http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Masoud Salavati-Niasari,Faezeh Soofivand,Masoud Salavati-Niasari,Samira Bagheri 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.26 No.-
In this paper, barrium hexaferrite nanoparticles have been successfully synthesized via sol–gel auto combustion method based on the reaction between Ba(NO3)2 and Fe(NO3)3 in water, in present of maleic acid as capping agent and fuel. Also, various polymers used to obtaining pure phase barrium hexaferrite. The products were characterized by X-ray diffraction, scanning electron microscopy, X-ray energy dispersive spectroscopy analysis. To investigate the effects of amount of maleic acid and the kind of polymer on the morphology of products and finding optimal condition, several experiments were carried out. It was found that the phase and morphology of products could be influenced by these parameters. Vibrating sample magnetometer (VSM) was used to study the magnetism properties of BaFe12O19 samples.
QoSNC: A Novel Approach to QoS-Based Network Coding for Fixed Networks
Salavati, Amir Hesam,Khalaj, Babak Hossein,Crespo, Pedro M.,Aref, Mohammad Reza The Korea Institute of Information and Commucation 2010 Journal of communications and networks Vol.12 No.1
In this paper, we present a decentralized algorithm to find minimum cost quality of service (QoS) flow subgraphs in network coded multicast schemes. The main objective is to find minimum cost subgraphs that also satisfy user-specified QoS constraints, specifically with respect to rate and delay demands. We consider networks with multiple multicast sessions. Although earlier network coding algorithms in this area have demonstrated performance improvements in terms of QoS parameters, the proposed QoS network coding approach provides a framework that guarantees QoS constraints are actually met over the network.
Salavati-Niasari, Masoud,Mirsattari, Seyed Nezamodin,Saberyan, Kamal Korean Chemical Society 2009 Bulletin of the Korean Chemical Society Vol.30 No.2
Copper(II) complexes with tetraoxo dithia tetraaza macrocyclic ligands; [18]ane$N_4S_2$: 1,4,10,13-tetraaza-5,9,14,18-tetraoxo-7,16-dithia-cyclooctadecane, [20]ane$N_4S_2$: 1,5,11,15-tetraaza-6,10,16,20-tetraoxo-8,18-dithia-cyclocosane,Bzo2[18]ane$N_4S_2$: dibenzo-1,4,10,13-tetraaza-5,9,14,18-tetraoxo-7,16-dithia-cyclooctadecane, Bzo2[20]ane$N_4S_2$: dibenzo-1,5,11,15-tetraaza-6,10,16,20-tetraoxo-8,18-dithia-cyclocosane; were entrapped in the nanopores of zeolite-Y by a two-step process in the liquid phase: (i) adsorption of [bis(diamine)copper(II)] (diamine = 1,2-diaminoethane, 1,3-diaminopropane, 1,2-diaminobenzene, 1,3-diaminobenzene); $[Cu(N-N)_2]^{2+}$-NaY; in the nanopores of the zeolite, and (ii) in situ template condensation of the copper(II) precursor complex with thiodiglycolic acid. The obtained complexes and new host-guest nanocomposite materials; $[Cu([18]aneN_4S_2)]^{2+}-NaY,\;[Cu([20]aneN_4S_2)]^{2+}-NaY,\;[Cu(Bzo_2[18]aneN_4S_2)]^{2+}-NaY,\;[Cu(Bzo_2[20]aneN_4S_2)]^{2+}$-NaY; have been characterized by elemental analysis FT-IR, DRS and UV-Vis spectroscopic techniques, molar conductance and magnetic moment data, XRD and, as well as nitrogen adsorption. Analysis of data indicates all of the complexes have been encapsulated within nanopore of zeolite Y without affecting the zeolite framework structure.
Salavati-Niasari, Masoud,Bazarganipour, Mehdi Korean Chemical Society 2009 Bulletin of the Korean Chemical Society Vol.30 No.2
The chemical modification of multi-wall carbon nanotubes (MWNTs) is an emerging area in material science. In the present study, hydroxyl functionalized oxovanadium(IV) Schiff-base; N,N'-bis(4-hydroxysalicylidene)-ethylene-1, 2-diamineoxovanadium(IV), [VO($(OH)_2$-salen)]; has been covalently anchored on modified MWNTs. The new modified MWNTs ([VO($(OH)_2$-salen)]-MWNTs]) have been characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron (XPS), UV-Vis, Diffuse reflectance (DRS), FT-IR spectroscopy and elemental analysis. The analytical data indicated a composition corresponding to the mononuclear complex of tetradentate Schiff-base ligand. The characterization of the data showed the absence of extraneous complex, retention of MWNTs and covalently anchored on modified MWNTs. Liquid-phase oxidation of cyclohexane with $H_2O_2$ to a mixture of cyclohexanone, cyclohexanol and cyclohexane-1,2-diol in $CH_3$CN have been reported using oxovanadium(IV) Schiff-base complex covalently anchored on modified MWNTs as catalysts. This catalyst is more selective toward cyclohexanol formation.
Salavati, Hadi,Alizadeh, Yoness,Berto, Filippo Techno-Press 2014 Structural Engineering and Mechanics, An Int'l Jou Vol.51 No.4
Functionally graded steels (FGSs) are a family of functionally graded materials (FGMs) consisting of ferrite (${\alpha}$), austenite (${\gamma}$), bainite (${\beta}$) and martensite (M) phases placed on each other in different configurations and produced via electroslag remelting (ESR). In this research, the flow stress of dual layer austenitic-martensitic functionally graded steels under hot deformation loading has been modeled considering the constitutive equations which describe the continuous effect of temperature and strain rate on the flow stress. The mechanism-based strain gradient plasticity theory is used here to determine the position of each layer considering the relationship between the hardness of the layer and the composite dislocation density profile. Then, the released energy of each layer under a specified loading condition (temperature and strain rate) is related to the dislocation density utilizing the mechanism-based strain gradient plasticity theory. The flow stress of the considered FGS is obtained by using the appropriate coefficients in the constitutive equations of each layer. Finally, the theoretical model is compared with the experimental results measured in the temperature range $1000-1200^{\circ}C$ and strain rate 0.01-1 s-1 and a sound agreement is found.
Masoud Salavati-Niasari,Mehdi Bazarganipour 대한화학회 2009 Bulletin of the Korean Chemical Society Vol.30 No.2
The chemical modification of multi-wall carbon nanotubes (MWNTs) is an emerging area in material science. In the present study, hydroxyl functionalized oxovanadium(IV) Schiff-base; N,N'-bis(4-hydroxysalicylidene)-ethylene-1, 2-diamineoxovanadium(IV), [VO((OH)2-salen)]; has been covalently anchored on modified MWNTs. The new modified MWNTs ([VO((OH)2-salen)]-MWNTs]) have been characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron (XPS), UV-Vis, Diffuse reflectance (DRS), FT-IR spectroscopy and elemental analysis. The analytical data indicated a composition corresponding to the mononuclear complex of tetradentate Schiff-base ligand. The characterization of the data showed the absence of extraneous complex, retention of MWNTs and covalently anchored on modified MWNTs. Liquid-phase oxidation of cyclohexane with H2O2 to a mixture of cyclohexanone, cyclohexanol and cyclohexane-1,2-diol in CH3CN have been reported using oxovanadium(IV) Schiff-base complex covalently anchored on modified MWNTs as catalysts. This catalyst is more selective toward cyclohexanol formation.
Hadi Salavati,Yoness Alizadeh,Filippo Berto 국제구조공학회 2014 Structural Engineering and Mechanics, An Int'l Jou Vol.51 No.4
Functionally graded steels (FGSs) are a family of functionally graded materials (FGMs) consisting of ferrite (α), austenite (γ), bainite (β) and martensite (M) phases placed on each other in different configurations and produced via electroslag remelting (ESR). In this research, the flow stress of dual layer austenitic-martensitic functionally graded steels under hot deformation loading has been modeled considering the constitutive equations which describe the continuous effect of temperature and strain rate on the flow stress. The mechanism-based strain gradient plasticity theory is used here to determine the position of each layer considering the relationship between the hardness of the layer and the composite dislocation density profile. Then, the released energy of each layer under a specified loading condition (temperature and strain rate) is related to the dislocation density utilizing the mechanism-based strain gradient plasticity theory. The flow stress of the considered FGS is obtained by using the appropriate coefficients in the constitutive equations of each layer. Finally, the theoretical model is compared with the experimental results measured in the temperature range 1000-1200°C and strain rate 0.01-1 s-1 and a sound agreement is found.
Masoud Salavati-Niasari,Seyed Nezamodin Mirsattar,Kamal Saberyan 대한화학회 2009 Bulletin of the Korean Chemical Society Vol.30 No.2
Copper(II) complexes with tetraoxo dithia tetraaza macrocyclic ligands; [18]aneN4S2: 1,4,10,13-tetraaza-5,9,14,18- tetraoxo-7,16-dithia-cyclooctadecane, [20]aneN4S2: 1,5,11,15-tetraaza-6,10,16,20-tetraoxo-8,18-dithia-cyclocosane, Bzo2[18]aneN4S2: dibenzo-1,4,10,13-tetraaza-5,9,14,18-tetraoxo-7,16-dithia-cyclooctadecane, Bzo2[20]aneN4S2: dibenzo- 1,5,11,15-tetraaza-6,10,16,20-tetraoxo-8,18-dithia-cyclocosane; were entrapped in the nanopores of zeolite-Y by a two-step process in the liquid phase: (i) adsorption of [bis(diamine)copper(II)] (diamine = 1,2-diaminoethane, 1,3-diaminopropane, 1,2-diaminobenzene, 1,3-diaminobenzene); [Cu(N-N)2]2+-NaY; in the nanopores of the zeolite, and (ii) in situ template condensation of the copper(II) precursor complex with thiodiglycolic acid. The obtained complexes and new host-guest nanocomposite materials; [Cu([18]aneN4S2)]2+-NaY, [Cu([20]aneN4S2)]2+- NaY, [Cu(Bzo2[18]aneN4S2)]2+-NaY, [Cu(Bzo2[20]aneN4S2)]2+-NaY; have been characterized by elemental analysis FT-IR, DRS and UV-Vis spectroscopic techniques, molar conductance and magnetic moment data, XRD and, as well as nitrogen adsorption. Analysis of data indicates all of the complexes have been encapsulated within nanopore of zeolite Y without affecting the zeolite framework structure.
Pb(OH)I-graphene composite: Synthesis and characterization
Masoud Salavati-Niasari,Farnosh Tavakoli 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.21 No.1
Pb(OH)I-graphene nanocomposite, has been successfully prepared via combination sonochemical andhydrothermal methods. Lead nitrate, lithium iodide and N,N-bis(salicylidene)-ethylenediamine(H2salen) were applied as starting reagents to fabricate Pb(OH)I-graphene nanocomposite. Forpreparing nanoparticles (NPs)-graphene composite post-graphenization method was applied. Insynthesis NPs-graphene with post-graphenization method, graphite oxide as starting reagent wassynthesized via Hummer method. The effect of ultrasonic irradiation and H2salen were investigated onthe particle size of nanoparticles and their distribution on the graphene sheets. H2salen and sonicationtreatment were confirmed to be the crucial factors that determining the formation of one-dimensionalPb(OH)I micro/nanostructures on the surface of graphene nanosheets. The as-produced nanocmpositeswere characterized with the aid of XRD, SEM, TEM, EDS and FT-IR.
Masoud Salavati-Niasari,Zeynab Behfard,Mahnaz Maddahfar 한국공업화학회 2014 Journal of Industrial and Engineering Chemistry Vol.20 No.6
A hydrothermal method was used to fabricate Bi2S3 with different morphologies (nanoparticles,nanoflaked flowers and nanothorny columniform structures) using bismuth(III) monosalicylate[BiO(C7H5O3)] and three kinds of sulfur sources [L-cysteine, thiourea and thioacetamide in water,respectively]. The influences of the reaction conditions are discussed and possible mechanism for theformation of different Bi2S3 nanostructures is proposed. The products were characterized by XRD, UV–vis, PL, FT-IR. Bismuth salicylate, which is known to be a complex, may play a critical role as a precursorand a template for the growth of linear bismuth sulfide nanorods.