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In-vitro assessments of micro arc oxidized ceramic flms on AZ31 magnesium implant: Degradation and cell-surface response

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Progress in Natural Science:Materials International 2013年第4期23卷 425-433页

作者： A.Seyfoori sh.Mirdamadi M.Mehrjoo A.Khavandi School of Metallurgy and Materials Engineering Iran University of Science and Technology National Cell Bank Pasteur Institute of Iran

In this research,phosphate and silicate based ceramic flms were synthesized via micro arc oxidation(MAO) method on the surface of the magnesium *** the aim of orthopedic application of these coatings,corrosion behavior of them was investigated by potentiodynamic polarization and electrochemical impedance spectroscopy in simulated body fuid(SBF) *** results indicated better corrosion resistance of the phosphate flm compared to the silicate ***,based on immersion tests,less pH and weight changes were obtained for the phosphate ***(G292) Cell response of the coated specimens showed better cell morphology on the surface of the phosphate flm than silicate flm after 6 and 24 h of *** was related to the more surface roughness and less degradation rate of the phosphate flm compared with silicate coating.

关键词： Corrosion Magnesium G292 cell Micro arc oxidation

FEM for Blood-Based SWCNTs Flow Through a Circular Cylinder in a Porous Medium with Electromagnetic Radiation

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Communications in Theoretical Physics 2019年第12期71卷 1425-1434页

作者： Mohamed R.Eid A.F.Al-Hossainy M.sh.Zoromba Department of Mathematics Faculty of ScienceNorthern Border UniversityArar1321Saudi Arabia Department of Mathematics Faculty of ScienceNew Valley UniversityAl-KhargaAl-Wadi Al-Gadid72511Egypt Department of Chemistry Faculty of ScienceNew Valley UniversityAl-KhargaAl-Wadi Al-Gadid72511Egypt Department of Chemistry Faculty of ScienceNorthern Border UniversityArar1321Saudi Arabia Department of Chemical and Materials Engineering King Abdulaziz UniversityRabigh 21911Saudi Arabia Department of Chemistry Faculty of SciencePort Said University42521 Port-SaidEgypt

This work aims to study magnetohydrodynamic flow through a circular cylinder in a horizontal position of SWCNTs in blood as a base fluid in the existence of non-linear thermal radiation and heat source/*** kinds of nanoparticles shapes are *** study is employed the finite element technique to explore and enhance the influences of essential parameters on temperature profiles and is debated the heat transport within blood injects with SWCNTs and exposes to electromagnetic *** treatment with thermal analysis and heat transfer rate being a better substitute more than surgery and chemotherapy for cancer *** of nanoparticles thermal features is a mounting area of nanomedicine field because of the probable for purposeful demolition of cancer *** remedy is relied on many parameters,including nanofluid thermal conductivity,nanoparticles volume fraction,thermal radiation and power and heat *** numerical solutions for flow and heat transfer features are assessed for diverse governing parameters *** obtained results are substantiated against the relevant numerical results in the published *** show that both flow velocity and temperature increase for larger values of thermal radiation,heat source and SWCNTs volume fraction with lamina and cylinder ***,spherical shape of SWCNTs occurs high disturbances in velocity and temperature distribution in the case of cooled cylinder.

关键词： finite element method heat transfer blood SWCNTs electromagnetic radiation

Growth of TiO_2 Nanorods by Sol-gel Template Process

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Journal of Materials Science & Technology 2007年第5期23卷 611-613页

作者： A.Sadeghzadeh Attar sh.Mirdamadi F.Hajiesmaeilbaigi M.Sasani Ghamsari Department of Metallurgy and Materials Engineering Iran University of Science and TechnologyTehranIran Solid State Laser Research Group Laser Research Center11365-8486TehranIran

In this work, TiO2 nanorods with uniform diameter of about 100 nm and a length of several micrometers were successfully prepared by the sol-gel template method. Also the influence of molar ratios of precursor on the morphology and structure of TiO2 nanorods has been investigated. The prepared samples were characterized by Fourier transform infrared spectroscopy （FTIR）, X-ray diffraction （XRD） and scanning electron microscopy （SEM）. The XRD results indicated that the TiO2 nanorods were crystallized in the anatase and rutile phases, after annealing to 400-700℃ up to 2 h.

关键词： TiO2 nanorods Sol-gel process Template-based growth

Study of electrophysical properties of metal–semiconductor contact by the theory of complex systems

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Journal of Semiconductors 2020年第10期41卷 17-20页

作者： sh.G.Askerov L.K.Abdullayeva M.G.Hasanov Institute for Physical Problems Baku State UniversityAZ1148BakuAzerbaijan

The purpose of this work is to analyze the electrical properties of the metal–semiconductor contact(MSC)in the framework of the theory of complex *** effect of inhomogeneity of the different microstructures:polycrystalline,monocrystalline,amorphous metal–semiconductor contact surface is investigated,considering a Schottky diode(SD)as a parallel connection of numerous *** has been shown that the polycrystallinity of the metal translates a homogeneous contact into a complex system,which consists of parallel connected numerous elementary contacts having different properties and parameters.

关键词： Schottky diode metal–semiconductor contact current–voltage characteristics interfaces heterogeneity complex systems

Cleaning method of InSb [111] B of n-InSb [111] A/B for the growth of epitaxial layers by liquid phase epitaxy

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Journal of Semiconductors 2011年第5期32卷 146-148页

作者： Gh.Sareminia F.Zahedi sh.Eminov Ar.Karamian Electronic Component Industry(ECI)-Optoelectronic Industry P.O.Box 19575-199TehranIran Institute of Physics Azerbaijan UniversityBakuAzerbaijan Department of Mathematics Razi UniversityKermanshaIran

The crystal structure of InSb [111] A/B surfaces shows that this structure is polarized. This means that the surfaces of InSb [111] A and InSb [1^-1^- 1^-] B contain two different crystallized directions and they have different physical and chemical properties. Experiments were carried out on the InSb [ 111 ] A/B surfaces, showing that tartaric acid etchant could create a very smooth surface on the InSb [1^-1^- 1^-] B without any traces of oxides and etch pit but simultaneously create etch pit on InSb [ 111 ] A surfaces. After lapping and polishing, some particles remained on the InSb [1^-1^- 1^-] B surface, they could not be removed easily by standard cleaning process and if these particles remain on the surface of the substrate, the growth layer was not uniform and some island-like regions were observed. The purpose of this work is to remove these particles on the lnSb [1^-1^- 1^-] B surface. Some morphology images of both surfaces, InSb [11 1] A/B, will be presented.

关键词： cleaning lnSb lapping polishing InSb [1^-1^- 1^-] B

Gorenstein Projective Modules over Triangular Matrix Rings

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Algebra Colloquium 2016年第1期23卷 97-104页

作者： H. Eshraghi R. Hafezi sh. Salarian Z.W. Li Department of Pure Mathematics Faculty of Mathematical Sciences University of Kashan P.O. Box 87317-51167 Kashan Iran School of Mathematics Institute for Research in Fundamental Sciences (IPM) P.O. Box 19395-5746 Tehran Iran Department of Mathematics University of Isfahan P.O. Box 81746-73441 Isfahan Iran School of Mathematics Institute for Research in Fundarnental Sciences (IPM) P.O. Box 19395-5746 Tehran Iran Department of Mathematics Jiangsu Normal University Xuzhou 221116 China

Let R and S be Artin algebras and F be their triangular matrix extension via a bimodule sMR. We study totally acyclic complexes of projective F-modules and obtain a complete description of Gorenstein projective F-modu... 详细信息

关键词： Gorenstein projective totally acyclic Cohen-Macaulay finite

Selective Dealumination of ZSM-5 by Hydrothermal Treatment

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Chinese Chemical Letters 1998年第4期9卷 397-400页

作者： Zhang, K Zhang, HB Xiang, sh Liu, SY Li, HX He, F Nankai Univ Dept Chem Catalysis Lab Tianjin 300071 Peoples R China Tianjin Univ State Key Lab C Chem Tianjin 300072 Peoples R China

We studied the factors affecting the framework aluminium distribution in the ZSM-5 structure by hydrothermal treatment under different conditions. (27)AlMASNMR, XPS and chemical analysis revealed that with steaming at lower water vapor pressure, the framework aluminium located at the external surface is less stable. Steaming at higher water vapor pressure is beneficial in removing the framework Al in HZSM-5, and especially helpful in removing that located at the internal surface of HZSM-5. By changing steaming conditions, one may control the framework aluminium distribution in the HZSM-5 structure.

关键词： selective dealumination water vapor pressure steaming HZSM-5

Crystal structure of Q156A trichosanthin

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Chinese Science Bulletin 1997年第16期42卷 1366-1369页

作者： Dong, YC Zhu, YR Cheng, sh Li, JH shaw, PC Chinese Acad Sci Inst Biophys Beijing 100101 Peoples R China Chinese Univ Hong Kong Dept Biochem Hong Kong Hong Kong Peoples R China

RIBOSOME inactivating proteins (RIPs) are a group of toxin with RNA N-glycosidase. It

关键词： mutant crystal structure trichosanthin.

Structure of A=11 double-Λ hypernuclei studied with three-body forces

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Chinese Physics C 2013年第5期37卷 22-27页

作者： H. Sadeghi sh. Nahidinejad K. Bahraminejad Department of Physics Faculty of Science Arak University

The energy levels and AA bond energy of the double-A hypernucleus nBe are calculated considering two- and three-nucleon forces. The interactions between the constituent particles are contact interactions that reproduce the low-energy binding energy of the nuclei. Effective action is constructed to involve the three-body forces. In this paper, we compare the binding energy result that is obtained with the experimental and other modern nucleon- nucleon potentials. The results of all the schemes agree very well, showing the high accuracy of our present ability to calculate the many-nucleon bound state with three-body forces. The experimental value of BAA（Be）=20.83 MeV seems to be more compatible with our calculated value of BAA（Be）=-19.31 MeV in comparison with the calculated result of 18.23 MeV by Hiyama et al.

关键词： five-body cluster A=11 double-A hypernuclei binding energy three-body forces