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Petrochemical Characteristics and Timing of Middle Eocene Granitic Magmatism in Kooh-Shah, Lut Block, Eastern Iran

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Acta Geologica Sinica(English Edition) 2013年第4期87卷 1032-1044页

作者： maryam ABDI M. H. KARIMPOUR Department of Geology Ferdowsi University of Mashhad Research Center for Ore Deposit of Eastern Iran Ferdowsi University of Mashhad

The Kooh-Shah region located in a Tertiary volcanic-plutonic belt of the Lut Block in eastern Iran comprises several subvolcanic intermediate to acidic intrusive rocks, diorite to syenite in composition, which have intruded into volcanic rocks. The Kooh-Shah granitoid rocks are characterized by enrichment in large ion-lithophile elements （LILE： e.g. Sr, Ba, Rb） and depletion in high field-strength elements （HFSE： e.g. Nb, Ta, Ti）. The chondrite-normalized REE patterns are characterized by moderate LREE enrichment （La/Yb）N=6.01-10.01, medium-heavy REE enrichment, and absence of Eu anomalies. The Kooh-Shah intrusive rocks are metaluminous, shoshonitic with calc-alkaline affinity and high values of magnetic susceptibility, and classified as the magnetite-series of oxidant I-type granitoids. The age of Kooh-Shah granitoid rocks based on zircon U-Pb age dating is 39.7±0.7 Ma （=Middle Eocene） and the ranges of their initial 87Sr/86Sr and 143Nd/144Nd ratios are from 0.704812 to 0.704920 and 0.512579 to 0.512644, respectively, when recalculated to an age of 39 Ma. The initial ？Nd isotope values for the Kooh-Shah intrusive rocks range from -0.18 to 1.09. This geochemical data indicates that the Kooh-Shah granitoid rocks formed from depleted mantle in an island arc setting. The geochemical signature of the studied granitoid rocks represents a characteristic guide for future exploration of copper-gold porphyry-type deposits in the Lut block.

关键词： geochemistry igneous rocks granitoids magmatism Lut Block Iran

Magnetic CuO nanoparticles supported on graphene oxide as an efficient catalyst for A^3-coupling synthesis of propargylamines

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Chinese Chemical Letters 2015年第9期26卷 1085-1090页

作者： maryam Mirabedini Elaheh Motamedi Mohammad Zaman Kassaee Department of Chemistry Tarbiat Modares University Department of Food Nanotechnology Research Institute of Food Science and Technology(RIFST)

Magnetically separable CuO nanoparticles supported on graphene oxide（Fe3O4 NPs/GO-CuO NPs） is synthesized and characterized for the preparation of propargylamines in EtOH,at 90 ***3O4 NPs/GOCuO NPs is found to be an efficient catalyst for the A^3-coupling of aldehydes,amines,and alkynes through C-H *** aromatic and aliphatic aldehydes and alkynes are combined with secondary amines to provide a wide range of propargylamines in moderate to excellent yields.

关键词： CuO Graphene oxide Fe3O4 A^3-coupling Nano-catalyst Magnetic nanoparticles

Photometric stereo for strong specular highlights

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Computational Visual Media 2018年第1期4卷 83-102页

作者： maryam Khanian Ali Sharifi Boroujerdi Michael BreuB Chair of Applied Mathematics Brandenburg Universityof TechnologyCottbus 03046Germany

Photometric stereo is a fundamental technique in computer vision known to produce 3D shape with high accuracy. It uses several input images of a static scene taken from one and the same camera position but under varying illumination. The vast majority of studies in this 3D reconstruction method assume orthographic projection for the camera *** addition, they mainly use the Lambertian reflectance model as the way that light scatters at ***, providing reliable photometric stereo results from real world objects still remains a challenging task. We address 3D reconstruction by use of a more realistic set of assumptions, combining for the first time the complete Blinn–Phong reflectance model and perspective projection. Furthermore, we compare two different methods of incorporating the perspective projection into our model. Experiments are performed on both synthetic and real world images; the latter do not benefit from laboratory conditions. The results show the high potential of our method even for complex real world applications such as medical endoscopy images which may include many specular highlights.

关键词： photometric stereo(PS) complete Blinn–Phong model perspective projection diffuse reflection specular reflection

Stabilization of a class of nonlinear discrete time systems with time varying delay

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Journal of Central South University 2014年第10期21卷 3769-3776页

作者： maryam Fattahi Nastaran Vasegh Hamid Reza Momeni Faculty of Electrical and Computer Engineering Tarbiat Modares University Faculty of Electrical and Computer Engineering Shahid Rajaee Teacher Tehran Iran

The stability and stabilization of a class of nonlinear discrete time delayed systems(NDTDS) with time-varying delay and norm-bounded nonlinearity are investigated. Based on discrete time Lyapunov–Krasovskii functional method, a sufficient delaydependent condition for asymptotic stability of nonlinear systems is offered. Then, this condition is used to design a new efficient delayed state feedback controller(DSFC) for stabilization of such systems. These conditions are in the linear matrix inequality(LMI) framework. Illustrative examples confirm the improvement of the proposed approach over the similar cases. Furthermore, the obtained stability and stabilization conditions will be extended to uncertain discrete time delayed systems(UDTDS) with polytopic parameter uncertainties and also with norm-bounded parameter uncertainties.

关键词： nonlinear discrete time delayed systems Lyapunov–Krasovskii functional delayed state feedback linear matrix inequality(LMI) polytopic parameter uncertainties norm bounded parameter uncertainties

Preparation of Silica-bonded Propyl-diethylene-triamine-N- sulfamic Acid as a Recyclable Catalyst for Chemoselective Synthesis of 1,1-Diacetates

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Chinese Journal of Chemistry 2011年第11期29卷 2361-2367页

作者： Nouri Sefat, maryam Deris, Abdolah Niknam, Khodabakhsh Chemistry Department Faculty of Sciences Persian Gulf University Bushehr 75169 Iran

A simple and efficient procedure for the preparation of silica-bonded propyl-diethylene-triamine-N-sulfamic acid （SPDTSA） by reaction of 3-diethylenetriamine-propylsilica （DTPS） and chlorosulfonic acid in chloroform is described. Silica-bonded propyl-diethylene-triamine-N-sulfamic acid is employed as a recyclable catalyst for the synthesis of 1,1-diacetates from aromatic aldehydes and acetic anhydride under mild and solvent-free conditions at room temperature. Catalyst could be recycled for several times without any additional treatment.

关键词： silica-bonded propyl-diethylene-triamine-N-sulfamic acid 1,1-diacetates aromatic aldehydes catalyst solvent-free

Quercetin modulates iron homeostasis and iNOS expression of splenic macrophages in a rat model of iron deficiency anemia

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Chinese Journal of Natural Medicines 2018年第8期16卷 580-589页

作者： maryam Mazhar Nurul Kabir Shabana U Simjee Dr. Panjwani Center for Molecular Medicine and Drug Research International Centerjbr Chemical and Biological SciencesUniversity of Karachi Karachi 75270 Pakistan H.E.J. Research Institute. for Chemistry International CenterJor Chemical and Biological Sciences University of Karachi Karachi 75270 Pakistan

Iron deficiency anemia is one of the most common micronutrient deficient conditions around the globe with various consequences,including the weakened immune *** is widely distributed bioflavonoid;it has been debated for its dual roles in iron ***-iron interaction in the body is a complex mechanism which has not been completely *** present study aimed to investigate the effect of quercetin on iron supplementation in iron deficiency anemia and on i NOS expression in splenic *** rat model of iron deficiency anemia was induced by feeding low iron diet to weanling rats for 20 *** animals were then administered with ferrous sulfate,quercetin,and their combination for 30 *** parameters,histopathological analysis,iron storage,CD68,i NOS and SLC40 expression in rat spleen were *** results showed that quercetin regulated iron absorption,despite SLC40 down-expression,indicating possible alternate route of iron transport,and that quercetin modulated i NOS production in splenic macrophages..

关键词： Iron deficiency anemia Inducible nitric oxide synthase Macrophages Spleen Quercetin

Manganese(III)Salen Complex Immobilized on Fe_(3)O_(4) Magnetic Nanoparticles:The Efficient,Green and Reusable Nanocatalyst

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Chinese Journal of Chemistry 2014年第4期32卷 349-355页

作者： Seyed Mohsen Sadeghzadeh Faeze Daneshfar maryam Malekzadeh Department of Chemistry College of SciencesBirjand UniversityP.O.Box 97175-615BirjandIran Department of Physics College of SciencesBirjand UniversityP.O.Box 97175-614BirjandIran Department of Chemistry Payame Noor UniversityTabasIran

A new Fe_(3)O_(4) magnetic nanoparticles supported manganese salen complex was successfully prepared by at-taching manganese acetates to a novel N,N'-bis(salicylidine)ethylenediamine ligand functionalized Fe_(3)O_(4).The as-prepared catalyst was characterized by TGA,XRD,FTIR,VSM,and *** was found to be an efficient cata-lyst for the synthesis of benzopyranopyrimidines in aqueous *** catalytic activity and ease of recovery from the reaction mixture using external magnet,and several reuse times without significant losses in performance are additional eco-friendly attributes of this catalytic system.

关键词： salen nanocatalyst benzopyranopyrimidine green chemistry solvent free

Halophile plant growth-promoting rhizobacteria induce salt tolerance traits in wheat seedlings(Triticum aestivum L.)

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Pedosphere 2020年第5期30卷 684-693页

作者： maryam SAFDARIAN Hossein ASKARl Ghorbanali NEMATZADEH Adriano SOFO Sari Agricultural Sciences and Natural Resources University Mazandaran ProvinceSari ***(Iran) Department of Biotechnology Faculty of New Technologies and Energy EngineeringShahid Beheshti UniversityTehran 198396941(Iran) Department of European and Mediterranean Cultures:Architecture EnvironmentCultural Heritage(DiCEM)Universita degli Studi dello BasilicataVia Lanera 20Matera 75100(Italy)

Salinity is one of the most important growth-limiting factors for most crops in arid and semi-arid regions;however,the use of plant growth-promoting rhizobacteria isolated from saline soils could reduce the effects of saline stress in *** study aimed to evaluate the efficiency of plant growth-promoting rhizobacteria(PGPRs),isolated from the rhizosphere of halophile plants,for the growth,Na^+/K^+balance,ethylene emission,and gene expression of wheat seedlings{Triticum aestivum L.)grown under saline conditions(100 mmol L^-1 NaCl)for 14 d.A total of 118 isolates obtained from saline soils of the deserts of Iran were tested for their capacity as *** of the 118 isolates,17 could solubilize phosphate(Ca3(P〇4)2),5 could produce siderophores,and 16 could synthesize indole-3-acetic ***,PGPRs were also evaluated for aminocyclopropane-l-carboxylate deaminase activity.A pot experiment was conducted to evaluate the ability of 28 PGPR isolates to promote growth,regulate Na^+/K^+balance,and decrease ethylene emissions in *** most efficient PGPRs were Arthrobacter *** atrophaeus,Enterobacter ashuriae,and Pseudomonas *** expression analysis revealed the up-regulation of H^+-PPase,HKT1,NHX7,CAT,and APX expression in roots of Enterobacter-inocuVdied salt-stressed ***-tolerant rhizobacteria exhibiting plant growth-promoting traits can facilitate the growth of wheat plants under saline *** results indicate that the isolation of these bacteria may be useful for formulating new inoculants to improve wheat cropping systems in saline soils.

关键词： ethylene emission gene expression growth-promoting trait indole-3-acetic acid phosphate solubility saline soil siderophore

Efficiency enhancement of a two-beam free-electron laser using a nonlinearly tapered wiggler

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Chinese Physics B 2012年第3期21卷 201-207页

作者： maryam Zahedian B.Maraghechi M.H.Rouhani Department of Physics Amirkabir University of Technology

A nonlinear and non-averaged model of a two-beam free-electron laser （FEL） wiggler that is tapered nonlinearly in the absence of slippage is presented. The two beams are assumed to have different energies, and the fundamental resonance of the higher energy beam is at the third harmonic of the lower energy beam. By using Maxwell＇s equations and the full Lorentz force equation of motion for the electron beams, coupled differential equations are derived and solved numerically by the fourth-order Runge-Kutta method. The amplitude of the wiggler field is assumed to decrease nonlinearly when the saturation of the third harmonic occurs. By simulation, the optimum starting point of the tapering and the slopes for reducing the wiggler amplitude are found. This technique can be applied to substantially improve the efficiency of the two-beam FEL in the XUV and X-ray regions. The effect of tapering on the dynamical stability of the fast electron beam is also studied.

关键词： free-electron lasers harmonic generation Kolmogorov entropy emciency enhancement