Reservoirs are manmade habitats, intermediate between rivers and lakes, presenting distinct hydrological and morphometric characteristics, with differential mean water residence time. They also present proper vertical and horizontal organisations, and their evolution depends on several variables acting on different special and temporal scales. The water quality evolution of the Itaipu Reservoir...

By improving numerical representations of coastal circulation, sediment properties, and waves, we seek to develop reliable estimates of sediment concentration, transport and deposition. Efforts to include sediment transport calculations within three-dimensional numerical hydrodynamic models can increase our ability to predict suspended sediment concentrations, water column turbidity, and seabed...

API proliferation is expected to grow in the coming years. This growth further increased by recent trends digital transformation efforts undertaken organizations across spectrum. paper discusses benefits can leverage moving towards an economy and proposes a framework for execute successfully.

A suspension of wastewater and treatment organisms in an aerated tank is known as the activated sludge process. The activated sludge process can be used for onsite wastewater treatment, generally requiring the addition of an air pump to deliver oxygen to the system and provide mixing energy. Suspended growth treatment systems can be secondary only (require supplemental primary treatment) or com...

A dedicated 4-m-high vertical wind tunnel has been designed and constructed at the University of Geneva in collaboration with the Groupe de compétence en mécanique des fluides et procédés énergétiques. With its diverging test section, the tunnel is designed to study the aero-dynamical behavior of non-spherical particles with terminal velocities between 5 and 27 ms(-1). A particle tracking veloc...

The solution of a case study problem suspended payload sway damping by moving pivot base in vertical direction is presented. Unlike for the classical anti-sway control horizontal direction, implemented e.g. cranes, direct using feedback theory linear systems not possible. Once model linearized, it becomes uncontrollable. Thus, derivation nonlinear controller needed to solve task. In this contex...

The Randolph Co. model 610 peristaltic, (1/8)-hp pump was effective for preparative purposes in disrupting baker's yeast and spores of Bacillus globigii when suspended with glass beads. Best results were obtained with use of a slurry just fluid enough to flow through tubing while stirred. Beads of 0.2 and 0.1 mm were used to best advantage for the yeast cells and spores, respectively. Yeast cel...

The Rouse formula and its variants have been widely used to describe the vertical distribution of sediment concentration in sediment-laden flows equilibrium. Han’s extends non-equilibrium regimes, where diffusive flux is still assumed be Fickian. turbulent flow suspension regimes downstream a mega-reservoir, e.g., Three Gorges Reservoir, usually exhibit fractal unsaturated properties, respectiv...

The optimum conditions for cardiothoracic surgery have traditionally been regarded as a “still and bloodless” surgical field. Cardiopulmonary bypass (CPB) provides this by incorporating a pump to substitute for the function of the heart and a gas exchange device, the “oxygenator,” to act as an artificial lung. CPB thus allows the patient’s heart and lungs to be temporarily devoid of circulation...