Iranian Journal of Science and Technology (Sciences)
مرور بر اساس
مجموعههای این پایگاه
ارسال های اخیر
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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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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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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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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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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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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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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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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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Global analysis of a delay SVEIR epidemiological model (Springer, 2013-12-01)This paper is concerned with global analysis of a delay SVEIR epidemiological model in a population of varying size. By using Lyapunov stability method and LaSalle's invariance principle for delay systems, we prove that ...
 
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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 ...
 
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Strain analysis of the Darvazeh Quran fault, Zagros Mountains, Iran (Springer, 2013-12-01)The Zagros Fold-and-Thrust Belt is tectonically active and often has active faults with insensible and slow motions. Determining the rate of movement and displacement in these faults requires very precise measurements. One ...
 
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Numerical study of some nonlinear wave equations via Chebyshev collocation method (Springer, 2013-12-01)The numerical methods are of great importance for approximating the solutions of nonlinear ordinary or partial differential equations, especially when the nonlinear differential equation under consideration faces difficulties ...
 
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Theoretical Calculation of Energies of Projectile like Fragments in 76Ge (635 MeV) + 198Pt Deep-Inelastic Collisions (Springer, 2013-12-01)The theoretical calculation of the energies of projectile like fragments (PLFs) using the heavy-ion reactions between 76Ge and 198Pt are reported in this article. The incident beam energy was 635 MeV. The calculated values ...
 
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Theoretical studies of the optical spectra and EPR parameters for VO2+ ions in Zn(antipyrine)2(NO3)2 (Springer, 2013-12-01)The optical spectrum band positions and EPR parameters (g factors g//, g^ and hyperfine structure constants A// and A^) for VO2+ ions in Zn(antipyrine)2(NO3)2 are theoretically studied from the complete diagonalization (of ...
 
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On the multiplication operator on analytic function spaces (Springer, 2013-12-01)Let be a Hilbert space of functions analytic on a plane domain such that for every in the functional of evaluation at is bounded. Assume further that contains the constants and admits multiplication by the independent ...
 
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Controls on air pollution over a semi-enclosed basin, Tehran: A synoptic climatological approach (Springer, 2012-11-01)In this study, a new array of meteorological elements and a synoptic climatologic classification to produce abaseline climate and to derive meteorological factors that are effective on air pollution in Tehran, which is ...
 
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First record of Anaciaeshna jaspidea and Epophthalmia vittata vittata (Odonata: Anisoptera) from Pakistan (Springer, 2013-12-01)During a survey of Sindh and Punjab provinces of Pakistan, two dragonfly genera were collected and identified for the first time from the country. Anaciaeshna(Family Aeshnidae) is a genus of large dragonflies. Representatives ...
 
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Electronic Properties of Titanium using density functional theory (Springer, 2012-11-01)In the present work, the electronic properties of titanium were studied in three phases of α, β and ω using the Density Function Theory (DFT). The full potential augmented plane wave plus local orbital (FLAPW+lo) method was ...
 



