41–60 von 4,524 Ergebnissen
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    Teamwork, downhole technology expedites tierra del fuego operations. Extended-reach drilling - conclusion

    Vighetto, R. / Naegel, M. / Pradie, E. | Tema Archiv | 1999
    (continued from 97(99)20, page 51) Building on the success of 10 extended-reach wells in Tierra del Fuego, Argentina, a multidisciplinary ...

    NASA/Army/Bell XV-15 tiltrotor low noise terminal area operations flight research program

    Conner, D.A. / Edwards, B.D. / Decker, W.A. et al. | Tema Archiv | 2002
    noise reduction potential for tilt-rotor aircraft during terminal area operations. Lower hemispherical noise characteristics for a wide range of ...

    An experimental investigation on performance, emissions, and combustion in a manifold injection for different exhaust gas recirculation flowrates in hydrogen-diesel dual-fuel operations

    Saravanan, N. / Nagarajan, G. | Tema Archiv | 2008
    cylinder. The injection timing and the injection duration of hydrogen were optimized on the basis of performance and emissions. Best results were ...

    Roll-out of hydrogen fueling stations in Spain through a procedure based on data envelopment analysis

    Brey, J.J. / Brey, R. / Contreras, I. et al. | Tema Archiv | 2014
    commercialization requires efficient roll-out of hydrogen fueling stations, with prior identification of the areas most suitable for their establishment ...
    Schlagwörter: Operations Research

    Analysis of a hydrogen station roll-out strategy to introduce hydrogen vehicles in Andalusia

    Brey, J.J. / Carazo, A.F. / Brey, R. | Tema Archiv | 2014
    The issue of the distribution of a sufficient infrastructure of hydrogen fueling stations to enable meeting of the initial demand and to ...
    Schlagwörter: Operations Research

    Ignited releases of liquid hydrogen: Safety considerations of thermal and overpressure effects

    Hall, J.E. / Hooker, P. / Willoughby, D. | Tema Archiv | 2014
    number of tanker offloading operations significantly and these may need to be performed in close proximity to the general public. The aim of this ...

    Assessment of mono and multi-objective optimization to design a hydrogen supply chain

    De-Leon Almaraz, Sofia / Azzaro-Pantel, Catherine / Montastruc, Ludovic et al. | Tema Archiv | 2013
    This work considers the potential future use of hydrogen in fuel cell electrical vehicles to face problems such as global warming, air ...
    Schlagwörter: Operations Research

    Assessment of lifetime of railway axle

    Yasniy, O. / Lapusta, Y. / Pyndus, Y. et al. | Tema Archiv | 2013
    Main laws of influence of stress ratio on fatigue crack growth rate in the material of railway axles were revealed and statistical ...

    Using eye movement activity as a correlate of cognitive workload

    Ahlstrom, Ulf / Friedman-Berg, Ferne J. | Tema Archiv | 2006
    In the present study, we investigated the effect on air traffic controller operations and workload from the use of weather displays ...

    Numerical Calculation of Effect of Elastic Deformation on Aerodynamic Characteristics of a Rocket

    Abbas, Laith K. / Chen, Dongyang / Rui, Xiaoting et al. | Tema Archiv | 2014
    The application and workflow of Computational Fluid Dynamics (CFD)/Computational Structure Dynamics (CSD) on solving the static aeroelastic ...

    The start-up analysis of a PEM fuel cell system in vehicles

    Rabbani, Abid / Rokni, Masoud / Hosseinzadeh, Elham et al. | Tema Archiv | 2014
    conducted here. Operations of a comprehensive system-level control-oriented fuel cell model with all necessary auxiliary components are demonstrated ...

    Thermal models of railroad wheels and bearings

    Cole, K.D. / Tarawneh, C.M. / Fuentes, A.A. et al. | Tema Archiv | 2010
    The rolling surface for railroad wheels can be a heat source that may have an impact on the performance of the wheel bearing. In this study ...

    Fatigue reliability assessment of riveted lap joint of aircraft structures

    Huang, Wei / Wang, Tie-Jun / Garbatov, Y. et al. | Tema Archiv | 2012
    The objective of this paper is to analyse the fatigue reliability of rivet lap joints of aircraft structures based on a fast reliability ...

    Deformation analysis of large aerospace components during assembly

    Saadat, Mozafar / Cretin, Lylian / Sim, Roy et al. | Tema Archiv | 2009
    predict overall deformation between the alignment of the rib foot and the skin panel. The assembly operations and conditions encountered on the ...

    Metrology-assisted robotic processing of aerospace applications

    Jayaweera, Nirosh / Webb, Phil | Tema Archiv | 2010
    assisted by cranes or lifting devices. The use of manual operations represents a significant health and safety risk and increased likelihood of ...

    The effects of surge motion of the floating platform on hydrodynamics performance of horizontal-axis tidal current turbine

    Zhang, Liang / Wang, Shu-qi / Sheng, Qi-Hu et al. | Tema Archiv | 2015
    Under practical operation conditions, hydrodynamic characteristics of floating horizontal-axis turbine are affected by the wave-induced ...

    Determination of the fracture behaviour of axial splitting tubes and the numerical prediction of their energy absorption capabilities

    Moreno, C. / Beaumont, R. / Hughes, D.J. et al. | Tema Archiv | 2015
    Axial splitting of tubes has been used as an energy absorption mechanism since the 1980s. The simulation of the fracture behaviour of ...

    Numerical evaluation of a dual-function microporous layer under subzero and normal operating temperatures for use in automotive fuel cells

    Ko, Johan / Ju, Hyunchul | Tema Archiv | 2014
    volume for ice storage during cold-start PEFC operations. Although the benefit of using a dual-function MPL was numerically elucidated in our ...

    Potential of lithium-ion batteries in renewable energy

    Diouf, Boucar / Pode, Ramchandra | Tema Archiv | 2015
    The potential of lithium ion (Li-ion) batteries to be the major energy storage in off-grid renewable energy is presented. Longer lifespan ...

    The effect of surface waves on the performance characteristics of a model tidal turbine

    Luznik, Luksa / Flack, Karen A. / Lust, Ethan E. et al. | Tema Archiv | 2013
    . Intermediate waves were modeled that are representative of swells typically found on the continental shelf of the United States eastern seaboard. The ...