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Repository of the Faculty of Technology of University of Lincoln.

Subject = J Technologies: J990 Technologies not elsewhere classified

Mostrando recursos 1 - 8 de 8

  1. The community reclaims control? Learning experiences from rural broadband initiatives in the Netherlands

    Salemink, Koen; Strijker, Dirk; Bosworth, Gary
    Based on four illustrative case studies from the Netherlands, this article discusses learning experiences gained from rural broadband initiatives. As an example of ‘the big society’ (or ‘participatiesamenleving’ in Dutch), initiatives try to step in where the market and the government fail. The main struggle seems to be negotiating between market and government interests, while simultaneously safeguarding local interests. Many challenges and frustrations arise from counter-tactics on the part of national market players, and governmentality-inspired actions of regional and local authorities. Local capacity – such as social, intellectual, and financial capital – proves to be crucial in negotiating external influences,...

  2. The community reclaims control? Learning experiences from rural broadband initiatives in the Netherlands

    Salemink, Koen; Strijker, Dirk; Bosworth, Gary
    Based on four illustrative case studies from the Netherlands, this article discusses learning experiences gained from rural broadband initiatives. As an example of ‘the big society’ (or ‘participatiesamenleving’ in Dutch), initiatives try to step in where the market and the government fail. The main struggle seems to be negotiating between market and government interests, while simultaneously safeguarding local interests. Many challenges and frustrations arise from counter-tactics on the part of national market players, and governmentality-inspired actions of regional and local authorities. Local capacity – such as social, intellectual, and financial capital – proves to be crucial in negotiating external influences,...

  3. Impact of fractional order methods on optimized tilt control for rail vehicles

    Hassan, Fazilah; Zolotas, Argyrios
    Advances in the use of fractional order calculus in control theory in- creasingly make their way into control applications such as in the process industry, electrical machines, mechatronics/robotics, albeit at a slower rate into control applications in automotive and railway systems. We present work on advances in high-speed rail vehicle tilt control design enabled by use of fractional order methods. Analytical problems in rail tilt control still exist especially on simplified tilt using non-precedent sensor information (rather than use of the more complex precedence (or preview) schemes). Challenges arise due to suspension dynamic interactions (due to strong coupling between roll and lateral dynamic modes) and the sensor measure- ment. We...

  4. Impact of fractional order methods on optimized tilt control for rail vehicles

    Hassan, Fazilah; Zolotas, Argyrios
    Advances in the use of fractional order calculus in control theory in- creasingly make their way into control applications such as in the process industry, electrical machines, mechatronics/robotics, albeit at a slower rate into control applications in automotive and railway systems. We present work on advances in high-speed rail vehicle tilt control design enabled by use of fractional order methods. Analytical problems in rail tilt control still exist especially on simplified tilt using non-precedent sensor information (rather than use of the more complex precedence (or preview) schemes). Challenges arise due to suspension dynamic interactions (due to strong coupling between roll and lateral dynamic modes) and the sensor measure- ment. We...

  5. Architectural ghosts and their senses

    Kolakowski, Marcin Mateusz
    The article deals with architecture as a catalyst for sensual experience. It refers to two architectural theories which clashed throughout the 20th century – minimalism, which started with Adolf Loos and Mies van Der Rohe, and the idea of architecture as a trigger of all sensual experience. Is this only a matter of taste or could this aspect of architecture be analysed in a more objective way? Examples of Peter Zumthor’s buildings give evidence that designing for all senses should be part of architectural curriculum.

  6. Unbearable lightness of dematerialization

    Kolakowski, Marcin Mateusz
    This article serves as an overview of arguments in architectural theories which present an ideological tension: dematerialisation and lightness versus materialisation and heaviness. Daedalus - the designer of Icarus’ wings is considered to be the first mythical architect. What would happen if he and his son did not end up with the epic disaster of Icarus drowning in the Ionic Sea? What would happen if Icarus and Daedalus survived until today? What would happen if they were exposed to modern architectural education? This article takes the form of a Socratic Dialog and adds new pages to this Greek myth. Today...

  7. Using metallic noncontact atomic force microscope tips for imaging insulators and polar molecules: tip characterization and imaging mechanisms

    Gao, David Zhe; Grenz, Josef; Watkins, Matthew; Canova, Filippo Federici; Schwarz, Alexander; Wiesendanger, Roland; Shluger, Alexander L.
    We demonstrate that using metallic tips for noncontact atomic force microscopy (NC-AFM) imaging at relatively large (>0.5 nm) tip-surface separations provides a reliable method for studying molecules on insulating surfaces with chemical resolution and greatly reduces the complexity of interpreting experimental data. The experimental NC-AFM imaging and theoretical simulations were carried out for the NiO(001) surface as well as adsorbed CO and Co-Salen molecules using Cr-coated Si tips. The experimental results and density functional theory calculations confirm that metallic tips possess a permanent electric dipole moment with its positive end oriented toward the sample. By analyzing the experimental data, we...

  8. Using metallic noncontact atomic force microscope tips for imaging insulators and polar molecules: tip characterization and imaging mechanisms

    Gao, David Zhe; Grenz, Josef; Watkins, Matthew; Canova, Filippo Federici; Schwarz, Alexander; Wiesendanger, Roland; Shluger, Alexander L.
    We demonstrate that using metallic tips for noncontact atomic force microscopy (NC-AFM) imaging at relatively large (>0.5 nm) tip-surface separations provides a reliable method for studying molecules on insulating surfaces with chemical resolution and greatly reduces the complexity of interpreting experimental data. The experimental NC-AFM imaging and theoretical simulations were carried out for the NiO(001) surface as well as adsorbed CO and Co-Salen molecules using Cr-coated Si tips. The experimental results and density functional theory calculations confirm that metallic tips possess a permanent electric dipole moment with its positive end oriented toward the sample. By analyzing the experimental data, we...

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