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- Williams, P. (author), Lansdorp, B. (author), Ockels, W. (author) conference paper 2007
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- Williams, P. (author), Lansdorp, B. (author), Ockels, W. (author) conference paper 2007
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Appleby, G.A. (author), Edgar, A. (author), Williams, G.V.M. (author), Bos, A.J.J. (author)A glass-ceramic thermal neutron imaging plate material is reported. The material consists of a neutron sensitive 2B2O3–Li2O glass matrix containing nanocrystallites of the storage phosphor BaCl2:Eu2+. When doped with 0.5?mol?% Eu2+, the neutron induced photostimulated luminescence (PSL) conversion efficiency of the 10B enriched glass-ceramic is...journal article 2006
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Matthews, L.A. (author), Greaves, D.M. (author), Williams, C.J.K. (author)This research project aims to study large displacement fluid-structure interaction (FSI) problems through the development of a computational FSI code. The Navier-Stokes equations describing the behaviour of a viscous Newtonian fluid are discretised on a moving unstructured triangular mesh using the Finite Volume method. In two-dimensions the...conference paper 2006
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Baryshev, A. (author), Hovenier, J.N. (author), Adam, A.J.L. (author), Kaalynas, I. (author), Gao, J.R. (author), Klaassen, T.O. (author), Williams, B.S. (author), Kumar, S. (author), Hu, Q. (author), Reno, J.L. (author)We have studied the phase locking and spectral linewidth of an ? 2.7?THz quantum cascade laser by mixing its two lateral lasing modes. The beat signal at about 8?GHz is compared with a microwave reference by applying conventional phase lock loop circuitry with feedback to the laser bias current. Phase locking has been demonstrated, resulting in...journal article 2006
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Adam, A.J.L. (author), Kaalynas, I. (author), Hovenier, J.N. (author), Klaassen, T.O. (author), Gao, J.R. (author), Orlova, E.E. (author), Williams, B.S. (author), Kumar, S. (author), Hu, Q. (author), Reno, J.L. (author)The need to reach single-mode lasing and minimize at the same time the electrical dissipation of cryogenically operated terahertz quantum cascade lasers may result in small and subwavelength cavity dimensions. To assess the influence of such dimensions on the shape of the laser emission, we have measured the beam pattern of two metal-metal...journal article 2006
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Lansdorp, B. (author), Williams, P. (author)The Laddermill is a novel concept to harvest electricity from high altitude winds. The concept's operating principle is to drive an electric generator using tethered kites. Several kites are deployed to altitudes of more than 1 km by means of a single cable that is connected to a drum on the groundstation. The upper portion of the cable is...journal article 2006
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- Orlova, E.E. (author), Hovenier, J.N. (author), Klaassen, T.O. (author), Kasalynas, I. (author), Adam, A.J.L. (author), Gao, J.R. (author), Klapwijk, T.M. (author), Williams, B.S. (author), Kumar, S. (author), Hu, Q. (author), Reno, J.L. (author) journal article 2006
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Gao, J.R. (author), Hovenier, J.N. (author), Yang, Z.Q. (author), Baselmans, J.J.A. (author), Baryshev, A. (author), Hajenius, M. (author), Klapwijk, T.M. (author), Adam, A.J.L. (author), Klaassen, T.O. (author), Williams, B.S. (author), Kumar, S. (author), Hu, Q. (author), Reno, J.L. (author)We report the first demonstration of an all solid-state heterodyne receiver that can be used for high-resolution spectroscopy above 2?THz suitable for space-based observatories. The receiver uses a NbN superconducting hot-electron bolometer as mixer and a quantum cascade laser operating at 2.8?THz as local oscillator. We measure a double...journal article 2005
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- Chevtchenko, O.A. (author), van den Brom, H.E. (author), Houtzager, E. (author), Behr, R. (author), Kohlmann, J. (author), Williams, J.M. (author), Janssen, T.J.B.M. (author), Palafox, L. (author), Humphreys, D.A. (author), Piquemal, F. (author), Djordjevic, S. (author), Monnoye, O. (author), Poletaeff, A. (author), Lapuh, R. (author), Rydler, K.E. (author), Eklund, G. (author) journal article 2005
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- Williams, Richard (author) conference paper 1999
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- Williams, J.S. (author), Rush, H. (author) conference paper 1993
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- Williams, D. (author), Woodward, J. (author) conference paper 1991
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- Alleyne, P. (author), Rhoden, D. (author), Williams, D. (author) conference paper 1991
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- Williams, Ake (author) report 1983
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Kilborn, I. (author), Williams, D.P. (author)Past cycle counting methods a r e briefly reviewed and the observed response of structural metals subjected to fluctuating loading is described. On the basis of stabilized elasto-plastic behaviour, cycle counting method which an improved extends the rainflow technique is computer algorithm. counts of full cycles incremental half-cycle formulated...report 1982
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- Williams, Ake (author) report 1980
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- Williams, Ake (author) report 1978
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- Williams, Ake (author) report 1975
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- Williams, Ake (author) report 1974