Short range hydrodynamic and electrosensory signals are important during final stages of prey capture in elasmobranchs (sharks, skates and rays), and may be particularly useful for dorso-ventrally flattened batoids with mouths hidden from their eyes. In stingrays, both the lateral line canal and electrosensory systems are highly modified and complex with significant differences on ventral surfa...

Vertical dense effluent discharges are popular in outfall system designs. jets provide the opportunity to be efficient for a range of ambient currents, where jet is pushed away so as not fall on itself. This study focuses worst-case scenario dilution and mixing such jets: vertical with no current, shallow water, impinges water surface. provides conservative design criteria systems. The numerica...

we present observation of polar coronal hole plumes with foot point jets that shows evidence of longitudinal acceleration. the series of event, occurring in the north coronal hole on 10 july 2010, was observed by the aia telescopes of the solar dynamic observatory (sdo mission) in the euv lines, with unprecedented details. the structures along the plume show a propagating outward velocity of ab...

in this study, confined impinging liquid jets are used to produce nanoparticles of carbamazepine (cbz). the effect of operating parameters, such as the kind of solvent,cbz concentration, flow rate of solution and antisolvent on particle size, are experimentally investigated. the scanning electron micrograph (sem) photomicrographs show that nanodrug with smaller particle is achievable by using s...

This paper describes a quasi-3D Bayesian inversion of oceanographic tracer data from the South Atlantic Ocean. Initially, one active neutral-density layer is considered with an upper and lower boundary. The available hydrographic data are linked to model parameters (water velocities, diffusion coefficients) via a 3D advection–diffusion equation. A robust solution to the inverse problem can be o...

This paper presents high resolution X-ray observations with Chandra of NGC 4258 and infers the nature of the so called " anomalous arms " in this galaxy. The anomalous arms dominate the X-ray image; diffuse X-ray emission from the " plateaux " regions, seen in radio and Hα imaging, is also found. X-ray spectra have been obtained at various locations along the anomalous arms and are well describ...

Changes in the ventilation of the oxygen minimum zone (OMZ) of the tropical North Atlantic are studied using oceanographic data from 18 research cruises carried out between 28.58 and 238W during 1999–2008 as well as historical data referring to the period 1972–85. In the core of the OMZ at about 400-m depth, a highly significant oxygen decrease of about 15 mmol kg is found between the two perio...

Introduction: The Cassini spacecraft detected a gas plume emanating from Saturn’s icy satellite Enceladus [13]. Its composition (91% H2O, 3.2% CO2, 4% N2, and 1.6% CH4) was inferred based on measurements by the Ion and Neutral Mass Spectrometer [2]. Jets from warm (110-160 K) fissures (“sulci”) supply the plume [3], and boiling water in a subsurface reservoir may power the jets [1]. Liquid wate...

This paper conducted a computational fluid dynamics study of bubbly jets (not bubble plumes due to pure gas injection) in crossflow explore the hydrodynamics that are still unknown. A three-dimensional model was developed, calibrated, and validated by coupling Euler–Euler two-fluid with unsteady Reynolds-averaged Navier–Stokes approach OpenFOAM. The results showed modeled void fraction, velocit...

Experimental data on differential diffusion between two species with large and quite disparate Schmidt numbers were obtained in a turbulent water jet by optically measuring the two species concentrations simultaneously. Experimental conditions were chosen so that the species were dilute and did not affect the water density thereby avoiding inertial effects. Differential diffusion was found to b...