49 research outputs found

    Pleistocene geology and ground water of Kansas River Valley between Manhattan and Junction City, Kansas

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    Maps in pocket bound with piece

    Synthesis and in vitro protozoocidal activity of diazabicyclic benzotropolone derivatives.

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    We describe the synthesis and protozoocidal evaluation of a series of diazabicycles based on benzotropolone ethers. Several of the compounds, which can be obtained through a high-yielding hetero Diels-Alder reaction using simple and readily available starting materials, have in vitro activities against Trypanosoma cruzi and Leishmania donovani that are comparable to, and in some cases better than, those of currently used chemotherapies

    Wind/hydrogen hybrid systems: opportunity for Ireland’s wind resource to provide consistent sustainable energy supply

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    Ireland with its resource of wind has the potential to use this natural resource and sustain the country’s power needs for the future. However, one of the biggest drawbacks to renewable energy generation, particularly wind generated electricity is that it is an intermittent and a variable source of power. Even at the "best" sites wind varies dramatically from hour to hour and minute to minute. This leads to two main problems: 1) When the wind drops below a lower limit or goes above a higher limit the turbine can shut down and electricity is not produced. 2) Energy is not stored when there is an excess of electricity generated on site. Because of these problems wind power has a very low capacity credit and backup power is needed to handle the large fluctuation of production. This paper introduces the energy system of Ireland and the targets that Irish operators are to achieve in the next decade. A review of energy storage options for Ireland is outlined including the use of hydrogen and fuel cell technology. It is concluded that a project similar to the Norwegian Utsira wind / hydrogen project could be piloted in Ireland and a site similar to Dundalk Institute of Technology could be used to demonstrate and test the system. Going forward to achieve high levels of renewable energy generation, similar distributed wind / hydrogen hybrid systems could reduce the need for curtailment of wind farms, save wasted energy, reduce backup power, reduce transmission losses, generate large revenue by selling power at peak times, ensure security of supply and reduce the need for costly interconnects to Europe

    Ports and patches: Digital games as unstable objects

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    Rethinking Collections

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    Archiving digital narrative: Some issues

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    The complexities of archiving digital content, particularly those story forms reliant on multiple platforms, highlights technical, cultural and curatorial issues that remain difficult to reconcile coherently. Seeking to frame the issues within this special Debates section, this essay outlines issues facing the field of digital storytelling; examining narrative form, instantiation and subsequent archival. © 2012 The Author(s)
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