Searched for: subject:"Shields"
(1 - 20 of 46)

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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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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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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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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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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
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Festa, D. (author), Broere, W. (author), Bosch, J.W. (author)
When a Tunnel Boring Machine (TBM) is driven in soft soil, the TBM-shield constantly interacts with the surrounding soil profile excavated by the cutting wheel. The interaction pattern of shield-soil interface displacements determines compression and extension sectors in the surrounding soil. Soil compression is generated when the shield...
conference paper 2013
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Miedema, S.A. (author)
conference paper 2013
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Miedema, S.A. (author)
conference paper 2010
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Heidary, A. (author), Meijer, G.C.M. (author)
This paper presents the analysis and design of an integrated interface for grounded capacitive sensors. To reduce the effects of parasitic cable capacitances, a feedforward technique has been applied. In combination with the use of a special front-end amplifier this yields high immunity for a parasitic cable capacitance. The major nonidealities...
journal article 2009
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Steenstra, H.T. (author), Van Deursen, A.P.J. (author)
Switched-mode power supplies in variable-frequency drives often combine good electrical efficiency with generous production of conducted emission. The common-mode (CM) current through the output-to-motor cablemay perturb nearby systems via cable-to-cable crosstalk. Parameters relevant for the coupling are the rise–fall times and amplitude of the...
journal article 2008
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Ma, Y. (author), Rejaei, B. (author), Zhuang, Y. (author)
We present a novel shielding method for on-chip transmission lines built on conductive silicon substrates. The shield consists of an artificial dielectric with a very high in-plane dielectric constant, built from two patterned metal layers isolated by a very thin dielectric film. Inserted below an integrated coplanar transmission line, the...
journal article 2008
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Vorobyov, A.V. (author)
The goal of this thesis was to develop design concepts of the UWB antenna with improved characteristics for impulse radio applications. To reach this goal a number of theoretical and experimental investigations were carried out. The major result of the thesis is a number of novel concepts for UWB antennas including: - The shielded elliptically...
doctoral thesis 2008
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Hoan, N.T. (author), Booij, R. (author), Hofland, B. (author), Stive, M.J.F. (author), Verhagen, H.J. (author)
The current research is aimed at evaluating the applicability of a numerical flow model to predict bed damage. First, an experimental study was carried out to get more inside into the relation between flow forces acting on a bed and the bed response (damage). The experiments were then used as the basis for the evaluation. Second, the flow was...
conference paper 2008
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Reverter, F. (author), Li, X. (author), Meijer, G.C.M. (author)
journal article 2008
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Hoan, N.T. (author), Booij, R. (author), Hofland, B. (author), Stive, M.J.F. (author), Verhagen, H.J. (author)
The current research is aimed at finding a proper relation between flow forces acting on the bed and the bed response. To this end, experiments were carried out in which both the bed response (quantified by a dimensionless entrainment rate) and the flow field (velocity and turbulence intensity distributions) are measured. The three available...
conference paper 2007
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Frijlink, M.O. (author)
Traditionally redatuming algorithms disregard amplitude information carried by seismic reflections, they focus just on traveltime information. Properly processing amplitude information requires much more computing resources. We develop an algorithm for redatuming that aims to preserve amplitude information. We aim to observe energy conservation...
doctoral thesis 2007
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Hoan, N.T. (author), Booij, R. (author), Hofland, B. (author), Stive, M.J.F. (author), Verhagen, H.J. (author)
The current research is aimed at finding a dimensionless stability parameter for non-uniform flow in which the effect of turbulence is incorporated. To this end, experiments were carried out in which both the bed response (quantified by a dimensionless entrainment rate) and the flow field (velocity and turbulence intensity distributions) are...
conference paper 2007
Searched for: subject:"Shields"
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