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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Florea, A.; De Jong, M.; De Wael, K. |
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Title |
Electrochemical strategies for the detection of forensic drugs |
Type |
A1 Journal article |
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Year |
2018 |
Publication |
Current opinion in electrochemistry |
Abbreviated Journal |
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Volume |
11 |
Issue |
11 |
Pages |
34-40 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
Illicit drugs consumption and trafficking is spread worldwide and remains an increasing challenge for local authorities. Forensic drugs and their metabolites are released into wastewaters due to human excretion after illegal consumption of drugs and occasionally due to disposal of clandestine laboratory wastes into sewage systems, being recently classified as the latest group of emerging pollutants. Hence, it is essential to have efficient and accurate methods to detect these type of compounds in seized street samples, biological fluids and wastewaters in order to reduce and prevent trafficking and consumption and negative effects on aquatic systems. Electrochemical strategies offer a fast, portable, low-cost and accurate alternative to chromatographic and spectrometric methods, for the analysis of forensic drugs and metabolites in different matrices. Recent electrochemical strategies applied to the detection of illicit drugs in wastewaters, biological fluids and street samples are presented in this review, together with the impact of drug consumption on the environment. |
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Wos |
000453710900007 |
Publication Date |
2018-07-21 |
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Edition |
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ISSN |
2451-9103; 2451-9111 |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Times cited |
7 |
Open Access |
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Notes |
; This project has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie Grant Agreement No. 753223 Narcoreader. The authors also acknowledge financial support from BELSPO, IOF-SBO and UAntwerp. ; |
Approved |
Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:152366 |
Serial |
5597 |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Flammia, L. |
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Title |
Emergent phenomena in nanostructured quantum-confined superconducting films |
Type |
Doctoral thesis |
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Year |
2018 |
Publication |
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Abbreviated Journal |
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Pages |
172 p. |
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Keywords |
Doctoral thesis; Condensed Matter Theory (CMT) |
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UA library record |
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Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:158197 |
Serial |
5208 |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Finizola e Silva, M.; Van Schoubroeck, S.; Cools, J.; Aboge, D.O.; Ouma, M.; Olweny, C.; Van Passel, S. |
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Title |
Local actors' perspectives on sustainable food value chains : evidence from a Q-methodology study in Kenya |
Type |
Administrative Services |
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Year |
2024 |
Publication |
Journal of Environmental Studies and Sciences |
Abbreviated Journal |
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Volume |
14 |
Issue |
1 |
Pages |
36-51 |
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Keywords |
Administrative Services; A1 Journal article; Engineering sciences. Technology; Engineering Management (ENM) |
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Abstract |
Governments and international organizations are increasingly determined to create more sustainable food value chains (SFVCs). However, only little empirical evidence is available on how SFVCs are understood. Enquiring African food value chain actors allows gathering valuable insights into their perception of sustainability, which characteristics of sustainable food value chains they prioritize, and which obstacles to a sustainable transformation they identify. By means of a Q-methodology involving interviews with 33 Kenyan respondents, four perspectives were distinguished. The first perspective, “economic productivity and growth,” prioritizes economic growth and has only limited attention to the social dimension of sustainability. The second perspective, “food security and food availability,” believes that ensuring food security should be the key goal of SFVCs. The third perspective, “environment first,” is dedicated to the environmental dimension of sustainability; the perspective implies that protecting natural resources is the primary way to sustain this level of production. The fourth perspective, “transformative knowledge,” entails that by innovating and sharing knowledge, food value chains can become more sustainable in different areas. Overall, this study provides reliable insights into how Kenyan food value chain actors perceive sustainability in their sector and which elements they believe should be prioritized when rethinking food systems. The study results are valuable for policy-making to further define an SFVC in Kenya and to pave the way for a sustainable transformation of the food sector in developing countries. |
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Wos |
001063371200001 |
Publication Date |
2023-09-11 |
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ISSN |
2190-6483 |
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Additional Links |
UA library record; WoS full record |
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Times cited |
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Approved |
Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:199200 |
Serial |
9210 |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Finizola e Silva, M.; Cools, J.; Cools, J.; Van Passel, S. |
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Title |
A systematic review identifying the drivers and barriers to the adoption of climate-smart agriculture by smallholder farmers in Africa |
Type |
Administrative Services |
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Year |
2024 |
Publication |
Frontiers in environmental economics |
Abbreviated Journal |
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Volume |
3 |
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Pages |
1356335-14 |
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Keywords |
Administrative Services; A3 Journal article; Economics; Engineering sciences. Technology; Engineering Management (ENM) |
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Abstract |
Climate change impact, food security concerns, and greenhouse gas emissions are pressuring agricultural production systems in developing countries. There is a need for a shift toward sustainable food systems. One of the concepts introduced to drive this shift is climate-smart agriculture (CSA), endorsed by international organizations to address multifaceted challenges. Despite widespread attention and support, the adoption of CSA among African farmers remains low. This systematic literature review aims to shed light on the factors influencing CSA adoption amongst African farmers. Within the articles identified as relevant, over 50 CSA practices and more than 40 factors influencing CSA adoption were distinguished. These influencing factors can be categorized as personal, farm- related, financial, environmental, and informational. The focus of this review is to identify and explain the overall impact (positive, negative, or mixed) of these factors on CSA adoption. Overall, many factors result in mixed effects, only some factors have an unambiguous positive or negative effect on CSA adoption. For instance, educational level emerges as a key personal factor, positively impacting CSA adoption, along with positive influences from farmers’ experience and farm size among farm-related factors. Financial factors reveal distinct patterns, with income from farming and access to credit positively influencing adoption, while off-farm income exhibits a negative effect. Environmental factors, though less researched, indicate positive impacts related to changes in rainfall patterns, temperature, and droughts. Lastly, informational factors consistently exhibit a positive effect on CSA adoption, with training, access to extension, group memberships, climate information, and CSA awareness playing crucial roles. These findings provide valuable insights for policymakers seeking to enhance CSA adoption in Africa, offering a nuanced understanding of the multifaceted dynamics at play. |
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Publication Date |
2024-04-03 |
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UA library record |
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Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:205017 |
Serial |
9233 |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Filez, M.; Feng, J.-Y.; Minjauw, M.M.; Solano, E.; Poonkottil, N.; Van Daele, M.; Ramachandran, R.K.; Li, C.; Bals, S.; Poelman, H.; Detavernier, C.; Dendooven, J.; Filez, M.; Minjauw, M.; Solano, E.; Poonkottil, N.; Li, C.; Bals, S.; Dendooven, J. |
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Title |
Shuffling atomic layer deposition gas sequences to modulate bimetallic thin films and nanoparticle properties |
Type |
A1 Journal article |
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Year |
2022 |
Publication |
Chemistry of materials |
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Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
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Abstract |
Atomic layer deposition (ALD) typically employs metal precursors and co-reactant pulses to deposit thin films in a layer-by-layer fashion. While conventional ABAB-type ALD sequences implement only two functionalities, namely, a metal source and ligand exchange agent, additional functionalities have emerged, including etching and reduction agents. Herein, we construct gas-phase sequences-coined as ALD+-with complex-ities reaching beyond the classic ABAB-type ALD by freely combining multiple functionalities within irregular pulse schemes, e.g., ABCADC. The possibilities of such combinations are explored as a smart strategy to tailor bimetallic thin films and nanoparticle (NP) properties. By doing so, we demonstrate that bimetallic thin films can be tailored with target thickness and through the full compositional range, while the morphology can be flexibly modulated from thin films to NPs by shuI 1ing the pulse sequence. These complex pulse schemes are expected to be broadly applicable but are here explored for Pd-Ru bimetallic thin films and NPs. |
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Wos |
000823205700001 |
Publication Date |
2022-06-29 |
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ISSN |
0897-4756; 1520-5002 |
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Additional Links |
UA library record; WoS full record |
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Impact Factor |
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Times cited |
2 |
Open Access |
OpenAccess |
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Notes |
This research was funded by the Research Foundation, Flanders (FWO) , and the Special Research Fund BOF of Ghent University (GOA 01G01019) . M.F. and M.M.M. acknowledge the FWO for a postdoctoral research fellowship (1280621N) . N.P. acknowledges the European Union's Horizon 2020 research and innovation program under the Marie Skiodowska-Curie grant agreement no. 765378. For the GISAXS measurements, the author s received funding from the European Community's Transnational Access Program CALIPSOplus. E.S. acknowledges the Spanish project RTI2018-093996-B-C32 MICINN/FEDER funds. Air Liquide is acknowledged for supporting this research. The authors acknowledge SOLEIL for the provision of synchrotron radiation facilities and would like to thank Dr. Alessandro Coati for assistance in using beamline SiXS. The GIWAXS experiments were performed at NCD-SWEET beamline at ALBA Synchrotron with the collaboration of ALBA staff . |
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no |
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Call Number |
UA @ admin @ c:irua:189541 |
Serial |
8928 |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Fernández Becerra, V.L. |
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Title |
Novel mesoscopic effects and topological states in chiral p-wave superconductors |
Type |
Doctoral thesis |
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Year |
2017 |
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Abbreviated Journal |
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Doctoral thesis; Condensed Matter Theory (CMT) |
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Antwerpen |
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Additional Links |
UA library record |
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Approved |
Most recent IF: NA |
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Call Number |
UA @ lucian @ c:irua:144012 |
Serial |
4601 |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Fenu, A.; De Wilde, W.; Gaertner, M.; Weemaes, M.; de Gueldre, G.; van de Steene, B. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Elaborating the membrane life concept in a full scale hollow-fibers MBR |
Type |
A1 Journal article |
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2012 |
Publication |
Journal of membrane science |
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Volume |
421 |
Issue |
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Pages |
349-354 |
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Keywords |
A1 Journal article; Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
The membrane life-time has a strong impact on competitivity and viability of MBRs. This study critically analyzes the membrane life-time concept, approaching it through different assessment methods. A full scale MBR's membrane life-time was assessed on the following: (i) maintaining the permeate flow throughput to the MBR; (ii) the permeability decline; (iii) oxidative aging; (iv) the increase in energy costs; and (v) mechanical aging. The method based on permeability decline provides a membrane life-time estimate up to a theoretical end. It was further elaborated inherently to operations with no long-term flux decline. The increase in operating pressure remains the main end-of-life trigger for deciding when to replace membrane modules. On the contrary, mechanical and permeate flow throughput analysis of the data are not able to provide a clear estimate of the membrane life-time. As for the membrane life-time estimation based on chlorine contact, it was found to be too optimistic. Complete irreversible fouling occurs before maximum contact time with chlorine is reached. At end-of-life operating conditions, the energy consumption raised of 170% due to the reduced flow rate. The cost raise appears high but still affordable. Earlier membrane replacement thus can never be counterbalanced by energy costs saving. (C) 2012 Elsevier B.V. All rights reserved. |
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Wos |
000308741100039 |
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2012-08-07 |
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ISSN |
0376-7388 |
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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:101790 |
Serial |
7856 |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Fenu, A. |
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Title |
Modelling and operations of municipal membrane bioreactors : from conventional to novel applications |
Type |
Doctoral thesis |
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Year |
2016 |
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Abbreviated Journal |
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Pages |
180 p. |
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Doctoral thesis; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) |
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ISBN |
978-90-5728-504-2 |
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UA library record |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:157025 |
Serial |
8266 |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Fedina, L.; van Landuyt, J.; Vanhellemont, J.; Aseev, A. |
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Title |
Observation of vacancy clustering in Si crystals during in situ electron irradiation in a high voltage electron microscope |
Type |
P1 Proceeding |
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Year |
1996 |
Publication |
Materials Research Society symposium proceedings |
Abbreviated Journal |
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Volume |
404 |
Issue |
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Pages |
189-194 |
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P1 Proceeding; Electron microscopy for materials research (EMAT) |
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Wuhan |
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Wos |
A1996BG19E00025 |
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0000-00-00 |
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ISSN |
0272-9172 |
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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 |
1 |
Open Access |
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Notes |
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Approved |
no |
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Call Number |
UA @ lucian @ c:irua:15457 |
Serial |
2424 |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Faust, V.; Vlaeminck, S.E.; Ganigué, R.; Udert, K.M. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Influence of pH on urine nitrification : community shifts of ammonia-oxidizing bacteria and inhibition of nitrite-oxidizing bacteria |
Type |
A1 Journal article |
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Year |
2024 |
Publication |
ACS ES&T engineering |
Abbreviated Journal |
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Volume |
4 |
Issue |
2 |
Pages |
342-353 |
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Keywords |
A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
Urine nitrification is pH-sensitive due to limited alkalinity and high residual ammonium concentrations. This study aimed to investigate how the pH affects nitrogen conversion and the microbial community of urine nitrification with a pH-based feeding strategy. First, kinetic parameters for NH3, HNO2, and NO2– limitation and inhibition were determined for nitrifiers from a urine nitrification reactor. The turning point for ammonia-oxidizing bacteria (AOB), i.e., the substrate concentration at which a further increase would lead to a decrease in activity due to inhibitory effects, was at an NH3 concentration of 12 mg-N L–1, which was reached only at pH values above 7. The total nitrite turning point for nitrite-oxidizing bacteria (NOB) was pH-dependent, e.g., 18 mg-N L–1 at pH 6.3. Second, four years of data from two 120 L reactors were analyzed, showing that stable nitrification with low nitrite was most likely between pH 5.8 and 6.7. And third, six 12 L urine nitrification reactors were operated at total nitrogen concentrations of 1300 and 3600 mg-N L–1 and pH values between 2.5 and 8.5. At pH 6, the AOB Nitrosomonas europaea was found, and the NOB belonged to the genus Nitrobacter. At pH 7, nitrite accumulated, and Nitrosomonas halophila was the dominant AOB. NOB were inhibited by HNO2 accumulation. At pH 8.5, the AOB Nitrosomonas stercoris became dominant, and NH3 inhibited NOB. Without influent, the pH dropped to 2.5 due to the growth of the acid-tolerant AOB “Candidatus Nitrosacidococcus urinae”. In conclusion, pH is a decisive process control parameter for urine nitrification by influencing the selection and kinetics of nitrifiers. |
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2023-11-02 |
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UA library record |
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Open Access |
Not_Open_Access |
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Approved |
Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:203306 |
Serial |
9048 |
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Permanent link to this record |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Faust, V.; van Alen, T.A.; Op den Camp, H.J.M.; Vlaeminck, S.E.; Ganigué, R.; Boon, N.; Udert, K.M. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Ammonia oxidation by novel “Candidatus Nitrosacidococcus urinae” is sensitive to process disturbances at low pH and to iron limitation at neutral pH |
Type |
A1 Journal article |
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Year |
2022 |
Publication |
Water Research X |
Abbreviated Journal |
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Volume |
17 |
Issue |
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Pages |
100157-11 |
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Keywords |
A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
Acid-tolerant ammonia-oxidizing bacteria (AOB) can open the door to new applications, such as partial nitritation at low pH. However, they can also be problematic because chemical nitrite oxidation occurs at low pH, leading to the release of harmful nitrogen oxide gases. In this publication, the role of acid-tolerant AOB in urine treatment was explored. On the one hand, the technical feasibility of ammonia oxidation under acidic conditions for source-separated urine with total nitrogen concentrations up to 3.5 g-N L−1 was investigated. On the other hand, the abundance and growth of acid-tolerant AOB at more neutral pH was explored. Under acidic conditions (pH of 5), ammonia oxidation rates of 500 mg-N L−1 d−1 and 10 g-N g-VSS-1 d-1 were observed, despite high concentrations of 15 mg-N L−1 of the AOB-inhibiting compound nitrous acid and low concentration of 0.04 mg-N L−1 of the substrate ammonia. However, ammonia oxidation under acidic conditions was very sensitive to process disturbances. Even short periods of less than 12 h without oxygen or without influent resulted in a complete cessation of ammonia oxidation with a recovery time of up to two months, which is a problem for low maintenance applications such as decentralized treatment. Furthermore, undesirable nitrogen losses of about 10% were observed. Under acidic conditions, a novel AOB strain was enriched with a relative abundance of up to 80%, for which the name “Candidatus (Ca.) Nitrosacidococcus urinae” is proposed. While Nitrosacidococcus members were present only to a small extent (0.004%) in urine nitrification reactors operated at pH values between 5.8 and 7, acid-tolerant AOB were always enriched during long periods without influent, resulting in an uncontrolled drop in pH to as low as 2.5. Long-term experiments at different pH values showed that the activity of “Ca. Nitrosacidococcus urinae” decreased strongly at a pH of 7, where they were also outcompeted by the acid-sensitive AOB Nitrosomonas halophila. The experiment results showed that the decreased activity of “Ca. Nitrosacidococcus urinae” correlated with the limited availability of dissolved iron at neutral pH. |
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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 |
000877925500001 |
Publication Date |
2022-10-04 |
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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 |
2589-9147 |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
|
Times cited |
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Open Access |
OpenAccess |
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Notes |
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Approved |
Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:190944 |
Serial |
7124 |
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Permanent link to this record |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Faust, V.; Gruber, W.; Ganigue, R.; Vlaeminck, S.E.; Udert, K.M. |
![goto web page url](http://nano.uantwerpen.be/nanorefs/img/www.gif)
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Nitrous oxide emissions and carbon footprint of decentralized urine fertilizer production by nitrification and distillation |
Type |
A1 Journal article |
|
Year |
2022 |
Publication |
ACS ES&T engineering |
Abbreviated Journal |
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Volume |
2 |
Issue |
9 |
Pages |
1745-1755 |
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Keywords |
A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
Combining partial nitrification, granular activated carbon (GAC) filtration, and distillation is a well-studied approach to convert urine into a fertilizer. To evaluate the environmental sustainability of a technology, the operational carbon footprint and therefore nitrous oxide (N2O) emissions should be known, but N2O emissions from urine nitrification have not been assessed yet. Therefore, N2O emissions of a decentralized urine nitrification reactor were monitored for 1 month. During nitrification, 0.4-1.2% of the total nitrogen load was emitted as N2O-N with an average N2O emission factor (EFN2O) of 0.7%. Additional N2O was produced during anoxic storage between nitrification and GAC filtration with an estimated EFN2O of 0.8%, resulting in an EFN2O of 1.5% for the treatment chain. N2O emissions during nitrification can be mitigated by 60% by avoiding low dissolved oxygen or anoxic conditions and nitrite concentrations above 5 mg-N L-1. Minimizing the hydraulic retention time between nitrification and GAC filtration can reduce N2O formation during intermediate storage by 100%. Overall, the N2O emissions accounted for 45% of the operational carbon footprint of 14 kg-CO2,equiv kg-N-1 for urine fertilizer production. Using electricity from renewable sources and applying the proposed N2O mitigation strategies could potentially lower the carbon footprint by 85%. |
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Wos |
000835412700001 |
Publication Date |
2022-07-29 |
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Abbreviated Series Title |
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Edition |
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ISSN |
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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 |
OpenAccess |
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Notes |
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Approved |
Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:189599 |
Serial |
7182 |
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Permanent link to this record |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Faust, V.; Boon, N.; Ganigué, R.; Vlaeminck, S.E.; Udert, K.M. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Optimizing control strategies for urine nitrification : narrow pH control band enhances process stability and reduces nitrous oxide emissions |
Type |
A1 Journal article |
|
Year |
2023 |
Publication |
Frontiers in environmental science |
Abbreviated Journal |
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|
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Volume |
11 |
Issue |
|
Pages |
1275152-14 |
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Keywords |
A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
Nitrification is well-suited for urine stabilization. No base dosage is required if the pH is controlled within an appropriate operating range by urine feeding, producing an ammonium-nitrate fertilizer. However, the process is highly dependent on the selected pH set-points and is susceptible to process failures such as nitrite accumulation or the growth of acid-tolerant ammonia-oxidizing bacteria. To address the need for a robust and reliable process in decentralized applications, two different strategies were tested: operating a two-position pH controller (inflow on/off) with a narrow pH control band at 6.20/6.25 (∆pH = 0.05, narrow-pH) vs. a wider pH control band at 6.00/6.50 (∆pH = 0.50, wide-pH). These variations in pH also cause variations in the chemical speciation of ammonia and nitrite and, as shown, the microbial production of nitrite. It was hypothesized that the higher fluctuations would result in greater microbial diversity and, thus, a more robust process. The diversity of nitrifiers was higher in the wide-pH reactor, while the diversity of the entire microbiome was similar in both systems. However, the wide-pH reactor was more susceptible to tested process disturbances caused by increasing pH or temperature, decreasing dissolved oxygen, or an influent stop. In addition, with an emission factor of 0.47%, the nitrous oxide (N2O) emissions from the wide-pH reactor were twice as high as the N2O emissions from the narrow-pH reactor, most likely due to the nitrite fluctuations. Based on these results, a narrow control band is recommended for pH control in urine nitrification. |
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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 |
001087861500001 |
Publication Date |
2023-10-10 |
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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 |
2296-665x |
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 |
OpenAccess |
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Notes |
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Approved |
Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:199585 |
Serial |
8909 |
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Permanent link to this record |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Fatermans, J. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Quantitative atom detection from atomic-resolution transmission electron microscopy images |
Type |
Doctoral thesis |
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Year |
2019 |
Publication |
|
Abbreviated Journal |
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Volume |
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Issue |
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Pages |
155 p. |
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Keywords |
Doctoral thesis; 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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Wos |
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Publication Date |
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Series Editor |
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Series Title |
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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 |
Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:162101 |
Serial |
5394 |
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Permanent link to this record |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Fatemi, M.; Azadi, H.; Rafiaani, P.; Taheri, F.; Dubois, T.; Van Passel, S.; Witlox, F. |
![goto web page url](http://nano.uantwerpen.be/nanorefs/img/www.gif)
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Effects of supply chain management on tomato export in Iran : application of structural equation modeling |
Type |
A1 Journal article |
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Year |
2018 |
Publication |
Journal of food products marketing |
Abbreviated Journal |
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Volume |
24 |
Issue |
2 |
Pages |
177-195 |
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Keywords |
A1 Journal article; Economics; Engineering Management (ENM); Government and Law |
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Abstract |
Although Iran is one of the top 10 countries in the world that produce tomatoes, the level that they are exported into the global market is low. This issue may have resulted from a major problem within tomatoes supply chain management. This paper aims to develop an empirical model of the supply chain management (SCM) of tomato companies. Throughout the reviewed literature, a SCM construct with different six indicators has been developed, including information sharing, long-term relationship, cooperation, quality, flexibility, and delivery. In this study, the influence of the SCM components on tomato export was identified through the use of empirical data that were collected from 20 different tomato companies in Northeast Iran. Using structural equation modeling, the major elements of SCM were found to have significant impacts on the export of tomatoes. The results also showed that information sharing, cooperation, flexibility, quality, and delivery had significant positive effects on the export of tomatoes. |
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Corporate Author |
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Place of Publication |
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Language |
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Wos |
000424803000004 |
Publication Date |
2017-03-06 |
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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 |
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Series Issue |
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Edition |
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ISSN |
1045-4446 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles; WoS full record; WoS citing articles |
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Impact Factor |
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Times cited |
2 |
Open Access |
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Notes |
; ; |
Approved |
Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:149044 |
Serial |
6192 |
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Permanent link to this record |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Falkenberg, G.; Fleissner, G.E.; Fleissner, G.U.E.; Schuchardt, K.; Kühbacher, M.; Chalmin, E.; Janssens, K. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
High resolution micro-XRF maps of iron oxides inside sensory dendrites of putative avian magnetoreceptors |
Type |
A1 Journal article |
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Year |
2009 |
Publication |
Journal of physics : conference series |
Abbreviated Journal |
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Volume |
186 |
Issue |
1 |
Pages |
012084-3 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
Iron mineral containing sensory dendrites in the inner lining of the upper beak of homing pigeons [1] and various bird species [2] are the first candidate structures for an avian magnetic field receptor. A new concept of magnetoreception [3, 4] is based on detailed ultra-structural optical and electron microscopy analyses in combination with synchrotron radiation microscopic X-ray fluorescence analysis (micro-XRF) and microscopic X-ray absorption near edge structures (micro-XANES). Several behavioral experiments [5, 6] and first mathematical simulations [6] affirm our avian magnetoreceptor model. The iron minerals inside the dendrites are housed in three different subcellular compartments (bullets, platelets, vesicles), which could be clearly resolved and identified by electron microscopy on ultrathin sections [1, 3]. Micro-XRF and micro-XANES data obtained at HASYLAB beamline L added information about the elemental distribution and Fe speciation [3], but are averaged over the complete dendrite due to limited spatial resolution. Here we present recently performed micro-XRF maps with sub-micrometer resolution (ESRF ID21), which reveal for the first time subcellular structural information from almost bulk-like dendrite sample material. Due to the thickness of 30 μm the microarchitecture of the dendrites can be considered as undisturbed and artefacts introduced by sectioning might be widely reduced. |
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Place of Publication |
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Wos |
000282023900084 |
Publication Date |
2009-09-26 |
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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 |
1742-6588; 1742-6596 |
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 |
2 |
Open Access |
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Notes |
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Approved |
Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:111317 |
Serial |
5642 |
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Permanent link to this record |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Facetti, J.; Dekov, V.M.; Van Grieken, R. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Heavy metals in sediments from the Paraguay river: a preliminary study |
Type |
A1 Journal article |
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Year |
1998 |
Publication |
The science of the total environment |
Abbreviated Journal |
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Volume |
209 |
Issue |
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Pages |
79-86 |
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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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Place of Publication |
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Language |
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Wos |
000072368900008 |
Publication Date |
2002-07-26 |
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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 |
0048-9697; 1879-1026 |
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:20961 |
Serial |
8025 |
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Permanent link to this record |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Eyckmans, K.; Zhang, J.; de Hoog, J.; Joos, P.; Van Grieken, R. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Leaching of nutrients and trace metals from aerosol samples: a comparison between a re-circulation and an ultrasound system |
Type |
A1 Journal article |
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Year |
2001 |
Publication |
International journal of environmental analytical chemistry |
Abbreviated Journal |
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Volume |
80 |
Issue |
3 |
Pages |
227-243 |
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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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Wos |
000172385700006 |
Publication Date |
2007-07-07 |
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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 |
0306-7319 |
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:36087 |
Serial |
8167 |
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Permanent link to this record |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Eyckmans, K.; Van Grieken, R. |
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Title |
Luchtkwaliteit boven de Noordzeekust |
Type |
H3 Book chapter |
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Year |
2001 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
9-14
T2 - Lucht zonder grenzen: infosessie, De Pan |
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Keywords |
H3 Book chapter; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Wos |
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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:36387 |
Serial |
8190 |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Eyckmans, K.; de Hoog, J.; van der Auwera, L.; Van Grieken, R. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Speciation of aerosols by combining bulk ion chromatography and thin-window electron probe micro analysis |
Type |
A1 Journal article |
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Year |
2003 |
Publication |
International journal of environmental analytical chemistry |
Abbreviated Journal |
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Volume |
83 |
Issue |
9 |
Pages |
777-786 |
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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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Corporate Author |
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Thesis |
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Place of Publication |
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Wos |
000184457600006 |
Publication Date |
2004-05-02 |
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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 |
0306-7319 |
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:43556 |
Serial |
8571 |
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Permanent link to this record |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Even, A.; ten Brink, H.M.; Khlystov, A.; Smekens, A.; Berghmans, P.; Van Grieken, R. |
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Title |
The influence of black carbon on the crystallization point of salt aerosol |
Type |
A1 Journal article |
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Year |
2000 |
Publication |
Journal of aerosol science |
Abbreviated Journal |
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Volume |
31 |
Issue |
S1 |
Pages |
336-337 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Wos |
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|
Abbreviated Series Title |
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Series Issue |
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Edition |
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ISSN |
0021-8502; 1879-1964 |
ISBN |
|
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:31636 |
Serial |
8088 |
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Permanent link to this record |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Evangelista, H.; Maldonado, J.; Godoi, R.H.M.; Pereira, E.B.; Koch, D.; Tanizaki-Fonseca, K.; Van Grieken, R.; Sampaio, M.; Setzer, A.; Alencar, A.; Gonçalves, S.C. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Sources and transport of urban and biomass burning aerosol black carbon at the South-West Atlantic coast |
Type |
A1 Journal article |
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Year |
2007 |
Publication |
Journal of atmospheric chemistry |
Abbreviated Journal |
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Volume |
56 |
Issue |
3 |
Pages |
225-238 |
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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 |
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Wos |
000245105900002 |
Publication Date |
2007-01-02 |
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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 |
0167-7764 |
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:63841 |
Serial |
8561 |
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Evangelista, H.; Maldonado, J.; dos Santos, E.A.; Godoi, R.H.M.; Garcia, C.A.E.; Garcia, V.M.T.; Johnson, E.; da Cunha, K.D.; Leite, C.B.; Van Grieken, R.; van Meel, K.; Makarovska, Y.; Gaiero, D.M. |
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Title |
Inferring episodic atmospheric iron fluxes in the Western South Atlantic |
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A1 Journal article |
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Year |
2010 |
Publication |
Atmospheric environment : an international journal |
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44 |
Issue |
5 |
Pages |
703-712 |
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A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
Iron (Fe) and other trace elements such as Zn, Mn, Ni and Cu are known as key-factors in marine biogeochemical cycles. It is believed that ocean primary productivity blooms in iron deficient regions can be triggered by iron in aeolian dust. Up to now, scarce aerosol elemental composition, based on measurements over sea at the Western South Atlantic (WSA), exist. An association between the Patagonian semi-desert dust/Fe and chlorophyll-a variability at the Argentinean continental shelf is essentially inferred from models. We present here experimental data of Fe enriched aerosols over the WSA between latitudes 22°S62°S, during 4 oceanographic campaigns between 2002 and 2005. These data allowed inferring the atmospheric Fe flux onto different latitudinal bands which varied from 30.4 to 1688 nmolFe m−2 day−1 (October 29thNovember 15th, 2003); 5.831586 nmolFe m−2 day−1 (February 15thMarch 6th, 2004) and 4.73586 nmolFe m−2 day−1(October 21stNovember 5th, 2005). |
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000274931800012 |
Publication Date |
2009-11-19 |
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1352-2310 |
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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:80695 |
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8086 |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Espinosa, I.M.P.; Karaaslan, Y.; Sevik, C.; Martini, A. |
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Title |
Atomistic model of the anisotropic response of ortho-Mo₂C to indentation |
Type |
A1 Journal article |
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Year |
2023 |
Publication |
AIP advances |
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Volume |
13 |
Issue |
6 |
Pages |
065125-65127 |
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A1 Journal article; Engineering sciences. Technology; Condensed Matter Theory (CMT) |
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Molybdenum carbide has various applications for which studying the material using classical molecular dynamics simulations would be valuable. Here, we develop an empirical potential within the Tersoff formalism using particle swarm optimization for the orthorhombic phase of Mo2C. The developed potential is shown to predict lattice constants, elastic properties, and equation of state results that are consistent with current and previously reported results from experiments and first principles calculations. We demonstrate the potential with simulations of indentation using multiple indenter sizes that load and unload in three different directions relative to the crystallographic lattice of orthorhombic Mo2C. Direction-dependent force-displacement trends are analyzed and explained in terms of the spatial distributions of stress and strain within the material during indentation. This study reveals the anisotropic elasticity of orthorhombic Mo2C and, more generally, provides researchers with a new empirical potential that can be used to explore the properties and behavior of the material going forward. |
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001016472500005 |
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2023-06-23 |
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2158-3226 |
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UA library record; WoS full record |
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OpenAccess |
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Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:198333 |
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8834 |
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Esguerra, J.L.; Krook, J.; Svensson, N.; Van Passel, S. |
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Title |
Assessing the economic potential of landfill mining : review and recommendations |
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A1 Journal article |
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2019 |
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Detritus |
Abbreviated Journal |
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Volume 08 - December 2019 |
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Volume 08 - December 2019 |
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1 |
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A1 Journal article; Engineering Management (ENM) |
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As landfill mining (LFM) gains public attention, systematic assessment of its economic potential is deemed necessary. The aim of this review is to critically analyze the usefulness and validity of previous economic assessments of LFM. Following the life cycle costing (LCC) framework, (i) the employed methods based on goal and scope, technical parameters and data inventory, and modelling choices were contrasted with respect to (ii) the synthesized main findings based on net profitability and economic performance drivers. Results showed that the selected studies (n=15) are mostly case study-specific and concluded that LFM has a weak economic potential, hinting at the importance of favorable market and regulation settings. However, several method issues are apparent as costs and revenues are accounted at different levels of aggregation, scope and scale-from process to sub-process level, from private to societal economics, and from laboratory to pilot-scale, respectively. Moreover, despite the inherent large uncertainties, more than half of the studies did not perform any uncertainty or sensitivity analyses posing validity issues. Consequently, this also limits the usefulness of results as individual case studies and as a collective, towards a generic understanding of LFM economics. Irrespective of case study-specific or generic aims, this review recommends that future assessments should be learning-oriented. That is, uncovering granular information about what builds up the net profitability of LFM, to be able to systematically determine promising paths for the development of cost-efficient projects. |
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000504065300011 |
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2019-12-23 |
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; This study has received funding from the European Training Network for Resource Recovery Through Enhanced Landfill Mining (NEW-MINE, Grant Agreement No 721185) under the European Union's EU Framework Programme for Research and Innovation Horizon 2020. ; |
Approved |
Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:165758 |
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6153 |
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Esguerra, J.L. |
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Title |
Developing strategies for improved economic performance and reduced climate impact of landfill mining in Europe |
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Doctoral thesis |
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2021 |
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xiv, 99 p. |
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Doctoral thesis; Economics; Engineering Management (ENM) |
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Landfill mining refers to the re-circulation of resources from the previously deposited wastes–integrating resource recovery with traditional site remediation. Several resources that can be recovered include scrap metals, combustibles, and inert materials. In addition, land can be recovered or landfill void space can be liberated for future wastes. At present, landfill mining is still an emerging concept with few project implementations. Consequently, the assessments of its economic and climate implications are case study-specific, limiting the understanding of its potential in a wider geographical scope. This thesis aims to assess the economic performance and climate impact of landfill mining in Europe towards the development of sound strategies for implementation. Different project setups are assessed in relation to varying factors at the site level such as waste composition and landfill settings, and at the system level such as policy and market conditions and background material and energy. In doing so, a factor-based method is developed and applied to generate multiple scenarios (531, 441 scenarios per project setup) and determine the underlying important factors and their interrelations that drive the results. Such understanding is used to develop and discuss strategies for improvement by addressing relevant questions for specific stakeholders, including project investors (i.e., which landfill sites to prioritize?), landfill mining practitioners (i.e., how to set up such projects?), and policymakers (i.e., which policy instruments can effectively support such projects?). Results show that landfill mining is preferable in terms of climate than economy. Possible improvements are shown by internalizing thermal treatment of combustibles and extending fines residue utilization as construction aggregates. In relation to the choice of project setups, preferable site and system-level conditions are identified in general but it is also discussed that the plausibility of finding such conditions may be difficult at present. This steers the development of more tailored strategies on what can be done now by the landfill practitioners in terms of setting up projects under current policy and market conditions in specific regions, or what can be done by the policymakers in terms of implementing various policy instruments that can drive such changes at the system level. Through this thesis, the future of landfill mining research is guided towards addressing key challenges and potential solutions for improvement. Furthermore, this thesis highlights the role of assessment as a tool for learning and guiding the development of emerging concepts such as landfill mining. |
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978-91-7929-056-6 |
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Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:183155 |
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6920 |
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Eltayeb, M.A.H.; Van Grieken, R.E.; Maenhaut, W.; Annegarn, H.A.J. |
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Title |
Aerosol-soil fractionation for Namib Desert samples |
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A1 Journal article |
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1993 |
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Atmospheric environment: part A : general topics |
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27 |
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669-678 |
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A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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A1993KY38100004 |
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2003-08-06 |
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0960-1686; 1878-2124 |
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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:6247 |
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7425 |
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Eltayeb, M.A.H.; Van Grieken, R.E.; Maenhaut, W.; Annegarn, H.A.J. |
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Aerosol-soil fractionation for Namib desert samples |
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A3 Journal article |
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1992 |
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Journal of aersol science |
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23 |
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S1 |
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983-986 |
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A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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no |
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Call Number |
UA @ admin @ c:irua:2843 |
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7426 |
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Eltayeb, M.A.H.; Van Grieken, R.E. |
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Title |
Coprecipitation with aluminium hydroxide and x-ray fluorescence determination of trace metals in water |
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A1 Journal article |
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1992 |
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Analytica chimica acta |
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268 |
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177-183 |
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A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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A1992JQ23300020 |
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2002-07-25 |
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0003-2670; 1873-4324 |
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UA library record; WoS full record; WoS citing articles |
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Call Number |
UA @ admin @ c:irua:2840 |
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7733 |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Eltayeb, M.A.H.; Van Grieken, R.E. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Iron, copper, zinc and lead in hair from Sudanese populations of different age groups |
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A1 Journal article |
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1990 |
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The science of the total environment |
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95 |
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157-165 |
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A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Energy-dispersive X-ray fluorescence was used for the analysis of hair samples from three different age groups of the Sudanese population. Hair samples were digested in a mixture of nitric and perchloric acids and the metals were then precipitated with ammonium pyrrolidine dithiocarbamate. The variations of the Fe, Cu, Zn and Pb content of hair with age were investigated. The averages of the elemental concentrations in each age group were compared with the other age groups and with literature values. The correlation of each pair of elements in the hair samples was also investigated. |
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A1990DP94300014 |
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2003-09-12 |
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0048-9697; 1879-1026 |
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UA library record; WoS full record; WoS citing articles |
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Call Number |
UA @ admin @ c:irua:116656 |
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8132 |
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