Searched for: mods_originInfo_publisher_s%3A%22Institute%255C+of%255C+Physics%22
(1 - 20 of 70)
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Tan, M.L. (author), Latif, A.B. (author), Pohl, C. (author), Duan, Z. (author)Remote sensing contributes valuable information to streamflow estimates. This paper discusses its relevance to the digital earth concept. The authors categorize the role of remote sensing in streamflow modelling and estimation. This paper emphasizes the applications and challenges of satellite-based products in streamflow modelling. Importance...conference paper 2014
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Attema, J.J. (author), Loriaux, J.M. (author), Lenderink, G. (author)Observations of extreme (sub) hourly precipitation at midlatitudes show a large dependency on the dew point temperature often close to 14% per degree—2 times the dependency of the specific humidity on dew point temperature which is given by the Clausius–Clapeyron (CC) relation. By simulating a selection of 11 cases over the Netherlands...journal article 2014
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Khodyuk, I.V. (author), Dorenbos, P. (author)The nonproportional scintillation response of LaBr3 doped with 5% Ce3+ and of LaCl3 doped with 10% Ce3+ was measured using highly monochromatic synchrotron irradiation. To estimate the photon response, pulse height spectra at many finely spaced energy values between 9 and 100 keV were measured. The experiment was carried out at the X-1 beamline...journal article 2010
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Thuwis, G.A.A. (author), Abdalla, M.M. (author), Gürdal, Z. (author)One of the possibilities for the next generation of smart high-lift devices is to use a seamless morphing structure. A passive composite variable-stiffness skin as a solution to the dilemma of designing the structure to have high enough stiffness to withstand aerodynamic loading and low stiffness to enable morphing is proposed. The variable...journal article 2010
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Ghaemi, S. (author), Scarano, F. (author)The light source budget is a critical issue for tomographic particle image velocimetry (Tomo-PIV) systems due to its requirement for large illuminated volume and imaging at small apertures. In this work, a light amplification system based on the multi-pass concept is investigated for Tomo-PIV applications. The system design is performed on the...journal article 2010
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Hannot, S.D.A. (author), Verhoosel, C.V. (author), Rixen, D.J. (author)Electro–mechanical sensors and actuators are a specific type of microsystems. The electrostatic pull-in value is one of the defining characteristics for these devices. Because the material and geometrical properties of micro fabricated systems are often very uncertain, this pull-in value can be subject to considerable variations. Therefore it is...journal article 2010
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Dwight, R.P. (author)It has recently been observed that Least-Squares Finite Element methods (LS-FEMs) can be used to assimilate experimental data into approximations of PDEs in a natural way, as shown by Heyes et al. in the case of incompressible Navier Stokes ow [1]. The approach was shown to be effective without regularization terms, and can handle substantial...journal article 2010
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Heemskerk, J.W.T. (author), Korevaar, M.A.N. (author), Huizenga, J. (author), Kreuger, R. (author), Schaart, D.R. (author), Goorden, M.C. (author), Beekman, F.J. (author)To improve multi-pinhole single photon emission computed tomography (SPECT) devices we are developing a high-resolution gamma detector consisting of a 3-mm-thick scintillation crystal that converts gamma photons to light, on top of an optically coupled high-resolution, high-sensitivity light sensor (EMCCD). This gamma camera can detect...journal article 2010
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Chen, P. (author), Van Veldhoven, E. (author), Sanford, C.A. (author), Salemink, H.W.M. (author), Maas, D.J. (author), Smith, D.A. (author), Rack, P.D. (author), Alkemade, P.F.A. (author)A 25 keV focused helium ion beam has been used to grow PtC nanopillars on a silicon substrate by beam-induced decomposition of a (CH3)3Pt(CPCH3) precursor gas. The ion beam diameter was about 1 nm. The observed relatively high growth rates suggest that electronic excitation is the dominant mechanism in helium ion-beam-induced deposition. Pillars...journal article 2010
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Li, P. (author), Zdebski, D. (author), Langen, H.H. (author), Hoogstrate, A.M. (author), Oosterling, J.A.J. (author), Munnig Schmidt, R.H. (author), Allen, D.M. (author)Micro features with high aspect ratios are one of the commonly encountered geometries found in micro products. In the literature, these structures are often used in demonstrator products machined by a micromilling process. In this paper, the challenges in micromilling thin ribs ith high aspect ratios have been studied. Due to the scaling effect,...journal article 2010
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Sadeghian, H. (author), Yang, C.K. (author), Gavan, K.B. (author), Goosen, J.F.L. (author), Van der Drift, E.W.J.M. (author), Van der Zant, H.S.J. (author), Bossche, A. (author), French, P.J. (author), Van Keulen, F. (author)Micro/nano resonant cantilevers with a laser deflection readout have been very popular in sensing applications over the past years. Despite the popularity, however, most of the research has been devoted to increasing the sensitivity, and very little attention has been focused on effects-induced errors. Among these effects, the surface effects...journal article 2010
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Francis, D. (author), Tatam, R.P. (author), Groves, R.M. (author)Shearography is a full-field speckle interferometric technique used to determine surface displacement derivatives. For an interferometric technique, shearography is particularly resilient to environmental disturbances and has hence become an invaluable measurement tool outside of the optics laboratory. Furthermore, the inclusion of additional...journal article 2010
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Margallo-Balbás, E. (author), Taroni, P. (author), Pifferi, A. (author), Koolstra, J.H. (author), Van Ruijven, L.J. (author), French, P.J. (author)In recent years, optical techniques based on diffusion approximation have demonstrated their ability to gain rich spectral information about bone. However, these methods normally assume homogeneity, while cancellous bone and marrow form a highly heterogeneous two-phase medium. This paper studies the limitations of this assumption, and quantifies...journal article 2010
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Ghaemi, S. (author), Schmidt-Ott, A. (author), Scarano, F. (author)The potential application of aggregates of nanoparticles for high-speed flow diagnostics is investigated. Aluminum nanoparticles around 10 nm in diameter are produced by spark discharge in argon gas. Through rapid coagulation and oxidation, aggregates of small effective density are formed. They are characterized by microscopy and their...journal article 2010
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Margallo-Balbás, E. (author), Taroni, D. (author), Pifferi, A. (author), Koolstra, J.H. (author), Van Ruyven, L.J. (author), French, P.J. (author)In recent years, optical techniques based on diffusion approximation have demonstrated their ability to gain rich spectral information about bone. However, these methods normally assume homogeneity, while cancellous bone and marrow form a highly heterogeneous two-phase medium. This paper studies the limitations of this assumption, and quantifies...journal article 2010
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Mele, L. (author), Santagata, F. (author), Panraud, G. (author), Morana, B. (author), Tichelaar, F.D. (author), Creemer, J.F. (author), Sarro, P.M. (author)This paper presents a new process for the fabrication of MEMS-based nanoreactors for in situ atomic-scale imaging of nanoparticles under relevant industrial conditions. The fabrication of the device is completed fully at wafer level in an ISO 5 clean room and it is based on silicon fusion bonding and thin film encapsulation for sealed lateral...journal article 2010
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Sadeghian, H. (author), Yang, C.K. (author), Goosen, J.F.L. (author), Bossche, A. (author), Staufer, U. (author), French, P.J. (author), Van Keulen, F. (author)The size-dependent elastic behavior of silicon nanocantilevers and nanowires, specifically the effective Young’s modulus, has been determined by experimental measurements and theoretical investigations. The size dependence becomes more significant as the devices scale down from micro- to nano-dimensions, which has mainly been attributed to...journal article 2010
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Wei, J. (author), Chen, Z.L. (author), Liu, Z.W. (author), Sarro, P.M. (author)This paper presents a silicon MEMS capacitive structure to investigate a test methodology for fF-level capacitive sensors’ measurement. The device mimics a capacitive sensor with a changing intermediate layer between the electrodes. A single mask bulk micromachining process is used to fabricate the device, which has a nominal capacitance of 1.2...journal article 2010
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Semin, N.V. (author), Poelma, C. (author), Drost, S. (author), Westerweel, J. (author)The potential of in-line digital holography to locate and measure the size and position of filaments, i.e. thin wire-like objects, distributed throughout a thick volume has been investigated. In this paper two approaches are introduced to study filaments of varying diameter. (1) It is shown analytically and experimentally that for a gradual...journal article 2010
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Zhang, Y. (author), Van der Giessen, E. (author), Nicola, L. (author)Simulations of rough surface flattening are performed on thin metal films whose roughness is created by nanoimprinting flat single crystals. The imprinting is carried out by means of a rigid template with equal flat contacts at varying spacing. The imprinted surfaces are subsequently flattened by a rigid platen, while the change of roughness and...journal article 2010
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