The fractal nature of hydrodynamic features during nucleate boiling is illustrated in this study. Earlier reports in the literature explored the fractal nature of the thermal features in pool boiling. In these studies typically the time-delay technique was used to obtain chaos quantifiers in boiling from wall temperature fluctuation measurements. In this study experiments were performed at diff...

Background: As a new intraoperative disinfection method, chlorhexidine-wetted textile napkins have been employed in order to cover the upper and lower eyelid edges, eyelid skin, eyelashes, lid margins and palpebral conjunctiva during phacoemulsification cataract extraction. This study was conducted to compare the antimicrobial activity of textile napkins before and after their use. Methods: Thi...

Health risks posed by dermal contact with PCB-contaminated porous surfaces have not been directly demonstrated and are difficult to estimate indirectly. Surface contamination by organic compounds is commonly assessed by collecting wipe samples with hexane as the solvent. However, for porous surfaces, hexane wipe characterization is of limited direct use when estimating potential human exposure....

HYPOTHESIS The process of dried blood spot sampling involves simultaneous spreading and penetration of blood into a porous filter paper with subsequent evaporation and drying. Spreading of small drops of blood, which is a non-Newtonian liquid, over a dry porous layer is investigated from both theoretical and experimental points of view. EXPERIMENTS AND THEORY A system of two differential equa...

1. INTRODUCTION. Physics often provides mathematics not only with a problem, but also with the idea of a solution. Physical reasoning has traditionally been a fruitful source of mathematical invention, having played a key role in some of the main discoveries of Archimedes, Bernoulli, and Riemann, among many others. In this article we give a much more modest example of a mathematical result that...

We construct a novel model for the steady-state contact angles of liquid droplets at wetted substrate. The non-removable, thin film covering substrate is governed by intermolecular forces between molecules and solid, which we describe using standard disjoining pressure approximation. Balancing against surface tension, find smooth shape liquid. show that can extract an effective angle from regio...

In this study, nitrogen fertilizer was applied to corn (Zea mays L.) at conventional (excessive) and recommended levels, and the growth response was assessed by measuring plant height and stem perimeter. Corn plant maximum height was observed in recommended rates of N fertilizer treatment, and the height without N fertilizer was the same as that receiving excess N fertilizer. Stem perimeter was...