Searched for: mods_originInfo_publisher_s%3A%22Academic%255C%2BPress%22
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Tajdari, F. (author), Berkhoff, A.P. (author), de Boer, A. (author)
This paper focuses on extensive numerical and experimental investigations of a thin sandwich acoustic source. Due to an energy inefficient actuation design, a thin sandwich acoustic source that was proposed in an early study is redesigned and reconstructed in the current research. The thin acoustic source in the present paper is actuated by long...
article 2020
document
van der Schans, M.J. (author)
Chemical warfare agents (CWAs) are the most toxic compounds that have ever been produced. In order to develop medical countermeasures against the effects of these agents, analytical procedures to analyze these agents in their intact form in biological matrices are essential for a better understanding of the toxicological process. Although the...
bookPart 2020
document
Tajdari, F. (author), Berkhoff, A.P. (author), van der Zee, R.A.R. (author), de Boer, A. (author)
article 2020
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Tajdari, F. (author), Berkhoff, A.P. (author), de Boer, A. (author)
This paper studies an acoustic source with a relatively small thickness and a high bending stiffness. The acoustic source operates in the low frequency, quasi-static regime. The focus of the current study is on the actuation part in order to design an appropriate excitation mechanism. A flexural mechanism is modeled in combination with a...
article 2020
document
Cohen, I. (author), Brinkman, W.P. (author), Neerincx, M.A. (author)
Experiencing stress during training is a way to prepare professionals for real-life crises. With the help of feedback tools, professionals can train to recognize and overcome negative effects of stress on task performances. This paper reports two studies that empirically examined the effect of such a feedback system. The system, based on the...
article 2016
document
van der Schans, M.J. (author)
Chemical warfare agents (CWAs) are the most toxic compounds ever produced. To develop medical countermeasures against the effects of these agents, analytical procedures to analyze these agents in biological matrices are essential for a better understanding of the toxicological process. The need for the analysis of biomedical samples can have...
bookPart 2015
document
Hulshof, K.F.A.M. (author), Löwik, M.R.H. (author), Welten, D.C. (author), TNO Voeding (author)
bookPart 2003
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Kuper, C.F. (author), de Heer, E. (author), van Loveren, H. (author), Vos, J.G. (author), TNO Voeding (author)
bookPart 2002
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Pouwels, P.H. (author), Vriesema, A. (author), Martinez, B. (author), Tielen, F.J. (author), Seegers, J.F.M.L. (author), Leer, R.J. (author), Jore, J. (author), Smit, E. (author), TNO Voeding (author)
bookPart 2001
document
Janssens, M.H.A. (author), Verheij, J.W. (author), Thompson, D.J. (author), Technisch Physische Dienst TNO - TH (author)
Structure-borne sound transmission is a complex phenomenon, the accurate measurement of which requires advanced techniques. A multi-dimensional substitution source method is presented by which structure-borne sound transmission paths can be quantified in practical situations where it is not possible to dismount the paths. The paper illustrates,...
article 1999
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Thompson, D.J. (author), van Vliet, W.J. (author), Verheij, J.W. (author), Technisch Physische Dienst TNO - TH (author)
The complex stiffness of resilient elements is an important parameter required in order to model vibration isolation for many applications. Measurement methods are being standardized which allow such a stiffness to be measured as a function of excitation frequency for known loading conditions. This paper describes one such method, the indirect...
article 1998
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Hulshof, K.F.A.M. (author), Löwik, M.R.H. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)
bookPart 1998
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Vincent, N. (author), Bouvet, P. (author), Thompson, D.J. (author), Gautier, P.E. (author), Technisch Physische Dienst TNO - TH (author)
The control of railway rolling noise requires a reduction in wheel and track noise emission. In this paper, a parametric study of the possible minimization of the track sound power is presented. In an initial global approach, a number of potential variations in track parameters are assessed in terms of their likely effect on rolling noise. From...
article 1996
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van Dokkum, W. (author), Fairweather-Tait, S.J. (author), Hurrell, R. (author), Sandström, B. (author), TNO Voeding (author)
bookPart 1996
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Janssens, M.H.A. (author), Thompson, D.J. (author), Technisch Physische Dienst TNO - TH (author)
The sound level of a train crossing a steel railway bridge is usually about 10 dB higher than on plain track. In the Netherlands there are many such bridges which, for practical reasons, cannot be replaced by more intrinsically quiet concrete bridges. A computational model is described for the estimation of noise levels due to a train crossing a...
article 1996
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Thompson, D.J. (author), Fodiman, P. (author), Mahé, H. (author), Technisch Physische Dienst TNO - TH (author)
Two extensive measurement campaigns have been carried out to validate the TWINS prediction program for rolling noise, as described in part 1 of this paper. This second part presents the experimental results of vibration and noise during train pass-bys and compares them with predictions from the TWINS program. The model is found to give quite...
article 1996
document
Thompson, D.J. (author), Technisch Physische Dienst TNO - TH (author)
Theoretical models linking rolling noise and surface roughness have been available for some 20 years. For even longer, the qualitative link has been acknowledged between the presence of visible corrugation on rail or wheel surfaces and increased noise generation. This roughness, or undulation in the surface profile, has wavelengths of most...
article 1996
document
Thompson, D.J. (author), Technisch Physische Dienst TNO - TH (author)
article 1996
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Technisch Physische Dienst TNO - TH (author), Thompson, D.J. (author), Hemsworth, B. (author), Vincent, N. (author)
The C163 Expert Committee of the European Rail Research Institute (ERRI) concerned with Railway Noise, has been developing theoretical models for the generation of wheel/rail rolling noise. These models have been brought together into a software package, called TWINS ("Track-Wheel Interaction Noise Software"). This is intended as a tool with...
article 1996
document
Hulshof, K.F.A.M. (author), Löwik, M.R.H. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)
bookPart 1993
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