This investigation has been undertaken to better understand pollutant formation in Waste-to-Energy (WTE) systems by using Computation Fluid Dynamics (CFD). An above-grate gas phase only model was built and calculated in FLUENTTM with the intent of specifically studying the factors that influence the formation of NOx. Results are shown for a typical reciprocating-grate WTE boiler operating on mu...

We used a free tarsal-conjunctival grate from the upper eyelid and a nasal-based pedicle skin-muscle flap for reconstruction of the medial aspect of the lower eyelid. This had the advantage of confining the reconstruction to the local area and eliminated the need for a temporal flap or an eyelid sharing procedure that necessitates occluding the fissure for several weeks.

Enabled by a technology to fabricate well-defined nanogrates over a large area 2 2 cm2 , we report the effect of such a surface, in both hydrophilic and hydrophobic conditions, on liquid slip and the corresponding friction reduction in microchannels. The grates are designed to be dense 230 nm pitch but deep 500 nm in order to sustain a large amount of air in the troughs when the grates are hydr...

Catalytic carbon dioxide (CO2) transformation to produce value added products is of grate common attention, especially in detecting innovative methods for CO2fixation reactions. In this paper, we report the porous...

☆ We would like to thank Weili Ding, Esther Duflo, Gigi Kremer, Victor Lavy, Steven Lehrer, Patrick McEwan, A Hongliang Zhang, two anonymous reviewers and the se Stanford, Peking University, NEUDC, Oxford and Chinese U helpful comments on the drafts of this paper. Financial sup the University of Macau (Grant SRG009-FSH13-LT) is grate ⁎ Corresponding author. E-mail address: [email protected]...

OBJECTIVE Tuberculosis transmission in healthcare facilities contributes significantly to the TB epidemic, particularly in high HIV settings. Although improving ventilation may reduce transmission, there is a lack of evidence to support low-cost practical interventions. We assessed the efficacy of wind-driven roof turbines to achieve recommended ventilation rates, compared to current recommende...

The incineration of municipal waste under existing legislative and operational boundary conditions is a very complex process. An optimisation in the emissions is possible by a splitting up of the combustion air into primary and secondary air. The mixing of the secondary air into the furnace is the most important feature in order to reach uniform oxygen, temperature and velocity distributions. T...