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“Access to preferential loans for poverty reduction and rural development : evidence from Vietnam”. Lan Thanh Nguyen, Anh Pham Hoai Nguyen, Van Passel S, Azadi H, Lebailly P, Journal Of Economic Issues 52, 246 (2018). http://doi.org/10.1080/00213624.2018.1430953
Abstract: Preferential loans play an important role in the process of reducing poverty in developing countries. Considering the data set from the 2010 Vietnam Household Living Standards Survey, we aim to examine the influential factors in probability of households getting access to preferential loans. Additionally, we analyze the determinants of household income in association with the loans by applying a quantile regression model. Our results show that ethnicity-related factors have the largest marginal effect on the access to preferential loans. The results from the quantile regression model demonstrate that the debt factor has a deeper impact on the borrowing group at the lower quantiles of household income.
Keywords: A1 Journal article; Economics; Engineering Management (ENM)
Impact Factor: 0.581
Times cited: 3
DOI: 10.1080/00213624.2018.1430953
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“Measurement of local crystal lattice strain variations in dealloyed nanoporous gold”. Mahr C, Müller-Caspary K, Graf M, Lackmann A, Grieb T, Schowalter M, Krause FF, Mehrtens T, Wittstock A, Weissmueller J, Rosenauer A, Materials research letters 6, 84 (2018). http://doi.org/10.1080/21663831.2017.1396263
Abstract: Reversible macroscopic length changes in nanoporous structures can be achieved by applying electric potentials or by exposing them to different gases or liquids. Thus, these materials are interesting candidates for applications as sensors or actuators. Macroscopic length changes originate from microscopic changes of crystal lattice parameters. In this report, we show spatially resolved measurements of crystal lattice strain in dealloyed nanoporous gold. The results confirm theory by indicating a compression of the lattice along the axis of cylindrically shaped ligaments and an expansion in radial direction. Furthermore, we show that curved npAu surfaces show inward relaxation of the surface layer. [GRAPHICS] .
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
Impact Factor: 4.773
Times cited: 4
DOI: 10.1080/21663831.2017.1396263
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“Approaching the limits of cationic and anionic electrochemical activity with the Li-rich layered rocksalt Li3IrO4”. Perez AJ, Jacquet Q, Batuk D, Iadecola A, Saubanere M, Rousse G, Larcher D, Vezin H, Doublet M-L, Tarascon J-M, Nature energy 2, 954 (2017). http://doi.org/10.1038/S41560-017-0042-7
Abstract: The Li-rich rocksalt oxides Li2MO3 (M = 3d/4d/5d transition metal) are promising positive-electrode materials for Li-ion batteries, displaying capacities exceeding 300 mAh g(-1) thanks to the participation of the oxygen non-bonding O(2p) orbitals in the redox process. Understanding the oxygen redox limitations and the role of the O/M ratio is therefore crucial for the rational design of materials with improved electrochemical performances. Here we push oxygen redox to its limits with the discovery of a Li3IrO4 compound (O/M = 4) that can reversibly take up and release 3.5 electrons per Ir and possesses the highest capacity ever reported for any positive insertion electrode. By quantitatively monitoring the oxidation process, we demonstrate the material's instability against O-2 release on removal of all Li. Our results show that the O/M parameter delineates the boundary between the material's maximum capacity and its stability, hence providing valuable insights for further development of high-capacity materials.
Keywords: A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT)
Times cited: 55
DOI: 10.1038/S41560-017-0042-7
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“Integration of a photocatalytic multi-tube reactor for indoor air purification in HVAC systems : a feasibility study”. van Walsem J, Roegiers J, Modde B, Lenaerts S, Denys S, Environmental Science and Pollution Research 25, 18015 (2018). http://doi.org/10.1007/S11356-018-2017-Z
Abstract: This work is focused on an in-depth experimental characterization of multi-tube reactors for indoor air purification integrated in ventilation systems. Glass tubes were selected as an excellent photocatalyst substrate to meet the challenging requirements of the operating conditions in a ventilation system in which high flow rates are typical. Glass tubes show a low-pressure drop which reduces the energy demand of the ventilator, and additionally, they provide a large exposed surface area to allow interaction between indoor air contaminants and the photocatalyst. Furthermore, the performance of a range of P25-loaded sol-gel coatings was investigated, based on their adhesion properties and photocatalytic activities. Moreover, the UV light transmission and photocatalytic reactor performance under various operating conditions were studied. These results provide vital insights for the further development and scaling up of multi-tube reactors in ventilation systems which can provide a better comfort, improved air quality in indoor environments, and reduced human exposure to harmful pollutants.
Keywords: A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL)
Impact Factor: 2.741
Times cited: 3
DOI: 10.1007/S11356-018-2017-Z
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“Application of Gielis transformation to the design of metamaterial structures”. de Jong van Coevorden CM, Gielis J, Caratelli D, Journal of physics : conference series 963, Unsp 012008 (2018). http://doi.org/10.1088/1742-6596/963/1/012008
Abstract: In this communication, the use of Gielis transformation to design more compact metamaterial unit cells is explored. For this purpose, transformed complementary split ring resonators and spiral resonators are coupled to micro-strip lines and theirbehaviour is investigated. The obtained results confirm that the useof the considered class of supershaped geometries enables the synthesis of very compact scalable microwave components.
Keywords: A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL)
DOI: 10.1088/1742-6596/963/1/012008
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“Why does not the leaf weight-area allometry of bamboos follow the 3/2-power law?”.Lin S, Shao L, Hui C, Song Y, Reddy GVP, Gielis J, Li F, Ding Y, Wei Q, Shi P, Reddy GVP, Frontiers in plant science 9, 583 (2018). http://doi.org/10.3389/FPLS.2018.00583
Abstract: The principle of similarity (Thompson, 1917) states that the weight of an organism follows the 3/2-power law of its surface area and is proportional to its volume on the condition that the density is constant. However, the allometric relationship between leaf weight and leaf area has been reported to greatly deviate from the 3/2-power law, with the irregularity of leaf density largely ignored for explaining this deviation. Here, we choose 11 bamboo species to explore the allometric relationships among leaf area (A), density (ρ), length (L), thickness (T), and weight (W). Because the edge of a bamboo leaf follows a simplified two-parameter Gielis equation, we could show that A ∝ L2 and that A ∝ T2. This then allowed us to derive the density-thickness allometry ρ ∝ Tb and the weight-area allometry W ∝ A(b+3)/2 ≈ A9/8, where b approximates −3/4. Leaf density is strikingly negatively associated with leaf thickness, and it is this inverse relationship that results in the weight-area allometry to deviate from the 3/2-power law. In conclusion, although plants are prone to invest less dry mass and thus produce thinner leaves when the leaf area is sufficient for photosynthesis, such leaf thinning needs to be accompanied with elevated density to ensure structural stability. The findings provide the insights on the evolutionary clue about the biomass investment and output of photosynthetic organs of plants. Because of the importance of leaves, plants could have enhanced the ratio of dry material per unit area of leaf in order to increase the efficiency of photosynthesis, relative the other parts of plants. Although the conclusion is drawn only based on 11 bamboo species, it should also be applicable to the other plants, especially considering previous works on the exponent of the weight-area relationship being less than 3/2 in plants.
Keywords: A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL)
DOI: 10.3389/FPLS.2018.00583
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“The common descent of biological shape description and special functions”. Gielis J, Caratelli D, de Jong van Coevorden M, Ricci PE page 119 (2018).
Abstract: Gielis transformations, with their origin in botany, are used to define square waves and trigonometric functions of higher order. They are rewritten in terms of Chebyshev polynomials. The origin of both, a uniform descriptor and the origin of orthogonal polynomials, can be traced back to a letter of Guido Grandi to Leibniz in 1713 on the mathematical description of the shape of flowers. In this way geometrical description and analytical tools are seamlessly combined.
Keywords: H1 Book chapter; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL)
DOI: 10.1007/978-3-319-75647-9_10
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“The conversion mechanism of amorphous silicon to stoichiometric WS2”. Heyne MH, de Marneffe J-F, Nuytten T, Meersschaut J, Conard T, Caymax M, Radu I, Delabie A, Neyts EC, De Gendt S, Journal of materials chemistry C : materials for optical and electronic devices 6, 4122 (2018). http://doi.org/10.1039/C8TC00760H
Abstract: The deposition of ultra-thin tungsten films and their related 2D chalcogen compounds on large area dielectric substrates by gas phase reactions is challenging. The lack of nucleation sites complicates the adsorption of W-related precursors and subsequent sulfurization usually requires high temperatures. We propose here a technique in which a thin solid amorphous silicon film is used as reductant for the gas phase precursor WF6 leading to the conversion to metallic W. The selectivity of the W conversion towards the underlying dielectric surfaces is demonstrated. The role of the Si surface preparation, the conversion temperature, and Si thickness on the formation process is investigated. Further, the in situ conversion of the metallic tungsten into thin stoichiometric WS2 is achieved by a cyclic approach based on WF6 and H2S pulses at the moderate temperature of 450 1C, which is much lower than usual oxide sulfurization processes.
Keywords: A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Impact Factor: 5.256
Times cited: 4
DOI: 10.1039/C8TC00760H
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“Modeling Plasma-based CO2and CH4Conversion in Mixtures with N2, O2, and H2O: The Bigger Plasma Chemistry Picture”. Wang W, Snoeckx R, Zhang X, Cha MS, Bogaerts A, The journal of physical chemistry: C : nanomaterials and interfaces 122, 8704 (2018). http://doi.org/10.1021/acs.jpcc.7b10619
Abstract: Because of the unique properties of plasma technology, its use in gas conversion applications is gaining significant interest around the globe. Plasma-based CO2 and CH4 conversion has become a major research area. Many investigations have already been performed regarding the single-component gases, that is, CO2 splitting and CH4 reforming, as well as for two-component mixtures, that is, dry reforming of methane
(CO2/CH4), partial oxidation of methane (CH4/O2), artificial photosynthesis (CO2/H2O), CO2 hydrogenation (CO2/H2), and even first steps toward the influence of N2 impurities have been taken, that is, CO2/N2 and CH4/N2. In this Feature Article we briefly discuss the advances made in literature for these different steps from a plasma chemistry modeling point of view. Subsequently, we present a comprehensive plasma chemistry set, combining the knowledge gathered in this field so far and supported with extensive experimental data. This set can be used for chemical kinetics plasma modeling for all possible combinations of CO2, CH4, N2, O2, and H2O to investigate the bigger picture of the underlying plasmachemical pathways for these mixtures in a dielectric barrier discharge plasma. This is extremely valuable
for the optimization of existing plasma-based CO2 conversion and CH4 reforming processes as well as for investigating the influence of N2, O2, and H2O on these processes and even to support plasma-based multireforming processes.
Keywords: A1 Journal article; Engineering sciences. Technology; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Impact Factor: 4.536
Times cited: 28
DOI: 10.1021/acs.jpcc.7b10619
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“Minimizing recalcitrant organics and maximizing nitrogen removal linked to advanced biosolids processing at Blue Plains WWTP”. Zhang Q, Higgins MJ, Vlaeminck SE, DeBarbadillo C, Suzuki R, Kharkar SM, Al-Omari A, Wett B, Chandran K, Murthy S, De Clippeleir H, , 12 p.
T2 (2017)
Keywords: P3 Proceeding; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL)
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“Sulphidotrophic denitrification treating regeneration water from ion exchange at high performance and low opex”. Vlaeminck SE, Kobayashi K, Jandra J, Van Nevel S, Vandekerckhove TGL, , 3 p.
T2 (2017)
Keywords: P3 Proceeding; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL)
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“Conceptual framework for deammonification in a combined floc-granule system : impact of aeration control, external selector and bioaugmentation based on full-scale data from WWTP in Strass”. Van Winckel T, Al-Omari A, Takás I, Wett B, Bachmann B, Sturm B, Bott C, Vlaeminck SE, Murthy S, De Clippeleir H, , 16 p.
T2 (2017)
Keywords: P3 Proceeding; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL)
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“Water and process parameters as controllers for the ammonia to nitrite oxidation rate ratio in activated sludge”. Han M, Seuntjens D, Al-Omari A, Takacs I, Meerburg F, Murthy S, Vlaeminck SE, De Clippeleir H, , 3 p.
T2 (2017)
Keywords: P3 Proceeding; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL)
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“Experimental metrics to predict the flocculent settling coefficient in a 1D settler model”. Ngo N, Liu X, Van Winckel T, Massoudieh A, Kjellerup BV, Takács I, Wett B, Mancell-Egala M, Sturm B, Vlaeminck SE, Al-Omari A, Murthy S, De Clippeleir H, , 5 p.
T2 (2017)
Keywords: P3 Proceeding; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL)
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“Its time to harvest : combining internal selection and flocculent external selection to maximize carbon capture efficiency”. Van Winckel T, Yapuwa H, Wett B, Sturm B, Vlaeminck SE, Al-Omari A, Murthy S, De Clippeleir H, , 3 p.
T2 (2017)
Keywords: P3 Proceeding; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL)
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“Startup strategies of deammonification reactors treating reject water from thermally hydrolyzed solids”. Zhang Q, Vlaeminck SE, DeBarbadillo C, Suzuki R, Kharkar SM, Al-Omari A, Wett B, Chandran K, Murthy S, De Clippeleir H, , 5 p.
T2 (2017)
Keywords: P3 Proceeding; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL)
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“Water treatment unit breadboard : ground test facility for the recycling of urine and shower water for one astronaut”. de Paepe J, Lindeboom REF, Vanoppen M, Alonso Farinas B, Coessens W, Abbas A, Christiaens M, Dotremont C, Beckers H, Lamaze B, Demey D, Rabaey K, Clauwaert P, Verliefde ARD, Vlaeminck SE, , 2 p.
T2 (2017)
Keywords: P3 Proceeding; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL)
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“Towards upgrading of wastewater resources to microbial protein : volatile fatty acids impacting growth kinetics and yield of purple bacteria”. Alloul A, Vlaeminck SE, , 2 p.
T2 (2017)
Keywords: P3 Proceeding; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL)
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“Enabling partial nitritation/anammox on pre-treated sewage with IFAS : aeration and floc SRT control strategies limit nitrate production”. Seuntjens D, Carvajal Arroyo JM, Molina J, Boon N, Vlaeminck SE, , 3 p.
T2 (2017)
Keywords: P3 Proceeding; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL)
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“Cool conditions for mainstream anammox applications : short and long term temperature effects”. De Cocker P, Bessiere Y, Hernandez-Raquet G, Sun XY, Mozo I, Barrillon B, Gaval G, Caligaris M, Martin Ruel S, Vlaeminck SE, Sperandio M, , 3 p.
T2 (2017)
Keywords: P3 Proceeding; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL)
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“Pinpointing bioflocculation limitations for enhanced carbon management in high-rate activated sludge”. Liu X, Van Winckel T, Kjellerup BV, Takacs I, Sturm B, Vlaeminck SE, Al-Omari A, Murthy S, De Clippeleir H, , 6 p.
T2 (2017)
Keywords: P3 Proceeding; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL)
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“Mitigation of nitrous oxide emission from nitritation/denitritation process”. Peng L, Carvajal-Arroyo JM, Seuntjens D, Colica G, Pintucci C, Vlaeminck SE, , 3 p.
T2 (2017)
Keywords: P3 Proceeding; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL)
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“Short and long term effect of decreasing temperature on anammox activity and enrichment in mainstream granular sludge process”. De Cocker P, Bessiere Y, Hernandez-Raquet G, Dubos S, Mercade M, Sun XY, Mozo I, Barillon B, Gaval G, Caligaris M, Martin Ruel S, Vlaeminck SE, Sperandio M, 4, 50 (2017). http://doi.org/10.1007/978-3-319-58421-8_8
Abstract: This study investigates the impact of lower temperature on short term and long term (down to 10 degrees C) on a completely anoxic anammox granular sludge process. This is the first time granular sludge Anammox is operated in pure anoxic condition in SBR and at low temperature. Conversion performance, kinetic parameters, sludge characteristics and microbial community were analyzed.
Keywords: P1 Proceeding; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL)
DOI: 10.1007/978-3-319-58421-8_8
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“Impact of temperature on mainstream deammonification performance and microbial community”. Mozo I, Lacoste L, De Cocker P, Vlaeminck SE, Sperandio M, Bessiere Y, Hernandez-Raquet G, Caligaris M, Barillon B, Martin Ruel S, , 3 p.
T2 (2016)
Keywords: P3 Proceeding; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL)
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“Balancing flocs and granules by external selectors to increase capacity in high-rate activated sludge systems”. Van Winckel T, De Clippeleir H, Mancell-Egala A, Rahman A, Wett B, Bott C, Sturm B, Vlaeminck SE, Al-Omari A, Murthy S, , 6 p.
T2 (2016)
Keywords: P3 Proceeding; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL)
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“Inhibition mechanisms affecting deammonification of dewatering filtrate from thermally hydrolyzed digested solid”. Zhang Q, De Clippeleir H, DeBarbadillo C, Su C, Al-Omari A, Wett B, Chandran K, Vlaeminck SE, Murthy S, , 9 p.
T2 (2016)
Keywords: P3 Proceeding; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL)
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“Towards application of mainstream deammonification on municipal wastewater in warm and cold areas”. Mozo I, Lacoste L, aussenac J, De Cocker P, Vlaeminck SE, Sperandio M, Caligaris M, Graveleau L, Barillon B, Martin Ruel S, , 4 p.
T2 (2016)
Keywords: P3 Proceeding; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL)
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“The rise of thermophilic biotechnology for nitrogen removal”. Vandekerckhove TGL, Courtens ENP, Prat D, Boon N, Vlaeminck SE, , 17 p.
T2 (2016)
Keywords: P3 Proceeding; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL)
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“Transitioning from mesophilic to thermophilic nitrification: shaping a niche for archaeal ammonia oxidizers”. Vandekerckhove T, Courtens ENP, Prat D, Vilchez-Vargas R, Vital M, Pieper DH, Meerbergen K, Lievens B, Boon N, Vlaeminck SE, , 9 p.
T2 (2016)
Keywords: P3 Proceeding; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL)
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“Microbial ecology of high-rate versus conventional activated sludge : environmental and operational parameters shape microbial structure, co-occurrence and functionality”. Seuntjens D, Meerburg FA, Vlaeminck SE, Roume H, Pieper DH, Jauregui R, Vilchez-Vargas R, Boon N, , 4 p.
T2 (2016)
Keywords: P3 Proceeding; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL)
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