Filling your diffuser with filtered or bottled water prevents damage from hard water. Keeping the diffuser away from electronics helps avoid mist damage. Essential oils labeled "for aromatherapy use" ...

Abstract: Typically, a chaotic system with quadratic terms is realized based on integral summation circuits, where however operational amplifiers and multipliers are usually overused. In this brief, a ...

Abstract: This brief is concerned with the stability of a neural network with a time-varying delay using the quadratic function negative-definiteness approach reported recently. A more general ...