The study of an electric spark for igniting a fuel mixture

Communication orale (B.Hnatiuc)International audienc

Electrical and Physical Properties of a Gliding Arc

[Communication orale (B.Hnatiuc)]International audienc

Bacteria Inactivation Using Low Power Pulsed Gliding Arc Discharges With Water Spray

(Figure Presented) Low temperature atmospheric pressure plasma (produced by a 250mW pulsed gliding arc discharge) with water spray was utilized to inactivate bacteria colonies of Escherichia coli grown on the surface of an agar substrate. The pH, solution conductivity, H2O2, and nitrate concentrations were determined for air and argon carrier gases and different water flow rates. Control experiments conducted by spraying solutions of H2O2 in the absence of the discharge demonstrated that this chemical and its delivery by spraying account for approximately two to three orders of magnitude (depending upon bacterial loading) of the bacterial colony decontamination process for both carrier gases when bacteria are allowed to grow on the agar plate to form a biofilm. Reactive species or other factors arising from the gas flow from the plasma with the water spray caused bacteria inactivation of one to two orders of magnitude beyond those of spraying H 2O2 alone. © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Evaluating the effects of policy innovations: Lessons from a systematic review of policies promoting low-carbon technology

We report on an original systematic review of 165 empirical, ex post studies examining policies that promote the development and use of low-carbon technologies. Policy is defined broadly to include diverse instruments (e.g., eco-labels, voluntary agreements, emission credits, and taxes), developed, administered, and promoted by state and non-state actors (e.g., cities, states, corporations, business associations, and non-governmental organizations) that are relevant to climate change. By disaggregating policy designs, we are better able to understand the features of policies (e.g., instrument type, regulatory target, built-in flexibility) associated with effectiveness and the trade offs different features create among evaluation criteria. Our analysis, thus, sheds new light on the final and arguably most important criterion of policy innovations - the extent to which they have lasting consequences