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Heyes, P.J. (author), Anastasakis, K. (author), De Jong, W. (author), Van Hoesel, A. (author), Roebroeks, W. (author), Soressi, M. (author)Several Mousterian sites in France have yielded large numbers of small black blocs. The usual interpretation is that these ‘manganese oxides’ were collected for their colouring properties and used in body decoration, potentially for symbolic expression. Neanderthals habitually used fire and if they needed black material for decoration, soot and...journal article 2016
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Van den Haak, L. (author), Rhemrev, J.P. (author), Bikkendaal, M.D. (author), Luteijn, A.C. (author), Van den Dobbelsteen, J.J. (author), Driessen, S.R. (author), Jansen, F.W. (author)New surgical techniques and technology have simplified laparoscopic hysterectomy and have enhanced the safety of this procedure. However, the surgical colpotomy step has not been addressed. This study evaluates the surgical colpotomy step in laparoscopic hysterectomy with respect to difficulty and duration. Furthermore, it proposes an...journal article 2016
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Ma, L. (author)The objective of the research presented in this thesis is development and validation of predictive models or modeling approaches of liquid fuel combustion (spray combustion) in hot-diluted environments, known as flameless combustion or MILD combustion. The goal is to combine good physical insight, appropriate numerical methods and good software...doctoral thesis 2016
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Dunning, A.G. (author)The goal of this dissertation is to develop a wearable, passive, dynamic arm support that provides users with Duchenne muscular dystrophy (DMD) with support to perform activities of daily living. The arm support needs to be inconspicuous and not stigmatizing, to encourage the users to participate in social activities. Ideally, the device fits...doctoral thesis 2016
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Lopez Lena Estrada, R. (author)In almost every field of applied science and engineering, dynamical models are widely used as a professional tool to describe in a compact format the scientific knowledge we have about the phenomena we are analyzing. Such models are widely used for the estimation, optimization, detection of failures and even for real-time control. The relevance...doctoral thesis 2016
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Sloof, W.G. (author), Pei, R. (author), McDonald, S.A. (author), Fife, J.L. (author), Shen, L. (author), Boatemaa, L. (author), Farle, A.S. (author), Yan, K. (author), Zhang, X. (author), Van der Zwaag, S. (author), Lee, P.D. (author), Withers, P.J. (author)MAX phase materials are emerging as attractive engineering materials in applications where the material is exposed to severe thermal and mechanical conditions in an oxidative environment. The Ti2AlC MAX phase possesses attractive thermomechanical properties even beyond a temperature of 1000 K. An attractive feature of this material is its...journal article 2016
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Pennings, P.C. (author)This thesis describes the mechanisms with which tip vortex cavitation is responsible for broadband pressure fluctuations on ship propellers. Hypotheses for these are described in detail by Bosschers (2009). Validation is provided by three main cavitation-tunnel experiments, one on a model propeller and two on a stationary wing. These have...doctoral thesis 2016
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Liu, Y. (author), Mol, J.M.C. (author), Janssen, G.C.A.M. (author)The aluminium alloy 7075-T6 is widely used in engineering. In some applications, like slurry transport, corrosion and abrasion occur simultaneously, resulting in early material failure. In the present work, we investigated the combined effect of corrosion and wear on the aluminium alloy 7075-T6. We performed two series of wear experiments to...journal article 2016
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Kirschneck, M. (author)The ever growing population of human beings on earth introduces the challenge of providing affordable, sustainable energy for everyone. Emerging markets, such as China, India or Brazil, quench their thirst for cheap energy by fossil fuels and nuclear power. At the same time researchers from all over the globe warn the public of the advent of a...doctoral thesis 2016
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Onneweer, B. (author)Haptic technology is more and more widely used to improve human interaction with devices, for example in touch screens of smartphones that vibrate when touched. Another application is haptic-tele-manipulation where a human controls a slave manipulator (e.g. a surgical-robot) by using a master device (e.g. a joystick). In haptic-tele-manipulation...doctoral thesis 2016
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Peters, H.J. (author)This thesis studies a controllability approach for general resonant compliant systems. These systems exploit resonance to obtain a specific dynamic response at relatively low actuation power. This type of systems is often lightweight, is scalable and minimizes frictional losses through the use of compliant hinges. Some insect-inspired Flapping...doctoral thesis 2016
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Pennings, P.C. (author), Westerweel, J. (author), Van Terwisga, T.J.C. (author)The goal of this study is to test the hypothesis that the resonance of a tip vortex cavity is responsible for high-amplitude broadband pressure-fluctuations, typically between 40 and 70 Hz,Hz, for a full scale propeller. This is achieved with a model propeller in a cavitation tunnel. Simultaneous high-speed video shadowgraphy and sound...journal article 2016
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Reus, M.A. (author)In this dissertation crystallization and microencapsulation processes are used to produce multicomponent particulate products with different functionalities (improved stability, controlled release, protection from environment, etc.) and their performance is assessed. Additionally, the interactions between the components in the processes are...doctoral thesis 2016
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Yakaboylu, O. (author)In the following decades, biomass will play an important role among the other renewable energy sources globally as it is already the fourth largest energy resource after coal, oil and natural gas. It is possible to obtain gaseous, liquid or solid biofuels from biomass via thermochemical or biochemical conversion routes. Among them, gasification...doctoral thesis 2016
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Goulas, C. (author), Mecozzi, M.G. (author), Sietsma, J. (author)In this paper, the effect of chemical inhomogeneity on the isothermal bainite formation is investigated in medium-carbon low-silicon spring steel by dilatometry and microscopy. The analysis of the microstructure at different times during transformation shows that chemical segregation of substitutional alloying elements resulting from casting...journal article 2016
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Pasma, J.H. (author), Engelhart, D. (author), Maier, A.B. (author), Aarts, R.G.K.M. (author), Van Gerven, J.M.A. (author), Arendzen, J.H. (author), Schouten, A.C. (author), Meskers, C.G.M. (author), Van der Kooij, H. (author)Objectives System identification techniques have the potential to assess the contribution of the underlying systems involved in standing balance by applying well-known disturbances. We investigated the reliability of standing balance parameters obtained with multivariate closed loop system identification techniques. Methods In twelve healthy...journal article 2016
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Krintiras, G. (author)To meet the increasing need for protein-rich food of an ever growing population, plant-based proteins are being utilized in meat products as replacements for animal-based proteins. Legumes such as soy can serve as an alternative protein source, by featuring both high protein content (36%) and protein functionality (gelation). Nowadays various...doctoral thesis 2016
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Bojack, A. (author), Zhao, L. (author), Morris, P.F. (author), Sietsma, J. (author)The influence of austenitization treatment of a 13Cr6Ni2Mo supermartensitic stainless steel (X2CrNiMoV13-5-2) on austenite formation during reheating and on the fraction of austenite retained after tempering treatment is measured and analyzed. The results show the formation of austenite in two stages. This is probably due to inhomogeneous...journal article 2016
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Ravi, A.M. (author), Sietsma, J. (author), Santofimia, M.J. (author)Bainite formation in steels begins with nucleation of bainitic ferrite at austenite grain boundaries (?/? interfaces). This leads to creation of bainitic ferrite/austenite interfaces (?/? interfaces). Bainite formation continues through autocatalysis with nucleation of bainitic ferrite at these newly created ?/? interfaces. The displacive theory...journal article 2016
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Janbaz, S. (author), Weinans, H. (author), Zadpoor, A.A. (author)Recent research has shown the potential of rationally designed geometrical features for controlling the functionality of advanced materials. Of particular recent interest has been the use of geometry for controlling the buckling behaviour of soft materials under compression. However, the effects of geometry may be mixed with those of the...journal article 2016