Numerous studies conducted in laboratory animals and humans indicate that angiotensin converting enzyme inhibitors reinforce memory and learning. In this paper we study the effect of injection of enalapril into the cerebral ventricles on spatial memory of white mice in the double- y maze, following the induction of an Alzheimer- like amnestic model with scopolamine. To estimate the duration o...

A mixed signal with several unknown modes is common in the industry and hard to decompose. Variational Mode Decomposition (VMD) was proposed decompose a into amplitude-modulated 2014, which overcame limitations of Empirical (EMD), such as sensitivity noise sampling. We propose an improved VMD, simplified iVMD. In new algorithm, we further study improve mathematical model VMD adapt decomposition...