In this paper, we report a free-standing thin lamella consisting of nanoparticles with controllable shape. A self-assembly technique is utilized to obtain this sheet in a step by step fashion with nanoparticles and polymer single crystals as the basic building blocks. Inside the thin lamella, nanoparticles are not only immobilized on the surface of a polymer single crystal, which functions as a...

Three new species of the streptaxid snail genus Perrottetia are described from north and northeastern Thailand, Perrottetia aquilonaria sp. n., Perrottetia dermapyrrhosa sp. n. and Perrottetia phuphamanensis sp. n. Each species is endemic to a single or a few limestone mountain ranges. The species are characterized by the morphology of their genital organs, as well as by shell characters. Perro...

The impact of droplets at increased environmental pressure is important in many industrial applications. Previous studies mainly considered the process standard or reduced pressure, and effect high unclear. In this study, we experimentally investigate ethanol on dry smooth surfaces pressure. effects splashing rupture crown during are analyzed. results show that surrounding gas with can lead to ...

Lamellar nanocondensates in partial epitaxy with larger-sized multiply twinned particles (MTPs) or alternatively in the form of multiple-walled tubes (MWTs) having nothing to do with MTP were produced by the very energetic pulse laser ablation of Au target in vacuum under specified power density and pulses. Transmission electron microscopic observations revealed (111)-motif diffraction and low-...

The study of the mechanical properties of materials at nanoand sub-micrometer scales is motivated by increasing need for such materials due to miniaturization of engineering and electronic components, development of nanostructured materials, thin film technology and surface science. When the material volume is lowered, characteristic dimensions are reduced that control the material properties a...

We present evidence from neutron diffraction measurements and molecular dynamics (MD) simulations of three different monolayer phases of the intermediate-length alkanes tetracosane (n-C(24)H(50) denoted as C24) and dotriacontane (n-C(32)H(66) denoted as C32) adsorbed on a graphite basal-plane surface. Our measurements indicate that the two monolayer films differ principally in the transition te...

Droplet impact on dry, smooth surfaces remains an issue for a variety of important applications such as fuel injection, spray cooling, metallurgy, pesticides and coatings. The mechanisms that initiate splashing are highly complex and differ from those on rough or pre-wetted surfaces. In this work, droplet wettability on a smooth, dry surface is examined to quantitatively evaluate its influence ...

This paper proposes a multi-level hierarchical model for the Tokay gecko (Gekko gecko) adhesive system and analyses the digital behaviour of the G. gecko under macro/meso-level scale. The model describes the structures of G. gecko's adhesive system from the nano-level spatulae to the sub-millimetre-level lamella. The G. gecko's seta is modelled using inextensible fibril based on Euler's elastic...

The changes in the alignment of F-actin bundles in epithelial cells were studied, mainly using NBD-phallacidin, as the isolated corneal epithelium started to spread along the surface of Millipore filter. The epithelial cells at the margin were found to make the transition from a stationary to a motile state in two steps: first, from polygonal cells, in which F-actin was deposited along the cell...

This paper proposes a multi-level hierarchical model for the Tokay gecko (Gekko gecko) adhesive system and analyses the digital behaviour of the G. gecko under macro/meso-level scale. The model describes the structures of G. gecko’s adhesive system from the nano-level spatulae to the sub-millimetre-level lamella. The G. gecko’s seta is modelled using inextensible fibril based on Euler’s elastic...