Searched for: subject:"spectra"
(1 - 20 of 108)

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Maria, M. (author), Anisimov, A. (author), Stols-Witlox, Maartje (author), Groves, R.M. (author)
In this study we investigate the possibility of spectra stitching in the context of Spectral Domain - Optical Coherence Tomography (SD-OCT). The aim is to reach a high axial resolution while keeping sampling issues to a low level (slow decay in depth) but still operating with the fastest camera line rate available. The paper focuses mainly on...
conference paper 2020
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Skandali, D. (author), Lourens, E. (author), Ogink, R.H.M. (author)
A vessel's response to waves is dependent on a large number of parameters, some of which are both frequency and direction dependent. To predict vessel response, these parameters are used to construct response amplitude operators (RAOs) that act as transfer functions between the directional wave spectra and the motion spectra of the vessel. In...
journal article 2020
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Seynaeve, Simon (author)
Offshore wind farms are being deployed in ever more challenging conditions. Relatively unexplored are wind farms deployed in hurricane-prone regions. That is exactly the challenge that Mexican government faces as they want to expand their renewable energy resources by developing offshore wind in the Gulf of Mexico. The increased variability in...
master thesis 2019
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Galanakis, Nikos (author)
This research describes the demand of a Displacement-based approach for the assessment of out-of plane behaviour of one-way vertically-spanning unreinforced masonry (URM) walls of terraced and detached houses in the Groningen Province. One of the most vulnerable components of a typical Dutch unreinforced masonry building subjected to earthquake...
master thesis 2019
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Rajabzadehdizaji, A. (author), Heusdens, R. (author), Hendriks, R.C. (author), Groves, R.M. (author)
In the past few decades, fibre Bragg grating (FBG) sensors have gained a lot of attention in the field of distributed point strain measurement. One of the most interesting properties of these sensors is the presumed linear relationship between the strain and the peak wavelength shift of the FBG reflected spectra. However, subjecting sensors to a...
journal article 2018
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Kwant, Martijn (author)
The North Sea is known for its marine activities, which need ocean data for safe operations. The ocean surface is described using the two-dimensional wave spectrum. This ocean wave spectrum can be estimated using wave buoys, wave models or remote sensing techniques. Wave buoys and numerical models are known to contain inaccuracies, which...
master thesis 2017
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van den Bercken, Vincent (author)
Using Fiber Bragg Grating (FBG) sensors in rolling element bearings is a novel way of monitoring bearings. During prototype testing, differences between sensor readouts were observed, leading to the research question: “What causes the observed differences in the strain distribution from sensor to sensor in a rolling element bearing equipped with...
master thesis 2017
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Bergmans, P.M.P. (author)
Comparative study into the effects of applying different spectral wave models to workability prediction of the Ampelmann A-type. Single peaked (wind sea), double peaked (wind sea and swell), and hindcast wave spectra are compared.
master thesis 2017
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Rajabzadeh, Aydin (author), Groves, R.M. (author), Hendriks, R.C. (author), Heusdens, R. (author)
In this paper the behaviour of fibre Bragg grating (FBG) sensors under non-uniform strain distributions was analysed. Using the fundamental matrix approach, the length of the FBG sensor was discretised, with each segment undergoing different strain values. FBG sensors that are embedded inside composites, also undergo such non-uniform strain...
conference paper 2017
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Wang, X. (author)
Failures of networks, such as power outages in power systems, congestions in<br/>transportation networks, paralyse our daily life and introduce a tremendous cascading effect on our society. Networks should be constructed and operated in a robust way against random failures or deliberate attacks.<br/>We study how to add a single link into an...
doctoral thesis 2016
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Harenberg, P.F.J. (author)
Jumbo maritime has almost 50 years of experience in the heavy shipping industry. In the past two decades Jumbo has developed into an offshore installation company by equipping the Fairplayer with a DP2 system. The Fairplayer has two 900 [ton] Huisman cranes. However, due to insufficient static stability a stabilization pontoon is required to...
master thesis 2016
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Oosterlo, P. (author)
In this thesis, a method was developed, with which the infragravity waves and morphological changes of a sandy foreshore are included in the calculation of the probability of dike failure due to wave overtopping. Constructing a natural foreshore in front of the dike can be an attractive and innovative method to decrease the failure probability....
master thesis 2015
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Dogan, I. (author), Kramer, N.J. (author), Westermann, R.H.J. (author), Dohnalova, K. (author), Smets, A.H.M. (author), Verheijen, M.A. (author), Greogorkiewicz, T. (author), Van de Sanden, M.C.M. (author)
We demonstrate a method for synthesizing free standing silicon nanocrystals in an argon/silane gas mixture by using a remote expanding thermal plasma. Transmission electron microscopy and Raman spectroscopy measurements reveal that the distribution has a bimodal shape consisting of two distinct groups of small and large silicon nanocrystals with...
journal article 2013
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Liu, D. (author)
The infrastructure networks, including the Internet, telecommunication networks, electrical power grids, transportation networks (road, railway, waterway, and airway networks), gas networks and water networks, are becoming more and more complex. The complex infrastructure networks are crucial to our human society, and it has been a hot research ...
doctoral thesis 2013
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Seshan, V. (author), Arroyo, C.R. (author), Castellanos-Gomez, A. (author), Prins, F. (author), Perrin, M.L. (author), Janssens, S.D. (author), Haenen, K. (author), Nesládek, M. (author), Sudhölter, E.J.R. (author), De Smet, L.C.P.M. (author), Van der Zant, H.S.J. (author), Dulic, D. (author)
A high-current annealing technique is used to fabricate nanogaps and hybrid diamond/graphite structures in boron-doped nanocrystalline diamond films. Nanometer-sized gaps down to ?1?nm are produced using a feedback-controlled current annealing procedure. The nanogaps are characterized using scanning electron microscopy and electronic transport...
journal article 2012
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Rosenberg, S.G. (author), Landheer, K. (author), Hagen, C.W. (author), Fairbrother, D.H. (author)
Using three different precursors [MeCpPtMe3, Pt(PF3)4, and W(CO)6], an ultra-high vacuum surface science approach has been used to identify and rationalize the effects of substrate temperature and electron fluence on the chemical composition and bonding in films created by electron beam induced deposition (EBID). X-ray photoelectron spectroscopy...
journal article 2012
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Calado, V.E. (author), Schneider, G.F. (author), Theulings, A.M.M.G. (author), Dekker, C. (author), Vandersypen, L.M.K. (author)
We study the formation of wrinkles in graphene upon wet transfer onto a hydrophilic target substrate, whereby draining of water appears to play an important role. We are able to control the orientation of the wrinkles by tuning the surface morphology. Wrinkles are absent in flakes transferred to strongly hydrophobic substrates, a further...
journal article 2012
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Ren, Y. (author), Hayton, D.J. (author), Hovenier, J.N. (author), Cui, M. (author), Gao, J.R. (author), Klapwijk, T.M. (author), Shi, S.C. (author), Kao, T.Y. (author), Hu, Q. (author), Reno, J.L. (author)
We demonstrate an experimental scheme to simultaneously stabilize the frequency and amplitude of a 3.5 THz third-order distributed feedback quantum cascade laser as a local oscillator. The frequency stabilization has been realized using a methanol absorption line, a power detector, and a proportional-integral-derivative (PID) loop. The amplitude...
journal article 2012
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Ramanandan, G.K.P. (author), Ramakrishnan, G. (author), Planken, P.C.M. (author)
Terahertz (THz) transmission spectroscopy is used to measure the oxidation kinetics of copper thin films evaporated on silicon substrates. The transmission of broadband THz pulses from 1 to 7 THz through the copper film is measured while it gets oxidized at an elevated temperature in ambient air. The change in the transmitted THz electric field...
journal article 2012
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Van Genderen, P. (author), Tatarinov, V.N. (author), Tatarinov, S.V. (author)
The paper presents the first attempt to develop parameters that are invariant to polarization, aimed at classification and recognition of complex radar objects. Both the simplest (two-point) model and multipoint models of a complex object are analyzed using the so-called emergence principle and a generalization of the interference laws. The...
journal article 2012
Searched for: subject:"spectra"
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