title: Thesaurus based automatic keyphrase indexing

authors: Medelyan, Olena

subjects: computer science

abstract: We propose a new method that enhances automatic keyphrase extraction by using semantic information on terms and phrases gleaned from a domain-specific thesaurus. We evaluate the results against keyphrase sets assigned by a state-of-the-art keyphrase extraction system and those assigned by six professional indexers.

text: Thesaurus based automatic keyphrase indexing We propose a new method that enhances automatic keyphrase extraction by using semantic information on terms and phrases gleaned from a domain-specific thesaurus. We evaluate the results against keyphrase sets assigned by a state-of-the-art keyphrase extraction system and those assigned by six professional indexers.

year: 2006

title: Heterogeneous Nb-Based Nuclei for the Grain Refinement of Al-Si Alloys

authors: Bolzoni, Leandro

abstract: Nb-based intermetallics are, generally, low-density high-temperature materials used for structural applications or cryogenic superconductors. In this work, we report the development of an Al(96)-Nb(2)-B(2) master alloy where in situ-formed micrometric Nb-based intermetallics (i.e. NbB2 and Al3Nb) are used for a completely different purpose: to promote the refinement of Al-Si alloys by taking advantage of enhanced heterogeneous nucleation. Nb-based intermetallics have the right characteristics, like low density, stability at high temperature and good lattice match, to be used as heterogeneous nucleation substrates. It was found that the addition of these Nb-based intermetallics permits the significant refinement of the microstructural features of the Al-Si alloy studied. The enhanced heterogeneous nucleation makes the grain size of the material far less dependent on the cooling rate, which is one of the critical parameters influencing the variation of the properties of the alloy.

text: Heterogeneous Nb-Based Nuclei for the Grain Refinement of Al-Si Alloys Nb-based intermetallics are, generally, low-density high-temperature materials used for structural applications or cryogenic superconductors. In this work, we report the development of an Al(96)-Nb(2)-B(2) master alloy where in situ-formed micrometric Nb-based intermetallics (i.e. NbB2 and Al3Nb) are used for a completely different purpose: to promote the refinement of Al-Si alloys by taking advantage of enhanced heterogeneous nucleation. Nb-based intermetallics have the right characteristics, like low density, stability at high temperature and good lattice match, to be used as heterogeneous nucleation substrates. It was found that the addition of these Nb-based intermetallics permits the significant refinement of the microstructural features of the Al-Si alloy studied. The enhanced heterogeneous nucleation makes the grain size of the material far less dependent on the cooling rate, which is one of the critical parameters influencing the variation of the properties of the alloy.

year: 2016

title: Experiencing cultural tourism: Visitors at the Maori Arts and Crafts Institute, New Zealand

authors: Ryan, Chris

subjects: indigenous tourism

abstract: This study reports results derived from semistructured interviews with 40 visitors to the Maori Arts and Crafts Institute in Rotorua, New Zealand. The article discusses briefly the mode of data capture used and adopts an approach of identifying classifications of a primarily functional nature to list reasons why people visit such a site and what it is they seek. In general, visitors reported high levels of satisfaction, yet the cultural component of their experience was primarily reported in terms of the visit being informative and entertaining. Additionally, whereas modest levels of interest in things Maori seemed to motivate visits to other Maori sites, the actual list of other locations being nominated was few in number. The impression results that visits are made to Maori sites because this is a "done thing" when visiting New Zealand, but overall, the level of interest shown by most visitors in indigenous culture is modest.

text: Experiencing cultural tourism: Visitors at the Maori Arts and Crafts Institute, New Zealand This study reports results derived from semistructured interviews with 40 visitors to the Maori Arts and Crafts Institute in Rotorua, New Zealand. The article discusses briefly the mode of data capture used and adopts an approach of identifying classifications of a primarily functional nature to list reasons why people visit such a site and what it is they seek. In general, visitors reported high levels of satisfaction, yet the cultural component of their experience was primarily reported in terms of the visit being informative and entertaining. Additionally, whereas modest levels of interest in things Maori seemed to motivate visits to other Maori sites, the actual list of other locations being nominated was few in number. The impression results that visits are made to Maori sites because this is a "done thing" when visiting New Zealand, but overall, the level of interest shown by most visitors in indigenous culture is modest.

year: 2006