Abstract: A device for optimizing and/or improving a simulator parameter of a semiconductor device is provided. The device comprises a memory configured to store an evolution pool, and an input tensor-score pair, and a processor configured to sample a generator network in the evolution pool, initiate a critic network to train the sampled generator network, generate an input tensor from the trained generator network, initiate a simulator to perform a black box operation on the input tensor and to output a score as a result of the operation, and store the input tensor and the score in the memory as a input tensor-score pair, store information used in the black box operation in the evolution pool when the output score is greater than a minimum score, sort the stored information, and update the evolution pool such that only a preset number of information is left in the evolution pool.

Abstract: A device for generating a torsional electromagnetic wave and an electric power system employing the same are disclosed. In accordance with the present invention, since the device for generating the torsional electromagnetic wave is electrically isolated from a power source unit providing a power source to a load, the device can be used regardless of the power supply system such as a single-phase electric system and a tri-phase electric system, and may be reduce power consumptions of devices using an induction motor such as an air conditioner and a refrigerator.

Abstract: An apparatus and a method for improving a power efficiency are disclosed. In accordance with the present invention, since the apparatus for improving a torsional electromagnetic wave is electrically isolated from a power source unit providing a power source to a load, the apparatus can be used regardless of the power supply system such as a single-phase electric system and a tri-phase electric system, and may be reduce power consumptions of devices using an induction motor such as an air conditioner and a refrigerator.