Abstract: The invention provides gastric residence systems, or components of gastric residence system such as segments or elongate members of gastric residence systems, with release rate-modulating films and methods for making and using such systems. The release rate-modulating films provide good control over release of agents (such as therapeutic, diagnostic, or nutritional agents) present in the gastric residence system. The films also permit higher drug loading in the gastric residence systems and components of gastric residence systems while maintaining good control over release of agents. Some embodiments of the films can provide resistance against burst release of agent upon exposure to alcohol.

Abstract: The invention provides gastric residence systems, or components of gastric residence system such as segments or elongate members of gastric residence systems, with release rate-modulating films and methods for making and using such systems. The release rate-modulating films provide good control over release of agents (such as therapeutic, diagnostic, or nutritional agents) present in the gastric residence system. The films also permit higher drug loading in the gastric residence systems and components of gastric residence systems while maintaining good control over release of agents. Some embodiments of the films can provide resistance against burst release of agent upon exposure to alcohol.

Abstract: Provided is a compound of Formula 1: where X is O or S; Ar1 is an aryl having 6 to 20 carbon atoms substituted with at least one functional group selected from the group consisting of cyano, pyridinyl, benzimidazolyl and diphenylphosphine oxide, or a substituted or unsubstituted heteroaryl having 3 to 20 carbon atoms containing at least one N; and Ar2 is a functional group of Formula 2 below, with the proviso that Ar1 and Ar2 are different from each other, where Ar3 is an aryl having 6 to 20 carbon atoms, and m is an integer of 0 to 2, and an organic light emitting device comprising the same.

Abstract: The invention provides gastric residence systems for administration of adamantane-class drugs or pharmaceutically acceptable salts thereof, such as memantine or pharmaceutically acceptable salts thereof, and methods for making and using such systems. The systems provide extended release of drug, reducing the frequency with which the drug must be administered to the patient. The gastric residence systems, or components of gastric residence system such as segments or elongate members of gastric residence systems, can have release rate-modulating films, which provide good control over release of adamantane-class drugs or pharmaceutically acceptable salts thereof present in the gastric residence system. Some embodiments of the films can provide resistance against burst release of adamantane-class drugs or pharmaceutically acceptable salts thereof upon exposure to alcohol.

Abstract: Provided are gastric residence systems comprising: a core; a plurality of arms connected to the core at a proximal end through a plurality of linker components, one linker component of the plurality of linker components corresponding to each arm of the plurality of arms, and the plurality of arms extending radially from the proximal end, and a filament circumferentially connecting each arm of the plurality of arms.

Abstract: Provided are gastric residence dosage forms comprising flexible arms that can help prevent premature passage of the gastric residence system through the pylorus of a patient. In particular, described herein are gastric residence systems comprising one or more arms extending radially, the one or more arms comprising a first segment comprising a first polymer composition and a second segment comprising a second polymer composition, wherein the first segment has a stiffness of greater than a stiffness of the second segment, as measured using a 3-point bending test per ASTM D790. The second segments of the arms of the gastric residence systems help prevent premature passage of the gastric residence system through the pylorus of a patient.

Abstract: Gastric residence systems for administration of agents, such as drugs, are disclosed. Features which enhance gastric retention during the desired residence time and which allow for more precise control over residence time are disclosed, including circumferential filaments connecting the arms of a stellate gastric residence system; flexible arms for a gastric residence system; improved time-dependent and enteric disintegrating matrices (linkers); and release rate-modulating polymer coatings which are resistant to change in release rate properties during heat-assisted assembly or thermal cycling. Combinations of these features are also disclosed.

Abstract: The present disclosure relates to a novel cyclic compound represented by Chemical Formula 1 and an organic light emitting device using the same. The compound is used as a material of an organic material layer of the organic light emitting device.

Abstract: A conductive and flexible carbon fiber according to the present disclosure includes a carbon fiber; a resin layer formed on the carbon fiber; and a metal plating layer formed on the resin layer. The resin layer of the carbon and flexible carbon fiber according to the present disclosure is uniformly coated on the carbon fiber, such that a breakage of the carbon fiber during the conductive carbon fiber production process may be prevented. In addition, the metal plating layer having the uniform thickness is plated on the resin layer having the uniform thickness, such that the electric conductivity of the carbon fiber may be improved and the flexibility of the carbon fiber may also be increased. In addition, a production process of the carbon and flexible carbon fiber according to the present disclosure is simplified, such that the production cost and time may be saved.

Abstract: The invention provides gastric residence systems, or components of gastric residence system such as segments or elongate members of gastric residence systems, with release rate-modulating films and methods for making and using such systems. The release rate-modulating films provide good control over release of agents (such as therapeutic, diagnostic, or nutritional agents) present in the gastric residence system. The films also permit higher drug loading in the gastric residence systems and components of gastric residence systems while maintaining good control over release of agents. Some embodiments of the films can provide resistance against burst release of agent upon exposure to alcohol.

Abstract: The present disclosure relates to a novel cyclic compound represented by Chemical Formula 1 and an organic light emitting device using the same. The compound is used as a material of an organic material layer of the organic light emitting device.

Abstract: Provided is a compound of Formula 1: where X is O or S; Ar1 is an aryl having 6 to 20 carbon atoms substituted with at least one functional group selected from the group consisting of cyano, pyridinyl, benzimidazolyl and diphenylphosphine oxide, or a substituted or unsubstituted heteroaryl having 3 to 20 carbon atoms containing at least one N; and Ar2 is a functional group of Formula 2 below, with the proviso that Ar1 and Ar2 are different from each other, where Ar3 is an aryl having 6 to 20 carbon atoms, and m is an integer of 0 to 2, and an organic light emitting device comprising the same.

Abstract: The invention provides gastric residence systems for administration of adamantane-class drugs or pharmaceutically acceptable salts thereof, such as memantine or pharmaceutically acceptable salts thereof, and methods for making and using such systems. The systems provide extended release of drug, reducing the frequency with which the drug must be administered to the patient. The gastric residence systems, or components of gastric residence system such as segments or elongate members of gastric residence systems, can have release rate-modulating films, which provide good control over release of adamantane-class drugs or pharmaceutically acceptable salts thereof present in the gastric residence system. Some embodiments of the films can provide resistance against burst release of adamantane-class drugs or pharmaceutically acceptable salts thereof upon exposure to alcohol.

Abstract: A second stage Fischer-Tropsch reaction system to enhance a conversion ratio of a synthetic gas, includes, at least one first reactor that uses a Fe catalyst, receives a first synthetic gas extracted from a coal, biomass or natural gas, and reacts the first synthetic gas with the Fe catalyst to obtain a synthetic fuel, and a second reactor that uses a Fe.Co or Co catalyst, receives a second synthetic gas discharged from the first reactors after reaction, and reacts the second synthetic gas with the Fe.Co or Co catalyst to obtain a synthetic fuel.

Abstract: Disclosed is a method for manufacturing an iron catalyst, the method including: a mixing stage where a mixture solution is manufactured by mixing iron nitrate (Fe(NO3)3) solution and copper nitrate (Cu(NO3)2) solution; a precipitation slurry-forming stage where a precipitation slurry is formed by adding at least one of sodium carbonate (Na2CO3) or sodium hydroxide (Na2CO3) solutions to the mixture solution; a washing stage where the precipitation slurry is filtered and washed with distilled water; a silica adding stage where fumed silica powder and potassium carbonate (K2CO3) solution are added to the precipitation slurry and then agitated; a drying stage where the precipitation slurry is passed through a sieve having a size of 30 ?m to 100 ?m and dried by a spry drying method to manufacture a powdered iron catalyst; and a heat treatment stage where the iron catalyst is dried at a temperature of 50° to 150° C., and then heat-treated at a temperature of 300° C. to 500° C.

Abstract: Disclosed is a method for manufacturing an iron catalyst, the method including: a mixing stage where a mixture solution is manufactured by mixing iron nitrate (Fe(NO3)3) solution and copper nitrate (Cu(NO3)2) solution; a precipitation slurry-forming stage where a precipitation slurry is formed by adding at least one of sodium carbonate (Na2CO3) or sodium hydroxide (Na2CO3) solutions to the mixture solution; a washing stage where the precipitation slurry is filtered and washed with distilled water; a silica adding stage where fumed silica powder and potassium carbonate (K2CO3) solution are added to the precipitation slurry and then agitated; a drying stage where the precipitation slurry is passed through a sieve having a size of 30 ?m to 100 ?m and dried by a spry drying method to manufacture a powdered iron catalyst; and a heat treatment stage where the iron catalyst is dried at a temperature of 50° to 150° C., and then heat-treated at a temperature of 300° C. to 500° C.

Abstract: A second stage Fischer-Tropsch reaction system to enhance a conversion ratio of a synthetic gas, includes, at least one first reactor that uses a Fe catalyst, receives a first synthetic gas extracted from a coal, biomass or natural gas, and reacts the first synthetic gas with the Fe catalyst to obtain a synthetic fuel, and a second reactor that uses a Fe.Co or Co catalyst, receives a second synthetic gas discharged from the first reactors after reaction, and reacts the second synthetic gas with the Fe.Co or Co catalyst to obtain a synthetic fuel.