Browsing Faculty of Engineering by Submit Date

Now showing items 21-40 of 207

  • Photoneutron cross sections for unstable neutron-rich oxygen isotopes 

    Leistenschneider, A.; Aumann, T.; Boretzky, K.; Cortina, D.; Cub, J.; Datta Pramanik, U.; Dostal, W.; Elze, Th W.; Emling, H.; Geissel, H.; Grunschlo, A.; Hellstr, M.; Holzmann, R.; Ilievski, S.; Iwasa, N.; Kaspar, M.; Kleinbohl, A.; Kratz, J. V.; Kulessa, R.; Leifels, Y.; Lubkiewicz, E.; Munzenberg, G.; Reiter, P.; Rejmund, M.; Scheidenberger, C.; Schlegel, C.; Simon, H.; Stroth, J.; Summerer, K.; Wajda, E.; Walus, W.; Wan, S. (American Institute of Physics Inc, 2001)
    The evolution of giant dipole strength with neutron excess for the neutron-rich oxygen isotopes from A=17 to A=22 was measured systematically. It was found through all neutron-rich oxygen isotopes investigated that the ...

  • Vertical nanowire light-emitting diode 

    Konenkamp, R.; Word, Robert C.; Schlegel, C. (American Institute of Physics Inc, 2004)
    We report room-temperature, white-color electroluminescence in vertically oriented ZnO nanowires. Excitonic luminescence around 380 nm is observed as a shoulder on a broader defect-related band covering all of the visible ...

  • Gd-based single-ion magnets with tunable magnetic anisotropy: Molecular design of spin qubits 

    Martinez-Perez, M.; Cardona-Serra, S.; Schlegel, C.; Moro, F.; Alonso, P. J.; Prima-Garcia, H.; Clemente-Juan, J.; Evangelisti, M.; Gaita-Arino, A.; Sese, J.; Van Slageren, J.; Coronado, E.; Luis, F. (American Physical Society, 2012)
    We report ac susceptibility and continuous wave and pulsed EPR experiments performed on GdW10 and GdW30 polyoxometalate clusters, in which a Gd3+ ion is coordinated to different polyoxometalate moieties. Despite the isotropic ...

  • Gamma-ray spectroscopy with relativistic exotic heavy-ions 

    Mandal, Samit; Gerl, J.; Geissel, H.; Hauschild, K.; Hellstrom, M.; Janas, Z.; Kojouharov, I.; Kopatch, Y.; Lemmon, R. C.; Mayet, P.; Podolyak, Z.; Regan, P. H.; Schaffner, H.; Schlegel, C.; Simpson, J.; Wollersheim, H. J. (Indian Academy of Sciences, 2001)
    Feasibility of gamma-ray spectroscopy at relativistic energies with exotic heavy-ions and new generation of germanium detectors (segmented Clover) is discussed. An experiment with such detector array and radioactive is discussed.

  • Angular momentum population in the fragmentation of Pb-208 at 1 GeV/nucleon 

    Pfutzner, M.; Regan, PH; Walker, PM; Caamano, M.; Gerl, J.; Hellstrom, M.; Mayet, P.; Schmidt, KH; Podolyak, Z.; Mineva, MN; Aprahamian, A.; Benlliure, J.; Bruce, AM; Butler, PA; Gil, DC; Cullen, DM; Doring, J.; Enquist, T.; Fox, C.; Garces Narro, J.; Geissel, H.; Gelletly, W.; Giovinazzo, J.; Gorska, M.; Grawe, H.; Grzywacz, R.; Kleinbohl, A.; Korten, W.; Lewitowicz, M.; Lucas, R.; Mach, H.; O'Leary, CD; De Oliveira, F.; Pearson, CJ; Rejmund, F.; Rejmund, M.; Sawicka, M.; Schaffner, H.; Schlegel, C.; Schmidt, K.; Theisen, C.; Vives, F.; Warner, DD; Wheldon, C.; Wollersheim, HJ; Wooding, S. (2002-06)
    No abstract available.

  • Direct observation of quantum coherence in single-molecule magnets 

    Schlegel, C.; Van Slageren, J.; Manoli, M.; Brechin, E. K.; Dressel, M. (American Physical Society, 2008)
    Direct evidence of quantum coherence in a single-molecule magnet in a frozen solution is reported with coherence times as long as T2=63030ns. We can strongly increase the coherence time by modifying the matrix in which the ...

  • Carlos-Louis Sandblom 

    Sandblom, Carlos-Louis (2014-03-21)

  • Control of cardiac function and noise from a decaying power spectrum 

    Kember, G. C.; Armour, J. A.; Fenton, G. A.; Malhotra, A. (American Physical Society, 2004)
    The transduction capability of cardiac affected neurons situated to the heart to control cardiac function was described. It was observed that the through in situ cardiac afferent activity shows evidence of independent and ...

  • Mechanism of smart baroreception in the aortic arch 

    Kember, G. C.; Armour, J. A.; Zamir, M. (American Physical Society, 2006)
    A mechanism is proposed by which the patch of baroreceptors along the inner curvature of the arch of the aorta can sense hemodynamic events occurring downstream from the aortic arch, in the periphery of the arterial tree. ...

  • Competition model for aperiodic stochastic resonance in a Fitzhugh-Nagumo model of cardiac sensory neurons 

    Kember, G. C.; Fenton, G. A.; Armour, J. A.; Kalyaniwalla, N. (American Institute of Physics Inc, 2001)
    A model is presented to access the cause and effect between noisy threshold inputs and the average firing rate generated by neuron. The neural control in the heart in aperiodic stochastic resonance (ASR) was partially ...

  • "Smart" baroreception along the aortic arch, with reference to essential hypertension 

    Kember, G. C.; Zamir, M.; Armour, J. A. (American Physical Society, 2004)
    An arterial model was used to show that the cumulative effects of wave reflections have a surprisingly pronounced effect on the pressure distribution in the root segment of the tree. Global arterial conditions play a role ...

  • The Lorenz-Krishnamurthy slow manifold 

    Fowler, A. C.; Kember, G. (1996-05/15)
    The authors scale the five-mode model introduced by Lorenz and Krishnamurthy and show how explicit solutions may be obtained in the limit of small Rossby number by using the method of multiple scales. They thus obtain a ...

  • Characterizing Porosity and Diffusive Properties of Monolithic Cement-Based Solidified/Stabilized Materials 

    Goreham, V.; Lake, C. B.; Yuet, P. K. (2012-07)
    This paper presents the application of a single reservoir diffusion test to determine both the effective porosity of a soil-cement matrix and the diffusivity of tritium through saturated, monolithic, cement solidified/stabilized ...

  • A Hybrid Perturbation and Morris Approach for Identifying Sensitive Parameters in Surface Water Quality Models 

    Huang, Y. T.; Liu, L. (2008-12)
    Surface water quality models (SWQM) are always developed as universal frameworks so that they can be flexibly employed to simulate a large variety of water bodies. These models are often over-parameterized (more parameters ...

  • A Coupled MM5-CMAQ Modeling System for Assessing Effects of Restriction Measures on PM10 Pollution in Olympic City of Beijing, China 

    Zhou, Y.; Cheng, S. Y.; Liu, L.; Chen, D. S. (2012-06)
    In this paper, a coupled MM5-CMAQ modeling system was employed to investigate the PM10 pollution issue in Beijing, China, with a focus on assessing the effects of different restriction policies implemented during and after ...

  • Assessing the Effects of Land Use Changes on Non-Point Source Pollution Reduction for the Three Gorges Watershed Using the SWAT Model 

    Chen, Y.; Cheng, S. Y.; Liu, L.; Guo, X. R.; Wang, Z.; Qin, C. H.; Hao, R. X.; Lu, J.; Gao, J. J. (2013-09)
    This study presents a new attempt of applying the hydrological model SWAT to the Three Gorges watershed in China for addressing its non-point source (NPS) pollution control issues. The model was calibrated and validated ...

  • Seismic and aseismic slip pulses driven by thermal pressurization of pore fluid 

    Garagash, D. I. (2012-04)
    There are several lines of evidence that suggest that thermal pressurization (TP) of pore fluid within a low-permeability fault core may play the key role in the development of earthquake slip. To elucidate effects of TP ...

  • Nucleation and arrest of dynamic slip on a pressurized fault 

    Garagash, Dmitry I.; Germanovich, Leonid N. (2012-10)
    Elevated pore pressure can lead to reactivation of slip on pre-existing fractures and faults when the static Coulomb failure is reached locally. As the pressurized region spreads diffusively, slip can accumulate quasi-statically ...

  • Exploring the sensitivity of quantitative fatty acid signature analysis to assumption violations (Supplementary data) 

    Bromaghin, Jeffrey F.; Budge, Suzanne M.; Thiemann, Gregory W.; Rode, Karyn D. (2015)

  • Hydraulic and strength performance of three cement-stabilized soils subjected to cycles of freezing and thawing 

    Jamshidi, Reza; Lake, Craig (NRC Research Press, 2015-03)
    A total of 108 specimens were prepared to examine the hydraulic performance and strength performance of nine different cement-stabilized soils under unexposed and freeze–thaw exposed conditions. Specimens from each mix ...