| |
Records |
Links |
|
Author |
Van Tendeloo, G.; Hervieu, M.; Chaillout, C. |
|
| |
Title |
Defect structure of Hg-based ceramic superconductors (invited) |
Type |
P1 Proceeding |
| |
Year |
1994 |
Publication  |
Sciences |
Abbreviated Journal |
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|
| |
Volume |
|
Issue |
|
Pages |
949-952 |
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| |
Keywords |
P1 Proceeding; Electron microscopy for materials research (EMAT) |
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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 |
Editions physique |
Place of Publication |
Les ulis |
Editor |
|
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| |
Language |
|
Wos |
A1994BE09Y00462 |
Publication Date |
0000-00-00 |
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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 |
2-86883-226-1 |
ISBN |
|
Additional Links |
UA library record; WoS full record; |
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| |
Impact Factor |
|
Times cited |
|
Open Access |
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| |
Notes |
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Approved |
no |
|
| |
Call Number |
UA @ lucian @ c:irua:95940 |
Serial |
621 |
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| Permanent link to this record |
| |
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| |
|
Author |
Bernaerts, D.; Zhang, X.; Zhang, X.; Van Tendeloo, G.; Vanlanduyt, J.; Amelinckx, S. |
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| |
Title |
HREM study of Rb6C60 and helical shaped carbon nanotubules |
Type |
P1 Proceeding |
| |
Year |
1994 |
Publication |
Sciences |
Abbreviated Journal |
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|
| |
Volume |
|
Issue |
|
Pages |
305-306 |
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| |
Keywords |
P1 Proceeding; Electron microscopy for materials research (EMAT) |
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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 |
Editions physique |
Place of Publication |
Les ulis |
Editor |
|
|
| |
Language |
|
Wos |
A1994BE09Y00147 |
Publication Date |
0000-00-00 |
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| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
2-86883-226-1 |
ISBN |
|
Additional Links |
UA library record; WoS full 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 |
COMPUTER SCIENCE, INTERDISCIPLINARY 11/104 Q1 # PHYSICS, MATHEMATICAL 1/53 Q1 # |
|
| |
Call Number |
UA @ lucian @ c:irua:95938 |
Serial |
1512 |
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| Permanent link to this record |
| |
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| |
|
Author |
Kandemir, A.; Ozden, A.; Cagin, T.; Sevik, C. |
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| |
Title |
Thermal conductivity engineering of bulk and one-dimensional Si-Ge nanoarchitectures |
Type |
A1 Journal article |
| |
Year |
2017 |
Publication |
Science and technology of advanced materials |
Abbreviated Journal |
|
|
| |
Volume |
18 |
Issue |
1 |
Pages |
187-196 |
|
| |
Keywords |
A1 Journal article; Condensed Matter Theory (CMT) |
|
| |
Abstract |
Various theoretical and experimental methods are utilized to investigate the thermal conductivity of nanostructured materials; this is a critical parameter to increase performance of thermoelectric devices. Among these methods, equilibrium molecular dynamics (EMD) is an accurate technique to predict lattice thermal conductivity. In this study, by means of systematic EMD simulations, thermal conductivity of bulk Si-Ge structures (pristine, alloy and superlattice) and their nanostructured one dimensional forms with square and circular cross-section geometries (asymmetric and symmetric) are calculated for different crystallographic directions. A comprehensive temperature analysis is evaluated for selected structures as well. The results show that one-dimensional structures are superior candidates in terms of their low lattice thermal conductivity and thermal conductivity tunability by nanostructuring, such as by diameter modulation, interface roughness, periodicity and number of interfaces. We find that thermal conductivity decreases with smaller diameters or cross section areas. Furthermore, interface roughness decreases thermal conductivity with a profound impact. Moreover, we predicted that there is a specific periodicity that gives minimum thermal conductivity in symmetric superlattice structures. The decreasing thermal conductivity is due to the reducing phonon movement in the system due to the effect of the number of interfaces that determine regimes of ballistic and wave transport phenomena. In some nanostructures, such as nanowire superlattices, thermal conductivity of the Si/Ge system can be reduced to nearly twice that of an amorphous silicon thermal conductivity. Additionally, it is found that one crystal orientation, <100>, is better than the <111> crystal orientation in one-dimensional and bulk SiGe systems. Our results clearly point out the importance of lattice thermal conductivity engineering in bulk and nanostructures to produce high-performance thermoelectric materials. |
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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 |
000405949800001 |
Publication Date |
2017-03-13 |
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| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
1468-6996; 1878-5514 |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
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| |
Impact Factor |
|
Times cited |
|
Open Access |
|
|
| |
Notes |
|
Approved |
no |
|
| |
Call Number |
UA @ admin @ c:irua:193772 |
Serial |
8662 |
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| Permanent link to this record |
| |
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| |
|
Author |
De Meyer, S.; Vanmeert, F.; Vertongen, R.; Van Loon, A.; Gonzalez, V.; Delaney, J.; Dooley, K.; Dik, J.; van der Snickt, G.; Vandivere, A.; Janssens, K. |
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| |
Title |
Macroscopic x-ray powder diffraction imaging reveals Vermeer's discriminating use of lead white pigments in Girl with a Pearl Earring |
Type |
A1 Journal article |
| |
Year |
2019 |
Publication |
Science Advances |
Abbreviated Journal |
|
|
| |
Volume |
5 |
Issue |
8 |
Pages |
eaax1975 |
|
| |
Keywords |
A1 Journal article; Engineering sciences. Technology; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Antwerp Cultural Heritage Sciences (ARCHES) |
|
| |
Abstract |
Until the 19th century, lead white was the most important white pigment used in oil paintings. Lead white is typically composed of two crystalline lead carbonates: hydrocerussite [2PbCO(3)center dot Pb(OH)(2)] and cerussite (PbCO3). Depending on the ratio between hydrocerussite and cerussite, lead white can be classified into different subtypes, each with different optical properties. Current methods to investigate and differentiate between lead white subtypes involve invasive sampling on a microscopic scale, introducing problems of paint damage and representativeness. In this study, a 17th century painting Girl with a Pearl Earring (by Johannes Vermeer, c. 1665, collection of the Mauritshuis, NL) was analyzed with a recently developed mobile and noninvasive macroscopic x-ray powder diffraction (MA-XRPD) scanner within the project Girl in the Spotlight. Four different subtypes of lead white were identified using XRPD imaging at the macroscopic and microscopic scale, implying that Vermeer was highly discriminatory in his use of lead white. |
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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 |
|
Wos |
000491121200021 |
Publication Date |
2019-08-30 |
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| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
2375-2548 |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
| |
Impact Factor |
|
Times cited |
3 |
Open Access |
|
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| |
Notes |
; K.J. wishes to thank the Research Council of the University of Antwerp for financial support through GOA project SolarPaint. Also, FWO, Brussels is acknowledged for financial support through grants G056619N and G054719N. The support of InterReg programme Smart*Light is appreciated. ; |
Approved |
Most recent IF: NA |
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| |
Call Number |
UA @ admin @ c:irua:163815 |
Serial |
5700 |
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| Permanent link to this record |
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| |
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Author |
Wang, Z.; Wang, Y.B.; Yin, J.; Tovari, E.; Yang, Y.; Lin, L.; Holwill, M.; Birkbeck, J.; Perello, D.J.; Xu, S.; Zultak, J.; Gorbachev, R.V.; Kretinin, A.V.; Taniguchi, T.; Watanabe, K.; Morozov, S.V.; Andelkovic, M.; Milovanović, S.P.; Covaci, L.; Peeters, F.M.; Mishchenko, A.; Geim, A.K.; Novoselov, K.S.; Fal'ko, V.I.; Knothe, A.; Woods, C.R. |
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| |
Title |
Composite super-moiré lattices in double-aligned graphene heterostructures = Composite super-moire lattices in double-aligned graphene heterostructures |
Type |
A1 Journal article |
| |
Year |
2019 |
Publication |
Science Advances |
Abbreviated Journal |
|
|
| |
Volume |
5 |
Issue |
12 |
Pages |
eaay8897 |
|
| |
Keywords |
A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT); Condensed Matter Theory (CMT) |
|
| |
Abstract |
When two-dimensional (2D) atomic crystals are brought into close proximity to form a van der Waals heterostructure, neighbouring crystals may influence each other's properties. Of particular interest is when the two crystals closely match and a moire pattern forms, resulting in modified electronic and excitonic spectra, crystal reconstruction, and more. Thus, moire patterns are a viable tool for controlling the properties of 2D materials. However, the difference in periodicity of the two crystals limits the reconstruction and, thus, is a barrier to the low-energy regime. Here, we present a route to spectrum reconstruction at all energies. By using graphene which is aligned to two hexagonal boron nitride layers, one can make electrons scatter in the differential moire pattern which results in spectral changes at arbitrarily low energies. Further, we demonstrate that the strength of this potential relies crucially on the atomic reconstruction of graphene within the differential moire super cell. |
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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 |
|
Wos |
000505069600089 |
Publication Date |
2019-12-21 |
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| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
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| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
2375-2548 |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
| |
Impact Factor |
|
Times cited |
71 |
Open Access |
|
|
| |
Notes |
|
Approved |
Most recent IF: NA |
|
| |
Call Number |
UA @ admin @ c:irua:165754 |
Serial |
6289 |
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| Permanent link to this record |
| |
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| |
|
Author |
Dubrovinskaia, N.; Dubrovinsky, L.; Solopova, N.A.; Abakumov, A.; Turner, S.; Hanfland, M.; Bykova, E.; Bykov, M.; Prescher, C.; Prakapenka, V.B.; Petitgirard, S.; Chuvashova, I.; Gasharova, B.; Mathis, Y.-L.; Ershov, P.; Snigireva, I.; Snigirev, A. |
|
| |
Title |
Terapascal static pressure generation with ultrahigh yield strength nanodiamond |
Type |
A1 Journal article |
| |
Year |
2016 |
Publication |
Science Advances |
Abbreviated Journal |
|
|
| |
Volume |
2 |
Issue |
7 |
Pages |
e1600341-12 |
|
| |
Keywords |
A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) |
|
| |
Abstract |
Studies of materials' properties at high and ultrahigh pressures lead to discoveries of unique physical and chemical phenomena and a deeper understanding of matter. In high-pressure research, an achievable static pressure limit is imposed by the strength of available strong materials and design of high-pressure devices. Using a high-pressure and high-temperature technique, we synthesized optically transparent microballs of bulk nanocrystalline diamond, which were found to have an exceptional yield strength (similar to 460 GPa at a confining pressure of similar to 70 GPa) due to the unique microstructure of bulk nanocrystalline diamond. We used the nanodiamond balls in a double-stage diamond anvil cell high-pressure device that allowed us to generate static pressures beyond 1 TPa, as demonstrated by synchrotron x-ray diffraction. Outstanding mechanical properties (strain-dependent elasticity, very high hardness, and unprecedented yield strength) make the nanodiamond balls a unique device for ultrahigh static pressure generation. Structurally isotropic, homogeneous, and made of a low-Z material, they are promising in the field of x-ray optical applications. |
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| |
Address |
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Corporate Author |
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Thesis |
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Publisher |
|
Place of Publication |
|
Editor |
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| |
Language |
|
Wos |
000381805300029 |
Publication Date |
2016-07-21 |
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| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
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| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
2375-2548 |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
| |
Impact Factor |
|
Times cited |
|
Open Access |
|
|
| |
Notes |
|
Approved |
no |
|
| |
Call Number |
UA @ admin @ c:irua:190527 |
Serial |
8647 |
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| Permanent link to this record |
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| |
|
Author |
Andreae, M.O.; Charlson, R.J.; Bruynseels, F.; Storms, H.; Van Grieken, R.; Maenhaut, W. |
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| |
Title |
Internal mixture of sea salt, silicates, and excess sulfate in marine aerosols |
Type |
A1 Journal article |
| |
Year |
1986 |
Publication |
Science |
Abbreviated Journal |
|
|
| |
Volume |
232 |
Issue |
4758 |
Pages |
1620-1623 |
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| |
Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
|
| |
Abstract |
Individual aerosol particles from the remote marine atmosphere were investigated by scanning electron microscopy and electron microprobe analysis. A large fraction of the silicate mineral component of the aerosol was found to be internally mixed with sea-salt aerosol particles. This observation explains the unexpected similarity in the size distributions of silicates and sea salt that has been observed in remote marine aerosols. Reentrainment of dust particles previously deposited onto the sea surface and collision between aerosol particles can be excluded as possible source mechanisms for these internally mixed aerosols. The internal mixing could be produced by processes within clouds, including droplet coalescence. Cloud processes may also be responsible for the observed enrichment of excess (nonsea-salt) sulfate on sea-salt particles. |
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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 |
A1986C826900027 |
Publication Date |
2006-10-05 |
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| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
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| |
Series Volume |
|
Series Issue |
|
Edition |
|
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| |
ISSN |
0036-8075; 1095-9203 |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
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| |
Impact Factor |
|
Times cited |
|
Open Access |
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| |
Notes |
|
Approved |
no |
|
| |
Call Number |
UA @ admin @ c:irua:113613 |
Serial |
8116 |
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| Permanent link to this record |
| |
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| |
|
Author |
Eeckhaoudt, S.; van Vaeck, L.; Gijbels, R.; van Grieken, R.E. |
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| |
Title |
Laser microprobe mass spectrometry in biology and biomedicine |
Type |
A1 Journal article |
| |
Year |
1994 |
Publication |
Scanning microscopy |
Abbreviated Journal |
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| |
Volume |
S8 |
Issue |
|
Pages |
335-358 |
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| |
Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT); AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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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 |
|
Place of Publication |
Chicago, Ill. |
Editor |
|
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| |
Language |
|
Wos |
|
Publication Date |
0000-00-00 |
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| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
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| |
Series Volume |
|
Series Issue |
|
Edition |
|
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| |
ISSN |
0891-7035 |
ISBN |
|
Additional Links |
UA library record |
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| |
Impact Factor |
|
Times cited |
|
Open Access |
|
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| |
Notes |
|
Approved |
no |
|
| |
Call Number |
UA @ lucian @ c:irua:9531 |
Serial |
1794 |
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| Permanent link to this record |
| |
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| |
|
Author |
Wu, S.; van Daele, A.; Jacob, W.; Gijbels, R.; Verbeeck, A.; de Keyzer, R. |
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| |
Title |
Microanalysis of individual silver halide microcrystals |
Type |
A1 Journal article |
| |
Year |
1993 |
Publication |
Scanning microscopy |
Abbreviated Journal |
|
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| |
Volume |
7 |
Issue |
|
Pages |
17-24 |
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| |
Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
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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 |
|
Place of Publication |
Chicago, Ill. |
Editor |
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| |
Language |
|
Wos |
A1993LA65400003 |
Publication Date |
0000-00-00 |
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Series Editor |
|
Series Title |
|
Abbreviated Series Title |
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| |
Series Volume |
|
Series Issue |
|
Edition |
|
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| |
ISSN |
0891-7035 |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
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| |
Impact Factor |
|
Times cited |
7 |
Open Access |
|
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| |
Notes |
|
Approved |
PHYSICS, CONDENSED MATTER 16/67 Q1 # |
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| |
Call Number |
UA @ lucian @ c:irua:6143 |
Serial |
2024 |
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| Permanent link to this record |
| |
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| |
|
Author |
Geuens, I.; Nys, B.; Naudts, J.; Gijbels, R.; Jacob, W.; van Espen, P. |
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| |
Title |
The primary energy dependence of backscattered electron images up to 100 keV |
Type |
A1 Journal article |
| |
Year |
1991 |
Publication |
Scanning microscopy |
Abbreviated Journal |
|
|
| |
Volume |
5 |
Issue |
2 |
Pages |
339-344 |
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| |
Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT); Chemometrics (Mitac 3) |
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| |
Abstract |
|
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| |
Address |
|
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| |
Corporate Author |
|
Thesis |
|
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| |
Publisher |
|
Place of Publication |
Chicago, Ill. |
Editor |
|
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| |
Language |
|
Wos |
A1991GC67000005 |
Publication Date |
0000-00-00 |
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| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
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| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
0891-7035 |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
| |
Impact Factor |
|
Times cited |
3 |
Open Access |
|
|
| |
Notes |
|
Approved |
no |
|
| |
Call Number |
UA @ lucian @ c:irua:709 |
Serial |
2713 |
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| Permanent link to this record |
| |
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| |
|
Author |
Vertes, A.; Gijbels, R. |
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| |
Title |
Restricted energy transfer in laser desorption of high molecular weight biomolecules |
Type |
A1 Journal article |
| |
Year |
1991 |
Publication |
Scanning microscopy |
Abbreviated Journal |
|
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| |
Volume |
5 |
Issue |
|
Pages |
317-328 |
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| |
Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
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| |
Abstract |
|
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| |
Address |
|
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| |
Corporate Author |
|
Thesis |
|
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| |
Publisher |
|
Place of Publication |
Chicago, Ill. |
Editor |
|
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| |
Language |
|
Wos |
A1991GC67000003 |
Publication Date |
0000-00-00 |
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| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
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| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
0891-7035 |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
| |
Impact Factor |
|
Times cited |
11 |
Open Access |
|
|
| |
Notes |
|
Approved |
INSTRUMENTS & INSTRUMENTATION 31/56 Q3 # NUCLEAR SCIENCE & TECHNOLOGY 9/32 Q2 # PHYSICS, PARTICLES & FIELDS 24/28 Q4 # SPECTROSCOPY 28/43 Q3 # |
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| |
Call Number |
UA @ lucian @ c:irua:705 |
Serial |
2899 |
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| Permanent link to this record |
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| |
|
Author |
Leysen, L.A.; De Waele, J.K.; Roekens, E.J.; Van Grieken, R.E. |
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| |
Title |
Electron probe micro-analysis and laser microprobe mass analysis of material, leached from a limestone cathedral |
Type |
A1 Journal article |
| |
Year |
1987 |
Publication |
Scanning microscopy |
Abbreviated Journal |
|
|
| |
Volume |
1 |
Issue |
|
Pages |
1617-1630 |
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| |
Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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| |
Abstract |
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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 |
|
Wos |
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Publication Date |
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| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
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| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
0891-7035 |
ISBN |
|
Additional Links |
UA library record |
|
| |
Impact Factor |
|
Times cited |
|
Open Access |
|
|
| |
Notes |
|
Approved |
no |
|
| |
Call Number |
UA @ admin @ c:irua:116794 |
Serial |
7872 |
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| Permanent link to this record |
| |
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| |
|
Author |
Grubova, I.Y.; Surmeneva, M.A.; Surmenev, R.A.; Neyts, E.C. |
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| |
Title |
Effect of van der Waals interactions on the adhesion strength at the interface of the hydroxyapatite-titanium biocomposite : a first-principles study |
Type |
A1 Journal article |
| |
Year |
2020 |
Publication |
RSC advances |
Abbreviated Journal |
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|
| |
Volume |
10 |
Issue |
62 |
Pages |
37800-37805 |
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Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
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Abstract |
Hydroxyapatite (HAP) is frequently used as biocompatible coating on Ti-based implants. In this context, the HAP-Ti adhesion is of crucial importance. Here, we report ab initio calculations to investigate the influence of Si incorporation into the amorphous calcium-phosphate (a-HAP) structure on the interfacial bonding mechanism between the a-HAP coating and an amorphous titanium dioxide (a-TiO2) substrate, contrasting two different density functionals: PBE-GGA, and DFT-D3, which are capable of describing the influence of the van der Waals (vdW) interactions. In particular, we discuss the effect of dispersion on the work of adhesion (W-ad), equilibrium geometries, and charge density difference (CDD). We find that replacement of P by Si in a-HAP (a-Si-HAP) with the creation of OH vacancies as charge compensation results in a significant increase in the bond strength between the coating and substrate in the case of using the PBE-GGA functional. However, including the vdW interactions shows that these forces considerably contribute to the W-ad. We show that the difference (W-ad – W-ad(vdW)) is on average more than 1.1 J m(-2) and 0.5 J m(-2) for a-HAP/a-TiO2 and a-Si-HAP/a-TiO2, respectively. These results reveal that including vdW interactions is essential for accurately describing the chemical bonding at the a-HAP/a-TiO2 interface. |
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Wos |
000583523300025 |
Publication Date |
2020-10-14 |
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UA library record; WoS full record; WoS citing articles |
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Notes |
; The authors gratefully acknowledge financial support from the Russian president's grant MK-330.2020.8 and BOF Fellowships for International Joint PhD students funded by University of Antwerp (UAntwerp, project number 32545). The work was carried out at Tomsk Polytechnic University within the framework of Tomsk Polytechnic University Competitiveness Enhancement Program grant and in part using the Turing HPC infrastructure of the CalcUA core facility of the UAntwerp, a division of the Flemish Supercomputer Centre (VSC), funded by the Hercules Foundation, the Flemish Government (department EWI) and the UAntwerp, Belgium. ; |
Approved |
Most recent IF: NA |
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| |
Call Number |
UA @ admin @ c:irua:173603 |
Serial |
6499 |
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| Permanent link to this record |
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Author |
Satyawali, Y.; Van Roy, S.; Roevens, A.; Meynen, V.; Mullens, S.; Jochems, P.; Doyen, W.; Cauwenberghs, L.; Dejonghe, W. |
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| |
Title |
Characterization and analysis of the adsorption immobilization mechanism of \beta-galactosidase on metal oxide powders |
Type |
A1 Journal article |
| |
Year |
2013 |
Publication |
RSC advances |
Abbreviated Journal |
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|
| |
Volume |
3 |
Issue |
46 |
Pages |
24054-24062 |
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| |
Keywords |
A1 Journal article; Laboratory of adsorption and catalysis (LADCA); Sustainable Energy, Air and Water Technology (DuEL) |
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| |
Abstract |
Immobilization of the enzymes plays a vital role in enhancing their applicability in a wide range of applications, thus ensuring the use of sustainable enzymatic processes over the conventional chemical processes on an industrial scale. This study provides the background information for the selection and screening of inorganic metal oxide (MO) powders for their use as fillers in mixed matrix membranes for enzyme immobilization as the future aim. A total of 13 MOs, ranging in size from 0.01 μm to <5 μm, were tested for their performance as a support for enzyme (β-galactosidase) immobilization via adsorption. Alumina appeared to be the best performing MO with the amount and activity of the immobilized enzyme being 64 mg g−1 and up to 288 U g−1, respectively. The amount of immobilized enzyme on alumina (α-Al2O3 C and γ-Al2O3) was >3 times higher than ZrO2 (used as a reference MO in this study). Upon heat treatment at 900 °C, up to 15%, 52% and 42% decline was observed in the amount of immobilized enzyme in case of alumina metal oxides (MOs), ZrO2 and TiO2, respectively. The results suggested that both isoelectric point and surface area of the MO influence the immobilization. The most important observation in this study was that the bonding of the enzyme to the MO surface seems to be mediated by the bonding/interaction of the buffer to the enzyme. |
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Wos |
000326745100030 |
Publication Date |
2013-10-11 |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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ISSN |
2046-2069 |
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:111300 |
Serial |
7607 |
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| Permanent link to this record |
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Author |
Misseeuw, L.; Krajewska, A.; Pasternak, I.; Ciuk, T.; Strupinski, W.; Reekmans, G.; Adriaensens, P.; Geldof, D.; Geldof, D.; Van Vlierberghe, S.; Thienpont, H.; Dubruelf, P.; Vermeulen, N. |
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Title |
Optical-quality controllable wet-chemical doping of graphene through a uniform, transparent and low-roughness F4-TCNQ/MEK layer |
Type |
A1 Journal article |
| |
Year |
2016 |
Publication |
RSC advances |
Abbreviated Journal |
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| |
Volume |
|
Issue |
106 |
Pages |
104491-104501 |
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| |
Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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| |
Abstract |
Controllable chemical doping of graphene has already proven very useful for electronic applications, but when turning to optical and photonic applications, the additional requirement of having both a high transparency and a low surface roughness has, to our knowledge, not yet been fulfilled by any chemical dopant system reported so far. In this work, a new method that meets for the first time this opticalquality requirement while also providing efficient, controllable doping is presented. The method relies on F4-TCNQ dissolved in methyl ethyl ketone (MEK) yielding a uniform deposition after spin coating because of an extraordinary charge transfer interaction between the F4-TCNQ and MEK molecules. The formed F4-TCNQ/MEK layer exhibits a very high surface quality and optical transparency over the visible-infrared wavelength range between 550 and 1900 nm. By varying the dopant concentration of F4-TCNQ from 2.5 to 40 mg ml1 MEK, the doping effect can be controlled between Dn ¼ +5.73 1012 cm2 and +1.09 1013 cm2 for initially strongly p-type hydrogen-intercalated graphene grown on 6Hsilicon- carbide substrates, and between Dn ¼ +5.56 1012 cm2 and +1.04 1013 cm2 for initially weakly p-type graphene transferred on silicon samples. This is the first time that truly optical-quality chemical doping of graphene is demonstrated, and the obtained doping values exceed those reported before for F4-TCNQ-based graphene doping by as much as 50%. |
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Wos |
000388111900075 |
Publication Date |
2016-10-27 |
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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 |
2046-2069 |
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:136405 |
Serial |
8335 |
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| Permanent link to this record |
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Author |
Kontozova, V.; Godoi, R.H.M.; Spolnik, Z.; Worobiec, A.; Deutsch, F.; Van Grieken, R. |
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Title |
Characterization of air pollutants observed in three European cathedrals: is the protective glazing really effective? |
Type |
A3 Journal article |
| |
Year |
2005 |
Publication |
Rivista della Stazione sperimentale del vetro |
Abbreviated Journal |
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Volume |
3 |
Issue |
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Pages |
13-20 |
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Keywords |
A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Laboratory Experimental Medicine and Pediatrics (LEMP) |
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Place of Publication |
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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 |
0391-4259 |
ISBN |
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Additional Links |
UA library record |
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Open Access |
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Notes |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:54920 |
Serial |
7615 |
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| Permanent link to this record |
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Author |
Pallot-Frossard, I.; Bernardi, A.; Van Grieken, R.; Rölleke, S.; Verità, M. |
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Title |
Main conclusions from VIDRIO EU research programme on the determination of conditions to prevent weathering of ancient stained glass windows and recommendations for end-users and practitioners |
Type |
A3 Journal article |
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Year |
2005 |
Publication |
Rivista della Stazione sperimentale del vetro |
Abbreviated Journal |
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Volume |
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Issue |
3 |
Pages |
75-83 |
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Keywords |
A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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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 |
0391-4259 |
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:55011 |
Serial |
8194 |
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| Permanent link to this record |
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Author |
Vaitkeviciute, J.; Chakir, R.; Van Passel, S. |
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Title |
Climate variable choice in Ricardian studies of European Agriculture |
Type |
A1 Journal article |
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Year |
2019 |
Publication |
Revue économique |
Abbreviated Journal |
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Volume |
70 |
Issue |
3 |
Pages |
375-401 |
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Keywords |
A1 Journal article; Economics; Engineering Management (ENM) |
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Abstract |
The Ricardian model has been employed frequently to study the impact of climate change on European agriculture. This paper contributes to this literature by using a panel data of FADN EU regions and the period 2004-2012 and by taking into account both individual heterogeneity as well as spatial autocorrelation among EU regions. We tested three hypotheses related to the degree days model. Our results show that climate outside the defined growing season matters for European agriculture, and excluding it could underestimate climate change impacts. Our results should support public policy decisions about efficient and effective mitigation and adaptation policy measures in EU agriculture. |
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Wos |
000469914100005 |
Publication Date |
2019-05-23 |
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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 |
0035-2764; 1950-6694 |
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Additional Links |
UA library record; WoS full record |
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Notes |
; We thank the two anonymous referees and the editors of the Revue economique for their useful comments which have helped us to improve the paper significantly. The usual disclaimers apply. The research leading to these results received funding from the European Union within the European Commission Seventh Framework Programme in the frame of RURAGRI ERA-NET under Grant Agreement 235175 TRUSTEE (ANR-13-RURA-0001-01) and from the Agence Nationale de la Recherche within STIMUL (Scenarios Towards integrating multi-scale land use tools) flagship project as part of the “Investissements d'Avenir” Programme (LabEx BASC; ANR-11-LABX-0034). This work was also supported by the metaprogramme Adaptation of Agriculture and Forest to Climate Change (AAFCC) of the French National Institute for Agricultural Research (INRA). Neither the French Agence Nationale de la Recherche nor the European Union or European Commission organization is accountable for the content of this research. The authors are solely responsible for any omissions or deficiencies. ; |
Approved |
Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:160346 |
Serial |
6167 |
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| Permanent link to this record |
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Author |
Robberecht, H.; Deelstra, H.; vanden Berghe, D.; Van Grieken, R. |
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Title |
Percentage selenium in consumed belgian feeding |
Type |
A1 Journal article |
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Year |
1982 |
Publication |
Revue des fermentations et des industries alimentaires |
Abbreviated Journal |
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Volume |
37 |
Issue |
6 |
Pages |
188-201 |
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Keywords |
A1 Journal article; Pharmacology. Therapy; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Wos |
A1982QX42300003 |
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Abbreviated Series Title |
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Edition |
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ISSN |
0035-2071 |
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:167192 |
Serial |
8369 |
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| Permanent link to this record |
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Author |
Robberecht, H.; Deelstra, H.; vanden Berghe, D.; Van Grieken, R. |
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Title |
Selenium gehalten van levensmiddelen geconsumeerd in België |
Type |
A3 Journal article |
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Year |
1983 |
Publication |
Revue des fermentations et des industries alimentaires |
Abbreviated Journal |
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Volume |
37 |
Issue |
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Pages |
188-201 |
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Keywords |
A3 Journal article; Pharmacology. Therapy; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Place of Publication |
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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 |
0035-2071 |
ISBN |
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Additional Links |
UA library record |
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Impact Factor |
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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:116701 |
Serial |
8507 |
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| Permanent link to this record |
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Author |
Ravindra, K.; Mittal, A.K.; Van Grieken, R. |
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Title |
Health risk assessment of urban suspended particulate matter with special reference to polycyclic aromatic hydrocarbons: a review |
Type |
A3 Journal article |
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Year |
2001 |
Publication |
Reviews on environmnetal health |
Abbreviated Journal |
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Volume |
16 |
Issue |
3 |
Pages |
169-189 |
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Keywords |
A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Edition |
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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 |
UA @ admin @ c:irua:36128 |
Serial |
8019 |
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| Permanent link to this record |
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Author |
Van 't dack, L.; Blommaert, W.; Vandelannoote, R.; Gijbels, R.; van Grieken, R. |
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Title |
Equilibrium constants for trace elements in natural waters |
Type |
A1 Journal article |
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Year |
1983 |
Publication |
Reviews in analytical chemistry |
Abbreviated Journal |
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Volume |
7 |
Issue |
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Pages |
297-401 |
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Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT); AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Place of Publication |
Tel Aviv |
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Publication Date |
0000-00-00 |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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ISSN |
0048-752x |
ISBN |
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Additional Links |
UA library record |
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Approved |
no |
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Call Number |
UA @ lucian @ c:irua:111446 |
Serial |
1078 |
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| Permanent link to this record |
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Author |
Markowicz, A.A.; Van Grieken, R.E. |
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Title |
X-ray spectrometry |
Type |
A1 Journal article |
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Year |
1984 |
Publication |
Reviews in analytical chemistry |
Abbreviated Journal |
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Volume |
56 |
Issue |
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Pages |
241r-250r |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0048-752x |
ISBN |
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Additional Links |
UA library record |
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Impact Factor |
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Notes |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:116709 |
Serial |
8782 |
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| Permanent link to this record |
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Author |
Coppens, J.; Meers, E.; Boon, N.; Buysse, J.; Vlaeminck, S.E. |
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Title |
Follow the N and P road : high-resolution nutrient flow analysis of the Flanders region as precursor for sustainable resource management |
Type |
A1 Journal article |
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Year |
2016 |
Publication |
Resources, conservation and recycling |
Abbreviated Journal |
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Volume |
115 |
Issue |
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Pages |
9-21 |
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Keywords |
A1 Journal article; Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
Resource-efficient nutrient management is key to secure food production in the context of a growing global population, rising resource scarcity and increasing pressure on the environment. To map the potential towards increasing nutrient use efficiencies and reduce environmental losses, a high-resolution insight of the nitrogen (N) and phosphorus (P) nutrient streams is pivotal. In this study, a substance flow analysis for N and P is presented for the nutrient intensive region of Flanders (6,211,065 inhabitants) in Belgium for the year 2009. A set of 160 nutrient fluxes was quantified throughout 21 economic and environmental compartments, with a particular focus on 10 waste management processes. A total nutrient load of 20 kg N cap(-1) yr(-1) (ca. 73% to the air and 28% to surface waters) and 0.53 kg P cap(-1) yr(-1) (to surface waters) is emitted to the environment; with crop and livestock production as the main contributors (49% of N and 36% of P). The food supply chain revealed a fertilizer-to-consumer efficiency of 14% for N as well as for P, with important losses embedded in waste streams such as excess manure. Advanced manure and waste processing facilities nevertheless offer the opportunity for enhanced nutrient recycling to increase the nutrient use efficiencies and reduce the dependency of inorganic fertilizers. (C) 2016 Elsevier B.V. All rights reserved. |
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Wos |
000384852500002 |
Publication Date |
2016-08-30 |
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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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Notes |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:137229 |
Serial |
7977 |
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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 |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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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:159887 |
Serial |
8072 |
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Author |
Voskamp, I.M.; Spiller, M.; Stremke, S.; Bregt, A.K.; Vreugdenhil, C.; Rijnaarts, H.H.M. |
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Title |
Space-time information analysis for resource-conscious urban planning and design : a stakeholder based identification of urban metabolism data gaps |
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A1 Journal article |
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Year |
2018 |
Publication |
Resources, conservation and recycling |
Abbreviated Journal |
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Volume |
128 |
Issue |
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Pages |
516-525 |
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Keywords |
A1 Journal article; Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
The research presented here examined at which spatial and temporal resolution urban metabolism should be analysed to generate results that are useful for implementation of urban planning and design interventions aiming at optimization of resource flows. Moreover, it was researched whether a lack of data currently hampers analysing resource flows at this desired level of detail. To facilitate a stakeholder based research approach, the SIRUP tool Space-time Information analysis for Resource-conscious Urban Planning was developed. The tool was applied in a case study of Amsterdam, focused on the investigation of energy and water flows. Results show that most urban planning and design interventions envisioned in Amsterdam require information on a higher spatiotemporal resolution than the resolution of current urban metabolism analyses, i.e., more detailed than the city level and at time steps smaller than a year. Energy-related interventions generally require information on a higher resolution than water-related interventions. Moreover, for the majority of interventions information is needed on a higher resolution than currently available. For energy, the temporal resolution of existing data proved inadequate, for water, data with both a higher spatial and temporal resolution is required. Modelling and monitoring techniques are advancing for both water and energy and these advancements are likely to contribute to closing these data gaps in the future. These advancements can also prove useful in developing new sorts of urban metabolism analyses that can provide a systemic understanding of urban resource flows and that are tailored to urban planning and design. |
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Wos |
000417658500051 |
Publication Date |
2016-09-13 |
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Abbreviated Series Title |
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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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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:143927 |
Serial |
8562 |
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Author |
Christis, M.; Geerken, T.; Vercalsteren, A.; Vrancken, K.C.M. |
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Title |
Value in sustainable materials management strategies for open economies case of Flanders (Belgium) |
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A1 Journal article |
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Year |
2015 |
Publication |
Resources, conservation and recycling |
Abbreviated Journal |
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Volume |
103 |
Issue |
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Pages |
110-124 |
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Keywords |
A1 Journal article; Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
Sustainable Materials Management (SMM) strategies, such as reuse, recycling and energy recovery aim, to capture more of the embedded resource or material value in products and waste streams. Reuse, recycling and energy recovery are existing activities in every society but they are poorly reflected in official statistics. Reaching higher levels of reuse, recycling and energy recovery may provide economic and environmental opportunities (i.e., in terms of GDP, jobs, reduced impacts), but not all options will have a net win-win-win property in practice, as they reduce the need for producing new commodities. In open economies, many primary resources, components and products are imported from abroad, and many goods produced are exported abroad. This paper describes a top-down methodology for estimating the substitution potential of intensifying specific SMM-strategies and material efficiency strategies. We combined both regional and multi-regional EE-IO (environmentally extended input-output) models to link industrial sectors to SMM-strategies. Our method enables us to compare the different SMM and material efficiency strategies in terms of the maximum available budgets for reaching them on a break even basis, maximum savings in global warming emissions and substituted employment effects, both through a regional and global perspective. We add a case on Flanders (Northern region in Belgium) to illustrate the methodology. Flanders is currently developing a policy for SMM. Selecting new regional actions for a Sustainable Materials Management policy can benefit from a good understanding of the international entangled value chains. It is important to understand how much of the chain is within reach of domestic policies and also to assess the consequences in terms of potential winners and losers, regarding GDP, jobs and environmental impacts, both domestically and abroad. We illustrated the potential outcomes for Flanders from four generic SMM-strategies: energy recovery, food waste prevention, recycling and reuse. From a strict regional self-interest perspective, it is preferable to substitute foreign value chains with local economic activities. Reuse creates by far the largest budget for new activities to realize the strategy (31.2% of Flemish GDP compared to 8.3% for food waste prevention, 6.2% for energy recovery and 4.2% for recycling). All four strategies have similar and significant potentials to reduce greenhouse gas emissions. However, food waste prevention and reuse have higher potentials to reduce Flemish territorial GHG-emissions. From a pure Flemish employment perspective, the energy recovery and recycling strategies could replace the fewest Flemish jobs, and from a global perspective, all strategies most likely imply losses of jobs abroad. (C) 2015 Elsevier B.V. All rights reserved. |
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Wos |
000362618600011 |
Publication Date |
2015-08-22 |
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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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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:128777 |
Serial |
8732 |
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Author |
Bruegelmans, P.; Horemans, B.; Hofkens, J.; Springael, D. |
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Title |
Response to mixed substrate feeds of the structure and activity of a linuron-degrading triple-species biofilm |
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A1 Journal article |
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Year |
2010 |
Publication |
Research in microbiology |
Abbreviated Journal |
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Volume |
161 |
Issue |
8 |
Pages |
660-666 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
We sought to determine whether the pesticide-degrading performance of a multi-species bacterial biofilm is affected by co-occurrence of multiple nutrient sources Thus, the 3-(3,4-dichlorophenyl)-l-methoxy-l-methyl urea (linuron)-degrading activity of a triple-species linuron-degrading consortium, cultivated in continuous flow biofilm systems, was monitored when exposed to mixed substrate feeds which contained, in addition to linuron, readily assimilated carbon (i e citrate and trypticase soy broth) and/or nitrogen (i e ammonium) sources The addition of alternative carbon sources at different concentrations resulted in diminished linuron degradation efficiency In addition, the efficiency of removal of the linuron metabolite 3,4-dichloroaniline was affected These effects might be attributed to catabolic repression of the linuron metabolic pathway in the presence of alternative carbon substrates Moreover, each nutrient condition resulted in a particular biofilm composition and a particular spatial and structural organization, which might also be related to the performance of the biofilm community Results show that the activity of pesticide-degrading biofilms strongly depends on prevailing nutrient conditions and that the ideal biofilm configuration and activity, as observed under selective conditions, does not exist in real-life environmental conditions where mixtures of substrates are often present (C) 2010 Elsevier Masson SAS All rights reserved. |
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Wos |
000283686200004 |
Publication Date |
2010-07-02 |
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Edition |
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ISSN |
0923-2508; 1769-7123 |
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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:91369 |
Serial |
8477 |
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Author |
Shi, X.; Ronsse, F.; Roegiers, J.; Pieters, J.G. |
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Title |
3D Eulerian-Eulerian modeling of a screw reactor for biomass thermochemical conversion. Part 1: solids flow dynamics and back-mixing |
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A1 Journal article |
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Year |
2019 |
Publication |
Renewable energy |
Abbreviated Journal |
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Volume |
143 |
Issue |
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Pages |
1465-1476 |
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Keywords |
A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
Three-dimensional (3D) computational fluid dynamics (CFD) simulations were performed to study solids flow dynamics and solids back-mixing behavior in a screw reactor (designed for thermal conversion of dry biomass particles) based on the Eulerian-Eulerian method. Simulation results were compared against experimental data with respect to filling degree and mean residence time of particles. The mean deviations for filling degree and for mean residence time between simulation and experiment were about 0.01 and 11.4 s, respectively, which shows that the model is reasonably accurate in predicting solids flow behavior in the screw reactor. The solids flow dynamics inside the reactor were discussed. The solids residence time distribution (RTD) was calculated and the degree of solids back-mixing in the forward transportation direction of the reactor was analyzed. It was found that solids being flung over the shaft and solids back-leakage, resulting from the low solids forward transportation velocity at the clearance between the flight and the bottom shell of the screw reactor, were responsible for solids back-mixing. The degree of solids back-mixing can be reduced at higher screw rotating speeds when keeping inlet mass flow rate of solids constant. (C) 2019 Elsevier Ltd. All rights reserved. |
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Wos |
000482686100039 |
Publication Date |
2019-05-28 |
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Series Issue |
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Edition |
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ISSN |
0960-1481 |
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:162757 |
Serial |
7384 |
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Author |
Buytaert, V.; Muys, B.; Devriendt, N.; Pelkmans, L.; Kretzschmar, J.G.; Samson, R. |
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Title |
Towards integrated sustainability assessment for energetic use of biomass : a state of the art evaluation of assessment tools |
Type |
A1 Journal article |
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Year |
2011 |
Publication |
Renewable and sustainable energy reviews |
Abbreviated Journal |
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Volume |
15 |
Issue |
8 |
Pages |
3918-3933 |
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Keywords |
A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
Biomass is expected to play an increasingly significant role in the greening of energy supply. Nevertheless, concerns are rising about the sustainability of large-scale energy crop production. Impacts must be assessed carefully before deciding whether and how this industry should be developed, and what technologies, policies and investment strategies should be pursued. There is need for a comprehensive and reliable sustainability assessment tool to evaluate the environmental, social and economic performance of biomass energy production. This paper paves the way for such a tool by analysing and comparing the performance and applicability of a selection of existing tools that are potentially useful for sustainability assessment of bioenergy systems. The selected tools are: Criteria And Indicators (C&I), Life Cycle Assessment (LCA), Environmental Impact Assessment (EIA), Cost Benefit Analysis (CBA), Exergy Analysis (EA) and System Perturbation Analysis (SPA). To evaluate the tools, a framework was constructed that consists of four evaluation levels: sustainability issues, tool attributes, model structure, area of application. The tools were then evaluated using literature data and with the help of a Delphi panel of experts. Finally, a statistical analysis was performed on the resulting data matrix to detect significant differences between tools. It becomes clear that none of the selected tools is able to perform a comprehensive sustainability assessment of bioenergy systems. Every tool has its particular advantages and disadvantages, which means that trade-offs are inevitable and a balance must be found between scientific accuracy and pragmatic decision making. A good definition of the assessment objective is therefore crucial. It seems an interesting option to create a toolbox that combines procedural parts of C&I and EIA, supplemented with calculation algorithms of LCA and CBA for respectively environmental and economic sustainability indicators. Nevertheless, this would require a more comprehensive interdisciplinary approach to align the different tool characteristics and focuses. |
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Wos |
000298764100043 |
Publication Date |
2011-08-06 |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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ISSN |
1364-0321; 1879-0690 |
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:96444 |
Serial |
8682 |
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