Searched for: subject:"Shields"
(1 - 20 of 81)

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Stijnman, Peter R.S. (author), Mandija, Stefano (author), Fuchs, P.S. (author), van den Berg, Cornelis A.T. (author), Remis, R.F. (author)
Purpose: To remove the necessity of the tranceive phase assumption for CSI-EPT and show electrical properties maps reconstructed from measured data obtained using a standard 3T birdcage body coil setup. Methods: The existing CSI-EPT algorithm is reformulated to use the transceive phase rather than relying on the transceive phase assumption....
journal article 2021
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Raja, Anand (author)
The society of Delft Aerospace Rocket Engineering (DARE) aims at launching the Stratos IV sounding rocket to an apogee of 100km; thus cementing their place as one of the few student teams that have had the unique opportunity to design and build a rocket that is capable of reaching the frontiers of space. In doing so, DARE has entered flight...
master thesis 2020
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Zhao, W. (author)
With the aid of the analytical formulas of the disc pair model inter-shielded by different type of shield wires, the total series capacitance of the disc pair could be calculated. After introducing a number of inter-shield pairs to the disc pair model, the influence on the mutual inductance between discs has been thoroughly discussed. Last but...
master thesis 2020
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van Gils, Martijn (author)
Pre-piling templates are often used in the offshore industry to ensure the vertical installation of foundation piles for jacket structures. Boskalis is currently preparing a project that uses these templates in the Taiwan Strait, which is a region known for its relatively soft soils and seismic activity. Consequently, the piles are very long in...
master thesis 2020
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Dek, Casper (author), Overkamp, Jean Luc (author), Toeter, Akke (author), Hoppenbrouwer, Tom (author), Slimmens, Jasper (author), van Zijl, Job (author), Areso Rossi, Pietro (author), Machado, Ricardo (author), Hereijgers, Sjef (author), Kilic, Veli (author), Naeije, M.C. (author)
In recent years, the space market has been pushing towards decreasing costs of launching spacecraft by reusing parts of the launchers. The purpose of this article is to present a feasibility study of a recovery system for the engine and engine frame of an existing, expendable heavy launch vehicle and present recommendations for further...
journal article 2020
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Gudde, Tom (author)
Radiation is increasingly used to treat otherwise dangerous operations such as valve replacements with minimal consequences for the patient using live X-ray and catheters. These minimal invasive interventions are beneficial for the patient but physicians are exposed to high doses of radiation as a result. Products in the market of radiation...
master thesis 2019
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Wassenberg, Nick (author)
Background: Patients who suffer from acetabular bone defects are often subjected to a decreased mobility and a loss of independence. To treat these bone defects, standard hemispherical acetabular implants offer in most cases the solution. However, when these defects are large, a custom triflange acetabular implant is needed. Although this type...
master thesis 2019
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Chen, Ying (author), Zhang, Xun (author), van der Zwaag, S. (author), Sloof, W.G. (author), Xiao, Ping (author)
A self‐healing thermal barrier coating (TBC) system is manufactured by air plasma spraying (APS) and tested by thermal cycling. The ceramic topcoat in the self‐healing APS TBC system consists of an yttria stabilised zirconia (YSZ) matrix and contains self‐shielding aluminium containing MoSi2 healing particles dispersed close to the topcoat/bond...
journal article 2019
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Sanders, Timo (author)
This thesis studies the radiation dose deposited on a 6U CubeSat in interplanetary orbit. The European Space Agency’s radiation data tool SPENVIS has been used to determine the proton flux in interplanetary space during a solar particle event which occurs only once every one hundred years. SPENVIS has further been applied to obtain a dose depth...
master thesis 2018
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Gökçe, H. Süleyman (author), Yalçinkaya, Ç. (author), Tuyan, Murat (author)
High performance concrete has been often preferred in special engineering structures and in challenging composites products. Researchers have recently focused on the radiation shielding characteristics of these type concrete mixtures due to rising nuclear industry in the developing world. In the study, performance of reactive powder concrete...
journal article 2018
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Siarov, Stefan (author)
In-space manufacturing proves more important now than ever. The capability of creating a sustainable manufacturing strategy for spare parts or tools would significantly improve both mass budget and costs. Therefore, additive manufacturing (3D printing) in space is seen as an enabler of future scenarios that explore beyond the current boundaries...
master thesis 2018
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Stumpf, M. (author), de Hoop, A.T. (author)
A full analytic time-domain analysis is presented for a canonical problem of electromagnetic interference related to the operation of integrated-circuit devices at optical frequencies, where metal screens and substrates can no longer be characterized as perfect electrical conductors, but the plasmonic behavior of conduction electrons in the...
journal article 2018
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Shekhar, A. (author), Feng, X. (author), Hebner, R. (author), Gattozzi, A. (author), Strank, S. (author), Mor, A. R. (author), Ramirez Elizondo, L.M. (author), Bauer, P. (author)
The thermal behavior of medium voltage dc cables can find useful applications for efficient and capacity enhanced operation in cities as well as compact power transmission on all electric ships. Concepts such as dynamic current and voltage rating, difference in thermal proximity in ac and dc operation, pulsed load application and thermal...
conference paper 2018
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Wendt, Emiel (author)
The static stability of stones on mild slopes under wave attack is investigated in this research. The first part of the research is focused on reproducing the physical scale model tests regarding profile change of Kramer (2016) numerically with the model XBeach-G. The erosion profiles modelled with the bed-load transport formulas of Nielsen ...
master thesis 2017
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Verheijen, Bob (author)
Spacecraft are under constant threat of structural damage from hypervelocity impacts by micrometeoroids and orbital debris. To bolster the shielding used for protection against these impacts, ballistic materials can be employed. Aramid-based materials are currently used aboard the International Space Station (ISS), but Ultra High Molecular...
master thesis 2017
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van Raamsdonk, Gert-Jan (author)
The load of the electric grid in increased by the connection of more renewable energy sources and less controlled power stations. The transmission operator has to decide where and when new overhead lines are required. However the operator can also chose to utilize existing lines more by increasing the transport capacity. This can be accomplished...
master thesis 2017
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van Beek, V.M. (author), Hoffmans, G.J.C.M. (author)
The prediction of backward erosion piping is important for safety assessment of dikes in the Netherlands, where subsurface conditions are prone to this erosion mechanism. In the current assessment methodology, the adapted Sellmeijer rule is in use. In combination with the national safety philosophy and uncertainty in input parameters, this model...
conference paper 2017
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Vieira Valente, R.D. (author), De Ruijter, Chris (author), Vlasveld, Daniel (author), van der Zwaag, S. (author), Groen, W.A. (author)
Conductive polymer composites have been receiving increased interest both from the scientific community and industry with a special focus on electromagnetic interference (EMI) shielding applications. In this paper, we present the design, EM wave simulation, and validation through S-parameters measurements of an EMI shielding effectiveness (SE...
journal article 2017
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Blaauw, Menno (author), Ridikas, D. (author), Baytelesov, S. (author), Salas, P. S Bedregal (author), Chakrova, Y. (author), Eun-Ha, Cho (author), Dahalan, R. (author), Fortunato, A. H. (author), Jacimovic, R. (author), Kling, A. (author), Muñoz, L. (author), Mohamed, N. M A (author), Párkányi, D. (author), Singh, T. (author), Van Dong Duong, Dong Duong (author)
Molybdenum-99 is one of the most important radionuclides for medical diagnostics. In 2015, the International Atomic Energy Agency organized a round-robin exercise where the participants measured and calculated specific saturation activities achievable for the <sup>98</sup>Mo(n,γ)<sup>99</sup>Mo reaction. This reaction is of interest as a...
journal article 2017
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Alves Vieira, A.E. (author), Snellen, M. (author), Simons, D.G. (author)
The shielding of engine noise by the aircraft wings and fuselage can lead to a significant reduction on perceived noise on ground. Most research on noise shielding is focused on BlendedWing Body (BWB) configurations because of the large dimension of the fuselage. However, noise shielding is also considered relevant in conventional tube and...
conference paper 2017
Searched for: subject:"Shields"
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