Results 11 to 20 of about 539,119 (298)

Flame Chemistry in the ISO/TS 19700 Steady State Tube Furnace

open access: yes, 2023
The steady state tube furnace (SSTF) (ISO/TS 19700) was used to assess the effects altering the reaction zone of a flame had on smoke toxicity measurements. The gas inlet of the apparatus was modified to allow for a mixture of nitrogen and air to be introduced into the system.
Gabrielle Peck, Ryan Hayes
openaire   +1 more source

Effect of Ionospheric Variability on the Electron Energy Spectrum estimated from Incoherent Scatter Radar Measurements [PDF]

open access: yesAnnales Geophysicae
The ion composition in the E-region is modified by auroral precipitation. This affects the inversion of electron density profiles from field-aligned incoherent scatter radar measurements to differential energy spectra of precipitating electrons.
O. Stalder, B. Gustavsson, I. Virtanen
doaj   +1 more source

Nighttime chemistry at a high altitude site above Hong Kong [PDF]

open access: yes, 2016
Nighttime reactions of nitrogen oxides influence ozone, volatile organic compounds, and aerosol and are thus important to the understanding of regional air quality.
Blake, Donald R   +10 more
core   +1 more source

The Framework for 0-D Atmospheric Modeling (F0AM) v3.1 [PDF]

open access: yesGeoscientific Model Development, 2016
The Framework for 0-D Atmospheric Modeling (F0AM) is a flexible and user-friendly MATLAB-based platform for simulation of atmospheric chemistry systems. The F0AM interface incorporates front-end configuration of observational constraints and model setups,
G. M. Wolfe   +4 more
doaj   +1 more source

The mathematical stability study for the system of the CoO(OH) – overoxidized polypyrrole composite synthesis in the presence of fluor ions

open access: yesMongolian Journal of Chemistry, 2016
The potentiostatic synthesis of CoO(OH) – Overoxidized polypyrrole composite in the presence of fluor ions has been investigated mathematically. The corresponding mathematical model was described and analyzed by means of linear stability theory and ...
V. Tkach   +4 more
doaj   +1 more source

Dust temperature and time-dependent effects in the chemistry of photodissociation regions [PDF]

open access: yes, 2019
When studying the chemistry of PDRs, time dependence becomes important as visual extinction increases, since certain chemical timescales are comparable to the cloud lifetime.
Caselli, Paola   +4 more
core   +2 more sources

Sequestration of Drugs from Biomolecular and Biomimicking Environments: Spectroscopic and Calorimetric Studies

open access: yesColloids and Interfaces, 2023
The binding of drugs to nucleic acids, proteins, lipids, amino acids, and other biological receptors is necessary for the transportation of drugs. However, various side effects may also originate if the bound drug molecules are not dissociated from the ...
Rahul Yadav   +2 more
doaj   +1 more source

Numerical analysis of reactive turbulent flow in the thrust chamber of RD-108 engine rocket

open access: yesDefence Technology, 2019
Combustion chamber modeling and simulation of the liquid propellant engine with kerosene as fuel and liquid oxygen as an oxidizer in the turbulent flow field are performed by CFD technique.
Seyed Reza Taghavi   +2 more
doaj   +1 more source

Chemical Derivatization in Flow Analysis

open access: yesMolecules, 2022
Chemical derivatization for improving selectivity and/or sensitivity is a common practice in analytical chemistry. It is particularly attractive in flow analysis in view of its highly reproducible reagent addition(s) and controlled timing.
Fábio R. P. Rocha, Elias A. G. Zagatto
doaj   +1 more source

A fast stratospheric chemistry solver: the E4CHEM submodel for the atmospheric chemistry global circulation model EMAC [PDF]

open access: yesGeoscientific Model Development, 2010
The atmospheric chemistry general circulation model ECHAM5/MESSy (EMAC) and the atmospheric chemistry box model CAABA are extended by a computationally very efficient submodel for atmospheric chemistry, E4CHEM.
A. J. G. Baumgaertner   +4 more
doaj   +1 more source

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