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- Spivakovskaya, D. (author) doctoral thesis 2007
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Wu, H.C. (author)In this thesis, a referenced based scaling approach and its parameter extraction for the bipolar transistor model Mextram is proposed. It is mainly based on the physical properties of the Mextram parameters, which scale with the junction temperature and geometry of the bipolar transistor. The scalable electrical parameter in the scaling rules is...doctoral thesis 2007
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- Den Rooijen, R.H. (author) master thesis 2007
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Zagonjolli, M. (author)In this thesis a range of modelling techniques is explored to deal effectively with flood risk management. In particular, attention is paid to floods caused by failure of hydraulic structures such as dams and dikes. The methods considered here are applied for simulating dam and dike failure events, flood water routing in downstream areas, and...doctoral thesis 2007
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Rousseaux, O. (author), Leus, G. (author), Moonen, M. (author)To allow for a computationally efficient equalization scheme for the frequency-selective transmission channels encountered in wireless local area network (WLAN) applications, cyclic prefix (CP) block transmission schemes have been proposed, such as single-carrier CP (SC-CP) and multi-carrier CP (MC-CP) transmission, also known as orthogonal...journal article 2007
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Khosropanah, P. (author), Laauwen, W.M. (author), Gao, J.R. (author), Hajenius, M. (author), Hovenier, J.N. (author), Klapwijk, T.M. (author)We have characterized a heterodyne receiver based on an NbN hot electron bolometer integrated with spiral antenna as mixer and an optically pumped FIR ring laser at 4.3 THz as local oscillator (LO). We succeeded in measuring the receiver output power, responding to the hot/cold load, as a function of bias voltage at optimum LO power. From the...conference paper 2007
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Ridderhof, W. (author), Gross, H-G. (author), Doerr, H. (author)The upcoming safety standard ISO/WD 26262 that has been derived from the more general IEC 61508 and adapted for the automotive industry, introduces the concept of a safety case, a scheme that has already been successfully applied in other sectors of industry such as nuclear, defense, aerospace, and railway. A safety case communicates a clear,...report 2007
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van der Bas, R. (author)The least-squares spectral element method (LSSEM) is a relatively new state of the art numerical method which is capable of solving complex problems with high accuracy. Very promising results for hyperbolic equations using a spacetime formulation have recently been obtained. In this report steady state solutions for 2D hyperbolic systems of...master thesis 2007
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De Vries, M. (author)Consider the set U of real numbers q >= 1 for which only one sequence (c(i)) of integers 0 <= c(i) <= q satisfies the equality Sigma(infinity)(i= 1) ciq(-i) =1. We show that the set of algebraic numbers in U is dense in the closure (U) over bar of U.journal article 2007
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Lam, N.T. (author), Stive, M.J.F. (author), Verhagen, H.J. (author), Wang, Z.B. (author)Morphodynamics of a tidal inlet system on a micro-tidal coast in a tropical monsoon influenced region is modelled and discussed. Effects of tides, waves, river flows and system configuration on the inlet morphologies are investigated with the aid of process-based state-of-the-art numerical models. Seasonal and episodic behaviour of the inlet...conference paper 2007
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- Marques Da Cruz, E.F. (author) master thesis 2007
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Hoan, N.T. (author), Booij, R. (author), Stive, M.J.F. (author), Verhagen, H.J. (author)The velocity and turbulence distributions of decelerating open-channel flow in a gradual expansion were measured using LDV equipment. The results show that the logarithmic law can describe the mean velocity in the bottom region well while the Coles’ law can be applied to the outer region. The shear velocity can be determined both by the...conference paper 2007
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Vink, I.T. (author), Nooitgedagt, T. (author), Schouten, R.N. (author), Vandersypen, L.M.K. (author), Wegscheider, W. (author)The authors employ a cryogenic high electron mobility transistor (HEMT) amplifier to increase the bandwidth of a charge detection setup with a quantum point contact (QPC) charge sensor. The HEMT is operating at 1?K and the circuit has a bandwidth of 1?MHz. The noise contribution of the HEMT at high frequencies is only a few times higher than...journal article 2007
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Prinsen, P. (author), Odijk, T. (author)A theory is presented for ?C, the coefficient of the first-order correction in the density of the collective diffusion coefficient, for protein spheres interacting by electrostatic and adhesive forces. An extensive numerical analysis of the Stokesian hydrodynamics of two moving spheres is given so as to gauge the precise impact of lubrication...journal article 2007
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Kim, D.S. (author)As the world concerns more and more on global climate changes and depleting energy resources, solar cooling technology receives increasing interests from the public as an environment-friendly and sustainable alternative. However, making a competitive solar cooling machine for the market still remains a challenge to the academic and industrial...doctoral thesis 2007
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Coyajee, E.R.A. (author)A large variety of industrial processes involves a mixture of two immiscible liquids, e.g. emulsification in food industry and mixing in (petro-)chemical reactors. Understanding the dynamics and interaction of bubbles and droplets in these processes is crucial for economically and ecologically optimized design. Although experimental...doctoral thesis 2007
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Mulira, N.K. (author)Public organizations in the developing world are undergoing a gradual but irreversible change, due to innovations in information and communications technologies. The emergence of business networks, among such organizations, indicates an increasing interdependence and a search for solutions to regain waning strategic relevance and competitive...doctoral thesis 2007
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Veltkamp, M. (author)Irregularly shaped buildings with double curved surfaces, also known as free forms or Blobs, have regained interest from architects. Those actually built however, despite their futuristic look, have load-bearing structures which are still based on conventional principles, as building systems suitable for these new shapes do not exist. The...doctoral thesis 2007
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- Ostergaard, J. (author), Zamir, R. (author) journal article 2007
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Kreeft, J.J. (author)Multi-fluid flows are found in many applications in engineering and physics. Examples of these flows from engineering are water-air flows in ship hydrodynamics, exhaust-air flows behind rockets, gas-petrolea flows in upstream pipes of oilrigs, air-fuel bubble interaction flows in scramjets and many others. To gain better insight in the behavior...master thesis 2007