University of Tabriz

About: University of Tabriz is a education organization based out in Tabriz, Iran. It is known for research contribution in the topics: Population & Nanocomposite. The organization has 12141 authors who have published 20976 publications receiving 313982 citations.

Optical solitons with Biswas-Milovic equation for Kerr law nonlinearity

Abstract: This paper presents the one-soliton solution to the Biswas-Milovic equation with Kerr law nonlinearity. This paper studies the perturbed Biswas-Milovic equation by the aid of the Exp-function method. By means of the Exp-function method, we report further exact travelling wave solutions, in a concise form, to the Biswas-Milovic equation which admits physical significance in applications. Not only solitary and periodic waves but also hyperbolic solutions are observed.

Photocatalytic removal of C.I. Basic Red 46 on immobilized TiO2 nanoparticles: artificial neural network modelling.

Abstract: C.I. Basic Red 46, commonly used as a textile dye, was photocatalytically removed using supported TiO2 nanoparticles irradiated by a 30 W UV‐C lamp in a batch reactor. The investigated photocatalyst was industrial Degussa P25 (crystallite mean size 21 nm) immobilized on glass beads by a heat attachment method. The catalyst was characterized by XRD, SEM, TEM and BET techniques. The process of the dye decolorization in the presence of TiO2 nanoparticles was experimentally studied through changing the initial dye concentration, UV light intensity and initial pH. The influence of inorganic anions such as chloride, sulphate, bicarbonate, carbonate and phosphate on the photocatalytic decolorization of BR46 was investigated. The decolorization of BR46 follows the pseudo‐first‐order kinetic according to the Langmuir–Hinshelwood model (k 1 = 0.273 mg L−1min−1, 2 = 0.313 (mg L−1)−1). The efficiency parameters such as apparent quantum yield and electrical energy per order (EEO) were estimated. An artificial neural n...

Age, acquired immunity and the risk of visceral leishmaniasis : a prospective study in Iran

Abstract: In order to investigate the phenomenon of age-related immunity to visceral leishmaniasis, a 1 year prospective survey was carried out on 5671 people in a Leishmania infantum focus in north-west Iran. The average incidence rate of infection since 1985 was 2.8%/year with all ages equally at risk. One in 13 infections in children led to visceral leishmaniasis (VL), and this ratio decreased significantly with age. Seroprevalence also dropped rapidly with age, suggesting that the same process may affect both clinical outcome and the humoral immune responses. Cell-mediated immunity was associated with a reduction in the seroconversion rate and an increase in the serorecovery rate. Even amongst people with no detectable cell-mediated immunity to Leishmania, the seroconversion rate decreased and the serorecovery rate increased with age. All current VL patients had a negative leishmanin skin test response. Hence, adults may develop protection against L. infantum through 2 processes, 1 dependent and 1 independent of acquired cell-mediated immunity.