We will present a detailed investigation of intersubband transitions process in core-multi shells quantum dots. The confined wave functions and eigenenergies of electrons in quantum dots have been calculated under the effective-mass approximation by solving a three-dimensional Schrodinger equation. Excellent dependence is found between size effects, time relaxation and degenerate four wave mixi...

We will present a detailed investigation of intersubband transitions process in core-multi shells quantum dots. The confined wave functions and eigenenergies of electrons in quantum dots have been calculated under the effective-mass approximation by solving a three-dimensional Schrodinger equation. Excellent dependence is found between size effects, time relaxation and degenerate four wave mixi...

An experimental and theoretical energy and exergy analysis was conducted for a cylindrical cavity receiver employed in a parabolic dish collector. Based on simultaneous energy and exergy analysis, the receiver average wall temperature and overall heat transfer coefficient were determined. A simplified Nusselt number for Heat Transfer Fluid (HTF) through the receiver as a function of Reynolds an...

Results The mean MRI maximum diameter was 46mm (range 12-69). Three lesions showed a mass-like enhancement; one lesion showed a non mass-like enhancement. For the mass-like lesions kinetic curve assessment of initial rise showed slow enhancement in one lesion, rapid enhancement in two lesions, and medium enhancement in one lesion. Assessment of delayed enhancement showed plateau in 3 lesions an...

we will present a detailed investigation of intersubband transitions process in core-multi shells quantum dots. the confined wave functions and eigenenergies of electrons in quantum dots have been calculated under the effective-mass approximation by solving a three-dimensional schrodinger equation. excellent dependence is found between size effects, time relaxation and degenerate four wave mixi...

background: the aim of this study was to review and characterize the pattern of cns lesions in patients suffering from aids and to correlate these patterns with clinical disorders. method: the mr scan, medical records and laboratory findings of 58 aids patients were reviewed retrospectively during april 1994 to november 1997 at the olive view/ucla and shiraz medical centers, and the patterns of...