نتایج جستجو برای: c2h6
تعداد نتایج: 375 فیلتر نتایج به سال:
Moving beyond the six-atomic benchmark systems, we discuss new age and future of first-principles reaction dynamics, which investigates complex, multichannel chemical reactions. We describe methodology starting from ab initio characterization stationary points, followed by full-dimensional potential energy surface (PES) developments dynamics computations. highlight our composite approach provid...
Abstract. Measurements of the pollution trace gases ethane (C2H6), ethyne (C2H2), formic acid (HCOOH), and peroxyacetyl nitrate (PAN) were performed in North Atlantic upper troposphere lowermost stratosphere (UTLS) region with airborne limb imager GLORIA (Gimballed Limb Observer for Radiance Imaging Atmosphere) high spatial resolution down to cloud top. Observations made during flights German r...
In this research, Cu0.5Zn0.5Fe2O4 nanoparticles were prepared by citrateprecursormethod and under air-ambient annealing at 200, 400, 600°C. The structural features of samples were investigated by X-ray powder diffraction and FT-IR spectroscopy. The structural characterization of compounds, using X’Pert package and Fullprof program, is evidence for formation of a cubic structure (Fd-3m space gro...
Anomalies of tropospheric columns ozone (O3), carbon monoxide (CO), acetylene (C2H2), formaldehyde (H2CO), and ethane (C2H6) are quantified during the 2020 stringent COVID-19 world-wide lockdown using multiple ground-based Fourier-transform infrared spectrometers covering urban remote conditions. We applied an exponential smoothing forecasting approach to data sets estimate business-as-usual va...
The surface of Pluto as it is understood on the eve of the encounter of the New Horizons spacecraft (mid-2015) consists of a spatially heterogeneous mix of solid N2, CH4, CO, C2H6, and an additional component that imparts color, and may not be an ice. The known molecular ices are detected by near-infrared spectroscopy. The N2 ice occurs in the hexagonal crystalline b-phase, stable at T > 35.6 K...
در این بررسی پروسکایت های lacoo3 به روش سیترات و نوع پایه دار آن با تلقیح محلول نیترات های کبالت و لانتانیم روی پایه های سیلیکا و آلومینا تهیه شد. همچنین از پایدارکننده های سریا،زیرکونیا و لانتانا برای کاهش اثرات متقابل پروسکایت و پایه استفاده گردید. عملکرد این کاتالیست ها درc°750-100 ودر حضور گازی شبیه گاز خروجی از اگزوز خودروهای بنزینی بررسی شد. کاتالیست بدون پایه lacoo3 ، co را در دماهای کمت...
The present contribution experimentally examined the combined effect of non-thermal plasma and Mn-based composite catalysts on CO2 reforming toluene as a model compound tars in synthesis gas production from biomass gasification pyrolysis. experimentation was performed using fixed-bed reactor packed with catalyst incorporating dielectric barrier discharge (DBD) to generate in-situ. effects speci...
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