Abstract: A device for managing a temperature according to an embodiment of the present disclosure includes a conversion controller that estimates an indoor set temperature based on a temperature of air returned from a target zone and an operating time of a state converter, and controls a state conversion amount of the state converter by comparing the estimated indoor set temperature with the temperature of the returned air, and a heat exchanger for varying the temperature of the returned air and providing the air whose temperature is varied to the target zone.

Abstract: A swivel pad capable of automatically returning to a reference point, includes: a compression ball having top and bottom surfaces processed to be flat and having a first elastic body insertion hole; a support member configured to have one side in which an insertion groove for accommodating the compression ball is formed, and a first return space and a second elastic body insertion hole having a predetermined depth in a center of the first return space are formed below the insertion groove, and configured to have an opposite side formed with a connection portion connected to a clamp; and an elastic member having ends inserted into the first elastic body insertion hole and the second elastic body insertion hole, respectively, to support the compression ball, wherein the top surface of the compression ball compresses a workpiece to fix or move the workpiece.

Abstract: A module-based operating apparatus and method for a portable device is provided. A module-based operating apparatus and method for a portable device, in which various types of personal service contents such as a diary function, a wallet function, and a portable computing function are made into functional modules so as to install and/or detach the functional modules to/from a common bus-based slot.

Abstract: A module-based operating apparatus and method for a portable device is provided. A module-based operating apparatus and method for a portable device, in which various types of personal service contents such as a diary function, a wallet function, and a portable computing function are made into functional modules so as to install and/or detach the functional modules to/from a common bus-based slot.