In this study, the effect of the levels of hydrogen addition to methane-air premixed flame in a micro-stepped reactor has been studied numerically. In addition, the effects of mixture velocity and walls’ thermal conductivity (Kw) on the flame’s location, temperature, and species distribution in a micro reactor were calculated using a 2D numerical laminar steady code. The results ...

Abstract Cover crops are increasingly being included in crop rotations as a mechanism to promote diversity and provide agroecosystem services, including weed suppression. Recently, cover mixtures have increased popularity an attempt greater ecological services compared with monocultures. Several recent studies, however, failed detect positive effect of on biomass production or Here we assessed ...

Abstract We propose an extension of the N-mixture model that enables estimation abundances multiple species as well correlations between them. Our novel multi-species (MNM) is first to address both positive and negative inter-species correlations, which allows us assess influence abundance one on another. provide extensions permit analysis data with excess zero counts, relax assumption populati...

Comparatively little attention has been given to multicomponent diffusion effects in lean hydrogen-air flames, in spite of the importance of these flames in safety and their potential importance to future energy technologies. Prior direct numerical simulations either have considered only the mixture-averaged transport model, or have been limited to stabilized flames that do not exhibit the ther...

Abstract: We consider the system of equations governing a steady flow of polyatomic isothermal reactive gas mixture. The model covers situation when the pressure depends on species concentration and when the diffusion coefficients for each of the species are density-dependent. It is shown that this problem admits weak solution provided the adiabatic exponent for the mixture γ is grater then 7 3 .

x-ray photoelectron and electron energy loss spectroscopic (xps-eels) studies reveal that the following species are present when a mixture of co2 and water vapour is exposed to the clean mg(100) surface at 110k: co3(a), c(a) ch(a), oh(a). the reactive chemisorptions of co2 and h2o vapour coadsorbed on a mg surface leads to the formation of ch bond. increasing the temperature to 400 k shows the ...