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| Author | De Paepe, J.; De Paepe, K.; Gòdia, F.; Rabaey, K.; Vlaeminck, S.E.; Clauwaert, P. | ||||
| Title | Bio-electrochemical COD removal for energy-efficient, maximum and robust nitrogen recovery from urine through membrane aerated nitrification | Type | A1 Journal article | ||
| Year | 2020 | Publication | Water Research | Abbreviated Journal  |
Water Res |
| Volume | 185 | Issue | Pages | 116223 | |
| Keywords | A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) | ||||
| Abstract | Resource recovery from source-separated urine can shorten nutrient cycles on Earth and is essential in regenerative life support systems for deep-space exploration. In this study, a robust two-stage, energy-efficient, gravity-independent urine treatment system was developed to transform fresh real human urine into a stable nutrient solution. In the first stage, up to 85% of the COD was removed in a microbial electrolysis cell (MEC), converting part of the energy in organic compounds (27-46%) into hydrogen gas and enabling full nitrogen recovery by preventing nitrogen losses through denitrification in the second stage. Besides COD removal, all urea was hydrolysed in the MEC, resulting in a stream rich in ammoniacal nitrogen and alkalinity, and low in COD. This stream was fed into a membrane-aerated biofilm reactor (MABR) in order to convert the volatile and toxic ammoniacal nitrogen to non-volatile nitrate by nitrification. Bio-electrochemical pre-treatment allowed to recover all nitrogen as nitrate in the MABR at a bulk-phase dissolved oxygen level below 0.1 mg O2 L-1. In contrast, feeding the MABR directly with raw urine (omitting the first stage), at the same nitrogen loading rate, resulted in nitrogen loss (18%) due to denitrification. The MEC and MABR were characterised by very distinct and diverse microbial communities. While (strictly) anaerobic genera, such as Geobacter (electroactive bacteria), Thiopseudomonas, a Lentimicrobiaceae member, Alcaligenes and Proteiniphilum prevailed in the MEC, the MABR was dominated by aerobic genera, including Nitrosomonas (a known ammonium oxidiser), Moheibacter and Gordonia. The two-stage approach yielded a stable nitrate-rich, COD-low nutrient solution, suitable for plant and microalgae cultivation. | ||||
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| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000580639800035 | Publication Date | 2020-07-23 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0043-1354 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 12.8 | Times cited | Open Access | ||
| Notes | Approved | Most recent IF: 12.8; 2020 IF: 6.942 | |||
| Call Number | UA @ admin @ c:irua:170524 | Serial | 6461 | ||
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| Author | Geerts, R.; Vandermoere, F.; Van Winckel, T.; Halet, D.; Joos, P.; Van Den Steen, K.; Van Meenen, E.; Blust, R.; Borregán-Ochando, E.; Vlaeminck, S.E. | ||||
| Title | Bottle or tap? Toward an integrated approach to water type consumption | Type | A1 Journal article | ||
| Year | 2020 | Publication | Water Research | Abbreviated Journal |
Water Res |
| Volume | 173 | Issue | Pages | 115578-10 | |
| Keywords | A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL); Centre for Research on Environmental and Social Change | ||||
| Abstract | While in many countries, people have access to cheap and safe potable tap water, the global consumption of bottled water is rising. Flanders, Belgium, where this study is located, has an exceptionally high consumption of bottled water per capita. However, in the interest of resource efficiency and global environmental challenges, the consumption of tap water is preferable. To our knowledge, an integrated analysis of the main reasons why people consume tap and bottled water is absent in Flanders, Belgium. Using Flemish survey data (N = 2309), we first compared tap and bottled water consumers through bivariate correlation analysis. Subsequently, path modelling techniques were used to further investigate these correlations. Our results show that bottled water consumption in Flanders is widespread despite environmental and financial considerations. For a large part, this is caused by negative perceptions about tap water. Many consumers consider it unhealthy, unsafe and prefer the taste of bottled water. Furthermore, we found that the broader social context often inhibits the consumption of tap water. On the one hand, improper infrastructures (e.g. lead piping) can limit access to potable tap water. On the other hand, social norms exist that promote bottled water. Lastly, results suggest that the consumption of bottled water is most common among men, older people and less educated groups. We conclude that future research and policy measures will benefit from an approach that integrates all behavioural aspects associated with water type consumption. This will enable both governments and tap water companies to devise more effective policies to manage and support tap water supply networks. | ||||
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| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000523569000012 | Publication Date | 2020-01-31 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0043-1354 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 12.8 | Times cited | 2 | Open Access | |
| Notes | ; This was supported by a grant from Water-link. ; | Approved | Most recent IF: 12.8; 2020 IF: 6.942 | ||
| Call Number | UA @ admin @ c:irua:165873 | Serial | 6464 | ||
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| Author | Spiller, M.; Muys, M.; Papini, G.; Sakarika, M.; Buyle, M.; Vlaeminck, S.E. | ||||
| Title | Environmental impact of microbial protein from potato wastewater as feed ingredient : comparative consequential life cycle assessment of three production systems and soybean meal | Type | A1 Journal article | ||
| Year | 2020 | Publication | Water Research | Abbreviated Journal |
Water Res |
| Volume | 171 | Issue | Pages | 115406 | |
| Keywords | A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL); Energy and Materials in Infrastructure and Buildings (EMIB) | ||||
| Abstract | Livestock production is utilizing large amounts of protein-rich feed ingredients such as soybean meal. The proven negative environmental impacts of soybean meal production incentivize the search for alternative protein sources. One promising alternative is Microbial Protein (MP), i.e. dried microbial biomass. To date, only few life cycle assessments (LCAs) for MP have been carried out, none of which has used a consequential modelling approach nor has been investigating the production of MP on food and beverage wastewater. Therefore, the objective of this study is to evaluate the environmental impact of MP production on a food and beverage effluent as a substitute for soybean meal using a consequential modelling approach. Three different types of MP production were analysed, namely consortia containing Aerobic Heterotrophic Bacteria (AHB), Microalgae and AHB (MaB), and Purple Non-Sulfur Bacteria (PNSB). The production of MP was modelled for high-strength potato wastewater (COD = 10 kg/m3) at a flow rate of 1,000 m3/day. LCA results were compared against soybean meal production for the endpoint impact categories human health, ecosystems, and resources. Soybean meal showed up to 52% higher impact on human health and up to 87% higher impact on ecosystems than MP. However, energy-related aspects resulted in an 8–88% higher resource exploitation for MP. A comparison between the MP production systems showed that MaB performed best when considering ecosystems (between 13 and 14% better) and resource (between 71 and 80% better) impact categories, while AHB and PNSB had lower values for the impact category human health (8–12%). The sensitivity analysis suggests that the conclusions drawn are robust as in the majority of 1,000 Monte Carlo runs the initial results are confirmed. In conclusion, it is suggested that MP is an alternative protein source of comparatively low environmental impact that should play a role in the future protein transition, in particular when further process improvements can be implemented and more renewable or waste energy sources will be used. | ||||
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| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000514748900032 | Publication Date | 2019-12-18 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0043-1354 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 12.8 | Times cited | 10 | Open Access | |
| Notes | ; The authors would like to thank (i) the MIP i-Cleantech Flanders (Milieu innovatieplatform; Environment innovation platform) project Microbial Nutrients on Demand (MicroNOD; 150360) for financial support, (ii) the Research Foundation Flanders (FWO-Vlaanderen) for supporting Gustavo Papini with a doctoral fellowship (strategic basic research; 1S38917N), (iii) Research Foundation Flanders (FWO-Vlaanderen) for supporting Matthias Buyle with a post-doctoral fellowship (Postdoctoral Fellow junior; 1207520N), and (iv) Bo Weidema, Abbas Alloul, Yixing Sui and Tim Van Winckel for their insightful discussions. ; | Approved | Most recent IF: 12.8; 2020 IF: 6.942 | ||
| Call Number | UA @ admin @ c:irua:164944 | Serial | 6509 | ||
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| Author | Agrawal, S.; Weissbrodt, D.G.; Annavajhala, M.; Jensen, M.M.; Arroyo, J.M.C.; Wells, G.; Chandran, K.; Vlaeminck, S.E.; Terada, A.; Smets, B.F.; Lackner, S. | ||||
| Title | Time to act–assessing variations in qPCR analyses in biological nitrogen removal with examples from partial nitritation/anammox systems | Type | A1 Journal article | ||
| Year | 2021 | Publication | Water Research | Abbreviated Journal |
Water Res |
| Volume | 190 | Issue | Pages | 116604 | |
| Keywords | A1 Journal article; Sustainable Energy, Air and Water Technology (DuEL) | ||||
| Abstract | Quantitative PCR (qPCR) is broadly used as the gold standard to quantify microbial community fractions in environmental microbiology and biotechnology. Benchmarking efforts to ensure the comparability of qPCR data for environmental bioprocesses are still scarce. Also, for partial nitritation/anammox (PN/A) systems systematic investigations are still missing, rendering meta-analysis of reported trends and generic insights potentially precarious. We report a baseline investigation of the variability of qPCR-based analyses for microbial communities applied to PN/A systems. Round-robin testing was performed for three PN/A biomass samples in six laboratories, using the respective in-house DNA extraction and qPCR protocols. The concentration of extracted DNA was significantly different between labs, ranged between 2.7 and 328 ng mg−1 wet biomass. The variability among the qPCR abundance data of different labs was very high (1−7 log fold) but differed for different target microbial guilds. DNA extraction caused maximum variation (3–7 log fold), followed by the primers (1–3 log fold). These insights will guide environmental scientists and engineers as well as treatment plant operators in the interpretation of qPCR data. | ||||
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| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000632807700001 | Publication Date | 2020-11-05 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0043-1354; 1879-2448 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 6.942 | Times cited | Open Access | OpenAccess | |
| Notes | Approved | Most recent IF: 6.942 | |||
| Call Number | UA @ admin @ c:irua:173838 | Serial | 8672 | ||
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| Author | Ngo, K.N.; Tampon, P.; Van Winckel, T.; Massoudieh, A.; Sturm, B.; Bott, C.; Wett, B.; Murthy, S.; Vlaeminck, S.E.; DeBarbadillo, C.; De Clippeleir, H. | ||||
| Title | Introducing bioflocculation boundaries in process control to enhance effluent quality of high‐rate contact‐stabilization systems | Type | A1 Journal article | ||
| Year | 2022 | Publication | Water environment research | Abbreviated Journal |
Water Environ Res |
| Volume | 94 | Issue | 8 | Pages | e10772-17 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) | ||||
| Abstract | High-rate activated sludge (HRAS) systems suffer from high variability of effluent quality, clarifier performance, and carbon capture. This study proposed a novel control approach using bioflocculation boundaries for wasting control strategy to enhance effluent quality and stability while still meeting carbon capture goals. The bioflocculation boundaries were developed based on the oxygen uptake rate (OUR) ratio between contactor and stabilizer (feast/famine) in a high-rate contact stabilization (CS) system and this OUR ratio was used to manipulate the wasting setpoint. Increased oxidation of carbon or decreased wasting was applied when OUR ratio was <0.52 or >0.95 to overcome bioflocculation limitation and maintain effluent quality. When no bioflocculation limitations (OUR ratio within 0.52–0.95) were detected, carbon capture was maximized. The proposed control concept was shown for a fully automated OUR-based control system as well as for a simplified version based on direct waste flow control. For both cases, significant improvements in effluent suspended solids level and stability (<50-mg TSS/L), solids capture over the clarifier (>90%), and COD capture (median of 32%) were achieved. This study shows how one can overcome the process instability of current HRAS systems and provide a path to achieve more reliable outcomes. | ||||
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| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000840360100001 | Publication Date | 2022-07-23 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1061-4303; 1554-7531 | ISBN | Additional Links | UA library record; WoS full record | |
| Impact Factor | 3.1 | Times cited | Open Access | OpenAccess | |
| Notes | Approved | Most recent IF: 3.1 | |||
| Call Number | UA @ admin @ c:irua:189409 | Serial | 7174 | ||
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| Author | Kleinhans, K.; Hallemans, M.; Huysveld, S.; Thomassen, G.; Ragaert, K.; Van Geem, K.M.; Roosen, M.; Mys, N.; Dewulf, J.; De Meester, S. | ||||
| Title | Development and application of a predictive modelling approach for household packaging waste flows in sorting facilities | Type | A1 Journal Article | ||
| Year | 2021 | Publication | Waste Management | Abbreviated Journal |
Waste Management |
| Volume | 120 | Issue | Pages | 290-302 | |
| Keywords | A1 Journal Article; Engineering Management (ENM) ; | ||||
| Abstract | Household packaging waste sorting facilities consist of complex networks of processes to separate diverse waste streams. These facilities are a key first step to re-enter materials into the recycling chain. However, so far there are no general methods to predict the performance of such sorting facilities, i.e. how efficiently the heterogeneous packaging waste is sorted into fractions with value for further recycling. In this paper, a model of the material flow in a sorting facility is presented, which allows changing the incoming waste composition, split factors on the sorting units as well as the setup of the sorting facility. The performance of the sorting facility is judged based on the purity of the output material (grade) and the recovery of the input material. A validation of the model was performed via a case study on Belgian post-consumer packaging waste with a selection of typical waste items that can be found in this stream. Moreover, the model was used to predict the possible sorting qualities of future Belgian postconsumer packaging waste after an extension of the allowed waste packaging items in the waste stream. Finally, a sensitivity analysis was performed on the split factors, which are a key data source in the model. Overall, the developed model is flexible and able to predict the performance of packaging waste sorting facilities as well as support waste management and design for recycling decisions, including future design of packaging, to ensure proper sorting and separation. |
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| Publisher | Place of Publication | Editor | |||
| Language | Wos | Publication Date | 2020-12-16 | ||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0956053X | ISBN | Additional Links | ||
| Impact Factor | Times cited | Open Access | Not_Open_Access | ||
| Notes | We would like to thank Indaver (https://www.indaver.com/been/home/), especially Erik Huybrechts, Eric Goddaert, Eline Meyvis and Erik Moerman, for their great support on this research. Furthermore, we would like to acknowledge the help of Colruyt (https://www.colruyt.be/) and CEFLEX (https://ceflex.eu/) for the pre-studies for this research. Moreover, we would like to show our appreciation for the financial support by the Catalisti-ICON project (HBC.2018.0262) MATTER (Mechanical and Thermochemical Recycling of mixed plastic waste) funded by Flanders Innovation & Entrepreneurship (VLAIO). We also thank the Interreg 2 Seas program PlastiCity that is co-funded by the European Regional Development Fund under subsidy contract No. 2S05-021 and the province of East-Flanders for funding this research. | Approved | Most recent IF: NA | ||
| Call Number | ENM @ enm @ | Serial | 6667 | ||
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| Author | Dubois, M.; Hoogmartens, R.; Van Passel, S.; Van Acker, K.; Vanderreydt, I. | ||||
| Title | Innovative market-based policy instruments for waste management : a case study on shredder residues in Belgium | Type | A1 Journal article | ||
| Year | 2015 | Publication | Waste Management & Research | Abbreviated Journal |
Waste Manage Res |
| Volume | 33 | Issue | 10 | Pages | 886-893 |
| Keywords | A1 Journal article; Economics; Engineering Management (ENM) | ||||
| Abstract | In an increasingly complex waste market, market-based policy instruments, such as disposal taxes, can give incentives for sustainable progress while leaving flexibility for innovation. However, implementation of disposal taxes is often criticised by domestic waste handlers that fear to be outcompeted by competitors in other countries. The article discusses three innovative market-based instruments that limit the impact on international competitiveness: Tradable recycling credits, refunded disposal taxes and differentiated disposal taxes. All three instruments have already been implemented for distinct environmental policies in Europe. In order to illustrate how these instruments can be used for waste policy, the literature review is complemented with a case study on shredder residues from metal-containing waste streams in Belgium. The analysis shows that a conventional disposal tax remains the most efficient, simple and transparent instrument. However, if international competition is a significant issue or if political support is weak, refunded and differentiated disposal taxes can have an added value as second-best instruments. Tradable recycling credits are not an appropriate instrument for use in small waste markets with market power. In addition, refunded taxes create similar incentives, but induce lower transactions costs. | ||||
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| Language | Wos | 000361818000004 | Publication Date | 2015-09-22 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0734-242x; 1096-3669 | ISBN | Additional Links | UA library record; WoS full record | |
| Impact Factor | 1.803 | Times cited | 1 | Open Access | |
| Notes | ; The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: The research has been funded by the Flemish Government through the policy research centres programme. ; | Approved | Most recent IF: 1.803; 2015 IF: 1.297 | ||
| Call Number | UA @ admin @ c:irua:129876 | Serial | 6217 | ||
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| Author | Hoogmartens, R.; Eyckmans, J.; Van Passel, S. | ||||
| Title | Landfill taxes and enhanced waste management : combining valuable practices with respect to future waste streams | Type | A1 Journal article | ||
| Year | 2016 | Publication | Waste Management | Abbreviated Journal |
Waste Manage |
| Volume | 55 | Issue | Pages | 345-354 | |
| Keywords | A1 Journal article; Engineering Management (ENM) | ||||
| Abstract | Both landfill taxes and Enhanced Waste Management (EWM) practices can mitigate the scarcity issue of landfill capacity by respectively reducing landfilled waste volumes and valorising future waste streams. However, high landfill taxes might erode incentives for EWM, even though EWM creates value by valorising waste. Concentrating on Flanders (Belgium), the paper applies dynamic optimisation modelling techniques to analyse how landfill taxation and EWM can reinforce each other and how taxation schemes can be adjusted in order to foster sustainable and welfare maximising ways of processing future waste streams. Based on the Flemish simulation results, insights are offered that are generally applicable in international waste and resource management policy. As shown, the optimal Flemish landfill tax that optimises welfare in the no EWM scenario is higher than the one in the EWM scenario (93 against (sic)50/ton). This difference should create incentives for applying EWM and is driven by the positive external effects that are generated by EWM practices. In Flanders, as the current landfill tax is slightly lower than these optimal levels, the choice that can be made is to further increase taxation levels or show complete commitment to EWM. A first generally applicable insight that was found points to the fact that it is not necessarily the case that the higher the landfill tax, the more effective waste management improvements can be realised. Other insights are about providing sufficient incentives for applying EMW practices and formulating appropriate pleas in support of technological development. By these insights, this paper should provide relevant information that can assist in triggering the transition towards a resource efficient, circular economy in Europe. (C) 2016 Elsevier Ltd. All rights reserved. | ||||
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| Language | Wos | 000381535200036 | Publication Date | 2016-04-05 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0956-053x | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles; WoS full record; WoS citing articles | |
| Impact Factor | 4.03 | Times cited | 5 | Open Access | |
| Notes | ; ; | Approved | Most recent IF: 4.03 | ||
| Call Number | UA @ admin @ c:irua:137150 | Serial | 6222 | ||
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| Author | Danthurebandara, M.; Van Passel, S.; Vanderreydt, I.; Van Acker, K. | ||||
| Title | Environmental and economic performance of plasma gasification in Enhanced Landfill Mining | Type | A1 Journal article | ||
| Year | 2015 | Publication | Waste Management | Abbreviated Journal |
Waste Manage |
| Volume | 45 | Issue | Pages | 458-467 | |
| Keywords | A1 Journal article; Economics; Engineering sciences. Technology; Engineering Management (ENM) | ||||
| Abstract | This paper describes an environmental and economic assessment of plasma gasification, one of the viable candidates for the valorisation of refuse derived fuel from Enhanced Landfill Mining. The study is based on life cycle assessment and life cycle costing. Plasma gasification is benchmarked against conventional incineration, and the study indicates that the process could have significant impact on climate change, human toxicity, particulate matter formation, metal depletion and fossil depletion. Flue gas emission, oxygen usage and disposal of residues (plasmastone) are the major environmental burdens, while electricity production and metal recovery represent the major benefits. Reductions in burdens and improvements in benefits are found when the plasmastone is valorised in building materials instead of landfilling. The study indicates that the overall environmental performance of plasma gasification is better than incineration. The study confirms a trade-off between the environmental and economic performance of the discussed scenarios. Net electrical efficiency and investment cost of the plasma gasification process and the selling price of the products are the major economic drivers. | ||||
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| Language | Wos | 000364796800050 | Publication Date | 2015-06-25 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0956-053x | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 4.03 | Times cited | 12 | Open Access | |
| Notes | ; The authors would like to acknowledge the funding of this study by the IWT-O&O ELFM project 'Closing the Circle & Enhanced Landfill Mining as part of the Transition to Sustainable Materials Management' and the valuable discussions with Group Machiels and VITO (Belgium). ; | Approved | Most recent IF: 4.03; 2015 IF: 3.220 | ||
| Call Number | UA @ admin @ c:irua:129875 | Serial | 6197 | ||
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| Author | Einhäupl, P.V.; Krook, J.; Svensson, N.; Van Acker, K.; Van Passel, S. | ||||
| Title | Eliciting stakeholder needs : an anticipatory approach assessing enhanced landfill mining | Type | A1 Journal article | ||
| Year | 2019 | Publication | Waste Management | Abbreviated Journal |
Waste Manage |
| Volume | 98 | Issue | 98 | Pages | 113-125 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Engineering Management (ENM) | ||||
| Abstract | Landfill owners, governmental institutions, technology providers, academia and local communities are important stakeholders involved in Enhanced Landfill Mining (ELFM). This concept of excavating and processing historical waste streams to higher added values can be seen as a continuation of traditional landfill mining (LFM) and seems to be an innovative and promising idea for potential environmental and societal benefits. However, ELFM's profitability is still under debate, and environmental as well as societal impacts have to be further investigated. This study provides a first step towards an anticipatory approach, assessing ELFM through stakeholder integration. In the study, semi-structured interviews were conducted with various stakeholders, involved in a case study in Flanders, Belgium. Participants were selected across a quadruple helix (QH) framework, i.e. industrial, governmental, scientific, and local community actors. The research comprises 13 interviews conducted with an aim to elicit stakeholder needs for ELFM implementation using a general inductive approach. In total 18 different stakeholder needs were identified. The paper explains how the stakeholder needs refer to the different dimensions of sustainability, which groups of stakeholders they primarily affect, and what types of uncertainty could be influenced by their implementation. The stakeholder needs are structured into societal, environmental, regulatory and techno-economic needs. Results show additional economic, environmental, and societal aspects of ELFM to be integrated into ELFM research, as well as a need for the dynamic modeling of impacts. (C) 2019 Elsevier Ltd. All rights reserved. | ||||
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| Language | Wos | 000487175500012 | Publication Date | 2019-08-21 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0956-053x | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 4.03 | Times cited | 3 | Open Access | |
| Notes | ; This project has received funding from the European Union's EU Framework Programme for Research and Innovation Horizon 2020 under Grant Agreement No 721185. ; | Approved | Most recent IF: 4.03 | ||
| Call Number | UA @ admin @ c:irua:163760 | Serial | 6193 | ||
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| Author | Danthurebandara, M.; Van Passel, S.; Vanderreydt, I.; Van Acker, K. | ||||
| Title | Assessment of environmental and economic feasibility of Enhanced Landfill Mining | Type | A1 Journal article | ||
| Year | 2015 | Publication | Waste Management | Abbreviated Journal |
Waste Manage |
| Volume | 45 | Issue | Pages | 434-447 | |
| Keywords | A1 Journal article; Economics; Engineering Management (ENM) | ||||
| Abstract | This paper addresses the environmental and economic performance of Enhanced Landfill Mining (ELFM). Based on life cycle assessment and life cycle costing, a detailed model is developed and is applied to a case study, i.e. the first ELFM project in Belgium. The environmental and economic analysis is performed in order to study the valorisation of different waste types in the landfill, such as municipal solid waste, industrial waste and total waste. We found that ELFM is promising for the case study landfill as greater environmental benefits are foreseen in several impact categories compared to the landfills current situation (the Do-nothing scenario). Among the considered processes, the thermal treatment process dominates both the environmental and economic performances of ELFM. Improvements in the electrical efficiency of thermal treatment process, the calorific value of refuse derived fuel and recovery efficiencies of different waste fractions lead the performance of ELFM towards an environmentally sustainable and economically feasible direction. Although the environmental and economic profiles of ELFM will differ from case to case, the results of this analysis can be used as a benchmark for future ELFM projects. | ||||
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| Language | Wos | 000364796800048 | Publication Date | 2015-02-21 | |
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| Series Volume | Series Issue | Edition | |||
| ISSN | 0956-053x | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 4.03 | Times cited | 30 | Open Access | |
| Notes | ; The authors would like to acknowledge the funding of this study by the IWT-O&O ELFM project 'Closing the Circle & Enhanced Landfill Mining as part of the Transition to Sustainable Materials Management' and the valuable discussions with Group Machiels (Belgium). ; | Approved | Most recent IF: 4.03; 2015 IF: 3.220 | ||
| Call Number | UA @ admin @ c:irua:129878 | Serial | 6156 | ||
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| Author | Thomassen, G.; Van Passel, S.; Alaerts, L.; Dewulf, J. | ||||
| Title | Retrospective and prospective material flow analysis of the post-consumer plastic packaging waste management system in Flanders | Type | A1 Journal article | ||
| Year | 2022 | Publication | Waste Management | Abbreviated Journal |
Waste Manage |
| Volume | 147 | Issue | Pages | 10-21 | |
| Keywords | A1 Journal article; Engineering Management (ENM) | ||||
| Abstract | The post-consumer plastic packaging waste management in Flanders was analyzed by performing a retrospective material flow analysis, covering an extensive period from 1985 to 2019. In addition, a prospective material flow analysis of 32 improvement scenarios was performed, based on expected changes in the waste management system. Mass recovery rates were calculated based on different interpretations of the calculation rules. Moreover, various cascading levels were identified to differentiate between the quality level of the secondary applications. The mass recovery rate including only recycling evolved from a value of 0% in 1985 to 31% in 2019 and could be increased to 36-62% depending on the improvement scenario selected. However, the different interpretations of the calculation rules led to a variation of up to 20 and 41% on this mass recovery rates for the retrospective and prospective analysis, respectively. The introduction of monostream recycling for additional post-consumer plastic packaging flows, such as low-density polyethylene, did not lead to increasing mass recovery rates, if no differentiation for the cascading levels was made. The Belgian recycling target of 65% for 2023 will be challenging if the strictest calculation method needs to be followed or if the improvements in the Flemish postconsumer plastic packaging waste system do not follow the best-case collection scenarios under the given assumptions. To harmonize the calculation and monitoring of these targets, clear calculation rules need to be accompanied with a harmonized monitoring system over the entire waste management system. | ||||
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| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000802961100002 | Publication Date | 2022-05-17 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0956-053x | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 8.1 | Times cited | Open Access | OpenAccess | |
| Notes | Approved | Most recent IF: 8.1 | |||
| Call Number | UA @ admin @ c:irua:188651 | Serial | 7367 | ||
| Permanent link to this record | |||||
| Author | Larraín, M.; Billen, P.; Van Passel, S. | ||||
| Title | The effect of plastic packaging recycling policy interventions as a complement to extended producer responsibility schemes : a partial equilibrium model | Type | A1 Journal article | ||
| Year | 2022 | Publication | Waste Management | Abbreviated Journal |
Waste Manage |
| Volume | 153 | Issue | Pages | 355-366 | |
| Keywords | A1 Journal article; Engineering Management (ENM); Intelligence in PRocesses, Advanced Catalysts and Solvents (iPRACS) | ||||
| Abstract | Extended producer responsibility (EPR) schemes have effectively increased the plastic waste that is separately collected. However, due to the structure of the recycling industry, EPR cannot increase recycling rates up to the target levels.Additional policy instruments to increase recycling rates such as recycled content targets, green dot fees bonus for recycled content, recycling targets and taxes on non-recycled plastic packaging have been discussed on a political level in the last years. However, very little research has quantitatively studied the effectiveness of these policy interventions.Using a partial equilibrium model, this paper examines the effectiveness of the implementation of the aforementioned policy instruments to increase recycling rates and the impact on different stakeholders of the value chain: plastic producers, consumers, producer responsibility organization and recyclers.Results show that direct interventions (recycled content standards and recycling targets) have the benefit of decoupling the recycling industry from external markets such as the oil market. They can be a good starting point to increase recycling, but in the long term they may be restricting by not presenting incentives to achieve recycling levels beyond the targeted amounts and by limiting technological innovation. On the contrary, eco-nomic interventions such as a green dot fee bonus or a packaging tax create economic incentives for recycling. However, these incentives are diminished by the lower perceived quality of packaging with higher recycled content levels. | ||||
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| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000868915000004 | Publication Date | 2022-09-30 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0956-053x | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 8.1 | Times cited | Open Access | Not_Open_Access | |
| Notes | Approved | Most recent IF: 8.1 | |||
| Call Number | UA @ admin @ c:irua:191367 | Serial | 7370 | ||
| Permanent link to this record | |||||
| Author | Ignatova, V.A.; van Vaeck, L.; Gijbels, R.; Adams, F. | ||||
| Title | Capabilities and limitations of Fourier transform laser microprobe mass spectrometry for molecular analysis of solids | Type | A1 Journal article | ||
| Year | 2002 | Publication | Vacuum | Abbreviated Journal |
Vacuum |
| Volume | 69 | Issue | Pages | 307-313 | |
| Keywords | A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) | ||||
| Abstract | Fourier transform laser microprobe mass spectrometry (FT LMMS) has been developed for the molecular analysis of both organic and inorganic components at the surface of microobjects with the ultimate specificity of high-mass resolution. These capabilities are needed in numerous applications of practical material analysis, such as tracing back anomalies in microobjects. The purpose of this paper is to address representative example from industrial trouble shooting, in which organic and inorganic analytes in a single microparticle have been identified unambiguously. This motivates the research to extend the methodology towards quantification. This paper deals with the fundamental aspect of information depth, specifically for inorganic molecular adduct ions. Finally, data will show the quantitative capabilities of FT LMMS. A suitable methodology for the preparation of reference specimens has allowed the empirical calibration of the response as a function of the local concentration to be achieved. | ||||
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| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000180739000050 | Publication Date | 2002-12-30 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0042-207X; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 1.53 | Times cited | 4 | Open Access | |
| Notes | Approved | Most recent IF: 1.53; 2002 IF: 0.723 | |||
| Call Number | UA @ lucian @ c:irua:43192 | Serial | 274 | ||
| Permanent link to this record | |||||
| Author | Deveirman, A.; van Landuyt, J.; Vanhellemont, J.; Maes, H.E.; Yallup, K. | ||||
| Title | Defects in high-dose oxygen implanted silicon : a TEM study | Type | A1 Journal article | ||
| Year | 1991 | Publication | Vacuum: the international journal and abstracting service for vacuum science and technology T2 – 1ST SIOMX WORKSHOP ( SEPARATION BY IMPLANTATION OF OXYGEN ) ( SWI-88 ), NOV 07-08, 1988, UNIV SURREY, GUILDFORD, ENGLAND | Abbreviated Journal |
Vacuum |
| Volume | 42 | Issue | 5-6 | Pages | 367-369 |
| Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
| Abstract | Results are discussed of a transmission electron microscopy study of high-dose oxygen implanted silicon. In addition to the general high temperature (> 1200-degrees-C) annealing treatments also annealings at 'low' temperatures (1000-1100-degrees-C) were performed in order to slow down the precipitate and defect reactions. The observed dissolution of the oxide precipitates during prolonged high temperature annealing is explained by critical radius considerations. Threading dislocations are the remaining lattice defects in the silicon overlayer and cannot be removed by further annealing. Low temperature annealing results in the formation and subsequent unfaulting of extrinsic stacking fault loops below the buried oxide layer. | ||||
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| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Oxford | Editor | ||
| Language | Wos | A1991EV61700007 | Publication Date | 2002-10-19 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0042-207X; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 1.858 | Times cited | 4 | Open Access | |
| Notes | Approved | MATERIALS SCIENCE, MULTIDISCIPLINARY 96/271 Q2 # | |||
| Call Number | UA @ lucian @ c:irua:104022 | Serial | 629 | ||
| Permanent link to this record | |||||
| Author | Kalitzova, M.; Vlakhov, E.; Marinov, Y.; Gesheva, K.; Ignatova, V.A.; Lebedev, O.; Muntele, C.; Gijbels, R. | ||||
| Title | Effect of high-frequency electromagnetic field on Te+-implanted (001) Si</tex> | Type | A1 Journal article | ||
| Year | 2004 | Publication | Vacuum: the international journal and abstracting service for vacuum science and technology | Abbreviated Journal |
Vacuum |
| Volume | 76 | Issue | 2-3 | Pages | 325-328 |
| Keywords | A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) | ||||
| Abstract | The analysis of high-frequency electromagnetic field (HFEMF) effects on the microstructure and electrical properties of Te+ implanted (0 0 1) Si is reported. Cross-sectional high-resolution transmission electron microscopy (XHRTEM) demonstrates the formation of Te nanoclusters (NCs) embedded in the Si layer amorphized by implantation (a-Si) at fluences greater than or equal to 1 x 10(16) cm(-2). Post-implantation treatment with 0.45 MHz HFEMF leads to enlargement of Te NCs, their diffusion and accumulation at the a-Si surface and formation of laterally connected extended tellurium structures above the percolation threshold, appearing at an ion fluence of 1 x 10(17) cm(-2). AC electrical conductivity measurements show nearly four orders of magnitude decrease of impedance resistivity in this case, which is in good agreement with the results of our structural studies. The results obtained are discussed in terms of the two-phase isotropic spinodal structure. (C) 2004 Elsevier Ltd. All rights reserved. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Oxford | Editor | ||
| Language | Wos | 000224890100048 | Publication Date | 2004-08-21 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0042-207X; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 1.53 | Times cited | 2 | Open Access | |
| Notes | Approved | Most recent IF: 1.53; 2004 IF: 0.902 | |||
| Call Number | UA @ lucian @ c:irua:95105 | Serial | 814 | ||
| Permanent link to this record | |||||
| Author | Bogaerts, A.; Gijbels, R. | ||||
| Title | Numerical modelling of gas discharge plasmas for various applications | Type | A1 Journal article | ||
| Year | 2003 | Publication | Vacuum: surface engineering, surface instrumentation & vacuum technology | Abbreviated Journal |
Vacuum |
| Volume | 69 | Issue | Pages | 37-52 | |
| Keywords | A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) | ||||
| Abstract | Gas discharge plasmas are used for a wide range of applications. To improve our understanding about gas discharges, which is necessary to obtain good results in the various application fields, we perform numerical modelling of gas discharge plasmas. Various kinds of modelling approaches, for various types of gas discharges, are being used in our group. In this paper, some examples of this modelling work are outlined. (C) 2002 Elsevier Science Ltd. All rights reserved. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Oxford | Editor | ||
| Language | Wos | 000180739000006 | Publication Date | 2002-12-30 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0042-207X; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 1.53 | Times cited | 16 | Open Access | |
| Notes | Approved | Most recent IF: 1.53; 2003 IF: 0.612 | |||
| Call Number | UA @ lucian @ c:irua:40194 | Serial | 2401 | ||
| Permanent link to this record | |||||
| Author | Muhammad, S.; Wuyts, K.; Nuyts, G.; De Wael, K.; Samson, R. | ||||
| Title | Characterization of epicuticular wax structures on leaves of urban plant species and its association with leaf wettability | Type | A1 Journal article | ||
| Year | 2020 | Publication | Urban Forestry & Urban Greening | Abbreviated Journal |
Urban For Urban Gree |
| Volume | 47 | Issue | 47 | Pages | 126557 |
| Keywords | A1 Journal article; Engineering sciences. Technology; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) | ||||
| Abstract | Epicuticular wax (EW) protects the plant’s integrity and acts as a barrier against biotic and abiotic stresses. The micro-structured three-dimensional EW’s and presence of leaf trichomes influence the wettability of a leaf surface. In this study, leaves of 96 perennial urban plant species were examined to determine an association between epicuticular wax structure (EWS) types and leaf wettability and investigate their seasonal variation. The EWS types were identified using Scanning Electron Microscopy (SEM), while leaf wettability was analyzed by measuring the drop contact angle (DCA) on both the abaxial and the adaxial sides of leaves collected from a common garden in June and September 2016. Four distinct EWS types namely thin film, platelets, crusts, and tubules were observed on leaves of investigated plant species in both June and September. The EWS types varied significantly between functional plant types and plant families in both June and September. In June, the abaxial DCA ranged from 56° to 147°, and the adaxial DCA ranged from 56° to 136°. In September, the abaxial DCA ranged from 54° to 130°, and the adaxial DCA ranged from 51° to 125°. The effect of time, leaf side, and EWS type on leaf wettability were significant. Plant species which showed a change in EWS type or clustering from June to September did not show a more pronounced reduction in DCA compared to those species which exhibited a constant EWS type. Findings from our study illustrate that DCA is not a good indicator in determining the different EWS types due to overlapping DCA intervals between the identified EWS types. However, the identified EWS types remained fairly stable throughout the in-leaf season and do not require repeated measurements for characterization. | ||||
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| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000508389000028 | Publication Date | 2019-12-05 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1618-8667 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 6.4 | Times cited | 5 | Open Access | |
| Notes | ; The research was funded by the Ontario Student Assistance Program (OSAP # 15103399). The SEM equipment was funded by FWO/Hercules. The authors acknowledge the help of the ENdEMIC group involved in the upkeep of the experimental site. The authors would like to thank the anonymous reviewers for their critical comments and constructive suggestions in improving the quality of the article. ; | Approved | Most recent IF: 6.4; 2020 IF: 2.113 | ||
| Call Number | UA @ admin @ c:irua:164906 | Serial | 5504 | ||
| Permanent link to this record | |||||
| Author | Koch, K.; Ysebaert, T.; Denys, S.; Samson, R. | ||||
| Title | Urban heat stress mitigation potential of green walls: A review | Type | A1 Journal article | ||
| Year | 2020 | Publication | Urban Forestry & Urban Greening | Abbreviated Journal |
Urban For Urban Gree |
| Volume | 55 | Issue | Pages | 126843-13 | |
| Keywords | A1 Journal article; Engineering sciences. Technology; Art; Sustainable Energy, Air and Water Technology (DuEL) | ||||
| Abstract | Cities with resilience to climate change appear to be a vision of the future, but are inevitable to ensure the quality of life for citizens and to avoid an increase in civilian mortality. Urban green infrastructure (UGI), with the focus on vertical green, poses a beneficial mitigation and adaptation strategy for challenges such as climate change through cooling effects on building and street level. This review article explores recent literature regarding this considerable topic and investigates how green walls can be applied to mitigate this problem. Summary tables (see additional information) and figures are presented that can be used by policy makers and researchers to make informed decisions when installing green walls in built-up environments. At last, knowledge gaps are uncovered that need further investigation to exploit the benefits at its best. | ||||
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| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000593921600001 | Publication Date | 2020-09-25 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1618-8667 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 6.4 | Times cited | Open Access | ||
| Notes | Approved | Most recent IF: 6.4; 2020 IF: 2.113 | |||
| Call Number | UA @ admin @ c:irua:172985 | Serial | 6650 | ||
| Permanent link to this record | |||||
| Author | Ysebaert, T.; Koch, K.; Samson, R.; Denys, S. | ||||
| Title | Green walls for mitigating urban particulate matter pollution : a review | Type | A1 Journal article | ||
| Year | 2021 | Publication | Urban Forestry & Urban Greening | Abbreviated Journal |
Urban For Urban Gree |
| Volume | 59 | Issue | Pages | 127014 | |
| Keywords | A1 Journal article; Engineering sciences. Technology; Art; Sustainable Energy, Air and Water Technology (DuEL) | ||||
| Abstract | Air pollution caused by particulate matter (PM) is a well-known health issue in urban environments. Urban green infrastructure offers opportunities as a nature-based solution to urban PM pollution. Green walls have advantages over other types of urban green infrastructure, since they can be applied to the enormous available wall area in cities and since they do not interfere with the prevailing ventilation resulting in elevated PM levels. However, this has raised questions about the effectiveness of GW in removing PM and this could explain the limited applicability of green walls to tackle PM pollution. Nevertheless, it is suggested that green walls have a significant unexploited potential and this review article aims to address current knowledge gaps and to propose future research requirements for the implementation of green walls to mitigate urban PM pollution. An in-depth analysis is given of the mechanisms behind PM deposition and the influence of vegetation properties on this process, as well as the practices followed to model PM dispersion and deposition. It was suggested that particle deposition on green walls depends on the green wall species, pollution level, and the residence time of PM in a street (canyon). Rainfall plays an important role in the PM pathway, although it is not a necessary requirement to sustain PM deposition on plant leaves. There are still some discrepancies in the literature about the ideal plant characteristics for PM deposition in terms of the macro- and microstructures that require further investigation, especially in comparison with tree and shrub species. In addition, extensively validated models are required to accurately calculate the impact of green walls on air flow and the PM concentration on site. | ||||
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| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000632597600001 | Publication Date | 2021-02-06 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1618-8667 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 2.113 | Times cited | Open Access | OpenAccess | |
| Notes | Approved | Most recent IF: 2.113 | |||
| Call Number | UA @ admin @ c:irua:175581 | Serial | 8011 | ||
| Permanent link to this record | |||||
| Author | Batenburg, K.J.; Bals, S.; Sijbers, J.; Kübel, C.; Midgley, P.A.; Hernandez, J.C.; Kaiser, U.; Encina, E.R.; Coronado, E.A.; Van Tendeloo, G. | ||||
| Title | 3D imaging of nanomaterials by discrete tomography | Type | A1 Journal article | ||
| Year | 2009 | Publication | Ultramicroscopy | Abbreviated Journal |
Ultramicroscopy |
| Volume | 109 | Issue | 6 | Pages | 730-740 |
| Keywords | A1 Journal article; Electron microscopy for materials research (EMAT); Vision lab | ||||
| Abstract | The field of discrete tomography focuses on the reconstruction of samples that consist of only a few different materials. Ideally, a three-dimensional (3D) reconstruction of such a sample should contain only one grey level for each of the compositions in the sample. By exploiting this property in the reconstruction algorithm, either the quality of the reconstruction can be improved significantly, or the number of required projection images can be reduced. The discrete reconstruction typically contains fewer artifacts and does not have to be segmented, as it already contains one grey level for each composition. Recently, a new algorithm, called discrete algebraic reconstruction technique (DART), has been proposed that can be used effectively on experimental electron tomography datasets. In this paper, we propose discrete tomography as a general reconstruction method for electron tomography in materials science. We describe the basic principles of DART and show that it can be applied successfully to three different types of samples, consisting of embedded ErSi2 nanocrystals, a carbon nanotube grown from a catalyst particle and a single gold nanoparticle, respectively. | ||||
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| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Amsterdam | Editor | ||
| Language | Wos | 000265816400005 | Publication Date | 2009-02-01 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0304-3991; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 2.843 | Times cited | 220 | Open Access | |
| Notes | Fwo; Esteem 026019 | Approved | Most recent IF: 2.843; 2009 IF: 2.067 | ||
| Call Number | UA @ lucian @ c:irua:74665 c:irua:74665 | Serial | 12 | ||
| Permanent link to this record | |||||
| Author | Bertoni, G.; Verbeeck, J. | ||||
| Title | Accuracy and precision in model based EELS quantification | Type | A1 Journal article | ||
| Year | 2008 | Publication | Ultramicroscopy | Abbreviated Journal |
Ultramicroscopy |
| Volume | 108 | Issue | 8 | Pages | 782-790 |
| Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
| Abstract | We present results on model based quantification of electron energy loss spectra (EELS), focusing on the factors that influence accuracy and precision in determining chemical concentrations. Several sources of systematical errors are investigated. The spectrometer entrance aperture determines the collection angle, and the effects of its position with respect to the transmitted beam are investigated, taking into account the diffraction by the crystal structure. The effect of the orientation of the sample is tested experimentally and theoretically on SrTiO3, and finally, a simulated experiment on c-BN at different thicknesses confirms the superior results of the model based method with respect to the conventional method. A test on a set of experimental reference compounds is presented, showing that remarkably good accuracy can be obtained. Recommendations are given to achieve high accuracy and precision in practice. (C) 2008 Elsevier B.V. All rights reserved. | ||||
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| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Amsterdam | Editor | ||
| Language | Wos | 000258241900010 | Publication Date | 2008-02-22 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0304-3991; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 2.843 | Times cited | 44 | Open Access | |
| Notes | Approved | Most recent IF: 2.843; 2008 IF: 2.629 | |||
| Call Number | UA @ lucian @ c:irua:70550UA @ admin @ c:irua:70550 | Serial | 42 | ||
| Permanent link to this record | |||||
| Author | Roelandts, T.; Batenburg, K.J.; Biermans, E.; Kübel, C.; Bals, S.; Sijbers, J. | ||||
| Title | Accurate segmentation of dense nanoparticles by partially discrete electron tomography | Type | A1 Journal article | ||
| Year | 2012 | Publication | Ultramicroscopy | Abbreviated Journal |
Ultramicroscopy |
| Volume | 114 | Issue | Pages | 96-105 | |
| Keywords | A1 Journal article; Electron microscopy for materials research (EMAT); Vision lab | ||||
| Abstract | Accurate segmentation of nanoparticles within various matrix materials is a difficult problem in electron tomography. Due to artifacts related to image series acquisition and reconstruction, global thresholding of reconstructions computed by established algorithms, such as weighted backprojection or SIRT, may result in unreliable and subjective segmentations. In this paper, we introduce the Partially Discrete Algebraic Reconstruction Technique (PDART) for computing accurate segmentations of dense nanoparticles of constant composition. The particles are segmented directly by the reconstruction algorithm, while the surrounding regions are reconstructed using continuously varying gray levels. As no properties are assumed for the other compositions of the sample, the technique can be applied to any sample where dense nanoparticles must be segmented, regardless of the surrounding compositions. For both experimental and simulated data, it is shown that PDART yields significantly more accurate segmentations than those obtained by optimal global thresholding of the SIRT reconstruction. | ||||
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| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Amsterdam | Editor | ||
| Language | Wos | 000301954300011 | Publication Date | 2012-01-06 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0304-3991; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 2.843 | Times cited | 34 | Open Access | |
| Notes | Fwo | Approved | Most recent IF: 2.843; 2012 IF: 2.470 | ||
| Call Number | UA @ lucian @ c:irua:97710 | Serial | 52 | ||
| Permanent link to this record | |||||
| Author | van den Broek, W.; Verbeeck, J.; de Backer, S.; Scheunders, P.; Schryvers, D. | ||||
| Title | Acquisition of the EELS data cube by tomographic reconstruction | Type | A1 Journal article | ||
| Year | 2006 | Publication | Ultramicroscopy | Abbreviated Journal |
Ultramicroscopy |
| Volume | 106 | Issue | 4/5 | Pages | 269-276 |
| Keywords | A1 Journal article; Electron microscopy for materials research (EMAT); Vision lab | ||||
| Abstract | Energy filtered TEM, EFTEM, provides three-dimensional data, two spatial and one spectral dimension. We propose to acquire these data by measuring a series of images with a defocused energy filter. It will be shown that each image is a projection of the data on the detector and that reconstruction of the data out of a sufficient number of such projections using a tomographic reconstruction algorithm is possible. This technique uses only a fraction of the electron dose an energy filtered series (EFS) needs for the same spectral and spatial resolution and the same mean signal-to-noise ratio. (c) 2005 Elsevier B.V. All rights reserved. | ||||
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| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Amsterdam | Editor | ||
| Language | Wos | 000236042300003 | Publication Date | 2005-11-30 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0304-3991; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 2.843 | Times cited | 6 | Open Access | |
| Notes | Approved | Most recent IF: 2.843; 2006 IF: 1.706 | |||
| Call Number | UA @ lucian @ c:irua:56910UA @ admin @ c:irua:56910 | Serial | 55 | ||
| Permanent link to this record | |||||
| Author | Goris, B.; Roelandts, T.; Batenburg, K.J.; Heidari Mezerji, H.; Bals, S. | ||||
| Title | Advanced reconstruction algorithms for electron tomography : from comparison to combination | Type | A1 Journal article | ||
| Year | 2013 | Publication | Ultramicroscopy | Abbreviated Journal |
Ultramicroscopy |
| Volume | 127 | Issue | Pages | 40-47 | |
| Keywords | A1 Journal article; Electron microscopy for materials research (EMAT); Vision lab | ||||
| Abstract | In this work, the simultaneous iterative reconstruction technique (SIRT), the total variation minimization (TVM) reconstruction technique and the discrete algebraic reconstruction technique (DART) for electron tomography are compared and the advantages and disadvantages are discussed. Furthermore, we describe how the result of a three dimensional (3D) reconstruction based on TVM can provide objective information that is needed as the input for a DART reconstruction. This approach results in a tomographic reconstruction of which the segmentation is carried out in an objective manner. | ||||
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| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Amsterdam | Editor | ||
| Language | Wos | 000316659100007 | Publication Date | 2012-08-02 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0304-3991; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 2.843 | Times cited | 63 | Open Access | |
| Notes | Fwo | Approved | Most recent IF: 2.843; 2013 IF: 2.745 | ||
| Call Number | UA @ lucian @ c:irua:101217 | Serial | 72 | ||
| Permanent link to this record | |||||
| Author | Wang, A.; Turner, S.; Van Aert, S.; van Dyck, D. | ||||
| Title | An alternative approach to determine attainable resolution directly from HREM images | Type | A1 Journal article | ||
| Year | 2013 | Publication | Ultramicroscopy | Abbreviated Journal |
Ultramicroscopy |
| Volume | 133 | Issue | Pages | 50-61 | |
| Keywords | A1 Journal article; Electron microscopy for materials research (EMAT); Vision lab | ||||
| Abstract | The concept of resolution in high-resolution electron microscopy (HREM) is the power to resolve neighboring atoms. Since the resolution is related to the width of the point spread function of the microscope, it could in principle be determined from the image of a point object. However, in electron microscopy there are no ideal point objects. The smallest object is an individual atom. If the width of an atom is much smaller than the resolution of the microscope, this atom can still be considered as a point object. As the resolution of the microscope enters the sub-Å regime, information about the microscope is strongly entangled with the information about the atoms in HREM images. Therefore, we need to find an alternative method to determine the resolution in an object-independent way. In this work we propose to use the image wave of a crystalline object in zone axis orientation. Under this condition, the atoms of a column act as small lenses so that the electron beam channels through the atom column periodically. Because of this focusing, the image wave of the column can be much more peaked than the constituting atoms and can thus be a much more sensitive probe to measure the resolution. Our approach is to use the peakiness of the image wave of the atom column to determine the resolution. We will show that the resolution can be directly linked to the total curvature of the atom column wave. Moreover, we can then directly obtain the resolution of the microscope given that the contribution from the object is known, which is related to the bounding energy of the atom. The method is applied on an experimental CaTiO3 image wave. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Amsterdam | Editor | ||
| Language | Wos | 000324471800007 | Publication Date | 2013-05-23 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0304-3991; | ISBN | Additional Links | UA library record; WoS full record | |
| Impact Factor | 2.843 | Times cited | Open Access | ||
| Notes | FWO; Hercules; Esteem2; esteem2_jra2 | Approved | Most recent IF: 2.843; 2013 IF: 2.745 | ||
| Call Number | UA @ lucian @ c:irua:109919 | Serial | 90 | ||
| Permanent link to this record | |||||
| Author | Xu, Q.; Zandbergen, H.W.; van Dyck, D. | ||||
| Title | Applying an information transmission approach to extract valence electron information from reconstructed exit waves | Type | A1 Journal article | ||
| Year | 2011 | Publication | Ultramicroscopy | Abbreviated Journal |
Ultramicroscopy |
| Volume | 111 | Issue | 7 | Pages | 912-919 |
| Keywords | A1 Journal article; Electron microscopy for materials research (EMAT); Vision lab | ||||
| Abstract | The knowledge of the valence electron distribution is essential for understanding the properties of materials. However this information is difficult to obtain from HREM images because it is easily obscured by the large scattering contribution of core electrons and by the strong dynamical scattering process. In order to develop a sensitive method to extract the information of valence electrons, we have used an information transmission approach to describe the electron interaction with the object. The scattered electron wave is decomposed in a set of basic functions, which are the eigen functions of the Hamiltonian of the projected electrostatic object potential. Each basic function behaves as a communication channel that transfers the information of the object with its own transmission characteristic. By properly combining the components of the different channels, it is possible to design a scheme to extract the information of valence electron distribution from a series of exit waves. The method is described theoretically and demonstrated by means of computer simulations. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Amsterdam | Editor | ||
| Language | Wos | 000300461000024 | Publication Date | 2011-02-02 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0304-3991; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 2.843 | Times cited | 1 | Open Access | |
| Notes | Fwo | Approved | Most recent IF: 2.843; 2011 IF: 2.471 | ||
| Call Number | UA @ lucian @ c:irua:93623 | Serial | 146 | ||
| Permanent link to this record | |||||
| Author | de Backer, A.; Martinez, G.T.; Rosenauer, A.; Van Aert, S. | ||||
| Title | Atom counting in HAADF STEM using a statistical model-based approach : methodology, possibilities, and inherent limitations | Type | A1 Journal article | ||
| Year | 2013 | Publication | Ultramicroscopy | Abbreviated Journal |
Ultramicroscopy |
| Volume | 134 | Issue | Pages | 23-33 | |
| Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
| Abstract | In the present paper, a statistical model-based method to count the number of atoms of monotype crystalline nanostructures from high resolution high-angle annular dark-field (HAADF) scanning transmission electron microscopy (STEM) images is discussed in detail together with a thorough study on the possibilities and inherent limitations. In order to count the number of atoms, it is assumed that the total scattered intensity scales with the number of atoms per atom column. These intensities are quantitatively determined using model-based statistical parameter estimation theory. The distribution describing the probability that intensity values are generated by atomic columns containing a specific number of atoms is inferred on the basis of the experimental scattered intensities. Finally, the number of atoms per atom column is quantified using this estimated probability distribution. The number of atom columns available in the observed STEM image, the number of components in the estimated probability distribution, the width of the components of the probability distribution, and the typical shape of a criterion to assess the number of components in the probability distribution directly affect the accuracy and precision with which the number of atoms in a particular atom column can be estimated. It is shown that single atom sensitivity is feasible taking the latter aspects into consideration. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Amsterdam | Editor | ||
| Language | Wos | 000324474900005 | Publication Date | 2013-05-17 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0304-3991; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 2.843 | Times cited | 48 | Open Access | |
| Notes | FWO; Esteem2; FP 2007-2013; esteem2_jra2 | Approved | Most recent IF: 2.843; 2013 IF: 2.745 | ||
| Call Number | UA @ lucian @ c:irua:109916 | Serial | 162 | ||
| Permanent link to this record | |||||
| Author | Egoavil, R.; Gauquelin, N.; Martinez, G.T.; Van Aert, S.; Van Tendeloo, G.; Verbeeck, J. | ||||
| Title | Atomic resolution mapping of phonon excitations in STEM-EELS experiments | Type | A1 Journal article | ||
| Year | 2014 | Publication | Ultramicroscopy | Abbreviated Journal |
Ultramicroscopy |
| Volume | 147 | Issue | Pages | 1-7 | |
| Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
| Abstract | Atomically resolved electron energy-loss spectroscopy experiments are commonplace in modern aberration-corrected transmission electron microscopes. Energy resolution has also been increasing steadily with the continuous improvement of electron monochromators. Electronic excitations however are known to be delocalized due to the long range interaction of the charged accelerated electrons with the electrons in a sample. This has made several scientists question the value of combined high spatial and energy resolution for mapping interband transitions and possibly phonon excitation in crystals. In this paper we demonstrate experimentally that atomic resolution information is indeed available at very low energy losses around 100 meV expressed as a modulation of the broadening of the zero loss peak. Careful data analysis allows us to get a glimpse of what are likely phonon excitations with both an energy loss and gain part. These experiments confirm recent theoretical predictions on the strong localization of phonon excitations as opposed to electronic excitations and show that a combination of atomic resolution and recent developments in increased energy resolution will offer great benefit for mapping phonon modes in real space. | ||||
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| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Amsterdam | Editor | ||
| Language | Wos | 000343157400001 | Publication Date | 2014-05-29 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0304-3991; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 2.843 | Times cited | 22 | Open Access | |
| Notes | 246102 IFOX; 278510 VORTEX; 246791 COUNTATOMS; Hercules; 312483 ESTEEM2; esteem2jra3 ECASJO; | Approved | Most recent IF: 2.843; 2014 IF: 2.436 | ||
| Call Number | UA @ lucian @ c:irua:118332UA @ admin @ c:irua:118332 | Serial | 177 | ||
| Permanent link to this record | |||||
| Author | Chen, J.H.; van Dyck, D.; op de Beeck, M.; van Landuyt, J. | ||||
| Title | Computational comparisons between the conventional multislice method and the third-order multislice method for calculating high-energy electron diffraction and imaging | Type | A1 Journal article | ||
| Year | 1997 | Publication | Ultramicroscopy | Abbreviated Journal |
Ultramicroscopy |
| Volume | 69 | Issue | Pages | 219-240 | |
| Keywords | A1 Journal article; Electron microscopy for materials research (EMAT); Vision lab | ||||
| Abstract | |||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Amsterdam | Editor | ||
| Language | Wos | A1997YG59500001 | Publication Date | 0000-00-00 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0304-3991 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 2.843 | Times cited | 11 | Open Access | |
| Notes | Approved | Most recent IF: 2.843; 1997 IF: 1.600 | |||
| Call Number | UA @ lucian @ c:irua:21416 | Serial | 455 | ||
| Permanent link to this record | |||||