Searched for: subject%3A%22passive%22
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Van der Krogt, M.M. (author), Bregman, D.J.J. (author), Wisse, M. (author), Doorenbosch, C.A.M. (author), Harlaar, J. (author), Collins, S.H. (author)
Children with cerebral palsy frequently experience foot dragging and tripping during walking due to a lack of adequate knee flexion in swing (stiff-knee gait). Stiff-knee gait is often accompanied by an overly flexed knee during stance (crouch gait). Studies on stiff-knee gait have mostly focused on excessive knee muscle activity during (pre...
journal article
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Jacobs, L.C. (author)
doctoral thesis 1995
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Vrieling, A.J. (author)
This thesis deals with mixing of passive scalars in a turbulent flow. The passive scalars are released in a turbulent plane channel flow and interpreted as either non-reactive components or reactive components that are involved in a competitive-consecutive reaction system. The evolution of these passive scalars under influence of turbulent...
doctoral thesis 2003
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Wisse, M. (author)
One of the main challenges in the design of human-like walking robots (useful for service or entertainment applications as well as the study of human locomotion) is to obtain dynamic locomotion, as opposed to the static form of locomotion demonstrated by most of the current prototypes. A promising concept is the idea of passive dynamic walking;...
doctoral thesis 2004
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Spirito, M. (author)
doctoral thesis 2005
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De Visser, M. (author), Schwering, P.B.W. (author), De Groot, J.F. (author), Hendriks, E.A. (author)
journal article 2006
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Herder, J.L. (author), Vrijlandt, N. (author), Antonides, T. (author), Cloosterman, M. (author), Mastenbroek, P.L. (author)
This article describes the development of a mobile arm support for people with muscular diseases. The arm support is spring-balanced, with special attention on reduction of operating effort (high balancing quality and low friction), functionality (large range of motion), and aesthetics (inconspicuous design). The spring settings can be adjusted...
journal article 2006
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De Hoogh, J. (author), Kuerten, J.G.M. (author)
To investigate the behavior of the concentration of a passive scalar in a turbulent flow with realistic high Schmidt numbers, one needs a very fine grid to capture all length-scales that are present in the concentration. An efficient method to increase the spatial resolution without a drastic raise of the computational costs is to apply a Local...
conference paper 2006
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Abbas, A. (author), Dias, J. (author)
With the increase in fuel prices, flow control technologies are becoming of greater interest as being the means of achieving a technology quantum leap in the next generation of aircrafts, providing the means to achieve significant reduction in drag (fuel burn) and improvements in aircraft performance, shortening thus the path to accomplish the...
conference paper 2006
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Coustols, E. (author), Jacquin, L. (author), Schrauf, G. (author)
This document provides a synthesis of recent research studies that have been conducted in the last decade within several European projects from the 5th and 6th Framework Programmes. All these studies aimed at a better characterization of aircraft wake vortices and then at their subsequent control. In the latter case, the goal is to minimize the...
conference paper 2006
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Feddema, A. (author)
Door grond horizontaal belaste palen komen voornamelijk voor als in een talud van een ophoging op slappe grond palen worden geplaatst, of wanneer een ophoging wordt aangebracht naast reeds geïnstalleerde palen in een fundering. Als gevolg van de ophoging zal de slappe grond verticaal zetten en ook horizontaal verplaatsen. Deze horizontale...
report 2006
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van Rooijen, W.F.G. (author)
This research concerns the fuel cycle and safety aspects of a Gas Cooled Fast Reactor, one of the so-called "Generation IV" nuclear reactor designs. The Generation IV Gas Cooled Fast Reactor uses helium as coolant at high temperature. The goal of the GCFR is to obtain a "closed nuclear fuel cycle", where only natural uranium is used as raw...
doctoral thesis 2006
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Agung, A. (author)
In this thesis a conceptual design of an innovative high temperature reactor based on the fluidization principle (FLUBER) is proposed. The reactor should satisfy the following requirements: (a) modular and low power, (b)) large shutdown margin, (c) able to produce power when the bed of particles expands and stop as soon as the coolant flow is...
doctoral thesis 2007
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Carlström, C.F. (author), Van der Heijden, R. (author), Andriesse, M.S.P. (author), Karouta, F. (author), Van der Heijden, R.W. (author), Van der Drift, E.W.J.M. (author), Salemink, H.W.M. (author)
An extensive investigation has been performed on inductively coupled plasma etching of InP. An important motivation for this work is the fabrication of high-aspect-ratio holes for photonic crystals. The essential chemistry is based on Cl2 with the addition of N2 or O2 for sidewall passivation. The influence of different process parameters such...
journal article 2008
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Khalili Amiri, P. (author)
doctoral thesis 2008
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Sagkol, H. (author), Rejaei, B. (author), Burghartz, J.N. (author)
An experimental study of the self-heating of micromachined spiral inductors operated under high-power conditions is presented. Typical suspended spiral coils are shown to develop highly elevated temperatures (up to several hundred degrees) under the flow of a moderate to high (> 60 mA) dc current, which often applies to inductors in radio...
journal article 2008
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Mlecnik, E. (author), Hilderson, W. (author)
For the realization of the first passive house demonstration projects in Belgium, passive houses were requested by convinced clients, designed by architects with experience in low energy building, and built by contractors with a feeling for working in building teams. These first passive house examples were not limited to one specific building...
conference paper 2008
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Mlecnik, E. (author), Kaan, H. (author), Hodgson, G. (author)
According to the popular definition, passive houses have to reach a target energy demand for heating less than 15 kWh per square meter and per year. This criterion is used as a basis for quality assurance procedures and certification of passive house projects. This paper identifies the experiences in several western European countries concerning...
conference paper 2008
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Wisse, D. (author)
Sensor nodes are small, autonomous, battery-powered devices that use a wireless network interface to communicate with other sensor nodes. Together these sensor nodes form a Wireless Sensor Network (WSN), which has the purpose to sense information about the environment. Before a WSN is deployed, it is tested using simulators and testbeds. Both...
master thesis 2009
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Verdaasdonk, B.W. (author), Koopman, H.F.J.M. (author), Van der Helm, F.C.T. (author)
Like human walking, passive dynamic walking—i.e. walking down a slope with no actuation except gravity—is energy efficient by exploiting the natural dynamics. In the animal world, neural oscillators termed central pattern generators (CPGs) provide the basic rhythm for muscular activity in locomotion. We present a CPG model, which automatically...
journal article 2009
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