Abstract: There is provided a ferritic lightweight steel which contains 2.0 to 3.0 wt % manganese (Mn), 5.0 to 6.0 wt % aluminum (Al) and 0.1 to 0.3 wt % carbon (C) and has a tensile strength of 900 MPa to 1,108 MPa. The lightweight steel includes ferrite-austenite dual grains as a result of performing low-temperature tempering-induced partitioning (LTP) at 300° C. for 10 minutes after isothermal annealing.

Abstract: The present invention relates to a supercapacitor electrode material, and a method for manufacturing same. One aspect of the present invention provides a supercapacitor electrode material including: a carbon material; and phosphorus (p) and boron (b) doped into the carbon material.

Abstract: A compound is represented by Formula 1 below: wherein R1 to R4 are each independently a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a fluoro-substituted alkyl group having 1 to 6 carbon atoms, or a fluorine atom, wherein at least one among R1 to R4 is a fluorine atom, A is a divalent linking group, M1 and M2 are each independently potassium or sodium, and n and m are each independently an integer of 1 to 10.

Abstract: A method for producing isoprene includes culturing E. coli, which has isoprene productivity and in which a gene encoding a recA protein is attenuated or deleted, in a medium containing a carbon source. Therefore, a great amount of isoprene may be produced within a short period of time, and thereby considerably decreasing isoprene production unit costs.

Abstract: Embodiments provide a heterocyclic compound, a light-emitting device that includes the heterocyclic compound, and an electronic apparatus that includes the light-emitting device. The light-emitting device includes a first electrode, a second electrode facing the first electrode, an interlayer between the first electrode and the second electrode and including an emission layer, and at least one of the heterocyclic compound.

Abstract: The present invention relates to a method for preparation of soybean leaves having a high content of an isoflavone derivative in a dark condition and soybean leaves having a high content of an isoflavone derivative prepared thereby. Specifically, treatment of a soybean plant 20 days to 60 days after seeding with a predetermined concentration of ethylene in a dark condition was found to accumulate higher concentrations of isoflavone derivatives in soybean leaves than treatment with ethephon in a light condition, which requires a high level of energy. Therefore, when used, the method of the present invention can economically and quickly prepare soybean leaves having a very high content of isoflavones, and the soybean leaves having a high content of isoflavone derivatives, an extract of the soybean leaves, and a fraction of the extract can be advantageously used as a food and medicine material against diseases caused by estrogen unbalance and deficient antioxidant activity.

Abstract: A marker composition for selecting a living modified organism allows transformation and the production of a target product without antibiotics or antibiotic resistance genes. The marker composition for selecting a living modified organism may basically prevent problems caused by the use of antibiotics and antibiotic resistance genes and produce a target product at a high yield.

Abstract: A fusion tag according to an embodiment of the present invention may increase the water solubility and expression level of a target protein. As the water solubility and expression level of a target protein in host cell can be increased by a recombinant vector including the fusion tag, the fusion tag can be advantageously used in industry.

Abstract: A method for increasing the efficiency of homologous recombination-based gene editing in a plant according to an embodiment of the present invention includes optimizing temperature and photoperiod conditions during tissue culture of plant cells, expressing factors required for homology-directed DNA repair (HDR) and factors for increasing the HDR efficiency by using a multiple replicon, or regulating the HDR pathway or non-homologous end joining (NHEJ) pathway.

Abstract: The present invention relates to a slow-releasing fertilizer composition and a composition for increasing plant growth and plant tolerance to salt stress which comprise, as an effective ingredient, hydroxyapatite or in mixture with a tricalcium phosphate obtained from chemical synthesis or thermal treatment of bones, coated with humic acid or a polymer of monomeric phenol.

Abstract: The present invention relates to a pharmaceutical composition including vitrified periodontal tissue-derived mesenchymal stem cells for prevention or treatment of male infertility. The pharmaceutical composition for prevention or treatment of male infertility according to the present invention recovers sex hormone levels in seminiferous tubules of atrophic testes and blood to normal levels through improvement in the activity of lipid metabolism enzymes in the liver, thereby exhibiting remarkable prophylactic and therapeutic effects on male infertility. In addition, the periodontal tissue-derived mesenchymal stem cells which are an active ingredient in the present invention can be obtained in the most non-invasive manner and as such, are expected to be advantageously used as a cell therapy product for male infertility.

Abstract: Provided are a heterocyclic compound represented by Formula 1 below, and an organic electroluminescence device including the same in an emission layer. In Formula 1, X is a direct linkage or CR2R3, Z1 to Z8 are each independently CR4 or N, at least two of Z1, Z3, Z6 and Z8 are each independently CR5, and R5 is represented by Formula 2 or Formula 3 below.

Abstract: The composition for predicting Alzheimer's disease prognosis comprising a detection reagent that specifically binds to any one or more genes selected from the group consisting of (Nitric oxide synthase 1), Aph1B (Anterior pharynx defective 1 homolog B), Ryr3 (Ryanodine receptor 3), Atf6 (Activating transcriptional factor 6), Ip3r (Inositol trisphosphate receptor), Nep (Neprilysin), Cdk5 (cyclin dependent kinase 5) and Abad (Amyloid beta-binding alcohol dehydrogenase), a kit, and a method for providing information on Alzheimer's disease prognosis of the present invention can rapidly and accurately predict the prognosis of Alzheimer's disease, and can determine the prognosis for a drug by comparing the expression level before and after drug administration, so that an appropriate treatment direction can be determined according to the predicted prognosis. Therefore, they have an effect that can greatly contribute to the reduction of mortality due to Alzheimer's disease.

Abstract: The present disclosure to an electrolyte membrane containing a polyfluorene-based ionomer, and more particularly, to an electrolyte membrane containing a polyfluorene-based ionomer which has a fluorene main chain composed of only a carbon-carbon bond and a side chain composed of a perfluorosulfonic acid group. The electrolyte membrane containing the polyfluorene-based ionomer has high proton conductivity, excellent chemical durability, excellent mechanical property, and excellent volume stability.

Abstract: A heterocyclic compound and an organic light-emitting device including the same are provided. The heterocyclic compound may be represented by Formula 1. The substituents and variables of Formula 1 may be as defined in the present disclosure. The organic light-emitting device including the heterocyclic compound represented by Formula 1 may have a low driving voltage, high current density, and high efficiency.

Abstract: Disclosed is an anti-buckling jig of a fracture toughness test. The anti-buckling jig includes: a first jig unit provided in a form of surrounding one side surface of a specimen; a second jig unit provided in a form of surrounding the other side surface of the specimen; and a screw provided to allow the first jig unit and the second jig unit to be coupled to each other. During the fracture toughness test of the specimen, the first jig unit and the second jig unit simultaneously support both sides of the specimen, so that the specimen is cracked in a single direction.

Abstract: A fusion tag according to an embodiment of the present invention may increase the water solubility and expression level of a target protein. As the water solubility and expression level of a target protein in host cell can be increased by a recombinant vector including the fusion tag, the fusion tag can be advantageously used in industry.

Abstract: The present invention relates to an antibacterial or plant disease control composition containing caryolan-1-ol. According to the present invention, the caryolan-1-ol, as a volatile substance isolated from a Streptomyces sp. strain, has an excellent antifungal effect on various plant pathogens including Botrytis cinerea, Fusarium oxysporum, Phytophthora nicotinae, Colletotrichum gloeosporioides, Rhizoctonia cerealis, Rhizoctonia solani and Gibberella moniliformis and the like, and has storage disease preventive and herbicidal activity, thereby being usable as an antibacterial composition and a plant disease control composition.

Abstract: The present invention relates to a structure for fastening composite structures, and more particularly, to a sewing machine for stitching composite materials which is capable of automatically and continuously stitching the composite structures by using a high-rigidity fiber in order to laminate and join the composite materials. The sewing machine for stitching composite materials according to the present invention automatically and continuously performs a stitching operation for joining composite materials by using a high-rigidity composite fiber for joining the composite materials, and as a result, it is possible to reduce process time for joining the composite materials and improve productivity.

Abstract: An antiaromatic compound and an organic light-emitting device including the same.