Abstract: A radio frequency (RF) weak magnetic field detection sensor includes a ferromagnetic core, a pickup coil disposed to surround the ferromagnetic core, a substrate that includes an opening, a core pad connected to the ferromagnetic core and a coil pad connected to the pickup coil, and an insulating tube interposed between the ferromagnetic core and the pickup coil. The insulating tube includes a bobbin around which the pickup coil is wound, and a core hole formed to pass through the bobbin and configured to accommodate the ferromagnetic core.

Abstract: An apparatus and method for transmitting and receiving magnetic field signals in a magnetic field communication system are provided. The apparatus includes a controller configured to generate a communication signal, matching units that are configured to receive the communication signal and that respectively correspond to different matching frequencies, and loop antennas that are connected to the matching units, respectively, and that are configured to convert communication signals according to the different matching frequencies into magnetic transmission signals in the form of magnetic field energy and to transmit the magnetic transmission signals.

Abstract: A method for differentiating retinal layers includes obtaining an optical coherence tomography retinal layer image of an eye to be examined and inputting it into a deep neural network, calculating probability P that each pixel is included in each layer from the inputted layer image, calculating probability P1(x,y) that a pixel is in or above (k?1)-th layer and probability P2(x,y) that the pixel is in or below k-th layer from probabilities P(x,y) that the pixel is included in each layer, calculating probability Fk?1,k(x,y) that the pixel becomes a boundary line between the (k?1)-th layer and the k-th layer from P1(x,y) and P2(x,y), obtaining a node cost Ck?1,k(x,y) of the pixel by multiplying Fk?1,k(x,y) with an image brightness change ?I at the pixel, and determining the boundary line between the (k?1)-th and k-th layers by connecting coordinates (x,y) of the pixels where Ck?1,k(x,y) calculated for each position x is the maximum.

Abstract: A hematophagous arthropod repellent composition includes 3,4-dimethoxybenzaldehyde or vanillin acetate as an effective ingredient. The repellent composition is against hematophagous arthropods which transmit diseases to animals including humans or directly cause discomfort or stress by bloodsucking. The hematophagous arthropod repellent composition not only has excellent repellency against hematophagous arthropods such as mosquitoes and ticks but also has long-lasting repellency, and thus it may be used as a hematophagous arthropod repellent for protecting animals including humans.

Abstract: A hematophagous arthropod repellent composition includes 3,4-dimethoxybenzaldehyde or vanillin acetate as an effective ingredient. The repellent composition is against hematophagous arthropods which transmit diseases to animals including humans or directly cause discomfort or stress by bloodsucking. The hematophagous arthropod repellent composition not only has excellent repellency against hematophagous arthropods such as mosquitoes and ticks but also has long-lasting repellency, and thus it may be used as a hematophagous arthropod repellent for protecting animals including humans.

Abstract: A virtual environment system and a method of operating the same are provided. The virtual environment system includes a virtual operating system (OS) unit to operate a virtual OS installed in a mobile storage medium in a host OS installed in a host computer, to attach a virtual resource included in the virtual OS to the host OS, and to perform arbitration so that a virtual process operated in the virtual OS uses the virtual resource. The system includes a user interface unit to provide a virtual desktop screen to allow a user to use the virtual process in the virtual environment provided by the virtual OS.

Abstract: An apparatus and method for managing process migration are provided. When a process of a source virtual machine is to be migrated to a target virtual machine based on a process migration request, and the source virtual machine and the target virtual machine are on the same operating system (OS), logical migration is performed by updating information included in a virtual machine information database and a namespace router table.

Abstract: Provided are an apparatus and method for providing services using a virtual operating system (OS). The apparatus classifies virtual resources into a plurality of mutually exclusive regions and manages the virtual resources based on the provides services regions. The plurality of provides services regions include a virtual region whose resources are stored in and used on an external storage, and an overlay region whose resources refer to host resources. The apparatus uses the region information for virtual resources and a list of resources accessed for each application process to manage the virtual resources.

Abstract: A method and apparatus for inputting and outputting data by using a virtualization technique are provided. The method includes generating a virtual operating system (OS) for the external device, which is connected to a host, based on OS information stored in the external device, setting a partial area of a storage of the host as virtual storage for the external device, and storing the data in the virtual storage or a memory of the external device in response to a request for inputting and outputting the data from the virtual OS.

Abstract: A method and apparatus for inputting and outputting data by using a virtualization technique are provided. The method includes generating a virtual operating system (OS) for the external device, which is connected to a host, based on OS information stored in the external device, setting a partial area of a storage of the host as virtual storage for the external device, and storing the data in the virtual storage or a memory of the external device in response to a request for inputting and outputting the data from the virtual OS.

Abstract: A method and apparatus for inputting and outputting data by using a virtualization technique are provided. The method includes generating a virtual operating system (OS) for the external device, which is connected to a host, based on OS information stored in the external device, setting a partial area of a storage of the host as virtual storage for the external device, and storing the data in the virtual storage or a memory of the external device in response to a request for inputting and outputting the data from the virtual OS.

Abstract: A system for providing resources of a cloud infrastructure is provided. In the system, a client terminal may dynamically span its storage to heterogeneous cloud storages as necessary. A client determines, when receiving a file access request from an application, whether to process the file access request as a local file access request for access to a local storage of the client or as a cloud file access request for access to a cloud storage connected through the Internet. A brokerage server receives the file access request and supports the client by brokering a connection to a cloud infrastructure in response to the file access request.

Abstract: An apparatus and method for managing process migration are provided. When a process of a source virtual machine is to be migrated to a target virtual machine based on a process migration request, and the source virtual machine and the target virtual machine are on the same operating system (OS), logical migration is performed by updating information included in a virtual machine information database and a namespace router table.

Abstract: Provided are an apparatus and method for providing services using a virtual operating system (OS). The apparatus classifies virtual resources into a plurality of mutually exclusive regions and manages the virtual resources based on the provides services regions. The plurality of provides services regions include a virtual region whose resources are stored in and used on an external storage, and an overlay region whose resources refer to host resources. The apparatus uses the region information for virtual resources and a list of resources accessed for each application process to manage the virtual resources.

Abstract: Provided are an apparatus and method for providing services using a virtual operating system (OS). The apparatus classifies virtual resources into a plurality of mutually exclusive regions and manages the virtual resources based on the provides services regions. The plurality of provides services regions include a virtual region whose resources are stored in and used on an external storage, and an overlay region whose resources refer to host resources. The apparatus uses the region information for virtual resources and a list of resources accessed for each application process to manage the virtual resources.

Abstract: An apparatus and method for managing process migration are provided. When a process of a source virtual machine is to be migrated to a target virtual machine based on a process migration request, and the source virtual machine and the target virtual machine are on the same operating system (OS), logical migration is performed by updating information included in a virtual machine information database and a namespace router table.

Abstract: A method and apparatus to restore a system using virtualization, the method including: if a system restoration at a target restoration time point from among at least one restoration time points is requested, generating a virtualization layer; if a use of a system is requested by an application layer, accessing the target restoration time point using the virtualization layer; and performing a system restoration at the accessed target restoration time point.

Abstract: A system for providing resources of a cloud infrastructure is provided. In the system, a client terminal may dynamically span its storage to heterogeneous cloud storages as necessary. A client determines, when receiving a file access request from an application, whether to process the file access request as a local file access request for access to a local storage of the client or as a cloud file access request for access to a cloud storage connected through the Internet. A brokerage server receives the file access request and supports the client by brokering a connection to a cloud infrastructure in response to the file access request.

Abstract: An apparatus and method for managing process migration are provided. When a process of a source virtual machine is to be migrated to a target virtual machine based on a process migration request, and the source virtual machine and the target virtual machine are on the same operating system (OS), logical migration is performed by updating information included in a virtual machine information database and a namespace router table.

Abstract: Provided are an apparatus and method for providing services using a virtual operating system (OS). The apparatus classifies virtual resources into a plurality of mutually exclusive regions and manages the virtual resources based on the provides services regions. The plurality of provides services regions include a virtual region whose resources are stored in and used on an external storage, and an overlay region whose resources refer to host resources. The apparatus uses the region information for virtual resources and a list of resources accessed for each application process to manage the virtual resources.