Abstract: Provided are an ammonia synthesis system and its operation method, the system including an ammonia synthesis reactor; two or more catalyst beds included in the ammonia synthesis reactor; a backflow prevention plate disposed downstream from each of the catalyst beds except for the catalyst bed disposed at the lowest of the two or more catalyst beds for preventing a backflow of mixed gas; a distribution device disposed upstream from each of the two or more catalyst beds for distributing the mixed gas to the catalyst bed; mixed gas supply lines arranged to supply the mixed gas to each distribution device; and a mixed gas heat exchanger for supplying heat to the mixed gas by heat-exchanging the mixed gas fed through the mixed gas supply line with a heat storage medium.

Abstract: An ammonia synthesis system, an operation method thereof, and an ammonia synthesis method are provided. The system includes a compressor for compressing mixed gas; a feed supply line for supplying the mixed gas to the compressor; an ammonia synthesis reactor for synthesizing ammonia by feeding the mixed gas compressed by the compressor into the reactor; a first ammonia separation device for separating syngas produced by the ammonia synthesis reactor into a sweep gas including nitrogen and hydrogen and into an ammonia rich gas; a second ammonia separation device for separating the ammonia rich gas into the ammonia and a regeneration stream including the nitrogen and the hydrogen; a feed recirculation line for recirculating the regeneration stream to the feed supply line; and a sweep gas recirculation line for recirculating the sweep gas to the ammonia synthesis reactor.

Abstract: An ammonia synthesis system, an operation method thereof, and an ammonia synthesis method are provided. The system includes a compressor for compressing mixed gas; a feed supply line for supplying the mixed gas to the compressor; an ammonia synthesis reactor for synthesizing ammonia by feeding the mixed gas compressed by the compressor into the reactor; an air separation unit for separating nitrogen from air; a first cooler for cooling syngas including ammonia discharged from the ammonia synthesis reactor; and a second cooler for heat-exchanging gaseous nitrogen separated by the air separation unit with the syngas cooled by the first cooler, wherein gaseous nitrogen heat-exchanged by the second cooler is supplied to the feed supply line.

Abstract: A ammonia synthesis system, an operation method thereof, and an ammonia synthesis method are provided. The system includes a compressor for compressing mixed gas; a feed supply line for supplying the mixed gas to the compressor; an ammonia synthesis reactor for synthesizing ammonia by feeding the mixed gas compressed by the compressor into the reactor; an ammonia separation device for separating syngas produced by the ammonia synthesis reactor into ammonia and a regeneration stream; a feed recirculation line for recirculating the regeneration stream to the feed supply line; and a buffer tank installed in the feed recirculation line.

Abstract: Provided is an ammonia synthesis system including an ammonia synthesis reactor; two or more catalyst beds included in the ammonia synthesis reactor; a backflow prevention plate disposed downstream from each of the catalyst beds except for the catalyst bed disposed at the lowest of the two or more catalyst beds for preventing a backflow of mixed gas; a distribution device disposed upstream from each of the two or more catalyst beds for distributing the mixed gas to the catalyst bed; mixed gas supply lines arranged to supply the mixed gas to each distribution device; and a microwave heating device for emitting microwaves to each of the two or more catalyst beds, wherein the catalyst bed contains a microwave reactive catalyst mixture including a catalyst and a carbon body.

Abstract: Provided is an ammonia synthesis system including an ammonia synthesis reactor; two or more catalyst beds included in the ammonia synthesis reactor; a backflow prevention plate disposed downstream from each of the catalyst beds except for the catalyst bed disposed at the lowest of the two or more catalyst beds and preventing a backflow of mixed gas; a distribution device disposed upstream from each of the two or more catalyst beds and distributing the mixed gas to the catalyst bed; mixed gas supply lines arranged to supply the mixed gas to each distribution device; and a microwave heating device for emitting microwaves to each of the two or more catalyst beds, wherein the catalyst bed includes a metal nitride catalyst.

Abstract: Provided are a gas distribution system for an ammonia synthesis system, the gas distribution system comprising: three or more distribution plates disposed upstream from a catalyst bed disposed inside an ammonia synthesis reactor of the ammonia synthesis system; three or more distribution devices, each disposed upstream from a corresponding one of the distribution plates for distributing a mixed gas to the distribution plates; and three or more mixed gas supply lines, each arranged to supply the mixed gas to a respective one of the distribution devices, wherein the three or more distribution plates have different opening ratios.

Abstract: Provided is an ammonia synthesis system including an ammonia synthesis reactor; two or more catalyst beds; a distribution plate; a backflow prevention plate; a distribution device; and mixed gas supply lines, wherein the distribution plate has a plurality of openings formed independently of each other, and a percentage of a total region of the openings to a total region of each distribution plate is referred to as an opening ratio, wherein the opening ratio of the distribution plate is decreased toward a lower part.

Abstract: Provided is an ammonia synthesis system including an ammonia synthesis reactor; a single or two or more catalyst beds included in the ammonia synthesis reactor; a distribution device disposed upstream from each of the catalyst beds and distributing mixed gas to the catalyst bed; a mixed gas supply line disposed to supply the mixed gas to the distribution device; and each mixed gas distribution plate is disposed between the catalyst bed and the distribution device and includes a plurality of openings, wherein some openings among the plurality of openings are mounted with a cover at the bottom, and the opening mounted with the cover normally maintains the cover to be closed and to be opened under a fluid pressure.

Abstract: Provided is an ammonia synthesis system including an ammonia synthesis reactor; at least two catalyst beds included in the ammonia synthesis reactor; a backflow prevention plate disposed downstream from each one of the catalyst beds except for the catalyst bed disposed at the lowest of the at least two catalyst beds for preventing a backflow of mixed gas; a distribution device disposed upstream from each one of the at least two catalyst beds for distributing the mixed gas to the catalyst bed; mixed gas supply lines arranged to supply the mixed gas to each distribution device; and a microwave heating device for emitting microwaves to each of the at least two catalyst beds.

Abstract: Provided are a mixed gas distribution system and an ammonia synthesis system comprising the mixed gas distribution system, the mixed gas distribution system comprising a gas distribution device; a mixed gas supply line connected to the gas distribution device; a flow induction guide; an upper area; and a plurality of mixed gas flow pipes fixed to a circumference part of a bottom surface of the upper area, and connected to a plurality of openings formed in the circumference part of the bottom surface to enable a movement of mixed gas.

Abstract: Disclosed is a show case capable of managing and displaying objects stored therein. A show case according to one aspect of the present disclosure is a show case having an accommodation space in which an object is stored, and includes: a body; a moving body configured to form the accommodation space together with the body and including a transparent window; a blowing part configured to circulate air in the accommodation space; a first illumination configured to illuminate an object placed on a bottom surface of the accommodation space; a second illumination configured to illuminate a rear surface of the accommodation space; an input part to which an image of the object accommodated in the accommodation space is input; and a controller configured to recommend a type of second illumination to a user depending on the image input to the input part.

Abstract: An electronic device for measuring water quality of inflow sewage, the electronic device comprising: a sensor part installed inside a pipeline of the inflow sewage and including at least one sensor for measuring a water quality item of the inflow sewage and outputting a sensing value; a communication part for communicating with a server; and a controller for processing and transmitting the sensing value to the server, wherein the sensor part further includes a pollution prevention part for emitting a fluid toward an electrode part of the sensor, and wherein the controller controls the pollution prevention part to emit the fluid at a first predetermined period.

Abstract: An inkjet resin composition includes about 20% to about 30% by weight of 2-ethylhexyl acrylate, about 20% to about 30% by weight of 4-hydroxybutyl acrylate, about 40% to about 50% by weight of isodecyl acrylate, about 1% to about 10% by weight of urethane acrylate, about 1% to about 5% by weight of an initiator, about 1% to about 5% by weight of a silane coupling agent, and about 0.05% to about 1% by weight of a surface flow control additive.

Abstract: The present invention relates to a composition for diagnosing or predicting a metabolic syndrome and a composition for predicting a group at high risk of expression of blood ceramide and to a single nucleotide polymorphism (SNP), derived through a genome wide association study (GWAS), capable of predicting metabolic syndrome and a group at high risk of expression of blood ceramide, which is a risk factor for metabolic syndrome. When used, a SNP marker derived by the present invention makes it possible to diagnose or predict metabolic syndrome and to predict a group at high risk of expression of blood ceramide, whereby patients suffering from the metabolic syndrome caused by a high expression of blood ceramide can be effectively diagnosed and managed. On the basis of these effects, the present invention can find wide applications in the pharmaceutical industry, etc.

Abstract: The present invention relates to a heterodimeric Fc-fused protein comprising a first Fc region and a second Fc region of an immunoglobulin Fc pair and a physiologically active protein composed of two or more different subunits, wherein one or more subunits of the physiologically active protein are linked separately to one or more ends of the N-terminus or C-terminus of the first Fc region and/or the second Fc region, and CH3 domains of the first Fc region and the second Fc region are mutated so as to promote the heterodimeric Fc formation. Moreover, the present invention relates to a pharmaceutical composition comprising the heterodimeric Fc-fused protein.

Abstract: A method and a device for compensating for sensor drift are disclosed. A method for compensating for sensor drift, according to one embodiment, comprises the steps of: confirming the suitability of sensor data; defining a transformation model for transforming the sensor data; setting a loss function on the basis of the transformation model; and optimizing the transformation model on the basis of the loss function.

Abstract: The present invention relates to methods of overcoming the resistance to an EGFR (Epidermal Growth Factor Receptor)-targeting antibody through a peptide that binds specifically to neuropilin-1 (NRP1). The NRP1-specific binding-fused EGFR-targeting antibody according to the present invention is highly effective in the treatment of various tumors resistant to EGFR-targeting antibody alone.

Abstract: The present invention relates to a heterodimeric Fc-fused protein comprising a first Fc region and a second Fc region of an immunoglobulin Fc pair and a physiologically active protein composed of two or more different subunits, wherein one or more subunits of the physiologically active protein are linked separately to one or more ends of the N-terminus or C-terminus of the first Fc region and/or the second Fc region, and CH3 domains of the first Fc region and the second Fc region are mutated so as to promote the heterodimeric Fc formation. Moreover, the present invention relates to a pharmaceutical composition comprising the heterodimeric Fc-fused protein.

Abstract: A display device according to an embodiment includes a display panel and a protection layer that is disposed on the display panel, wherein the protection layer includes: a first protection layer; a metal layer that overlaps the first protection layer and includes a hole; and an adhesive layer disposed between the first protection layer and the metal layer. The adhesive layer includes a first area disposed between the first protection layer and the metal layer, and a second area and a third area that are disposed in the hole, wherein a peeling strength of the second area and a peeling strength of the third area are different from each other.