Time filter

Source Type

Baku, Azerbaijan

Iranifam M.,Azerbaijan University | Zarei M.,University of Tabriz | Khataee A.R.,University of Tabriz
Journal of Electroanalytical Chemistry | Year: 2011

The advanced oxidation processes (AOPs), which can produce oxidizing hydroxyl radicals (OH) have been proven to be an efficient method for degradation of the dyes. In this work, the decolorization of a dye solution containing C.I. Basic Yellow 28 (BY28) was performed by photoelectro-Fenton (PEF) combined with photocatalytic process. Carbon nanotube- polytetrafluoroethylene (CNT-PTFE) electrode was used as cathode. The investigated photocatalyst was ZnO nanoparticles having specific surface area (BET) 32.23 m2/g, and mean crystal size 15 nm immobilized on glass plates. A comparison of ultraviolet-C (UV-C), Electro-Fenton (EF), UV/ZnO, PEF and PEF/ZnO processes for decolorization of BY28 solution was performed. Results revealed that color removal efficiency follows the decreasing order: PEF/ZnO > PEF > UV/ZnO > EF > UV-C. The influence of the basic operational parameters including initial dye concentration, applied current, initial pH of the solution, initial Fe3+ concentration and kind of UV light on the decolorization efficiency of BY28 was studied. The mineralization of the dye was investigated by total organic carbon (TOC) measurements that showed 94.7% mineralization of 20 mg/l dye at 6 h using PEF/ZnO process. Furthermore, identity of the produced intermediates in the course of mineralization was assessed exploiting gas chromatography-mass spectrometry (GC-MS) analysis. © 2011 Elsevier B.V. All rights reserved. Source

Mukhtarov F.,Azerbaijan University | Fox S.,Free University of Berlin | Mukhamedova N.,International Water Management Institute Central Asia | Wegerich K.,International Water Management Institute Central Asia
Environmental Science and Policy | Year: 2015

Institutional design for water governance assumes the possibility of intentional introduction of policy innovations into the new contexts or amending existing institutions. Such institutional design has been common in the water sector and examples include participatory irrigation management, integrated water resources management plans and water privatization programmes. With increasing application of institutional design across various political, socio-economic and cultural settings, the importance of the context is increasingly accepted. The key question is therefore how to reconcile institutional design and contextual variability. Based on our research on the introduction of water user associations in parts of Turkey, Azerbaijan and Uzbekistan, we conclude that a top-down institutional design implemented nation-wide and not involving multiple stakeholders and engaging their views, is doomed to failure. As an alternative, we offer interactive institutional design, which is based on collaborative approaches to institutional design and treats design as works of assemblage. © 2014 Elsevier Ltd. Source

Akbarpour M.R.,Azerbaijan University | Salahi E.,Iranian Materials and Energy Research Center
Acta Physica Polonica A | Year: 2015

In this paper, the mechanical milling process for various durations was used to generate a homogeneous distribution of 1 wt.% carbon nanotube within Cu powder. Effects of milling time on morphology, microstructure, and microhardness of the powder were studied. The results showed that work hardened Cu-carbon nanotube nanocomposite powder with nanosized grains can be fabricated by the mechanical milling of the elemental materials. The addition of carbon nanotubes accelerated the morphological and microstructural evolution during the mechanical milling and influenced the compressibility of the powder. The compressibility behavior of the powder was analyzed using analytical models and used to estimate the strength of the powder. The nanocomposite compacts were sintered in vacuum and showed the maximum relative density of ≈91% at optimum condition. Source

Aliyev N.A.,Central Mental Clinic for Outpatients of Baku City | Aliyev Z.N.,Azerbaijan University
Journal of Clinical Psychopharmacology | Year: 2011

Objective: Depersonalization disorders (DPDs) are highly prevalent in population. However, the effect of lamotrigine on outpatients with DPD without psychiatric comorbidity has not been studied in a double-blind placebo-controlled design. Method: Eighty patients (all men) were washed out from all medications. Each patient was randomized either to receive lamotrigine (40 patients) for 12 weeks or matched on placebo (40 patients) in a double-blind manner. Eligible participants, in addition to meeting the criteria for DPD from Diagnostic and Statistical Manual of Mental Disorders, 4th Edition, Text Revision, were required to be between 18 and 65 years. Response was defined as a 50% reduction in the Cambridge Depersonalization Scale. Response effects with lamotrigine and placebo were compared by using analysis of variance and χ tests. Six patients did not return for at least 1 subsequent assessment, and 74 patients dropped out (36 taking lamotrigine and 38 taking placebo) in the valuables study group. Results: Of the 36 lamotrigine-treated participants, 26 responded by 12 weeks versus 6 of the 38 placebo-treated participants (P < 0.001). The most common and problematic adverse effect in the lamotrigine group was rash. Conclusions: The authors believe this to be the first double-blind placebo-controlled randomization study to test the efficacy of lamotrigine in the management of outpatients with DPDs. These need to be replicated in a larger study group. Copyright © 2011 by Lippincott Williams & Wilkins. Source

Gardashova L.A.,Azerbaijan University
EasternEuropean Journal of Enterprise Technologies | Year: 2016

Job satisfaction has been a popular topic in research for many decades. The interest in this variable has spanned academic fields that have been broached by psychologists, management, and, more recently, economists. The present study is devoted to evaluating overall job satisfaction by using a fuzzy aggregation and a possibility measure. Many studies have been published in the area of evaluating job satisfaction. However, their methods are insufficient as they are based only on a statistical method. Therefore, perceptual data rather than numbers have been specified in this study concerning the essentials and the basic factors of job satisfaction, including such parameters as activity, independence, variety, status, supervision-human resource, supervision-technical, moral values, security, social service, authority, ability, company policies and practices, compensation, advancement, responsibility, creativity, working conditions, co-workers, recognition, and achievement. It has been proven that information determined by perception can be processed by a more adequate method, e. g., by using a fuzzy logic theory and a possibility measure. © L. Gardashova, 2016. Source

Discover hidden collaborations