The present study aims to investigate the of double-diffusive convection on peristaltic flow under assumption long wavelength and low Reynolds number. mathematical modelling for a two-dimensional flow, along with double diffusion in nanofluids is considered. motivation research work analyze effects thermal radiation through porous medium nonuniform channel. heat flux linear approximation employ...

s is a time-frequency transform based on the concept of short-time fourier transform and wavelet transform. the main property of this transform that separate it from the discrete short-time fourier transform is variable frequency resolution. but in this transform the change of resolution of high frequencies to low frequencies is very high. so another transform as a modified s transform is intro...