Abstract Lubricant-infused textured surfaces have gained much attention as liquid-repellent owing to high surface stability compared their superhydrophobic counterparts. In this study, polydimethylsiloxane (PDMS) micro-structures (width: 20 μ m, height: 80 m), were fabricated using soft lithography. Effects of micro-structural geometry, including pillar-type (pillar, discrete ridge) and hole-ty...

Although several studies have approached the environmental or economic impacts derived from adoption of circular economy's principles by businesses, social dimension model at micro-level is underexplored in literature. To fill this gap, study defines and analyses different categories related to a business assess report holistic economy micro-level. This paper eminently reflective, methodology m...

This paper proposes a method of micro-fabrication for the formation of complex non-planar shapes by depositing a colloid evaporative droplet onto topographically structured surfaces. The micro-droplet composed of polyurethane (PU) was self-driven by surface tension to adjust their three-dimensional (3D) shapes bound with the surface of the micro-well array. The micro-wells formed from poly-dime...

In experiments with micro-worlds, subjects are required to interact with a computer simulation of a complex dynamic system for some period of time, bringing the simulation to some specified state and keeping it there. There are now a number of such simulations available. They allow one to bridge the gap between the laboratory and the field and make it possible to study the circular relation bet...

We present a computational fluid dynamics (CFD) model for the swimming of micro organisms with a single helical flagellum in circular channels. The CFD model is developed to obtain numerical solutions of Stokes equations in three dimensions, validated with experiments reported in literature, and used to analyze the effects of geometric parameters, such as the helical radius, wavelength, radii o...

This paper presents a neurocomputational model for estimation of feed-position in circular microstrip antenna. The difficulty in computing the feed position in circular microstrip antenna lies due to the involvement of a large number of physical parameters including their associated optimal values. It is indeed very difficult to formulate an exact numerical solution merely on practical observat...

We report the first fabrication of vertical three-dimensional micro-Fresnel lenses with polysilicon materials by surface micromachining technique. Micro-Fresnel lenses play a very important role in micro-optics because of their thin film structures and their ability to achieve very short focal lengths. Although micro-Fresnel lenses have been studied and well understood [ 11, the lens planes usu...

Bubble nuclei populations in the wake of a circular cylinder under cavitating and noncavitating conditions were measured using a Phase Doppler Anemometry (PDA) system. In addition, the mean velocity defect and the turbulent fluctuations were monitored in order to try to understand the nuclei population dynamics within the flow. At the Reynolds numbers of these experiments (20000 + 33000) the la...

This work presents a laterally rotating micromachined platform integrated under optical waveguides to control the in-plane propagation direction of light within a die to select one of multiple outputs. The platform is designed to exhibit low constant optical losses throughout the motion range and is actuated electrostatically using an optimized circular comb drive. An angular motion of ±9.5◦ us...