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Van Leeuwen, R. (author)In this thesis the physics of nanoscale mechanical resonators and oscillators is studied. We discuss two types of resonators. First, a top-down fabricated doubly clamped beam resonator with an integrated piezoelectric actuator is introduced. The second type of resonators are based on layered two-dimensional materials, such as graphene and...doctoral thesis 2015
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Van Leeuwen, T. (author)Most of our knowledge of the subsurface comes from the measurement of quantities that are indirectly related to the earth’s structure. Examples are seismic waves, gravity and electromagnetic waves. We consider the use of seismic waves for inference of structural information on an exploration scale. The seismic waves are generated by placing...doctoral thesis 2010
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Van Leeuwen, G. (author)There are still many puzzles to be solved concerning the relation between innovation and firm performance, in particular concerning the distinct roles of information and communication technology (ICT) and Research and Development (R&D) in creating new or improved products or production processes. This thesis provides evidence that both instances...doctoral thesis 2009
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- Van Leeuwen, M. (author) doctoral thesis 2008
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- Van Leeuwen, M.L.J. (author) doctoral thesis 1998
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- Van Leeuwen, P.J. (author) doctoral thesis 1992
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- Van Leeuwen, C. (author) doctoral thesis 1977
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- Van Leeuwen, H.P. (author) doctoral thesis 1976
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- Van Leeuwen, G.C.M. (author) doctoral thesis 1974
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- Van Leeuwen, L.C.A. (author) doctoral thesis 1957