Iranian Journal of Science and Technology (Sciences)
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مجموعههای این پایگاه
ارسال های اخیر
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Genotype profiling of seed storage proteins in wheat (Triticum aestivum L.)
(Springer, 2015-12-01)Seed–storage proteins are important reservoirs of food and energy which are also involved in the determination of bread making quality. Solubility properties of these proteins are traditionally classified into four classes: ...
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Bending and buckling of functionally graded Poisson's ratio nanoscale beam based on nonlocal theory
(Springer, 2015-12-01)Functionally gradedPoisson's ratio structures have been developed for critical protection. In thispaper, the static bending and buckling of FGPR nanoscale beam are studied basedon the nonlocal Timoshenko beam model, in ...
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Some characterizations for Legendre curves in the 3-Dimensional Sasakian space
(Springer, 2015-12-01)In this paper, we give some characterizations for Legendre spherical, Legendre normal and Legendre rectifying curves in the 3-dimensional Sasakian space. Furthermore, we show that Legendre spherical curves are also Legendre ...
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Derivations with power values on multilinear polynomials
(Springer, 2015-12-01)A polynomial 1 2 ( , , , ) n f X X X is called multilinear if it is homogeneous and linear in every one of its variables. In the present paper our objective is to prove the following result: Let R be a prime ...
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Selective method for reduction of Oximes to amines in the presence of Cu nanoparticle
(Springer, 2015-12-01)The selective reduction of oximes with sodium borohydride (NaBH4) in the presence of nano Cu and charcoal was investigated. Cu nanoparticles are widely used as catalysts; efficacious catalyst: copper and copper alloy ...
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The mechanical properties investigation of the CNT doped YBCO high temperature superconductor with ANSYS finite element software
(Springer, 2015-12-01)In this work we simulated the representative volume element (RVE) of carbon nanotube (CNT) which is surrounded by high temperature superconductor (YBCO) by using ANSYS finite element software. First we considered perfect ...
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Analysis of couple stress fluid in helical screw rheometer
(Springer, 2015-12-01)In this paper, the flow of couple stress fluid is investigated in a helical screw rheometer (HSR). By unwrapping the channel, lands, and the outside rotating barrel, the geometry of HSR is approximated as a shallow infinite ...
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Induction of morphological changes in soy protein concentrate through pressure induced graft copolymerization and evaluation of chemical and thermal properties
(Springer, 2015-12-01)Modification of natural polymers like protein by graft co-polymerization is an important method to incorporate the desired properties into the backbone. Soy protein concentrate (SPC) was grafted with ethylmethacrylate (EMA) ...
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Boron effects on wall polysaccharide composition of marshmallow cells
(Springer, 2015-12-01)Marshmallow is a medicinal plant containing mucilage polysaccharides and various phenolic acids. Boron (B) is an essential micronutrient whose necessity for plant growth and development has been attributed to its role in ...
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An investigation on antioxidant and antimicrobial activities of four Inula helenium L. taxa
(Springer, 2015-12-01)The antioxidant activities of methanol (ME), ethanol (EE), water (WE) and ethyl acetate (EAE) extracts of four Inula helenium L. taxa (I. helenium ssp. orygalis (Boiss.) Grierson, I. helenium ssp. pseudohelenium Grierson, ...
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Indoor radon concentrations and effective dose estimation in Al-Karkh side of Baghdad dwellings
(Springer, 2015-12-01)Indoor radon concentrations, the annual effective dose rate and the annual equivalent dose rate to the lung and to the public were measured in the dwellings of 10 neighborhoods located on the west side of the river Tigris ...
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First principles study of H2O and NH3 adsorption on the pristine and B-doped Al12N12 nanocluster
(Springer, 2015-12-01)Adsorption of NH3 and H2O molecules on pristine and B–doped Al12N12 nano–cage was investigated using density functional theory, by means of B3LYP and X3LYP functionals. Both NH3 and H2O molecules were found to bind to an ...
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Spectroscopic investigation of light induced response of a Cyano Azobenzene polymer
(Springer, 2015-12-01)In this paper, absorption spectra of both solution and films of cyano azobenzene polymer are investigated. The analysis of overlapped absorption spectra of polymer, related to trans and cis isomers, shows that the population ...
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Toe-pad morphology in White's tree frog, Litoria caerulea (Family Hylidae)
(Springer, 2013-12-01)The aim of this study was to find any structural differences between the digital pads of forelimbs and hind limbs as well as more careful investigation of the internal and external structures of the toe-pad. In this study, ...
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Approximations in (bi-)hyperideals of Semihypergroups
(Springer, 2013-12-01)We consider the fundamental relation on a semihypergroup to interpret the lower and upper approximations as subsets of the fundamental semigroup and we give some results in this connection. Also, we introduce the notion ...
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OD-Characterization of some orthogonal groups
(Springer, 2013-12-01)In this paper, it was shown that , where and , and , where is not prime and , are OD-characterizable.
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A new algorithm for solving one-dimensional Schrödinger equations in the reproducing kernel space
(Springer, 2013-12-01)On the basis of a reproducing kernel space, an iterative algorithm for solving the one-dimensional linear and nonlinear Schrödinger equations is presented. The analytical solution is shown in a series form in the reproducing ...
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A novel hybrid spectral-variational iteration method (H-S-VIM) for solving nonlinear equations arising in heat transfer
(Springer, 2013-12-01)The purpose of this study is to implement a new modification of the variational iteration method (H-S-VIM), which is a combination of spectral method and variational iteration method for heat transfer problems with high ...
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An artificial neural network model for the determination of leaky confined aquifer parameters: an accurate alternative to type curve matching methods
(Springer, 2015-12-01)A neural network is developed for the determination of leaky confined aquifer parameters. Leakage into the aquifer takes place from the storage in the confining aquitard. The network is trained for the well function of ...
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The generalization of structure factor for rods by polygon section in two-dimensional phononic crystals
(Springer, 2013-12-01)The purpose of this paper is the generalization of structure factor for rods by polygon section in two dimensional phononic crystals. If we use the plane wave expansion method (PWE) for the propagation of acoustic waves ...



