We report the discovery of two new large H i shells in the direction of the Coalsack nebula. Both shells were observed with the Parkes Radio Telescope as part of the Southern Galactic Plane Survey. The largest shell, GSH 304-00-12, is at a distance of ∼ 1.2 kpc and has derived physical dimensions of 280×200 pc. The second shell, GSH 305+01-24, is at a distance of ∼ 2.2 kpc and has derived dimen...

Certain ferroelectric materials possess dual electrostrictive and piezoelectric characteristics, depending on their specific Curie temperatures. The nonlinear electro-mechanical effect of electrostrictive materials provides stronger actuation performance as compared with that of piezoelectric materials. Due to the complexity of the generic ferroelectric actuators, micro-electromechanics, struct...

Limpets are commonly found on wave-swept rocky shores, where they may be subjected to water velocities in excess of 20 m s(-1). These extreme flows can impose large forces (lift and drag), challenging the animal's ability to adhere to the substratum. It is commonly thought that the conical shape of limpet shells has evolved in part to reduce these hydrodynamic forces while providing a large ape...

Helicotylenchus oleae n. sp. and H. neopaxilli n. sp., from olive roots and soil in Italy, are described and illustrated. Helicotylenchus oleae can be distinguished from the related species H. canadensis and H. tunisiensis especially by the smaller styler, its distinctive tail shape, and a tail longer than one anal body width. Helicotylenchus neopaxilli differs from the close species H. paxilli...

Density functional theory calculations are performed to investigate oxygen dissociation on 38-atom truncated octahedron platinum-based particles. This study progresses our previous work (Jennings et al. Nanoscale, 2014, 6, 1153), where it was shown that flexibility of the outer Pt shell played a crucial role in facilitating fast oxygen dissociation. In this study, the effect of forming M@Pt (M ...

The work described in this paper is concerned with providing a rational asymptotic analysis for the partial wrinkling bifurcation of thin elastic hemispherical segment which upper rim experiences in-plane circular shearing relative to other edge. mathematical structure associated complex-valued boundary eigenvalue problem revealed by using method matched expansions. Our key result three-term fo...

Hollow cylindrical flow mixers achieve a homogeneous mixture with less pressure loss and higher momentum. However, the low volume of mixer due to hollow creates high effects mechanical stresses on mixer. In this study, formed by considering thermal fluids in conical cylinder at different temperatures were examined. The effect taper angle has been studied. examinations carried out using finite e...