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- Schwarzl, F. (author), Centraal laboratorium TNO (author) article 1956
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- Vos, O. (author), Davids, J.A.G. (author), Weyzen, W.W.H. (author), van Bekkum, D.W. (author), Medisch Biologisch Laboratorium TNO (author) article 1956
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- van Bekkum, D.W. (author), Medisch Biologisch Laboratorium TNO (author) article 1956
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Heijboer, J. (author), Centraal laboratorium TNO (author)This paper deals with the study of molecular movements in polymers by mechanical measurements. Especially the relation between these movements and the damping is discussed. When the mechanical damping is plotted as a function of frequency several maxima are found; these maxima are absorption bands in the mechanical damping spectrum. For non...article 1956
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- Centraal Instituut voor Voedingsonderzoek TNO Instituut voor Graan Meel en Brood TNO (author) article 1956
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Schwarzl, F. (author), Centraal Laboratorium TNO (author)The linear viscoelastic behaviour of isotropic materials under three dimensional stress distributions is treated by means of a generalised superposition principle, which yields the state of stress under known strain history and vice versa. The material is completely characterised mechanically, if two independent characteristic material functions...article 1956
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- van Bekkum, D.W. (author), Vos, O. (author), Weyzen, W.W.H. (author), Medisch Biologisch Laboratorium TNO (author) article 1956
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- Pasveer, A. (author), Afdeling Gezondheidstechniek TNO (author) article 1956
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- Heijboer, J. (author), Centraal Laboratorium TNO (author) article 1956
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- van der Vegt, A.K. (author), Schuringa, G.J. (author), Centraal laboratorium TNO (author) article 1956
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- Vos, O. (author), van Bekkum, D.W. (author), Medisch Biologisch Laboratorium TNO (author) article 1956
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- Nederlands Instituut voor Praeventieve Gezondheidszorg TNO (author), van den Berg, B.J. (author), de Haas, J.H. (author) article 1956
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- Instituut voor Zintuigfysiologie TNO (author), Lazet, A. (author) article 1956
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Physisch laboratorium RVO-TNO (author), Poley, J.P. (author)Attention is drawn to the fact that the power which can be generated by various electromagnetic radiation sources show a remarkable minimum at frequencies between the long wave infrared and the microwaves. This observed power restriction appears to be of physical nature. This frequency region contains the resonance frequencies of the simplest...article 1956
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- Medisch Biologisch Laboratorium TNO (author), Leeksma, C.H.W. (author), Cohen, J.A. (author) article 1956
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Centraal Laboratorium TNO (author), Janeschitz-Kriegl, H. (author)In order to avoid the thermal perturbation of flow birefringence measurements a modified Couette-apparatus was developed. In the usual apparatus the heat of friction generated in the liquid is removed by thermal conduction through the cylinder walls. As discussed by Björnsthl8) a stationary distribution of temperature is established showing a...article 1956
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Centraal Laboratorium TNO (author), Brinkman, H.C. (author)H. A. Kramers has studied the rate of chemical reactions in view of the Brownian forces caused by a surrounding medium in temperature equilibrium. In a previous paper 3) the author gave a solution of Kramers' diffusion equation in phase space by systematic development. In this paper the general problem of the shuttling forward and back of a...article 1956
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Centraal Laboratorium TNO (author), Brinkman, H.C. (author)Kramers has derived a diffusion equation in phase space, describing the motion of a particle subject to an external force and to the shuttling action of the Brownian forces caused by a surrounding medium in temperature equilibrium. In this paper a solution of Kramers' equation is obtained by systematic development of the particle density with...article 1956
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- Instituut voor Zintuigfysiologie TNO (author), Lazet, A. (author) article 1956
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- Instituut voor Zintuigfysiologie TNO (author), Lazet, A. (author) article 1956