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Applied Mathematics and Mechanics(english edition) 2015年第11期36卷 1449-1458页

作者： M.hatami S.e.GHASeMI S.A.R.SAHeBI S.MOSAYeBIDORCHeH D.D.GANJI J.hatami Department of Mechanical engineering Esfarayen University of Technology Young Researchers and elite Club Islamic Azad University Deptartment of Mechanical engineering Islamic Azad University Department of Mechanical engineering Babol University of Technology Garmsar Health & Care Center Semnan University of Medical Sciences

In this paper, a non-Newtonian third-grade blood in coronary and femoral arteries is simulated analytically and numerically. The blood is considered as the third- grade non-Newtonian fluid under the periodic body acceleration motion and the pulsatile pressure gradient. The hybrid multi-step differential transformation method （Hybrid-Ms- DTM） and the Crank-Nicholson method （CNM） are used to solve the partial differential equation （PDe）, and a good agreement between them is observed in the results. The effects of the some physical parameters such as the amplitude, the lead angle, and the body acceleration frequency on the velocity and shear stress profiles are considered. The results show that increasing the amplitude, Ag, and reducing the lead angle of body acceleration, 9, make higher velocity profiles on the center line of both arteries. Also, the maximum wall shear stress increases when Ag increases.

关键词： pulsatile blood third-grade non-Newtonian fluid differential transforma-tion method (DTM) femoral artery coronary artery

Facile, one-pot synthesis of new phenanthridine derivatives through 1,4-dipolar cycloaddition of phenantridine, activated acetylenes, and aromatic aldehydes

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Chinese Chemical Letters 2014年第11期25卷 1495-1498页

作者： Hossein Mehrabi Mahdi hatami-Pour Department of Chemistry Vali-e-Asr University of Rafsanjan

A facile, one-pot synthesis of new phenanthridine derivatives by a three-component reaction between phenantridine, dialkyl acetylenedicarboxylates（DAADs）, and aromatic aldehydes is described. The reaction is charact... 详细信息

关键词： Phenanthridine Dialkyl acetylenedicarboxylate Multicomponent reaction Aromatic aldehydes

Numerical study on polymer nanofibers with electrically charged jet of viscoelastic fluid in electrospinning process

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Journal of Central South University 2017年第10期24卷 2275-2280页

作者： P.Valipour H.Zaersabet M.hatami Ali Zolfagharian S.e.Ghasemi Department of Textile and Apparel Qaemshahr BranchIslamic Azad UniversityQaemshahrIran Department of Mechanical engineering Esfarayen University of TechnologyEsfarayenNorth KhorasanIran School of engineering Deakin UniversityGeelongVictoria 3216Australia Young Researchers and elite Club Sari BranchIslamic Azad UniversitySariIran

electrospinning is a useful and efficient technique to produce polymeric nanofibers. Nanofibers of polymers are electrospun by creating an electrically charged jet of polymer solution. Numerical study on non-Newtonian and viscoelastic jets of polymer nanofibers in electrospinning process is presented in this work. In particular, the effect of non-Newtonian rheology on the jet profile during the electrospinning process is examined. The governing equations of the problem are solved numerically using the Keller-Box method. The effects of yield stress and power-law index on the elongation, velocity, stress and total force are presented and discussed in detail. The results show that by increasing the values of yield stress, the fluid elongation is reduced significantly.

关键词： nanofibers electrospinning electrically charged jet viscoelastic fluid synthetic polymers

Heat transfer study on solid and porous convective fins with temperature-dependent heat generation using efficient analytical method

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Journal of Central South University 2014年第12期21卷 4592-4598页

作者： S.e.Ghasemi P.Valipour M.hatami D.D.Ganji Young Reseachers and elite Club Qaemshahr Branch Islamic Azad University Department of Textile and Apparel Qaemshahr Branch Islamic Azad University Department of Mechanical engineering Esfarayen University of Technology Department of Mechanical engineering Babol University of Technology

A simple and highly accurate semi-analytical method, called the differential transformation method(DTM), was used for solving the nonlinear temperature distribution equation in solid and porous longitudinal fin with temperature dependent internal heat generation. The problem was solved for two main cases. In the first case, heat generation was assumed variable by fin temperature for a solid fin and in second heat generation varied with temperature for a porous fin. Results are presented for the temperature distribution for a range of values of parameters appearing in the mathematical formulation(e.g. N, εG, and G). Results reveal that DTM is very effective and convenient. Also, it is found that this method can achieve more suitable results in comparison to numerical methods.

关键词： heat transfer convective fin solid and porous fin heat generation analytical method thermal analysis

Oxidative coupling of methane over (Na_2WO_4+Mn or Ce)/SiO_2 catalysts:In situ measurement of electrical conductivity

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Journal of Natural Gas Chemistry 2010年第1期19卷 35-42页

作者： Zeinab Gholipour Azim Malekzadeh Reza hatami Yadollah Mortazavi Abasali Khodadadi School of Chemistry Damghan University of Basic Sciences (DUBS) P.O. Box 36715/364 Damghan I. R. Iran Catalysis and Nanostructured Materials Research Laboratory School of Chemical Engineering University of Tehran P.O. Box 11365/4563 Tehran I. R. Iran

The effects of manganese oxide or ceria promoters on the performance of Na2WO4/SiO2 catalysts for oxidative coupling of methane （OCM） are reported. The OCM reaction was performed in a continuous-flow microreactor at 800℃, atmospheric pressure and under GHSV = 13200 ml·gCat^-1·h^-*** were characterized by in situ conductivity measurement, FT-IR spectroscopy, XRD, SeM and temperature programmed reduction analysis. Manganese oxide promoted Na2WO4/SiO2 is considered as one of the active and selective catalysts for OCM reaction. Ceria with high oxygen storage capacity is selected as a proper oxygen activator, providing a higher concentration of the oxy-anion species which is suitable for OCM reaction and compared with manganese oxide. electrical conductivity of the catalysts was measured in OCM reaction under oxidizing atmosphere, i.e. in the absence of methane. It was found that the trimetallic catalysts, i.e. the catalysts having sodium, tungsten and Mn or Ce species, exhibited similar crystalline structures and morphologies, which lead to suitable bulk properties for the formation of an active and selective catalyst. However, tungsten had significant effect on the texture and redox properties of the catalysts. It was also shown that the crystalline structure of the bimetallic （Na＋Mn or Ce）/SiO2 samples was quite different. This reveals that the metal oxides have significant effect on the extent of crystallization, taking place in the course of interaction of sodium with silica support. Similar conductivities and catalytic performances of （Na2WO4＋Mn or Ce）/SiO2 catalysts propose that the ability of Na2WO4/SiO2 for utilizing oxy-anions formed in presence of different metal oxides is limited.

关键词： oxidative coupling of methane (OCM) conductivity manganese oxide ceria TPR

Quantum phase distribution and the number-phase Wigner function of the generalized squeezed vacuum states associated with solvable quantum systems

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Chinese Physics B 2012年第5期21卷 265-273页

作者： G.R.Honarasa M.K.Tavassoly M.hatami Department of Physics Faculty of ScienceShiraz University of Technology Atomic and Molecular Group Faculty of PhysicsYazd University

The quantum phase properties of the generalized squeezed vacuum states associated with solvable quantum systems are studied by using the Pegg-Barnett ***,two nonclassical features,i.e.,squeezing in the number and phase operators,as well as the number-phase Wigner function of the generalized squeezed states are *** to some actual physical situations,the present approach is applied to two classes of generalized squeezed states：solvable quantum systems with discrete spectra and nonlinear squeezed states with particular nonlinear ***,the time evolution of the nonclassical properties of the considered systems has been numerically investigated.

关键词： squeezed vacuum states solvable quantum systems phase distribution number phaseWigner function

Synthesis and characterization of novel dopamine-derivative:Application of modified multi-wall carbon nanotubes paste electrode for electrochemical investigation

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Chinese Chemical Letters 2011年第2期22卷 185-188页

作者： Shadpour Mallakpour Mehdi hatami Ali A.ensafi Hassan Karimi-Maleh Organic Polymer Chemistry Research Laboratory Department of ChemistryIsfahan University of TechnologyIsfahan 84156-83111Islamic Republic of Iran

Novel dopamine-derivative compound,3,5-diamino-N-（3,4-dihydroxyphenethyl）benzamide（3,5-DAB）was prepared in two *** the first step dopamine hydrochloride was reacted with 3,5-dinitrobenzoyl chloride in the presence of propylene *** the second step reduction of nitro groups resulted in preparation of 3,5-DAB in quantitative *** material was characterized using conventional spectroscopic methods such as FT-IR and ~1H *** addition,the redox response of a modified carbon nanotubes paste electrode of 3,5-DAB was investigated in aqueous solution at a neutral *** result showed that the electrode process has a quasi-reversible response,withΔe_p,greater than the（59/n） mV expected for a reversible ***,the diffusion coefficient for redox process in paraffin oil matrix obtained using chronoamperometry methods.

关键词： 3,5-Diamino-N-(3,4-dihydroxyphenethyl)benzamide Synthesis electrochemical investigation Cyclic voltammetry Multi-wall carbon nanotubes paste electrode

Role of bazaars as a unifying factor in traditional cities of Iran： The Isfahan bazaar

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Frontiers of Architectural Research 2014年第1期3卷 10-19页

作者： Mohammadreza Pourjafar Masoome Amini elham hatami Yarzaneh Mohammadjavad Mahdavinejad Faculty of Art & Architecture-Tarbiat Modares University Tehran Iran Architecture Fuculty of Art and Architecture Turbiat Modares University Tehran Iran Fuculty of Art and Architecture Khorasgan Azad University Isfuhan Iran

A city is a vital organism that lives and grows （ike other organisms. Therefore, implementing development plans that would provide a sense of unity and integration in relation to the city as a who（e is necessary. Traditional Iranian architecture is full of samples evolved during the course of Iranian history that can serve as architectural paragons of the city. In Iran＇s traditional cities, a sense of unity exists in various urban areas. The traditional city of Isfahan is one of the most valuable samples and was selected as the case study in this research. According（y, the most important questions of this research are as follows：（1） What is the role of bazaars in creating a sense of unity in the traditional cities of Iran？（2） How do bazaars play out their ro（e in the integration of these cities？ This research focuses on the concept of a ＂traditional city＂ to determine the role of bazaars in such cities. The results show that bazaars are crucial in giving a sense of integrity to the concept of a traditional Iranian city. Bazaars provide cohesion among the different parts of cities, such as residential areas, as well as socio-political and trade centers. This condition means that traditional bazaars play two important roles in traditional cities：（1） they interconnect the different parts of thecity＇s physical structure; and （2） the crucial role of bazaars in a city＇s socia（ and cultural structure brings about unity among the citizens in the city. Bazaars as a unifying etement connect the main urban functions and guarantee the city＇s economic and social rife.

关键词： Traditional city Bazaar Development axes Isfahan

efficient multi-level fault simulation of HW/SW systems for structural faults

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Science China(Information Sciences) 2011年第9期54卷 1784-1796页

作者： BARANOWSKI Rafal DI CARLO Stefano hatami nade.e. IMHOF Michael e. KOCHTe Michael A. PRINeTTO Paolo WUNDeRLICH Hans-Joachim ZOeLLIN Christian G. University of Stuttgart Institute of Computer Architecture and Computer Engineering Politecnico di Torino Dipartimento di Automatica e Informatica

In recent technology nodes,reliability is increasingly considered a part of the standard design flow to be taken into account at all levels of embedded systems *** traditional fault simulation techniques based on low-level models at gate-and register transfer-level offer high accuracy,they are too inefficient to properly cope with the complexity of modern embedded ***,they do not allow for early exploration of design alternatives when a detailed model of the whole system is not yet available,which is highly required to increase the efficiency and quality of the design ***-level models that combine the simulation efficiency of high abstraction models with the accuracy of low-level models are therefore essential to efficiently evaluate the impact of physical defects on the *** paper proposes a methodology to efficiently implement concurrent multi-level fault simulation across gate-and transaction-level models in an integrated simulation *** leverages state-of-the-art techniques for efficient fault simulation of structural faults together with transaction-level *** combination of different models allows to accurately evaluate the impact of faults on the entire hardware/software system while keeping the computational effort ***,since only selected portions of the system require low-level models,early exploration of different design alternatives is efficiently *** results obtained from three case studies are presented to demonstrate the high accuracy of the proposed method when compared with a standard gate/RT mixed-level approach and the strong improvement of simulation time which is reduced by four orders of magnitude in average.

关键词： fault simulation multi-level transaction-level modeling

MHD and Viscous Dissipation effects in Marangoni Mixed Flow of a Nanofluid over an Inclined Plate in the Presence of Ohmic Heating

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Fluid Dynamics & Materials Processing 2021年第2期17卷 285-300页

作者： D.R.V.S.R.K.Sastry Peri K.Kameswaran Mohammad hatami Department of Mathematics SASTRA UniversityTamilnaduIndia Department of Mathematics School of Advanced SciencesVIT UniversityTamilnaduIndia Mechanical engineering Department Esfarayen University of TechnologyEsfarayenIran

The problem of Marangoni mixed convection in the presence of an inclined magnetic field with uniform strength in a nanofluid(formed by the dispersion of two metallic nanoparticles,i.e.,Copper(Cu),and alumina(Al_(2)O_(3))in water)is addressed *** effects of viscous dissipation and Ohmic heating are also *** original set of governing partial differential equations is reduced to a set of non-linear coupled ordinary differential equations employing the similarity transformation *** simplified equations are numerically solved through MATLAB‘bvp4c’*** results are presented in terms of graphs for several *** is found that enhancing the stratification parameter leads to a decrease in the fluid temperature,and an increase in the aligned magnetic field angle reduces the flow ***,mixed convection tends to enhance both the Nusselt and Sherwood *** the angle of inclination is made higher,the fluid velocity is reduced and the thickness of the thermal and concentration boundary layer grows.

关键词： Viscous dissipation inclined magnetic field marangoni mixed convection nanofluid