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Waterval, Niels F.J. (author), Brehm, Merel Anne (author), Altmann, Viola C. (author), Koopman, Fieke S. (author), Den Boer, Jasper J. (author), Harlaar, J. (author), Nollet, Frans (author)In persons with calf muscle weakness, walking energy cost is commonly increased due to persistent knee flexion and a diminished push-off. Provided ankle-foot orthoses (AFOs) usually lower walking energy cost. To maximize the reduction in energy cost, AFO bending stiffness should be individually optimized, but this is not common practice....journal article 2020
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Oosterloo, R.C. (author), Den Boer, C.S. (author)Vanuit de voetbalwereld is er altijd behoefte aan meer informatie over de fitheid van de spelers. Een belangrijke manier om fitheid te bepalen is hartslag meten. Het ontbreekt momenteel aan software om de hartslag te analyseren. Dit project is erop gericht een applicatie te maken voor het analyseren van harslag data. Er is gekozen voor een web...bachelor thesis 2014
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Den Boer, C.A. (author)We investigate non-isothermal compositional flow in methane-rich geothermal aquifers by coupling a thermodynamic model and a dynamic flow model. For the thermodynamic model, we develop a MATLAB program, which calculates the thermodynamic equilibrium of the H2OCH4-NaCl mixtures at high pressure conditions and reservoir temperatures. In the same...master thesis 2012
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Den Boer, V.J.E. (author)The Langmann reservoir is part of the hydropower system in the river Teigitsch and in the reservoir loss of storage volume occurs. The reservoir was therefore flushed, but recently no permission is granted. The reason is the high sediment concentrations that have negative effects on the downstream region. An optimization of the flushing...master thesis 2011
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Den Boer, V.J.E. (author), Joosten, D.A.W. (author), Melman, F.C.R. (author), Post, S. (author)The starting point for this project are the severe erosion problems at the Pacuare Nature Reserve, situated on the Caribbean coast of Costa Rica. The Reserve’s installations are situated next to a lagoon which is separated from the open sea by a barrier beach. The lagoon is connected on the landward side to local river? and channel system....student report 2009
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Den Boer, C.A. (author)In the “Delft Aardwarmte Project” cooled geothermal water is planned to be injected back into the producing formation. This paper describes the mechanisms occurring during injection and he prediction of the thermal breakthrough that are studied using a reservoir simulation model developed for the “Delft Aardwarmte Project” field properties....bachelor thesis 2009
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- Den Boer, A. (author) journal article 2008
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Den Boer, F. (author)The aim of this thesis is to develop a framework that can be used within the construction industry to apply portfolio management by economic means, in accordance with the modern portfolio theory developed by Markowitz (1952) and Shape (1964) and current portfolio management tools of commercial banks and the Dutch Ministry of Infrastructure and...master thesis 2007
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- Den Boer, K.T. (author) doctoral thesis 2001
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Den Boer, K.T. (author), De Jong, T. (author), Dankelman, J. (author), Gouma, D.J. (author)Introduction: Laparoscopic surgery is particularly known for its complex technique, which calls for operative analysis of laparoscopic instruments. This study investigates the opinion of experts about clinical problems with instruments occurring during laparoscopic surgery. Methods: A questionnaire was used to obtain the opinions of expert...journal article 2001
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Jaspers, J.E.N. (author), Den Boer, K.T. (author), Sjoerdsma, W. (author), Bruijn, M. (author), Grimbergen, C.A. (author)Background and Purpose: During minimally invasive procedures, an assistant controls the camera and often a laparoscopic grasper. Ideally, the surgeon should be able to manipulate the instruments because the indirect way of control complicates the surgeon's observation and actions and disturbs eye-hand coordination. Reported replacements for the...journal article 2000
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Sjoerdsma, W. (author), Meijer, D.W. (author), Jansen, A. (author), Den Boer, K.T. (author), Grimbergen, C.A. (author)Purpose: To determine the most efficient technique for performing a colectomy, we used the methodology of time-motion analysis. Methods: The efficiency of five hand-assisted and six regular laparoscopic colectomies and one open colectomy, performed by four surgeons in three different hospitals, was measured. The open colectomy was analyzed as a...journal article 2000
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Den Boer, K. (author)In het verslag M 1795 deel I is een overzicht gegeven van het onderzoek naar stabiliteit van steenzettingen onder golfaanval. Het kleinschalige modelonderzoek, dat in dit verslag wordt beschreven, is daar een onderdeel van. Het onderzoek is deels in opdracht van de Deltadienst en deels in opdracht van het Centrum voor Onderzoek Waterkeringen...report 1985
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Den Boer, K. (author), Bezuijen, A. (author)In Nederland zijn veel laaggelegen gebieden beschermd tegen overstroming d.m.v. dijken. De opdracht van de Deltacommissie betreffende de veiligheid luidt dijken te bouwen die nog volledige zekerheid bieden bij een waterstand en golfaanval, die ver uitgaan buiten het ervaringsgebied. Voor het ontwerpen van dijken die bestand zijn tegen deze...report 1984
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- Den Boer, C. (author), Bouwman, L.P. (author) report 1984
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- Den Boer, W. (author) doctoral thesis 1983
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- Den Boer, J.A. (author) doctoral thesis 1983
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Den Boer, K. (author)Tijdens het schutproces van een sluis worden op de schepen in de kolk krachten uitgeoefend, welke in hoge mate bepaald worden door de waterbeweging in de sluiskolk. De krachten in langsrichting bestaan uit een aantal componenten tengevolge van translatiegolven en bovendien bij vullen via openingen in de deuren uit een aantal componenten,...master thesis 1979
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Den Boer, F.C. (author)Document(en) uit de collectie Chemische Procestechnologiereport 1959