In this paper, the effects of stacking sequence and ply orientation on mechanical properties pineapple leaf fibre (PALF)/carbon hybrid laminate composites were investigated. The laminates fabricated using a vacuum infusion technique in which sequences orientations varied, divided into categories cross-ply symmetric, angle-ply symmetric quasi-isotropic. results tensile flexural tests showed that...

The time course of changes in plasma bone turnover markers following an acute bout of resistance training (RT) or plyometrics (PLY) has not been well characterized. This study is the first to compare the acute response of bone formation and resorption markers to a single bout of RT or PLY. Using a partially randomized, cross-over study design, 12 recreationally active men, aged 43 ± 5 yr, each ...

Deftection of oriented ftakeboards, random ftakeboards, and southern pine plywood was evaluated for small size bending specimens and concentrated loads applied to panels nailed on framing lumber. The ftakeboards con~ed a mixture of southern hardwoods and pine; the plywood was 3-ply l/2-inch and 4-ply ~-inch construction. Tests of both panel ~ons, all load levels and RH cycles showed plywood ben...

We initiate the study of the vertex-ply of straight-line drawings, as a relaxation of the recently introduced ply number. Consider the disks centered at each vertex with radius equal to half the length of the longest edge incident to the vertex. The vertex-ply of a drawing is determined by the vertex covered by the maximum number of disks. The main motivation for considering this relaxation is ...

Streptococcus pneumoniae is the world's leading cause of pneumonia, bacteremia, meningitis and otitis media. A major pneumococcal virulence factor is the cholesterol-dependent cytolysin, which has the defining property of forming pores in cholesterol-containing membranes. In recent times a clinically significant and internationally successful serotype 1 ST306 clone has been found to express a n...

Abstract Pressure vessels enable liquids and gases to be stored transported safely, finding pervasive use in many industries. These types of structure can manufactured into different shapes from various materials satisfy the requirements their specific applications. Maximum allowable pressure is an important factor that should considered carefully design process. Bend-free vessels, are enabled ...

The generalized differential quadrature (GDQ) method is used to obtain the computational results of two-layer cross-ply laminated shell under rapid uniform heat induced vibration. In the thermally insulated vibration analyses of a laminated shell, the sudden uniform heat input over its lower surface only and temperature load is linear of axial coordinate. The GDQ method provides a method for ca...

This paper is focused on the analysis of stress-strain and displacement for compressive load on the fibrereinforced composite laminates. Three different orientations of fibers are analyzed with and without the circular cut-outs. Also different dimensions of circular cut-outs are applied on the laminates at different compressive loading conditions. This analysis is carried out using the finite e...

BACKGROUND Intranasal inoculation of Streptococcus pneumoniae D39 serotype 2 causes fatal pneumonia in mice. The cytotoxic and inflammatory properties of pneumolysin (PLY) have been implicated in the pathogenesis of pneumococcal pneumonia. METHODS To examine the role of PLY in this experimental model we performed ELISA assays for PLY quantification. The distribution patterns of PLY and apopto...

The first stage of the RTM process concerns the preforming of the part. During the preforming of multilayered reinforcements, frictions between the plies occur. An experimental device designed to analyse the ply/ply, ply/tool and yarn/yarn frictions has been set up. Specific contact behaviour for ply/ply friction is directly related to shocks taking place between overhanging yarns of each sampl...