Searched for: faculty:"Applied%5C%2BSciences"
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Zhang, T. (author), Runge, Jurgen H. (author), Lavini, Cristina (author), Stoker, Jaap (author), Van Gulik, Thomas (author), Cieslak, Kasia P. (author), van Vliet, L.J. (author), Vos, F.M. (author)
The Couinaud classification of hepatic anatomy partitions the liver into eight functionally independent segments. Detection and segmentation of the hepatic vein (HV), portal vein (PV) and inferior vena cava (IVC) plays an important role in the subsequent delineation of the liver segments. To facilitate pharmacokinetic modeling of the liver...
conference paper 2018
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Peruzzini, D. (author), Viti, J. (author), Tortoli, P. (author), Verweij, M.D. (author), De Jong, N. (author), Vos, H.J. (author)
Currently, in medical ultrasound contrast agent (UCA) imaging the second harmonic scattering of the microbubbles is regularly used. This scattering is in competition with the signal that is caused by nonlinear wave propagation in tissue. It was reported that UCA imaging based on the third or higher harmonics, i.e. “superharmonic” imaging, shows...
conference paper 2015
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Verduin, T. (author), Lokhorst, S.R. (author), Kruit, P. (author), Hagen, C.W. (author)
conference paper 2015
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Liu, X.X. (author), Hayton, D.J. (author), Luo, Y.C. (author), Wei, L. (author), Vercruyssen, N. (author), Gao, J.R. (author), Groppi, C. (author)
We report on realization of a 2 × 2 NbN hot electron bolometer (HEB) array receiver using multiple local oscillator (LO) beams that are obtained from a Fourier phase grating mirror. The grating splits a 1.4 THz single beam into four uniform sub-beams. Two 50mm lenses are applied to collimate each beam in order to achieve a spacing of 12mm...
conference paper 2015
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Li, Z. (author), Van Vliet, L.J. (author), Stoker, J. (author), Vos, F.M. (author)
Image registration of medical images in the presence of large intra-image signal fluctuations is a challenging task. Our paper addresses this problem by introducing a new concept based on the structure tensor of the local phase. The local phase is calculated from the monogenic signal representation of the images. The local phase image is hardly...
conference paper 2015
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Shcherbatenko, M. (author), Lobanov, Y. (author), Benderov, O. (author), Shurakov, A. (author), Ignatov, A. (author), Titova, N. (author), Finkel, M. (author), Maslennikov, S. (author), Kaurova, N. (author), Voronov, B.M. (author), Rodin, A. (author), Klapwijk, T.M. (author), Gol'tsman, G.N. (author)
We report on design and characterization of a superconducting Hot Electron Bolometer Mixer integrated with a logarithmic spiral antenna for mid-IR range observations. The antenna parameters have been adjusted to achieve the ultimate performance at 10 ?m (30 THz) range where O3, NH3, CO2, CH4, N2O, …. lines in the Earth’s atmosphere, in planetary...
conference paper 2015
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Chakrova, N. (author), Rieger, B. (author), Stallinga, S. (author)
We present a versatile fluorescence microscope, built by complementing a conventional fluorescence microscope with a digital micro-mirror device (DMD) in the illumination path. Arbitrary patterns can be created on the DMD and projected onto the sample. This patterned illumination can be used to improve lateral and axial resolution over the...
conference paper 2015
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Scotuzzi, M. (author), Kamerbeek, M.J. (author), Goodyear, A. (author), Cooke, M. (author), Hagen, C.W. (author)
To demonstrate the possibility of using EBID masks for sub-10 nm pattern transfer into silicon, first experiments were carried out by using 20-40 nm EBID masks, that were etched by different chemistries. It is experimentally verified that recipes based on hydrogen bromide, chlorine and boron trichloride can selectively etch silicon when using 20...
conference paper 2015
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Petrik, P. (author), Fodor, B. (author), Agocs, E. (author), Kozma, P. (author), Nador, J. (author), Kumar, N. (author), Endres, J. (author), Juhasz, G. (author), Major, C. (author), Pereira, S.F. (author), Lohner, T. (author), Urbach, H.P. (author), Bodermann, B. (author), Fried, M. (author)
conference paper 2015
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Mout, B.M. (author), Wick, M. (author), Bociort, F. (author), Urbach, H.P. (author)
The Wigner Distribution Function (WDF) forms an alternative representation of the optical field. It can be a valuable tool for understanding and classifying optical systems. Furthermore, it possesses properties that make it suitable for optical simulations: both the intensity and the angular spectrum can be easily obtained from the WDF and the...
conference paper 2015
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Stallinga, S. (author)
Localization microscopy for imaging at the nano-scale relies on the quality of fitting the emitter positions from the measured light spots. The type and magnitude of the noise in the detection process, the background light level and the Point Spread Function model that is used in the fit are of paramount importance for the precision and accuracy...
conference paper 2015
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Hou, Z. (author), Bociort, F. (author)
A major challenge in lens design is the presence of many local minima in the optimization landscape. However, unlike other global optimization problems, the lens design landscape has an additional structure, that can facilitate the design process: many local minima are closely related to minima of simpler problems. For discussing this property,...
conference paper 2015
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Kidess, A. (author), Kenjeres, S. (author), Kleijn, C.R. (author)
With transient LES and DNS simulations, we investigate flow in melt pools driven by thermocapillary forces. The developing pool is at first axisymmetric as are the boundary conditions, but flow instabilities arise that lead to 3D oscillatory flow patterns. At higher laser powers a sign-change in the surface tension temperature coefficient occurs...
conference paper 2015
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Kenjeres, S. (author), Zinsmeester, R. (author), Pyrda, L. (author), Fornalik-Wajs, E. (author), Szmyd, J. (author)
We present combined experimental and numerical studies of the heat transfer of paramagnetic or diamagnetic fluid inside a differentially heated cubical enclosure subjected to the magnetic field gradients of different strength and orientation. In contrast to the previously reported studies in literature, which observed solely laminar flow regimes...
conference paper 2015
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Cisotto, L. (author), Zhu, Y. (author), Pereira, S.F. (author), Urbach, H.P. (author)
Finding a fast and precise method to measure the side-wall angle of periodic (or non-periodic) structures is still a very challenging problem in lithographic applications. For this reason, over the years, many techniques have been proposed to circumvent this limitation, with the final goal to give the most precise geometrical description of...
conference paper 2015
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Van Ormondt, D. (author), De Beer, R. (author), Van der Veen, J.W.C. (author), Sima, D.M. (author), Graveron-Demilly, D. (author)
MRI-scanners enable non-invasive, in vivo quantitation of metabolites in, e.g., the brain of a patient. Among other things, this requires adequate estimation of the unknown temporal decay function of the complex-valued signal emanating from the metabolites. We propose a method to render a current decay estimator more simple, accurate, and robust...
conference paper 2015
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De Beer, R. (author), Van Ormondt, D. (author)
We have developed a Java/Fortran based application, called MonteCarlo, that enables the users can carry out Monte Carlo studies in the field of in vivo MRS. The application is supposed to be used as a tool for the jMRUI platform, being the in vivo MRS software system of the TRANSACT European Union project. The MonteCarlo application can be...
conference paper 2015
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Luo, Y.C. (author), Liu, X.X. (author), Hayton, D.J. (author), Wei, L. (author), Gao, J.R. (author), Groppi, C. (author)
A Fourier phase grating mirror will be applied to split a single, coherent terahertz source beam into multi-beams, which are spatially distributed as required for the local oscillator in an array receiver. We report on the simulation, design and fabrication of a Fourier phase grating at 1.25 THz for generating 2×2 beams, and the measurements at...
conference paper 2015
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Shakeri, S.M. (author), Hulsken, B. (author), Van Vliet, L.J. (author), Stallinga, S. (author)
Whole Slide Imaging (WSI) systems are used in the emerging field of digital pathology for capturing high-resolution images of tissue slides at high throughput. We present a technique to measure the optical aberrations of WSI systems using a Shack-Hartmann wavefront sensor as a function of field position. The resulting full-field aberration maps...
conference paper 2015
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Kusmin, A. (author), Van Eijck, L. (author), Pappas, C. (author), Zolnierczuk, P.A. (author), Arend, N. (author), Ohl, M. (author), Van Well, A.A. (author)
We present the results of the first TOFLAR (Time Of Flight and LARmor precession) experiment with a Larmor modulation device positioned after the sample. Using a setup based on the configuration of the SNS-NSE spectrometer (Spallation Neutron Source, USA), we did TOFLAR measurements on water at 5 and 20 degree Celsius, analyzed the spectra, and...
conference paper 2015
Searched for: faculty:"Applied%5C%2BSciences"
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