Abstract: The present invention provides a method for producing a hetero-type monodisperse polyethylene glycol, which includes a step (A) of carrying out a nucleophilic substitution reaction between a compound of the formula (2) and a compound of the formula (3) so as to satisfy the requirement of the expression (F1) to obtain a compound of the formula (4), a step (B) of carrying out the Michaels addition reaction of a compound of the formula (5) to the compound of the formula (4) at a temperature condition of 10° C.

Abstract: An operation system for a vehicle includes a memory, and a processor coupled to the memory and configured to acquire a first signal indicating whether a seat in the vehicle is facing forward or rearward, and generate a display screen by arranging at least two operation elements in a longitudinal direction of the vehicle. The display screen is displayed on an operation panel installed in the vehicle. The processor reverses the arrangement of the at least two operation elements in the longitudinal direction of the vehicle in accordance with the first signal.

Abstract: A tracking device for tracking a target object includes an interface connectable to a camera configured to acquire an image and determine a location of the object within the image and a distance therefrom, a memory that stores first coordinates that indicate a location of the camera with respect to a reference point in the facility, and a first direction towards which the camera faces, and a processor configured to calculate a second direction from the camera to the object based on the first direction and the location of the object, based on the second direction and the distance, calculate second coordinates indicating a location of the target object with respect to the location of the camera, based on the first and second coordinates, calculate third coordinates indicating a location of the target object with respect to the reference point, and store the calculated third coordinates in the memory.

Abstract: A time management system includes a terminal, a server, and a calculation unit. The terminal moves with the vehicle using the berth. The server connects the terminal via a network. The calculation unit calculates an estimated arrival time when the vehicle moving arrives at the berth based on position information. The server allocates a usage time of using the berth by the vehicle arriving at the berth at the estimated arrival time based on the estimated arrival time calculated by the calculation unit and a vacancy situation of the berth, and notifies the terminal moving together with the vehicle of the usage time allocated by the allocation unit. The terminal includes an output unit that the usage time notified from the server.

Abstract: A tracking device includes an interface connectable to cameras, each acquiring an image and determining an object location within the image, a distance therefrom, and a time; a memory storing first coordinates indicating a camera location with respect to a reference point in a facility, and a first direction towards which each camera faces; and a processor, upon receipt of the location, the distance, and the time, calculating a second direction from the camera to the object, calculating second coordinates indicating an object location with respect to the camera location, calculating and storing with the time third coordinates indicating an object location with respect to the reference point. When locations calculated from the images acquired by the first and second cameras are associated with the same time, the processor calculates a distance therebetween, and when the distance falls within a predetermined range, recalculates the object location based on the locations.

Abstract: To provide a memory protection circuit and a memory protection method suitable for quick data transfer between a plurality of virtual machines via a common memory, according to an embodiment, a memory protection circuit includes a first ID storing register that stores therein an ID of any of a plurality of virtual machines managed by a hypervisor, an access determination circuit that permits the virtual machine having the ID stored in the first ID storing register to access a memory, a second ID storing register that stores therein an ID of any of the virtual machines, and an ID update control circuit that permits the virtual machine having the ID stored in the second ID storing register to rewrite the ID stored in the first ID storing register.

Abstract: A reading device includes a scanner, a mode changeover switch, and a processor. The scanner is configured to read a merchandise code from a code symbol attached to a merchandise. The scanner is operable in a registration mode and a cancellation mode. The mode changeover switch is configured to input an instruction for switching operation of the scanner between the registration mode and the cancellation mode. The processor configured to output mode information indicating whether the scanner is operating in the registration mode or the cancellation mode. The processor is also configured to output code information indicating the merchandise code read by the scanner.

Abstract: A commodity sales processing system includes a handheld wireless terminal including a display, a shopping cart including a code reader and a terminal holder, and a server system. The terminal holder includes a charging connector. The server system is configured to store a first ID of the handheld wireless terminal that is received from the handheld wireless terminal or the code reader, in association with a second ID of the code reader that is received from the handheld wireless terminal or the code reader, receive from the code reader a commodity code read thereby and store the received commodity code in a shopping list associated with the second ID, and generate image data indicating the shopping list and cause an image based on the generated image data to be displayed on the display of the handheld wireless terminal only when the handheld wireless terminal is connected to the charging connector.

Abstract: To provide a memory protection circuit and a memory protection method suitable for quick data transfer between a plurality of virtual machines via a common memory, according to an embodiment, a memory protection circuit includes a first ID storing register that stores therein an ID of any of a plurality of virtual machines managed by a hypervisor, an access determination circuit that permits the virtual machine having the ID stored in the first ID storing register to access a memory, a second ID storing register that stores therein an ID of any of the virtual machines, and an ID update control circuit that permits the virtual machine having the ID stored in the second ID storing register to rewrite the ID stored in the first ID storing register.

Abstract: A commodity sales processing system in an embodiment includes a first server, configured to connect to a customer information terminal via a first network, and a second server, configured to connect to a store code reading apparatus. The first server associates a first unique code for the customer information terminal with a second unique code for the store code reading apparatus. The second server registers products in a sales transaction associated with the second unique code. The products are identified by a commodity code read by the store code reading apparatus and then received by the second server via the second network. The first server is configured to transmit, via the first network, product information for the products registered in the sales transaction to the customer information terminal associated with the first unique code.

Abstract: According to one embodiment, a semiconductor memory device includes a first stacked body in which a plurality of first conductive layers are stacked at intervals in a first direction above a semiconductor substrate; a second stacked body in which a plurality of second conductive layers are stacked at intervals in the first direction above the semiconductor substrate; and a first slit extending in a second direction perpendicular to the first direction, the first slit isolating the first stacked body and the second stacked body in a third direction perpendicular to the first and second directions.

Abstract: An operation system for a vehicle includes a memory, and a processor coupled to the memory and configured to acquire a first signal indicating whether a seat in the vehicle is facing forward or rearward, and generate a display screen by arranging at least two operation elements in a longitudinal direction of the vehicle. The display screen is displayed on an operation panel installed in the vehicle. The processor reverses the arrangement of the at least two operation elements in the longitudinal direction of the vehicle in accordance with the first signal.

Abstract: A payment device includes a plurality of antennas and a payment unit. The payment unit performs a payment process for payment in which a payment service associated with a respective one of the plurality of antennas is used in accordance with start of wireless communication for the payment process via the respective one of the plurality of antennas.

Abstract: A tracking device includes an interface connectable to cameras, each acquiring an image and determining an object location within the image, a distance therefrom, and a time; a memory storing first coordinates indicating a camera location with respect to a reference point in a facility, and a first direction towards which each camera faces; and a processor, upon receipt of the location, the distance, and the time, calculating a second direction from the camera to the object, calculating second coordinates indicating an object location with respect to the camera location, calculating and storing with the time third coordinates indicating an object location with respect to the reference point. When locations calculated from the images acquired by the first and second cameras are associated with the same time, the processor calculates a distance therebetween, and when the distance falls within a predetermined range, recalculates the object location based on the locations.

Abstract: A tracking device for tracking a target object includes an interface connectable to a camera configured to acquire an image and determine a location of the object within the image and a distance therefrom, a memory that stores first coordinates that indicate a location of the camera with respect to a reference point in the facility, and a first direction towards which the camera faces, and a processor configured to calculate a second direction from the camera to the object based on the first direction and the location of the object, based on the second direction and the distance, calculate second coordinates indicating a location of the target object with respect to the location of the camera, based on the first and second coordinates, calculate third coordinates indicating a location of the target object with respect to the reference point, and store the calculated third coordinates in the memory.

Abstract: A payment device includes a plurality of antennas and a payment unit. The payment unit performs a payment process for payment in which a payment service associated with a respective one of the plurality of antennas is used in accordance with start of wireless communication for the payment process via the respective one of the plurality of antennas.

Abstract: To provide a memory protection circuit and a memory protection method suitable for quick data transfer between a plurality of virtual machines via a common memory, according to an embodiment, a memory protection circuit includes a first ID storing register that stores therein an ID of any of a plurality of virtual machines managed by a hypervisor, an access determination circuit that permits the virtual machine having the ID stored in the first ID storing register to access a memory, a second ID storing register that stores therein an ID of any of the virtual machines, and an ID update control circuit that permits the virtual machine having the ID stored in the second ID storing register to rewrite the ID stored in the first ID storing register.

Abstract: A topography simulation apparatus includes a processor and a memory connected to the processor. The memory stores instructions executable by the processor to set topographies of a material at N times T1 to TN (N is an integer of two or more) within a calculation region. The memory further stores instructions executable by the processor to develop the topographies of the material at the times T1 to TN over time independently, calculate first to N-th values respectively representing a change in a topography of the material from the times T1 to TN to times T1? to TN?, and calculate a topography of the material at time TN+1, based on the first to N-th values.

Abstract: A method for producing polyethylene glycol having a terminal carboxyl group including oxidizing polyethylene glycol represented by formula (I): CH3O(CH2CH2O)n(CH2)m—CHO with potassium peroxymonosulfate in water whose pH is adjusted to be from 6 to 8 with at least one selected from a carbonate, a phosphate, a citrate and an acetate at 5 to 40° C. to produce polyethylene glycol represented by formula (II): CH3O(CH2CH2O)n(CH2)m—COOH, wherein n is a number from 10 to 1,100, and m is 2 or 3.