Home << 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 >> [101–200]
List View
 | 
Citations
 | 
Details
   web
Records
Author Schalm, O.; Caluwé, D.; Wouters, H.; Janssens, K.; Verhaeghe, F.; Pieters, M.
Title Chemical composition and deterioration of glass excavated in the 15th-16th century fishermen town of Raversijde (Belgium) Type A1 Journal article
Year 2004 Publication Spectrochimica acta: part A: molecular and biomolecular spectroscopy Abbreviated Journal Spectrochim Acta A
Volume 59 Issue Pages 1647-1656
Keywords A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
Abstract The chemical composition, as determined by electron probe X-ray microanalysis of a series of ca. 100 archaeological glass fragments, excavated at the Raversijde site (Belgium) is discussed. In the 15th-16th century, Raversijde was a flourishing fishermen town located on the shore of the North Sea, close to the city of Ostend. As a consequence of several battles that were fought in its vicinity, the site was abandoned in the 16th century and was not occupied since then. It is one of the rare archaeological sites in Europe that contains a significant amount of information on the daily life inside a small but affluent medieval community. A comparison of the chemical composition of fragments of vessels and window glass encountered in Raversijde to those found in urban centres in Belgium and to literature date on German and French archaeological finds shows that glass made with wood ash dominates. Usually, it concerns artifacts with a predominantly utilitarian use. A few objects made with sodic (i.e., Na-rich) glass were also encountered, likely to have been imported from Venice during the 15th century or in later periods from an urban centre such as Antwerp, where Facon-de-Venice glass manufacturing activities were established near the start of the 16th century. (C) 2004 Elsevier B.V. All rights reserved.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos 000224848000021 Publication Date (up) 2004-10-13
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1386-1425 ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor 2.536 Times cited 26 Open Access
Notes Approved Most recent IF: 2.536; 2004 IF: 1.188
Call Number UA @ admin @ c:irua:49011 Serial 5512
Permanent link to this record
 
 
Author Janssens, K.; Proost, K.; Falkenberg, G.
Title Confocal microscopic X-ray fluorescence at the HASYLAB microfocus beamline: characteristics and possibilities Type A1 Journal article
Year 2004 Publication Spectrochimica acta: part A: molecular and biomolecular spectroscopy Abbreviated Journal Spectrochim Acta A
Volume 59 Issue Pages 1637-1645
Keywords A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos 000224848000020 Publication Date (up) 2004-10-13
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1386-1425 ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor 2.536 Times cited 102 Open Access
Notes Approved Most recent IF: 2.536; 2004 IF: 1.188
Call Number UA @ admin @ c:irua:49010 Serial 5555
Permanent link to this record
 
 
Author Cao, L.-H.; Yu, W.; Xu, H.; Zheng, C.-Y.; Liu, Z.-J.; Li, B.; Bogaerts, A.
Title Terahertz radiation from oscillating electrons in laser-induced wake fields Type A1 Journal article
Year 2004 Publication Physical review : E : statistical physics, plasmas, fluids, and related interdisciplinary topics Abbreviated Journal Phys Rev E
Volume 70 Issue Pages 046408,1-7
Keywords A1 Journal article; Condensed Matter Theory (CMT); Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Abstract Strong terahertz (1THz=1012Hz) radiation can be generated by the electron oscillation in fs-laser-induced wake fields. The interaction of a fs-laser pulse with a low-density plasma layer is studied in detail using numerical simulations. The spatial distribution and temporal evolution of terahertz electron current developed in a low-density plasma layer are presented, which enables us to calculate the intensity distribution of THz radiation. It is shown that laser and plasma parameters, such as laser intensity, pulse width, and background plasma density, are of key importance to the process. The optimum condition for wake-field excitation and terahertz emission is discussed upon the simulation results. Radiation peaked at 6.4 THz, with 900 fs duration and 9% bandwidth, can be generated in a plasma of density 5×1017cm−3. It turns out that the maximum radiation intensity scales as n03a04 when wake field is resonantly excited, where n0 and a0 are, respectively, the plasma density and the normalized field amplitude of the laser pulse.
Address
Corporate Author Thesis
Publisher Place of Publication Lancaster, Pa Editor
Language Wos 000225689600086 Publication Date (up) 2004-10-14
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1539-3755;1550-2376; ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor 2.366 Times cited 9 Open Access
Notes Approved Most recent IF: 2.366; 2004 IF: NA
Call Number UA @ lucian @ c:irua:49818 Serial 3509
Permanent link to this record
 
 
Author Wang, X.F.; Vasilopoulos, P.; Peeters, F.M.
Title Band structure of a two-dimensional electron gas in the presence of two-dimensional electric and magnetic modulations and a perpendicular magnetic field Type A1 Journal article
Year 2004 Publication Physical review : B : condensed matter and materials physics Abbreviated Journal Phys Rev B
Volume 70 Issue Pages 155312,1-8
Keywords A1 Journal article; Condensed Matter Theory (CMT)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Lancaster, Pa Editor
Language Wos 000224855900054 Publication Date (up) 2004-10-19
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1098-0121;1550-235X; ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor 3.836 Times cited 6 Open Access
Notes Approved Most recent IF: 3.836; 2004 IF: 3.075
Call Number UA @ lucian @ c:irua:69393 Serial 218
Permanent link to this record
 
 
Author Maes, J.; Hayne, M.; Sidor, Y.; Partoens, B.; Peeters, F.M.; González, Y.; González, L.; Fuster, D.; Garcia, J.M.; Moshchalkov, V.V.
Title Electron wave-function spillover in self-assembled InAs/InP quantum wires Type A1 Journal article
Year 2004 Publication Physical review : B : condensed matter and materials physics Abbreviated Journal Phys Rev B
Volume 70 Issue Pages 155311,1-7
Keywords A1 Journal article; Condensed Matter Theory (CMT)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Lancaster, Pa Editor
Language Wos 000224855900053 Publication Date (up) 2004-10-19
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1098-0121;1550-235X; ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor 3.836 Times cited 43 Open Access
Notes Approved Most recent IF: 3.836; 2004 IF: 3.075
Call Number UA @ lucian @ c:irua:62435 Serial 994
Permanent link to this record
 
 
Author van Put, A.; Vertes, A.; Wegrzynek, D.; Treiger, B.; Van Grieken, R.
Title Quantitative characterization of individual particle surfaces by fractal analysis of scanning electron microscope images Type A1 Journal article
Year 1994 Publication Fresenius' journal of analytical chemistry Abbreviated Journal
Volume 350 Issue Pages 440-447
Keywords A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos A1994PR64400005 Publication Date (up) 2004-10-19
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0937-0633; 1432-1130 ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor Times cited Open Access
Notes Approved no
Call Number UA @ admin @ c:irua:9505 Serial 8442
Permanent link to this record
 
 
Author Tavernier, M.B.; Anisimovas, E.; Peeters, F.M.
Title Correlation between electrons and vortices in quantum dots Type A1 Journal article
Year 2004 Publication Physical review : B : condensed matter and materials physics Abbreviated Journal Phys Rev B
Volume 70 Issue Pages 155321,1-8
Keywords A1 Journal article; Condensed Matter Theory (CMT)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Lancaster, Pa Editor
Language Wos 000224855900063 Publication Date (up) 2004-10-23
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1098-0121;1550-235X; ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor 3.836 Times cited 26 Open Access
Notes Approved Most recent IF: 3.836; 2004 IF: 3.075
Call Number UA @ lucian @ c:irua:69394 Serial 522
Permanent link to this record
 
 
Author Nistor, L.C.; van Landuyt, J.; Ralchenko, V.G.; Kononenko, T.V.; Obraztsova, E.D.; Strelnitsky, V.E.
Title Direct observation of laser-induced crystallization of a-C : H films Type A1 Journal article
Year 1994 Publication Applied physics A : materials science & processing Abbreviated Journal
Volume 58 Issue 2 Pages 137-144
Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract The post-growth modification of diamond-like amorphous hydrogenated carbon a-C:H films by laser treatment has been studied by transmission electron microscopy and Raman spectroscopy. a-C:H films grown on Si substrates by benzene decomposition in a rf glow discharge were irradiated with 15 ns pulses of a KrF-excimer laser with fluences in the ran e of E = 50-700 mJ/cm(2). At fluences below 100 mJ/cm(2) an increase in the number of graphitic clusters and in their ordering was evidenced from Raman spectra, while the film structure remained amorphous according to electron microscopy and electron diffraction observations. At higher fluences the appearance of diamond particles of 2-7 nm size, embedded into the lower crystallized graphitic matrix, was observed and simultaneously a progressive growth of graphite nanocrystals with dimensions from 2 nm to 4 nm was deduced from Raman measurements. The maximum thickness of the crystallized surface layer (approximate to 400 nm) and the degree of laser annealing are limited by the film ablation which starts at E > 250 mJ/cm(2). The laser-treated areas lose their chemical inertness. In particular, chemical etching in chromium acid becomes possible, which may be used for patterning the highly inert carbon films.
Address
Corporate Author Thesis
Publisher Place of Publication Heidelberg Editor
Language Wos A1994MU87700005 Publication Date (up) 2004-10-24
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0721-7250;1432-0630; ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor Times cited 73 Open Access
Notes Approved no
Call Number UA @ lucian @ c:irua:99924 Serial 718
Permanent link to this record
 
 
Author Wilmotte, A.; Turner, S.; van de Peer, Y.; Pace, N.R.
Title Taxonomical study of marine oscillatorian strains (Cyanobacteria) with narrow trichomes: 2: nucleotide sequence analysis of the 16S ribosomal RNA Type A1 Journal article
Year 1992 Publication Journal Of Phycology Abbreviated Journal J Phycol
Volume 28 Issue Pages 828-838
Keywords A1 Journal article; Electron Microscopy for Materials Science (EMAT);
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Baltimore, Md Editor
Language Wos A1992KH06800016 Publication Date (up) 2004-10-26
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0022-3646;1529-8817; ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor 2.844 Times cited 58 Open Access
Notes Approved no
Call Number UA @ lucian @ c:irua:11368 Serial 3470
Permanent link to this record
 
 
Author Cabral, L.R.E.; Baelus, B.J.; Peeters, F.M.
Title From vortex molecules to the Abrikosov lattice in thin mesoscopic superconducting disks Type A1 Journal article
Year 2004 Publication Physical review : B : condensed matter and materials physics Abbreviated Journal Phys Rev B
Volume 70 Issue Pages 144523,1-16
Keywords A1 Journal article; Condensed Matter Theory (CMT)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Lancaster, Pa Editor
Language Wos 000224855600084 Publication Date (up) 2004-10-30
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1098-0121;1550-235X; ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor 3.836 Times cited 71 Open Access
Notes Approved Most recent IF: 3.836; 2004 IF: 3.075
Call Number UA @ lucian @ c:irua:69392 Serial 1291
Permanent link to this record
 
 
Author Vincze, L.; Vekemans, B.; Szaloki, I.; Brenker, F.E.; Falkenberg, G.; Rickers, K.; Aerts, K.; Van Grieken, R.; Adams, F.
Title X-ray fluorescence microtomography and polycapillary based confocal imaging using synchrotron radiation Type P1 Proceeding
Year 2004 Publication Abbreviated Journal
Volume Issue Pages 220-231 T2 - 4th Conference on Developments in X-R
Keywords P1 Proceeding; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
Abstract Ibis work illustrates the development of X-ray fluorescence tomography and polycapillary based confocal imaging towards a three-dimensional (313), quantitative analytical method with lateral resolution levels down to the 2-20 mum scale. Detailed analytical characterization is given for polycapillary based confocal XRF imaging, which is a new variant of the 3D micro-XRF technique. Applications for 2D/3D micro-XR-F are illustrated for the analysis of biological (zooplankton) and geological samples (microscopic inclusions in natural diamonds and fluid inclusions in quartz). Based on confocal imaging, fully three-dimensional distributions of trace elements could be obtained, representing a significant generalization of the regular 2D scanning technique for micro-XRF spectroscopy. The experimental work described in this paper has been carried out at the ESRF ID18F microfluorescence end-station and at HASYLAB Beam Line L.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos 000225665000023 Publication Date (up) 2004-11-02
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0-8194-5473-7 ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor Times cited Open Access
Notes Approved no
Call Number UA @ admin @ c:irua:94812 Serial 8767
Permanent link to this record
 
 
Author Tadić, M.; Peeters, F.M.
Title Binding of electrons, holes, and excitons in symmetric strained InP/ In0.49Ga0.51P triple quantum-dot molecules Type A1 Journal article
Year 2004 Publication Physical review : B : condensed matter and materials physics Abbreviated Journal Phys Rev B
Volume 70 Issue Pages 195302,1-11
Keywords A1 Journal article; Condensed Matter Theory (CMT)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Lancaster, Pa Editor
Language Wos 000225477800080 Publication Date (up) 2004-11-03
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1098-0121;1550-235X; ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor 3.836 Times cited 12 Open Access
Notes Approved Most recent IF: 3.836; 2004 IF: 3.075
Call Number UA @ lucian @ c:irua:69396 Serial 240
Permanent link to this record
 
 
Author Verbeeck, J.; van Dyck, D.; Lichte, H.; Potapov, P.; Schattschneider, P.
Title Plasmon holographic experiments: theoretical framework Type A1 Journal article
Year 2005 Publication Ultramicroscopy Abbreviated Journal Ultramicroscopy
Volume 102 Issue 3 Pages 239-255
Keywords A1 Journal article; Electron microscopy for materials research (EMAT); Vision lab
Abstract A theoretical framework is described to understand the results of plasmon holography experiments leading to insight in the meaning of the experimental results and pointing out directions for future experiments. The framework is based on the formalism of mutual intensity to describe how coherence is transferred through an optical system. For the inelastic interaction with the object, an expression for the volume. plasmon excitations in a free electron gas is used as a model for the behaviour of aluminium. The formalism leads to a clear graphical intuitive tool for under-standing the experiments. It becomes evident that the measured coherence is solely related to the angular distribution of the plasmon scattering in the case of bulk plasmons. After describing the framework, the special case of coherence outside a spherical particle is treated and the seemingly controversial idea of a plasmon with a limited coherence length obtained front experiments is clarified. (C) 2004 Elsevier B.V. All rights reserved.
Address
Corporate Author Thesis
Publisher Place of Publication Amsterdam Editor
Language Wos 000226436600010 Publication Date (up) 2004-11-05
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0304-3991; ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor 2.843 Times cited 43 Open Access
Notes Fwo Approved Most recent IF: 2.843; 2005 IF: 2.490
Call Number UA @ lucian @ c:irua:57133UA @ admin @ c:irua:57133 Serial 2643
Permanent link to this record
 
 
Author Vincze, L.; Kukhlevsky, S.V.; Janssens, K.
Title Simulation of poly-capillary lenses for coherent and partially coherent x-rays Type P1 Proceeding
Year 2004 Publication Proceedings of the Society of Photo-optical Instrumentation Engineers T2 – Conference on Advances in Computational Methods for X-Ray and Neutron, Optics, AUG 03-05, 2004, Denver, CO Abbreviated Journal
Volume Issue Pages 81-85
Keywords P1 Proceeding; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
Abstract The intensity distributions of the coherent and partially coherent x-rays passed through a poly-capillary lens have been computed at the focal plane. The computations showed that at the appropriate experimental conditions the interference phenomenon does affect the intensity distribution. In the case of the coherent input radiation with the photon energy of 0.1 keV, the interference fringes were observed, while the non-coherent x-ray radiation produced no interference-like intensity distributions.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos 000225564800008 Publication Date (up) 2004-11-05
Series Editor Series Title Abbreviated Series Title
Series Volume 5536 Series Issue Edition
ISSN 0-8194-5474-5 ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor Times cited 6 Open Access
Notes Approved Most recent IF: NA
Call Number UA @ admin @ c:irua:103753 Serial 5832
Permanent link to this record
 
 
Author Papp, G.; Peeters, F.M.
Title Giant magnetoresistance in a two-dimensional electron gas modulated by magnetic barriers Type A1 Journal article
Year 2004 Publication Journal of physics : condensed matter Abbreviated Journal J Phys-Condens Mat
Volume 16 Issue 46 Pages 8275-8283
Keywords A1 Journal article; Condensed Matter Theory (CMT)
Abstract The temperature-dependent giant magnetoresistance effect is investigated in a magnetically modulated two-dimensional electron gas, which can be realized by depositing two parallel ferromagnets on the top and bottom of a heterostructure. The effective potential for electrons arising for parallel magnetization allows the electrons to resonantly tunnel through the magnetic barriers, while this is excluded in the anti-parallel situation. Such a discrepancy results in a giant magnetoresistance ratio (MRR), which can be up to 10(31)%. The MRR shows a strong dependence on temperature, but our study indicates that for realistic parameters for a GaAs heterostructure the effect can be as high as 10(4)% at 4 K.
Address
Corporate Author Thesis
Publisher Place of Publication London Editor
Language Wos 000225706000017 Publication Date (up) 2004-11-06
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0953-8984;1361-648X; ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor 2.649 Times cited 69 Open Access
Notes Approved Most recent IF: 2.649; 2004 IF: 2.049
Call Number UA @ lucian @ c:irua:103718 Serial 1338
Permanent link to this record
 
 
Author van Daele, B.; Van Tendeloo, G.; Jacobs, K.; Moerman, I.; Leys, M.
Title Formation of metallic In in InGaN/GaN multiquantum wells Type A1 Journal article
Year 2004 Publication Applied physics letters Abbreviated Journal Appl Phys Lett
Volume 85 Issue 19 Pages 4379-4381
Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author Thesis
Publisher American Institute of Physics Place of Publication New York, N.Y. Editor
Language Wos 000224962800038 Publication Date (up) 2004-11-08
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0003-6951; ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor 3.411 Times cited 32 Open Access
Notes IAP V-1; IWT-Project No.980319 Approved Most recent IF: 3.411; 2004 IF: 4.308
Call Number UA @ lucian @ c:irua:54804 Serial 1261
Permanent link to this record
 
 
Author Nikolaev, A.V.; Michel, K.H.
Title Ab initio approach to superexchange interactions in alkali doped fullerides AC60 Type P1 Proceeding
Year 2004 Publication AIP conference proceedings T2 – 18th International Winterschool/Euroconference on Electronic Properties, of Novel Materials, MAR 06-JUN 13, 2004, Kirchberg, AUSTRIA Abbreviated Journal
Volume Issue Pages 393-396
Keywords P1 Proceeding; Condensed Matter Theory (CMT)
Abstract The superexchange interactions between the fullerenes arise as a result of the electron transfer from the C-60 molecule to the alkali atom and back. We present a scheme, which is a configuration interaction approach based on the valence bond (Heitler-London) method. The effect of superexchange is described together with chemical bonding by constructing and solving a secular equation, rather than by using a perturbation treatment. We have considered 180degrees and 90degrees superexchange for the C-60 Cs-C-60 pathways. The calculations account for unusual electronic properties of polymer orthorhombic and quenched cubic phases of CsC60: two lines in nuclear magnetic resonance experiments, the development of a spin-singlet ground state and a decrease of magnetic susceptibility as T-->0.
Address
Corporate Author Thesis
Publisher Place of Publication New York Editor
Language Wos 000224699400085 Publication Date (up) 2004-11-11
Series Editor Series Title Abbreviated Series Title
Series Volume 723 Series Issue Edition
ISSN 0-7354-0204-3 ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor Times cited Open Access
Notes Approved Most recent IF: NA
Call Number UA @ lucian @ c:irua:103752 Serial 27
Permanent link to this record
 
 
Author Szafran, B.; Peeters, F.M.; Bednarek, S.
Title Exchange energy tuned by asymmetry in artificial molecules Type A1 Journal article
Year 2004 Publication Physical review : B : condensed matter and materials physics Abbreviated Journal Phys Rev B
Volume 70 Issue Pages 205318,1-5
Keywords A1 Journal article; Condensed Matter Theory (CMT)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Lancaster, Pa Editor
Language Wos 000225478600083 Publication Date (up) 2004-11-11
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1098-0121;1550-235X; ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor 3.836 Times cited 37 Open Access
Notes Approved Most recent IF: 3.836; 2004 IF: 3.075
Call Number UA @ lucian @ c:irua:69398 Serial 1107
Permanent link to this record
 
 
Author Van Grieken, R.E.; Johansson, T.B.; Winchester, J.W.; Odom, L.
Title Micro-determination of zirconium-hafnium ratios in zircons by proton induced X-ray emission Type A3 Journal article
Year 1975 Publication Fresenius' Zeitschrift für analytische Chemie Abbreviated Journal
Volume 275 Issue 5 Pages 343-348
Keywords A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
Abstract The zirconium/hafnium ratios of zircons are determined using proton induced X-ray emission. Submilligram samples, imbedded in a starch layer and deposited on a 50 μg/cm2 polystyrene carrier, are irradiated for 1020 min with a 5 nA beam of 3.7 MeV protons, while the Hf-Lβ and Zr-Kα X-rays are counted with a Si(Li) detector. The standard deviation per analysis is in the 36 % range. Only few interferences are possible. To eliminate errors due to absorption effects the zircon layer thickness should be above 40 μm or reproducibly thin samples should be employed. Measuring the Hf-Lβ/Hf-Lα ratio for samples and standards might provide a practical check for the absence of absorption errors. The sensitivity is so favourable that, in practice, the minimal sample size is only limited by the minimal amount that can be handled properly.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos Publication Date (up) 2004-11-11
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0016-1152 ISBN Additional Links UA library record
Impact Factor Times cited Open Access
Notes Approved no
Call Number UA @ admin @ c:irua:116636 Serial 8231
Permanent link to this record
 
 
Author Potgieter-Vermaak, S.S.; Godoi, R.H.M.; Van Grieken, R.; Potgieter, J.H.; Oujja, M.; Castillejo, M.
Title Micro-structural characterization of black crust and laser cleaning of building stones by micro-Raman and SEM techniques Type A1 Journal article
Year 2005 Publication Spectrochimica acta: part A: molecular and biomolecular spectroscopy Abbreviated Journal
Volume 61 Issue 11/12 Pages 2460-2467
Keywords A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos 000231340200005 Publication Date (up) 2004-11-11
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1386-1425 ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor Times cited Open Access
Notes Approved no
Call Number UA @ admin @ c:irua:53444 Serial 8234
Permanent link to this record
 
 
Author Stefanovich, S.Y.; Belik, A.A.; Azuma, M.; Takano, M.; Baryshnikova, O.V.; Morozov, V.A.; Lazoryak, B.I.; Lebedev, O.I.; Van Tendeloo, G.
Title Antiferroelectric phase transition in Sr9In(PO4)7 Type A1 Journal article
Year 2004 Publication Physical review : B : condensed matter and materials physics Abbreviated Journal Phys Rev B
Volume 70 Issue Pages 172103,1-4
Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Lancaster, Pa Editor
Language Wos 000225477000003 Publication Date (up) 2004-11-12
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1098-0121;1550-235X; ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor 3.836 Times cited 17 Open Access
Notes Iuap P5/01 Approved Most recent IF: 3.836; 2004 IF: 3.075
Call Number UA @ lucian @ c:irua:54744 Serial 135
Permanent link to this record
 
 
Author Mattauch, S.; Heger, G.; Michel, K.H.
Title High resolution neutron and X-ray diffraction studies as a function of temperature and electric field of the ferroelectric phase transition of RDP Type A1 Journal article
Year 2004 Publication Crystal research and technology Abbreviated Journal Cryst Res Technol
Volume 39 Issue 12 Pages 1027-1054
Keywords A1 Journal article; Condensed Matter Theory (CMT)
Abstract Neutron and high resolution X-ray diffraction investigations on perfect single crystals of RbH2PO4 (RDP), a hydrogen bonded ferroelectric of KDP type are reported. The results of crystal structure analysis from diffraction data, below and above the paraelectric – ferroelectric phase transition, support a disorder – order character Of [PO4H2](-)-groups. The tetragonal symmetry of the paraelectric phase with the double well potential of the hydrogen atoms obtained by diffraction, results simply from a time-space average of orthorhombic symmetry. According to the group – subgroup relation between the tetragonal space group 142d and the orthorhombic Fdd2 a short range order of ferroelectric clusters in the tetragonal phase is observed. With decreasing temperature the ferroelectric clusters increase and the long range interaction between their local polarisation vectors leads to the formation of lamellar ferroelectric domains with alternating polarisation directions at T-C = 147 K. From the high resolution X-ray data it is concluded that below T-C the ferroelastic strain in the (a,b)-plane leads to micro-angle grain boundaries at the domain walls. The tilt angle is enhanced by an applied electric field parallel to the ferroelectric axis. The resulting dislocations at the domain walls persist in the paraelectric phase leading to a memory effect for the arrangement of twin lamellae. With increased electric field the phase transition temperature T-C is decreased.
Address
Corporate Author Thesis
Publisher Place of Publication Berlin Editor
Language Wos 000225681100001 Publication Date (up) 2004-11-12
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0232-1300;1521-4079; ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor 1 Times cited 12 Open Access
Notes Approved Most recent IF: 1; 2004 IF: 0.770
Call Number UA @ lucian @ c:irua:94785 Serial 1459
Permanent link to this record
 
 
Author Adriaensen, L.; Vangaever, F.; Gijbels, R.
Title Metal-assisted secondary ion mass spectrometry: the influence of Ag and Au deposition on molecular ion yields Type A1 Journal article
Year 2004 Publication Analytical chemistry Abbreviated Journal Anal Chem
Volume 76 Issue 22 Pages 6777-6785
Keywords A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Washington, D.C. Editor
Language Wos 000225076400033 Publication Date (up) 2004-11-12
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0003-2700;1520-6882; ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor 6.32 Times cited 67 Open Access
Notes Approved Most recent IF: 6.32; 2004 IF: 5.450
Call Number UA @ lucian @ c:irua:51980 Serial 2006
Permanent link to this record
 
 
Author Kolev, I.; Bogaerts, A.
Title Numerical models of the planar magnetron glow discharges Type A1 Journal article
Year 2004 Publication Contributions to plasma physics Abbreviated Journal Contrib Plasm Phys
Volume 44 Issue 7/8 Pages 582-588
Keywords A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Berlin Editor
Language Wos 000225541000003 Publication Date (up) 2004-11-12
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0863-1042;1521-3986; ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor 1.44 Times cited 22 Open Access
Notes Approved Most recent IF: 1.44; 2004 IF: 0.701
Call Number UA @ lucian @ c:irua:49069 Serial 2402
Permanent link to this record
 
 
Author Vincze, L.; Vekemans, B.; Brenker, F.E.; Falkenberg, G.; Rickers, K.; Somogyi, A.; Kersten, M.; Adams, F.
Title Three-dimensional trace element analysis by confocal X-ray microfluorescence imaging Type A1 Journal article
Year 2004 Publication Analytical chemistry Abbreviated Journal
Volume 76 Issue 22 Pages 6786-6791
Keywords A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos 000225076400034 Publication Date (up) 2004-11-12
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0003-2700; 5206-882x ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor Times cited Open Access
Notes Approved no
Call Number UA @ admin @ c:irua:49817 Serial 8669
Permanent link to this record
 
 
Author Vanderstappen, M.; Van Grieken, R.
Title Trace metal analysis of sediments and particulate matter in sea water by energy-dispersive X-ray fluorescence Type A3 Journal article
Year 1976 Publication Fresenius' Zeitschrift für analytische Chemie Abbreviated Journal
Volume 282 Issue 1 Pages 25-30
Keywords A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
Abstract The capability of energy-dispersive X-ray fluorescence was investigated for fast and simple chemical analysis of trace elements in sediments and particulate matter in sea water. Nuclepore 0.4 μm pore-size membranes are recommended as optimal filters for a straightforward collection of suspended material. The collection of suspended trace metals by filtration seemed to give a sufficiently homogeneous filter load (s% <2.5). Data are presented on the concentrations of K, Ca, Ti, Cr, Mn, Fe, Ni, Cu, Zn, Br, Pb, Rb and Sr with a fair precision (s% < 5.6) and accuracy.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos Publication Date (up) 2004-11-12
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0016-1152 ISBN Additional Links UA library record
Impact Factor Times cited Open Access
Notes Approved no
Call Number UA @ admin @ c:irua:116637 Serial 8691
Permanent link to this record
 
 
Author Tadić, M.; Peeters, F.M.
Title Exciton states and oscillator strength in two vertically coupled InP/InGaP quantum discs Type A1 Journal article
Year 2004 Publication Journal of physics : condensed matter Abbreviated Journal J Phys-Condens Mat
Volume 16 Issue 47 Pages 8633-8652
Keywords A1 Journal article; Condensed Matter Theory (CMT)
Abstract Quantum mechanical coupling and strain in two vertically arranged InP/InGaP quantum dots is studied as a function of the size of the dots and the spacer thickness. The strain distribution is determined by the continuum mechanical model, while the single-band effective-mass equation and the multiband k (.) p theory are employed to compute the conduction and valence band energy levels, respectively. The exciton states are obtained from an exact diagonalization approach, and we also compute the oscillator strength for recombination. We found that the light holes are confined by strain to the spacer, which is the reason that the hole states exhibit coupling at much larger distances as compared with the electrons. At small d, the doublet structure of the hole energy levels arises as a consequence of the relocation of the light hole from the matrix to the regions located-outside the stack, close to the dot-matrix interface. When d varies, the exciton ground state exhibits numerous anticrossings with other states, which are related to the changing spatial localization of the hole as a function of d. The oscillator strength of the exciton recombination is strongly reduced in a certain range of spacer thicknesses, which effectively turns a bright exciton state into a dark one. This effect is associated with anticrossings between exciton energy levels.
Address
Corporate Author Thesis
Publisher Place of Publication London Editor
Language Wos 000225796800016 Publication Date (up) 2004-11-13
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0953-8984;1361-648X; ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor 2.649 Times cited 13 Open Access
Notes Approved Most recent IF: 2.649; 2004 IF: 2.049
Call Number UA @ lucian @ c:irua:99315 Serial 1116
Permanent link to this record
 
 
Author Vos, L.; Van Grieken, R.
Title Matrix effects and analysis of biological material by spark source mass spectrometry Type A3 Journal article
Year 1985 Publication Fresenius' Zeitschrift für analytische Chemie Abbreviated Journal
Volume 321 Issue 1 Pages 32-36
Keywords A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
Abstract Spark-source mass spectrometric analyses of synthetic simulated biological samples were performed to determine the importance of matrix effects. A correlation between the variation of the relative sensitivity coefficients (RSC's) and the spark plasma composition, hence plasma temperature, was found. The determined RSC's were used in the analysis of four biological standard reference materials. An accuracy of 1013% and detection limits between 0.005 and 0.5 ppm were obtained during analysis under normal conditions.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos Publication Date (up) 2004-11-14
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0016-1152 ISBN Additional Links UA library record
Impact Factor Times cited Open Access
Notes Approved no
Call Number UA @ admin @ c:irua:116641 Serial 8209
Permanent link to this record
 
 
Author Vandelannoote, R.; Blommaert, W.; Gijbels, R.; van Grieken, R.
Title Analysis of geothermal waters by spark source mass spectrometry Type A3 Journal article
Year 1981 Publication Fresenius' Zeitschrift für analytische Chemie Abbreviated Journal
Volume 309 Issue 4 Pages 291-294
Keywords A3 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT); AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
Abstract Although the analysis of thermal water by spark-source mass spectrometry (SSMS) is rather timeconsuming, it allows the detection of about 20 elements of geochemical interest down to the ppb-level. A physical preconcentration is proposed in order to collect elements having quite different chemical properties, e.g. alkalis, transition elements, and elements occurring in anionic form. The relative sensitivity factors appear to be rather independent of the salt content of the graphite electrodes. Contrary to neutron activation analysis, SSMS has a quite uniform elemental sensitivity, and allows to determine elements for which neutron activation is not suitable, e.g. Sn and Pb. The precision of SSMS is however by a factor of about 2 worse than that obtained for neutron activation.
Address
Corporate Author Thesis
Publisher Place of Publication München Editor
Language Wos Publication Date (up) 2004-11-15
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0016-1152;1618-2650; ISBN Additional Links UA library record
Impact Factor Times cited 8 Open Access
Notes Approved no
Call Number UA @ lucian @ c:irua:116638 Serial 100
Permanent link to this record
 
 
Author Rojas, C.M.; Van Grieken, R.; Maenhaut, W.
Title Elemental composition of aircraft-sampled aerosols above the Southern Bight of the North Sea Type A1 Journal article
Year 1993 Publication Water, air and soil pollution Abbreviated Journal
Volume 71 Issue Pages 391-404
Keywords A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos A1993MT74000011 Publication Date (up) 2004-11-15
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0049-6979; 1573-2932 ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor Times cited Open Access
Notes Approved no
Call Number UA @ admin @ c:irua:6263 Serial 7888
Permanent link to this record