in contact with the first surface of the pinned layer; a free layer disposed to face the second surface of the pinned layer; and a tunnel barrier layer disposed between the pinned layer and the free layer, wherein the seed layer includes at least one amorphous material selected from CoFeX and CoFeXTa, and the X includes at least one element selected from niobium (Nb), molybdenum (Mo), tungsten (W), chromium (Cr), zirconium (Zr), and hafnium (Hf). The seed layer may not include boron.

Abstract: Provided are a magnetic tunneling junction device having a fast operating speed without reducing or with increasing data retention and/or a memory device including the magnetic tunneling junction device. The magnetic tunneling junction device includes a free layer having a first surface and a second surface opposite the first surface; a pinned layer facing the first surface of the free layer; a first oxide layer between the pinned layer and the free layer; and a second oxide layer on the second surface of the free layer. The free layer includes a first free layer adjacent to the first oxide layer and a second free layer adjacent to the second oxide layer. The first free layer includes a magnetic material not doped with a non-magnetic metal, and the second free layer includes a magnetic material doped with the non-magnetic metal.

Abstract: A semiconductor device includes a substrate; a first stack structure including first gate electrodes on the substrate; and a second stack structure on the first stack structure; wherein the first stack structure includes a first lower staircase region, a second lower staircase region, and a third lower staircase region, wherein the second stack structure includes a first upper staircase region, a second upper staircase region, a third upper staircase region, and at least one through portion penetrating the second stack structure and on the first to third lower staircase regions, wherein the first lower staircase region has a same shape as a shape of the first upper staircase region, the second lower staircase region has a same shape as a shape of the second upper staircase region, and the third lower staircase region has a same shape as a shape of the third upper staircase region.

Abstract: According to various embodiments of the disclosure, an electronic device may comprise a first structure, a second structure receiving at least a portion of the first structure and guiding a sliding movement of the first structure, a flexible display including a first area connected with the first structure and a second area extending from the first area and bendable, and a sweeper member formed to slide along an inside of the second structure while being attached to an end of the second area of the flexible display, in response to the sliding movement of the flexible display.

Abstract: A fluid-cooled electromagnet includes an upper housing, a lower housing vertically aligned with the upper housing, a plurality of pancake coils disposed between the upper housing and the lower housing to be spaced apart from each other and sequentially stacked to have a washer shape, and at least one spacer, disposed between the upper housing and the lower housing, accommodating the pancake coils at regular intervals.

Abstract: A content selling service operating device according to an embodiment of the present disclosure comprises: a communication interface connected to a terminal of a user to receive, from the terminal, a request for purchasing action robot content corresponding to multimedia content; an action robot content generator configured to generate action robot content including motion data for the multimedia content; and a processor configured to control the communication interface to transmit the generated action robot content to an action robot or the terminal of the user.

Abstract: Provided are an ultra-low field nuclear magnetic resonance device and a method for measuring an ultra-low field nuclear resonance image. The ultra-low field nuclear magnetic resonance device includes an AC power supply configured to supply a current to a measurement target in such a manner the current flows to the measurement target, magnetic field measurement means disposed adjacent to the measurement target, and measurement bias magnetic field generation means configured to apply a measurement bias magnetic field corresponding to a proton magnetic resonance frequency of the measurement target. A vibration frequency of the AC power supply matches the proton magnetic resonance frequency of the measurement target, and the magnetic field measurement means measures a nuclear magnetic resonance signal generated from the measurement target.

Abstract: A bioelectrical signal measuring apparatus includes a mucosa contact electrode brought into contact with a nasal cavity mucosa or an oral cavity mucosa to apply a negative pressure and to measure a bioelectrical signal, an insertion tube, having one end supporting the mucosa contact electrode, inserted into a nasal cavity and bent, and a lead wire, connected to the mucosa contact electrode and connected to an amplifier disposed outside, extending in the insertion tube.

Abstract: A fluid-cooled electromagnet includes an upper housing, a lower housing vertically aligned with the upper housing, a plurality of pancake coils disposed between the upper housing and the lower housing to be spaced apart from each other and sequentially stacked to have a washer shape, and at least one spacer, disposed between the upper housing and the lower housing, accommodating the pancake coils at regular intervals.

Abstract: A cryocooler superconducting quantum interference (SQUID) system includes a cryocooler including a cold head, a cold head chamber in which the cold head is disposed, a sensor chamber including a SQUID sensor cooled to a low temperature by the cryocooler; and a connection block connecting the cold head and a thermal anchor disposed in the sensor chamber to each other to cool the SQUID sensor in the sensor chamber.

Abstract: Superconducting quantum interference device (SQUID) sensor module and a magnetoencephalography (MEG) measuring apparatus. The SQUID sensor module includes a fixed block having one end fixed to the sensor-mounted helmet, a bobbin having one end combined with the other end of the fixed block and having a groove in which a pick-up coil is wound, a bobbin fixing or attachment structure or material fixed to the other end of the fixed block via a through-hole formed in the center of the bobbin, a SQUID printed circuit board (PCB) disposed one an upper side surface of the bobbin and including a SQUID sensor, and a signal line connection PCB inserted into an outer circumferential surface of the fixed block and adapted to transmit a signal detected in the SQUID sensor to an external circuit.

Abstract: A battery cell includes an electrode assembly mounted in a battery case. The electrode assembly includes positive electrodes, negative electrodes, and separators, wherein the separators are disposed respectively between the positive electrodes and the negative electrodes. The electrode assembly is provided with a deformation part, and has a sectional width of which is discontinuously or continuously decreased, and is formed at a portion of an outer edge of the electrode assembly. The battery case includes two or more case members, each made of a metal sheet, the case members being coupled to each other in a state in which the electrode assembly is mounted in the case members, at least one of the case members having a receiving part with an internal shape corresponding to the deformation part of the electrode assembly.

Abstract: A magnetoencephalography (MEG) measuring apparatus and an MEG measuring method. The MEG measuring apparatus includes a superconducting helmet having an inward brim, a sensor-equipped helmet disposed inside the superconducting helmet, a pick-up coil disposed inside the sensor-equipped helmet, and a superconducting quantum interference device (SQUID) sensor mounted on the sensor-equipped helmet and connected to the pick-up coil.

Abstract: Provided are an ultra-low field nuclear magnetic resonance device and a method for measuring an ultra-low field nuclear resonance image. The ultra-low field nuclear magnetic resonance device includes an AC power supply configured to supply a current to a measurement target in such a manner the current flows to the measurement target, magnetic field measurement means disposed adjacent to the measurement target, and measurement bias magnetic field generation means configured to apply a measurement bias magnetic field corresponding to a proton magnetic resonance frequency of the measurement target. A vibration frequency of the AC power supply matches the proton magnetic resonance frequency of the measurement target, and the magnetic field measurement means measures a nuclear magnetic resonance signal generated from the measurement target.

Abstract: A semiconductor device and a method of forming the semiconductor device are disclosed. The semiconductor device includes a lower electrode and a magnetic tunnel junction structure disposed on the lower electrode. The magnetic tunnel junction structure includes a seed pattern disposed on the lower electrode. The seed pattern includes an amorphous seed layer and an oxidized seed layer disposed on a surface of the amorphous seed layer. The seed pattern may prevent the lattice structure of the lower electrode from adversely affecting the lattice structure of a pinned magnetic layer of the magnetic tunnel junction structure.

Abstract: Provided is a low magnetic field and ultra-low magnetic field NMR and MRI apparatus. The low magnetic field and ultra-low magnetic field NMR and MRI apparatus includes a SQUID sensor and a prepolarization magnetic field coil. The prepolarization magnetic field coil generates a prepolarization magnetic field to polarize a sample. The prepolarization magnetic coil generates a counter pulse in a direction opposite to that of the prepolarization magnetic field immediately before or immediately after the prepolarization magnetic field is generated. The counter pulse demagnetizes wanted magnetization including that of the prepolarization magnetic field coil itself.