Polyamide 6 (PA6) is used in many applications due to its advantages and improving its properties seems essential. For this purpose in the present study, PA6 was melt compounded with various multi-walled carbon nanotubes (MWCNTs) contents and then was foamed using Azodi carbon amide (ACA) as blowing agent under different injection molding conditions. Morphological properties were investigated u...

let $g$ be a connected graph with vertex set $v(g)$‎. ‎the‎ ‎degree resistance distance of $g$ is defined as $d_r(g) = sum_{{u‎,‎v} subseteq v(g)} [d(u)+d(v)] r(u,v)$‎, ‎where $d(u)$ is the degree‎ ‎of vertex $u$‎, ‎and $r(u,v)$ denotes the resistance distance between‎ ‎$u$ and $v$‎. ‎in this paper‎, ‎we characterize $n$-vertex unicyclic‎ ‎graphs having minimum and second minimum degree resista...

The present study aimed to investigate the increasing solidification rate during directional developed from in situ composites of M7C3/austenite eutectic, with a small portion dendrites, and partial equiaxed structures. M7C3 fibre aligned along solidified direction composites; however, its orientation shape became irregular among dendrites. In composite structure has higher tensile strength tha...

Abstract Nano scale fibers of SiO 2 and TiO with various compositions viscosity parameter have been prepared by electrospinning the precursor tetraethyl orthosilicate (TEOS) titanium (IV) isopropoxide (TiP). Different concentrations polymer polyvinylpyrrolidone (PVP) applied voltages were studied. Distance tip to collector 15 cm flow rate 0.003 mL/h fixed for entire process. The morphology nano...

Metal matrix composites (MMCs) and their hybrid combinations are widely incorporated in research due to enhanced mechanical properties wear resistance. In this work, an investigation is made fabricate AA2024 flyash graphite-reinforced composite for industrial applications determine its suitability by performing testing characterization. Tensile compressive strength, resistance, fracture toughne...

A significant carbon diffusion mobility acceleration as a result of cyclic γ↔ε martensitic transformations in iron-manganese alloy is determined by one- and two-dimensional structure defects of ε-martensite with face-centered close-packed lattice. Such defects (dislocations, low angle sub-boundaries of dislocations, chaotic stacking faults) were formed during cyclic γ↔ε martensitic transformati...

This paper describes the original FaMar method of user's identification. The method bases on the fusion of Wavelet Transform (WT) and Hidden Markov Models (HMM), which is used for three parts of the face (eyes, nose, and mouth) separately.