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de Baar, M.R. (author), Bongers, W.A. (author), van Berkel, M. (author), Doelman, N.J. (author), Hennen, B.A. (author), Nuij, P. (author), Oosterbeek, J.W. (author), Steinbuch, M. (author), Westerhof, E. (author), Witvoet, G. (author)Resistive magneto-hydrodynamic instabilities are expected to limit the performance of nuclear fusion reactors. Prime examples are the sawtooth instability and the neoclassical tearing modes. The sawtooth instability will affect the refueling of the plasma core and the fast particle concentration. In reactor relevant conditions, the sawtooth can...conference paper 2011
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Koenders, E. (author), in 't Velt, R. (author)After the successful demonstrations of cooperative technology by the CVIS and Safespot projects the question remains how this technology can be successfully deployed. This question is explored by the Field Operational Test project FREILOT, which aims to provide fuel economy applications that must be used in real life for one year of evaluation,...conference paper 2011
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Colin, M.E.G.D. (author), von Benda-Beckmann, A.M. (author)Assets at sea are vulnerable to attacks from fast craft relying on the effect of surprise. These threats are not necessarily stealthy but leave a very limited time of reaction to the platform at risk. Early detection of the approaching vessel provides an opportunity for the attacked ship to react in time. Accurate localisation of the threat...conference paper 2011
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Myny, K. (author), Steudel, S. (author), Smout, S. (author), Vicca, P. (author), Furthner, F. (author), van der Putten, B. (author), Tripathi, A.K. (author), Gelinck, G.H. (author), Genoe, J. (author), Dehaene, W. (author), Heremans, P. (author), Imec, Kapeldreef 75, 3001 Leuven, Belgium Katholieke Hogeschool Limburg, 3590 Diepenbeek, Belgium Katholieke Universiteit Leuven, 3001 Leuven, Belgium TNO-Holst Centre, High-Tech Campus 31, P.O. Box 8550, 5605KN Eindhoven, Netherlands (author)Data rates of plastic transponder chips have been limited to a few kHz, limited by the inherent low mobility of organic semiconductors. However, a target application for plastic RFID tags is Electronic Product Coding (EPC), which will require, at a base carrier frequency fc = 13.56 MHz, a data rate of fc/512 = 52.969 kb/s. In this work, we show...article 2010
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Klein Hesselink, J. (author), de Leede, J. (author), Goudswaard, A. (author), TNO Kwaliteit van Leven (author)This article reports a field study of a shift roster change in a large steel producer. The changes in the roster are threefold: (1) from backward rotating to forward rotating; (2) from rather slow (three) to fast rotating (two consecutive shifts); (3) the number of days off after the night shifts was changed from two to three. Company data cover...article 2010
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Werner, F. (author), Veith, B. (author), Tiba, V. (author), Poodt, P.W.G. (author), Roozeboom, F. (author), Brendel, R. (author), Schmidt, J. (author)Using aluminum oxide (<sub>Al2</sub> O<sub>3</sub>) films deposited by high-rate spatial atomic layer deposition (ALD), we achieve very low surface recombination velocities of 6.5 cm/s on p -type and 8.1 cm/s on n -type crystalline silicon wafers. Using spatially separated reaction zones instead of the conventional time-sequenced precursor...article 2010
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Marasini, C. (author), Lepelaars, E.S.A.M. (author), Zwamborn, A.P.M. (author), TNO Defensie en Veiligheid (author)Efficient and accurate evaluation of the EM field radiated by a current flowing along a wire is essential to solve the electromagnetic coupling between arbitrary oriented wires. In this paper, a numerically efficient algorithm for the evaluation of coupling is presented. The currents along the wires are expressed in terms of local basis...article 2009
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Mandjes, M. (author), Roijers, F. (author), TNO Informatie- en Communicatietechnologie (author)The c-congestion period, defined as a time interval in which the number of customers is larger than c all the time, is a key quantity in the design of communication networks. Particularly in the setting of M/M/∞ systems, the analysis of the duration of the congestion period, D<sub>c</sub>, has attracted substantial attention; related quantities...article 2009
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Beerkens, R.G.C. (author), TNO Industrie en Techniek (author)Conventional industrial glass furnaces show broad glass melt residence time distributions in the melting tanks and average residence times may be up to more than two days for high quality glass products, such as float glass or TV glass, despite the minimum residence times of 8-10 hours (or even less than 4 hours for container glass furnaces)....article 2008
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TNO Informatie- en Communicatietechnologie (author), Dimitrova, D.C. (author), Heijenk, G. (author), van den Berg, J.L. (author), Litjens, R. (author)The UMTS Enhanced Uplink (EUL) is expected to provide higher capacity, increased data rates, and smaller latency on the communication link from users towards the network. A key mechanism in EUL traffic handling is the packet scheduler, for which a number of basic schemes can be identified (one-by-one, partial parallel, and full parallel). In...conference paper 2008
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Blom, W.A.M. (author), Mars, M. (author), Hendriks, H.F.J. (author), de Groot, L.C.P.G.M. (author), Stafleu, A. (author), Kok, F.J. (author), de Graaf, C. (author), TNO Kwaliteit van Leven (author)Objective: To study the role of ghrelin as a hunger signal during energy restriction and to test the hypothesis that changes in fasting leptin concentrations during energy restriction are associated with changes in fasting ghrelin concentrations. Research Methods and Procedures: Thirty-five healthy, lean men (23 ± 3 years of age; BMI: 22.3 ±1.6...article 2006
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Verhoef, P. (author), van Vliet, T. (author), Olthof, M.R. (author), Katan, M.B. (author), TNO Kwaliteit van Leven (author)Background: A high plasma concentration of total homocysteine (tHcy) is associated with increased risk of cardiovascular disease. A high protein intake and hence a high intake of methionine-the sole dietary precursor of homocysteine-may raise plasma tHcy concentrations. Objectives: We studied whether high intake of protein increases plasma...article 2005
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Verheijen, O.S. (author), op den Camp, O.M.G.C. (author), Beerkens, R.G.C. (author), Backx, T. (author), Huisman, L. (author), TNO Industrie en Techniek (author)For the automatic control of glass quality in glass production, the relation between process variable and product or glass quality and process conditions/process input parameters must be known in detail. So far, detailed 3-D glass melting simulation models were used to predict the effect of process input variables, such as fuel consumption and...conference paper 2005
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Wykretowicz, A. (author), Guzik, P. (author), Bartkowiak, G. (author), Krauze, T. (author), Kasinowski, R. (author), Dziarmaga, M. (author), Wesseling, K.H. (author), Wysocki, H. (author), TNO Biomedical Instrumentation (author)Endothelial dysfunction and reduced BRS (baroreflex sensitivity) may be present in patients with CAD (coronary artery disease). The normal fasting glucose level does not exclude abnormal glucose metabolism in patients with CAD. The aim of present study was to evaluate endothelial function and BRS according to glucose metabolism in patients with...article 2005
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Olthof, M.R. (author), Brink, E.J. (author), Katan, M.B. (author), Verhoef, P. (author), TNO Kwaliteit van Leven (author)Background: A high homocysteine concentration is a potential risk factor for cardiovascular disease that can be reduced through betaine supplementation. Choline is the precursor for betaine, but the effects of choline supplementation on plasma total homocysteine (tHcy) concentrations in healthy humans are unknown. Objective: The objective was to...article 2005
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TNO Kwaliteit van Leven (author), Heijboer, A.C. (author), Donga, E. (author), Voshol, P.J. (author), Dang, Z.C. (author), Havekes, L.M. (author), Romijn, J.A. (author), Corssmit, E.P.M. (author)Fasting readily induces hepatic steatosis. Hepatic steatosis is associated with hepatic insulin resistance. The purpose of the present study was to document the effects of 16 h of fasting in wild-type mice on insulin sensitivity in liver and skeletal muscle in relation to 1) tissue accumulation of triglycerides (TGs) and 2) changes in mRNA...article 2005
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- van Dam, R.M. (author), Pasman, W.J. (author), Verhoef, P. (author), TNO Voeding (author) article 2004
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Verhoef, P. (author), Steenge, G.R. (author), Boelsma, E. (author), van Vliet, T. (author), Olthof, M.R. (author), Katan, M.B. (author), TNO Voeding (author)Background: A high plasma total homocysteine (tHcy) concentration is a risk factor for cardiovascular disease. The increase in tHcy induced by methionine, the sole dietary precursor of homocysteine, might be modulated by other amino acids present in dietary proteins. Objectives: Our objectives were to compare the postprandial effect of free and...article 2004
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TNO Preventie en Gezondheid (author), Mandard, S. (author), Zandbergen, F. (author), Nguan, S.T. (author), Escher, P. (author), Patsouris, D. (author), Koenig, W. (author), Kleemann, R. (author), Bakker, A. (author), Veenman, F. (author), Wahli, W. (author), Müller, M. (author), Kersten, S. (author)The fasting-induced adipose factor (FIAF, ANGPTL4, PGAR, HFARP) was previously identified as a novel adipocytokine that was up-regulated by fasting, by peroxisome proliferator-activated receptor agonists, and by hypoxia. To further characterize FIAF, we studied regulation of FIAF mRNA and protein in liver and adipose cell lines as well as in...article 2004
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Voshol, P.J. (author), Haemmerle, G. (author), Ouwens, D.M. (author), Zimmermann, R. (author), Zechner, R. (author), Teusink, B. (author), Maassen, J.A. (author), Havekes, L.M. (author), Romijn, J.A. (author)Hormone-sensitive lipase (HSL) is a major enzyme for triglyceride (TG) lipolysis in adipose tissue. In HSL-knockout mice, plasma free fatty acid and TG levels are low, associated with low liver TG content. Because a decreased hepatic insulin sensitivity has been reported to be associated with high liver TG levels, our aim was to determine...article 2003