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Kamp, Harry (author)
Pursuing sustainable and efficient energy storage technologies has led to advancements in iron-air batteries. Understanding the intricate relationship between the microstructural features of iron electrodes and their oxidation and reduction behaviour is crucial for optimizing battery performance and lifespan. This thesis aims to investigate the...
master thesis 2023
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Soodan, Akhilesh (author)
Groundwater is an essential source of drinking water, and it often contains contaminants in the form of dissolved metal ions that pose health risks and affect its suitability for consumption. Removal of these contaminants by conventional treatment methods, such as oxidation and filtration, results in additional treatment steps for managing...
master thesis 2023
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Holst, Tjark (author)
Groundwater (GW) makes up roughly half of the global drinking water supply. Conventional iron removal in GW treatment produces approximately 10,000t/d of iron sludge. Iron sludge consists of low-density flocs with low to no commercial value and causes frequent energy intensive backwashing of the rapid sand filter. This study aimed to explore the...
master thesis 2023
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Randana Prayuda, Randana (author)
As the market leader in the garment care industry, Philips Domestic Appliances aims to drive the global conversions of the iron industry from dry iron to steam iron. However, Indonesia is the only nation that does not...
master thesis 2023
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Du, Yunlu (author), Huang, Yunkai (author), Guo, Baocheng (author), Peng, Fei (author), Yao, Y. (author), Dong, J. (author)
This article proposes a hybrid analytical model (HAM) for predicting ac copper losses in hairpin windings. The HAM combines the nonlinear semi-analytical model (SAM) and the 1-D ac copper loss computation model to solve the inaccurate boundary solutions of the 1-D ac copper loss computation model when magnetic saturation occurs in the stator...
journal article 2023
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Du, Yunlu (author), Huang, Yunkai (author), Guo, Baocheng (author), Peng, Fei (author), Yao, Yu (author), Dong, J. (author)
In this article, a new analytical model for predicting the magnetic field of the U-shaped interior permanent magnet motor (IPMM) is proposed. In the polar coordinates, rectangular permanent magnets are equivalent to the combination of consistent fan-shaped subdomains, and after that, the Laplace or Poisson equation of each solution domain can...
journal article 2023
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Rout, Samprajani (author), Monna, G.L.E. (author), Pareschi, Fabio (author), Setti, Gianluca (author), Serdijn, W.A. (author)
The key challenges in designing a multi-channel biosignal acquisition system for an ambulatory or invasive medical application with a high channel count are reducing the power consumption, area consumption and the outgoing wire count. This article proposes a spread-spectrum modulated biosignal acquisition system using a shared amplifier and...
journal article 2023
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Zhang, Hao (author), Bolshakov, Aleksei (author), Meena, Raghavendra (author), Garcia, Gustavo A. (author), Dugulan, A.I. (author), Parastaev, Alexander (author), Li, Guanna (author), Hensen, Emiel J.M. (author), Kosinov, Nikolay (author)
Non-oxidative coupling of methane is a promising route to obtain ethylene directly from natural gas. We synthesized siliceous [Fe]zeolites with MFI and CHA topologies and found that they display high selectivity (>90 % for MFI and >99 % for CHA) to ethylene and ethane among gas-phase products. Deactivated [Fe]zeolites can be regenerated...
journal article 2023
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Satish nair, Lakshmi (author)
Studies on the impact of Hydrogen on the electrochemical and mechanical behaviour of Iron-based materials have been increasingly conducted in the past few years. This is mainly due to the ever-growing demand for sustainable energy sources, which involve Hydrogen and to meet the high structural and economic demands from the automobile sector and...
master thesis 2022
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Ge, Baoyun (author), Liu, Wenbo (author), Dong, J. (author), Liua, Mingda (author)
High-performance electric drive applications necessitate a high fidelity model to predict the terminal characteristics of machines in the design stage to fulfill a system-level evaluation together with the converters. This article interprets winding function theory (WFT) from the field perspective and incorporates secondary effects, such as...
journal article 2022
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Ou, X. (author), Sietsma, J. (author), Santofimia, Maria Jesus (author)
Nucleation is the re-arrangement of a small number of atoms in the structure of a material leading to a new phase. According to the classical nucleation theory, a nucleus will grow if there is an energetically favourable balance between the stability of the newly formed structure and the energy costs associated to the formation of strains and...
journal article 2022
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Annaduzzaman, M. (author), Rietveld, L.C. (author), Hoque, Bilqis Amin (author), van Halem, D. (author)
Sequential iron (as Fe<sup>2+</sup>) oxidation has been found to yield improved arsenic (as As(III)) uptake than the single-step oxidation. The objective of this study was to gain a better understanding of interactions with phosphate (PO<sub>4</sub><sup>3−</sup>) and silicate (SiO<sub>4</sub><sup>2−</sup>) during sequential Fe<sup>2+</sup>...
journal article 2022
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Tafjord, Joakim (author), Regli, Samuel K. (author), Dugulan, A.I. (author), Rønning, Magnus (author), Rytter, Erling (author), Holmen, Anders (author), Myrstad, Rune (author), Yang, J. (author)
Transition metals supported on carbons play an important role in catalysis and energy storage. By pyrolysis of metal alginate, highly active catalysts for the Fischer-Tropsch synthesis (FTS) can be produced. However, the evolution of the carbon (alginate) and transition metal (Fe<sup>3+</sup>) during pyrolysis remains largely unknown and was...
journal article 2022
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Roy, M. (author), van Genuchten, Case M. (author), Rietveld, L.C. (author), van Halem, D. (author)
Groundwater contaminated with arsenic (As) must be treated prior to drinking, as human exposure to As at toxic levels can cause various diseases including cancer. Conventional aeration-filtration applied to anaerobic arsenite (As(III)) contaminated groundwater can remove As(III) by co-oxidizing native iron (Fe(II)) and As(III) with oxygen (O...
journal article 2022
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Putra, N.E. (author), Borg, K. G.N. (author), Diaz Payno, P.J. (author), Leeflang, M.A. (author), Klimopoulou, M. (author), Taheri, P. (author), Mol, J.M.C. (author), Fratila-Apachitei, E.L. (author), Zhou, J. (author), Zadpoor, A.A. (author)
Advanced additive manufacturing techniques have been recently used to tackle the two fundamental challenges of biodegradable Fe-based bone-substituting materials, namely low rate of biodegradation and insufficient bioactivity. While additively manufactured porous iron has been somewhat successful in addressing the first challenge, the limited...
journal article 2022
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Goedhart, R.C. (author), Müller, S. (author), van Loosdrecht, Mark C.M. (author), van Halem, D. (author)
Iron in anaerobic groundwater is commonly removed by oxidation followed by sand filtration. This produces large volumes of iron(III)(hydr)oxide sludge with little value. Our research investigates the novel concept of anaerobic iron(II) recovery from groundwater as the valuable mineral vivianite (Fe<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub> • 8...
journal article 2022
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Agung Kusumawardhana, Agung (author)
A reverse osmosis (RO) membrane followed by a packed tower aerator and rapid sand filter are used by an agricultural company in Emmen to treat brackish groundwater to supply water for growing crops and cleaning purposes. The iron removal by the treatment plant is sufficient most of the time throughout the year. However, the farmer periodically ...
master thesis 2021
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Suresh, Anjana (author)
The global production of steel in a year is in the range of several millions of tonnes due to its essential function in industries such as automotive, manufacturing, and construction among others. However, a major challenge faced by the steel industry in the development of new steel grades is the inability to predict surface behaviour, such as...
master thesis 2021
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Xie, Dan (author)
As one of the most prestigious architects of the Art Nouveau period, Victor Horta explored a set of innovative methods to combine iron materials and architectural forms. This article will focus on this particular material language, first analyze the background of iron materials and architectural development at that time; secondly, analyze the...
student report 2021
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Putra, N.E. (author), Leeflang, M.A. (author), Minneboo, M.B. (author), Taheri, P. (author), Fratila-Apachitei, E.L. (author), Mol, J.M.C. (author), Zhou, J. (author), Zadpoor, A.A. (author)
Extrusion-based 3D printing followed by debinding and sintering is a powerful approach that allows for the fabrication of porous scaffolds from materials (or material combinations) that are otherwise very challenging to process using other additive manufacturing techniques. Iron is one of the materials that have been recently shown to be...
journal article 2021
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