Published in Russian Journal of Physical Chemistry A
AbstractThe purpose of this study is to investigate the stability of Cu-doped manganese oxide catalyst in the oxidation of m-xylene. The catalyst was prepared by hydrothermal method and characterized by TGA, XRD and TEM methods. The TGA results indicated high thermal stability of the prepared material. The XRD, TEM and catalytic results proved that...
Data from global positioning system (GPS) ground-based receivers, ground-based microwave radiometers (MWRs), and radiosondes (RS) at two high-latitude sites were compared. At one site, the North Slope of Alaska (NSA), Barrow, Alaska (USA), the instruments were co-located, while at the other site, the second ARM Mobile Facility (AMF2), Hyytiä / ...
Zaključna naloga je namenjena vzpostavitvi eksperimentalnega sistema za določevanje karakteristik uparjanja vode ter drugih značilnosti uparjanja. V tem delu so opisane teoretične osnove uparjanja vode, delovanje in značilnosti uparjalnika ter postopek izdelave merilne proge. Uparjalnik smo pripravili in ga vključili v merilni sistem ter zasnovali ...
Published in Atmospheric and Oceanic Optics
AbstractThe broadening and shift coefficients of H2O absorption lines are compared for Ar, He, H2, and N2 buffer gases. The broadening and shift coefficients were derived from the analysis of the absorption spectra recorded with an FTIR spectrometer in the spectral region 8650–9020 cm−1 with a spectral resolution of 0.01 cm–1. Using two model line ...
High daily temperatures in the Mediterranean and Europe have been documented in observation and modeling studies. Long-term temperature data, from 1988 to 2017, from a suburban station and an urban station in Nicosia, Cyprus have been analyzed, and the diurnal temperature range (DTR) trend was investigated. The seasonal Mann&ndash / Kendall test re...
Published in Atmospheric and Oceanic Optics
AbstractThe retrieved continuum absorption spectra in pure water vapor within near-IR bands 0.94 and 1.13 µm (10 600 and 8800 cm–1) are studied. The continuum is defined as a difference between the water vapor absorption spectra measured using a Fourier transform spectrometer and model absorption spectra of water monomers calculated using the HITRA...
Published in Thermophysics and Aeromechanics
The paper presents investigation results on propane combustion in argon, carbon dioxide, and water vapor under the conditions of O2 deficiency and high reagent density when they are uniformly heated up to 620 K. Based on time dependences of reaction mixture temperature, the self-ignition temperature of propane was determined. It has been establishe...
The mechanical properties of low-pressure plasma sprayed (LPPS) MCrAlY (M = Ni, Co) bond coats, Amdry 386, Amdry 9954 and oxide dispersion strengthened (ODS) Amdry 9954 (named Amdry 9954 + ODS) were investigated after annealing in three atmospheres: Ar&ndash / O2, Ar&ndash / H2O, and Ar&ndash / H2&ndash / H2O. Freestanding bond coats were investiga...
Thermal decomposition of Ca(OH)2 under atmospheric water vapor exhibits special features, including an induction period (IP) and a subsequent sigmoidal mass-loss behavior under isothermal conditions. Atmospheric water vapor reduces the reaction rate at a specific temperature and causes a systematic shift of the mass-loss curve, which was recorded a...
The calcium sulfate–water vapor system is of great scientific and technological importance due to its applications in several fields such as the construction materials industry, geology, and planetary sciences. While much effort has been concentrated during the past decades on characterizing the crystallographic structure of the different calcium s...
