Abstract Two approximate analytical expressions based on third degree polynomial and Akbari–Ganji’s method (AGM) were derived for the reaction/diffusion controlled kinetics of an immobilized enzyme ( $$IE$$ IE ) systems. The approximation methods predict substrate concentration profile ...

Let G be an edge-colored copy of Kn, where each color appears on at most n/2 edges (the edgecoloring is not necessarily proper). A rainbow spanning tree is a spanning tree of G where each edge has a different color. Brualdi and Hollingsworth [4] conjectured that every properly edge-colored Kn (n ≥ 6 and even) using exactly n−1 colors has n/2 edge-disjoint rainbow spanning trees, and they proved...

It is commonly assumed that positive mood improves human creativity and that the neurotransmitter dopamine might mediate this association. However, given the non-linear relation between dopamine and flexibility in divergent thinking (Akbari Chermahini and Hommel, 2010), the impact of mood on divergent kinds of creativity might depend on a given individual's tonic dopamine level. We tested this ...

Breast cancer is the most common cancer among women. In 2008, 23% (1.38 million) of the total new cancer cases and 14% (458,400) of total cancer deaths among females were associated with breast cancer (Ferlay, 2010; Jemal et al., 2011). While the prevalence of breast cancer has been increased worldwide (Hortobagy et al., 2005; Anderson et al., 2008), the highest incidence has been reported in A...

The closed neighbourhood NG[e] of an edge e in a graph G is the set consisting of e and of all edges having a common end vertex with e. Let f be a function on the edges of G into the set {−1, 1}. If e∈NG[x] f(e) ≥ 1 for every x ∈ E(G), then f is called a signed edge domination function of G. The minimum value of ∑ x∈E(G) f(x), taken over every signed edge domination function f of G, is called s...

Breast cancer (BC) is the most common malignancy in women and the leading cause of cancer death in females worldwide, accounting for 23% (1.38 million) of total new cancer cases and 14% (458,400) of the total cancer deaths in 2008. In the USA, the estimated number of new cases of BC in 2012 was 226,870, of which 39,510 resulted in death (American Cancer Society, 2012). The incidence rates of br...

In this paper, we propose a learning automata-based iterative algorithm for approximating a near optimal solution to the vertex coloring problem. Vertex coloring is a well-known NP-hard optimization problem in graph theory in which each vertex is assigned a color so that no two adjacent vertices have the same color. Each iteration of the proposed algorithm is subdivided into several stages, and...

0017-9310/$ see front matter 2011 Elsevier Ltd. A doi:10.1016/j.ijheatmasstransfer.2011.04.028 ⇑ Corresponding author. E-mail addresses: [email protected], maa59@ URL: http://www.mohsenakbari.com (M. Akbari). This paper outlines a novel approximate model for determining the pressure drop of laminar, singlephase flow in slowly-varying microchannels of arbitrary cross-section based on the solu...

In this paper an intelligent separation system, based on artificial neural networks (ANNs), for classifying four different varieties of Iranian pistachio nuts, namely, Kaleghouchi (Ka), Akbari (Ak), Badami (Ba) and Ahmadagaee (Ah) is presented. To develop the ANN models a total of 3200 pistachio sound signals, 800 samples for each variety, were recorded. Features of pistachio nut varieties were...

the study was carried out to evaluate the effects of soil application of humic acid and calciumon morpho-physiological traits and na+, mg2+, ca2+ uptake of pistachio seedling (akbari) grown under salt stress.  a completely randomized design was used with four replications in greenhouse conditions. the experimental treatment consisted of four levels of humic acid (bis humic) (0, 4, 8 and 12 gr k...