20,885 research outputs found

    Bulletin /

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    v. 37:1-2 (1966

    Bulletin of the British Museum (Natural History).

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    v.18:no.4 (1988:Oct.

    Nebraska Natural Resources District Boundaries

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    Field Museum news.

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    v. 5 (1934

    Nebraska Natural Resources District Boundaries

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    Field Museum news.

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    v. 2 (1931

    Playing with Derivation Modes and Halting Conditions

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    In the area of P systems, besides the standard maximally parallel derivation mode, many other derivation modes have been investigated, too. In this paper, many variants of hierarchical P systems and tissue P systems using different derivation modes are considered and the effects of using di erent derivation modes, especially the maximally parallel derivation modes and the maximally parallel set derivation modes, on the generative and accepting power are illustrated. Moreover, an overview on some control mechanisms used for (tissue) P systems is given. Furthermore, besides the standard total halting mode, we also consider different halting conditions such as unconditional halting and partial halting and explain how the use of different halting modes may considerably change the computing power of P systems and tissue P systems

    The DBSCAN Clustering Algorithm on P Systems

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    We show how to implement the DBSCAN clustering algorithm (Density Based Spatial Clustering of Applications with Noise) on membrane systems using evolution rules with promoters and priorities

    Town of Hampton Stormwater Management PREP Natural Resources Outreach Coalition Grant Final Project Report

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    PREP provided $3,500 towards the project which was matched by municipal funds to pay for consulting advice on improving the regulations. The Planning Board provided exceptional in-kind match on the project, with many hours of work spent by a volunteer engineer serving on the Board. On February 12th 2009, Hampton’s Innovative Land Use Team, in coordination with NROC, hosted a community workshop on stormwater issues that was well attended by municipal officials, town staff, and members of the public. After many revisions, the Planning Board formally adopted the approved stormwater management provisions into the town site plan and subdivision regulations at their July 2009 meeting
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