Abstract: The present disclosure relates to a method for preparing a polyalkylene carbonate resin, and more particularly, to a method for preparing a polyalkylene carbonate resin having the reduced cyclic carbonate content, which is a by-product, and an increased ratio of a repeating unit including carbon dioxide, by increasing catalyst activity.

Abstract: A touch sensor includes first touch cells disposed in a first touch sensing area, the first touch cells each including a first touch pattern and a first dummy pattern, and second touch cells disposed in a second touch sensing area, the second touch cells each including a second touch pattern and a second dummy pattern. An area of a first dummy pattern area in which the first dummy pattern is disposed is greater than an area of a second dummy pattern area in which the second dummy pattern is disposed.

Abstract: An IoT-based system for measurement of contamination distribution of contaminated groundwater through real-time monitoring of a contamination degree of a contaminated groundwater well for control of a contaminated groundwater purification device and prediction of a purification period based on the measurement result.

Abstract: A light emitting element includes: a light emitting stack pattern including a first semiconductor layer, an active layer, and a second semiconductor layer that are sequentially stacked along one direction; and an insulating film surrounding an outer surface of at least one of the first semiconductor layer, the active layer, and the second semiconductor layer. The insulating film including a zinc oxide (ZnO) thin film layer.

Abstract: The present disclosure relates to an apparatus for fabricating a display panel including: an attachment member having a fixing portion in a pressurization direction to which a pressurization header is fixed, an attachment driving member configured to move the attachment member and the pressurization header in the pressurization direction or a detachment direction through a fixing frame of the attachment member, a first pressure sensing module between the pressurization header and the attachment member and configured to generate first pressure detection signals according to pressure applied to the pressurization header, a gradient setting module configured to set a gradient of the pressurization header based on magnitudes of the first pressure detection signals, and a gradient control module configured to adjust gradients of the pressurization header, the attachment member, and the fixing frame according to control of the gradient setting module.

Abstract: Disclosed are a separator for fuel cells capable of minimizing the volume of a system and the use of sealants, and a stack for fuel cells, more particularly, a stack for solid oxide fuel cells, including the same. Specifically, by adding a metal sheet having a specific shape, position and size to the separator, the stress applied to the sealant can be uniformized, and thus the oxidizing agent and fuel can be separated and electrically isolated using only a piece of sealant. Therefore, the stack for fuel cells is characterized in that there is no variation in temperature, reactant concentration, power, or the like between respective unit cells, so delamination and microcracks do not occur, the volume is minimized, and the power density per unit volume is very high.

Abstract: Provided is a composition for the prevention and treatment of one or more cancers selected from the group consisting of breast cancer, liver cancer, and gastric cancer, the composition comprising selenopsammaplin A as active ingredients. The selenopsammaplin A and derivatives thereof of the present invention have been confirmed to exhibit excellent anticancer activity against breast cancer, liver cancer, and gastric cancer cells, and exhibit not only a strong effect of suppressing breast cancer growth compared to existing psammaplin A but also an excellent effect of suppressing the metastasis of breast cancer cells, and thus the selenopsammaplin A and derivatives thereof are expected to be effectively usable as a pharmaceutical composition for the prevention and treatment of breast cancer, liver cancer, and/or gastric cancer, and for the suppression of breast cancer metastasis.

Abstract: Provided is a composition for treating coronavirus disease-19 (Corona19, COVID-19), including a phenanthroindolizidine and phenanthroquinolizidine alkaloid derivative compound, an optical isomer thereof, or a pharmaceutically acceptable salt thereof as an active ingredient. According to the presently claimed subject matter, the phenanthroindolizidine and phenanthroquinolizidine alkaloid derivative compound has excellent antiviral activity against COVID-19, and therefore can be effectively used as a composition for treating SARS coronavirus infection including COVID-19.

Abstract: The present disclosure relates to a radial flow reactor including a pair of beds configured to produce a product by processing a raw material supplied thereto. A substance being produced or the product is movable between the pair of beds before the product is moved to a separate reservoir. The ratio of the area of an outlet with respect to the area of an inlet in each of the pair of beds is adjusted such that, when the substance being produced or the product is introduced into the outlet of one bed of the pair of beds from the other bed of the pair of beds, limited processing efficiency caused by the limited area of the outlet in each of the pair of beds is overcome.

Abstract: The present invention relates to: novel selenopsammaplin A and a derivative thereof, which have anticancer activity; a preparation method therefor; and a pharmaceutical composition containing the same as active ingredients and, more specifically, to: a novel compound selenopsammaplin A and a derivative thereof which exhibit more excellent anticancer activity since a disulfide moiety thereof is substituted with diselenide according to research on the structural activity of psammaplin A, which is known to have an effect of inhibiting the growth of cancer cells; a preparation method therefor; and a composition for preventing or treating cancer, containing the same as active ingredients. According to the present invention, the novel selenopsammaplin A and the derivative thereof exhibit excellent anticancer activity on various human cancer cell lines so as to be expected to be effectively usable in a pharmaceutical composition for cancer prevention and treatment.

Abstract: Provided are novel piperazic acid containing peptide compound stereoisomer, solvate, or pharmaceutically acceptable salt thereof, method of preparing the same, and use thereof. The peptide compound, stereoisomer, solvate, or pharmaceutically acceptable salt thereof has activities of anticancer, anti-metastasis, and growth inhibition of resistant tumors, and thus may be used to prevent or treat various cancers or metastases of cancer.

Abstract: The present disclosure relates to a radial flow reactor including a pair of beds configured to produce a product by processing a raw material supplied thereto. A substance being produced or the product is movable between the pair of beds before the product is moved to a separate reservoir. The ratio of the area of an outlet with respect to the area of an inlet in each of the pair of beds is adjusted such that, when the substance being produced or the product is introduced into the outlet of one bed of the pair of beds from the other bed of the pair of beds, limited processing efficiency caused by the limited area of the outlet in each of the pair of beds is overcome.

Abstract: An alkaloid derivative having an activity of inhibiting angiogenesis and having structural stability is disclosed. A pharmaceutical composition containing the alkaloid derivative and its use are disclosed. The alkaloid derivative can be effectively used for treating or preventing diabetic retinopathy, cancer, duodenal ulcer, arthritis or obesity.

Abstract: Provided is a composition for the prevention and treatment of one or more cancers selected from the group consisting of breast cancer, liver cancer, and gastric cancer, the composition comprising selenopsammaplin A as active ingredients. The selenopsammaplin A and derivatives thereof of the present invention have been confirmed to exhibit excellent anticancer activity against breast cancer, liver cancer, and gastric cancer cells, and exhibit not only a strong effect of suppressing breast cancer growth compared to existing psammaplin A but also an excellent effect of suppressing the metastasis of breast cancer cells, and thus the selenopsammaplin A and derivatives thereof are expected to be effectively usable as a pharmaceutical composition for the prevention and treatment of breast cancer, liver cancer, and/or gastric cancer, and for the suppression of breast cancer metastasis.

Abstract: The present invention relates to: novel selenopsammaplin A and a derivative thereof, which have anticancer activity; a preparation method therefor; and a pharmaceutical composition containing the same as active ingredients and, more specifically, to: a novel compound selenopsammaplin A and a derivative thereof which exhibit more excellent anticancer activity since a disulfide moiety thereof is substituted with diselenide according to research on the structural activity of psammaplin A, which is known to have an effect of inhibiting the growth of cancer cells; a preparation method therefor; and a composition for preventing or treating cancer, containing the same as active ingredients. According to the present invention, the novel selenopsammaplin A and the derivative thereof exhibit excellent anticancer activity on various human cancer cell lines so as to be expected to be effectively usable in a pharmaceutical composition for cancer prevention and treatment.

Abstract: The present invention relates to an alkaloid derivative inhibiting angiogenesis and having structural stability, and pharmaceutical composition comprising the same as an active ingredient. The alkaloid derivative of the present invention can be effectively used for treating or preventing diabetic retinopathy, cancer, duodenal ulcer, arthritis or obesity.

Abstract: Provided are a novel peptide compound, a method of producing the same, and use of the peptide compound. Since the peptide compound has anticancer activity, the peptide compound may be used for the prevention or treatment of cancer.

Abstract: Provided are a novel peptide compound, a method of producing the same, and use of the peptide compound. Since the peptide compound has anticancer activity, the peptide compound may be used for the prevention or treatment of cancer.

Abstract: Provided are a novel peptide compound, a method of producing the same, and use of the peptide compound. Since the peptide compound has anticancer activity, the peptide compound may be used for the prevention or treatment of cancer.

Abstract: Provided are a novel peptide compound, a method of producing the same, and use of the peptide compound. Since the peptide compound has anticancer activity, the peptide compound may be used for the prevention or treatment of cancer.