Results 81 to 90 of about 6,748 (227)

Accumulation of lead and zinc in chosen medicinal plants from Katowice recreation area

open access: yesEnvironmental Protection and Natural Resources, 2015
The aim of this research was to assess the concentration of lead and zinc in chosen medicinal plants obtained from recreational areas of Katowice as well as to compare the phytoaccumulation properties of these plants.
Laskowska Anna, Wiechuła Danuta
doaj   +1 more source

Control of residual amounts of copper-containing pesticides in plant products

open access: yesОвощи России, 2020
Relevance and methods. Methodological approaches to assessing the residual amounts of copper-containing pesticides in plant products against the background of natural copper content are presented.
N. E. Fedorova   +3 more
doaj   +1 more source

The determination of gold in vegetation and its application to specific problems in biogeochemistry : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Chemistry in the Dept. of Chemistry and Biochemistry at Massey University [PDF]

open access: yes, 1985
Studies were carried out to devise a method for determining nanogram quantities of gold in vegetation. The samples (0.5g) were digested with fuming nitric acid over a water bath.
Naidu, Shamila Devi
core  

Design and Development of a Lab-Scale Burner for MILD/Flameless Combustion

open access: yesChemical Engineering Transactions, 2015
This paper discusses the design and development of a burner for MILD/Flameless Combustion processes. Computational Fluid Dynamics was used to simulate preliminary designs for the burner and to obtain a characterization of the combustor for non-reactive ...
G. Sorrentino   +4 more
doaj   +1 more source

Impact of Integrating Flameless Combustion Technology and Sludge–Fly Ash Recirculation on PCDE Emissions in Hazardous Waste Thermal Treatment Systems

open access: yesAtmosphere
Polychlorinated diphenyl ethers (PCDEs), persistent environmental pollutants, are found in flue gas from incinerators. While air pollution control systems (APCSs) capture pollutants, the resulting sludge/fly ash (SFA) requires further treatment due to ...
Sheng-Lun Lin   +4 more
doaj   +1 more source

Platinum-group element mineralisation in the Unst ophiolite, Shetland [PDF]

open access: yes, 1984
The ophiolitic basic and ultrabasic rocks of the island of Unst, Shetland comprise a sequence of harzburgites, dunites, clinopyroxene-rich cumulates, and gabbro, within tectonic blocks that have been thrust over a migmatite complex during the Laxer ...
Gunn, A.G., Leake, R.C., Styles, M.T.
core  

Flow field and emission characterization of a novel enclosed jet-in-hot-coflow canonical burner

open access: yesApplications in Energy and Combustion Science
The jet-in-hot-coflow is a canonical combustion setup, which has been used in several studies to study Flameless/MILD combustion and auto-ignition of fuels.
Thimo van den Berg   +2 more
doaj   +1 more source

Stagnation point reverse flow combustor [PDF]

open access: yes, 2008
A method for combusting a combustible fuel includes providing a vessel having an opening near a proximate end and a closed distal end defining a combustion chamber. A combustible reactants mixture is presented into the combustion chamber. The combustible
Jagoda, Jechiel   +4 more
core   +1 more source

Preparation, characterization and evaluation of MgO for flameless combustion of natural gas

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2006
A MgO catalyst was prepared by aqueous dispersion of commercial magnesium oxide followed by drying and calcination to obtain a thermally-stabilized material.
Elías Gómez Macías   +3 more
doaj   +1 more source

Quantitation and detection of vanadium in biologic and pollution materials [PDF]

open access: yes
A review is presented of special considerations and methodology for determining vanadium in biological and air pollution materials. In addition to descriptions of specific analysis procedures, general sections are included on quantitation of analysis ...
Gordon, W. A.
core   +1 more source

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