Abstract: An apparatus, method, and system for displaying an ultrasound image based on mixed reality are described. The method of displaying an ultrasound image based on mixed reality according to an exemplary embodiment includes obtaining the ultrasound image captured through an ultrasound device; obtaining localization information of a probe of the ultrasound device; converting the ultrasound image into a composite image to be output based on the mixed reality; and outputting the composite image by overlaying the composite image on a reference image captured to include the probe.

Abstract: A storage device includes at least one nonvolatile memory device including a plurality of memory blocks, the nonvolatile memory device configured to store user data and meta data in the plurality of memory blocks, and a device controller configured to control the nonvolatile memory device, to calculate a user cost corresponding to a time of memory accesses to the user data to be performed at garbage collection with respect to each of the plurality of memory blocks, to calculate a meta cost corresponding to a time of memory accesses to the meta data to be performed at the garbage collection with respect to each of the plurality of memory blocks, to select a victim block among the plurality of memory blocks based on the user cost and the meta cost, and to perform the garbage collection on the victim block.

Abstract: The present invention relates to a technology for treating radioactive liquid waste containing a hardly degradable compound, and more specifically, to a technology for treating radioactive liquid waste containing a material such as an organic decontamination agent, an inorganic decontamination agent, liquid scintillation counter liquid waste, and the like generated at nuclear power plants, nuclear facilities, facilities at which radiation (radioactivity) is used, and the like. The method for treating radioactive liquid waste of the present invention includes adding two or more selected from the group consisting of a metal ion, an oxidizing agent, air, oxygen, or nitrous oxide, and a semiconductor to radioactive liquid waste to prepare a pre-treatment solution, and irradiating the pre-treatment solution with radiation.

Abstract: A memory device and a dynamic garbage collection method thereof are provided. The method includes receiving a minimum operating speed, ascertaining a reference valid page count ratio (VPC), using a maximum operating speed, the minimum operating speed, and a garbage collection speed, the reference VPC ratio being ascertained by the following formula 1 and determining whether to perform a garbage collection, using the reference VPC ratio and a current average VPC ratio. <Formula 1> Vr=Gp (Jp?Mp)/(Jp*Mp+(Gp*(Jp?Mp))) Here, Vr is the reference VPC ratio, Gp is the garbage collection speed, Jp is the maximum operating speed, and Mp is the minimum operating speed.

Abstract: A storage device includes at least one nonvolatile memory device including a plurality of memory blocks, the nonvolatile memory device configured to store user data and meta data in the plurality of memory blocks, and a device controller configured to control the nonvolatile memory device, to calculate a user cost corresponding to a time of memory accesses to the user data to be performed at garbage collection with respect to each of the plurality of memory blocks, to calculate a meta cost corresponding to a time of memory accesses to the meta data to be performed at the garbage collection with respect to each of the plurality of memory blocks, to select a victim block among the plurality of memory blocks based on the user cost and the meta cost, and to perform the garbage collection on the victim block.

Abstract: A memory device and a dynamic garbage collection method thereof are provided. The method includes receiving a minimum operating speed, ascertaining a reference valid page count ratio (VPC), using a maximum operating speed, the minimum operating speed, and a garbage collection speed, the reference VPC ratio being ascertained by the following formula 1 and determining whether to perform a garbage collection, using the reference VPC ratio and a current average VPC ratio. <Formula 1> Vr=Gp (Jp?Mp)/(Jp*Mp+(Gp*(Jp?Mp))) Here, Vr is the reference VPC ratio, Gp is the garbage collection speed, Jp is the maximum operating speed, and Mp is the minimum operating speed.

Abstract: The present invention provides an ionic polymer membrane prepared by irradiating the compound represented by formula 1 and an ionic polymer. The ionic polymer membrane of the present invention has the advantage of excellent processability, low production costs, high ion exchange capacity and high durability. Also, the method for preparing the ionic polymer membrane of the invention not only facilitates the production of the ionic polymer membrane in a 3-dimensional network structure which has high ion exchange capacity and high dimensional stability but also makes it easy to produce membranes in various forms and sizes by using the composition itself as a coating solution with using the commercialized inexpensive ionic polymer without additional high-risk multi-step introduction process of ionic exchange group.

Abstract: The present invention provides an ionic polymer membrane prepared by irradiating the compound represented by formula 1 and an ionic polymer. The ionic polymer membrane of the present invention has the advantage of excellent processability, low production costs, high ion exchange capacity and high durability. Also, the method for preparing the ionic polymer membrane of the invention not only facilitates the production of the ionic polymer membrane in a 3-dimensional network structure which has high ion exchange capacity and high dimensional stability but also makes it easy to produce membranes in various forms and sizes by using the composition itself as a coating solution with using the commercialized inexpensive ionic polymer without additional high-risk multi-step introduction process of ionic exchange group.

Abstract: A memory system, including a flash memory including multiple memory blocks, and a controller configured to erase each of the memory blocks using multiple steps. The controller stores, for each of the memory blocks, metadata indicating which of the multiple steps have been completed, and erases each of the memory blocks based on the stored metadata.

Abstract: A memory system includes a flash memory including a block having first sub-blocks and second sub-blocks different from each other, the second sub-blocks including free pages only; and a controller configured to erase the flash memory in units of the sub-blocks, and in a garbage collection operation, the controller is configured to copy data of a valid page of the first sub-blocks to at least one of the second sub-blocks.

Abstract: A method for formatting a signal in a mobile communication system by appending a plurality of medium access control headers to a plurality of medium access control-service data units for data transfer between a mobile station and network in the mobile communication system. If the service data units have the same characteristics, a medium access control-protocol data unit is formed by successively coupling the service data units to any one of the medium access control headers. If the service data units have different characteristics, the protocol data unit is formed by sequentially coupling each of the service data units and each of the medium access control headers. The formed protocol data unit is then transformed into a transport block with a predetermined size.

Abstract: A memory system, comprising a flash memory comprising multiple memory blocks, and a controller configured to erase each of the memory blocks using multiple steps. The controller stores, for each of the memory blocks, metadata indicating which of the multiple steps have been completed, and erases each of the memory blocks based on the stored metadata.

Abstract: A memory system includes a flash memory including a block having first sub-blocks and second sub-blocks different from each other, the second sub-blocks including free pages only; and a controller configured to erase the flash memory in units of the sub-blocks, and in a garbage collection operation, the controller is configured to copy data of a valid page of the first sub-blocks to at least one of the second sub-blocks.

Abstract: Disclosed are a MIMO communication system and a method of controlling the same.

Abstract: A technology for inter-cell interference control is provided. In one general aspect, the inter-cell interference may be controlled by resource allocation scheduling or power management. A cell may be divided into a plurality of regions. A constant available resource band and a selectively available band are allocated to each region. Each of the allocated resource bands is assigned with an interference characteristic. The resource allocation scheduling and the power management are performed according to the resources allocated to the respective regions and the interference characteristics assigned to the respective resources.

Abstract: Provided are a method for preparing grapheme from an organic material using a radiation technique, and graphene prepared using the same, and more particularly, a method of preparing graphene by dissolving an organic material such as polymer, oligomer, or the like, in a solvent to prepare an organic material solution, applying the prepared solution to an upper portion of a substrate to form an organic thin film, introducing a cross-link structure into the organic thin film through irradiation with radiation, and then performing a carbonization process, and graphene prepared using the same. With a method of preparing graphene from an organic material using a radiation technique, and graphene prepared using the same according to the present invention, expensive metal catalyst and substrate, oxidation and reduction processes, and a delicate process control may not be required as compared to the existing method.

Abstract: Radio protocol for a next generation mobile communication system is disclosed including a radio link control layer for connecting to an upper layer through a service access point provided in advance and for connecting to a lower layer through a plurality of logic channels provided in advance The radio link control layer includes at least one radio link control entity for transmission/reception of data to/from up-link or down-link according to a form of a data transmission mode.

Abstract: A method for formatting a signal in a mobile communication system by appending a plurality of medium access control headers to a plurality of medium access control-service data units for data transfer between a mobile station and network in the mobile communication system. If the service data units have the same characteristics, a medium access control-protocol data unit is formed by successively coupling the service data units to any one of the medium access control headers. If the service data units have different characteristics, the protocol data unit is formed by sequentially coupling each of the service data units and each of the medium access control headers. The formed protocol data unit is then transformed into a transport block with a predetermined size.

Abstract: A method for formatting a signal in a mobile communication system by appending a plurality of medium access control headers to a plurality of medium access control-service data units for data transfer between a mobile station and network in the mobile communication system. If the service data units have the same characteristics, a medium access control-protocol data unit is formed by successively coupling the service data units to any one of the medium access control headers. If the service data units have different characteristics, the protocol data unit is formed by sequentially coupling each of the service data units and each of the medium access control headers. The formed protocol data unit is then transformed into a transport block with a predetermined size.

Abstract: A method for formatting a signal in a mobile communication system by appending a plurality of medium access control headers to a plurality of medium access control-service data units for data transfer between a mobile station and network in the mobile communication system. If the service data units have the same characteristics, a medium access control-protocol data unit is formed by successively coupling the service data units to any one of the medium access control headers. If the service data units have different characteristics, the protocol data unit is formed by sequentially coupling each of the service data units and each of the medium access control headers. The formed protocol data unit is then transformed into a transport block with a predetermined size.