Abstract: A digital twin federation system for interoperability and federation between digital twins and an operating method thereof are provided. The digital twin federation system includes single digital twins to be federated, a metadata repository that stores metadata on the single digital twins and a federated digital twin, a federated digital twin generated by federating the single digital twins, and a management device that searches for a single digital twin providing a specific service among the single digital twins from the metadata repository through a search function to determine the single digital twin to be a digital twin for the federated digital twin, generates the federated digital twin where the single digital twins are federated, and generates a tool for providing a service of the federated digital twin, thereby expanding existing services and provide new services by federating digital twins, and easily solving problems involving domains through simulation and visualization.

Abstract: An electrode, a method for manufacturing the electrode, and a lithium metal battery including the electrode are provided. The electrode includes a lithium matrix and a plurality of lithium ion conductive one-dimensional structures dispersed in various directions within the lithium matrix.

Abstract: An electric compressor including: a rotating shaft configured to drive a compression mechanism; a rotor configured to have a rotating shaft through-hole into which the rotating shaft is inserted; a cover configured to cover a longitudinal end of the rotor; and a stator configured to be installed on a radially outer side of the rotor. A plurality of slots into which a permanent magnet is inserted is formed to be spaced apart from each other in the rotor in a circumferential direction of the rotor. A cooling hole is formed in both ends of the slot, and the slot and the cooling hole are spatially separated. Refrigerant flows into the cooling hole and cools the permanent magnet. Accordingly, it is possible to improve the cooling performance of the permanent magnet.

Abstract: The present invention relates to a vessel data integration system and a vessel comprising same. Accordingly, the present invention preferably comprises: a first vessel data conversion device for converting first vessel data which have a non-standard format and are received from first equipment; a second vessel data conversion device for converting second vessel data which have a standard format and are received from second equipment; a data processing device for classifying, by type, the integrated vessel data received from the vessel data conversion device; a complex event processing (CEP) device for filtering out integrated vessel data, which needs to be transmitted in real-time; and a real-time data transmission device for transmitting in real-time the integrated vessel data.

Abstract: The present invention relates to a ship data consolidated management method and a device for same. Accordingly, the present invention relates to a ship data consolidated management method and device, the method being characterized by comprising the steps of: collecting ship data from at least one piece of ship equipment; converting the ship data to a certain data format; and transmitting the converted ship data to an external device.

Abstract: The present invention relates to a vessel data integration system and a vessel comprising same. Accordingly, the present invention preferably comprises: a first vessel data conversion device for converting first vessel data which have a non-standard format and are received from first equipment into integrated vessel data by using a vessel data model (VDM)-based VDM path; and a second vessel data conversion device for converting second vessel data which have a standard format and are received from second equipment into the integrated vessel data.

Abstract: The present invention relates to a vessel data integration system and a vessel comprising same. According to the present invention, a vessel data request including a VDM path is received, and by using the received VDM path, the requested vessel data is searched from a database in which vessel data are stored. The VDM path may be an identifier hierarchically defining paths leading to each vessel data in a VDM, and each vessel data may be identified by the VDM path. Accordingly, necessary vessel data may be efficiently provided to various third-party services.

Abstract: The present invention relates to a vessel data integration system and a vessel comprising same. Accordingly, the present invention preferably comprises: a first vessel data conversion device for converting first vessel data which have a non-standard format and are received from first equipment into integrated vessel data by using a vessel data model (VDM)-based VDM path; and a second vessel data conversion device for converting second vessel data which have a standard format and are received from second equipment into the integrated vessel data.

Abstract: The present invention relates to a method for collecting vessel data using a vessel data model (VDM), a device for collecting vessel data, and a vessel comprising same. Accordingly, it is preferable that the present invention comprises the steps of: acquiring vessel data generated from vessel equipment; and, on the basis of a VDM, converting the vessel data into integrated vessel data having an integrated format, and collecting same, wherein the VDM is generated by combining a vessel model, a system model and a data model, wherein the vessel model is a model defined by hierarchically classifying the vessel equipment, the system model is a model defined by structuring the vessel data, and the data model is a model for defining the attributes and types of the vessel data.

Abstract: The present invention relates to a vessel data integration system and a vessel comprising same. Accordingly, the present invention preferably comprises: a first vessel data conversion device for converting first vessel data which have a non-standard format and are received from first equipment; a second vessel data conversion device for converting second vessel data which have a standard format and are received from second equipment; a data processing device for classifying, by type, the integrated vessel data received from the vessel data conversion device; a complex event processing (CEP) device for filtering out integrated vessel data, which needs to be transmitted in real-time; and a real-time data transmission device for transmitting in real-time the integrated vessel data.

Abstract: The present invention relates to a ship data consolidated management method and a device for same. Accordingly, the present invention relates to a ship data consolidated management method and device, the method being characterized by comprising the steps of: collecting ship data from at least one piece of ship equipment; converting the ship data to a certain data format; and transmitting the converted ship data to an external device.

Abstract: Provided are an apparatus for supplying amine, including: transfer pipe through which amine is transferred; a heat wire which heats the amine that flows through the transfer pipe; a temperature control sensor which controls the temperature in the transfer pipe; and a product recovery valve which recovers product resulting from thermal decomposition of the amine, and a method for supplying amine using the same. The apparatus and method for supplying amine are capable of economically and effectively supplying amine utilizing the thermal decomposition properties of the amine, and may be used to supply amine, for example, to circulating water for power plants.

Abstract: The present invention relates to a system and method for three-dimensional advertising. The system and method of the present invention store advertisement data capable of being rendered as a three-dimensional object, the real position of which is designated. When a mobile communication terminal including a GPS receiver measures its own position, and transmits the position information of the mobile communication terminal to an advertisement server, an advertisement server transmits advertisement data set around the position information of the mobile communication terminal to the mobile communication terminal. The mobile communication terminal renders the advertisement data into a three-dimensional object, and displays the rendered advertisement data by overlapping same with a real image, which is displayed through a camera built in the mobile communication terminal.

Abstract: Provided is a physical and chemical cleaning method, including introducing nitrogen gas, liquid nitrogen or dry ice into a cleaning solution containing at least one selected from the group consisting of water, monoethanolamine (ETA), dimethylamine (DMA), NH3, ethylenediaminetetraacetic acid (EDTA), diethylenetriaminepentaacetic acid (DTPA) and N2H2 to remove sludge. The physical and chemical cleaning method is capable of removing sludge, generated or deposited on the substrate surfaces, surfaces of constitutional parts, or gaps in various systems and instruments, more effectively. The physical and chemical cleaning method may be applied to cleaning of steam generators, boilers, heat exchangers, or the like, used in atomic power stations.

Abstract: Provided are an apparatus for supplying amine, including: transfer pipe through which amine is transferred; a heat wire which heats the amine that flows through the transfer pipe; a temperature control sensor which controls the temperature in the transfer pipe; and a product recovery valve which recovers product resulting from thermal decomposition of the amine, and a method for supplying amine using the same. The apparatus and method for supplying amine are capable of economically and effectively supplying amine utilizing the thermal decomposition properties of the amine, and may be used to supply amine, for example, to circulating water for power plants.

Abstract: Disclosed is an air conditioner that can operate in a general cooling mode in which indoor air is cooled by heat exchange with a first refrigerant in a main evaporator, or alternatively in a fast cooling mode in which the indoor air is primarily cooled by heat exchange in a midway heat exchanger which includes the main evaporator for the first refrigerant and a fast cooling condenser for a second refrigerant, and then re-cooled in a fast cooling evaporator for the second refrigerant. Accordingly, fast and agreeable air cooling can be achieved.

Abstract: An air conditioner, in which a controller is installed separately from a plurality of indoor units and a plurality of outdoor units so that only the controller is added and conventional outdoor units are used when plural indoor units are required, thereby reducing costs due to the omission of other outdoor units. The controller determines whether or not the outdoor units are respectively operated according to a signal of a temperature sensing unit, and selectively operates the outdoor units according to a required capacity, thereby increasing the operating efficiency of the air conditioner.

Abstract: A multi air conditioner system in one example performs a cooling and heating changeover by selectively granting priority to one or more indoor units, determining whether there is one or more operating indoor units with priorities, and granting a control right for auto changeover to at least one indoor unit with priority.

Abstract: An air conditioner with a service valve assembly is disclosed wherein service valves are used for easy infusion and collection of refrigerant at the time of installation or detachment of separation-type multi-air conditioner mounted with a plurality of indoor units reducing the manufacturing costs and unit size. The air conditioner comprises: an outdoor unit including a compressor and heat exchanger; a plurality of indoor units including an expander and an indoor heat exchanger; a plurality of refrigerant input pipes; a first convergence piping for converging the refrigerant flowing in the plurality of refrigerant input pipes into the compressor; a second convergence piping for converging and introducing the refrigerant having passed the outdoor heat exchanger via the compressor into the plurality of indoor units; a plurality of refrigerant supply pipes; and first and second service valves for controlling fluid flow.

Abstract: A pipe-connection searching apparatus and method for a multiple air conditioner. The apparatus and method involving the identification of one of a plurality of indoor units, based on temperature criteria, and matching the one indoor unit to a corresponding one of a plurality of pipes that connect an outdoor unit to the plurality of indoor units, respectively.