document

On the interaction of Tollmien-Schlichting waves with a wall-embedded Helmholtz resonator

Michelis, Theodorus (author), De Koning, C. (author), Kotsonis, M. (author)

The influence of a wall-embedded Helmholtz resonator on the development and stability of Tollmien-Schlichting (TS) waves is investigated numerically and experimentally for a range of frequencies extending from below to above resonance. Interactions are found to be limited in the near-wall region and toward the trailing edge of the resonator...

journal article 2023

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Towards determination of power loss at a rowing blade: Validation of a new method to estimate blade force characteristics

Lintmeijer, Lotte L. (author), Onneweer, John P.T. (author), Hofmijster, Mathijs J. (author), Wijgergangs, Willem A. (author), De Koning, Hans (author), Clairbois, Bert (author), Westerweel, J. (author), Grift, E.J. (author), Tummers, M.J. (author), van Soest, A.M.J. (author)

To analyze on-water rowing performance, a valid determination of the power loss due to the generation of propulsion is required. This power los can be calculated as the dot product of the net water force vector ( ^~ F _w;o ) and the time derivative of the position vector of the point at the blade where ^~ F <sub...

journal article 2019

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Diffuse reflectance spectroscopy as a tool for real-time tissue assessment during colorectal cancer surgery

Baltussen, Elisabeth J.M. (author), Snaebjornsson, Petur (author), De Koning, Susan G.Brouwer (author), Sterenborg, Henricus J.C.M. (author), Aalbers, Arend G.J. (author), Kok, Niels (author), Beets, Geerard L. (author), Hendriks, B.H.W. (author), Kuhlmann, Koert F.D. (author), Ruers, Theo J.M. (author)

Colorectal surgery is the standard treatment for patients with colorectal cancer. To overcome two of the main challenges, the circumferential resection margin and postoperative complications, real-time tissue assessment could be of great benefit during surgery. In this ex vivo study, diffuse reflectance spectroscopy (DRS) was used to...

journal article 2017

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Strategies for integrated densification with urban qualities: Combining Space Syntax with building density, land usage, public transport and property rights in Bergen city

De Koning, R.E. (author), van Nes, A. (author), Ye, Y. (author), Roald, H.J. (author)

Bergen city in Norway is presently undergoing an enormous population growth. In this respect, Bergen municipality wanted to identify all the possibilities for densification in the current situation. Therefore, the following issues were evaluated: street network and public transport accessibility, building density, degree of functional...

conference paper 2017

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The unmanned aerial vehicle; a small history of violence

De Koning, R.V. (author)

At Aerospace Engineering, one can hardly miss the Unmanned Aerial Vehicle (UAV). Many commercial purposes have been investigated in recent years. Also, unmanned reconnaissance and combat aircraft attract more interest; in hazardous regions, small aircraft can be deployed to do risky, but necessary jobs. And with success. But is the idea of using...

journal article 2013

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"Ever had an extraterrestrial experience?" ; interview with first Dutch-born astronaut Lodewijk van den Berg

De Koning, R.V. (author), Motsyk, O. (author)

journal article 2012

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Editorial: Models: the idea, the representation and the visionary / Redactioneel: Maquettes: het idee, de verbeelding en het visonaire

Holtrop, A. (author), Floris, J. (author), Teerds, P.J. (author), Princen, B. (author), De Koning, K. (author)

journal article 2011

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Benefits of co-design in service design projects

Steen, M. (author), Manschot, M.A.J. (author), De Koning, N. (author)

In many service design projects, co-design is seen as critical to success and a range of benefits are attributed to co-design. In this paper, we present an overview of benefits of co-design in service design projects, in order to help the people involved to articulate more precisely and realistically which benefits to aim for. Based on a...

journal article 2011

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Method and apparatus for separating parts, in particular seeds, having different densities

Rem, P.C. (author), Berkhout, S.P.M. (author), De Koning, J.R.A. (author)

A method for separating seeds of different densities in a process stream, wherein the seeds are introduced into a magnetic process fluid for the formation of the process stream, which process stream is subjected to a magnetic field for the realization of a density stratification in the process stream, such that the individual seeds in the...

patent 2009

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The Dutch Soccer Team as a Social Network

Kooij, R. (author), Jamakovic, A. (author), Van Kesteren, F. (author), De Koning, T. (author), Theisler, I. (author), Veldhoven, P. (author)

Although being very popular all around the globe, soccer has not received much attention from the scientific community. In this paper we will study the Dutch Soccer Team from the perspective of complex networks. In the DST network every node corresponds to a player that has played an official match for the Dutch Soccer Team. A node is connected...

journal article 2009

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Of MOS and men: Bridging the gap between objective and subjective quality measurements in mobile TV

De Koning, T.C.M. (author), Veldhoven, P. (author), Knoche, H. (author), Kooij, R.E. (author)

In this paper we explore the relation between subjective and objective measures of video quality. We computed objective MOS values from video clips using the video quality measuring tool VQM and compared it to the clips’ subjective Acceptability scores. Using the ITU defined mapping (M2G) from MOS to binary Good or Better (GoB) values, we...

conference paper 2007

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Man-machine interface

Keyson, D.V. (author), Ross, P.R. (author), Vastenburg, M.H. (author), De Koning, N.M. (author)

The invention relates to an interface for maintaining man-machine communication with a control system for tuning appliances that influence the ambience, wherein a user command given during operation is converted to settings of these appliances in accordance with at least one predetermined conversion model, wherein the conversion model is a three...

patent 2005

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Het onderzoek naar de gekombineerde behandeling van met hexacyanoferraat verontreinigd grondwater en stedelijk afvalwater

De Koning, J. (author)

doctoral thesis 1995

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Terugblik naar de toekomst

De Koning, J. (author)

public lecture 1993

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Compensatability and optimal compensation of systems with white parameters

De Koning, W.L. (author)

journal article 1992

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Numerical and Experimental Determination of Strain (Stress) Concentration Factors of Welded Joints between Square Hollow Sections

Puthli, R.S. (author), Wardenier, J. (author), De Koning, C.H.M. (author), Van Wingerde, A.M. (author), Van Dooren, F.J. (author)

This article presents methods of approach for finite element modelling of joints made of rectangular hollow steel sections where the brace members are welded to the face of the chord, to obtain strain (stress) concentration factors, SNCF (SCF). X, T and K type joints are considered. Simple modelling methods are applied for practical reasons, so...

journal article 1988

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Digital optimal control systems with stochastic parameters

De Koning, W.L. (author)

doctoral thesis 1984

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The peelstrength of Aramid reinforced materials, preliminary results

De Koning, C.A.M. (author)

report 1982

document

Windturbines in zee

De Koning, M.J.A. (author), Swart, W. (author), Verhagen, H.J. (author)

Onderzoek van Rijn-Schelde-Verolme en Hydronamic naar de mogelijkheden tot het plaatsen van windturbines op de Noordzee in het kader van het Nationaal Onderzoekprogramma Windenergie.

report 1978

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Denken met de handen

De Koning, J. (author)

public lecture 1978