Abstract: Disclosed is a method for eliminating odors including administering a deodorant composition containing an Opuntia ficus (prickly pear) extract or a fraction thereof as an active ingredient. The deodorant composition, which further contains a persimmon extract or a fraction thereof, a persimmon juice, or a green tea extract or a fraction thereof, is useful as a deodorizer for removing or reducing ammonia and trimethylamine.

Abstract: Disclosed is a hydrogen production and storage system using solar energy which converts solar energy into electric energy through a solar panel, operates a water electrolysis reactor using the electric energy to produce hydrogen, and stores the hydrogen at a high pressure in a hydrogen storage tank through a water tank, a pressure control valve, etc.

Abstract: The present invention relates to a Myoviridae bacteriophage Esc-COP-14 (Accession number: KCTC 13528BP) isolated from nature, and characterized by having the ability to specifically kill Escherichia coli and having the genome represented by SEQ. ID. NO: 1, and to a method for preventing and treating the infection of pathogenic Escherichia coli using the composition comprising Myoviridae bacteriophage Esc-COP-14 as an active ingredient.

Abstract: The present invention relates to a composition and a method for inducing CD4+ T cells to differentiate into regulatory T cells and proliferate through an induced T cell co-stimulator ligand (ICOSL) or an ICOSL-overexpressing mesenchymal stem cell and for preventing or treating regulatory T cell-mediated diseases. The induced T cell co-stimulator ligand (ICOSL) or ICOSL-overexpressing mesenchymal stem cell according to the present invention effectively suppresses the proliferation of PBMCs, induces the expression of an ICOS in regulatory T cells, thereby inducing the differentiation and proliferation of the regulatory T cells through a PI3K-Akt mechanism, and thus can effectively prevent, treat, or enhance regulatory T cell-mediated diseases.

Abstract: Disclosed is a 5G or pre-5G communication system for supporting a data transmission rate higher than that of a 4G communication system such as LTE. A method for supporting a streaming service of a terminal, according to the present disclosure, comprises the steps of: requesting a streaming service from a server; receiving, from the server, metadata associated with the streaming service; and receiving predetermined configuration information and the streaming service, wherein the predetermined configuration information is included in a transmission control protocol (TCP) option.

Abstract: A method for producing a methanol precursor, methyl trifluoroacetate, having high-purity includes the steps of (a) preparing methyl bisulfate by mixing a catalyst with an acid solution comprising a sulfur-containing acid to provide a first mixture and supplying methane gas to the first mixture to prepare the methyl bisulfate; and (b) preparing methyl trifluoroacetate (CF3CO2CH3) by adding trifluoroacetic acid (CF3CO2H) to the first mixture including the methyl bisulfate to provide a second mixture and distilling the second mixture under heating to prepare, separate and purify the methyl trifluoroacetate (CF3CO2CH3). Methanol may be produced by adding water to the methyl trifluoroacetate (CF3CO2CH3). A methyl ester represented by Formula 2 below may be produced by adding a carboxylic acid represented by Formula 1 below to the methyl trifluoroacetate (CF3CO2CH3): R1CO2H??(1), where R1 is selected from C1-C10 alkyl groups, R1CO2CH3??(2), where R1 is as defined in Formula 1.

Abstract: A sulfur dioxide absorbent that is an ionic liquid including a solvent; and a salt of a diamine compound that is substituted with a hydroxyl group and has a chemical formula 1 to 3 below dissolved in the solvent: where, in Chemical Formula 1 and 2, R1-R4 are the same or different and each is independently selected from the group consisting of H, a C1-C6 alkyl, and a C1-C6 alkoxy; and where, in Chemical Formula 1 to 3, X is selected from the group consisting of Cl, Br, I, MeSO3, CF3SO3, HCO2, CF3CO2 and CH3CO2; and n is an integer of 1-10. The sulfur dioxide absorbent is constituted to selectively absorb sulfur dioxide and sulfurous acid (H2SO3) formed by combination of sulfur dioxide with water, not CO2.

Abstract: Disclosed is a catalyst complex for a fuel cell. The catalyst complex includes a support including carbon (C), platinum (Pt) supported on the support, and an iridium (Ir) compound supported on the support, and the iridium compound includes at least one of iridium oxide represented by Chemical Formula 1, IrOx, and iridium-transition-metal oxide represented by Chemical Formula 2, IrMOx, wherein M is a transition metal selected from the group consisting of Fe, Co, Cu, Ni and combinations thereof, and x is from 1 to 2.

Abstract: Disclosed is a 5G or pre-5G communication system. To this end, an electronic device transmits a request message to a server through each of a plurality of communication paths at least based on a multi-radio access technology, and receives a video segment from the server through each of the plurality of communication paths according to the request message. The electronic device estimates a transmission quality at each communication path on the basis of video segments received for each of the plurality of communication paths at a radio search point satisfying at least one preset condition. The electronic device can determine, by the transmission quality estimated according to each of the plurality of communication paths and the preset reference transmission quality, one communication mode, among a plurality of communication modes, for designating at least one communication path for supporting the video streaming, among the plurality of communication paths.

Abstract: Disclosed is a zinc-imidazole complex mixed catalyst. Also disclosed are a method for preparing the zinc-imidazole complex mixed catalyst and a method for producing a methyl N-phenyl carbamate in high yield with high selectivity in the presence of the catalyst. The zinc-imidazole complex mixed catalyst can be reused due to its high reaction stability. In addition, the use of the zinc-imidazole complex mixed catalyst leads to a marked improvement in the production yield of a methyl N-phenyl carbamate with high selectivity.

Abstract: The present disclosure relates to a hydroxyl group-containing amine-based sulfur dioxide and sulfurous absorbent, and a method for preparing the same. The absorbent uses an ionic liquid in the form of a salt including a diamine compound substituted with a hydroxyl group, and can be used as an absorbent capable of removing not only sulfur dioxide (SO2) but also sulfurous acid (H2SO3) formed by combination of sulfur dioxide with water.

Abstract: The present invention provides a diaminopyrimidine derivative or its pharmaceutically acceptable salt, a process for the preparation thereof, a pharmaceutical composition comprising the same, and a use thereof. The diaminopyrimidine derivative or its pharmaceutically acceptable salt functions as a 5-HT4 receptor agonist, and therefore can be usefully applied for preventing or treating dysfunction in gastrointestinal motility, one of the gastrointestinal diseases, such as gastroesophageal reflux disease (GERD), constipation, irritable bowel syndrome (IBS), dyspepsia, post-operative ileus, delayed gastric emptying, gastroparesis, intestinal pseudo-obstruction, drug-induced delayed transit, or diabetic gastric atony.