Searched for: subject%3A%22Dielectric%255C+properties%22
(1 - 12 of 12)
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Hadjigeorgiou, Georgios (author)
This thesis research focuses on MRI technology and more specifically the evaluation of the generalized signal model (full-wave signal). The research aims to investigate how dielectric properties influence the magnetic fields in MRI scans, by using a more complex signal model that takes into account scattered fields caused by dielectric...
master thesis 2023
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den Besten, N.I. (author), Steele-Dunne, S.C. (author), Aouizerats, Benjamin (author), Zajdband, Ariel (author), de Jeu, Richard (author), van der Zaag, P. (author)
In this study the impact of sucrose accumulation in Sentinel-1 backscatter observations is presented and compared to Planet optical observations. Sugarcane yield data from a sugarcane plantation in Xinavane, Mozambique are used for this study. The database contains sugarcane yield of 387 fields over two seasons (2018-2019 and 2019-2020). The...
journal article 2021
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Abdul Madhar, S. (author), Brunner, Marc (author), Mor, A. R. (author), Mraz, Petr (author)
The discharge over dielectric interfaces popularly known as surface discharge is a very common defect type that is associated with its respective discharge pattern under AC voltages. However, the same designs behave differently under DC voltages leading up to erratic PD behavior. To understand the process of surface discharge an equivalent...
conference paper 2021
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Gangurde, L.S. (author), Sturm, G.S.J. (author), Valero Romero, M.J. (author), Mallada, Reyes (author), Santamaria, Jesus (author), Stankiewicz, A.I. (author), Stefanidis, G. (author)
A series of ruthenium-doped strontium titanate (SrTiO<sub>3</sub>) perovskite catalysts were synthesized by conventional and microwave-assisted hydrothermal methods. The structure was analyzed by X-Ray diffraction (XRD) confirming the formation of the perovskite phase with some TiO<sub>2</sub> anatase phase in all the catalysts. Microwave...
journal article 2018
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van Emmerik, T.H.M. (author)
Vegetation is a crucial part of the water and carbon cycle. Through photosynthesis carbon is assimilated for biomass production, and oxygen is released into the atmosphere. During this process, water is transpired through the stomata, and is redistributed in the plant. Transpired water is refilled by uptake of water from the root zone in the...
doctoral thesis 2017
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Shaji Karapuzha, A. (author), Kunnamkuzhakkal James, N. (author), Khanbareh, H. (author), van der Zwaag, S. (author), Groen, W.A. (author)
The effects of Zr/Ti ratio on the dielectric and piezoelectric properties of the sintered Pb(Zr<sub>x</sub>Ti<sub>(1−x)</sub>)<sub>0.99</sub>Nb<sub>0.01</sub>O<sub>3</sub> piezoelectric ceramics across the entire range of phase diagram of the PZT solid solution was studied systematically. The materials were prepared by the conventional mixed...
journal article 2016
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Van Emmerik, T.H.M. (author), Steele-Dunne, S.C. (author), Judge, J. (author), Van de Giesen, N.C. (author)
Leaf dielectric properties influence microwave scattering from a vegetation canopy. The dielectric properties of leaves are primarily a function of leaf water content. Understanding the effect of water stress on leaf dielectric properties will give insight in how plant dynamics change as a result of water stress, and how radar can be used for...
conference paper 2015
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Kunnamkuzhakkal James, N. (author), Van den Ende, D. (author), Lafont, U. (author), Van der Zwaag, S. (author), Groen, W.A. (author)
Structured lead zirconium titanate (PZT)–epoxy composites are prepared by dielectrophoresis. The piezoelectric and dielectric properties of the composites as a function of PZT volume fraction are investigated and compared with the corresponding unstructured composites. The effect of poling voltage on piezoelectric properties of the composites is...
journal article 2013
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Kotsonis, M. (author), Ghaemi, S. (author)
The forcing behavior of a dielectric barrier discharge (DBD) actuator is investigated experimentally using a time-resolved particle image velocimetry (PIV) system in conjunction with a phase shifting technique. The spatio-temporal evolution of the induced flowfield is accurately captured within one high voltage (HV) cycle allowing the...
journal article 2011
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Yuliastuti, E. (author)
The world’s energy requirement has been dominated by petroleum oil for centuries in many application fields, including transportation, household, and electricity. Mineral oil as an important insulating material in transformers has been used more than 150 years. Mineral oil application in power system equipment can be potentially hazardous to the...
master thesis 2010
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Alijagic-Jonuz, B. (author)
doctoral thesis 2007
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Van Beek, A. (author), Milhorst, M.A. (author)
The dielectric properties of concrete can be used to characterize the development of the microstructure of the cement paste. During hydration the microstructure changes and so does the amount of water in the pore structure. The different dielectric properties of the pore water and the solid phases can be measured with microwave frequencies. In...
journal article 2000
Searched for: subject%3A%22Dielectric%255C+properties%22
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