Abstract: Provided are a biodegradable aliphatic-aromatic polyester copolymer having excellent hydrolysis resistance and high viscosity which has a carboxyl end group (CEG) content of 15 mg KOH/g or less, a ratio (Mz/Mn) of a z-average molecular weight (Mz) to a number average molecular weight (Mn) of 3 to 15, and a melt index (MI) of 5 g/10 min or less as measured under conditions of a temperature of 190° C. and a load of 2.16 kg in accordance with ASTM D 1238. A method of preparing a biodegradable aliphatic-aromatic polyester copolymer is provided, including adding a chain extender and an anti-hydrolysis agent to an aliphatic-aromatic polyester pre-copolymer over time, whereby a significant viscosity rise and improvement of hydrolysis resistance may be implemented simultaneously.

Abstract: The present disclosure relates to a method for preparing a porous carbon material including: (1) a step of centrifugally milling a porous carbon material; and (2) a step of filtering the centrifugally milled porous carbon material through a sieve, wherein a mesh size of the sieve is 2.8 to 4 times of a D50 particle size of the porous carbon material filtered through the sieve in the step (2). The present disclosure also relates to a porous carbon material prepared by the above-described method, a sulfur-carbon composite and a lithium-sulfur battery including the porous carbon material prepared by the above-described method.

Abstract: The present disclosure relates to a positive electrode active material for a lithium-sulfur battery, and the positive electrode active material of the present disclosure includes a sulfur-carbon composite, wherein the sulfur-carbon composite includes a porous carbon material and a sulfur-based material disposed on at least a portion of an inside of pores and a surface of the porous carbon material, wherein the sulfur-based material includes at least one of sulfur (S8) or a sulfur compound, and wherein the porous carbon material satisfies one or more of the following conditions: (1) a sum of particle size D10 and particle size D90 is 60 ?m or less; and (2) a broadness factor (BF) satisfying Equation 1 is 7 or less: Broadness factor (BF)=(particle size D90 of the porous carbon material)/(particle size D10 of the porous carbon material)??[Equation 1].

Abstract: An embodiment primer coating composition includes 20 to 25 wt % of a chlorinated polyolefin (CPO) resin having a weight-average molecular weight (Mw) of 50,000 to 100,000 g/mol, 2 to 4 wt % of a modified polyester, and 75 to 85 wt % of a hydrocarbon-based solvent. An embodiment coated automotive article includes a printing layer on a base layer, the printing layer including a laser pattern, a primer layer on the printing layer, the primer layer including a primer coating composition including 20 to 25 wt % of a chlorinated polyolefin (CPO) resin having a weight-average molecular weight (Mw) of 50,000 to 100,000 g/mol, 2 to 4 wt % of a modified polyester, and 75 to 85 wt % of a hydrocarbon-based solvent, and a clear layer on the primer layer.

Abstract: A positive electrode according to the present disclosure includes a current collector; and a positive electrode active material layer on at least one surface of the current collector, wherein the positive electrode active material layer comprises a sulfur-carbon composite and a binder polymer, wherein the sulfur-carbon composite comprises a porous carbon material and a sulfur-based material disposed on at least a portion of an inside of pores and a surface of the porous carbon material, and wherein a ratio of a thickness of the positive electrode (?m) to an amount of carbon per a unit area (1 cm×1 cm) in the positive electrode active material layer (mg) is 80 to 130 (?m/mg).

Abstract: An apparatus and a method for inspecting navigation safety facilities by using a flight vehicle are disclosed. The method for inspecting navigation safety facilities by using a flight vehicle comprises the steps of: defining a three-dimensional flight path for a flight vehicle so that same passes through navigational safety facilities; receiving a navigation signal value from the navigation safety facilities and GPS data of the flight vehicle, the navigation signal value and the GPS data being measured by the flight vehicle automatically flying along the defined three-dimensional flight path; analyzing the navigation signal value so as to estimate the distance and the angle of the flight vehicle viewed from the navigation safety facilities; and inspecting the navigation safety facilities according to whether the coordinates of the flight vehicle identified by the GPS data are included in an area formed by the distance and the angle.

Abstract: Provided are a biodegradable aliphatic-aromatic polyester copolymer having excellent hydrolysis resistance and high viscosity which has a carboxyl end group (CEG) content of 15 mg KOH/g or less, a ratio (Mz/Mn) of a z-average molecular weight (Mz) to a number average molecular weight (Mn) of 3 to 15, and a melt index (MI) of 5 g/10 min or less as measured under conditions of a temperature of 190° C. and a load of 2.16 kg in accordance with ASTM D 1238. A method of preparing a biodegradable aliphatic-aromatic polyester copolymer is provided, including adding a chain extender and an anti-hydrolysis agent to an aliphatic-aromatic polyester pre-copolymer over time, whereby a significant viscosity rise and improvement of hydrolysis resistance may be implemented simultaneously.

Abstract: A method of operating a network switch for collective communication includes: receiving, via a network from external electronic devices, a first and second matrix each formatted according to a sparse matrix storage format; and generating a third matrix formatted according to the sparse matrix storage format, wherein the third matrix is generated by combining the first and second matrix according to the sparse matrix storage format, wherein, according to the sparse matrix storage format the first matrix includes first matrix positions of respective first element values and the second matrix includes second matrix positions of respective second element values, and wherein the combining includes comparing the first matrix positions with the second matrix positions.

Abstract: A power system for an electrified vehicle comprising a first power source device, a first converter having a first end connected to the first power source device, a second power source device, a motor driving device comprising a motor and an inverter, a switch device configured to selectively connect a second end of the first converter to the second power source device or the motor driving device, and a controller configured to control the switch device such that the second end of the first converter is connected to the second power source device when the first power source device is charged with power of the second power source device and such that the second end of the first converter is connected to the motor driving device when the motor performs regenerative braking.

Abstract: A driving circuit includes: a display driver to generate a horizontal synchronization signal and a vertical synchronization signal according to a first clock signal of a first oscillator; a sensor driver to generate a touch signal according to a second clock signal of a second oscillator; and a determination circuit to detect a cycle of at least one of the horizontal synchronization signal or the vertical synchronization signal according to the second clock signal, and output a detection signal when the cycle is out of a range. The determination circuit is a part of the display driver or the sensor driver.

Abstract: The present invention relates to a composition for preventing or treating transplantation rejection or a transplantation rejection disease, comprising a novel compound and a calcineurin inhibitor. A co-administration of the present invention 1) reduces the activity of pathogenic Th1 cells or Th17 cells, 2) increases the activity of Treg cells, 3) has an inhibitory effect against side effects, such as tissue damage, occurring in the sole administration thereof, 4) inhibits various pathogenic pathways, 5) inhibits the cell death of inflammatory cells, and 6) increases the activity of mitochondria, in an in vivo or in vitro allogenic model, a transplantation rejection disease model, a skin transplantation model, and a liver-transplanted patient, and thus inhibits transplantation rejection along with mitigating side effects possibly occurring in the administration of a conventional immunosuppressant alone.

Abstract: An integrated circuit includes a first standard cell including a first first-type transistor, a first second-type transistor, a third second-type transistor, and a third first-type transistor, a second standard cell including a second first-type transistor, a second second-type transistor, a fourth second-type transistor and a fourth first-type transistor, a plurality of wiring layers which are disposed on the first and second standard cells and includes a first wiring layer, a second wiring layer, and a third wiring layer sequentially stacked. A source contact of the first first-type transistor and a source contact of the second first-type transistor are electrically connected through a first power rail of the plurality of wiring layers, and a source contact of the third first-type transistor and a source contact of the fourth first-type transistor are electrically connected through a second power rail of the plurality of wiring layers.

Abstract: A solid electrolyte, including sulfide-based solid electrolyte particles and a coating layer disposed on the surface of the sulfide-based solid electrolyte particles and including a metal alkoxide.

Abstract: A battery assembly includes a battery module stack in which at least one battery module is stacked and formed, a cover portion coupled to a side of the battery module stack, and a substrate portion coupled to an external surface of the cover portion, wherein the cover portion includes a cover member coupled to the battery module stack, and a protrusion member protruding in an outward direction from the cover member and in contact with an internal surface of the substrate portion, the substrate portion includes an overlapping region which is a region overlapping the protrusion member when viewed in the outward direction, a through-hole passing through the overlapping region in the outward direction is formed in the overlapping region, and a pad region having electrically conductive properties is formed in a region surrounding the through-hole in the substrate portion.

Abstract: An automated driving system of a vehicle includes a driver monitoring unit configured to perform at least one of monitoring a gaze of a driver and determining a position of a hand of the driver, an automated-driving-level switching unit configured to determine whether a transition of a driving control over the vehicle is required based on whether driving environment of the vehicle has changed during the vehicle being driven under control of the automated driving system, and determine an automated driving level to be switched based on a driver monitoring result obtained by the drive monitoring unit, and an automated driving control unit configured to control the vehicle according to the automated driving level.

Abstract: Provided is a Raman scattering measurement apparatus including a light source which emits light to smoke particles, a filter configured to block light which is incident to the smoke particles and passes through the particle and to allow Raman scattered light to pass therethrough, and a photodetector which detects the Raman scattered light passing through the filter in order to distinguish fire smoke generated due to a true fire from non-fire smoke generated due to daily life or industrial activity. The present invention also provides a fire determination apparatus including a unit which reads a Raman shift from Raman scattered light detected by the photodetector of the Raman scattering measurement apparatus, estimates a smoke component from the read Raman shift, and determines fire/non-fire from the estimated smoke component and a method thereof.

Abstract: Photonically steered impedance surface antennas are disclosed. A disclosed example apparatus includes a semiconductor substrate to be communicatively coupled to a radio frequency (RF) source, an at least partially transparent dielectric layer, the semiconductor substrate at a first side of the at least partially transparent dielectric layer, an at least partially transparent conductive film at a second side of the at least partially transparent dielectric layer that is opposite the first side of the at least partially transparent dielectric layer, and an illumination source to illuminate at least a portion of the semiconductor substrate to generate a photoinduced solid-state plasma pattern that beam steers an RF signal corresponding to the RF source.

Abstract: A semiconductor memory device includes a first stacked structure, a first supporter layer, a second stacked structure, a block cut structure, and a second supporter layer on the second stacked structure and separated by a second cut pattern. The first stacked structure includes a first and second stack, the second stacked structure includes a third stack separated by the block cut structure and a fourth stack, the first supporter layer is on the first stack and the second stack, the second supporter layer is on the third stack and the fourth stack, the first cut pattern includes a first connection on the block cut structure and connecting the first supporter layer and the second stack, and the second cut pattern of the second supporter layer includes a second connection on the block cut structure and connecting the second supporter layer placed on the third stack and the fourth stack.

Abstract: A package-to-package communication system is provided including a first package having integrated on a first substrate a first antenna, a second antenna, and a first transceiver coupled to the first antenna and the second antenna. The first antenna is arranged along a first edge of the first substrate. The second antenna is arranged along a second edge of the first substrate. A second package having integrated on a second substrate a third antenna, a fourth antenna and a second transceiver coupled to the third antenna and the fourth antenna. The third antenna is arranged along a third edge of the second substrate. The fourth antenna is arranged along a fourth edge of the second substrate. The first antenna and the third antenna are configured to communicate signals of a vertical polarization. The second antenna and the fourth antenna are configured to communicate signals of a horizontal polarization.

Abstract: The present disclosure relates to a high-entropy alloy and a manufacturing method therefor, and in particular, a high-entropy alloy and a manufacturing method therefor that comprises a multi-element alloy matrix and Cu, and comprises an alloy having a face-centered cubic (FCC)-based phase, such that the high-entropy alloy may have greater hardness and strength than an existing transition metal alloy while maintaining a FCC-based single phase, and has high lubricity.