We demonstrate by numerical simulation that the general features of the loss spectrum of photonic crystal fibres (PCF) with a kagome structure can be explained by simple models consisting of thin concentric hexagons or rings of glass in air. These easily analysed models provide increased understanding of the mechanism of guidance in kagome PCF, and suggest ways in which the high-loss resonances...

Gallium lanthanum sulphide based glasses are proposed as high quality hosts for rare-earth doped, mid-infrared fibre lasers, that would offer compact and rugged sources for gas sensing, atmospheric transmission, and medical applications. The infrared emission spectroscopy of erbium doped glasses and fibres shows the potential of this glass host for the above applications. Mid-infrared transitio...

The goal of this research is to better understand the stress-strain behaviour plain and fibre reinforced M30 grade SCC mixtures. experimental stress strain relationship revealed that all changes had a minor effect on curve's first section. FRSCC mixtures has improved with addition fibres, resulting in lower values for same stresses. At peak loads, mixes, notably SFRSCC HFRSCC showed an increase...

To better understand the influence of prepreg parameters such as surface roughness, fibres/matrix distribution (e.g. presence or absence pure matrix layer on surface) and initial crystallinity, two different carbon fibres/Poly-Ether-Ketone-Ketone prepregs are used to fabricate unidirectional laminate by Vacuum-Bag-Only (VBO) process. By an in-situ monitoring set-up, thickness temperature differ...

In this paper, it is proposed to study the static flexural performance of hybrid (glass and steel) fiber reinforced M30 grade self-compacting concrete (SCC) beams made with glass reinforcement polymer (GFRP) re-bars. Nan Su mix design approach adopted develop plain SCC (PSCC) mixes. Glass fibre (GFRSCC), steel (GFRSCC) (HFRSCC) mixes are prepared using optimum dosages (0.05%) fibres (1%) by vol...

Abstract The mix of two different type fibres, one is natural and another synthetic fibres were employed as reinforcing media in this study, epoxy based polymer resin was the matrix phase. S-glass luffa had been bonded with to create a novel composite by compression moulding measure effect hybridization laminate utilising five sequencing. To determine mechanical characteristics material using t...

This new method utilizes headspace-solid-phase micro extraction (HS-SPME) for pre-concentration of PH3. Phosphine was determined with gas chromatography/pulsed flame photometric detector (PFPD). Spiked samples were used for calculation of phosphine residue in grain. Four types of fibres (100μmPDMS, 85μm-CAR/PDMS, 75μm-CAR/PDMS and 65μm-PDMS/DVB) were tested. The bipolar fibres (CAR/PDMS and PDM...