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Zhang, F. (author), de Ridder, H. (author), Barla, Pascal (author), Pont, S.C. (author)We previously presented a systematic optics-based canonical approach to test material-lighting interactions in their full natural ecology, combining canonical material and lighting modes. Analyzing the power of the spherical harmonics components of the lighting allowed us to predict the lighting effects on material perception for generic...journal article 2020
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Zhang, D. (author), Ortiz, Marco A. (author), Bluyssen, P.M. (author)Background: It is well-known that indoor environmental quality (IEQ) in classrooms can have an effect on school children's comfort, health and performance. Unfortunately, information about the school children's perception of IEQ factors in their classrooms is still insufficient. The objective of this study was to better understand school...journal article 2019
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Zhang, D. (author), Bluyssen, P.M. (author)Indoor environmental quality (IEQ) in classrooms can have an effect on school children’s comfort, health, and performance. In most classrooms, the teacher is the only one who can take actions to change the IEQ. The objective of this study was to identify what teachers usually do to improve IEQ in classrooms and how these actions relate to...journal article 2019
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Bluyssen, P.M. (author), Zhang, D. (author), Kim, D.H. (author), Eijkelenboom, A.M. (author), Ortiz, Marco A. (author)To study the combined effect of different environmental factors on children in a classroom setting, 250 children from seven primary schools were exposed to 36 different environmental configurations (‘all’ and ‘fewer’ acoustical panels; ‘displacement’ and ‘mixing’ ventilation; sound type: ‘children talk’, ‘traffic’, and ‘none’; and ‘direct’, ...journal article 2019
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Zhang, S. (author), Zeng, X. (author), Matthews, D. T A (author), Igartua, A. (author), Rodriguez-Vidal, E. (author), Contreras Fortes, J. (author), van der Heide, E. (author)Tactile perception is a complex system, which depends on frictional interactions between skin and counter-body. The contact mechanics of tactile friction is governed by many factors such as the state and properties of skin and counter-body. In order to discover the connection between perception and tactile friction on textured stainless steel...journal article 2017
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Zhang, F. (author), de Ridder, H. (author), Fleming, Ronald W. (author), Pont, S.C. (author)MatMix 1.0 is a novel material probe we developed for quantitatively measuring visual perception of materials. We implemented optical mixing of four canonical scattering modes, represented by photographs, as the basis of the probe. In order to account for a wide range of materials, velvety and glittery (asperity and mesofacet scattering) were...journal article 2016