Abstract: A surface plasmon enhanced light-emitting diode includes, from bottom to top, a substrate, an n-type semiconductor layer, a light-emitting layer, a p-type semiconductor layer, and a plurality of metal filler elements. The p-type semiconductor layer includes upper and lower surfaces, and the upper surface is recessed downward to form a plurality of spaced apart recesses for receiving the metal filler elements, respectively.

Abstract: A radio frequency front end circuit module for a receiver used in a digital television is disclosed. The radio frequency front end circuit module includes a switch set, a differential low noise amplifier, a filter, and a tuner. The switch set receives two differential signals. The differential low noise amplifier is electrically coupled to the switch set for amplifying the two differential signals. The filter is electrically coupled to the differential low noise amplifier for filtering out portions which are excluded in a predetermined bandwidth of the two amplified differential signals. The tuner determines how to control the switch set to select the two differential signals in the predetermined bandwidth according to the filtered differential signals. The present invention is capable of amplifying the received differential signals and rejecting noise which has the same phase as that of the received differential signals.

Abstract: A lattice reduction architecture, a lattice reduction method and a detection system thereof are proposed. The proposed architecture performs lattice reduction on channel matrices corresponding to sub-carriers and includes G processing group blocks, which receives channel matrices corresponding to the sub-carriers, and each of the first to the G-1th processing group blocks includes k processing modules respectively processing k sub-carriers, and the Gth processing group block includes j processing modules, where j<=k. In each one of the processing group blocks, at least one processing module receives an initial matrix, where the processing module includes a lattice reduction processing unit provides a reduction matrix to at least one neighboring processing module when a lattice reduction algorithm is processed on a channel matrix corresponding to its respective sub-carrier for at least iteration loops according to the channel matrix and the received initial matrix.

Abstract: A method of making longan seed extract is provided with choosing an extraction solvent; heating the extraction solvent to a first predetermined temperature; adding pulverized longan seed to the extraction solvent to prepare a solution; maintaining the solution at a second temperature for a predetermined period of time to obtain an extracted substance; filtering the extracted substance; and drying and cooling the filtered extracted substance to produce an extract.