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“Non-linear mapping of microbeam proton-induced X-ray emission data for source identification of North Sea aerosols”. Treiger B, Injuk J, Bondarenko I, van Espen P, Van Grieken R, Breitenbach L, Wätjen U, Spectrochimica acta: part B : atomic spectroscopy 49, 345 (1994). http://doi.org/10.1016/0584-8547(94)80029-4
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Chemometrics (Mitac 3)
DOI: 10.1016/0584-8547(94)80029-4
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“Optimization of sample preparation for grazing emission X-ray fluorescence in micro- and trace analysis applications”. Claes M, de Bokx P, Willard N, Veny P, Van Grieken R, Spectrochimica acta: part B : atomic spectroscopy 52, 1063 (1997). http://doi.org/10.1016/S0584-8547(96)01654-0
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1016/S0584-8547(96)01654-0
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“Performance and characteristics of two total-reflection X-ray fluorescence and a particle induced X-ray emission setup for aerosol analysis”. Injuk J, Van Grieken R, Klockenkämper R, von Bohlen A, Kump P, Spectrochimica acta: part B : atomic spectroscopy 52, 977 (1997). http://doi.org/10.1016/S0584-8547(97)00028-1
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1016/S0584-8547(97)00028-1
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“Quantification in grazing-emission X-ray fluorescence spectrometry”. Spolnik ZM, Claes M, Van Grieken RE, de Bokx PK, Urbach HP, Spectrochimica acta: part B : atomic spectroscopy 54, 1525 (1999). http://doi.org/10.1016/S0584-8547(99)00051-8
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1016/S0584-8547(99)00051-8
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“Quantitative characterization of individual aerosol particles by thin-window electron probe microanalysis combined with iterative simulation”. Szalóki I, Osán J, Ro C-U, Van Grieken R, Spectrochimica acta: part B : atomic spectroscopy 55, 1017 (2000). http://doi.org/10.1016/S0584-8547(00)00174-9
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1016/S0584-8547(00)00174-9
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“Study of a unique 16th century Antwerp majolica floor in the Rameyenhof castle's chapel by means of X-ray fluorescence and portable Raman analytical instrumentation”. Van de Voorde L, Vandevijvere M, Vekemans B, Van Pevenage J, Caen J, Vandenabeele P, van Espen P, Vincze L, Spectrochimica acta: part B : atomic spectroscopy 102, 28 (2014). http://doi.org/10.1016/J.SAB.2014.10.007
Abstract: The most unique and only known 16th century Antwerp majolica tile floor in Belgium is situated in a tower of the Rameyenhof castle (Gestel, Belgium). This exceptional work of art has recently been investigated in situ by using X-ray fluorescence (XRF) and Raman spectroscopy in order to study the material characteristics. This study reports on the result of the analyses based on the novel combination of non-destructive and portable instrumentation, including a handheld XRF spectrometer for obtaining elemental information and a mobile Raman spectrometer for retrieving structural and molecular information on the floor tiles in the Rameyenhof castle and on a second, similar medallion, which is stored in the Rubens House museum in Antwerp (Belgium). The investigated material, majolica, is a type of ceramic, which fascinated many people and potters throughout history by its beauty and colourful appearance. In this study the characteristic major/minor and trace element signature of 16th century Antwerp majolica is determined and the pigments used for the colourful paintings present on the floor are identified. Furthermore, based on the elemental fingerprint of the white glaze, and in particular on the presence of zinc in the tiles – an element that was not used for making 16th century majolica – valuable information about the originality of the chapel floor and the two central medallions is acquired. (C) 2014 Elsevier B.V. All rights reserved.
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Antwerp Cultural Heritage Sciences (ARCHES)
DOI: 10.1016/J.SAB.2014.10.007
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“Substrate selection for optimum qualitative and quantitative single atmospheric particles analysis using nano-manipulation, sequential thin-window electron probe X-ray microanalysis and micro-Raman spectrometry”. Godoi RHM, Potgieter-Vermaak S, de Hoog J, Kaegi R, Van Grieken R, Spectrochimica acta: part B : atomic spectroscopy 61, 375 (2006). http://doi.org/10.1016/J.SAB.2006.02.004
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1016/J.SAB.2006.02.004
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“Substrates with a periodic surface structure in grazing-exit X-ray microanalysis”. Bekshaev A, Van Grieken R, Spectrochimica acta: part B : atomic spectroscopy 57, 865 (2002). http://doi.org/10.1016/S0584-8547(02)00019-8
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1016/S0584-8547(02)00019-8
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“Thermal stability of beam sensitive atmospheric aerosol particles in electron probe microanalysis at liquid nitrogen temperature”. Worobiec A, de Hoog J, Osán J, Szalóki I, Ro C-U, Van Grieken R, Spectrochimica acta: part B : atomic spectroscopy 58, 479 (2003). http://doi.org/10.1016/S0584-8547(03)00013-2
Keywords: A1 Journal article; Laboratory Experimental Medicine and Pediatrics (LEMP); AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1016/S0584-8547(03)00013-2
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“X-ray analysis of riverbank sediment of the Tisza (Hungary): identification of particles from a mine pollution event”. Osán J, Kurunczi S, Török S, Van Grieken R, Spectrochimica acta: part B : atomic spectroscopy 57, 413 (2002). http://doi.org/10.1016/S0584-8547(01)00405-0
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1016/S0584-8547(01)00405-0
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“Classical nature of quantum dots in a magnetic field”. Anisimovas E, Matulis A, Peeters FM, Acta physica Polonica: A: general physics, solid state physics, applied physics 107, 188 (2005)
Abstract: A quasiclassical theory of few-electron quantum dots in a strong magnetic field is developed. The ground state energy and the corresponding many-electron wave function are obtained and used to derive a universal relation of critical magnetic fields and calculate the currents and the density-current correlation function.
Keywords: A1 Journal article; Condensed Matter Theory (CMT)
Impact Factor: 0.469
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“Electron microscopy and X-ray structural investigations of incommensurate spin-ladder Sr4.1Ca4.7Bi0.3Cu17O29 single crystals”. Dluzewski P, Pietraszko A, Kozlowski M, Szczepanska A, Gorecka J, Baran M, Leonyuk L, Babonas GJ, Lebedev OI, Szymczak R, Acta physica Polonica: A: general physics, solid state physics, applied physics 98, 729 (2000)
Abstract: Transmission electron microscopy and X-ray diffraction proved chain/ladder incommensurate single crystal structure of investigated samples. The incommensurate ratio was determined from the X-ray and electron diffraction being equal to 0.704. Diffuse scattering intensities localised on the planes perpendicular to the c*-axis and passing through the spots originating from the periodicity of chain sublattice were detected. High-angle grain boundary or twinning formed by rotation of 33.3 degrees around [100] direction was observed. High-resolution electron microscopy images revealed the stacking faults in ac planes.
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
Impact Factor: 0.469
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“Free-standing Si and Ge, and Ge/Si core-shell semiconductor nanowires”. Peelaers H, Partoens B, Peeters FM, Acta physica Polonica: A: general physics, solid state physics, applied physics
T2 –, WELCOME Scientific Meeting on Hybrid Nanostructures, AUG 28-31, 2011, Torun, POLAND 122, 294 (2012)
Abstract: The properties of free-standing silicon and germanium nanowires oriented along the [110] direction are studied using different first principles methods. We show the corrections due to quasi-particles to the band structures obtained using the local-density approximation. The formation energies of B and P doped nanowires are calculated, both in the absence and presence of dangling bond defects and we link these to experimental results. Furthermore, we report on the phonon properties of pure Si and Ge nanowires, as well as Ge/Si core-shell nanowires, and discuss the differences between them.
Keywords: A1 Journal article; Condensed Matter Theory (CMT)
Impact Factor: 0.469
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“Interband optical properties of concentric type-I nanorings in a normal magnetic field”. Arsoski V, Tadić, M, Peeters FM, Acta physica Polonica: A: general physics, solid state physics, applied physics 117, 733 (2010)
Abstract: Two concentric two-dimensional GaAs/(Al,Ga)As nanorings in a normal magnetic field are theoretically studied. The single-band effective mass approximation is adopted for both the electron and the hole states, and the analytical solutions are given. We find that the electronic single particle states are arranged in pairs, which exhibit anticrossings and the orbital momentum transitions in the energy spectrum when magnetic field increases. Their period is essentially determined by the radius of the outer ring. The oscillator strength for interband transitions is strongly reduced close to each anticrossing. We show that an optical excitonic Aharonov-Bohm effect may occur in concentric nanorings.
Keywords: A1 Journal article; Condensed Matter Theory (CMT)
Impact Factor: 0.469
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“The optical excitonic Aharonov-Bohm effect in a few nanometer wide type-I nanorings”. Tadić, M, Arsoski V, Čukarić, N, Peeters FM, Acta physica Polonica: A: general physics, solid state physics, applied physics 117, 974 (2010)
Abstract: The optical excitonic Aharonov-Bohm effect in type-1 three-dimensional (In, Ga)As/GaAs nanorings in theoretically explored. The single-particle states of the electron and the hole are extracted from the effective mass theory in the presence of inhomogeneous strain, and an exact numerical diagonalization approach is used to compute the exciton states and the oscillator strength fx for exciton recombination. We studied both the large lithographically-defined and small self-assembled rings. Only in smaller self-assembled nanorings we found optical excitonic AharonovBohm effect. Those oscillations are established by anticrossings between the optically active exciton states with zero orbital momentum. In lithographically defined rings, whose average radius is 33 nm, fx shows no oscillations, whereas in the smaller self-assembled nanoring with average radius of 11.5 nm oscillations in fx for the ground exciton state are found as function of the magnetic field that is superposed on a linear dependence. These oscillations are smeared out at finite temperature, thus photoluminescence intensity exhibits step-like variation with magnetic field even at temperature as small as 4.2 K.
Keywords: A1 Journal article; Condensed Matter Theory (CMT)
Impact Factor: 0.469
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“Magnetoexcitons in semiconductor quantum rings with complicated (Kane's) dispersion law”. Avetisyan AA, Ghazaryan AV, Djotyan AP, Kirakosyan AA, Moulopoulos K, Acta physica Polonica: A: general physics, solid state physics, applied physics
T2 –, 4th Workshop on Quantum Chaos and Localisation Phenomena, MAY 22-24, 2009, Polish Acad Sci, Ctr Theoret Phys, Inst Phys, Polish Acad Sci, Ctr Theoret Phys, Inst Phys, War 116, 826 (2009). http://doi.org/10.12693/APHYSPOLA.116.826
Abstract: The influence of the nonparabolicity of charge carriers dispersion law (Kane's dispersion) on a magnetoexciton energy spectrum in InSb quantum rings is theoretically investigated The analytical expression for the energy spectrum of exciton in a narrow-gap semiconductor nanoring in a magnetic field is obtained. The Aharonov – Bohm oscillations in the energy of excited states are studied.
Keywords: A1 Journal article; Condensed Matter Theory (CMT)
DOI: 10.12693/APHYSPOLA.116.826
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“Applications of laser microprobe mass analysis in medicine”. Verbueken AH, van de Vijver FL, de Broe ME, Van Grieken RE, CRC critical reviews in clinical laboratory sciences 24, 263 (1987)
Keywords: A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Laboratory Experimental Medicine and Pediatrics (LEMP)
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“Infrared investigation of hard human teeth tissues exposed to various doses of ionizing radiation from the 1986 Chernobyl accident”. Darchuk LA, Zaverbna LV, Bebeshko VG, Worobiec A, Stefaniak EA, Van Grieken R, Spectroscopy 22, 105 (2008). http://doi.org/10.1155/2008/843612
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Laboratory Experimental Medicine and Pediatrics (LEMP)
DOI: 10.1155/2008/843612
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“Spectroscopy and ion chromatography to study the effects of air pollution on historical buildings”. Van Grieken R, Roekens E, Sweevers H, Vleugels G, Spectroscopy 10, 70 (1989)
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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“Direct observation of laser-induced crystallization of a-C : H films”. Nistor LC, van Landuyt J, Ralchenko VG, Kononenko TV, Obraztsova ED, Strelnitsky VE, Applied physics A : materials science &, processing 58, 137 (1994). http://doi.org/10.1007/BF00332170
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.
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
Times cited: 73
DOI: 10.1007/BF00332170
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“Strong-coupling limit for one-dimensional polarons in a finite box”. Vansant P, Smondyrev MA, Peeters FM, Devreese JT, Zeitschrift für Physik: B: condensed matter and quanta 99, 345 (1996). http://doi.org/10.1007/s002570050047
Keywords: A1 Journal article; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
Times cited: 1
DOI: 10.1007/s002570050047
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“Crystal field and molecular structure of solid C60”. Lamoen D, Michel KH, Zeitschrift für Physik : B : condensed matter 92, 323 (1993). http://doi.org/10.1007/BF01308749
Abstract: The crystal field in the orientationally disordered phase of C90-fullerite is derived from an intermolecular potential model, which takes into account the geometric difference between double bonds and single bonds. The molecules are modelled as rigid bodies, atoms and single bonds are treated as single interaction centers, while double bonds are described by a distribution of interaction centers along the bond. The crystal field is expanded in terms of cubic rotator functions. The calculated expansion coefficients are compared with empirical values derived from diffraction data. The angular dependence of the crystal field, resulting from an anticlockwise rotation of the molecule around the [111] axis, exhibits an absolute and a secondary minimum at angles of 98-degrees and 38-degrees respectively. The self interaction of the molecule in a deformable lattice is investigated.
Keywords: A1 Journal article; Condensed Matter Theory (CMT)
Times cited: 25
DOI: 10.1007/BF01308749
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“Free energy and orientational phase transition in solid C60”. Michel KH, Zeitschrift für Physik: B 88, 71 (1992). http://doi.org/10.1007/BF01573839
Keywords: A1 Journal article; Condensed Matter Theory (CMT)
Times cited: 33
DOI: 10.1007/BF01573839
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“Free energy and structural phase transitions in mixed crystals: a microscopic derivation”. Theuns T, Michel KH, Zeitschrift für Physik: B 86, 125 (1992). http://doi.org/10.1007/BF01323556
Keywords: A1 Journal article; Condensed Matter Theory (CMT)
Times cited: 1
DOI: 10.1007/BF01323556
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“Urine nitrification with a synthetic microbial community”. Christiaens MER, De Paepe J, Ilgrande C, De Vrieze J, Barys J, Teirlinck P, Meerbergen K, Lievens B, Boon N, Clauwaert P, Vlaeminck SE, Systematic and applied microbiology 42, Unsp 126021 (2019). http://doi.org/10.1016/J.SYAPM.2019.126021
Abstract: During long-term extra-terrestrial missions, food is limited and waste is generated. By recycling valuable nutrients from this waste via regenerative life support systems, food can be produced in space. Astronauts' urine can, for instance, be nitrified by micro-organisms into a liquid nitrate fertilizer for plant growth in space. Due to stringent conditions in space, microbial communities need to be be defined (gnotobiotic); therefore, synthetic rather than mixed microbial communities are preferred. For urine nitrification, synthetic communities face challenges, such as from salinity, ureolysis, and organics. In this study, a synthetic microbial community containing an AOB (Nitrosomonas europaea), NOB (Nitrobacter winogradskyi), and three ureolytic heterotrophs (Pseudomonas fluorescens, Acidovorax delafieldii, and Delftia acidovorans) was compiled and evaluated for these challenges. In reactor 1, salt adaptation of the ammonium-fed AOB and NOB co-culture was possible up to 45 mS cm(-1), which resembled undiluted nitrified urine, while maintaining a 44 +/- 10 mg NH4+-N L-1 d(-1) removal rate. In reactor 2, the nitrifiers and ureolytic heterotrophs were fed with urine and achieved a 15 +/- 6 mg NO3--N L-1 d(-1) production rate for 1% and 10% synthetic and fresh real urine, respectively. Batch activity tests with this community using fresh real urine even reached 29 +/- 3 mg N L-1 d(-1). Organics removal in the reactor (69 +/- 15%) should be optimized to generate a nitrate fertilizer for future space applications. (C) 2019 Elsevier GmbH. All rights reserved.
Keywords: A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL)
DOI: 10.1016/J.SYAPM.2019.126021
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“Mutational Analysis on Membrane Associated Transporter Protein (MATP) and Their Structural Consequences in Oculocutaeous Albinism Type 4 (OCA4)A Molecular Dynamics Approach”. Kamaraj B, Purohit R, Journal of cellular biochemistry 117, 2608 (2016). http://doi.org/10.1002/JCB.25555
Keywords: A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Impact Factor: 3.085
Times cited: 28
DOI: 10.1002/JCB.25555
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“Special issue on Microscopic and ultratrace x-ray fluorescence analysis: 2”. Janssens K, Journal of trace and microprobe techniques 14, 461 (1996)
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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“Electron microprobe observations of recrystallization affecting PIXE-analysis of marine aerosol deposits”. Storms H, Van Dyck P, Van Grieken R, Maenhaut W, Journal of trace and microprobe techniques 2, 103 (1985)
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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“Multidisciplinary environmental monitoring at the Kunsthistorisches Museum, Vienna”. Sturaro G, Camuffo D, Brimblecombe P, Van Grieken R, Busse H-J, Bernardi A, Valentino A, Blades N, Gysels K, Deutsch F, Wieser M, Buczolits S, Journal of trace and microprobe techniques 21, 273 (2003). http://doi.org/10.1081/TMA-120020262
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1081/TMA-120020262
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“FLCS-PON : a 100 Gbit/s flexible passive optical network: concepts and field trial”. Borkowski R, Straub M, Ou Y, Lefevre Y, Jelić, ŽL, Lanneer W, Kaneda N, Mahadevan A, Hueckstaedt V, van Veen D, Houtsma V, Coomans W, Bonk R, Maes J, Journal Of Lightwave Technology 39, 5314 (2021). http://doi.org/10.1109/JLT.2021.3102383
Abstract: We demonstrate concepts and results of a field trial for a flexible-rate passive optical network (FLCS-PON), which delivers bitrates up to 100 Gbit/s and allows for adaptations in the transmission method to match the users' channel conditions and optimize throughput. FLCS-PON builds on top of the hardware ecosystem that will be developed for ITU-T 50 Gbit/s PON and employs three new ingredients: optical network unit (ONU) grouping, flexible modulation format, and flexible forward error correction (FEC) code rate. Together, these techniques take advantage of the optical distribution network (ODN) statistics to realize a system capable of more than twofold throughput increase compared to the upcoming 50 Gbit/s PON, but still able to support a full array of deployed fiber edge cases, which are problematic for legacy PONs. In this paper we explain the concepts behind enabling techniques of FLCS-PON. We then report on a field trial over a deployed fiber infrastructure, using a system consisting of one FLCS-PON OLT and two ONUs. We report both pre- and post-forward-error-correction (post-FEC) performance of our system, demonstrating achievable net bitrate over an operator's fiber infrastructure. We realize a downlink transmission at double the speed of ITU-T 50 Gbit/s PON for ONUs exhibiting lower optical path loss (OPL), while simultaneously continue to support ONUs at high OPLs. We additionally realize a record-high 31.5 dB loss budget for 100 Gbit/s transmission using a direct-detection ONU with an optical preamplifier.
Keywords: A1 Journal article; Mass communications; Condensed Matter Theory (CMT)
Impact Factor: 3.671
DOI: 10.1109/JLT.2021.3102383
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