Abstract: nanocrystalline nickel samples with the grain size of ~25 nm were prepared via direct current electrodeposition andaluminized for different durations by pack cementation method at 500 means of SEM, EDS and XRD techniques. According to results, short time aluminizing resulted in the formation of asingle aluminide layer whereas at long duration two distinct aluminide layers were formed....

Recently, increase in the cost of fossil fuels and taking into consideration the environmental effects of exploiting them, caused many researchers and governments to find some ways to make use of renewable energies more cost-effectively. Solar energy is a category of renewable energies which could be harvested via several technologies. One of the most practical methods is using parabolic trough...

One of the problems in algebraic geometry motivated by conformal field theory is to study the behaviour of moduli space of semistable parabolic bundles on curve and its generalized theta functions when the curve degenerates to a singular curve. Let X be a smooth projective curve of genus g, and UX be the moduli space of semistable parabolic bundles on X , one can define canonically an ample lin...

Suppose $F$ is a finite extension of $\mathbb{Q}_p$, $G$ the group $F$-points connected reductive $F$-group, and $I_1$ pro-$p$-Iwahori subgroup $G$. We construct two spectral sequences relating derived functors on mod-$p$ representations to analogous Hecke modules coming from cohomology. More specifically: (1) using results Ollivier--Vign\'eras, we provide link between right adjoint parabolic i...

Let π1,…,πk be smooth irreducible representations of p-adic general linear groups. We prove that the parabolic induction product π1×⋯×πk has a unique quotient whose Langlands parameter is sum parameters all factors (cyclicity property), assuming same property holds for each products πi×πj (i<j), and but at most two πi×πi remains (square-irreducibility property). Our technique applies recently d...

In the present work the efficiency of a solar parabolic trough has been investigated experimentality. parabolic trough solar collector constitute a proven source of thermal energy for industrial process heat and power genaration. The impact of  using the partially porous media in the absorber on the efficiency of PTC (parabolic trough collector) has been investigated. The porosity of copper foa...

Vibrations of plate and plate type structures made up of composite materials have a significant role in various industrial mechanical structures, aerospace industries and other engineering applications. The main aim of the present paper is to study the two dimensional thermal effect on the vibration of non-homogeneous square plate of variable thickness having clamped boundary. It is assumed tha...

objective: this study was conducted with the aim to investigate and compare iranian produced and foreign oxytocin for use in induction of labor. materials and methods: this random clinical trial was conducted on a population of 198 pregnant women with live fetus and cephalic presentation and conditions conducive to induction of labor, monitored by obstetricians and gynecologists. they were rand...