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Author |
Blust, R.J.P.; Dardenne, F.; De Wael, K.; Nagels, L.; Van Camp, G. |
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Title |
Electrochemical aptasensors with a gelatin B matrix : EP13175128 |
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Patent |
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Year |
2013 |
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Patent; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
An aptamer-based electrochemical sensor, wherein said aptamer is covalently bonded to or chemisorbed on an electrode, said aptamer forming a robust complex with a target molecule and is encapsulated by a gelatin B matrix; a method of manufacturing an aptamer-based electrochemical sensor for determining a concentration of a target molecule comprising the steps of: selecting an aptamer to form a robust complex with a target molecule using the SELEX procedure; synthesizing said aptamer; adsorbing said aptamer on or covalently coupling said aptamer with an electrode; and providing a gelatin B matrix for said aptamer on said electrode thereby realising said aptamer-based potentiometric or amperometric sensor; and the use of the aptamer-based electrochemical sensor produced according to the above method for the electrochemical determination of a concentration of 15 the target molecule. |
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UA @ admin @ c:irua:109364 |
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5587 |
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Author |
Margui, E.; Van Grieken, R. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
State-of-the-art X-ray fluorescence instrumentation for chemical analysis |
Type |
A3 Journal article |
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Year |
2013 |
Publication |
Petro Industry News |
Abbreviated Journal |
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June/July |
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16-18 |
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A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
Nowadays, X-ray fluorescence spectrometry (XRF) is a well-established analytical technique for qualitative and quantitative elemental analysis (sometimes from Be to U) of a wide variety of samples. In particular, the truly multi-element character, acceptable speed and economy, ease of automation and the possibility to directly analyse solid samples are the most important features among the many that have made it a very mature analytical tool for routine quality controls in many industries, as well as for analytical support for the research laboratory.e recent technological advances, including the design of low-power micro-focus tubes and the novel X-ray optics and detectors have made it possible to extend XRF to the determination of low-Z elements and to obtain 2D or 3D information on a micrometre-scale. Furthermore, the recent development and commercialisation of benchtop and portable instrumentation, that offer extreme simplicity of operation in a low-cost design, have promoted even more the approach of XRF for many analytical problems.is article highlights this state-of-the art technique with regards to currently available XRF instrumentation on the market as well as recent applications in environmental and industrial fields. |
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1472-0590 |
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Call Number ![sorted by Call Number field, descending order (down)](img/sort_desc.gif) |
UA @ admin @ c:irua:109342 |
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8581 |
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Potgieter-Vermaak, S.; Van Grieken, R.; Potgieter, J.H. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Integrated analytical techniques for analysing individual environmental particles |
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H2 Book chapter |
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Year |
2012 |
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123-141
T2 - Spectroscopic properties of inorganic |
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H2 Book chapter; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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978-1-84973-395-3 |
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Call Number ![sorted by Call Number field, descending order (down)](img/sort_desc.gif) |
UA @ admin @ c:irua:109314 |
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8108 |
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Author |
Alföldy, B.; Lööv, J.B.; Lagler, F.; Bencs, L.; Horemans, B.; Van Grieken, R.; et al. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Measurements of air pollution emission factors for marine transportation in SECA |
Type |
A1 Journal article |
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Year |
2013 |
Publication |
Atmospheric measurement techniques |
Abbreviated Journal |
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6 |
Issue |
7 |
Pages |
1777-1791 |
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A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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The chemical composition of the plumes of seagoing ships was measured during a two week long measurement campaign in the port of Rotterdam, Hoek van Holland The Netherlands, in September 2009. Altogether, 497 ships were monitored and a statistical evaluation of emission factors (g kg−1 fuel) was provided. The concerned main atmospheric components were SO2, NO2, NOx and the aerosol particle number. In addition, the elemental and water-soluble ionic composition of the emitted particulate matter was determined. Emission factors were expressed as a function of ship type, power and crankshaft rotational speed. The average SO2 emission factor was found to be roughly half of what is allowed in sulphur emission control areas (16 vs. 30 g kg−1 fuel), and exceedances of this limit were rarely registered. A significant linear relationship was observed between the SO2 and particle number emission factors. The intercept of the regression line, 4.8 × 1015 (kg fuel)−1, gives the average number of particles formed during the burning of 1 kg zero sulphur content fuel, while the slope, 2 × 1018, provides the average number of particles formed with 1 kg sulphur burnt with the fuel. Water-soluble ionic composition analysis of the aerosol samples from the plumes showed that ~144 g of particulate sulphate was emitted from 1 kg sulphur burnt with the fuel. The mass median diameter of sulphate particles estimated from the measurements was ~42 nm. |
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000322546800014 |
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2013-07-24 |
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1867-1381; 1867-8548 |
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Call Number ![sorted by Call Number field, descending order (down)](img/sort_desc.gif) |
UA @ admin @ c:irua:109265 |
Serial |
8211 |
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Author |
Smits, M. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Photocatalytic degradation of diesel soot : from application to reaction mechanism |
Type |
Doctoral thesis |
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Year |
2013 |
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160 p. |
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Doctoral thesis; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) |
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978-90-5728-415-1 |
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UA @ admin @ c:irua:108803 |
Serial |
8380 |
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Author |
Van Grieken, R. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Editorial : introducing Dr Markowicz as X-Ray Spectrometry's new associate editor for Europe |
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A1 Journal article |
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2013 |
Publication |
X-ray spectrometry |
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42 |
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4 |
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175 |
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A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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000320727900001 |
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2013-06-20 |
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0049-8246 |
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Call Number ![sorted by Call Number field, descending order (down)](img/sort_desc.gif) |
UA @ admin @ c:irua:108738 |
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7832 |
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Author |
Caratelli, D.; Gielis, J.; Ricci, P.E.; Tavkhelidze, I. |
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Title |
Some properties of “bulky” links, generated by Generalized Möbius Listing's bodies GML4n |
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P3 Proceeding |
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2013 |
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P3 Proceeding; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) |
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UA @ admin @ c:irua:108672 |
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8555 |
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Author |
Van Wesenbeeck, K.; Hauchecorne, B.; Lenaerts, S. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Integration of a photocatalytic coating in a corona discharge unit for plasma assisted catalysis |
Type |
A1 Journal article |
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2013 |
Publication |
Journal of environmental solutions |
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2 |
Issue |
1 |
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16-24 |
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A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) |
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The combination of a non-thermal plasma with catalysis is considered as a sustainable indoor air purification technology to achieve complete oxidation at reduced energy cost with a longer electrode lifetime. An optimal window of operation for plasma assisted catalysis is found by varying the polarity, the applied voltage, the relative humidity of the gas phase and the configuration of the plasma reactor. The results show that, in general, negative corona discharge can obtain higher nitric oxide (NO) conversion efficiencies compared to positive corona. It is also clear that at higher applied voltages, higher conversion efficiency can be reached. The effect of relative humidity, however, is not found to be significant in the range (0 20.3 %) tested in this work. Additionally, the configuration of the plasma reactor is changed by varying the amount of pins that are attached at the collector electrode. The results show that there is an optimum at 10 pairs of pins to obtain a high conversion efficiency of NO. By applying a coating on the collector electrode of the plasma reactor, it is possible to see the influence of the coating on the performance of the plasma system, which was operating in the previously found optimal window. It stands clear that the use of a plasma assisted catalysis system has high potential as an integrated and sustainable indoor air purification technology. |
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UA @ admin @ c:irua:108646 |
Serial |
5966 |
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Permanent link to this record |
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Author |
Caratelli, D.; Gielis, J.; Tavkhelidze, I.; Ricci, P.E. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
The Dirichlet problem for the Laplace equation in supershaped annuli |
Type |
A1 Journal article |
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2013 |
Publication |
Boundary value problems |
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113-10 |
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A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) |
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The Dirichlet problem for the Laplace equation in normal-polar annuli is addressed by using a suitable Fourier-like technique. Attention is in particular focused on the wide class of domains whose boundaries are defined by the so-called superformula introduced by Gielis. A dedicated numerical procedure based on the computer algebra system Mathematica© is developed in order to validate the proposed methodology. In this way, highly accurate approximations of the solution, featuring properties similar to the classical ones, are obtained. |
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000325760900002&DestLinkType=CitingArticles&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7 |
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2013-05-03 |
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1687-2762; 1687-2770 |
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UA library record; WoS citing articles; WoS full record |
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UA @ admin @ c:irua:108644 |
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7812 |
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Author |
Vázquez, C.; Darchuk, L.; Stefaniak, E.A.; Van Grieken, R.; Palacios, O.R. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Compositional correlation between pigments found in excavations and on human bones investigated with micro-raman spectrometry and scanning electron microscopy |
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H2 Book chapter |
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2011 |
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13-18
T2 - Integration of nuclear spectrometry met |
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H2 Book chapter; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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978-92-0-121310-5 |
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UA @ admin @ c:irua:108205 |
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7716 |
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Author |
Mmari, A.G.; Potgieter-Vermaak, S.S.; Bencs, L.; McCrindle, R.I.; Van Grieken, R. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Elemental and ionic components of atmospheric aerosols and associated gaseous pollutants in and near Dar es Salaam, Tanzania |
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A1 Journal article |
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2013 |
Publication |
Atmospheric environment : an international journal |
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77 |
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51-61 |
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A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Elemental and water-soluble ionic compounds (WSICs) of atmospheric aerosols (total suspended particulate TSP) and some gaseous pollutants (SO2, NO2 and O3) from a coastal, semi-urban and rural site in and near Dar es Salaam, Tanzania were investigated during dry and wet seasons of January 2005November 2007. Na+, Ca2+, SO42−, NO3− and Cl− made up the dominant fraction of WSICs during the dry season with average concentrations ranging from non-detectable (n.d.)5.4, 0.262.6, 0.7414.7, 0.41.5 and 1.13.4 μg m−3, respectively, while in the wet season, from n.d. up to 1.7, 1.2, 4.4, 2.1 and 3.0 μg m−3, respectively. The total air concentrations of the detected elements (Al, Si, S, Cl, K, Ca, Fe and Zn) showed seasonal and site-specific variation in the range of 7.526.6 with an average of 14.5 μg m−3. Most of the air concentrations of pollutants were observed to decrease with increasing distance from the coastal site, which is under urban and industrial pollutant emissions. Sulphur and nitrogen oxidation ratios during the dry season ranged from 0.08 to 0.91 and 0.013 to 0.049, respectively, while they were between 0.090.65 and 0.0020.095, respectively, in the wet season. These values indicate the photochemical oxidation of SO2 and a high extent of NO3−formation in the atmosphere. Neutralization ratios revealed the presence of acidic SO42− and NO3− aerosols. Principal component analysis identified sea spray, local combustion, vehicular traffic, biomass burning and re-suspended road dust as dominant sources of aerosols at the studied coastal and semi-urban sites. However, at the rural site, besides sea spray, crustal sources, soil dust re-suspension and long-range transport are the possible origins of suspended particulates. |
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000324848500006 |
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2013-05-01 |
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1352-2310 |
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UA library record; WoS full record; WoS citing articles |
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Call Number ![sorted by Call Number field, descending order (down)](img/sort_desc.gif) |
UA @ admin @ c:irua:108096 |
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7882 |
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Permanent link to this record |
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Author |
Bencs, L.; Horemans, B.; Van Grieken, R.; et al. |
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Atmospheric deposition fluxes to the Belgian marine waters originating from ship emissions : SHIPFLUX : final report |
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Minutes and reports |
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2012 |
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Minutes and reports; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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UA @ admin @ c:irua:107883 |
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7524 |
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Jabłoński, M.B.; Stefaniak, E.A.; Darchuk, L.; Turzańska, K.; Gorzelak, M.; Kuduk, R.; Dorriné, W.; Van Grieken, R. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Microchemical investigation of bone derived from mice treated with strontium in different chemical forms using scanning electron microscopy and micro-Raman spectroscopy |
Type |
A1 Journal article |
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Year |
2013 |
Publication |
Microchemical journal |
Abbreviated Journal |
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Volume |
108 |
Issue |
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Pages |
168-173 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
We used SEM/EDX and micro-Raman spectroscopy to investigate the chemical changes (both on the level of elementary and molecular composition) of mice bones when strontium is incorporated in their microstructure after being administered in the form of two salts: chloride and ranelate. Strontium accumulated mainly in vicinity of bone edges, both cortical and close to bone marrow. The distribution of other elements comprising bone samples (Ca, P, Mg, K etc.) was also determined by energy-dispersive X-ray analysis (EDX). The area adjacent to a cortical bone edge with accumulated strontium has presented modified Raman spectral profiles. Besides most of the Raman bands typical for both mineral (hydroxyapatite with carbonate substitution type B) and organic phases of a bone, we observed a Raman band at 811 cm− 1. It was detected regularly in the sample with high strontium concentration. |
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Wos |
000316427100027 |
Publication Date |
2012-10-25 |
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Edition |
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ISSN |
0026-265x; 0026-265x |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Call Number ![sorted by Call Number field, descending order (down)](img/sort_desc.gif) |
UA @ admin @ c:irua:107882 |
Serial |
8246 |
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Permanent link to this record |
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Author |
De Vis, K.; Jembrih-Simbürger, D.; Schalm, O.; Schreiner, M.; Caen, J. |
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Title |
Einfluss verschiedener Silbersalze auf die Farbintensität von Silbergelb : analytische Untersuchungen |
Type |
A2 Journal article |
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Year |
2002 |
Publication |
Zeitschrift für Kunsttechnologie und Konservierung |
Abbreviated Journal |
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Volume |
16 |
Issue |
1 |
Pages |
147-157 |
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Keywords |
A2 Journal article; Art; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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ISSN |
0931-7198 |
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UA library record |
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no |
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Call Number ![sorted by Call Number field, descending order (down)](img/sort_desc.gif) |
UA @ admin @ c:irua:107748 |
Serial |
7855 |
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Permanent link to this record |
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Author |
Reniers, G.L.L.; Sörensen, K.; Vrancken, K. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Conclusions and recommendations |
Type |
H1 Book chapter |
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Year |
2013 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
265-268
T2 - Management principles of sustainable |
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Keywords |
H1 Book chapter; Engineering Management (ENM); Sustainable Energy, Air and Water Technology (DuEL) |
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ISBN |
9783527649488 |
Additional Links |
UA library record |
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no |
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Call Number ![sorted by Call Number field, descending order (down)](img/sort_desc.gif) |
UA @ admin @ c:irua:107610 |
Serial |
7723 |
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Permanent link to this record |
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Author |
Reniers, G.L.L.; Sörensen, K.; Vrancken, K. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Editorial introduction |
Type |
H1 Book chapter |
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Year |
2013 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
1-6
T2 - Management principles of sustainable indu |
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Keywords |
H1 Book chapter; Engineering Management (ENM); Sustainable Energy, Air and Water Technology (DuEL) |
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ISBN |
9783527649488 |
Additional Links |
UA library record |
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Open Access |
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no |
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Call Number ![sorted by Call Number field, descending order (down)](img/sort_desc.gif) |
UA @ admin @ c:irua:107601 |
Serial |
7833 |
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Permanent link to this record |
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Author |
Alejo, D.; Morales, M.C.; de la Torre, J.B.; Grau, R.; Bencs, L.; Van Grieken, R.; van Espen, P.; Sosa, D.; Nuñez, V. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Seasonal trends of atmospheric nitrogen dioxide and sulfur dioxide over North Santa Clara, Cuba |
Type |
A1 Journal article |
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Year |
2013 |
Publication |
Environmental monitoring and assessment |
Abbreviated Journal |
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Volume |
185 |
Issue |
7 |
Pages |
6023-6033 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
Atmospheric nitrogen dioxide (NO2) and sulfur dioxide (SO2) levels were monitored simultaneously by means of Radiello passive samplers at six sites of Santa Clara city, Cuba, in the cold and the warm seasons in 2010. The dissolved ionic forms of NO2 and SO2 as nitrate and sulfite plus sulfate, respectively, were determined by means of ion chromatography. Analysis of NO2 as nitrite was also performed by UVVis spectrophotometry. For NO2, significant t tests show good agreement between the results of IC and UVVis methods. The NO2 and SO2 concentrations peaked in the cold season, while their minimum levels were experienced in the warm season. The pollutant levels do not exceed the maximum allowable limit of the Cuban Standard 39:1999, i.e., 40 μg/m3 and 50 μg/m3 for NO2 and SO2, respectively. The lowest pollutant concentrations obtained in the warm season can be attributed to an increase in their removal via precipitation (scavenging) while to the decreased traffic density and industrial emission during the summer holidays (e.g., July and August). |
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Wos |
000319753600053 |
Publication Date |
2012-12-03 |
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Edition |
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ISSN |
1420-2026; 1573-2967 |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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no |
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Call Number ![sorted by Call Number field, descending order (down)](img/sort_desc.gif) |
UA @ admin @ c:irua:107293 |
Serial |
8501 |
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Permanent link to this record |
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Author |
Fougerolle, Y.D.; Truchetet, F.; Demonceaux, C.; Gielis, J. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
A robust evolutionary algorithm for the recovery of rational Gielis curves |
Type |
A1 Journal article |
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Year |
2013 |
Publication |
Pattern recognition |
Abbreviated Journal |
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Volume |
46 |
Issue |
8 |
Pages |
2078-2091 |
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Keywords |
A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
Gielis curves (GC) can represent a wide range of shapes and patterns ranging from star shapes to symmetric and asymmetric polygons, and even self intersecting curves. Such patterns appear in natural objects or phenomena, such as flowers, crystals, pollen structures, animals, or even wave propagation. Gielis curves and surfaces are an extension of Lamé curves and surfaces (superquadrics) which have benefited in the last two decades of extensive researches to retrieve their parameters from various data types, such as range images, 2D and 3D point clouds, etc. Unfortunately, the most efficient techniques for superquadrics recovery, based on deterministic methods, cannot directly be adapted to Gielis curves. Indeed, the different nature of their parameters forbids the use of a unified gradient descent approach, which requires initial pre-processings, such as the symmetry detection, and a reliable pose and scale estimation. Furthermore, even the most recent algorithms in the literature remain extremely sensitive to initialization and often fall into local minima in the presence of large missing data. We present a simple evolutionary algorithm which overcomes most of these issues and unifies all of the required operations into a single though efficient approach. The key ideas in this paper are the replacement of the potential fields used for the cost function (closed form) by the shortest Euclidean distance (SED, iterative approach), the construction of cost functions which minimize the shortest distance as well as the curve length using R-functions, and slight modifications of the evolutionary operators. We show that the proposed cost function based on SED and R-function offers the best compromise in terms of accuracy, robustness to noise, and missing data. |
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Wos |
000317944800002 |
Publication Date |
2013-01-29 |
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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 |
0031-3203 |
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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no |
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Call Number ![sorted by Call Number field, descending order (down)](img/sort_desc.gif) |
UA @ admin @ c:irua:107181 |
Serial |
8485 |
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Permanent link to this record |
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Author |
Caratelli, D.; Gielis, J.; Tavkhelidze, I.; Ricci, P.E. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Spherical harmonic solution of the Robin problem for the Helmholtz equation in a supershaped shell |
Type |
A1 Journal article |
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Year |
2013 |
Publication |
Applied mathematics |
Abbreviated Journal |
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Volume |
4 |
Issue |
1a |
Pages |
263-270 |
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Keywords |
A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
The Robin problem for the Helmholtz equation in normal-polar shells is addressed by using a suitable spherical harmonic expansion technique. Attention is in particular focused on the wide class of domains whose boundaries are defined by a generalized version of the so-called superformula introduced by Gielis. A dedicated numerical procedure based on the computer algebra system Mathematica? is developed in order to validate the proposed methodology. In this way, highly accurate approximations of the solution, featuring properties similar to the classical ones, are obtained. |
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Wos |
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Publication Date |
2013-01-30 |
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Edition |
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ISSN |
2152-7385 |
ISBN |
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Additional Links |
UA library record |
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Notes |
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Approved |
no |
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Call Number ![sorted by Call Number field, descending order (down)](img/sort_desc.gif) |
UA @ admin @ c:irua:107177 |
Serial |
8576 |
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Permanent link to this record |
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Author |
Tavkhelidze, I.; Cassisa, C.; Gielis, J.; Ricci, P.E. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
About “bulky” links, generated by generalized Möbius Listing's bodies GML3n |
Type |
A1 Journal article |
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Year |
2013 |
Publication |
Matematica e applicazioni : atti della Accademia nazionale dei Lincei |
Abbreviated Journal |
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Volume |
24 |
Issue |
1 |
Pages |
11-38 |
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Keywords |
A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
In the present paper we consider the “bulky knots'' and ”bulky links'', which appear after cutting a Generalized Möbius Listing's GMLn3 body (whose radial cross section is a plane 3-symmetric figure with three vertices) along different Generalized Möbius Listing's surfaces GMLn2 situated in it. This article is aimed to investigate the number and geometric structure of the independent objects appearing after such a cutting process of GMLn3 bodies. In most cases we are able to count the indices of the resulting mathematical objects according to the known tabulation for Knots and Links of small complexity. |
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Wos |
000316567700002 |
Publication Date |
2013-03-13 |
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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 |
1120-6357 |
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 ![sorted by Call Number field, descending order (down)](img/sort_desc.gif) |
UA @ admin @ c:irua:107174 |
Serial |
7405 |
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Permanent link to this record |
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Author |
Stefaniak, E.A.; Darchuk, L.; Sapundjiev, D.; Kips, R.; Aregbe, Y.; Van Grieken, R. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
New insight into UO2F2 particulate structure by micro-Raman spectroscopy |
Type |
A1 Journal article |
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Year |
2013 |
Publication |
Journal of molecular structure |
Abbreviated Journal |
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Volume |
1040 |
Issue |
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Pages |
206-212 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
Uranyl fluoride particles produced via hydrolysis of uranium hexafluoride have been deposited on different substrates: polished graphite disks, silver foil, stainless steel and gold-coated silicon wafer, and measured with micro-Raman spectroscopy (MRS). All three metallic substrates enhanced the Raman signal delivered by UO2F2 in comparison to graphite. The fundamental stretching of the UO band appeared at 867 cm−1 in case of the graphite substrate, while in case of the others it was shifted to lower frequencies (down to 839 cm−1). All applied metallic substrates showed the expected effect of Raman signal enhancement; however the gold layer appeared to be most effective. Application of new substrates provides more information on the molecular structure of uranyl fluoride precipitation, which is interesting for nuclear safeguards and nuclear environmental analysis. |
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Wos |
000318961000027 |
Publication Date |
2013-02-19 |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0022-2860 |
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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Approved |
no |
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Call Number ![sorted by Call Number field, descending order (down)](img/sort_desc.gif) |
UA @ admin @ c:irua:107123 |
Serial |
8299 |
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Permanent link to this record |
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Author |
Godoi, R.H.M.; Carneiro, B.H.B.; Paralovo, S.L.; Campos, V.P.; Tavares, T.M.; Evangelista, H.; Van Grieken, R.; Godoi, A.F.L. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Indoor air quality of a museum in a subtropical climate : the Oscar Niemeyer museum in Curitiba, Brazil |
Type |
A1 Journal article |
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Year |
2013 |
Publication |
The science of the total environment |
Abbreviated Journal |
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Volume |
452 |
Issue |
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Pages |
314-320 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
The assessment of damage to indoor cultural heritage, in particular by pollutants, is nowadays a major and growing concern for curators and conservators. Nevertheless, although many museums have been widely investigated in Europe, the effects of particulate matter and gaseous pollutants in museums under tropical and subtropical climates and with different economic realities are still unclear. An important portion of the world's cultural heritage is currently in tropical countries where both human and financial resources for preserving museum collections are limited. Hence, our aim is to assess the damage that can be caused to the artwork by pollution in hot and humid environments, where air quality and microclimatic condition differences can cause deterioration. As a case study, particulate matter as well as gases were collected at the Oscar Niemeyer Museum (MON) in Curitiba, Brazil, where large modern and contemporary works of art are displayed. NO2, SO2, O3, Acetic Acid, Formic Acids and BTEX, in the ambient air, were sampled by means of passive diffusive sampling and their concentrations were determined by IC or GCMS. The particulate matter was collected in bulk form and analyzed with the use of energy dispersive X-ray fluorescence and aethalometer. The chemical compositions of individual particles were quantitatively elucidated, including low-Z components like C, N and O, as well as higher-Z elements, using automated electron probe microanalysis. The gaseous and particulate matter levels were then compared with the concentrations obtained for the same pollutants in other museums, located in places with different climates, and with some reference values provided by international cultural heritage conservation centers. Results are interpreted separately and as a whole with the specific aim of identifying compounds that could contribute to the chemical reactions taking place on the surfaces of artifacts and which could potentially cause irreversible damage to the artworks. |
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Wos |
000318530600034 |
Publication Date |
2013-03-23 |
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Abbreviated Series Title |
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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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Approved |
no |
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Call Number ![sorted by Call Number field, descending order (down)](img/sort_desc.gif) |
UA @ admin @ c:irua:106766 |
Serial |
8083 |
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Permanent link to this record |
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Author |
Akbulut, S.; Krupinska, B.; Worobiec, A.; Čevik, U.; Taskin, H.; Van Grieken, R.; Samek, L.; Wiłkojć, E. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Gross alpha and beta activities of airborne particulate samples from Wawel Royal Castle Museum in Cracow, Poland |
Type |
A1 Journal article |
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Year |
2013 |
Publication |
Journal of radioanalytical and nuclear chemistry |
Abbreviated Journal |
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Volume |
295 |
Issue |
2 |
Pages |
1567-1573 |
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Keywords |
A1 Journal article; Engineering sciences. Technology; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Laboratory Experimental Medicine and Pediatrics (LEMP) |
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Abstract |
Soils are complex mixtures of organic, inorganic materials, and metal compounds from anthropogenic sources. In order to identify the pollution sources, their magnitude and development, several X-ray analytical methods were applied in this study. The concentrations of 16 elements were determined in all the soil samples using energy dispersive X-ray fluorescence spectrometry. Soils of unknown origin were observed by scanning electron microscopy equipped with a Si(Li) X-ray detector using Monte Carlo simulation approach. The mineralogical analyses were carried out using X-ray diffraction spectrometry. Due to the correlations between heavy metals and oxide compounds, the samples were analyzed also by electron probe microanalyzer (EPMA) in order to have information about their oxide contents. On the other hand, soil pH and salinity levels were identified owing to their influence between heavy metal and soil-surface chemistry. Moreover, the geoaccumulation index (I geo) enables the assessment of contamination by comparing current and pre-industrial concentrations. |
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Wos |
000313713300105 |
Publication Date |
2012-07-24 |
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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 |
0236-5731; 1588-2780 |
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 ![sorted by Call Number field, descending order (down)](img/sort_desc.gif) |
UA @ admin @ c:irua:106763 |
Serial |
8012 |
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Permanent link to this record |
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Author |
Akbulut, S.; Van Grieken, R.; Kilic, M.A.; Čevik, U.; Rotondo, G.G. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Identification of heavy metal origins related to chemical and morphological soil properties using several non-destructive X-ray analytical methods |
Type |
A1 Journal article |
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Year |
2013 |
Publication |
Environmental monitoring and assessment |
Abbreviated Journal |
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Volume |
185 |
Issue |
3 |
Pages |
2377-2394 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
Soils are complex mixtures of organic, inorganic materials, and metal compounds from anthropogenic sources. In order to identify the pollution sources, their magnitude and development, several X-ray analytical methods were applied in this study. The concentrations of 16 elements were determined in all the soil samples using energy dispersive X-ray fluorescence spectrometry. Soils of unknown origin were observed by scanning electron microscopy equipped with a Si(Li) X-ray detector using Monte Carlo simulation approach. The mineralogical analyses were carried out using X-ray diffraction spectrometry. Due to the correlations between heavy metals and oxide compounds, the samples were analyzed also by electron probe microanalyzer (EPMA) in order to have information about their oxide contents. On the other hand, soil pH and salinity levels were identified owing to their influence between heavy metal and soil-surface chemistry. Moreover, the geoaccumulation index (I geo) enables the assessment of contamination by comparing current and pre-industrial concentrations. |
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Wos |
000314033300029 |
Publication Date |
2012-06-21 |
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Series Issue |
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Edition |
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ISSN |
1420-2026; 1573-2967 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Open Access |
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Approved |
no |
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Call Number ![sorted by Call Number field, descending order (down)](img/sort_desc.gif) |
UA @ admin @ c:irua:106755 |
Serial |
8052 |
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Permanent link to this record |
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Author |
Čevik, U.; Akbulut, S.; Makarovska, Y.; Van Grieken, R. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Polarized-beam high-energy EDXRF in geological samples |
Type |
A1 Journal article |
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Year |
2013 |
Publication |
Spectroscopy letters |
Abbreviated Journal |
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Volume |
46 |
Issue |
1 |
Pages |
36-46 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
Certified reference materials (NIST 1645, BCR 143, IAEA 7, BCR 141, NIESCRM02, and IAEA 375) were used for determining the performance of a secondary target energy-dispersive X-ray fluorescence (EDXRF) spectrometer, Epsilon 5 (PANalytical, Almelo, the Netherlands). For the evaluation of the EDXRF spectra with polarized-beam high-energy excitation, the WinAxil software package has been applied. The results showed that Epsilon 5, EDXRF spectrometry is favorable for the determination of elemental concentrations in geological samples, but the sample preparation has the largest influence on the precision. However, they presented good agreement with certified values for most of the elements. |
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Wos |
000314018900005 |
Publication Date |
2013-01-03 |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0038-7010 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Open Access |
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Approved |
no |
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Call Number ![sorted by Call Number field, descending order (down)](img/sort_desc.gif) |
UA @ admin @ c:irua:106754 |
Serial |
8392 |
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Permanent link to this record |
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Author |
Reniers, G.; Sörensen, K.; Vrancken, K. |
![find book details (via ISBN) isbn](img/isbn.gif)
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Title |
Sustainable industrial chemistry from a nontechnological viewpoint |
Type |
H1 Book chapter |
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Year |
2013 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
33-41
T2 - Management principles of sustainable in |
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Keywords |
H1 Book chapter; Economics; Engineering Management (ENM); Sustainable Energy, Air and Water Technology (DuEL) |
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Wos |
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Publication Date |
2013-03-14 |
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Edition |
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ISSN |
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ISBN |
9783527330997; 9783527649488 |
Additional Links |
UA library record |
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Impact Factor |
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Times cited |
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Open Access |
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Notes |
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Approved |
no |
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Call Number ![sorted by Call Number field, descending order (down)](img/sort_desc.gif) |
UA @ admin @ c:irua:106566 |
Serial |
8629 |
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Permanent link to this record |
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Author |
Reniers, G.; Sörensen, K.; Vrancken, K. |
![find book details (via ISBN) isbn](img/isbn.gif)
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Title |
Management principles of sustainable industrial chemistry : theories, concepts and industrial examples for achieving sustainable chemical products and processes from a non-technological viewpoint |
Type |
ME1 Book as editor or co-editor |
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Year |
2013 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
274 p. |
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Keywords |
ME1 Book as editor or co-editor; Economics; Engineering Management (ENM); Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
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Wos |
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Publication Date |
2013-03-14 |
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ISBN |
978-3-527-33099-7; 978-3-527-64948-8 |
Additional Links |
UA library record |
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Open Access |
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Approved |
no |
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Call Number ![sorted by Call Number field, descending order (down)](img/sort_desc.gif) |
UA @ admin @ c:irua:106565 |
Serial |
8198 |
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Permanent link to this record |
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Author |
Marguí, E.; Van Grieken, R. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
X-ray fluorescence spectrometry and related techniques : an introduction |
Type |
MA3 Book as author |
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Year |
2013 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
148 p. |
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Keywords |
MA3 Book as author; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
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ISSN |
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ISBN |
978-1-60650-391-1 |
Additional Links |
UA library record |
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Notes |
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Approved |
no |
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Call Number ![sorted by Call Number field, descending order (down)](img/sort_desc.gif) |
UA @ admin @ c:irua:106179 |
Serial |
8768 |
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Permanent link to this record |
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Author |
Carniato, L.; Schoups, G.; Seuntjens, P.; Van Nooten, T.; Simons, Q.; Bastiaens, L. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Predicting longevity of iron permeable reactive barriers using multiple iron deactivation models |
Type |
A1 Journal article |
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Year |
2012 |
Publication |
Journal of contaminant hydrology |
Abbreviated Journal |
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Volume |
142 |
Issue |
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Pages |
93-108 |
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Keywords |
A1 Journal article; Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
In this study we investigate the model uncertainties involved in predicting long-term permeable reactive barrier (PRB) remediation efficiency based on a lab-scale column experiment under accelerated flow conditions. A PRB consisting of 20% iron and 80% sand was simulated in a laboratory-scale column and contaminated groundwater was pumped into the column for approximately 1 year at an average groundwater velocity of 3.7E – 1 m d(-1). Dissolved contaminants (PCE. TCE, cis-DCE, trans-DCE and VC) and inorganic (Ca2+, Fe2+, TIC and pH) concentrations were measured in groundwater sampled at different times and at eight different distances along the column. These measurements were used to calibrate a multi-component reactive transport model, which subsequently provided predictions of long-term PRB efficiency under reduced flow conditions (i.e., groundwater velocity of 1.4E -3 m d(-1)), representative of a field site of interest in this study. Iron reactive surface reduction due to mineral precipitation and iron dissolution was simulated using four different models. All models were able to reasonably well reproduce the column experiment measurements, whereas the extrapolated long-term efficiency under different flow rates was significantly different between the different models. These results highlight significant model uncertainties associated with extrapolating long-term PRB performance based on lab-scale column experiments. These uncertainties should be accounted for at the PRB design phase, and may be reduced by independent experiments and field observations aimed at a better understanding of reactive surface deactivation mechanisms in iron PRBs. (C) 2012 Elsevier B.V. All rights reserved. |
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Wos |
000312753000009 |
Publication Date |
2012-09-13 |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0169-7722 |
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 ![sorted by Call Number field, descending order (down)](img/sort_desc.gif) |
UA @ admin @ c:irua:106010 |
Serial |
8402 |
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Permanent link to this record |
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Author |
Cataldo, M.; Evangelista, H.; Simões, J.C.; Godoi, R.H.M.; Simmonds, I.; Hollanda, M.H.; Wainer, I.; Aquino, F.; Van Grieken, R. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Mineral dust variability in central West Antarctica associated with ozone depletion |
Type |
A1 Journal article |
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Year |
2013 |
Publication |
Atmospheric chemistry and physics |
Abbreviated Journal |
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Volume |
13 |
Issue |
4 |
Pages |
2165-2175 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
We present here data of mineral dust variability retrieved from an ice core of the central West Antarctic, spanning the last five decades. Main evidence provided by the geochemical analysis is that northerly air mass incursions to the coring site, tracked by insoluble dust microparticles, have declined over the past 50 yr. This result contrasts with dust records from ice cores reported to the coastal West Antarctic that show increases since mid-20th century. We attribute this difference to regional climatic changes due to the ozone depletion and its implications to westerly winds. We found that the diameters of insoluble microparticles in the central West Antarctica ice core are significantly correlated with cyclone depth (energy) and wind intensity around Antarctica. |
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Place of Publication |
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Wos |
000315406600027 |
Publication Date |
2013-02-25 |
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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 |
1680-7316; 1680-7324 |
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 ![sorted by Call Number field, descending order (down)](img/sort_desc.gif) |
UA @ admin @ c:irua:105832 |
Serial |
8250 |
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Permanent link to this record |