Abstract: A washing machine may include a storage tank to store carbon dioxide; a tub to wash laundry using the carbon dioxide; a distillation tub to separate carbon dioxide discharged from the tub and foreign substances contained in the carbon dioxide; a compressor to compress the carbon dioxide discharged from the tub and move the carbon dioxide to the storage tank; a rotatable drum inside the tub; a driving device to drive rotation of a rotatable shaft connected to the rotatable drum to rotate the rotatable drum; a pipe configured to pass inside of the tub to exchange heat of the compressed carbon dioxide with the tub; and a blade protruding from the rotatable shaft so that the blade is rotated by rotation of the rotatable shaft to circulate air inside the tub to spread the heat of the compressed carbon dioxide emitted from the pipe.

Abstract: A washing machine including a washing tub to wash laundry carbon dioxide; first and second storage tanks to store carbon dioxide; a first flow path connecting a compressor and the first storage tank; a second flow path connecting the compressor and the second storage tank; a first valve to open and close the first flow path; a second valve to open and close the second flow path; and a controller configured to, upon completion of a laundry washing operation, operate the compressor to compress carbon dioxide received from the washing tub, open the first valve to move the compressed carbon dioxide from the compressor along the first flow path to the first storage tank, and, based on pressure in the washing tub, close the first valve and open the second valve to move the compressed carbon dioxide from the compressor along the second flow path to the second storage tank.

Abstract: An identifier generation system includes a certification server that generates a certificate, and an electronic device that receives the certificate from the certification server. The electronic device includes a read-only memory (ROM) that applies a secret value and a 0-th layer identifier to a message authentication code to generate a unique identifier, a boot loader layer that generates asymmetric keys and generates an asymmetric key certificate corresponding to the asymmetric keys, and a firmware layer that stores the asymmetric key certificate and transmits and receives the asymmetric keys. The asymmetric keys generated by the boot loader layer include one or more unique asymmetric keys that are immutable when the electronic device is updated, and one or more variable asymmetric keys that vary when the electronic device is updated.

Abstract: Provided is a storage system. When a user registration request for a new user is received, the storage system is configured to allocate a user storage space for the new user in a plurality of storage devices, and, when a user activation request for the new user is received, the storage system is configured to generate user identification information regarding the new user, based on user credential information of the new user included in the user activation request, allocate a user area for the new user in the memory, and store the user identification information regarding the new user in the user area for the new user.

Abstract: Provided are storage devices, methods of operating a storage controller, and universal flash storage (UFS) systems. The storage device includes a memory group configured to store unique device secret (UDS) data including a UDS, and pre-installed device secret (PDS) data including a PDS, and a processor configured to receive a first endorsement generated based on the PDS and a first firmware image, perform a first integrity check for the first firmware image based on the PDS of the PDS data, the first firmware image, and the first endorsement, and generate a second endorsement based on the UDS and the first firmware image in response to a pass result of the first integrity check.

Abstract: A system includes a storage device, a first device, and a second device. The first device stores a first secret key and a first public key. The second device stores a first key and a second key and receives the first public key, generates a first ciphertext for an updated software image and the second key, based on the first key, and generates a second ciphertext for the first ciphertext and the second key, based on the first public key. The first device obtains the first ciphertext and the second key by decrypting the second ciphertext and provides the first ciphertext and the second key to the storage device. The storage device obtains the updated software image and the second key by decrypting the first ciphertext. The first device provisions, based on the second key, a certificate for a unique key of the storage device into the storage device.

Abstract: A method of updating a certificate for device identification of at least one example embodiment includes generating a device identifier comprising unique information of the device, generating a device identity (ID) certificate signing request (CSR) based on the device identifier, updating the bootloader, the updating including updating a certificate of the device based on the device ID CSR using firmware of the device in response to a request of a host device, and in response to the bootloader being changed, authenticating the updating of the bootloader based on a second certificate generated by an original equipment manufacturer (OEM) of the device in response to authentication of the bootloader failing based on a first certificate generated by a manufacturer of the device.

Abstract: A booting system includes a firmware release server, an electronic device configured to execute a boot loader and first firmware distributed from the firmware release server, the electronic device including at least one processor, a first storage unit configured to store a secret value shared with the firmware release server, a read-only memory (ROM) configured to store a ROM code executable in booting, a second storage unit configured to store the boot loader and the first firmware, where the ROM code, when executed, causes the at least one processor to perform a verification operation on the boot loader based on the secret value and a first endorsement image received from the firmware release server, and where the boot loader is configured to perform a verification operation on the first firmware based on a second endorsement image received from the firmware release server.

Abstract: Disclosed is a non-transitory computer readable medium storing a computer program, wherein the computer program includes instructions to perform following steps for data processing when the computer program is executed by one or more processors, the steps including: recognizing at least one continuous section from each raw data subset; determining at least one serialization point, based on a start point and an end point of each of the at least one continuous section for each of the raw data subset; and generating a training data set by generating serialized training data, based on the at least one serialization point.

Abstract: A cleaner according to the present disclosure includes: a mop module which includes a pair of spin mops that contacts a floor while rotating clockwise or counterclockwise when viewed from a top and is left-right symmetric with a virtual central vertical plane; a collection module which includes at least one collection unit that collects foreign substances from the floor at a position spaced apart from the mop module in a forward and backward direction, forms a collection space which stores the collected foreign substances, and is left-right symmetric with respect to the central vertical plane; and a body that connects the mop module and the collection module.

Abstract: A transition metal-based heterogeneous carbonylation reaction catalyst has an excellent catalytic activity and selectivity in the carbonylation reaction and is easily separated from a product, by crosslinking polymerizing a transition metal-based homogeneous catalyst unit through a Friedel-Craft reaction. The catalyst may be used in a method for preparing lactone. The transition metal-based heterogeneous carbonylation reaction catalyst allows to produce lactone or succinic anhydride with an epoxide compound while showing a high selectivity, and can be applied in industrial very usefully due to easy separation from the product and thus reusing thereof.

Abstract: According to an embodiment of the present disclosure for solving the aforementioned problem, disclosed is a computer program stored in a computer-readable storage medium executable by one or more processors, in which when the computer program is executed by one or more processors of a computer device, the computer program allows the one or more processors to perform the following operations for data processing, and the operations may include: an operation of generating a plurality of transformed data based on each of a plurality of data included in a data set; an operation of generating a test data set based on the plurality of data and the plurality of transformed data; and an operation of testing the performance of the model by calculating the test data set by using the model.

Abstract: A method of controlling a moving robot is provided. The method of controlling a moving robot includes the steps of: (a) performing a basic motion of the moving robot which moves on a rotating mop; (b) measuring the slip rate of the moving robot; and (c) controlling the travel of the moving robot.

Abstract: Disclosed is a cleaner capable of autonomously traveling while performing a mopping task, the cleaner including: a body which defines an exterior appearance of the cleaner; at least one mop module which has at least one mop provided in contact with a floor, and which supports the body against the floor; and a tilt information acquisition unit configured to acquire tilt information of the body in relation to the floor. At least one specific part may comprise the at least one mop, may be a whole or part of the at least one mop module, and may be defined such that the at least one specific part is provided detachable from other parts of the cleaner except for the at least one specific part and that the body tilts in relation to the floor due to gravity while the at least one specific part is separated from the other parts.

Abstract: The present disclosure relates controlling a robot cleaner that moves based on a rotation of a spin mop. The controlling the robot cleaner includes determining a control command; operating the spin mop and performing a reference motion by the robot cleaner; detecting a movement of the robot cleaner which performs a reference motion by a motion detection sensor; and controlling travel of the robot cleaner to achieve the control command.

Abstract: According to an embodiment of the present disclosure for solving the aforementioned problem, disclosed is a computer program stored in a computer-readable storage medium executable by one or more processors, in which when the computer program is executed by one or more processors of a computer device, the computer program allows the one or more processors to perform the following operations for data processing, and the operations may include: an operation of generating a plurality of transformed data based on each of a plurality of data included in a data set; an operation of generating a test data set based on the plurality of data and the plurality of transformed data; and an operation of testing the performance of the model by calculating the test data set by using the model.

Abstract: A robot cleaner includes a main body, a moving unit for moving the main body, a cleaning module capable of being brought into contact with a floor surface at at least part of a lower surface thereof, and a module drive unit for controlling an angle of inclination of the lower surface of the cleaning module with respect to the floor surface.

Abstract: According to an embodiment of the present disclosure for solving the aforementioned problem, disclosed is a computer program stored in a computer-readable storage medium executable by one or more processors, in which when the computer program is executed by one or more processors of a computer device, the computer program allows the one or more processors to perform the following operations for data processing, and the operations may include: an operation of generating a plurality of transformed data based on each of a plurality of data included in a data set; an operation of generating a test data set based on the plurality of data and the plurality of transformed data; and an operation of testing the performance of the model by calculating the test data set by using the model.

Abstract: Disclosed is a non-transitory computer readable medium storing a computer program, wherein the computer program includes instructions to perform following steps for data processing when the computer program is executed by one or more processors, the steps including: recognizing at least one continuous section from each raw data subset; determining at least one serialization point, based on a start point and an end point of each of the at least one continuous section for each of the raw data subset; and generating a training data set by generating serialized training data, based on the at least one serialization point.

Abstract: A cleaner includes a body forming an external appearance, and a spin-mop cleaning module configured to support the body and including at least one spin-mop provided so as to come into contact with a floor while rotating in a clockwise direction or in a counterclockwise direction when viewed from an upper side. The inclination angle of a lower surface of the spin mop is changeable relative to a horizontal plane.