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Jansen, J.D. (author)This text forms part of material taught during a course in advanced reservoir simulation at Delft University of Technology over the past 10 years. The contents have also been presented at various short courses for industrial and academic researchers interested in background knowledge needed to perform research in the area of closed-loop...book 2013
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Jansen, J.D. (author)This note describes the theory behind a simple Matlab program to generate ensembles of geological realizations of relatively small-scale reservoir models (permeability fields) for subsurface flow simulation. The algorithm makes use of Principal Component Analysis (PCA) to parameterize the spatial covariance of a reference image, and a Bayesian...report 2013
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- Langeveld, L.H. (author), Van Egmond, R. (author), Jansen, R.J. (author), Özcan Vieira, E. (author) book chapter 2013
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Jansen, J.D. (author)Controlling the flow of fluids (e.g. water, oil, natural gas or CO2) in subsurface porous media is a technical process with many mathematical challenges. The underlying physics can be described with coupled nearly-elliptic and nearly-hyperbolic nonlinear partial differential equations, which require the aid of large-scale numerical simulation....lecture notes 2013
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Fonseca, R.M. (author), Leeuwenburgh, O. (author), Jansen, J.D. (author)In a recent study two hierarchical multi-objective methods were suggested to include short-term targets in life-cycle production optimization. However this previous study has two limitations: 1) the adjoint formulation is used to obtain gradient information, requiring simulator source code access and an extensive implementation effort, and 2)...conference paper 2012
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Namdar Zanganeh, M. (author), Kraaijevanger, J.F.B.M. (author), Buurman, H.W. (author), Jansen, J.D. (author), Rossen, W.R. (author)We apply adjoint-based optimization to a Surfactant-Alternating-Gas foam process using a linear foam model introducing gradual changes in gas mobility and a nonlinear foam model giving abrupt changes in gas mobility as function of oil and water saturations and surfactant concentration. For the linear foam model, the objective function is a...conference paper 2012
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Jansen, R.J. (author), Van Egmond, R. (author), De Ridder, H. (author)The use of sound was explored as means for expressing perceptual attributes of visual textures. Two sets of 17 visual textures were prepared: one set taken from the CUReT database1, and one set synthesized to replicate the former set. Participants were instructed to match a sound texture with a visual texture displayed onscreen. A modified...book chapter 2012
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Jansen, A.J. (author), Van Deursen, B. (author), Howe, C. (author)The paper presents the effect of changes in sailing apparel on aerodynamic drag, starting from the assumption that drag reduction of sailing apparel will increase the speed of an Olympic class sailing boat (in this case the Laser, a single-handed Olympic dinghy), mainly on upwind courses. Due to the fact that literature on this specific subject...journal article 2012
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Jansen, S.J.T. (author)Residential satisfaction is an important topic in the domain of housing. It refers to the individuals’ appraisal of the conditions of their residential environment, in relation to their needs, expectations and achievements. In the current study respondents were asked to indicate their residential satisfaction on a scale ranging from 1 (very...report 2012
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Langeveld, L.H. (author), Jansen, R.J. (author), van Egmond, R. (author)Product Sound Design is an elective course of the Master of Industrial Design Engineering at the Delft University of Technology. The educational goal of the course is to make students consciously aware of constructive parts in the design of appliances. The paper details the experience and the design of product sounds. The course runs during the...conference paper 2012
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- Jansen, K.M.B. (author) lecture notes 2012
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Jansen, A.J. (author), Van Abbema, A. (author), Howe, C. (author)The paper presents the changes in perceived comfort while hiking in a sailing boat (in this case the Laser, a single-handed Olympic dinghy) due to a new design of hiking pads. The project used a ‘research by design method’. The aim was to improve sailing comfort which leads to lower fatigue and therefor improved performance. While hiking, a...journal article 2012
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Tirumalasetty, G.K. (author), Fang, C.M. (author), Xu, Q. (author), Jansen, J. (author), Sietsma, J. (author), Van Huis, M.A. (author), Zandbergen, H.W. (author)A transmission electron microscopy study was conducted on nanoprecipitates formed in Ti microalloyed transformation-inducedplasticity-assisted steels, revealing the presence of Ti(N), Ti2CS and a novel type of ultra-fine Fe(C) precipitate. The matrix/precipitate orientation relationships, sizes and shapes were investigated in detail. The...journal article 2012
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Mulder, J. (author), Taal, M. (author), Tangelder, M. (author), Jansen, H. (author), Henkes, R. (author), Werners, S. (author)In deze studie wordt de ontwikkelingen in de sedimenthuishouding als uitgangspunt beschouwd voor duurzame inrichting van de ZW Delta. Centraal staan de kansen van een sedimentstrategie: het gericht beïnvloeden van de sedimenthuishouding, met het oog op het bereiken van een of meer (beleids)doelen. Kijkend naar de ontwikkelingen in de...report 2012
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Annema, J.A. (author), Van der Beek, N. (author), Bulthuis, O. (author), Jansen, J. (author)Dit artikel beschrijft een ex-postanalyse van zes wegenprojecten in de provincies Gelderland en Overijssel. De analyse laat zien dat voor de zes geselecteerde wegenprojecten de politieke doelen voor een belangrijk deel zijn behaald tegen de vooraf beschikbaar gestelde geldbudgetten. De methode van ex-postanalyse bestond uit het analyseren van...journal article 2012
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Mlecnik, E. (author), Jansen, S.J.T. (author), Schuetze, T. (author), De Vries, G. (author)Deze studie onderzocht de bewonerservaringen van 21 sociale huurders in seriematig gebouwde passiefwoningen in Nederland. Gegevens werden verzameld over de bewoners, hun motivatie om te kiezen voor hun woning, hun algemene tevredenheid met de woning en hun tevredenheid met het comfort, de klimaatregeling, het ventilatie-onderhoud en de...conference paper 2012
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Jansen, S.J.T. (author)The demographic, socio-economic and socio-cultural shifts that have taken place in Western economies in recent decades have generated a broader variety in housing behavior. For this reason, some researchers argue that socio-demographic characteristics alone no longer suffice to predict the housing demand. They should be supplemented with ...journal article 2012
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Rodrigues, S.P. (author), Ter Kuile, M. (author), Dankelman, J. (author), Jansen, F.W. (author)This study was conducted to adapt and validate a patient safety (PS) framework for minimally invasive surgery (MIS) as a first step in understanding the clinical relevance of various PS risk factors in MIS. Eight patient safety risk factor domains were identified using frameworks from a systems approach to patient safety. A questionnaire was...journal article 2012
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Okken, L.M. (author), Chmarra, M.K. (author), Hiemstra, E. (author), Jansen, F.W. (author), Dankelman, J. (author)Various steerable instruments with flexible distal tip have been developed for laparoscopic surgery. The problem of steering such instruments, however, remains a challenge, because no study investigated which control method is the most suitable. This study was designed to examine whether thumb (joystick) or wrist control method is designated for...journal article 2012
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Jansen, S.J.T. (author)This study focuses on residents’ perceptions of residential quality concerning 23 different dwelling aspects. Respondents were asked to indicate their appreciation of these dwelling aspects on a scale ranging from 0 (‘‘extremely unattractive’’) to 100 (‘‘extremely attractive’’). The influence of two potential factors on the appreciation of...journal article 2012