Abstract: A method and a device for operation a task in an electronic device are provided. The method for operating a task in an electronic device includes generating at least one task on a protocol layer basis based on a work to process, executing at least one task generated on a layer basis through at least one Central Processing Unit (CPU), determining whether a workload to process is changed, and changing, if the workload to process is changed, a workload of the executing of the at least one task.

Abstract: A method for operating a terminal in a wireless communication system is provided. The method includes at least one of transmitting data to and receiving data from a primary cell using a first Radio Frequency (RF) path, and, when a secondary cell is deactivated, operating a second RF path to perform searching and measurement with respect to at least one target cell at a frequency different from a frequency of the primary cell.

Abstract: A blue and green laser generation method and device adopting the same wherein the method includes the steps of pumping an electron of a first element to a first energy level by employing a first pumping energy to thereby obtain an optoacoustic energy according to a first energy absorption; and pumping an electron of a second element to a second energy level being higher than the first energy level, by employing the optoacoustic energy as a pumping source, to thereby obtain blue and green lasers having a desired wavelength according to a second energy absorption. The device has a core having a predetermined refractive index and which is doped by an element for generating light in a band of a predetermined wavelength by means of energy absorption; and a cladding layer provided around the core and which has a refractive index different from that of the core.