Abstract: Provided are a methane-selective composite membrane comprising: a UiO-66 type organic-inorganic composite nanoporous material, a MIL-100 type organic-inorganic composite nanoporous material, or a ZIF-8 type organic-inorganic composite nanoporous material to which a methane-selective functional group is introduced for selectively separating methane from a gas mixture containing methane/nitrogen, a use thereof, and a method of preparing the same.

Abstract: The present invention relates to a composition for the prevention, amelioration, or treatment of urination-related disases, comprising cephalotocin. The cephalotocin according to the present invention modulates oxytocin receptors and vasopressin receptors, and has the effect of reducing urine volume by promoting water reabsorption in the kidneys. This means that cephalotocin has a significant antidiuretic effect, and thus, the cephalotocin of the present invention can be variously used in the field of prevention, amelioration, or treatment of urinary disorders or urination-related diseases.

Abstract: The present invention relates to a catalyst for preparing a light olefin, a preparation method therefor, and a method for preparing a light olefin by using same, and can provide a catalyst for preparing a light olefin, a preparation method therefor, and a method for preparing a light olefin by using same, the catalyst comprising a porous zeolite, a clay, an inorganic oxide binder, and Ag2O and P2O5 which are supported in the pores and/or on the surface of the porous zeolite.

Abstract: A catalyst regenerator for regenerating a coked catalyst produced along with a olefin by mixing naphtha and a catalyst with each other to cause a naphtha cracking reaction, and falling from a cyclone which separates the coked catalyst and the olefin produced from the naphtha cracking reaction, includes: a vessel accommodating a catalyst layer formed by stacking the catalyst; a partial oxidation burner producing a high-temperature gas containing solid carbon; and supply nozzles connected to the partial oxidation burner, installed on a bottom of the vessel toward the falling catalyst and the catalyst layer, and spraying the high-temperature gas containing the solid carbon to the catalyst and the catalyst layer.

Abstract: Provided are a composition for detecting SARS coronavirus 2, a composition for diagnosing SARS coronavirus 2 infection, a method for detecting SARS coronavirus 2, and a SARS coronavirus 2 infection diagnostic kit, wherein a receptor and an antibody that binds to SARS coronavirus 2 spike protein are used in order to detect SARS coronavirus 2 (SARS-CoV-2) or diagnose SARS coronavirus 2 infection (COVID-19).

Abstract: Disclosed are a holographic writing method and apparatus capable of re-writing (updating) holographic information and quickly writing the holographic information with high efficiency. In an embodiment, a holographic writing method for writing holographic information by emitting a beam at a holographic recording medium containing a photo-responsable polymer material having photoisomerization characteristics that change a molecular structure thereof by absorbing light energy, writes the holographic information by using a writing wavelength different from a maximum absorption wavelength in a light absorption spectrum of photoisomer molecule structures of the holographic recording medium. The maximum absorption wavelength is a wavelength at which light absorption rate is maximum in the light absorption spectrum.

Abstract: The present disclosure relates to a method for extracting chitin nanocrystals through electron beam irradiation comprising the steps of: (i) irradiating a chitin-based solid material with an electron beam; (ii) washing the chitin-based solid material subjected to electron beam irradiation; (iii) adding a basic solution to the washed chitin-based solid material; (iv) high-pressure homogenizing the chitin-based solid material dispersed in an aqueous system to which the basic solution is added, to prepare a suspension containing chitin nanocrystals.

Abstract: The present disclosure is to provide a catalyst for olefin production which is eco-friendly and has excellent conversion rates and selectivity and a preparation method thereof, and the catalyst for olefin production according to the present disclosure is one in which cobalt and zinc are supported with alumina. Particularly, the catalyst according to the present disclosure uses an amount of platinum that is about 400 times smaller than that of the conventional catalysts, and has high conversion rates and selectivity under conditions in which continuous reaction-regeneration process is possible without an additional hydrogen reduction process.

Abstract: Provided are a bacterial nanocellulose transparent film, a manufacturing method thereof, and a packaging material including a food packaging material or an electronic product packaging material using the same capable of newly manufacturing a bacterial nanocellulose transparent film with an oxygen barrier property, a moisture barrier property, or a UV barrier property by performing electron beam irradiation and a film process on bacterial cellulose.

Abstract: The present invention relates to a composition for detecting nucleic acid comprising duplex molecular beacon and graphene oxide and a colorimetric signal enhancement method of detecting nucleic acid using the same. According to the composition, kit and method for detecting nucleic acid of the present invention, a complex can be formed by adsorbing a single strand having a DNAzyme sequence dissociated from the conjugate of a duplex molecular beacon and a target nucleic acid to the graphene oxide surface, and separated, and a colorimetric signal amplified therefrom can be induced, so that a very low concentration of target nucleic acid can be detected with high efficiency and the target nucleic acid can be detected quickly and easily in seconds. Therefore, a new colorimetric target nucleic acid detection system capable of point of care testing (POCT) can be provided.

Abstract: The present disclosure relates to a carbazole-based anion exchange material, a preparation method therefor and use thereof, and more particularly, to an anion exchange material used in membranes for water electrolysis, redox flow batteries, fuel cells, carbon dioxide reduction, electrochemical ammonia production and decomposition, electrodialysis (ED), reverse electrodialysis (RED) or capacitive deionization (CDI), a separator comprising the same, a preparation method therefor and use thereof. According to the present disclosure, it is possible to prepare a separation membrane with improved mechanical and chemical stability and durability by remarkably improving the molecular weight together with solubility in solvent by providing the anion exchange material in which all bonds between monomers in the main chain are C—C bonds based on the carbazole-based material with high stability.

Abstract: According to an embodiment of the present invention, provided is a process for polymerizing molecular weight—adjustable polymer, comprising: a reactant supply step of supplying a gaseous monomer, a surfactant, and an initiator; a polymerization reaction step of performing a polymerization reaction in which the monomer, the surfactant, and the initiator participate; and a product discharging step of discharging the polymer compound produced by the polymerization reaction, wherein the flow rate of the supplied initiator is inversely proportional to the molecular weight of the polymer compound, and the molecular weight of the polymer compound produced by the polymerization reaction is adjusted by controlling the flow rate of the initiator.

Abstract: The present invention relates to a fatty liver and liver fibrosis evaluation system based on impedance. The fatty liver and liver fibrosis evaluation system based on impedance provided in one aspect of the present invention uses 3-dimensional liver microtissues so that the fatty liver formation and the stiffness changes resulted from liver fibrosis induced by a test drug can be analyzed with non-invasive and highly reproducible manner.

Abstract: Proposed is a catalyst complex having high activity for carbon dioxide conversion reaction that converts carbon dioxide to useful compounds through reaction of carbon dioxide and hydrocarbon containing at least one hydroxyl group, and a carbon dioxide conversion process using the same, wherein the catalyst complex includes, as an active metal in the catalyst complex, at least one of noble metals and at least one of transition metals other than noble metals, thereby having high activity for the carbon dioxide conversion reaction.

Abstract: Proposed is a high-yield simultaneous conversion method for a hydrogen source and a carbon dioxide source. The method significantly increases a yield of a formate through conversion of carbon dioxide. To this end, a carbon dioxide source and a hydrocarbon containing one or more hydroxy groups undergo a simultaneous conversion reaction in the presence of a solvent containing one or more alcohols and having a pH of 10 to 14.

Abstract: The present disclosure provides a preparing method for 5-alkoxymethylfurfural, including steps of (a) preparing fructose, (b) mixing the fructose, an organic acid catalyst, and an organic solvent, thereby preparing mixing solution, and (c) heating the mixing solution, thereby preparing 5-alkoxymethylfurfural. Therefore, 5-alkoxymethylfurfural may be effectively prepared without by-products from fructose.

Abstract: The present invention provides a thiophene carboxamide compound of the following General Formula (I), which is a novel fluorine-substituted biphenyl carboxamide-based compound, and provides a useful compound, as an agricultural and horticultural plant disease control agent, exhibiting an excellent control effect at a low dose. wherein, R, R1, R2, R3, Xm, and Y are each as defined in the specification.

Abstract: The present invention relates to a method of directly preparing a dicarbamate compound from a diamine compound, and more particularly to a method of directly preparing a dicarbamate compound by reacting a diamine compound with an alcohol compound in the presence of a mixed gas of carbon monoxide (CO) and oxygen (O2) using a Pd/MOx catalyst configured such that a palladium (Pd) active metal is supported on a metal oxide or metalloid oxide carrier.

Abstract: Proposed is a two-pot-two-step simultaneous conversion system for carbon dioxide and a hydrocarbon containing at least one hydroxy group and a method thereof. The system integrates a process of producing a metal salt that is a dehydrogenated form of the hydrocarbon, hydrogen, and water by reacting a hydrocarbon containing at least one hydroxy group in the presence of water and a metal oxalate, and a process of converting carbon dioxide or carbon dioxide-derived carbonate into formate by hydrogenation, thereby increasing energy efficiency while maintaining a higher hydrocarbon conversion rate and a higher carbon dioxide conversion rate than the one-pot conversion system for hydrocarbon and carbon dioxide.

Abstract: Pyrrolidine carboxamido derivatives, optical isomers thereof, and salts thereof that are able to prevent, improve, and/or treat inflammatory conditions, including inflammatory bowel disease, and methods for preparing and using the same are provided.