Searched for: author%3A%22Visser%2C+T.%22
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Visser, T. (author)
The decay of satellite orbits has been used extensively to obtain thermospheric density measurements. With the introduction of accelerometers in spacecraft, the spatial resolution of these data could be increased. At the same time, the direction of the measured acceleration provides a measure for the direction of the incoming flow, and therefore...
doctoral thesis 2019
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Visser, T. (author), March, G. (author), Doornbos, E.N. (author), de Visser, C.C. (author), Visser, P (author)
Thermospheric wind measurements obtained from linear non-gravitational accelerations of the Gravity field and steady-state Ocean Circulation Explorer (GOCE) satellite show discrepancies when compared to ground-based measurements. In this paper the cross-wind is derived from both the linear and the angular accelerations using a newly developed...
journal article 2019
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van den Aarssen, M.S.T. (author), Visser, T. (author), de Visser, C.C. (author)
High performance control allocation methods for the Innovative Control Effectors (ICE) aircraft require accurate onboard aerodynamic models, with preferably first order continuity. Simplotope B-Splines, an extension on Simplex B-Splines, have a high approximation power by using local cost functions. However, enforcing global continuity produces...
conference paper 2019
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Visser, T. (author), March, G. (author), Doornbos, E.N. (author), de Visser, C.C. (author), Visser, P.N.A.M. (author)
Recently, the horizontal and vertical cross wind at 225- to 295-km altitude were derived from linear acceleration measurements of the Gravity field and steady-state Ocean Circulation Explorer satellite. The vertical component of these wind data is compared to wind data derived from the mass spectrometers of the Atmosphere Explorer C and E and...
journal article 2019
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Visser, T. (author), March, G. (author)
other 2018
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March, G. (author), Visser, T. (author), Doornbos, E.N. (author), Iorfida, E. (author), van den IJssel, J.A.A. (author), Visser, P.N.A.M. (author)
poster 2018
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Visser, T. (author), Doornbos, E.N. (author), de Visser, C.C. (author), Visser, P.N.A.M. (author), Fritsche, Bent (author)
journal article 2018
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Visser, T. (author), Doornbos, E.N. (author), de Visser, C.C. (author), Visser, P.N.A.M. (author)
Because of the highly accurate accelerometers, the GOCE mission has proven to be a unique source of thermosphere neutral density and cross-wind data. In the current methods, in which only the horizontal linear accelerations are used, the vertical winds cannot be obtained. In the algorithm proposed in this paper, angular accelerations derived...
poster 2017
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Visser, T. (author), Doornbos, E.N. (author), de Visser, C.C. (author), Visser, P.N.A.M. (author)
Because of the highly accurate accelerometers, the GOCE mission has proven to be a unique source of thermosphere neutral density and cross-wind data. In the current methods, in which only the horizontal linear accelerations are used, the vertical winds cannot be obtained. In the algorithm proposed in this paper, angular accelerations derived...
abstract 2017
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Visser, T. (author), de Visser, C.C. (author), van Kampen, E. (author)
In recent research efforts the multivariate simplex spline has shown great promise in system identification applications. It has high approximation power, while its linearity in the parameters allows for computationally efficient estimation of the coefficients. In this paper the multivariate simplotope spline is derived from this spline, and...
conference paper 2016
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Visser, T. (author), Doornbos, E.N. (author), de Visser, C.C. (author), Visser, P.N.A.M. (author), Fritsche, B (author)
In recent studies thermospheric densities and cross-winds have been derived from linear acceleration measurements of the gradiometer on board the GOCE satellite. Our current work is aimed at analyzing also the angular accelerations, in order to improve the thermosphere density and wind data by allowing for the estimation of more unknown...
poster 2016
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Visser, T. (author), De Visser, C.C. (author), Van Kampen, E.J. (author)
A novel method for aircraft system identification is presented that is based on a new multivariate spline type; the multivariate multiplex B-spline. The multivariate multiplex B-spline is a generalization of the recently introduced tensor-simplex B-spline. Multivariate multiplex splines obtain similar or better approximation accuracy using less...
conference paper 2015
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Visser, T. (author)
Being in touch, and being aware of the people in one’s social network strongly contributes to one’s sense of social well-being. As communication technology has become more ubiquitous, it is possible to always be in touch with friends and relatives in the periphery of one’s attention, e.g. through instant messaging and online social networks....
doctoral thesis 2012
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Boderie, P.M.A. (author), Visser, T. (author)
report 2007
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Visser, T. (author)
Geeft een beschrijving van de sluitingsmiddelen, alsmede een verantwoording van de keuzen die hebben geleid tot het definitieve ontwerp. Bevat achtereenvolgens: Functies en eisen ; Hydraulkisch onderzoek ; Schuiven ; Schuifgeleidingen ; Bewegingswerken ; Elektrische installatie ; Inspectievoertuig schuiven.
report 2003
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Visser, T. (author)
Het ontwerp van onderdelen van het project Stormvloedkering wordt in 10 afzonderlijke deelnota's behandeld, wat aangeduid wordt met de term waterbouwkundige werken. Hieronder worden die onderdelen verstaan die in hoofdzaak uit grond en steenachtige materialen zijn opgebouwd. Bevat achtereenvolgens : deelnota 1 : algemene beschouwingen ; deelnota...
report 1991
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Visser, T. (author)
Het boek bevat een zo compleet mogelijke beschrijving van de gang van zaken die geleid heeft tot het tot stand komen van de betonnen onderdelen van de stormvloedkering. De betonnen onderdelen zijn: Deelnota 1: Algemene aspecten; Deelnota 2: Pijlers; Deelnota 3: Landhoofden; Deelnota 4: Dorpelbalken; Deelnota 5: Bovenbalken; Deelnota 6:...
report 1989
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Visser, T. (author)
In deze nota over het ontwerp van de Stormvloedkering Oosterschelde wordt ingegaan op de randvoorwaarden voor de stormvloedkering, de ontwikkeling van het ontwerp en de organisatie van het project. De basisfilosofie en concept van het ontwerp, de functionele analyse, de veiligheidsanalyse, de ontwerpkeuze, prefabricage en...
report 1986
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Visser, T. (author)
Het boek geeft een beschrijving van de bijzondere hulpmiddelen die gebruikt zijn bij de realisatie van de Stormvloedkering Oosterschelde. Deze systemen en werktuigen wijken af van de in de Nederlandse waterbouwkunde normaal gebruikelijke hulpmiddelen. Bevat achtereenvolgens : Inleiding en algemene probleemstelling; Hydro-meetsystemen;...
report 1985
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Bult, W. (author), Seevinck, P.R. (author), Krijger, G.C. (author), Visser, T. (author), Kroon-Batenburg, L.M.J. (author), Bakker, C.J.G. (author), Hennink, W.E. (author), Van het Schip, A.D. (author), Nijsen, J.F.W. (author)
Purpose The aim of this study was to develop microspheres with an ultra high holmium content which can be neutron activated for radioablation of malignancies. These microspheres are proposed to be delivered selectively through either intratumoral injections into solid tumors or administered via an intravascularly placed catheter. Methods...
journal article
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