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Transactions of Nonferrous Metals Society of China 2024年

作者： Sajad Ghaemifar Milad Roostaei mohammad reza zamani Stefan Wurster Hamed Mirzadeh School of Metallurgy and Materials Engineering， College of Engineering， University of Tehran Erich Schmid Institute of Materials Science， Austrian Academy of Sciences Department of Materials Science， Chair of Materials Physics， Montanuniversit?t Leoben

Effects of post-processing heat treatments on the microstructure， aging kinetics， and room/elevated temperature mechanical properties of additively manufactured Inconel 718 superalloy were investigated. Scanning electron microscopy (SEM)， electron backscattered diffraction (EBSD)， and X-ray diffraction (XRD)， as well as hardness， tensile， and creep testing were used for characterization. At temperatures higher than 1100 °C， homogenization treatment resulted in the appearance of equiaxed grains by recrystallization and diminishing the dislocation density. The precipitation activation energy for the homogenized aged condition was obtained as 203 kJ/mol， which was higher than the value of ～160 kJ/mol for the as-built IN718 superalloy. Therefore， direct aging resulted in a faster aging response， which led to a significant improvement in tensile properties， as rationalized by the strengthening mechanisms. Direct aging treatment resulted in a higher elevated-temperature ultimate tensile strength (UTS) as well as the optimum creep life and lowest minimum creep rate in comparison with other heat treating routes， which were attributed to the presence of fine and uniformly dispersed strengthening precipitates in conjunction with the high dislocation density.

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Experimental investigation into effects of the natural polymer and nanoclay particles on the EOR performance of chemical flooding in carbonate reservoirs

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Petroleum Science 2024年第2期21卷 951-961页

作者： Amir mohammad zamani Ashkan Moslemi Kamran Hassani Department of Petroleum Engineering Islamic Azad University Science and Research BranchTehranIran Institute of Petroleum Engineering University of TehranTehranIran

This paper aims to investigate the tragacanth gum potential as a natural polymer combined with natural clay mineral(montmorillonite,kaolinite,and illite)nanoparticles(NPs)to form NP-polymer suspension for enhanced oil recovery(EOR)in carbonate *** gravimetric analysis(TGA)tests were conducted initially in order to evaluate the properties of tragacanth ***,scanning electron microscopy(SEM)and energy-dispersive X-ray(EDX)tests were used to detect the structure of clay *** various scenarios,the effects of natural NPs and polymer on the wettability alteration,interfacial tension(IFT)reduction,viscosity improvement,and oil recovery were investigated through contact angle system,ring method,Anton Paar viscometer,and core flooding tests,*** entire experiment was conducted at 25,50,and 75℃,*** to the experimental results,the clay minerals alone did not have a significant effect on viscosity,but the addition of minerals to the polymer solution leads to the viscosity enhancement remarkably,resulting mobility ratio *** clay NPs,the combination of natural polymer and kaolinite results in increased viscosity at all *** wettability alteration was also observed in the case of natural polymer and illite *** in combination with natural polymer showed an ability in reducing ***,the results of displacement experiments revealed that the combination of natural polymer and kaolinite could be the best option for EOR due to its substantial ability to improve the recovery factor.

关键词： Chemical flooding Tragacanth gum Clay nanoparticle Wettability IFT

An Improved Binary Quantum-based Avian Navigation Optimizer Algorithm to Select Effective Feature Subset from Medical Data:A COVID-19 Case Study

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Journal of Bionic Engineering 2024年第1期21卷 426-446页

作者： Ali Fatahi mohammad H.Nadimi-Shahraki Hoda zamani Faculty of Computer Engineering Najafabad BranchIslamic Azad UniversityNajafabad ***Iran Big Data Research Center Najafabad BranchIslamic Azad UniversityNajafabad ***Iran

Feature Subset Selection(FSS)is an NP-hard problem to remove redundant and irrelevant features particularly from medical data,and it can be effectively addressed by metaheuristic ***,existing binary versions of metaheuristic algorithms have issues with convergence and lack an effective binarization method,resulting in suboptimal solutions that hinder diagnosis and prediction *** paper aims to propose an Improved Binary Quantum-based Avian Navigation Optimizer Algorithm(IBQANA)for FSS in medical data preprocessing to address the suboptimal solutions arising from binary versions of metaheuristic *** proposed IBQANA’s contributions include the Hybrid Binary Operator(HBO)and the Distance-based Binary Search Strategy(DBSS).HBO is designed to convert continuous values into binary solutions,even for values outside the[0,1]range,ensuring accurate binary *** the other hand,DBSS is a two-phase search strategy that enhances the performance of inferior search agents and accelerates *** combining exploration and exploitation phases based on an adaptive probability function,DBSS effectively avoids local *** effectiveness of applying HBO is compared with five transfer function families and thresholding on 12 medical datasets,with feature numbers ranging from 8 to 10,***'s effectiveness is evaluated regarding the accuracy,fitness,and selected features and compared with seven binary metaheuristic ***,IBQANA is utilized to detect *** results reveal that the proposed IBQANA outperforms all comparative algorithms on COVID-19 and 11 other medical *** proposed method presents a promising solution to the FSS problem in medical data preprocessing.

关键词： Feature subset selection Optimization Binary metaheuristic algorithms Bioinspired Machine learning Medical datasets

Solvent extraction-separation of La(III),Eu(III) and Er(III) ions from aqueous chloride medium using carbamoyl-carboxylic acid extractants

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Journal of Rare Earths 2016年第1期34卷 91-98页

作者： Reyhaneh Safarbali mohammad reza yaftian abbasali zamani Phase Equilibria Research Laboratory Department of Chemistry Faculty of Science University of Zanjan 45371-38791 Zanjan Iran Department of Environmental Science Faculty of Science University of Zanjan 45371-38791 Zanjan Iran

N,N-dibutyldiglycol amic acid （HL1） and N,N-dioctyldiglycol nmic acid （HLu） were synthesized and characterized by conventional spectroscopic methods. These molecules were examined as extractants for extraction-separation of La（Ⅲ）, Eu（Ⅲ） and Er（Ⅲ）, as representative ions of light, middle and heavy rare earths, from aqueous chloride solutions. The analysis of the extraction equilibria revealed that the extracted species of lanthanum and europium ions by both of the extractants had a 1：3 metal to ligand ratio It was suggested that erbium ions were extracted into the organic phase via the formation ofEr（LIor Ⅱ）2Cl complexes. The effect of the organic diluents on the extraction-separation efficiency of the studied rare earths by HLI and HLⅡ was investigated by comparing the results obtained in dichloromethane and carbon tetrachloride. Regardless to the diluent used, the order of selectivity presented by the investigated extractants was Er（Ⅲ）〉Eu（Ⅲ）〉La（Ⅲ）. It is noteworthy that, a significant enhancement in separation of the studied rare earths by the extractants was achieved in their competitive extraction experiments with respect to that obtained in single component extraction experiments. Applicability of the extractants for the removal of rare earth ions from spent Ni-MH batteries was tested by removal ofLa（Ⅲ）, Eu（Ⅲ） and Er（Ⅲ） ions from simulated leach solution of such batteries.

关键词： rare earths solvent extraction separation recovery amide-carboxylic acid ligands

Application of 2,2'-dithiobis(4-methylthiazole) as sensing material for construction of Lu^(3+) PVC-membrane sensor

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Chinese Chemical Letters 2011年第8期22卷 977-980页

作者： mohammad reza Abedi Hassan Ali zamani Department of Applied Chemistry Quchan BranchIslamic Azad UniversityQnchanIran

In this work a new Lu^（3＋） PVC-membrane sensor based on 2,2＇-dithiobis（4-methylthiazole）（TMT） has been *** sensor exhibits a Nernstian slope of 19.6±0.4 mV decade（？） in the concentration range of 1.0×10~6-1.0×10~2 mol L^1 and a detection limit of 6.8×10~7 mol L^*** could work well in the pH range of *** selectivity of the sensor against a lot of common alkaline,alkaline earth,transition,heavy metals and specially lanthanide ions was very good.

关键词： Ion-selective electrode Potentiometry Sensor PVC membrane

Quantitative Analysis of Holmium Ion by a Ho^3＋ Ion-Selective Sensor Based on a Symmetric Thio-Schiff＇s Base

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Chinese Journal of Chemistry 2011年第7期29卷 1523-1528页

作者： Hassan, Ali zamani Fatemeh, Rahimi Fatemeh, Naghavi-Reyabbi Ali, Arvinfar Alihossien, Imani mohammad, reza Ganjali Farnoush, Faridbod Masoud, Salavati-Niasari Department of Applied Chemistry Quchan Branch Islamic Azad University Quchan Iran Resident of General Surgery Endoscopic & Minimaly Invasive Surgery Research Center Ghaem Hospital Faculty of Medicine Mashhad University of Medical Sciences Mashhad Iran Center of Excellence in Electrochemistry Faculty of Chemistry University of Tehran Tehran lran Department of Chemistry Faculty of Science University of Kashan Kashan Iran

A poly（vinyl chloride）（PVC） membrane sensor for holmium ions was fabricated based on N-[（Z）-l-（2-thienyl）- methylidene]-N-[4-（4-{[（Z）-l-（2-thienyl）methylidene]amino} phenoxy）phenyl] amine （TPA） as a new ion carrier, acetophenon （AP） as plasticizing solvent mediator and sodium tetraphenyl borate （NaTPB） as an anion excluder. The electrode shows a good selectivity towards Ho^3＋ ions respect to other inorganic cations, including alkali, alka- line earth, transition and heavy metal ions. The constructed sensor displays a Nernstian behavior （19.5±0.3 mV/decade） over the concentration range of 1.0× 10^-6 to 1.0 ×10^- 2 mol·L^-1 with the detection limit of the electrode being 4.6）〈 10-7 mol·L^-1 and very short response time （ca. 5 s）. It has a useful working pH range of 3.2-9.8 for at least 8 weeks. The electrode was successfully applied as an indicator electrode for the potentiometric titration of a Ho^3＋ solution with EDTA and holmium determination in some alloys. The proposed sensor accuracy was studied by the determination of Ho^3＋ in mixtures of three different ions.

关键词： holmium ion PVC membrane sensor potentiometry Schiffs base ion-selective electrode

A neuro-observer-based optimal control for nonaffine nonlinear systems with control input saturations

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Control Theory and Technology 2021年第2期19卷 283-294页

作者： Behzad Farzanegan Mohsen zamani Amir Abolfazl Suratgar mohammad Bagher Menhaj Distributed Intelligent Optimization Research Lab Department of Electrical EngineeringAmirkabir University of TechnologyTehranIran Computational Intelligence Lab Department of Electrical EngineeringAmirkabir University of TechnologyTehranIran The School of Electrical Engineering and Computer Science The University of NewcastleNewcastleAustralia Department of Medical Physics and Engineering Shiraz University of Medical SciencesShirazIran

In this study,an adaptive neuro-observer-based optimal control(ANOPC)policy is introduced for unknown nonaffine nonlinear systems with control input ***–Jacobi–Bellman(HJB)framework is employed to minimize a non-quadratic cost function corresponding to the constrained control *** consists of both analytical and algebraic *** the analytical part,first,an observer-based neural network(NN)approximates uncertain system dynamics,and then another NN structure solves the HJB *** the algebraic part,the optimal control input that does not exceed the saturation bounds is *** weights of two NNs associated with observer and controller are simultaneously updated in an online *** ultimately uniformly boundedness(UUB)of all signals of the whole closed-loop system is ensured through Lyapunov’s direct ***,two numerical examples are provided to confirm the effectiveness of the proposed control strategy.

关键词： Input constraints Optimal control Neural networks Nonaffine nonlinear systems Reinforcement learning Unknown dynamics

Resistance of Helicobacter pylori to furazolidone and levofloxacin: A viewpoint

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World Journal of Gastroenterology 2017年第37期23卷 6920-6922页

作者： mohammad zamani Arash Rahbar Javad Shokri-Shirvani Student Research Committee Babol University of Medical Sciences Cancer Research Center Health Re-search Institute Babol University of Medical Sciences Student Research Committee Babol University of Medical Sciences Department of Internal Medicine Babol University of Medical Sciences

In their review, Arslan et al[1] did not describe the status of Helicobacter pylori(H. pylori) treatment with furazolidone and the resistance to this antibiotic. We have presented different surveys showing the resistance of H. pylori to furazolidone from Asia and South America. The resistance rates varied but were mostly low(< 5%). There are not enough data on its efficacy and resistance in the United States and Europe. H. pylori mutations occurring in the oor D gene, including A041 G, A122 G, C349A(G), A78 G, A112 G, A335 G, C156 T and C165 T, and in the por D gene, including G353 A, A356 G, C357 T, C347 T, C347 G and C346 A, have been indicated to be possibly related to the observed resistance. Additionally, to complete Arslan et al 's statement regarding levofloxacin resistance, it should be noted that compound mutations of N87 A, A88 N and V65 I at codon Asn-87 were recently observed in the gyr A gene for the first time. However, the results on these topics are not sufficient, and more worldwide studies are suggested.

关键词： Susceptibility Furazolidone Helicobacter pylori Resistance Levofloxacin Treatment

Etiology and therapeutic management of neonatal jaundice in Iran:a systematic review and meta-analysis

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World Journal of Pediatrics 2020年第5期16卷 480-493页

作者： Yadollah Zahed Pasha Shaghayegh Alizadeh-Tabari Ermia Zahed Pasha mohammad zamani Non-Communicable Pediatric Diseases Research Center Amirkola Children's HospitalBabol University of Medical SciencesBabolIran Student Research Committee Babol University of Medical SciencesBabolIran Department of Pathology Rohani HospitalBabol University of Medical SciencesBabolIran Cancer Research Center Health Research InstituteBabol University of Medical SciencesBabolIran

Background Jaundice is a life-threatening disorder in the *** the present study,we aimed to assess systematically available evidence on causes and management of jaundice in Iranian newborn *** We searched the databases of PubMed,Web of Sciences,Scopus and Google Scholar for English articles published since inception until May 2019.A search was also done for Persian articles in Magiran and Scientific Information *** were evaluated based on predefined criteria by two *** analysis was performed by STATA *** A total of 33 articles were finally *** overall pooled prevalence of causes of jaundice among Iranian neonates was as follows:ABO blood groups incompatibility,16.9%[95%confidence interval(CI)10.9-22.8];Rh blood group incompatibility,4%(95%CI 2.5-5.5);ABO and Rh blood groups incompatibility,3.6%(95%CI 0-7.7);glucose6-phosphate dehydrogenase(G6PD)deficiency,6.3%(95%CI 5.1-7.5);infection,6.6%(95%CI 5.2-8.1);hypothyroidism,4.2%(95%CI 0.1-8.3);infant of diabetic mother:2.3%(95%CI 0.1-4.5);unknown,50.7%(95%CI 33.4-68);cephalohematoma,0.6%(95%CI 0.3-0.9).Regarding treatment of icterus,seven and eight articles were found on phototherapy and exchange transfusion,*** five studies,all patients underwent phototherapy,but rate of exchange transfusion use was between 6.6%and 50.9%.Conclusions According to the results,unknown factors were the most common causes of icterus in Iranian neonates,followed by ABO blood groups incompatibility,infections and G6PD *** the way,phototherapy and exchange transfusion were found as therapeutic choices of neonatal jaundice.

关键词： Etiology Jaundice Newborn Systematic review Therapeutics

Deactivation studies of bifunctional Fe-HZSM5 catalyst in Fischer-Tropsch process

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Journal of Natural Gas Chemistry 2008年第3期17卷 242-248页

作者： Ali Nakhaei Pour Seyed Mehdi Kamali Shahri Yahya zamani mohammad Irani Shohreh Tehrani Research Institute of Petroleum Industry National Iranian Oil Company

A physical mixture of alkali-promoted iron catalyst with binder based on Fischer-Tropsch synthesis and an acidic co-catalyst （HZSM5） for syngas conversion to hydrocarbons was studied in a fixed bed micro reactor. Deactivation data were obtained during the synthesis over a 1400 h period. The deactivation studies on iron catalyst showed that this trend followed the phase transformation Fe2.2C （ ε′） → Fe5C2 （χ） → Fe3C （θ）, and the final predominant phase of the catalyst was Fe3C （θ）. Deactivation of zeolite component in bifunctional catalyst may be caused by coking over the zeolitic component, dealumination of zeolite crystals, and migration of alkali promoters from iron catalyst under synthesis conditions. The deactivation rate of iron catalyst was also obtained.

关键词： catalyst deactivation Fischer-Tropsch synthesis iron catalyst HZSM5 zeolite