Effect of the high voltage waveform on the ionic wind produced by a needle-to-plate dielectric barrier discharge.

Although corona discharges are used in many industrial applications because of their ability to produce chemical species, the ionic wind they induce is less known and often ignored. Therefore, the present study aims at investigating the ionic wind produced by a corona discharge ignited between a high voltage needle and a grounded plate electrode covered by a dielectric material. More specifically, the work focuses on the influence of the high voltage waveform on the temporal behavior of the ionic wind.

A Fast Segmentation Method for Fire Forest Images Based on Multiscale Transform and PCA.

Forests provide various important things to human life. Fire is one of the main disasters in the world. Nowadays, the forest fire incidences endanger the ecosystem and destroy the native flora and fauna.

New insights on mercury abatement and modeling in a full-scale municipal solid waste incineration flue gas treatment unit.

Modeling approaches are generally used to describe mercury transformations in a single step of flue gas treatment processes. However, less attention has been given to the interactions between the different process stages. Accordingly, the mercury removal performance of a full-scale solid waste incineration plant, equipped with a dry flue gas treatment line was investigated using two complementary modeling strategies: a thermochemical equilibrium approach to study the mercury transformation mechanisms and speciation in the flue gas, and a kinetic approach to describe the mercury adsorption process.

Characterization of Photorhabdus luminescens Growth for the Rearing of the Beneficial Nematode Heterorhabditis bacteriophora.

Culturing the bioluminescent bacterium Photorhabdus luminescens in nutrient broth (NB) is used to recover phase I cells. These phase I cells were highly luminescent for up to 7 h in this media and the luminosity could also be seen with the naked eye after a 15 min eye adjustment period in a dark room. Red pigmentation is a known trait of phase I cells and was visually distinct within the culture media.

The pot1+ homologue in Aspergillus nidulans is required for ordering mitotic events.

Orderly progression through mitosis is essential to reduce segregation errors in the cell's genetic material. We have used a cytological screen to identify a mutant that progresses through mitosis aberrantly and have cloned the complementing gene, nimU, which encodes a protein related to Pot1 and other telomere end-binding proteins. We show that loss of nimU function leads to premature mitotic spindle elongation, premature mitotic exit, errors in chromosome segregation, and failure to delay mitotic exit under conditions that normally evoke the mitotic spindle checkpoint response.