Abstract: A hot-stamped part according to an embodiment of the present invention comprises, as a base layer, a steel comprising: 0.28-0.38 wt % of carbon (C); 0.1-0.4 wt % of silicon (Si); 1.2-2.0 wt % of manganese (Mn); from greater than 0 to 0.020 wt % of phosphorus (P); from greater than 0 to 0.003 wt % of sulfur (S); 0.1-0.5 wt % of chromium (Cr); 0.0015-0.0040 wt % of boron (B); 0.025-0.05 wt % of titanium (Ti); and the remainder of iron (Fe) and inevitable impurities, wherein the microstructure of the base layer is full martensite.

Abstract: The present specification provides a multi-layer liquid crystal film including: a substrate; a first alignment film provided on the substrate; a first liquid crystal film provided on the first alignment film; a second alignment film provided on the first liquid crystal film and comprising a multifunctional acrylate; and a second liquid crystal film provided on the second alignment film, and a method for manufacturing a polarizing plate, including: laminating the multi-layer liquid crystal film to a polarizer, and peeling off the substrate.

Abstract: The present disclosure relates to an optical laminate or a reddening-resistant layer. The present disclosure can provide an optical laminate that does not cause a so-called reddening phenomenon even when driven or maintained under extremely harsh conditions (e.g., very high temperature conditions), or a reddening-resistant layer applied thereto.

Abstract: The present invention relates to pyranochromenylphenol derivatives having different efficacies depending on the direction of optical activity and a pharmaceutical composition including the same, and in the pyranochromenylphenol derivatives, an R-enantiomer has excellent anti-diabetic efficacy by suppressing a rise in blood sugar and an S-enantiomer has excellent anti-obesity efficacy by suppressing an increase in body weight.

Abstract: Disclosed is a composition, which comprises Hordeum vulgare extract as an active ingredient and is effective at promoting longitudinal bone growth.

Abstract: The present specification relates to a method for manufacturing a polarizer and a polarizer manufactured by using the same, and more particularly, to a method for manufacturing a polarizer, which includes a cross-linking and elongating step using an aqueous solution including a polyvalent carboxylic acid compound and a boric acid compound, and a polarizer manufactured by using the same.

Abstract: The present invention provides a preparation for attaching to teeth or tooth peripheries, which comprises a malleable oral composition and an active ingredient for intra-oral delivery. Further, the present invention provides a preparation for attaching to teeth or tooth peripheries, which comprises an oral composition in a hardening ointment-phase and an active ingredient for intra-oral delivery. The preparation of the present invention may give high adhesive force to the desired site in spite of gaps between teeth or curves of teeth. The preparation of the present invention having high adhesive force increases the time of adhesion to a target site in the oral cavity, and thus may be advantageous in achieving an intended effect.

Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.

Abstract: Disclosed is a gear including a resettable metallic glass. The gear of the present disclosure includes, as a base material, a resettable metallic glass, wherein the resettable metallic glass includes at least one metal element selected from each of (a) the group consisting of Ti, Zr, and Hf and (b) the group consisting of Fe, Co, Ni, Cu, and Zn, and further includes at least one metal element to maximize the complexity in the thermodynamic enthalpy of mixing among constituent elements, thereby including multiple resetting cores in various atomic-scale cluster forms in an amorphous matrix, leading to a structure with maximized structural complexity.

Abstract: The present disclosure relates to a cathode active material, a method of preparing the same, and a lithium secondary battery including a cathode including the cathode active material, the cathode active material including: a transition metal (M) other than a Co element, includes at least one element of W, Mg and Ti, and further includes an S element, a preparation method thereof, and a lithium secondary battery including a cathode including the cathode active material.

Abstract: Disclosed are a resettable metallic glass and a manufacturing method therefor. The resettable metallic glass may include: (1) an element group TM consisting of group IV transition elements; (2) an element group E having a negative (?) enthalpy of mixing with group IV transition elements and including a eutectic reaction of a large temperature difference; (3) an element group PN having a positive (+) enthalpy of mixing with the element group TM and a negative (?) enthalpy of mixing with the element group E to form both a TM-E cluster resetting core and an E-PN cluster resetting core or, on the contrary, an element group NP having a negative (?) enthalpy of mixing with the element group TM and a positive (+) enthalpy of mixing with the element group E to form both a TM-E cluster resetting core and a TM-NP cluster resetting core.

Abstract: A semiconductor device is provided. The semiconductor device includes a first substrate, an active region defined by an isolation film in the first substrate, an oxide semiconductor layer on the first substrate in the active region, and not comprising silicon, a recess inside the oxide semiconductor layer, and a gate structure filling the recess, comprising a gate electrode and a capping film on the gate electrode, and having an upper surface on a same plane as an upper surface of the active region.

Abstract: The present disclosure relates to a fuel cell hot box for improving the system efficiency of a fuel cell, wherein all of a fuel cell stack part, an afterburner, a reformer, and an air-heat exchange unit are provided inside a main chamber, fuel may be reformed and preheated using heat of the fuel cell stack part and heat of combustion gas generated by the afterburner, and at the same time, air may be also preheated. Thus, wasting energy can be prevented, the lifetime of the entire system can be increased by cooling the fuel cell stack part and increasing the durability of the fuel cell stack part against thermal stress, and a plurality of fuel cell stack parts share the center chamber, thereby simplifying a configuration of the fuel cell hot box.

Abstract: A method of applying uniform pressure to an all-solid-state battery during activation of the battery and preventing an interface contact surface from being separated as the result of gas generated in the all-solid-state battery is provided. This method increases the lifespan of the battery and an all-solid-state battery manufactured using the same method.

Abstract: A light emitting diode comprises first and second electrodes facing each other; a first charge generation layer between the first and second electrodes; a first emitting stack including a first emitting material layer between the first electrode and the first charge generation layer and a first electron transporting layer between the first emitting material layer and the first charge generation layer; and a second emitting stack including a second emitting material layer between the first charge generation layer and the second electrode and a second electron transporting layer between the second emitting material layer and the second electrode, wherein the first charge generation layer has an electron mobility lower than that of the first electron transporting layer.

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: Provided is a cell culture sheet for a large-capacity incubator. A cell culture sheet according to one embodiment of the present invention is a cell culture sheet provided in a large-capacity incubator having a plurality of sheets disposed to be spaced apart at predetermined intervals therein, wherein the cell culture sheet has an area of 100 cm2 or more and a bending depth of 0.5 cm or less. As such, even when the culture sheets are closely placed in a limited volume of space, there is little sagging or shape deformation in a specific direction to prevent the occurrence of contact with adjacent culture sheets, thereby preventing a decrease in cell culture volume due to a dead space. Furthermore, since the flow of a cell culture fluid due to the occurrence of contact can be minimized or prevented, a large capacity of cells can be stably and smoothly cultivated such that the cell culture sheet is very suitable for a large-capacity incubator and can be widely applied to the cell culture industry.

Abstract: A fuel cell hot box for improving the system efficiency of a fuel cell. Fuel cell stack parts, an after burner, a reformer, an air pre-heating zone, and a fuel-heat exchanger are provided in a housing allowing heat of the fuel cell stack parts and heat of combustion gas generated in the after burner to be used for reforming, preheating fuel and preheating air at the same time to avoid wasting energy. The fuel cell stack parts under thermal stress can be cooled to improve durability of the stack parts to increase a lifetime of a total system, and the stack parts can share the central chamber part to simplify a structure of the fuel cell hot box. In addition, the reformer includes an opening and closing unit to properly distribute the high-temperature combustion gas so that a reforming ratio is adjustable according to an operating condition of the fuel.

Abstract: The present disclosure provides a cobalt-based alloy having self-healing property. The cobalt-based alloy has composition as below: [[CoaTibCr100-a-b]1-0.01cSc]1-0.01dHd (57?a?92.5 at. %, 6?b?33 at. %, a+b<100, S means strengthening solute elements, 0<c?20 at. %, H means healing solute elements, and 0<d?2 at. %), wherein self-healing function is implemented by the healing solute elements.

Abstract: The present invention may provide an asymmetric hydrogenation catalyst capable of resolving enantiomers with excellent enantioselectivity from a carbon-carbon double bond-containing compound. The catalyst according to one embodiment of the present invention includes: an iridium cation; and a ligand bonded to the iridium cation.