نتایج جستجو برای: fixed film biological processes

تعداد نتایج: 1207571  

Journal: :Journal of General Physiology 1920

Journal: :TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B 1997

Journal: :Water research 2010
Hyun-Su Kim James W Gellner Joshua P Boltz Robert G Freudenberg Claudia K Gunsch Andrew J Schuler

Integrated fixed film activated sludge (IFAS) is an increasingly popular modification of conventional activated sludge, consisting of the addition of solid media to bioreactors to create hybrid attached/suspended growth systems. While the benefits of this technology for improvement of nitrification and other functions are well-demonstrated, little is known about its effects on biomass settleabi...

2012
Markus A. Schmidt Dang Yuan Lei Lothar Wondraczek Virginie Nazabal Stefan A. Maier

Optical nanosensors based on plasmonic nanoparticles have great potential for chemical and biological sensing applications, but their spectral detection resolution is severely constrained by their broad resonance linewidth, and their spatial sensing depth is limited to several tens of nanometres. Here we demonstrate that coupling a strong dipolar plasmonic resonance of a single metallic nanopar...

1997
Raj K. Gupta Stephen D. Senturia

The squeezed-film damping component of the pull-in time of an electrostatically-actuated micromechanical fixed-fixed beam is shown to be a sensitive, and nearly linear function of ambient air pressure in the measured range of 0.1 mbar to 1013 mbar (1 atm or 760 Torr). Pull-in time simulations, based on a one-dimensional macromodel using a damping constant proportional to pressure, are in good a...

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