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Author |
Hołynska, B.; Olko, M.; Ostachowicz, B.; Ostachowicz, J.; Wegrzynek, D.; Claes, M.; Van Grieken, R.; de Bokx, P.; Kump, P.; Necemer, M. |
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Title |
Performance of total reflection and grazing emission X-ray fluorescence spectrometry for the determination of trace metals in drinking water in relation to other analytical techniques |
Type |
A1 Journal article |
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Year |
1998 |
Publication |
Fresenius' journal of analytical chemistry |
Abbreviated Journal |
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Volume |
362 |
Issue |
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Pages |
294-298 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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000076461600011 |
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2002-08-25 |
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ISSN |
0937-0633; 1432-1130 |
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UA library record; WoS full record; WoS citing articles |
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no |
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Call Number |
UA @ admin @ c:irua:22775 |
Serial |
8372 |
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Author |
Janssens, K.; de Raedt, I.; Vincze, L.; Vekemans, B.; Adams, F.; Haller, M.; Knöchel, A. |
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Title |
Composition of 15-17th century archaeological glass vessels excavated in Antwerp, Belgium |
Type |
A3 Journal article |
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Year |
1998 |
Publication |
HASYLAB Jahresbericht 1997 |
Abbreviated Journal |
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Volume |
1 |
Issue |
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Pages |
937-938 |
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Keywords |
A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Approved |
Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:22763 |
Serial |
5541 |
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Author |
Vincze, L.; Vekemans, B.; Janssens, K.; Adams, F.; Lippmann, T. |
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Title |
Evaluation of a Monte Carlo simulation for EDXRF spectrometers at beamline BW5, HASYLAB |
Type |
A3 Journal article |
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Year |
1998 |
Publication |
HASYLAB Jahresbericht 1997 |
Abbreviated Journal |
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Volume |
1 |
Issue |
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Pages |
1043-1044 |
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Keywords |
A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Approved |
Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:22762 |
Serial |
5610 |
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Author |
Vincze, L.; Vekemans, B.; Janssens, K.; Adams, F.; Haller, M. |
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Title |
Fluorescent tomography of metals in fly-ash particles at beamline L |
Type |
A3 Journal article |
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Year |
1998 |
Publication |
HASYLAB Jahresbericht 1997 |
Abbreviated Journal |
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Volume |
1 |
Issue |
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Pages |
959-960 |
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Keywords |
A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Approved |
Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:22761 |
Serial |
5624 |
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Author |
Janssens, K.H.; Deraedt, I.; Schalm, O.; Veeckman, J. |
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Title |
Composition of 15-17th century archaeological glass vessels excavated in Antwerp, Belgium |
Type |
A1 Journal article |
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Year |
1998 |
Publication |
Mikrochimica acta: supplementum |
Abbreviated Journal |
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Volume |
15 |
Issue |
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Pages |
253-267 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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000075322100036 |
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Series Issue |
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Edition |
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ISSN |
0076-8642 |
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UA library record; WoS full record; WoS citing articles |
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Notes |
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Approved |
Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:22213 |
Serial |
5540 |
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Author |
Haller, M.; Radtke, M.; Knöchel, A.; Clöck, W.; Sutton, S.; Janssens, K.; Vincze, L. |
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Title |
Quantification of SY-XRF measurements at the X-ray microprobe |
Type |
A3 Journal article |
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Year |
1996 |
Publication |
HASYLAB Jahresbericht |
Abbreviated Journal |
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Volume |
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Issue |
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Pages |
956-957 |
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Keywords |
A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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UA library record |
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Notes |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:21745 |
Serial |
5792 |
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Author |
Aerts, A.; Janssens, K.; Vincze, L.; Vekemans, B.; Adams, F.; Haller, M.; Radtke, M.; Knöchel, A. |
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Title |
Provenance analysis of Roman glass from the 1st-6th century A.D |
Type |
A3 Journal article |
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Year |
1996 |
Publication |
HASYLAB Jahresbericht |
Abbreviated Journal |
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Volume |
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Issue |
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Pages |
918-919 |
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Keywords |
A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:21744 |
Serial |
5790 |
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Author |
Rindby, A.; Engström, P.; Janssens, K. |
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Title |
The use of scanning X-ray microprobe for simultaneous XRF/XRD studies of fly-ash particles |
Type |
A3 Journal article |
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Year |
1997 |
Publication |
Journal of synchotron radiation |
Abbreviated Journal |
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Volume |
4 |
Issue |
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Pages |
228-235 |
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Keywords |
A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Open Access |
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Notes |
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Approved |
Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:21714 |
Serial |
5899 |
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Author |
Van Grieken, R. |
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Title |
Working close to the detection limits: XRF |
Type |
Minutes and reports |
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Year |
1998 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
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Keywords |
Minutes and reports; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Notes |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:20973 |
Serial |
8761 |
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Permanent link to this record |
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Author |
Playford, K.; Colin, J.L.; Pacyna, J.M.; Pirrone, N.; Schulz, M.; Van Grieken, R.; Wrembel, Z. |
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Title |
State-of-the-art and research needs for trace metals |
Type |
H3 Book chapter |
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Year |
1998 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
7-11
T2 - Sea-air exchange: processes and modellin |
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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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Approved |
no |
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Call Number |
UA @ admin @ c:irua:20972 |
Serial |
8580 |
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Permanent link to this record |
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Author |
Harrison, R.M.; Van Grieken, R.E. |
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Title |
Atmospheric particles |
Type |
ME3 Book as editor |
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Year |
1998 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
610 p. |
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Keywords |
ME3 Book as editor; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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UA library record |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:20971 |
Serial |
7528 |
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Permanent link to this record |
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Author |
Injuk, J.; de Bock, L.; Van Grieken, R. |
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Title |
Structural heterogeneity within airborne particles |
Type |
H3 Book chapter |
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Year |
1998 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
173-202
T2 - Atmospheric particles / Harrison, R.M |
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Keywords |
H3 Book chapter; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Edition |
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UA library record |
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Open Access |
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Notes |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:20969 |
Serial |
8586 |
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Permanent link to this record |
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Author |
Claes, M.; Gysels, K.; Van Grieken, R.; Harrison, R.M. |
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Title |
Inorganic compounds of atmospheric aerosols |
Type |
H3 Book chapter |
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Year |
1998 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
95-145
T2 - Atmospheric particles / Harrison, R.M. |
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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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Open Access |
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Notes |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:20968 |
Serial |
8104 |
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Permanent link to this record |
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Author |
Török, S.; Labar, J.; Schmeling, M.; Van Grieken, R. |
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Title |
X-ray spectrometry |
Type |
A1 Journal article |
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Year |
1998 |
Publication |
Analytical chemistry |
Abbreviated Journal |
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Volume |
70 |
Issue |
|
Pages |
495r-517r |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Wos |
000074161100020 |
Publication Date |
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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 |
0003-2700; 5206-882x |
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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Notes |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:20967 |
Serial |
8776 |
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Permanent link to this record |
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Author |
Injuk, J.; Van Grieken, R.; de Leeuw, G. |
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Title |
Deposition of atmospheric trace elements into the North Sea: coastal, ship, platform measurements and model predictions |
Type |
A1 Journal article |
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Year |
1998 |
Publication |
Atmospheric environment : an international journal |
Abbreviated Journal |
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Volume |
32 |
Issue |
|
Pages |
3011-3025 |
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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 |
000075270300013 |
Publication Date |
2002-07-26 |
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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 |
no |
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Call Number |
UA @ admin @ c:irua:20966 |
Serial |
7761 |
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Permanent link to this record |
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Author |
Ganor, E.; Levin, Z.; Van Grieken, R. |
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Title |
Composition of individual aerosol particles above the Israelian Mediterranean coast during the summer time |
Type |
A1 Journal article |
|
Year |
1998 |
Publication |
Atmospheric environment : an international journal |
Abbreviated Journal |
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Volume |
32 |
Issue |
|
Pages |
1631-1642 |
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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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Publisher |
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Place of Publication |
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Editor |
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Language |
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Wos |
000073711400016 |
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 |
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 |
no |
|
|
Call Number |
UA @ admin @ c:irua:20965 |
Serial |
7710 |
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Permanent link to this record |
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Author |
Moropoulou, A.; Bisbikou, K.; Torfs, K.; Van Grieken, R.; Zezza, F.; Macri, F. |
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Title |
Origin and growth of weathering crusts on ancient marbles in industrial atmosphere |
Type |
A1 Journal article |
|
Year |
1998 |
Publication |
Atmospheric environment : an international journal |
Abbreviated Journal |
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Volume |
32 |
Issue |
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Pages |
967-982 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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000073710900002 |
Publication Date |
2002-07-26 |
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ISSN |
1352-2310 |
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UA library record; WoS full record; WoS citing articles |
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no |
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Call Number |
UA @ admin @ c:irua:20964 |
Serial |
8348 |
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Permanent link to this record |
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Author |
Sweevers, H.; Delalieux, F.; Van Grieken, R. |
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Title |
Weathering of dolomitic sandstone under ambient conditions |
Type |
A1 Journal article |
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Year |
1998 |
Publication |
Atmospheric environment : an international journal |
Abbreviated Journal |
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Volume |
32 |
Issue |
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Pages |
733-748 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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000072754200012 |
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2002-07-25 |
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ISSN |
1352-2310 |
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UA library record; WoS full record; WoS citing articles |
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Open Access |
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no |
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Call Number |
UA @ admin @ c:irua:20963 |
Serial |
8753 |
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Author |
Dekov, V.M.; Araujo, F.; Van Grieken, R.; Subramanian, V. |
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Title |
Chemical composition of sediments and suspended matter from the Cauvery and Brahmaputra rivers (India) |
Type |
A1 Journal article |
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Year |
1998 |
Publication |
The science of the total environment |
Abbreviated Journal |
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Volume |
212 |
Issue |
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Pages |
89-105 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Wos |
000073203500001 |
Publication Date |
2002-07-26 |
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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 |
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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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no |
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Call Number |
UA @ admin @ c:irua:20962 |
Serial |
7656 |
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Permanent link to this record |
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Author |
Facetti, J.; Dekov, V.M.; Van Grieken, R. |
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Title |
Heavy metals in sediments from the Paraguay river: a preliminary study |
Type |
A1 Journal article |
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Year |
1998 |
Publication |
The science of the total environment |
Abbreviated Journal |
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Volume |
209 |
Issue |
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Pages |
79-86 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Wos |
000072368900008 |
Publication Date |
2002-07-26 |
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Series Editor |
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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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Open Access |
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no |
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Call Number |
UA @ admin @ c:irua:20961 |
Serial |
8025 |
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Permanent link to this record |
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Author |
Hoornaert, S.; Treiger, B.; Valkovic, V.; Van Grieken, R. |
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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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000071438000010 |
Publication Date |
2005-02-26 |
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Abbreviated Series Title |
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Series Volume |
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Edition |
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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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Open Access |
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no |
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Call Number |
UA @ admin @ c:irua:20960 |
Serial |
7873 |
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Author |
de Bock, L.A.; Treiger, B.; van der Auwera, L.; Van Grieken, R.E. |
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Title |
Extraction of environmental information from large aerosol data sets through combined application of cluster and factor analysis |
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 |
191-200 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Wos |
000071438000008 |
Publication Date |
2005-02-26 |
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Series Editor |
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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 |
0026-3672; 1436-5073 |
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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Open Access |
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no |
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Call Number |
UA @ admin @ c:irua:20959 |
Serial |
7955 |
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Author |
Kummamuru, N.B. |
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Title |
Methane and hydrogen storage in clathrate hydrates |
Type |
Doctoral thesis |
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Year |
2024 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
XXV, 260 p. |
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Keywords |
Doctoral thesis; Engineering sciences. Technology; Antwerp engineering, PhotoElectroChemistry & Sensing (A-PECS) |
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Abstract |
In a world increasingly reliant on alternative energy sources, the quest for efficient and secure storage solutions is paramount. This doctoral thesis explores the exciting potential of a familiar material – water – to act as a vault for next-generation energy sources like hydrogen (H2) and methane (CH4). Nature offers a solution in the form of clathrate hydrates, fascinating cage-like structures formed from water molecules that can trap these gas molecules within their framework. This research investigates on improving the formation kinetics and gas storage capabilities of clathrate hydrates utilizing porous materials and the interstitial space between non-porous materials to augment the contact between gas and water thereby catalysing the growth of hydrates and unlocking their full potential as efficient and secure energy storage reservoirs. A key outcome of this research is the formulation of an empirical correlation, offering predictive insights into CH4 hydrate phase equilibrium conditions. Innovative approaches utilizing thermally conductive beads have yielded substantial enhancements in CH4 uptake. Furthermore, the identification of optimal water content within porous materials showcases a pathway to maximize CH4 storage capacity and hydrate growth kinetics. In the domain of hydrogen storage, attention is also directed towards unstirred systems, where the integration of functionalized porous materials has demonstrated a significant improvement in the rate of hydrate formation and the overall H2 storage capacity. A noteworthy achievement of this research lies in the successful storage of H2 within confined CH4 hydrates through a gas exchange process and the preliminary results show the potential for safer and more sustainable method for H2 storage at mild thermodynamic conditions, offering promising prospects for future energy systems. |
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UA library record |
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Approved |
Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:206258 |
Serial |
9160 |
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Permanent link to this record |
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Author |
Lu, Q. |
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Title |
Precipitation behavior and heat resistance properties of Al-Cu-Mg-Ag-(Si) alloy |
Type |
Doctoral thesis |
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Year |
2024 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
VIII, 212 p. |
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Keywords |
Doctoral thesis; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) |
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Abstract |
With the rapid increase in the speed of new-generation aerospace vehicles, conventional heat-resistant aluminum alloys cannot meet the long-term service of the equipment. Therefore, the development of new high-strength heat-resistant aluminum alloys is of great strategic for the sustainable and high-quality development of industries. Al-Cu-Mg-Ag alloy is an age-hardenable heat-resistant aluminum alloy and has high strength and heat resistance. The addition of alloying elements such as Si and Sc to Al-Cu-Mg-Ag alloy introduces a competitive relationship among the σ-Al5Cu6Mg2, θ′-Al2Cu, and Ω phases. Therefore, a systematic investigation of precipitation behavior and heat resistance of Al-Cu-Mg-Ag-(Si) is essential for guiding the design of high-strength heat-resistant aluminum alloys. Combined characterization testing methods such as scanning electron microscopy, transmission electron microscopy, atom probe tomography, microhardness testing, and tensile testing with simulation calculation methods such as calculation of phase diagram, first-principles calculations, and Ab initio molecular dynamics, the effects of heat treatment processes and element content on the precipitation behavior, mechanical properties, and heat resistance of Al-Cu-Mg-Ag-(Si) alloys were systematically investigated. Furthermore, a multiple interface segregation structure was constructed at the θ′/Al interface, and a new Al-Cu-Mg-Ag-Si-Sc alloy with synergistically improved strength and heat resistance was developed. The main conclusions are as follows: (1) Based on the Kampmann-Wagner-Numerical theory, the relationship between the coarsening rate of the Ω phase and the aging process was analyzed, revealing for the first time that the critical size of Ω phase ( ) under thermal exposure temperature was the key factor determining the coarsening rate of Ω phase during long time thermal exposure heat treatment. After artificial ageing, when the size of Ω phase was smaller than the critical size , the dissolution of smaller Ω phase leaded to a rapid decrease in the number density of Ω phases, thereby reducing the heat resistance of the alloy. When the size of Ω phase was greater than or equal to the critical size , the coarsening rate of Ω phase was consistent, but a larger initial size would result in a larger final size after long-term thermal exposure. Therefore, the closer the size of Ω phase in the alloy is to the critical size under heat exposure temperature, the better the heat resistance of the alloy. (2) A concept of constructing a multiple interface segregation structure at the precipitate/matrix interface was proposed, and based on this concept, a multiple interface segregation structure containing the C/L-AlMgSiCu interfacial phase, newly discovered χ-AgMg interfacial phase, and Sc segregation layer was successfully constructed at the θ′/Al interface. The existence of the multiple interface segregation structure ensured that the designed Al-Cu-Mg-Ag-Si-Sc alloy maintains a yield strength of 400 MPa after thermal exposure at 200 C for 100 h, with a strength retention rate of 97%, creating a new record for the synergistic improvement of strength and heat resistance in aluminum alloys. In addition, combining transmission electron microscopy ex-situ/in-situ characterization with first-principles calculations, it is shown that the χ-AgMg interface phase will be destroyed due to the diffusion of the outer Ag layer during thermal exposure, and gradually dissolve into the matrix, but it can still delay the coarsening behavior of θ′-Al2Cu phase. (3) The criteria for determining whether Ω phase can precipitate are updated in Al-Cu-Mg-Ag-Si alloys with low Mg/Si ratio based on phase diagram thermodynamic calculations and multi-scale structural characterization. When W(Mg)/W(Si) > 1.4 and X(Ag)/X(Mgexcess) > 1, Ω phase can precipitate in Al-Cu-Mg-Ag-Si alloys, where X(Mgexcess) represents the atomic percentage of residual Mg elements after the formation of the AlMgSiCu quaternary precipitate phase C/L phase in the supersaturated solid solution, and the W(Mg) is the mass fraction of Mg in the supersaturated solid solution before artificial ageing. (4) The effects of alloy element content on precipitation behavior and heat resistance of Al-Cu-Mg-Ag-Si alloys were systematically analyzed. Critical conditions for the precipitation of σ-Al5Cu6Mg2 and Ω phase in Al-Cu-Mg-Ag-Si alloys are revealed. Based on calculation of phase diagram results, the conditions for precipitating σ-Al5Cu6Mg2 phase in the alloy are: ① W(Mg)/W(Si) > 1.8; ② W(Cu) > 2.7W(Mg) – 5W(Si). When W(Mg)/W(Si) < 1.8, the alloy is mainly precipitated with C/L/Q′-AlMgSiCu. When W(Cu) < 2.7W(Mg) – 5W(Si), the alloy will generate GPB zone. In addition, W(Ag)/W(Si) > 4 is the critical condition which the Ω phase can the main precipitates in Al-Cu-Mg-Ag-Si alloys. Furthermore, the correlation between precipitate types and heat resistance was summarized, showing that Al-Cu-Mg-Ag-(Si) alloys with Ω phase as the main strengthening phase are more suitable for the preparation of structures with short service time but high temperature, while Al-Cu-Mg-Ag-(Si) alloys with low Mg content and multiple segregation structures are more suitable for structures requiring long-term service at medium to high temperatures. This study, for the first time, combines calculation of phase diagram with multi-scale microstructure characterization, systematically unraveling the effects of element content on precipitation behavior, strength, and heat resistance of Al-Cu-Mg-Ag-(Si) alloys. In addition, a concept of constructing a multiple interface segregation structure at the precipitate/matrix interface was proposed to synergistically improve alloy strength and heat resistance. This work provides theoretical guidance for optimizing the composition and processing of Al-Cu-Mg-Ag-(Si) alloy and regulating the microstructure. Furthermore, it also offers new ideas and theoretical guidance for the development of novel high-strength heat-resistant alloys in other systems. |
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UA library record |
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Open Access |
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Approved |
Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:206180 |
Serial |
9167 |
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Permanent link to this record |
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Author |
Lembrechts, J.; Clavel, J.; Lenoir, J.; Haider, S.; McDougall, K.; Nunez, M.; Alexander, J.; Barros, A.; Milbau, A.; Seipel, T.; Verbruggen, E.; Nijs, I. |
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Title |
Dataset: Roadside disturbance promotes plant communities with arbuscular mycorrhizal associations in mountain regions worldwide |
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Dataset |
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Year |
2024 |
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Keywords |
Dataset; Plant and Ecosystems (PLECO) – Ecology in a time of change |
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Abstract |
Aim: We aimed to assess the impact of road disturbances on the dominant mycorrhizal types in ecosystems at the global level and how this mechanism can potentially lead to lasting plant community changes. Location: Globally distributed mountain regions Time Period: 2007-2018 Taxa studied: Plants (linked to their associated mycorrhizal fungi) Methods: We used a database of coordinated plant community surveys following mountain roads from 894 plots in 11 mountain regions across the globe in combination with an existing database of mycorrhizal-plant associations in order to approximate the relative abundance of mycorrhizal types in natural and disturbed environments. Results: Our findings show that roadside disturbance promotes the cover of plants associated with arbuscular mycorrhizal (AM) fungi. This effect is especially strong in colder mountain environments and in mountain regions where plant communities are dominated by ectomycorrhizal (EcM) or ericoid-mycorrhizal (ErM) associations. Furthermore, non-native plant species, which we confirmed to be mostly AM plants, are more successful in environments dominated by AM associations. Main Conclusions: These biogeographical patterns suggest that changes in mycorrhizal types could be a crucial factor in the worldwide impact of anthropogenic disturbances on mountain ecosystems. Indeed, roadsides foster AM-dominated systems, where AM-fungi might aid AM-associated plant species while potentially reducing the biotic resistance against invasive non-native species, often also associated with AM networks. Restoration efforts in mountain ecosystems will have to contend with changes in the fundamental make-up of EcM- and ErM plant communities induced by roadside disturbance. |
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UA library record |
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Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:206132 |
Serial |
9198 |
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Permanent link to this record |
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Author |
Gao, Y.-J.; Jin, H.; Esteban, D.A.; Weng, B.; Saha, R.A.; Yang, M.-Q.; Bals, S.; Steele, J.A.; Huang, H.; Roeffaers, M.B.J. |
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Title |
3D-cavity-confined CsPbBr₃ quantum dots for visible-light-driven photocatalytic C(sp³)-H bond activation |
Type |
A1 Journal article |
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Year |
2024 |
Publication |
Carbon Energy |
Abbreviated Journal |
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Volume |
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Pages |
e559 |
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Keywords |
A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) |
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Abstract |
Metal halide perovskite (MHP) quantum dots (QDs) offer immense potential for several areas of photonics research due to their easy and low-cost fabrication and excellent optoelectronic properties. However, practical applications of MHP QDs are limited by their poor stability and, in particular, their tendency to aggregate. Here, we develop a two-step double-solvent strategy to grow and confine CsPbBr3 QDs within the three-dimensional (3D) cavities of a mesoporous SBA-16 silica scaffold (CsPbBr3@SBA-16). Strong confinement and separation of the MHP QDs lead to a relatively uniform size distribution, narrow luminescence, and good ambient stability over 2 months. In addition, the CsPbBr3@SBA-16 presents a high activity and stability for visible-light-driven photocatalytic toluene C(sp(3))-H bond activation to produce benzaldehyde with similar to 730 mu mol g(-1) h(-1) yield rate and near-unity selectivity. Similarly, the structural stability of CsPbBr3@SBA-16 QDs is superior to that of both pure CsPbBr3 QDs and those confined in MCM-41 with 1D channels. |
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001223583600001 |
Publication Date |
2024-05-16 |
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Edition |
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ISSN |
2637-9368 |
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UA library record; WoS full record |
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Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:206000 |
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9133 |
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Author |
Shafiei, M.; Fazileh, F.; Peeters, F.M.; Milošević, M.V. |
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Floquet engineering of axion and high-Chern number phases in a topological insulator under illumination |
Type |
A1 Journal article |
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Year |
2024 |
Publication |
SciPost Physics Core |
Abbreviated Journal |
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Volume |
7 |
Issue |
7 |
Pages |
024-16 |
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A1 Journal article; Condensed Matter Theory (CMT) |
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Abstract |
Quantum anomalous Hall, high-Chern number, and axion phases in topological insulators are characterized by its Chern invariant C (respectively, C = 1, integer C > 1, and C = 0 with half-quantized Hall conductance of opposite signs on top and bottom surfaces). They are of recent interest because of novel fundamental physics and prospective applications, but identifying and controlling these phases has been challenging in practice. Here we show that these states can be created and switched between in thin films of Bi2Se3 by Floquet engineering, using irradiation by circularly polarized light. We present the calculated phase diagrams of encountered topological phases in Bi2Se3, as a function of wavelength and amplitude of light, as well as sample thickness, after properly taking into account the penetration depth of light and the variation of the gap in the surface states. These findings open pathways towards energy-efficient optoelectronics, advanced sensing, quantum information processing and metrology. |
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001217885300001 |
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2024-05-01 |
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UA library record; WoS full record |
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Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:205972 |
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9151 |
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Author |
Long, Y.; Wang, X.; Zhang, H.; Wang, K.; Ong, W.-L.; Bogaerts, A.; Li, K.; Lu, C.; Li, X.; Yan, J.; Tu, X.; Zhang, H. |
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Title |
Plasma chemical looping : unlocking high-efficiency CO₂ conversion to clean CO at mild temperatures |
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A1 Journal article |
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2024 |
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JACS Au |
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A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
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We propose a plasma chemical looping CO2 splitting (PCLCS) approach that enables highly efficient CO2 conversion into O-2-free CO at mild temperatures. PCLCS achieves an impressive 84% CO2 conversion and a 1.3 mmol g(-1) CO yield, with no O-2 detected. Crucially, this strategy significantly lowers the temperature required for conventional chemical looping processes from 650 to 1000 degrees C to only 320 degrees C, demonstrating a robust synergy between plasma and the Ce0.7Zr0.3O2 oxygen carrier (OC). Systematic experiments and density functional theory (DFT) calculations unveil the pivotal role of plasma in activating and partially decomposing CO2, yielding a mixture of CO, O-2/O, and electronically/vibrationally excited CO2*. Notably, these excited CO2* species then efficiently decompose over the oxygen vacancies of the OCs, with a substantially reduced activation barrier (0.86 eV) compared to ground-state CO2 (1.63 eV), contributing to the synergy. This work offers a promising and energy-efficient pathway for producing O-2-free CO from inert CO2 through the tailored interplay of plasma and OCs. |
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001225139200001 |
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2024-05-08 |
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UA library record; WoS full record |
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Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:205970 |
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9166 |
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Author |
Cioni, M.; Delle Piane, M.; Polino, D.; Rapetti, D.; Crippa, M.; Arslan Irmak, E.; Pavan, G.M.; Van Aert, S.; Bals, S. |
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Data for Sampling Real‐Time Atomic Dynamics in Metal Nanoparticles by Combining Experiments, Simulations, and Machine Learning |
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2024 |
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Dataset; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) |
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Even at low temperatures, metal nanoparticles (NPs) possess atomic dynamics that are key for their properties but challenging to elucidate. Recent experimental advances allow obtaining atomic‐resolution snapshots of the NPs in realistic regimes, but data acquisition limitations hinder the experimental reconstruction of the atomic dynamics present within them. Molecular simulations have the advantage that these allow directly tracking the motion of atoms over time. However, these typically start from ideal/perfect NP structures and, suffering from sampling limits, provide results that are often dependent on the initial/putative structure and remain purely indicative. Here, by combining state‐of‐the‐art experimental and computational approaches, how it is possible to tackle the limitations of both approaches and resolve the atomistic dynamics present in metal NPs in realistic conditions is demonstrated. Annular dark‐field scanning transmission electron microscopy enables the acquisition of ten high‐resolution images of an Au NP at intervals of 0.6 s. These are used to reconstruct atomistic 3D models of the real NP used to run ten independent molecular dynamics simulations. Machine learning analyses of the simulation trajectories allows resolving the real‐time atomic dynamics present within the NP. This provides a robust combined experimental/computational approach to characterize the structural dynamics of metal NPs in realistic conditions. |
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Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:205843 |
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9143 |
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Author |
Brognara, A.; Kashiwar, A.; Jung, C.; Zhang, X.; Ahmadian, A.; Gauquelin, N.; Verbeeck, J.; Djemia, P.; Faurie, D.; Dehm, G.; Idrissi, H.; Best, J.P.; Ghidelli, M. |
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Tailoring mechanical properties and shear band propagation in ZrCu metallic glass nanolaminates through chemical heterogeneities and interface density |
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A1 Journal article |
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2024 |
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Small Structures |
Abbreviated Journal |
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2400011-11 |
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A1 Journal article; Electron microscopy for materials research (EMAT) |
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The design of high‐performance structural thin films consistently seeks to achieve a delicate equilibrium by balancing outstanding mechanical properties like yield strength, ductility, and substrate adhesion, which are often mutually exclusive. Metallic glasses (MGs) with their amorphous structure have superior strength, but usually poor ductility with catastrophic failure induced by shear bands (SBs) formation. Herein, we introduce an innovative approach by synthesizing MGs characterized by large and tunable mechanical properties, pioneering a nanoengineering design based on the control of nanoscale chemical/structural heterogeneities. This is realized through a simplified model Zr 24 Cu 76 /Zr 61 Cu 39 , fully amorphous nanocomposite with controlled nanoscale periodicity ( Λ , from 400 down to 5 nm), local chemistry, and glass–glass interfaces, while focusing in‐depth on the SB nucleation/propagation processes. The nanolaminates enable a fine control of the mechanical properties, and an onset of crack formation/percolation (>1.9 and 3.3%, respectively) far above the monolithic counterparts. Moreover, we show that SB propagation induces large chemical intermixing, enabling a brittle‐to‐ductile transition when Λ ≤ 50 nm, reaching remarkably large plastic deformation of 16% in compression and yield strength ≈2 GPa. Overall, the nanoengineered control of local heterogeneities leads to ultimate and tunable mechanical properties opening up a new approach for strong and ductile materials. |
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2024-05-20 |
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2688-4062 |
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UA library record |
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Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:205798 |
Serial |
9176 |
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