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Author |
Jain, R.; Rather, J.A.; Dwivedi, A.; Vikas |
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Title |
Highly sensitive and selective voltammetric sensor fullerene modified glassy carbon electrode for determination of cefitizoxime in solubilized system |
Type |
A1 Journal article |
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Year |
2010 |
Publication |
Electroanalysis |
Abbreviated Journal |
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Volume |
22 |
Issue |
21 |
Pages |
2600-2606 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
The usefulness of fullerene modified glassy carbon electrode in mediating the reduction of cefitizoxime in solubilized system has been demonstrated. Due to the unique structure and extraordinary properties, fullerene shows higher catalytic efficiency towards cefitizoxime reduction. The kinetic parameters, electron transfer coefficient (α) and rate constant (K0) across the modified electrode are 0.37 and 0.1081/s respectively. The proposed square-wave voltammetric method is linear over the concentration range 1.210.3 µg/mL. The limit of detection (LOD) is found 0.27 ng/mL. High sensitivity and selectivity together with low detection limit of the electrode response make it suitable for the determination of cefitizoxime. |
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Wos |
000284052900015 |
Publication Date |
2010-10-04 |
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ISSN |
1040-0397 |
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UA library record; WoS full record; WoS citing articles |
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no |
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Call Number |
UA @ admin @ c:irua:98690 |
Serial |
8042 |
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Author |
Vanmeert, F. |
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Title |
Highly specific X-ray powder diffraction imaging at the macroscopic and microscopic scale |
Type |
Doctoral thesis |
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Year |
2019 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
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Keywords |
Doctoral thesis; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
At or below the surface of painted works of art, valuable information is present that provides insights into an object’s past, such as the artist’s technique and the creative process that was followed or its conservation history, but also on its current state of preservation. Typically, a (very) limited set of small paint samples is taken which provide direct access to the individual paint layers. The chemical build-up of these layers can then be investigated in great detail using various microscopic analytical methods. However, in recent years a new trend towards both elemental and chemical imaging techniques has been set which are capable of visualizing the (often) heterogeneous composition of painted objects on a macroscopic scale. In this dissertation, various forms of specificity attainable with X‑ray powder diffraction (XRPD) imaging are explored: at the chemical, material and spatial level. This high specificity is illustrated throughout several applications stemming from the field of cultural heritage, both at the macroscopic (MA) and microscopic (µ) scale. As a first step, XRPD imaging was transformed to a transportable instrument that can be employed for the in situ investigation of artworks, e.g., inside museums and conservation workshops. With this unique instrument large‑scale maps (cm2 – dm2) reflecting the distribution of crystalline phases on/below the surface of flat painted artefacts can be visualized in a noninvasive manner. In this way compound-specific information was attained which can be related to original pigments or materials that have been added in a later stage and even degradation/secondary products that have formed spontaneously inside the paint layers. Additionally, with MA‑XRPD imaging it was possible to link quantitative information of pigment compositions and preferred orientation effects to the 2D compound‑specific distribution images, allowing for a further distinction between very similar artists’ materials. Furthermore, promising results for the limited depth-selectivity of this technique, obtained by exploiting the small shift in the position of the diffraction signals originating from the layered sequence of the pigments, are shown. Finally, a minute paint sample from Wheat stack under a cloudy sky by Van Gogh was investigated at a synchrotron radiation facility with tomographic µ‑XRPD imaging at the microscopic scale. The high chemical and spatial specificity of this imaging method was exploited to further elucidate the degradation pathway of the red lead pigment. |
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no |
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Call Number |
UA @ admin @ c:irua:159805 |
Serial |
8043 |
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Author |
Worobiec, A.; Zwozdziak, A.; Sówka, I.; Zwozdziak, J.; Stefaniak, E.A.; Buczyńska, A.; Krata, A.; van Meel, K.; Van Grieken, R.; Górka, M.; Jedrysek, M.-O. |
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Title |
Historical changes in air pollution in the tri-border region of Poland, Czech Republic and Germany |
Type |
A1 Journal article |
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Year |
2008 |
Publication |
Environment protection engineering |
Abbreviated Journal |
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Volume |
34 |
Issue |
4 |
Pages |
81-90 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Laboratory Experimental Medicine and Pediatrics (LEMP) |
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Abstract |
In this study, we show the trends in the concentration Of SO2 and particulate matter (PM) in two health resorts, located in the tri-border region of Poland, Germany and Czech Republic. We analyze the annual time series and the seasonal variability of PM concentration for the months of July and February over the period of 1996-2007. Additionally, in July 2006, we measured the mean 24-hour concentration of PM and the content of heavy metals (by EDXRF analysis). We prove that nowadays air pollution in this region has diminished to a large extent as compared to the 90s of the last century. In Cieplice, the local influence is still evident; while Czerniawa is exposed to a periodical advection of polluted air from regional sources. |
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Wos |
000262019500010 |
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Edition |
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ISSN |
0324-8828 |
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UA library record; WoS full record; WoS citing articles |
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no |
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Call Number |
UA @ admin @ c:irua:72491 |
Serial |
8044 |
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Author |
Abreu, Y.; Cruz, C.M.; Pinera, I.; Leyva, A.; Cabal, A.E.; van Espen, P.; Van Remortel, N. |
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Title |
Hyperfine electric parameters calculation in Si samples implanted with 57Mn\rightarrow57Fe |
Type |
A1 Journal article |
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Year |
2014 |
Publication |
Physica: B : condensed matter |
Abbreviated Journal |
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Volume |
445 |
Issue |
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Pages |
1-4 |
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Keywords |
A1 Journal article; Particle Physics Group; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
Nowadays the electronic structure calculations allow the study of complex systems determining the hyperfine parameters measured at a probe atom, including the presence of crystalline defects. The hyperfine electric parameters have been measured by Mossbauer spectroscopy in silicon materials implanted with Mn-57 ->,Fe-57 ions, observing four main contributions to the spectra. Nevertheless, some ambiguities still remain in the Fe-57 Mossbauer spectra interpretation in this case, regarding the damage configurations and its evolution with annealing. In the present work several implantation environments are evaluated and the Fe-57 hyperfine parameters are calculated. The observed correlation among the studied local environments and the experimental observations is presented, and a tentative microscopic description of the behavior and thermal evolution of the characteristic defects local environments of the probe atoms concerning the location of vacancies and interstitial Si in the neighborhood of Fe-57 ions in substitutional and interstitial sites is proposed. (C) 2014 Elsevier B.V. All rights reserved |
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Wos |
000336478700001 |
Publication Date |
2014-03-22 |
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Edition |
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ISSN |
0921-4526; 1873-2135 |
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UA library record; WoS full record; WoS citing articles |
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no |
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Call Number |
UA @ admin @ c:irua:117697 |
Serial |
8046 |
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Author |
Abreu Alfonso, Y. |
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Title |
Hyperfine parameters and radiation damage in semiconductors and superconducting materials |
Type |
Doctoral thesis |
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Year |
2014 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
126 p. |
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Keywords |
Doctoral thesis; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Call Number |
UA @ admin @ c:irua:116686 |
Serial |
8047 |
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Permanent link to this record |
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Author |
Tang, T.; Stamm, C.; van Griensven, A.; Seuntjens, P.; Bronders, J. |
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Title |
Hysteresis and parent-metabolite analyses unravel characteristic pesticide transport mechanisms in a mixed land use catchment |
Type |
A1 Journal article |
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Year |
2017 |
Publication |
Water research |
Abbreviated Journal |
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Volume |
124 |
Issue |
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Pages |
663-672 |
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Keywords |
A1 Journal article; Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
To properly estimate and manage pesticide occurrence in urban rivers, it is essential, but often highly challenging, to identify the key pesticide transport pathways in association to the main sources. This study examined the concentration-discharge hysteresis behaviour (hysteresis analysis) for three pesticides and the parent-metabolite concentration dynamics for two metabolites at sites with different levels of urban influence in a mixed land use catchment (25 km(2)) within the Swiss Greifensee area, aiming to identify the dominant pesticide transport pathways. Combining an adapted hysteresis classification framework with prior knowledge of the field conditions and pesticide usage, we demonstrated the possibility of using hysteresis analysis to qualitatively infer the dominant pesticide transport pathway in mixed land-use catchments. The analysis showed that hysteresis types, and therefore the dominant transport pathway, vary among pesticides, sites and rainfall events. Hysteresis loops mostly correspond to dominant transport by flow components with intermediate response time, although pesticide sources indicate that fast transport pathways are responsible in most cases (e.g. urban runoff and combined sewer overflows). The discrepancy suggests the fast transport pathways can be slowed down due to catchment storages, such as topographic depressions in agricultural areas, a wastewater treatment plant (WWTP) and other artificial storage units (e.g. retention basins) in urban areas. Moreover, the WWTP was identified as an important factor modifying the parent-metabolite concentration dynamics during rainfall events. To properly predict and manage pesticide occurrence in catchments of mixed land uses, the hydrological delaying effect and chemical processes within the artificial structures need to be accounted for, in addition to the catchment hydrology and the diversity of pesticide sources. This study demonstrates that in catchments with diverse pesticide sources and complex transport mechanisms, the adapted hysteresis analysis can help to improve our understanding on pesticide transport behaviours and provide a basis for effective management strategies.(C) 2017 Elsevier Ltd. All rights reserved. |
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Wos |
000412251500065 |
Publication Date |
2017-08-08 |
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Abbreviated Series Title |
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Edition |
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ISSN |
0043-1354; 1879-2448 |
ISBN |
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UA library record; WoS full record; WoS citing articles |
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no |
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Call Number |
UA @ admin @ c:irua:146661 |
Serial |
8048 |
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Permanent link to this record |
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Author |
Bondarenko, I.; Treiger, B.; Van Grieken, R.; van Espen, P. |
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Title |
IDAS: a new Windows based software for multivariate analysis of atmospheric aerosol composition data bases |
Type |
H3 Book chapter |
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Year |
1995 |
Publication |
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Abbreviated Journal |
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Issue |
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Pages |
308-315
T2 - Space and time in environmental infor |
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Keywords |
H3 Book chapter; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Chemometrics (Mitac 3) |
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UA library record |
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no |
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Call Number |
UA @ admin @ c:irua:12357 |
Serial |
8049 |
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Author |
Bondarenko, I.; Treiger, B.; Van Grieken, R.; van Espen, P. |
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Title |
IDAS: a Windows based software package for cluster analysis |
Type |
A1 Journal article |
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Year |
1996 |
Publication |
Spectrochimica acta: part B : atomic spectroscopy |
Abbreviated Journal |
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Volume |
51 |
Issue |
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Pages |
441-456 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Chemometrics (Mitac 3) |
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Edition |
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ISSN |
0584-8547; 1873-3565 |
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UA library record |
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Call Number |
UA @ admin @ c:irua:14649 |
Serial |
8050 |
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Author |
Salvadó, N.; Butí, S.; Pradell, T.; Beltran, V.; Cinque, G.; Juanhuix, J. |
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Title |
Identification and distribution of metal soaps and oxalates in oil and tempera paint layers in fifteenth-century altarpieces using synchrotron radiation Techniques |
Type |
H1 Book chapter |
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Year |
2019 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
195-210
T2 - Metal soaps in art : conservation and |
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Keywords |
H1 Book chapter; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
The formation and distribution of metal soaps produced as a result of the reactivity and aging of the materials in a fifteenth-century egg tempera and oil paintings on wood are presented. The painting technique involves the application of several paint layers over a ground using, sometimes in the same paint layer sequence, drying oil and egg yolk binders. We show, with a selection of examples, how the use of thin sections and a combination of various micro-sensitive analytical techniques is adequate to obtain the high-quality data necessary for the unambiguous identification of metal soaps and metal oxalates as well as their distribution in the paint layers. The techniques include micro infrared spectroscopy (μSR-FTIR) and micro X-ray diffraction (μSR-XRD) with synchrotron radiation, optical microscopy (OM), and scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDS). The data obtained sheds light about the underlying reaction and aging mechanisms happening in each paint layer and among them. This helps to define the state of conservation of the artworks. |
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Publication Date |
2019-03-23 |
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Edition |
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ISBN |
978-3-319-90616-4; 2366-6226; 978-3-319-90617-1 |
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UA library record |
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no |
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Call Number |
UA @ admin @ c:irua:172891 |
Serial |
8051 |
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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. |
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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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000314033300029 |
Publication Date |
2012-06-21 |
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Abbreviated Series Title |
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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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Approved |
no |
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Call Number |
UA @ admin @ c:irua:106755 |
Serial |
8052 |
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Permanent link to this record |
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Author |
van Malderen, H.; Hoornaert, S.; Van Grieken, R. |
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Title |
Identification of individual aerosol particles containing Cr, Pb, and Zn above the North Sea |
Type |
A1 Journal article |
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Year |
1996 |
Publication |
Environmental science and technology |
Abbreviated Journal |
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Volume |
30 |
Issue |
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Pages |
489-498 |
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Keywords |
A1 Journal article; Engineering sciences. Technology; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
Aerosol samples have been collected over the southern bight of the North Sea from an aircraft. In this way, 96 samples were taken for single-particle analysis during 16 flights. Almost 45 000 individual particles were analyzed with electron probe X-ray microanalysis. More than 5000 of these were found to contain significant concentrations of one or more of the heavy metals Cr, Pb, and Zn. With the help of hierarchical, nonhierarchical, and fuzzy clustering techniques, various heavy metal-containing particle types could be identified. Significant differences in abundances were detected in the North Sea heavy metal aerosol, depending on the origin of the air masses. In samples with continental influence 50 times more Zn- and Pb-containing particles were found than in samples with a marine history. For Cr, on the other hand, we found abundances in the marine sector that were one-third of the values for continental sectors. This might point to a rather undefined marine source, which could be the recycling of previously deposited material by reinjection into the atmosphere by sea spray. The highest values for Cr-, Pb-, and Zn-containing particles were always detected under southeastern wind directions. |
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A1996TT49600036 |
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2002-07-26 |
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ISSN |
0013-936x; 1520-5851 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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no |
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Call Number |
UA @ admin @ c:irua:14639 |
Serial |
8053 |
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Permanent link to this record |
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Author |
Verbueken, A.; Verpooten, G.; Nouwen, E.; de Broe, M.; Van Grieken, R. |
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Title |
Identification of inorganic and organic microliths in kidney sections by laser microprobe mass analysis (LAMMA) |
Type |
P3 Proceeding |
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Year |
1986 |
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Abbreviated Journal |
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P3 Proceeding; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Laboratory Experimental Medicine and Pediatrics (LEMP) |
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Notes |
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Approved |
no |
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|
Call Number |
UA @ admin @ c:irua:117510 |
Serial |
8054 |
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Permanent link to this record |
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Author |
Verbueken, A.H.; Van Grieken, R.E.; de Broe, M.E.; Wedeen, R.P. |
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Title |
Identification of inorganic and organic microliths in kidney sections by laser microprobe mass spectrometry |
Type |
A1 Journal article |
|
Year |
1987 |
Publication |
Analytica chimica acta |
Abbreviated Journal |
|
|
|
Volume |
195 |
Issue |
|
Pages |
97-115 |
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|
Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Laboratory Experimental Medicine and Pediatrics (LEMP) |
|
|
Abstract |
Laser microprobe mass spectrometry is used to identify intrarenal microliths; they appear to consist of either oxalate, urate or phosphate. Crystalline and amorphous deposits in rat and human kidney are pin-pointed by the laser beam and their chemical composition determined by mass spectrometry. The method has the potential for wide application in the identification of single organic, inorganic or combination crystals in histological sections. |
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Place of Publication |
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Wos |
A1987K019500009 |
Publication Date |
2002-07-25 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0003-2670; 1873-4324 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Open Access |
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Notes |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:116448 |
Serial |
8055 |
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Permanent link to this record |
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Author |
de Nolf, W. |
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Title |
Imaging of crystalline phase distributions by means of scanning and tomographic X-ray powder diffraction |
Type |
Doctoral thesis |
|
Year |
2013 |
Publication |
|
Abbreviated Journal |
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Volume |
|
Issue |
|
Pages |
407 p. |
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Keywords |
Doctoral thesis; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
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Address |
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Series Issue |
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Edition |
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ISSN |
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ISBN |
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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 |
UA @ admin @ c:irua:110910 |
Serial |
8057 |
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Permanent link to this record |
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Author |
Lin, A.; Truong, B.; Fridman, G.; Friedman, A.A.; Miller, V. |
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Title |
Immune cells enhance selectivity of nanosecond-pulsed DBD plasma against tumor cells |
Type |
A1 Journal article |
|
Year |
2017 |
Publication |
Plasma medicine |
Abbreviated Journal |
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|
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Volume |
7 |
Issue |
1 |
Pages |
85-96 |
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Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
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Abstract |
Cancer immunotherapy is a promising strategy that engages the patient's immune system to kill cancer cells selectively while sparing normal tissue. Treatment of macrophages with a nanosecond-pulsed dielectric barrier discharge directly enhanced their cytotoxic activity against tumor cells but not normal cells. These results underscore the clinical potential of plasma for cancer immunotherapy. |
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Address |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
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Editor |
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Language |
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Wos |
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Publication Date |
2017-08-15 |
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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 |
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ISBN |
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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 |
UA @ admin @ c:irua:155657 |
Serial |
8058 |
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Permanent link to this record |
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Author |
Ramael, M.; van den Bossche, J.; Buysse, C.; van Meerbeeck, J.; Segers, K.; Vermeire, P.; Van Marck, E. |
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Title |
Immunoreactivity for P-170 glycoprotein in malignant mesothelioma and in non-neoplastic mesothelium of the pleura using the murine monoclonal antibody JSB-1 |
Type |
A1 Journal article |
|
Year |
1992 |
Publication |
The journal of pathology |
Abbreviated Journal |
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|
|
Volume |
167 |
Issue |
|
Pages |
5-8 |
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Keywords |
A1 Journal article; Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
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Address |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
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Editor |
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Language |
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Wos |
A1992HW17700002 |
Publication Date |
2005-06-22 |
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Series Editor |
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Series Title |
|
Abbreviated Series Title |
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Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
0022-3417 |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
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Times cited |
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Open Access |
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Notes |
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Approved |
no |
|
|
Call Number |
UA @ admin @ c:irua:3618 |
Serial |
8059 |
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Permanent link to this record |
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Author |
Ramael, M.; Lemmens, G.; Eerdekens, C.; Buysse, C.; Deblier, I.; Jacobs, W.; Van Marck, E. |
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Title |
Immunoreactivity for p53 protein in malignant mesothelioma and non-neoplastic mesothelium |
Type |
A1 Journal article |
|
Year |
1992 |
Publication |
The journal of pathology |
Abbreviated Journal |
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Volume |
168 |
Issue |
|
Pages |
371-375 |
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Keywords |
A1 Journal article; Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
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Address |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
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Editor |
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Language |
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Wos |
A1992KE99600005 |
Publication Date |
2005-06-22 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
|
Series Issue |
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Edition |
|
|
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ISSN |
0022-3417 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
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Times cited |
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Open Access |
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Notes |
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Approved |
no |
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|
Call Number |
UA @ admin @ c:irua:3646 |
Serial |
8060 |
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Permanent link to this record |
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Author |
Ramael, M.; Buysse, C.; van den Bossche, J.; Segers, K.; Van Marck, E. |
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Title |
Immunoreactivity for the β chain of the platelet derived growth factor receptor (PDGF-R) in malignant mesothelioma and non-neoplastic mesothelium |
Type |
A1 Journal article |
|
Year |
1992 |
Publication |
The journal of pathology |
Abbreviated Journal |
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Volume |
167 |
Issue |
|
Pages |
1-4 |
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Keywords |
A1 Journal article; Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
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Address |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
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Editor |
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Language |
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Wos |
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Publication Date |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
|
|
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ISSN |
0022-3417 |
ISBN |
|
Additional Links |
UA library record |
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|
Impact Factor |
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Times cited |
|
Open Access |
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Notes |
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Approved |
no |
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|
Call Number |
UA @ admin @ c:irua:3614 |
Serial |
8061 |
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Permanent link to this record |
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Author |
Han, M.; De Clippeleir, H.; Al-Omari, A.; Wett, B.; Vlaeminck, S.E.; Bott, C.; Murthy, S. |
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Title |
Impact of carbon to nitrogen ratio and aeration regime on mainstream deammonification |
Type |
A1 Journal article |
|
Year |
2016 |
Publication |
Water science and technology |
Abbreviated Journal |
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|
|
Volume |
74 |
Issue |
2 |
Pages |
375-384 |
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Keywords |
A1 Journal article; Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
While deammonification of high-strength wastewater in the sludge line of sewage treatment plants has become well established, the potential cost savings spur the development of this technology for mainstream applications. This study aimed at identifying the effect of aeration and organic carbon on the deammonification process. Two 10 L sequencing bath reactors with different aeration frequencies were operated at 25 degrees C. Real wastewater effluents from chemically enhanced primary treatment and high-rate activated sludge process were fed into the reactors with biodegradable chemical oxygen demand/nitrogen (bCOD/N) of 2.0 and 0.6, respectively. It was found that shorter aerobic solids retention time (SRT) and higher aeration frequency gave more advantages for aerobic ammonium-oxidizing bacteria (AerAOB) than nitrite oxidizing bacteria (NOB) in the system. From the kinetics study, it is shown that the affinity for oxygen is higher for NOB than for AerAOB, and higher dissolved oxygen set-point could decrease the affinity of both AerAOB and NOB communities. After 514 days of operation, it was concluded that lower organic carbon levels enhanced the activity of anoxic ammonium-oxidizing bacteria (AnAOB) over denitrifiers. As a result, the contribution of AnAOB to nitrogen removal increased from 40 to 70%. Overall, a reasonably good total removal efficiency of 66% was reached under a low bCOD/N ratio of 2.0 after adaptation. |
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Address |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
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Editor |
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Language |
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Wos |
000380765500011 |
Publication Date |
2016-04-30 |
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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 |
0273-1223; 1996-9732 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
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Times cited |
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Open Access |
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Notes |
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Approved |
no |
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|
Call Number |
UA @ admin @ c:irua:135032 |
Serial |
8062 |
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Permanent link to this record |
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Author |
Samek, L.; de Maeyer-Worobiec, A.; Spolnik, Z.; Bencs, L.; Kontozova, V.; Bratasz, Ł.; Kozłowski, R.; Van Grieken, R. |
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Title |
The impact of electric overhead radiant heating on the indoor environment of historic churches |
Type |
A1 Journal article |
|
Year |
2007 |
Publication |
Journal of cultural heritage |
Abbreviated Journal |
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|
|
Volume |
8 |
Issue |
4 |
Pages |
361-369 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Laboratory Experimental Medicine and Pediatrics (LEMP) |
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Abstract |
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Address |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
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Editor |
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Language |
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Wos |
000252255500004 |
Publication Date |
2007-12-06 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
|
Series Issue |
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Edition |
|
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ISSN |
1296-2074 |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
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|
Impact Factor |
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Times cited |
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Open Access |
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Notes |
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Approved |
no |
|
|
Call Number |
UA @ admin @ c:irua:65900 |
Serial |
8063 |
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Permanent link to this record |
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Author |
Mozo, I.; Lacoste, L.; De Cocker, P.; Vlaeminck, S.E.; Sperandio, M.; Bessiere, Y.; Hernandez-Raquet, G.; Caligaris, M.; Barillon, B.; Martin Ruel, S. |
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Title |
Impact of temperature on mainstream deammonification performance and microbial community |
Type |
P3 Proceeding |
|
Year |
2016 |
Publication |
|
Abbreviated Journal |
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Volume |
|
Issue |
|
Pages |
3 p.
T2 - IWA World Water Congress & Exhibition (W |
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Keywords |
P3 Proceeding; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
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Address |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
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Editor |
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Language |
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Wos |
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Publication Date |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
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ISBN |
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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 |
UA @ admin @ c:irua:151121 |
Serial |
8065 |
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Permanent link to this record |
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Author |
Smets, W.; Wuyts, K.; Oerlemans, E.; Wuyts, S.; Denys, S.; Samson, R.; Lebeer, S. |
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Title |
Impact of urban land use on the bacterial phyllosphere of ivy (Hedera sp.) |
Type |
A1 Journal article |
|
Year |
2016 |
Publication |
Atmospheric environment : an international journal |
Abbreviated Journal |
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|
Volume |
147 |
Issue |
|
Pages |
376-383 |
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Keywords |
A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) |
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|
Abstract |
The surface of the aerial parts of the plant, also termed the phyllosphere, is a selective habitat for microbes. The bacterial composition of the phyllosphere depends on host plant species, leaf characteristics, season, climate, and geographic location of the host plant. In this study, we investigated the effect of an urban environment on the bacterial composition of phyllosphere communities. We performed a passive biomonitoring experiment in which leaves were sampled from ivy (Hedera sp.), a common evergreen climber species, in urban and non-urban locations. Exposure to traffic-generated particulate matter was estimated using leaf biomagnetic analyses. The bacterial community composition was determined using 16S rRNA gene sequencing on the Illumina MiSeq. The phyllosphere microbial communities of ivy differed greatly between urban and non-urban locations, as we observed a shift in several of the dominant taxa: Beijerinckia and Methylocystaceae were most abundant in the non-urban phyllosphere, whereas Hymenobacter and Sphingomonadaceae were dominating the urban ivy phyllosphere. The richness, diversity and composition of the communities showed greater variability in the urban than in the non-urban locations, where traffic-generated PM was lower. Interestingly, the relative abundances of eight of the ten most dominant taxa correlated well with leaf magnetism, be it positive or negative. The results of this study indicate that an urban environment can greatly affect the local phyllosphere community composition. Although other urban-related factors cannot be ruled out, the relative abundance of most of the dominant taxa was significantly correlated with exposure to traffic-generated PM. |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
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Editor |
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Language |
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Wos |
000388543600033 |
Publication Date |
2016-10-15 |
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Series Editor |
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Series Title |
|
Abbreviated Series Title |
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Series Volume |
|
Series Issue |
|
Edition |
|
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ISSN |
1352-2310 |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
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Times cited |
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Open Access |
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Notes |
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Approved |
no |
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|
Call Number |
UA @ admin @ c:irua:136110 |
Serial |
8066 |
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Permanent link to this record |
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Author |
Bottari, F.; Moretto, L.M.; Ugo, P. |
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Title |
Impedimetric sensing of the immuno-enzymatic reaction of gliadin with a collagen-modified electrode |
Type |
A1 Journal article |
|
Year |
2018 |
Publication |
Electrochemistry communications |
Abbreviated Journal |
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|
Volume |
97 |
Issue |
|
Pages |
51-55 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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|
Abstract |
This paper presents a previously unexplored biosensing strategy for detecting gliadin which exploits the crosslinking of gliadin with collagen, catalyzed by transglutaminase at the interfacial electron transfer rate, on a modified electrode. The process is monitored by electrochemical impedance spectroscopy using a glassy carbon electrode coated with a collagen layer. To validate the specificity of the response as well as to eliminate possible interferences from other proteins, such as soy protein or casein, the captured gliadin is further reacted with a specific anti-gliadin antibody. Changes in charge transfer resistance, measured from the Nyquist plots, scale linearly with the gliadin concentration in the range 5-20 mg/L, a range suitable for testing the gliadin concentration in gluten-free food commodities. |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
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Editor |
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Language |
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Wos |
000451326800011 |
Publication Date |
2018-10-10 |
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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 |
1388-2481; 1873-1902 |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
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Times cited |
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Open Access |
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Notes |
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Approved |
no |
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|
Call Number |
UA @ admin @ c:irua:156285 |
Serial |
8067 |
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Permanent link to this record |
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Author |
Schaubroeck, T.; De Clippeleir, H.; Weissenbacher, N.; Dewulf, J.; Boeckx, P.; Vlaeminck, S.E.; Wett, B. |
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Title |
The importance of resource recovery for the environmental sustainability of an energy self-sufficient sewage treatment plant |
Type |
P3 Proceeding |
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Year |
2015 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
3 p.
T2 - IWA Resource Recovery Conference, 30 Aug |
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Keywords |
P3 Proceeding; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
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Address |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
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Language |
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Wos |
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Publication Date |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
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ISBN |
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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 |
|
|
Call Number |
UA @ admin @ c:irua:151141 |
Serial |
8068 |
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Permanent link to this record |
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Author |
Pinera, I.; Cruz, C.M.; Leyva, A.; Abreu, Y.; Cabal, A.E.; van Espen, P.; Van Remortel, N. |
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Title |
Improved calculation of displacements per atom cross section in solids by gamma and electron irradiation |
Type |
A1 Journal article |
|
Year |
2014 |
Publication |
Interactions With Materials And Atoms |
Abbreviated Journal |
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Volume |
339 |
Issue |
|
Pages |
1-7 |
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Keywords |
A1 Journal article; Engineering sciences. Technology; Particle Physics Group; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
|
|
Abstract |
Several authors had estimated the displacements per atom cross sections under different approximations and models, including most of the main gamma- and electron-material interaction processes. These previous works used numerical approximation formulas which are applicable for limited energy ranges. We proposed the Monte Carlo assisted Classical Method (MCCM), which relates the established theories about atom displacements to the electron and positron secondary fluence distributions calculated from the Monte Carlo simulation. In this study the MCCM procedure is adapted in order to estimate the displacements per atom cross sections for gamma and electron irradiation. The results obtained through this procedure are compared with previous theoretical calculations. An improvement in about 10-90% for the gamma irradiation induced dpa cross section is observed in our results on regard to the previous evaluations for the studied incident energies. On the other hand, the dpa cross section values produced by irradiation with electrons are improved by our calculations in about 5-50% when compared with the theoretical approximations. When thin samples are irradiated with electrons, more precise results are obtained through the MCCM (in about 20-70%) with respect to the previous studies. (C) 2014 Elsevier B.V. All rights reserved. |
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Address |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
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Editor |
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Language |
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Wos |
000343785500001 |
Publication Date |
2014-09-15 |
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Series Editor |
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Series Title |
|
Abbreviated Series Title |
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Series Volume |
|
Series Issue |
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Edition |
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ISSN |
0168-583x |
ISBN |
|
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 |
|
Approved |
no |
|
|
Call Number |
UA @ admin @ c:irua:121161 |
Serial |
8069 |
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Permanent link to this record |
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|
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Author |
Schalm, O.; Cabal, A.; van Espen, P.; Laquière, N.; Storme, P. |
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|
Title |
Improved radiographic methods for the investigation of paintings using laboratory and synchrotron X-ray sources |
Type |
A1 Journal article |
|
Year |
2011 |
Publication |
Journal of analytical atomic spectrometry |
Abbreviated Journal |
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Volume |
26 |
Issue |
5 |
Pages |
1068-1077 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
It is generally known that radiographic inspection of 1517th century paintings can easily be done with a polychromatic X-ray source using a voltage between 20 kV and 40 kV in combination with classic X-ray films. Unfortunately, the spatial structure of numerous 19th and early 20th century paintings cannot be visualized with conventional radiography due to several reasons such as the use of lead white grounds or low absorbing pigments. Radiographic images are blurred or worse, they do not contain the picture of the painting. During the last decades, many technological innovations have been introduced in the field of radiography but their possibilities in cultural heritage have not been explored in full detail. In our investigation we used phosphor imaging plates, energy dispersive detectors and CCD-cameras in combination with synchrotron radiation and conventional X-ray tubes in order to improve the quality of radiographic images. Several promising techniques that could improve the quality of radiographs of paintings were identified. |
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Wos |
000289731900023 |
Publication Date |
2011-04-11 |
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Edition |
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ISSN |
0267-9477 |
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UA library record; WoS full record; WoS citing articles |
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Open Access |
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no |
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Call Number |
UA @ admin @ c:irua:89928 |
Serial |
8070 |
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Permanent link to this record |
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Author |
Christis, M.; Geerken, T.; Vercalsteren, A.; Vrancken, K.C.M. |
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Title |
Improving footprint calculations of small open economies : combining local with multi-regional input-output tables |
Type |
A1 Journal article |
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Year |
2017 |
Publication |
Economic systems research |
Abbreviated Journal |
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Volume |
29 |
Issue |
1 |
Pages |
25-47 |
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Keywords |
A1 Journal article; Economics; Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
In a small, open and resource-poor economy, import and export dependency have an ever-growing impact on local policy decisions, which makes local (environmental) policy-makers increasingly depend on global data. This increases the interest in models that link local production and consumption data to global production, trade and environmental data. The recent increase in availability of global environmentally extended multi-regional input-output tables (EE-MRIO tables) provides an opportunity to link them with existing local environmentally extended input-output tables (EE-RIO tables). These combined tables make it possible (1) to analyse the links between local and global production and consumption and (2) to study global value chains, material use and environmental impacts simultaneously. However, estimations using input-output (I-O) analyses contain errors due to imperfect databases. In this article the magnitude of specification, aggregation and time errors are estimated and compared. The results show the need to combine local datasets with multi-regional ones and show that highest detailed (country and sector levels) as well as time series of I-O tables are the way forward for using I-O analyses in local policy-making. The paper provides guidance on trading off investments in model adoption and/or extension and the reliability of estimation results. |
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Wos |
000395062800002 |
Publication Date |
2016-11-01 |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0953-5314 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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no |
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Call Number |
UA @ admin @ c:irua:142012 |
Serial |
8071 |
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Permanent link to this record |
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Author |
Sfez, S.; De Meester, S.; Vlaeminck, S.E.; Dewulf, J. |
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Title |
Improving the resource footprint evaluation of products recovered from wastewater : a discussion on appropriate allocation in the context of circular economy |
Type |
A1 Journal article |
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Year |
2019 |
Publication |
Resources, conservation and recycling |
Abbreviated Journal |
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Volume |
148 |
Issue |
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Pages |
132-144 |
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Keywords |
A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
Shifting from a linear to a circular economy has consequences on how the sustainability of products is assessed. This is the case for products recovered from resources such as sewage sludge. The “zero-burden” assumption is commonly used in Life Cycle Assessment and considers that waste streams are burden-free, which becomes debatable when comparing waste-based with virgin material-based products in the context of the growing circular economy. If waste streams are considered as resources rather than waste, upstream burdens should be partly allocated to all products to allow a fair comparison with their virgin material-based equivalents. In this paper, five allocation approaches are applied to allocate the resource use of upstream processes (consumer goods production) to products recovered from the processing of sewage sludge in the Netherlands, which produces biogas, (phosphorus-based) chemicals and building materials. Except for the approach which allocates 100% of the impact from resource recovery processes to the preceding consumer goods, the allocation approaches show a resource use 27 to 80% higher than with the “zero-burden” assumption. In this particular case, using these allocation approaches is likely to find little support from recyclers. The producers of household products, recyclers and policy makers should find a consensus to consider the shift from a linear to a circular economy in sustainability assessment studies while avoiding discouraging the implementation of recovery technologies. This paper suggests starting the discussion with the approach which allocates the impacts from upstream processes degressively to the downstream products as it best translates the industrial ecology principles. |
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Wos |
000472242800012 |
Publication Date |
2019-05-28 |
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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 |
0921-3449 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Open Access |
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Notes |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:159887 |
Serial |
8072 |
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Permanent link to this record |
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Author |
Spooren, J.; Kim, E.; Horckmans, L.; Broos, K.; Nielsen, P.; Quaghebeur, M. |
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Title |
In-situ chromium and vanadium recovery of landfilled ferrochromium and stainless steel slags |
Type |
A1 Journal article |
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Year |
2016 |
Publication |
Chemical engineering journal |
Abbreviated Journal |
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Volume |
303 |
Issue |
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Pages |
359-368 |
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Keywords |
A1 Journal article; Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
A novel heap leaching method was investigated for selective removal of chromium (Cr) and-vanadium (V) from ferrochromium (FeCr) and stainless steel (SS) slags. In particular, alkaline oxidative heap leaching was simulated on lab-scale by batch and column leaching tests. The results show a selective leaching of Cr (11-19%) and V (7.0-7.5%) after 64 days of column leaching, with a very low dissolution (<2.2% (FeCr slag) and <0.15% (SS slag)) of matrix elements (e.g. Al, Fe, Si, Mg, Ca), when NaOCl is applied as oxidation agent and NaOH as alkaline agent. Furthermore, the used leaching liquor is reactive for a longer period of time, indicating that circulation of leaching liquor could be possible. Finally, the experimental results were fed into a first-order model which predicts that Cr will continue to leach from the tested slags for 4-5 years at a chosen infiltration rate of 73,000 l/(y m(2)). (C) 2016 Elsevier B.V. All rights reserved. |
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Wos |
000383522800036 |
Publication Date |
2016-05-27 |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
1385-8947; 1873-3212 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Notes |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:137104 |
Serial |
8074 |
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Permanent link to this record |
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Author |
Samaee, V. |
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Title |
In-situ transmission electron microscopic nanomechanical investigations of Ni |
Type |
Doctoral thesis |
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Year |
2018 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
172 p. |
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Keywords |
Doctoral thesis; Electron microscopy for materials research (EMAT) |
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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 |
UA @ admin @ c:irua:156143 |
Serial |
8075 |
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Permanent link to this record |