The Electronic Absorption Spectra of Fatty Acid Mono-, Bi-, and Multilayers with Bivalent Metal Ions

Investigating the Longitudinal Optical Conductivity in Three-Layer Graphene Systems with Composes Mono-Bi-Bi and Bi-Mono-Bi and Bi-Bi-Mono

The longitudinal optical conductivity is the most important property for graphene-baseddevices. So investigating this property for spatially separated few-layer graphene systems analytically and numerically is the main purpose of our study. Each layer can be mono- or bi-layer graphene. The density-density correlation function has been screened by the dielectric function using the random p...

Effect of single additive bivalent metal ions on the growth of Streptomyces clavuligerus and clavulanic acid production

Metal ions are the main impurities of water and media ingredients used in fermentation processes. In this research, the effect of Ca+2, Co+2, Cu+2, Fe+2, Mg+2, Mn+2 and Zn+2 as chloride and sulfate salts was studied on the clavulanic acid production and Streptomyces clavuligerus growth. All chloride salts had negative effect on clavulanic acid production and no clavulanic acid was produced in t...

Electronic (Absorption) Spectra of 3d Transition Metal Complexes

SYNTHESIS AND ELECTRONIC ABSORPTION SPECTRA OF SOME METHOXY HALF-ANALOGUE OF MICHLER'S HYDROL BLUE

The present work comprises the synthesis of one series of diarylmethane dyes containing one or more terminal methoxy substituents together with a variable tertiary amino group. The electronic absorption spectra of the dyes have been determined. As the conjugation of the terminal nitrogen atom improves in the sequence NMez > Kairoline > Julolidine, a progressive hypsochromic shift is observed

Mono-Mono-Mono and Bi-Bi-Bi three-layer graphene systems’ optical conductivity

Investigating the longitudinal optical conductivity of graphene systems, which is the mostimportant property for opto-electronic devices, for three-layer graphene systems theoretically and numerically is the main purpose of this study. Each layer can be mono- or bi-layer graphene. Separation between layers has been denoted by d, selected to be about ten nanometers. The carrier densities i...