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Author |
De Vis, K.; Jembrih-Simbürger, D.; Schalm, O.; Schreiner, M.; Caen, J. |
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Title |
Einfluss verschiedener Silbersalze auf die Farbintensität von Silbergelb : analytische Untersuchungen |
Type |
A2 Journal article |
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Year |
2002 |
Publication |
Zeitschrift für Kunsttechnologie und Konservierung |
Abbreviated Journal |
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Volume |
16 |
Issue |
1 |
Pages |
147-157 |
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Keywords |
A2 Journal article; Art; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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ISSN |
0931-7198 |
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UA library record |
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Call Number |
UA @ admin @ c:irua:107748 |
Serial |
7855 |
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Author |
Fenu, A.; De Wilde, W.; Gaertner, M.; Weemaes, M.; de Gueldre, G.; van de Steene, B. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Elaborating the membrane life concept in a full scale hollow-fibers MBR |
Type |
A1 Journal article |
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Year |
2012 |
Publication |
Journal of membrane science |
Abbreviated Journal |
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Volume |
421 |
Issue |
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Pages |
349-354 |
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Keywords |
A1 Journal article; Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
The membrane life-time has a strong impact on competitivity and viability of MBRs. This study critically analyzes the membrane life-time concept, approaching it through different assessment methods. A full scale MBR's membrane life-time was assessed on the following: (i) maintaining the permeate flow throughput to the MBR; (ii) the permeability decline; (iii) oxidative aging; (iv) the increase in energy costs; and (v) mechanical aging. The method based on permeability decline provides a membrane life-time estimate up to a theoretical end. It was further elaborated inherently to operations with no long-term flux decline. The increase in operating pressure remains the main end-of-life trigger for deciding when to replace membrane modules. On the contrary, mechanical and permeate flow throughput analysis of the data are not able to provide a clear estimate of the membrane life-time. As for the membrane life-time estimation based on chlorine contact, it was found to be too optimistic. Complete irreversible fouling occurs before maximum contact time with chlorine is reached. At end-of-life operating conditions, the energy consumption raised of 170% due to the reduced flow rate. The cost raise appears high but still affordable. Earlier membrane replacement thus can never be counterbalanced by energy costs saving. (C) 2012 Elsevier B.V. All rights reserved. |
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000308741100039 |
Publication Date |
2012-08-07 |
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ISSN |
0376-7388 |
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UA library record; WoS full record; WoS citing articles |
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Call Number |
UA @ admin @ c:irua:101790 |
Serial |
7856 |
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Author |
Abreu, Y.; Cruz, C.M.; van Espen, P.; Pérez, C.; Piñera, I.; Leyva, A.; Cabal, A.E. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Electric field gradient calculations in ZnO samples implanted with 111In(111Cd) |
Type |
A1 Journal article |
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Year |
2012 |
Publication |
Solid state communications |
Abbreviated Journal |
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Volume |
152 |
Issue |
5 |
Pages |
399-402 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
A first-principles study of the electric field gradient (EFG) calculated for ideal and In-111(Cd-111) implanted ZnO samples is reported in the present work. The study was made for ZnO ideal hexagonal structures and supercells were introduced in order to consider the possible implantation environments. The calculation was done using the “WIEN2k” code within the density functional theory, the exchange and correlation effects were determined by the GGA approximation. Three possible In-111(Cd-111) implantation configurations were studied, one substitutional incorporation at cation site and two interstitials. The obtained EFG values for the ideal structure and the substitutional site are in good agreement with the experimental reports measured by perturbed angular correlation (PAC) and high precision nuclear magnetic resonance (NMR). Thus, the ascription of substitutional incorporation of In-111(Cd-111) probe atom at the ZnO cation site after annealing was confirmed. (C) 2011 Elsevier Ltd. All rights reserved. |
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Wos |
000301329200016 |
Publication Date |
2011-12-09 |
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ISSN |
0038-1098 |
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UA library record; WoS full record; WoS citing articles |
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Call Number |
UA @ admin @ c:irua:97821 |
Serial |
7857 |
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Author |
Lou, W.-K. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
The electrical properties of low low dimensional topological insulators |
Type |
Doctoral thesis |
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Year |
2012 |
Publication |
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Abbreviated Journal |
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Pages |
186 p. |
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Keywords |
Doctoral thesis; Condensed Matter Theory (CMT) |
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Call Number |
UA @ admin @ c:irua:158894 |
Serial |
7858 |
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Author |
Bia, P.; Caratelli, D.; Mescia, L.; Gielis, J. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Electromagnetic characterization of supershaped lens antennas for high-frequency applications |
Type |
H1 Book chapter |
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Year |
2013 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
1679-1682
T2 - Proceedings of the 43rd European Mi |
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Keywords |
H1 Book chapter; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) |
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Wos |
000330768700424 |
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978-2-87487-031-6 |
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UA library record; WoS full record; WoS citing articles |
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Call Number |
UA @ admin @ c:irua:110954 |
Serial |
7865 |
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Author |
Mescia, L.; Bia, P.; Caratelli, D.; Chiapperino, M.A.; Stukach, O.; Gielis, J. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Electromagnetic mathematical modeling of 3D supershaped dielectric lens antennas |
Type |
A1 Journal article |
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Year |
2016 |
Publication |
Mathematical problems in engineering: theory, methods, and applications |
Abbreviated Journal |
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Volume |
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Issue |
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Pages |
8130160-10 |
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Keywords |
A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
The electromagnetic analysis of a special class of 3D dielectric lens antennas is described in detail. This new class of lens antennas has a geometrical shape defined by the three-dimensional extension of Gielis formula. The analytical description of the lens shape allows the development of a dedicated semianalytical hybrid modeling approach based on geometrical tube tracing and physical optic. In order to increase the accuracy of the model, the multiple reflections occurring within the lens are also taken into account. |
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Wos |
000372246600001 |
Publication Date |
2016-02-29 |
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Abbreviated Series Title |
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Edition |
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ISSN |
1024-123x; 1563-5147 |
ISBN |
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UA library record; WoS full record; WoS citing articles |
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Call Number |
UA @ admin @ c:irua:131516 |
Serial |
7866 |
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Author |
Martínez-Dueñas, E.J.R.; de Jong van Coevorden, C.M.; Stukach, O.V.; Panokin, N.V.; Gielis, J.; Caratelli, D. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Electromagnetic modeling and design of a novel class of complementary split‐ring resonators |
Type |
A1 Journal article |
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Year |
2019 |
Publication |
International journal of RF and microwave computer-aided engineering |
Abbreviated Journal |
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Volume |
29 |
Issue |
4 |
Pages |
e21582 |
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Keywords |
A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
This research study reports the assessment of complementary split ring resonators based on Gielis transformation as basic elements for the design of high‐performance microwave components in printed technology. From the electromagnetic simulation of said structures, suitable equivalent circuit models are extracted and analyzed. Physical prototypes are fabricated and tested for design validation. The obtained results confirm that the adoption of supershaped geometries enables the synthesis of very compact scalable microwave filters. |
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Wos |
000460308500020 |
Publication Date |
2018-11-19 |
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Edition |
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ISSN |
1096-4290 |
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UA library record; WoS full record |
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Approved ![sorted by Approved field, ascending order (up)](img/sort_asc.gif) |
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Call Number |
UA @ admin @ c:irua:155021 |
Serial |
7867 |
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Author |
Xhoffer, C.; Jacob, W.; Van Grieken, R.; Broekaert, J.A.C.; Buseck, P. |
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Title |
Electron energy-loss spectroscopy and its application to individual particle analysis |
Type |
P3 Proceeding |
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Year |
1992 |
Publication |
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Abbreviated Journal |
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Pages |
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Keywords |
P3 Proceeding; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Approved ![sorted by Approved field, ascending order (up)](img/sort_asc.gif) |
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Call Number |
UA @ admin @ c:irua:2862 |
Serial |
7868 |
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Author |
Bernard, P.; Eisma, D.; Van Grieken, R. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Electron microprobe analysis of suspended matter in the Angola Basin |
Type |
A1 Journal article |
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Year |
1999 |
Publication |
Journal of sea research |
Abbreviated Journal |
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Volume |
41 |
Issue |
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Pages |
19-33 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Wos |
000079367500003 |
Publication Date |
2002-07-25 |
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Edition |
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ISSN |
1385-1101 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Approved ![sorted by Approved field, ascending order (up)](img/sort_asc.gif) |
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Call Number |
UA @ admin @ c:irua:23181 |
Serial |
7869 |
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Permanent link to this record |
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Author |
Rojas, C.M.; Van Grieken, R.E. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Electron microprobe characterization of individual aerosol particles collected by aircraft above the Southern Bight of the North Sea |
Type |
A1 Journal article |
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Year |
1992 |
Publication |
Atmospheric environment : an international journal |
Abbreviated Journal |
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Volume |
26a |
Issue |
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Pages |
1231-1237 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Wos |
A1992HM11500002 |
Publication Date |
2003-08-06 |
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Edition |
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ISSN |
1352-2310 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Approved ![sorted by Approved field, ascending order (up)](img/sort_asc.gif) |
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Call Number |
UA @ admin @ c:irua:2826 |
Serial |
7870 |
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Author |
Storms, H.; Van Dyck, P.; Van Grieken, R.; Maenhaut, W. |
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Title |
Electron microprobe observations of recrystallization affecting PIXE-analysis of marine aerosol deposits |
Type |
A1 Journal article |
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Year |
1985 |
Publication |
Journal of trace and microprobe techniques |
Abbreviated Journal |
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Volume |
2 |
Issue |
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Pages |
103-117 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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ISSN |
0733-4680; 1532-2270 |
ISBN |
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UA library record |
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Approved ![sorted by Approved field, ascending order (up)](img/sort_asc.gif) |
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Call Number |
UA @ admin @ c:irua:116718 |
Serial |
7871 |
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Author |
Leysen, L.A.; De Waele, J.K.; Roekens, E.J.; Van Grieken, R.E. |
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Title |
Electron probe micro-analysis and laser microprobe mass analysis of material, leached from a limestone cathedral |
Type |
A1 Journal article |
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Year |
1987 |
Publication |
Scanning microscopy |
Abbreviated Journal |
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Volume |
1 |
Issue |
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Pages |
1617-1630 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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ISSN |
0891-7035 |
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UA library record |
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Approved ![sorted by Approved field, ascending order (up)](img/sort_asc.gif) |
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Call Number |
UA @ admin @ c:irua:116794 |
Serial |
7872 |
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Author |
Hoornaert, S.; Treiger, B.; Valkovic, V.; Van Grieken, R. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Electron probe X-ray microanalysis for the assessment of homogeneity of candidate reference materials at the nanogram level |
Type |
A1 Journal article |
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Year |
1998 |
Publication |
Microchimica acta |
Abbreviated Journal |
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Volume |
128 |
Issue |
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Pages |
207-213 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Wos |
000071438000010 |
Publication Date |
2005-02-26 |
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ISSN |
0026-3672; 1436-5073 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Approved ![sorted by Approved field, ascending order (up)](img/sort_asc.gif) |
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Call Number |
UA @ admin @ c:irua:20960 |
Serial |
7873 |
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Author |
Hoornaert, S.; Treiger, B.; Van Grieken, R.; Valkovic, V. |
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Title |
Electron probe X-ray microanalysis for the assessment of homogeneity of candidate reference materials at the nanogram level |
Type |
H3 Book chapter |
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Year |
1996 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
29-49b
T2 - Reference materials for microanalytica |
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Keywords |
H3 Book chapter; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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UA library record |
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no |
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Call Number |
UA @ admin @ c:irua:14681 |
Serial |
7874 |
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Permanent link to this record |
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Author |
Siriwardane, E.M.D.; Karki, P.; Sevik, C.; Cakir, D. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Electronic and mechanical properties of stiff rhenium carbide monolayers: A first-principles investigation |
Type |
A1 Journal article |
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Year |
2018 |
Publication |
Applied surface science |
Abbreviated Journal |
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Volume |
458 |
Issue |
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Pages |
762-768 |
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Keywords |
A1 Journal article; Condensed Matter Theory (CMT) |
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Abstract |
In this study, we predicted two new stable metallic Re-C based monolayer structures with a rectangular (r-ReC2) and a hexagonal (h-Re2C) crystal symmetry using first-principle calculations based on density functional theory. Our results obtained from mechanical and phonon calculations and high-temperature molecular dynamic simulations clearly proved the stability of these two-dimensional (2D) crystals. Interestingly, Re-C monolayers in common transition metal carbide structures (i.e. MXenes) were found to be unstable, contrary to expectations. We found that the stable structures, i.e. r-ReC2 and h-Re2C, display superior mechanical properties over the well-known 2D materials. The Young's modulus for r-ReC2 and h-Re2C are extremely high and were calculated as 351 (1310) and 617 (804) N/m (GPa), respectively. Both materials have larger Young's modulus values than the most of the well-known 2D materials. We showed that the combination of the short strong directional p-d bonds, the high coordination number of atoms in the unit-cell and high valence electron density result in strong mechanical properties. Due to its crystal structure, the r-ReC2 monolayer has anisotropic mechanical properties and the crystallographic direction parallel to the C-2 dimers is stiffer compared to perpendicular direction due to strong covalent bonding within C-2 dimers. h-Re2C was derived from the corresponding bulk structure for which we determined the critical thickness for the dynamically stable bulk-derived monolayer structures. In addition, we also investigated the electronic of these two stable structures. Both exhibit metallic behavior and Re-5d orbitals dominate the states around the Fermi level. Due to their ultra high mechanical stability and stiffness, these novel Re-C monolayers can be exploited in various engineering applications. |
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Wos |
000441400000088 |
Publication Date |
2018-07-11 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0169-4332 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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no |
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Call Number |
UA @ admin @ c:irua:193776 |
Serial |
7875 |
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Permanent link to this record |
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Author |
Khazaei, M.; Wang, V.; Sevik, C.; Ranjbar, A.; Arai, M.; Yunoki, S. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Electronic structures of iMAX phases and their two-dimensional derivatives: A family of piezoelectric materials |
Type |
A1 Journal article |
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Year |
2018 |
Publication |
Physical review materials |
Abbreviated Journal |
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Volume |
2 |
Issue |
7 |
Pages |
074002 |
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Keywords |
A1 Journal article; Condensed Matter Theory (CMT) |
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Abstract |
Recently, a group of MAX phases, (Mo2/3Y1/3)(2)AlC, (Mo2/3Sc1/3)(2)AlC, (W2/3Sc1/3)(2)AlC,(W2/3Y1/3)(2)AlC, and (V-2/3 Zr-1/3)(2)AlC, with in-plane ordered double transition metals, named iMAX phases, have been synthesized. Experimentally, some of these MAX phases can be chemically exfoliated into two-dimensional (2D) single- or multilayered transition metal carbides, so-called MXenes. Accordingly, the 2D nanostructures derived from iMAX phases are named iMXenes. Here we investigate the structural stabilities and electronic structures of the experimentally discovered iMAX phases and their possible iMXene derivatives. We show that the iMAX phases and their pristine, F, or OH-terminated iMXenes are metallic. However, upon 0 termination, (Mo2/3Y1/3)(2)C, (Mo2/3Sc1/3)(2)C, (W2/3Y1/3)(2)C, and (W2/3Sc1/3)(2)C iMXenes turn into semiconductors. Owing to the absence of centrosymmetry, the semiconducting iMXenes may find applications in piezoelectricity. Our calculations reveal that the semiconducting iMXenes possess giant piezoelectric coefficients as large as 45 x 10(-)(10) C/m. |
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Wos |
000438354500001 |
Publication Date |
2018-07-12 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
2475-9953 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Open Access |
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Approved ![sorted by Approved field, ascending order (up)](img/sort_asc.gif) |
no |
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Call Number |
UA @ admin @ c:irua:193791 |
Serial |
7876 |
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Permanent link to this record |
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Author |
Rahemi, V. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Electrosensing applications by using titania as a support for bio(inspired) molecules |
Type |
Doctoral thesis |
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Year |
2018 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
133 p. |
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Keywords |
Doctoral thesis; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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UA library record |
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Approved ![sorted by Approved field, ascending order (up)](img/sort_asc.gif) |
no |
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Call Number |
UA @ admin @ c:irua:152884 |
Serial |
7877 |
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Permanent link to this record |
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Author |
Johansson, T.B.; Van Grieken, R.E.; Winchester, J.W. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Elemental abundance variation with particle-size in north florida aerosols |
Type |
A1 Journal article |
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Year |
1976 |
Publication |
Journal of geophysical research |
Abbreviated Journal |
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Volume |
81 |
Issue |
6 |
Pages |
1039-1046 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
A nonurban base line has been established for nine trace element constituents of aerosol particles as a function of particle size at ground level sampling stations in north Florida up to 50 km from the Gulf of Mexico. The particle size range 0.25- to >4-μm aerodynamic diameter was investigated by cascade impactor sampling and elemental analysis by proton-induced X ray emission. By using a strategy of sampling at urban, forest, and coastal locations and by choosing approximately 48-hour sample averaging intervals the potential dependence of the base line levels both on local pollution and natural sources and on local particle size specific aerosol removal processes could be evaluated. It is found that elements contained in the largest particles, especially those of >4 μm, display the greatest degree of average concentration difference between sites, a result suggesting short atmospheric residence times and the importance of local dispersion sources and atmospheric cleansing processes in regulating the particle concentrations in air. Elements contained in particles of <2-μm diameter show little average concentration difference between sites unless they are influenced by local pollution sources, a finding suggesting that their concentrations in air are regulated by large-scale sources and transport processes. Sulfur in the smallest particles shows a marked constancy of concentration, but it may be modified in the largest particle size ranges in relation to proximity to the seacoast. No evidence is found for dependence of particulate sulfur concentrations on local pollution sources. K, Ca, Ti, Fe, and Zn appear to be regulated in the main by terrestrial source processes, and Cl by marine source processes, but Br and Pb appear to be accounted for adequately by assuming automotive fuel combustion as their major source. Limited data obtained for V indicate that it may vary considerably with fluctuations in aerosol transport from oil-fired electric power plant sources in the region. Limited additional data also suggest that Mn is derived from sources of natural terrestrial composition. In view of these findings, certain criteria may be set for the design of a meaningful nonurban aerosol monitoring network. |
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Corporate Author |
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Wos |
A1976BG78300001 |
Publication Date |
2008-02-06 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0148-0227; 2156-2202; 0022-1406; 0196-6928; 0196-6936; 0885-3401; 8755-8556; 0196-2256; 0747-7309; 1 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
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Times cited |
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Open Access |
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Notes |
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Approved ![sorted by Approved field, ascending order (up)](img/sort_asc.gif) |
no |
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Call Number |
UA @ admin @ c:irua:113637 |
Serial |
7879 |
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Permanent link to this record |
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Author |
Johansson, T.B.; Nelson, J.W.; Van Grieken, R.E.; Winchester, J.W. |
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Title |
Elemental analysis of aerosol-size fractions by proton-induced X-ray-emission |
Type |
A1 Journal article |
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Year |
1973 |
Publication |
Transactions of the American Nuclear Society |
Abbreviated Journal |
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Volume |
17 |
Issue |
Nov |
Pages |
103-103 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
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Corporate Author |
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Wos |
A1973R161300114 |
Publication Date |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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ISSN |
0003-018x |
ISBN |
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Additional Links |
UA library record; WoS full record |
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Impact Factor |
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Times cited |
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Open Access |
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Notes |
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Approved ![sorted by Approved field, ascending order (up)](img/sort_asc.gif) |
no |
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Call Number |
UA @ admin @ c:irua:113643 |
Serial |
7880 |
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Permanent link to this record |
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Author |
Nelson, J.W.; Williams, I.; Johansson, T.B.; Van Grieken, R.E. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Elemental analysis of aerosols using proton-scattering |
Type |
A1 Journal article |
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Year |
1974 |
Publication |
IEEE transactions on nuclear science |
Abbreviated Journal |
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Volume |
Ns21 |
Issue |
1 |
Pages |
618-621 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
Elemental analysis for all of the light elements up through chlorine by elastic scattering of 16 MeV protons has been shown to be feasible. Basic problems associated with such measurements are discussed including kinematics, angular distribution, and sample backings. Spectra are presented for air particulate matter for both a total filter (Nuclepore) and a size fractionated air impactor (polystyrene backed) sample. The method is absolute, non destructive and can be used in conjunction with proton induced x-ray fluorescence to quantitatively analyze all elements in the same sample in minutes of time. |
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Place of Publication |
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Wos |
A1974S533700086 |
Publication Date |
2008-07-22 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0018-9499 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
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Times cited |
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Open Access |
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Notes |
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Approved ![sorted by Approved field, ascending order (up)](img/sort_asc.gif) |
no |
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Call Number |
UA @ admin @ c:irua:113642 |
Serial |
7881 |
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Permanent link to this record |
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Author |
Mmari, A.G.; Potgieter-Vermaak, S.S.; Bencs, L.; McCrindle, R.I.; Van Grieken, R. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Elemental and ionic components of atmospheric aerosols and associated gaseous pollutants in and near Dar es Salaam, Tanzania |
Type |
A1 Journal article |
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Year |
2013 |
Publication |
Atmospheric environment : an international journal |
Abbreviated Journal |
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Volume |
77 |
Issue |
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Pages |
51-61 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
Elemental and water-soluble ionic compounds (WSICs) of atmospheric aerosols (total suspended particulate TSP) and some gaseous pollutants (SO2, NO2 and O3) from a coastal, semi-urban and rural site in and near Dar es Salaam, Tanzania were investigated during dry and wet seasons of January 2005November 2007. Na+, Ca2+, SO42−, NO3− and Cl− made up the dominant fraction of WSICs during the dry season with average concentrations ranging from non-detectable (n.d.)5.4, 0.262.6, 0.7414.7, 0.41.5 and 1.13.4 μg m−3, respectively, while in the wet season, from n.d. up to 1.7, 1.2, 4.4, 2.1 and 3.0 μg m−3, respectively. The total air concentrations of the detected elements (Al, Si, S, Cl, K, Ca, Fe and Zn) showed seasonal and site-specific variation in the range of 7.526.6 with an average of 14.5 μg m−3. Most of the air concentrations of pollutants were observed to decrease with increasing distance from the coastal site, which is under urban and industrial pollutant emissions. Sulphur and nitrogen oxidation ratios during the dry season ranged from 0.08 to 0.91 and 0.013 to 0.049, respectively, while they were between 0.090.65 and 0.0020.095, respectively, in the wet season. These values indicate the photochemical oxidation of SO2 and a high extent of NO3−formation in the atmosphere. Neutralization ratios revealed the presence of acidic SO42− and NO3− aerosols. Principal component analysis identified sea spray, local combustion, vehicular traffic, biomass burning and re-suspended road dust as dominant sources of aerosols at the studied coastal and semi-urban sites. However, at the rural site, besides sea spray, crustal sources, soil dust re-suspension and long-range transport are the possible origins of suspended particulates. |
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Wos |
000324848500006 |
Publication Date |
2013-05-01 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
1352-2310 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
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Times cited |
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Open Access |
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Notes |
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Approved ![sorted by Approved field, ascending order (up)](img/sort_asc.gif) |
no |
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Call Number |
UA @ admin @ c:irua:108096 |
Serial |
7882 |
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Permanent link to this record |
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Author |
Deutsch, F.; Stranger, M.; Kaplinskii, A.E.; Samek, L.; Joos, P.; Van Grieken, R. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Elemental and ionic concentrations in the urban aerosol in Antwerp, Belgium |
Type |
A1 Journal article |
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Year |
2004 |
Publication |
Journal of environmental science and health: part A: toxic/hazardous substances & environmental engineering |
Abbreviated Journal |
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Volume |
39 |
Issue |
3 |
Pages |
539-558 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
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Wos |
000220119800001 |
Publication Date |
2004-02-19 |
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Edition |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
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Times cited |
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Open Access |
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Notes |
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Approved ![sorted by Approved field, ascending order (up)](img/sort_asc.gif) |
no |
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Call Number |
UA @ admin @ c:irua:44335 |
Serial |
7883 |
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Permanent link to this record |
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Author |
Hoornaert, S.; Godoi, R.H.M.; Van Grieken, R. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Elemental and single particle aerosol characterisation at a background station in Kazakhstan |
Type |
A1 Journal article |
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Year |
2004 |
Publication |
Journal of atmospheric chemistry |
Abbreviated Journal |
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Volume |
48 |
Issue |
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Pages |
301-315 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
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Wos |
000224389700006 |
Publication Date |
2004-10-12 |
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Abbreviated Series Title |
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Edition |
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ISSN |
0167-7764 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
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Times cited |
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Open Access |
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Notes |
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Approved ![sorted by Approved field, ascending order (up)](img/sort_asc.gif) |
no |
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Call Number |
UA @ admin @ c:irua:49509 |
Serial |
7884 |
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Permanent link to this record |
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Author |
Ramesh, R.; Subramanian, V.; Van Grieken, R.; Van 't dack, L. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
The elemental chemistry of sediments in the Krishna River basin, India |
Type |
A1 Journal article |
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Year |
1989 |
Publication |
Chemical geology |
Abbreviated Journal |
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Volume |
74 |
Issue |
3/4 |
Pages |
331-341 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
Composition of bed, core and suspended sediments collected from Krishna River sediments were studied and the observations are discussed in the light of other Indian rivers, world's average river suspended particles, surficial rock and soils. The contents of V, Cr, Co, Ni, Cu and Zn in the suspended particles are higher in the Krishna River than in the world's average, indicating pollution inputs. Suspended sediments are enriched (5 to 10 times) in all the elements considered relative to bed sediments. Downstream profile and metal/Al ratios of the elements indicate that the mobility of elements within the basin is controlled by basin geology, size and mineralogical characteristics. Good correlations observed for a number of elements point out to their common sink in the clay fraction of the sediments. There is no systematic variation with depth for the major elements and most of the elements are considerably higher compared to estuarine or Bay of Bengal sediments. |
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Wos |
A1989T007000012 |
Publication Date |
2003-08-06 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0009-2541 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Times cited |
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Open Access |
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Notes |
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Approved ![sorted by Approved field, ascending order (up)](img/sort_asc.gif) |
no |
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Call Number |
UA @ admin @ c:irua:111482 |
Serial |
7885 |
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Permanent link to this record |
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Author |
Das, B.K.; Singh, M.; Van Grieken, R. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
The elemental chemistry of sediments in the Nainital lake, Kumaun Himalaya, India |
Type |
A1 Journal article |
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Year |
1995 |
Publication |
The science of the total environment |
Abbreviated Journal |
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Volume |
168 |
Issue |
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Pages |
85-90 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
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Address |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
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Editor |
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Language |
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Wos |
A1995RH03700008 |
Publication Date |
2002-07-25 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0048-9697; 1879-1026 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
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Times cited |
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Open Access |
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Notes |
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Approved ![sorted by Approved field, ascending order (up)](img/sort_asc.gif) |
no |
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Call Number |
UA @ admin @ c:irua:12347 |
Serial |
7886 |
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Author |
Smekens, A.; Knupfer, M.; Berghmans, P.; Van Grieken, R. |
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Title |
The elemental composition and microstructure of soot emitted by different sources |
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A1 Journal article |
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Year |
2000 |
Publication |
Journal of aerosol science |
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Volume |
31 |
Issue |
S1 |
Pages |
917-918 |
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A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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ISSN |
0021-8502; 1879-1964 |
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UA library record |
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Call Number |
UA @ admin @ c:irua:31647 |
Serial |
7887 |
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Author |
Rojas, C.M.; Van Grieken, R.; Maenhaut, W. |
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Title |
Elemental composition of aircraft-sampled aerosols above the Southern Bight of the North Sea |
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A1 Journal article |
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Year |
1993 |
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Water, air and soil pollution |
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Volume |
71 |
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Pages |
391-404 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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A1993MT74000011 |
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2004-11-15 |
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ISSN |
0049-6979; 1573-2932 |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Call Number |
UA @ admin @ c:irua:6263 |
Serial |
7888 |
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Author |
Hellar-Kihampa, H.; Potgieter-Vermaak, S.; van Meel, K.; Gatto Rotondo, G.; Kishimba, M.; Van Grieken, R. |
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Title |
Elemental composition of bottom-sediments from Pangani river basin, Tanzania : lithogenic and anthropogenic sources |
Type |
A1 Journal article |
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Year |
2012 |
Publication |
Toxicological and environmental chemistry |
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Volume |
94 |
Issue |
3 |
Pages |
525-544 |
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Keywords |
A1 Journal article; Pharmacology. Therapy; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
River-bed sediments from the Pangani basin, Tanzania, were characterized for elemental compositions, following contamination risks from rapid expansions of human activities in the area. Samples were collected during two individual seasons and analyzed by high-polarizing beam energy dispersive X-ray fluorescence (EDXRF) for eight major and 14 trace elements. Evaluation of enrichment factors (EFs) was used to investigate the elemental flux and assess the contributions of natural and anthropogenic influences. The abundances of the major elements followed the order Si > Al > Fe > Ca > K > Ti > Mn > P, similar to that of the upper earth's crust, and were generally from the weathering of the bed-rock. The high concentrations of typical anthropogenic trace-elements (Cr < 160 mg kg−1, V < 85 mg kg−1, Ni < 60 mg kg−1, Cu < 87 mg kg−1, La < 90 mg kg−1) coupled with high EFs (>2) in some locations indicated contamination associated with agricultural and industrial activities. Factor analysis extracted five principal components that contributed to 96.0% of the total observed variance. The results indicated that river-bed sediments of the Pangani basin were influenced to a larger extent by lithogenic sources than anthropogenic impacts. |
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000304276100007 |
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2012-01-16 |
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ISSN |
0277-2248 |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Approved ![sorted by Approved field, ascending order (up)](img/sort_asc.gif) |
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Call Number |
UA @ admin @ c:irua:97080 |
Serial |
7889 |
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Permanent link to this record |
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Author |
Eltayeb, M.A.H.; Injuk, J.; Maenhaut, W.; Van Grieken, R.E. |
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Title |
Elemental composition of mineral aerosol generated from Sudan Sahara sand |
Type |
A1 Journal article |
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Year |
2001 |
Publication |
Journal of atmospheric chemistry |
Abbreviated Journal |
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Volume |
40 |
Issue |
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Pages |
247-273 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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000171535300003 |
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2002-12-23 |
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ISSN |
0167-7764 |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Call Number |
UA @ admin @ c:irua:36088 |
Serial |
7890 |
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Author |
Silva, F.S.; Godoi, R.H.M.; Tauler, R.; de André, P.A.; Saldiva, P.H.N.; Van Grieken, R.; de Marchi, M.R.R. |
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Title |
Elemental composition of PM2.5 in Araraquara City (Southeast Brazil) during seasons with and without sugar cane burning |
Type |
A2 Journal article |
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Year |
2015 |
Publication |
Journal of environmental protection |
Abbreviated Journal |
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Volume |
6 |
Issue |
5 |
Pages |
426-434 |
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Keywords |
A2 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
Particulate matter with an aerodynamic diameter below 2.5 μm (PM2.5), present in polluted air, has been associated with a large spectrum of health impairments, mainly because of its deep deposition into the lungs. Araraquara City (Southeast Brazil) is surrounded by sugar-cane plantations, which are burned to facilitate the harvesting; this process causes environmental pollution due to the large amounts of soot that are released into the atmosphere. In this work, the elemental composition of PM2.5 was studied in two scenarios, namely in sugar-cane harvesting (HV) and in non-harvesting (NHV) seasons. The sampling strategy included one campaign in each season. PM2.5 was collected using a dichotomous sampler (10 L·min-1, 24 h) with PTFE filters. Information concerning the bulk elemental concentration was provided by energy-dispersive X-ray fluorescence. Enrichment factor analysis indicated that S, Cl, K, Cr, Ni, Cu, Zn, As, Cd and Pb were highly enriched relative to their crustal ratios (to Al). Principal component analysis was used to get some insight about the sources of the elements. Principal component 1 (PC1) explained 30.5% of data variance. The elements that had high loading (>0.7) were: S, Cr, As, and Pb; these are associated with combustion of fossil fuels. In principal component 2 (PC2), Cl, Cu, Zn, and Cd showed high loadings; these elements are associated with biomass burning. The Ni concentration found is three times larger than the threshold of risk for lung cancer, as recommended by the World Health Organization. |
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Publication Date |
2015-05-04 |
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Edition |
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ISSN |
2152-2197 |
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UA library record |
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Approved ![sorted by Approved field, ascending order (up)](img/sort_asc.gif) |
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Call Number |
UA @ admin @ c:irua:125885 |
Serial |
7891 |
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Permanent link to this record |