Abstract: Provided is an aerogel blanket and a method for producing the same, wherein a catalyzed sol I sufficiently and uniformly impregnated into a blanket in an impregnation tank, and the catalyzed sol is allowed to stay in the impregnation tank for a specific time to control fluidity while achieving a viscosity at which the catalyzed sol can be easily introduced into the blanket, thereby forming a uniform aerogel in the blanket. As a result, the uniformity of pore structure and thermal insulation performance of an aerogel blanket are improved, the loss of raw materials is reduced through the impregnation process, the occurrence of process problems is reduced, and the generation of dust is reduced.

Abstract: An embodiment roof assembly for a vehicle includes a roof panel including a core, an upper skin attached to a top surface of the core, and a lower skin attached to a bottom surface of the core, a face sheet disposed above the roof panel, and a foam layer interposed between the roof panel and the face sheet.

Abstract: A two-way speaker includes: a frame having a space for accommodating parts; a yoke partitioning the space of the frame vertically and having a lower surface and a side wall; a first speaker unit disposed below the yoke and having a magnet, a top plate, a voice coil, and a diaphragm; a protector disposed below the first speaker unit and protecting the diaphragm; a second speaker unit disposed above the yoke and having a magnetic circuit and a flexible-printed coil membrane (F-PCM) diaphragm having a coil pattern formed on a polymer film; and a sound emission yoke attached to an upper surface of the second speaker unit.

Abstract: A multibeam antenna including a substrate, and further includes an antenna element, a first guiding apparatus, and a second guiding apparatus disposed on the substrate. The antenna element includes a first pole configured to receive a feeding signal and a second pole that is grounded. The first guiding apparatus enables a first beam generated by the antenna element to radiate in a first direction, and the second guiding apparatus enables a second beam generated by the antenna element to radiate in a second direction. A phase center of the antenna element is at an intersecting point of a first axis and a second axis, the first axis passing through a phase center of the first guiding apparatus and parallel to the first direction, and the second axis passing through a phase center of the second guiding apparatus and parallel to the second direction.

Abstract: Systems, apparatuses, and methods for converting data to a tiling format when implementing convolutional neural networks are disclosed. A system includes at least a memory, a cache, a processor, and a plurality of compute units. The memory stores a first buffer and a second buffer in a linear format, where the first buffer stores convolutional filter data and the second buffer stores image data. The processor converts the first and second buffers from the linear format to third and fourth buffers, respectively, in a tiling format. The plurality of compute units load the tiling-formatted data from the third and fourth buffers in memory to the cache and then perform a convolutional filter operation on the tiling-formatted data. The system generates a classification of a first dataset based on a result of the convolutional filter operation.

Abstract: A transmit in-phase quadrature (IQ) amplifier includes a common gain stage to receive an input signal and to generate an amplified signal. The amplifier includes an IQ poly-phase filter coupled to the common gain stage to receive the amplified signal from the common gain stage and outputs a four-phase signal. The amplifier includes an in-phase (I) phase switching gain stage coupled to the IQ poly-phase filter to receive I components of the four-phase signal and outputs an amplified phase switching I signal. The amplifier includes a quadrature (Q) phase switching gain stage coupled to the IQ poly-phase filter to receive Q components of the four-phase signal and outputs an amplified phase switching Q signal.

Abstract: A fire-spreading prevention battery module includes a plurality of battery cells, a plurality of fire-spreading prevention pads, an upper battery frame, a plurality of upper electrode plates, a lower battery frame, a plurality of first lower electrode plates and two second lower electrode plates. Each battery cell is formed in a cylinder shape. Each fire-spreading prevention pad wraps a peripheral surface of one battery cell. The plurality of the upper electrode plates are mounted on an upper surface of the upper battery frame. The plurality of the first lower electrode plates are mounted to a middle of a lower surface of the lower battery frame. The two second lower electrode plates are mounted to two ends of the lower surface of the lower battery frame. The plurality of the first lower electrode plates are arranged between the two second lower electrode plates.

Abstract: A system configured to perform scalable video encoding is provided. The system includes a memory; and a processing unit, wherein the processing unit is configured to: receive inter-layer data and a current picture, wherein the current picture has a base layer; upsample the inter-layer data to generate residual data and reconstruction data, wherein the inter-layer data includes a base mode flag; and encode the current picture to an enhanced layer using the upsampled inter-layer data based on a block type of the base layer and the base mode flag.

Abstract: An electronic device is provided according to an embodiment of the present invention. The electronic device includes a housing, a first antenna module, a second antenna module, and a shared frame. The housing has an accommodating space. The shared frame is arranged in the accommodating space and comprises a first and a second support portion. The first antenna module is arranged on the first support portion, and the second antenna module is arranged on the second support portion. The first antenna module is for transmitting and receiving a signal of a first frequency band. The second antenna module is for transmitting and receiving a signal of a second frequency band. A virtual reference surface is defined below the housing, and a projection range of the first antenna module on the virtual reference surface partially overlaps with a projection range of the second support portion on the virtual reference surface.

Abstract: The present invention relates to a device for producing an aerogel blanket, and a method for producing an aerogel blanket. The device for producing an aerogel blanket according to present invention is a device for producing an aerogel blanket, including a supply part, which supplies a fiber containing sol, and a conveyor belt which moves the fiber supplied from the supply part, wherein the conveyor belt is provided in multiple levels to move the fiber while reversing the fiber, and a start time at which the conveyor belt reverses the fiber is before fluidity of the sol is completely lost.

Abstract: The present disclosure relates to a device for producing an aerogel blanket, and a method for producing an aerogel blanket. The device for producing an aerogel blanket according to present disclosure is a device for producing an aerogel blanket, including a supply part, which supplies a fiber containing sol, and a conveyor belt which moves the fiber supplied from the supply part, wherein the conveyor belt is provided in multiple levels to move the fiber while reversing the fiber, and a start time at which the conveyor belt reverses the fiber is before fluidity of the sol is completely lost.

Abstract: An antenna includes a first radiating arm comprising a first radiating element having a first outer edge, and a second radiating arm that is arranged orthogonally on the first radiating arm and separated from the first radiating arm in a first direction, the second radiating arm comprising a second radiating element having a second outer edge. The first outer edge of the first radiating element extends substantially parallel to the second outer edge of the second radiating element.

Abstract: A hopper and method for transferring raw material, which can prevent segregation due to the impact caused by falling of the raw material powder when different types of raw material powders are transferred. The hopper for a raw material powder according to one embodiment of the present disclosure includes: a hopper body having an inner space in which the raw material powder is stored and including an outlet which is formed through the lower end thereof and through which the raw material powder is discharged; a transfer pipe to which the raw material powder discharged through the outlet is transferred and which has a region, through which the raw material powder is transferred, divided into a plurality of regions; and a slide gate unit disposed between the outlet and the transfer pipe to open or close the transfer pipe while adjusting a degree of opening of the transfer pipe.

Abstract: A precursor structure is provided. The precursor structure has the following chemical formula: ( La 2 ? Zr 2 - x ? M x ? O 7 ) · 1 2 ? ( La 2 - y ? M y ? ? O 3 ) , wherein M is a trivalent ion or a pentavalent ion, M? is a bivalent ion, x=0-1, y=0-1.5, and the precursor structure includes a pyrochlore phase. Since the pyrochlore phase may be transformed into the garnet phase through a lithiation process and the phase transition temperature is lower (e.g., 500-1000° C.), the precursor structure may be co-fired with the cathode material (e.g., lithium cobalt oxide (LiCoO2)) to form a thin lamination structure. That is, the thickness of the solid electrolyte may be effectively reduced, thereby improving the ionic conductivity of the solid electrolyte ion battery.

Abstract: A variable resistance memory device includes a substrate, a cell array region including a plurality of memory cells on the substrate, a wiring region which includes an inter-wiring insulating film stacked on the cell array region, and an upper wiring structure in the inter-wiring insulating film and a protective film which covers an upper surface of the cell array region, between the cell array region and the wiring region, wherein each of the memory cells includes a switching pattern and a variable resistance pattern, the cell array region further includes first conductive lines extending in a first direction, and a second conductive lines extending in a second direction intersecting the first direction, and the plurality of memory cells are disposed at an intersections of the first conductive lines and the second conductive lines.

Abstract: A hybrid microspeaker includes a low-frequency range speaker and a high-frequency range speaker. The low-frequency range speaker includes a frame, a low-frequency range magnetic circuit installed inside the frame, a voice coil configured to vibrate by mutual electromagnetic force with the low-frequency range magnetic circuit, and a diaphragm seated on the frame and configured to vibrate with the voice coil to generate sound. The high-frequency range speaker includes a bracket coupled to an upper portion of the frame, a high-frequency range magnetic circuit installed inside the bracket, and a flexible printed circuit board (FPCB) seated on the bracket and including a pattern configured to vibrate by mutual electromagnetic force with the high-frequency range magnetic circuit to generate sound.

Abstract: According to one embodiment, a transformer-based in-phase and quadrature (IQ) includes a differential balun having a first inductor and a second inductor. The first inductor has a first input terminal and a first output terminal. The second inductor has a second input terminal and a second output terminal. Additionally, the IQ generator circuit includes a third inductor magnetically coupled with the first inductor. The third inductor has a first isolation terminal and a third output terminal. The IQ generator circuit also includes a fourth inductor magnetically coupled with the second inductor. The fourth inductor has a second isolation terminal and a fourth output terminal. The IQ generator circuit additionally includes a first transistor coupled to the first input terminal of the first inductor. Further, the generator circuit includes a second transistor coupled to the second input terminal of the second inductor.

Abstract: A folded Marchand Balun includes a first, a second, a third port, and a first transmission line being folded into a first and second intermediate transmission lines, the first intermediate transmission line disposed on a first signal plane and electrically connected through metal vias to the second intermediate transmission line disposed on a second signal plane. The first transmission line has one end as the first port and an opposite end as an open circuit. The Balun includes a second transmission line disposed on the first signal plane and is adjacent to the first intermediate transmission line. The second transmission line has one end as the second port and an opposite end grounded. The Balun includes a third transmission line disposed on the second signal plane and adjacent to the second intermediate transmission line. The third transmission line has one end as the third port and an opposite end grounded.

Abstract: Provided are a method of preparing a stem cell-derived epidermal progenitor cell conditioned medium, the method including: differentiating stem cells to stem cell-derived epidermal progenitor cells by culturing the stem cells in a differentiation medium containing ascorbic acid and hydrocortisone; producing a culture of stem cell-derived epidermal progenitor cells by culturing the differentiated stem cell-derived epidermal progenitor cells in a medium; and recovering the stem cell-derived epidermal progenitor cell conditioned medium from the culture of the stem cell-derived epidermal progenitor cells, a stem cell-derived epidermal progenitor cell conditioned medium prepared by the method, and a method of producing a protein from stem cell-derived epidermal progenitor cells, the method including the method of preparing the stem cell-derived epidermal progenitor cell conditioned medium.

Abstract: A method of removing fluoride ion from waste liquid is provided, which includes providing a calcium source and a plurality of ceramic particles to a waste liquid containing fluoride ion for forming a plurality of calcium fluoride layers wrapping the ceramic particles. The calcium fluoride layers are connected to form a calcium fluoride bulk. The ceramic particles are embedded in the calcium fluoride bulk. The ceramic particles and the calcium fluoride bulk have a weight ratio of 1:4 to 1:20.