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Amiri-Simkooei, A.R. (author), Tiberius, C.C.J.M. (author), Teunissen, P.J.G. (author)We propose a methodology to assess the noise characteristics in time series of position estimates for permanent Global Positioning System (GPS) stations. Least squares variance component estimation (LS?VCE) is adopted to cope with any type of noise in the data. LS?VCE inherently provides the precision of (co)variance estimators. One can also...journal article 2007
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Den Heijer, F. (author), Noort, J. (author), Peters, H. (author), De Grave, P. (author), Oost, A. (author), Verlaan, M. (author)De stormvloed van 1 november 2006, de Allerheiligenvloed genaamd, heeft na analyse van de waterstandsverwachting, de golfmetingen bij Schiermonnikoog Noord (SON), de veekranden en de duinafslag, geleid tot aanbevelingen voor het informatie- en kennisontwikkelingsproces. Het betreft aanbevelingen voor het instrumentarium van de SVSD, voor het...report 2007
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Dankelman, J. (author)With the introduction of minimally invasive surgery (MIS), it became necessary to develop training methods to learn skills outside the operating room. Several training simulators have become commercially available, but fundamental research into the requirements for effective and efficient training in MIS is still lacking. Three aspects of...journal article 2007
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Loef, R. (author), Schoonman, J. (author), Goossens, A. (author)Type transformation in CuInSe2 and CuInS2 solar cells is an important issue with far reaching consequences. In the present study, the presence of a p-n homojunction inside CuInS2 in a TiO2/CuInS2 device is revealed with a detailed impedance spectroscopy and capacitance study. A n-type CuInS2 film with a thickness of 40?nm is found at the TiO2 (n...journal article 2007
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McDonnell, J.J. (author), Sivapalan, M. (author), Vaché, K. (author), Dunn, S. (author), Grant, G. (author), Haggerty, R. (author), Hinz, C. (author), Hooper, R. (author), Kirchner, J. (author), Roderick, M.L. (author), Selker, J. (author), Weiler, M. (author)Field studies in watershed hydrology continue to characterize and catalogue the enormous heterogeneity and complexity of rainfall runoff processes in more and more watersheds, in different hydroclimatic regimes, and at different scales. Nevertheless, the ability to generalize these findings to ungauged regions remains out of reach. In spite of...journal article 2007
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Chu, W. (author)Trajectory optimization is an essential part of space plane mission design. One important aspect of trajectory optimization for re-entry vehicles is to minimize the total heat load at the surface when it returns and the heat flux should remain below certain limit, meanwhile, the vehicle should land at the desired point. The methods used for re...master thesis 2007
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- Gu, D. (author) master thesis 2007
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Mortensen, P.H. (author), Andersson, H.I. (author), Gillissen, J.J.J. (author), Boersma, B.J. (author)The translational and rotational motions of small spherical particles dilutely suspended in a turbulent channel flow have been investigated. Three different particle classes were studied in an Eulerian-Lagrangian framework to examine the effect of the response times on the particle statistics. The results for the fluctuating particle velocities...journal article 2007
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Chi, C.C. (author)In this thesis a design report is given for implementing Voip functionality on a FPGA. More specifically, the Voip functionality is coded in software (C) and executed on a Nios II softcore. This NiosII is a Verilog description which is programmed onto the vga with the specific drivers for the audio codec and network controller.bachelor thesis 2007
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Elstak, J. (author)Since the start of CubeSat development different universities and organisations have succeeded in launching and operating their own satellites. Each of these institutes has their own ways in which these projects are organised.Furthermore each project has its own design philosophy and heritage that influence the project. What all these projects...master thesis 2007
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Marbus, G.D. (author)Allseas Engineering bv ("Allseas") is a major offshore contractor, supplying the oil and gas industry with their expertise in the field of marine pipeline installation. Their biggest ship, the Solitaire, has a horizontal working plane and to prevent the pipe from bending or breaking due to its weight the pipe is guided by an outrigger called the...master thesis 2007
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Simonov, A.N. (author), Grabarnik, S. (author), Vdovine, G.V (author)We have investigated the possibility of using transparent stretchable diffraction gratings for spectrometric applications. The gratings were fabricated by replication of a triangular-groove master into a transparent viscoelastic. The sample length, and hence the spatial period, can be reversibly changed by mechanical stretching. When used in a...journal article 2007
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Knoop, V.L. (author), Snelder, M. (author), Van Zuylen, H.J. (author)Much of the delay in transport networks is caused by incidents. Many indicators are developed to determine vulnerable parts of a network without simulating the network flows with an incident on each of the links. This paper lists indicators proposed in literature and cross compares them. Their values for all links on three networks of different...conference paper 2007
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Bociort, F. (author), Van Turnhout, M. (author), Marinescu, O.E. (author)Optimization of a projection system is performed to obtain a starting configuration that is at a local minimum of the merit function or simply a previously known minimum system is used as the starting configuration. A zero-thickness meniscus lens is inserted at a surface in the local minimum starting configuration with N surfaces to construct a...patent 2007
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Bos, M.S. (author), Fernandes, R.M.S. (author), Williams, S.D.P. (author), Bastos, L. (author)It has been generally accepted that the noise in continuous GPS observations can be well described by a power-law plus white noise model. Using maximum likelihood estimation (MLE) the numerical values of the noise model can be estimated. Current methods require calculating the data covariance matrix and inverting it, which is a significant...journal article 2007
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- Horstman, J. (author) master thesis 2007
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Knook, R. (author)Bij het traditionele beeld van het bouwproces wordt de aannemer meestal pas bij het proces betrokken nadat het ontwerp vastgesteld is en deze in bestekvorm gegund wordt in een openbare aanbesteding. De laatste decennia zijn daar verschillende soorten samenwerkingsvormen bijgekomen waarbij deze overdracht c.q. betrokkenheid van de aannemer al in...master thesis 2007
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De Kruijf, J. (author)Water management issues are often complex, unstructured problems. They are complex, because they are part of a natural and human system wich consists of many diverse, interdependent elements, e.g. upstream events influence the water system downstream, different interdependent goverment layers, manage the water system, and multiple stakeholders...report 2007
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Kuipers, R.H. (author)By modernizing the city, Beijing is upgrading to a higher level of prosperity. At the same time though we see the reverse side of a global development, the interventions in the city ruin parts of the city by destroying its traditional architecture, in particular the traditional hutong-areas, which are one of the main characteristics of this city...master thesis 2007
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Reniers, A.J.H.M. (author), MacMahan, J.H. (author), Thornton, E.B. (author), Stanton, T.P. (author)Numerical computations are used to explain the presence of very low frequency motions (VLFs), with frequencies less than 0.004 Hz, in the rip current velocity signals observed during the Rip-current field Experiment (RIPEX) field experiment. Observations show that the VLF motions are most intense within the surfzone and then quickly taper off in...journal article 2007