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| 1 | Corrosion behavior of electron beam processed AZ91 magnesium alloy显示文摘The increasing use of light alloys owing to their high performance makes magnesium alloys very attractive for the use in automotive and biomedical applications.However,it is well known that magnesium and its alloys have poor corrosion resistance in different atmospheric and aqueous environments.As a means of improving corrosion resistance through the microstructure modification,electron beam processing(EBP)was applied on the as-cast AZ91 magnesium alloy.To evaluate the microstructure influence on the corrosion-resistant,the EB processed samples underwent a solution heat treatment and an artificial aging heat treatment.Four different obtained microstructures were investigated by standard microscopy and electrochemical corrosion tests to evaluate the microstructure and its effects on the corrosion resistance of AZ91 alloy.The EBPed specimens show a significant microstructure refinement and homogenous distribution ofβ-phase at the grain boundaries surrounded by supersaturatedα-Mg which acts as a barrier against corrosion.The electrochemical corrosion test of the samples immersed in 3.5 wt%NaCl after 4 weeks indicates that the EBP improves the corrosion resistance of the alloy due to the nobler corrosion potential of supersaturated a-Mg and more stable protective hydroxide films compared to the heat-treated and as-cast conditions. | Fatemeh Iranshahi Mohammad Bagher Nasiri Fernando Gustavo Warchomicka Christof Sommitsch | 2020 | Journal of Magnesium and Alloys2020,8,4: | 7 |
| 2 | Kinetic study of methane hydrate formation in the presence of carbon nanostructures显示文摘The effect of synthesized nanostructures,including graphene oxide,chemically reduced graphene oxide with sodium dodecyl sulfate(SDS),chemically reduced graphene oxide with polyvinylpyrrolidone,and multi-walled carbon nanotubes,on the kinetics of methane hydrate formation was investigated in this work.The experiments were carried out at a pressure of 4.5 MPa and a temperature of 0 ℃ in a batch reactor.By adding nanostructures,the induction time decreases,and the shortest induction time appeares at certain concentrations of reduced graphene oxide with SDS and graphene oxide,that is,at a concentration of 360 ppm for reduced graphene oxide with SDS and 180 ppm for graphene oxide,with a 98% decrease in induction time compared to that in pure water.Moreover,utilization of carbon nanostructures increases the amount and the rate of methane consumed during the hydrate formation process.Utilization of multi-walled carbon nanotubes with a concentration of 90 ppm showes the highest amount of methane consumption.The amount of methane consumption increases by 173% in comparison with that in pure water.The addition of carbon nanostructures does not change the storage capacity of methane hydrate in the hydrate formation process,while the percentage of water conversion to hydrate in the presence of carbon nanotubes increases considerably,the greatest value of which occurres at a 90 ppm concentration of carbon nanotubes,that is,a 253% increase in the presence of carbon nanotubes compared to that of pure water. | Saeid Abedi-Farizhendi Mina Iranshahi Abolfazl Mohammadi Mehrdad Manteghian Amir H. Mohammadi | 2019 | Petroleum Science2019,16,3: | 2 |
| 3 | An Investigation of the Effects of Curcumin on Anxiety and Depression in Obese Individuals:A Randomized Controlled Trial显示文摘Objective:To investigate the effectiveness of curcumin,a natural polyphenoiic compound with antioxidant and anti-inflammatory activities,on the frequency of symptoms of anxiety and depression in obese individuals.Methods:In this double blind,cross-over trial,30 obese subjects were randomized to receive either curcumin(1 g/day) or placebo for a period of 30 days.Following a wash-out interval of 2 weeks,each subject was crossed over to the alternative regimen for a further 30 days.Severity of anxiety and depression was assessed at baseline and at weeks 4,6 and 10 of the trial using the Beck Anxiety Inventory(BAI) and Beck Depression Inventory(BDI) scales,respectively.Results:Mean BAI score was found to be significantly reduced following curcumin therapy(P=0.03).However,curcumin supplementation did not exert any significant impact on BDI scores(P=0.7).Conclusion:Curcumin has a potential anti-anxiety effect in individuals with obesity. | Habibollah Esmaily Amirhossein Sahebkar Mehrdad Iranshahi Shiva Ganjali Akram Mohammadi Gordon Ferns Majid Ghayour-Mobarhan | 2015 | Chinese Journal of Integrative Medicine2015,21,5: | 2 |
| 4 | Polar secondary metabolites of Ferula persica roots 显示文摘 | IRANSHAHI M MOJARAB M SADEGHIAN H | 2008 | Phytochemistry2008,69,: | 1 |
| 5 | Prior knowledge and information-seeking behavior of PHD and MA students显示文摘 | Mahmood Khosrowjerdi Mohammad Iranshahi | 2011 | Library and Information Science Research2011,33,5: | 1 |
| 6 | A new cou- matin from Ferula persica 显示文摘 | IRANSHAHI M AMIN G SHAFIEE A | 2004 | Pharmaceutical Biolo- gy2004,42,6: | 1 |
| 7 | Numerical investigation of the mixing efficiency of the ekato paravisc impeller hemical 显示文摘 | Iranshahi A | 2006 | Engineering Science2006,61,: | 1 |
| 8 | The enhancement of vincristine cytotoxicity by combination with feselol显示文摘 | Mollazadeh S Matin MM Iranshahi M | 2010 | J Asian Nat Prod Res2010,12,7: | 1 |
| 9 | Investigating the enhancement of cisplatin cytotoxicity on 5637 cells by combination with mogoltacin显示文摘 | Rassouli FB Matin M Iranshahi M et a1 | 2011 | Toxicology in Vitro2011,25,2: | 1 |
| 10 | Comprehensive unified model and simulation approach for microstructure evolution显示文摘The prediction of microstructure constituents and their morphologies is of great importance for the evaluation of material properties and design of advanced materials.There have been considerable efforts to model and simulate microstructure evolution using a wide spectrum of models and simulation approaches.This paper initially reviews the atomistic and mesoscale simulation approaches for microstructure evolution,emphasizing their advantages and disadvantages.Atomistic approaches,such as molecular dynamics,are restricted by the scale of the studied system because they are computationally expensive.Continuum mesoscale simulation approaches,such as phase field,cellular automata,and Monte Carlo,have inconsistent phenomenological equations,each of which only describes one aspect of microstructure evolution.To provide comprehensive insight into microstructure evolution,a unified model that is capable of equally evaluating the nucleation and growth processes is required.In this paper,a physics-based model is proposed that incorporates statistical mechanics,the energy conservation law,and the force equilibrium concept to include all aspects of microstructure evolution.A compatible simulation approach is also described to simulate microstructure evolution during thermomechanical treatments.Furthermore,the microstructure evolution of AISI 304 austenitic steel during isothermal heat treatment and fusion welding is simulated and discussed.The use of fundamental physical rules instead of phenomenological equations,together with the real spatial and temporal scales of the proposed model,facilitates the comparison of the simulation results with experimental results.To examine the accuracy of the proposed simulation approach,the isothermal heat treatment simulation results are compared with experimental data over a broad region of temperatures and time periods. | Mohammad Bagher Nasiri Fatemeh Iranshahi | 2022 | ChemPhysMater2022,1,2: | 1 |
| 11 | Sesquiterpene coumarins from the fruits of Ferula badrakema 显示文摘 | IRANSHAHI M REZAEE R SAHEBKAR A | 2009 | Pharmaceutical Biology2009,47,4: | 1 |
| 12 | Ses- quiterpene coumarins from Ferula gumosa 显示文摘 | IRANSHAHI M MASULLO M ASILI A | 2010 | J Nat Prod2010,73,: | 1 |
| 13 | Traditional uses, phytochemistry andpharmacology of asafoetida (Ferula assa-foetida oleo-gum-resin)-a review显示文摘 | Iranshahy M Iranshahi M | 2011 | Ethnopharmacol2011,134,1: | 1 |
| 14 | Diversolides A-G, guaianolides from the roots of Ferula diversivittata 显示文摘 | IRANSHAHI M HOSSEINI S T SHAHVERDI A R | 2008 | Phytochemistry2008,69,: | 1 |
| 15 | Biologically active sesquiterpenecoumarins from Ferula species 显示文摘 | Nazari ZE Iranshahi M | 2011 | Phytother Res2011,25,3: | 1 |
| 16 | Biologically active sesquiterpenecoumarins from femla species显示文摘 | Nazari Z E Iranshahi M | 2011 | Phytotherapy Research2011,25,3: | 1 |
| 17 | Diversolides A–G,guaianol ides from the roots of Ferula diversivittata显示文摘 | Mehrdad Iranshahi Seyyed Tahmineh Hossein Ahmad Reza Shahverd | 2008 | Phytochemistry2008,69,: | 1 |
| 18 | Progress in catalytic naphtha reforming process: A review 显示文摘 | Rahimpour M R Jafari M Iranshahi D | 2013 | Applied Energy2013,109,: | 1 |
| 19 | Cancerchemopreventive activity of terpenoid coumarins from Ferulaspecies显示文摘 | Iranshahi Mehrdad Kalategi Farhad Rezaee Ramin | 2008 | Planta Medica2008,74,2: | 1 |
| 20 | FarnesiferolA from Ferula persica and galbanic acid from Ferula szowitsianainhibit P-glycoprotein-mediated rhodamine efflux in breastcancer cell lines显示文摘 | HANAFI-BOJD M Y IRANSHAHI M MOSAFFA F | 2011 | Planta Med2011,77,14: | 1 |