According to the advantages of chaotic analog sequences and chaotic binary sequences, this paper proposes a method generating chaotic binary spread-spectrum sequence by multilevel quantifying. This paper proved that even correlation and odd correlation between such sequences of length N are all Gaussian distributed with mean 0 and variance N, the even of mean-square cross-correlation is N, and ...

By the advent of the 20th century, psychologists presented different learning theories; to the extent that one should consider this century as the time of prosperity and evolution of learning theories. Before 1950s, it was generally believed that learning was due to the impact of external stimulus, but from the 1950s onwards, researchers were challenged and conducted a series of studies that sh...

By the advent of the 20th century, psychologists presented different learning theories; to the extent that one should consider this century as the time of prosperity and evolution of learning theories. Before 1950s, it was generally believed that learning was due to the impact of external stimulus, but from the 1950s onwards, researchers were challenged and conducted a series of studies that sh...

This article presents an experimental investigation on effects of morphology of nanoparticles on the viscosity nanofluids (NFs). Water and ethylene glycol were used as base fluids. A two step method was used for preparation of NFs. SiO2 nanoparticles, CNT and graphene nano sheets were dispersed in the base fluids separately with the volume fraction ranging from 0.05% to 1.5%. Stability of the n...