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A facile and one-pot electrochemical method for the synthesis of a new anthraquinonethioether

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Chinese Chemical Letters 2012年第5期23卷 553-556页

作者： Davood Nematollahi Bayan moradi Fahimeh Varmaghani Faculty of Chemistry Bu-Ali-Sina UniversityHamedan 65178-38683I.R.Iran Department of Chemistry Faculty of ScienceArak BranchIslamic Azad UniversityArakIran

The reaction of electrochemically generated anthradiquinone as a Michael acceptor with 2-mercaptobenzothiazole and 2- mercaptobenzoxazole,as nucleophiles in ethanol/water mixtures has been studied by means of cyclic *** voltammetric data indicate that produced anthradiquinone participates in Michael addition reaction with nucleophiles and via an ECEC mechanism converts to the new anthraquinonethioether *** on an EC mechanism,the observed homogeneous rate constant of the Michael reaction of anthradiquinone with nucleophiles were estimated by comparing the experimental cyclic voltammograms with the digital simulated results.

关键词： 1 4-Dihydroxyanthraquinone 2-Mercaptobenzothiazole Electrochemical synthesis Anthraquinonethioether Cyclic voltammetry Digital simulation

Energy budget and economic analysis in conventional and organic rice production systems and organic scenarios in the transition period in Iran

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Frontiers in Energy 2012年第4期6卷 341-350页

作者： Hamed MANSOORI Parviz Rezvani MOGHADDAM Rooholla moradi Department of Agronomy Faculty of AgricultureFerdowsi University of MashhadMashhad 91779-4897Iran

Compared to conventional agriculture, organic agriculture is reported to be more efficient and effective in reducing water and soil pollution, greenhouse gases （GHGs） emission and risk of human health. In additional, field management under organic condition can be useful for increasing energy efficiency. Rice is one of the important crops which are cultivated in two forms, organic and conventional, in Iran. In order to compare the energy efficiency and economic analysis of rice production in organic and conventional systems in Iran, needed informa- tion was collected by face-to-face questionnaire in 2011 and three scenarios were designed to predict the changes of energy budget and economic analysis in the transition period that included： 25%, 50% and 75% organic management in rice production. The results showed that all energy indexes were improved in organic rice production compared to conventional condition. Higher values of benefit to cost ratio, gross and net return and lower value of total cost of production were obtained from organic rice production which indicated that the organic management of farm improved economically in compar- ison with the conventional rice production system. The shares of direct and renewable energies were increased by approach to organic management. Increase in energy efficiency and productivity was predicted for the transition period but decrease trend in economic indexes was projected for this period in all scenarios. The main reason for decreasing economic indexes in organic scenarios was that the market price of organic rice was the same as that of conventional rice in the transition period.

关键词： energy efficiency specific energy net return,Cobb-Douglas function

Kinetic study of electrochemically induced Michael reaction of1,4-dihydroxyanthraquinone with acetylacetone and benzoylacetone

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Chinese Chemical Letters 2013年第11期24卷 1008-1010页

作者： Davood Nematollahi Bayan moradi Fahimeh Varmaghani Faculty of Chemistry Bu-Ali Sina University Department of Chemistry Faculty of Science Arak Branch Islamic Azad University

The electrochemical oxidation of 1,4-dihydroxyanthraquinone has been studied in the presence of acetylacetone and benzoylacetone as nucleophiles in a mixture of ethanol/water by means of cyclic voltammetry as a diagnostic *** results indicate the participation of electrochemically produced anthraquinone in the Michael addition reaction with acetylacetone and benzoylacetone to form the corresponding new anthraquinone *** the basis of the EC mechanism,the observed homogeneous rate constants（kobs）of the reaction of anthraquinone with acetylacetone and benzoylacetone were estimated by comparing the experimental cyclic voltammograms with the digitally simulated results.

关键词： 1 4-Dihydroxyanthraquinone Cyclic voltammetry Digital simulation Acetylacetone Benzoylacetone

Effect of Partial Substitution of Ni by Cu in LaNiO_3 Perovskite Catalyst for Dry Methane Reforming

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催化学报 2012年第5期33卷 797-801页

作者： G.R.moradi F.KHOSRAVIAN M.RAHMANZADEH Catalyst Research Center Chemical Engineering DepartmentFaculty of EngineeringRazi UniversityKermanshah 67149-67346Iran

A series of ternary perovskite type oxides LaNi1-xCuxO3(x = 0.2,0.4,0.6,0.8,and 1.0) were synthesized via the sol-gel method in propionic *** substitution of Ni by Cu showed higher activities and selectivities towards syngas ***0.8Cu0.2O3 was the most active toward the CH4 and CO2 conversions,and was selective for syngas ***-programmed reduction results showed that the addition of Cu facilitates the reduction of Ni3+ to Ni0,which is the main reason for the higher performance of this catalyst.

关键词： dry reforming of methane perovskite lanthanun nickel sol-gel method

Prediction of the load-carrying capacity of reinforced concrete connections under post-earthquake fire

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2021年第6期22卷 441-466页

作者： Aydin SHISHEGARAN Mehdi moradi mohammad Ali NAGHSH Behnam KARAMI Arshia SHISHEGARAN School of Civil Engineering Iran University of Science and TechnologyTehranIran Institute of Structural Mechanics Bauhaus-Universitat WeimarWeimar 99423Germany School of Civil Engineering Isfahan UniversityIsfahanIran School of Civil Engineering Isfahan University of TechnologyIsfahanIran International Institute of Earthquake Engineering and Seismology TehranIran 不详

Finding out the most effective parameters relating to the resistance of reinforced concrete connections(RCCs)is an important topic in structural *** this study,first,a finite element(FE)model is developed for simulating the performance of RCCs under post-earthquake fire(PEF).Then surrogate models,including multiple linear regression(MLR),multiple natural logarithm(Ln)equation regression(MLn ER),gene expression programming(GEP),and an ensemble model,are used to predict the remaining load-carrying capacity of an RCC under *** statistical parameters,error terms,and a novel statistical table are used to evaluate and compare the accuracy of each surrogate *** to the results,the ratio of the longitudinal reinforcement bars of the column(RLC)has a significant effect on the resistance of an RCC under *** the value of this parameter from 1%to 8%can increase the residual load-carrying capacity of an RCC under PEF by 492.2%when the RCC is exposed to fire at a temperature of 1000°***,based on the results,the ensemble model can predict the residual load-carrying capacity with suitable accuracy.A safety factor of 1.55 should be applied to the results obtained from the ensemble model.

关键词： Reinforced concrete connection(RCC) Post-earthquake fire(PEF) Surrogate models Load-carrying capacity Gene expression programming(GEP) Ensemble model

Inhibitory Effect of Vibrio neocaledinocus sp. and Pseudoalteromonas piscicida Dual-Species Biofilms on the Corrosion of Carbon Steel

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Acta Metallurgica Sinica(English Letters) 2022年第4期35卷 551-562页

作者： Masoumeh moradi Jianlin Li Wenhui Liu Dake Xu Fuhui Wang Shenyang National Laboratory for Materials Science Northeastern UniversityShenyang 110819China Key Laboratory for Anisotrotropy and Texture of Materials(Ministry of Education) School of Materials Science and EngineeringNortheastern UniversityShenyang 110819China

Multi-species biofilms are found in various bacterial habitats and have industrial relevance. These complex bacterial communities have synergetic effects, unlike a single species. Therefore, it is critical to evaluate these complex communities as a whole. Here, the inhibitory eff ect of single-and dual-species biofilms of Vibrio neocaledinocus sp. and Pseudoalteromonas piscicida for A36 carbon steel corrosion was investigated. The results demonstrated that the synergistic interactions of the monoculture increased the overall biomass production of the dual-species biofilm, but the growth rate was reduced in the presence of the dual-species culture due to a lack of nutrients. Field emission scanning electron microscopy images also confirmed the development of biofilms—they became more homogenized via exposure time in both the mono-and dual-species cultures. The corrosion resistance of A36 carbon steel positively increased because of the dual-species interactions. This reached the highest value after four weeks of exposure. The highest corrosion inhibition e fficiency of 99.8% was achieved in the dual-species cultures. Microbial community analysis revealed the high relative abundance of Pseudoalteromonas piscicida during the initial days of exposure, demonstrating the dominant role of this bacterium in the biofilm structure.

关键词： Dual-species biofilm Steel alloys Corrosion inhibitory Electrochemical analysis Cooperative interaction

Microscopic Study of Nuclear Level Densities and Thermal Properties in^56,57 Fe

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Communications in Theoretical Physics 2007年第3X期48卷 531-533页

作者： Z, Kaxgax N. Ghahramani A. moradi Physics Department Shiraz University Shiraz 71454 Iran

We calculate level densities for ^56,57 Fe nuclei using BCS hamiltonian with inclusion of pairing interaction. The results of calculations show that the step structure observed experimentally has been supported by microscopic theory, Also the S-shaped energy and entropy as function of temperature have been obtained in theoretical calculations. Structures in the curves are interpreted as fingerprints of breaking Cooper pairs and quenching of pairing correlations.

关键词： level density ^56 57Fe pairing phase correlation

An MCDM approach to assessing influential factors on healthcare providers’safe performance during the COVID-19 pandemic:Probing into demographic variables

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Journal of Safety Science and Resilience 2023年第3期4卷 274-283页

作者： Vahid Salehi Gholamreza moradi Leila Omidi Elnaz Rahimi Faculty of Engineering and Applied Science Memorial University of NewfoundlandSt.John'sCanada Health and Environment Research Center Tabriz University of Medical SciencesTabrizIran Department of Occupational Health Engineering School of HealthTabriz University of Medical SciencesTabrizIran Department of Occupational Health Engineering School of Public HealthTehran University of Medical SciencesTehranIran

This study assessed the influence of occupational stress,individual resilience,and organizational resilience on the safety performance of healthcare providers during the COVID-19 *** variables including age,work experience,and gender were *** were collected from 344 healthcare providers employed at a teaching *** entropy method and the multi-criteria decision-making(MCDM)method were used to examine the influence of occupational stress,individual resilience,and organizational resilience on the safe performance of healthcare *** results of the entropy method showed that organizational resilience was the most influential factor in the safe performance of older healthcare *** contrast,individual resilience was the most significant factor in enhancing the safety performance of younger healthcare *** of work experience indicated that individual resilience was the most influential factor in the safe performance of less experienced healthcare ***-based analysis revealed that individual resilience had a major effect on the safety performance of both women and *** findings of this study could assist managers in improving the performance of the healthcare sector during pandemics by using and implementing resilience concepts at both the individual and organizational levels.

关键词： COVID-19 pandemic Safe performance Individual resilience Organizational resilience Demographic variables Entropy method

Coupling system application in photocatalytic degradation of methylorange by TiO_2, TiO_2/SiO_2 and TiO_2/SiO_2/Ag

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Rare Metals 2015年第12期34卷 851-858页

作者： Hossein Ghasemi Mobtaker Seyed Javad Ahmadi Shahram moradi Dehaghi Taher Yousefi Nuclear Fuel Cycle Research School Nuclear Science and Technology Research Institute Faculty of Chemistry Tehran North Branch Islamic Azad University

Three different photocatalysts including TiO2, TiO2/SiO2 and TiO2/SiO2/Ag were synthesized via sol–gel growth method, in which colloidal silica was used as Si source, titanium tetra iso-propoxide (TTiP) as titanium source, Ag+ as dopant ion and hydroxypropyl cellulose (HPC) as dispersant. The purpose was to study the enhancement of photocatalytic activity of TiO2 by deposition on SiO2 colloids and also doping with Ag ion. The catalysts were characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray fluorescence (XRF), Fourier transform infrared spectroscopy (FT-IR) and Brunauer–Emmett–Teller (BET) methods. It is confirmed that the major phase in all catalysts is anatase. Photocatalytic activity was studied in various conditions for degradation of methylorange (as a model pollutant) to evaluate the effect of some parameters on degradation efficiency. Studying the degradation process in various pH values reveals that the degradation is more efficient in acidic solution than alkaline condition. Coupling the photocatalytic process with some fields called electro-photochemical (EP), magnetic-photochemical (MP) and ultrasonic-photochemical (UP) was studied at two pH values which were compared with photochemical (P) alone. It is concluded that in most cases, the EP is the best coupled system and has the maximum efficiency. Liquid chromatography–mass spectrometry (LC–MS) analysis was used to check the complete decomposition of methylorange at the end of process.

关键词： Doping Electro-photochemical Magnetic-photochemical Ultrasonic-photochemical Sol–gel