title: Graph-RAT programming environment

authors: McEnnis, Daniel

subjects: computer science

abstract: Graph-RAT is a new programming environment specializing in relational data mining. It incorporates a number of different techniques into a single framework for data collection, data cleaning, propositionalization, and analysis. The language is functional where algorithms are executed over arbitrary sub-graphs of the data. Analytical results can be conducted using collaborative filtering or machine learning techniques. The example algorithms are under BSD license.

text: Graph-RAT programming environment Graph-RAT is a new programming environment specializing in relational data mining. It incorporates a number of different techniques into a single framework for data collection, data cleaning, propositionalization, and analysis. The language is functional where algorithms are executed over arbitrary sub-graphs of the data. Analytical results can be conducted using collaborative filtering or machine learning techniques. The example algorithms are under BSD license.

year: 2009-08-12

title: New ternary powder metallurgy Ti alloys via eutectoid and isomorphous beta stabilisers additions

authors: Paul, Manpreet

subjects: Mechanical engineering

abstract: A group of new ternary Ti alloys bearing eutectoid and isomorphous beta stabilising elements was created to be manufactured through the conventional powder metallurgy route. The effect of the simultaneous addition of the same amount of Mn and Nb on the manufacturability, properties, and hardening behaviour was investigated. The ternary alloys are composed of the α-Ti and β-Ti phases and have a lamellar microstructure resulting from the slow cooling upon sintering. However, the size of the equiaxed α grains and of the α + β lamellae is monotonically reduced, especially the interlamellar spacing, as the amount of alloying elements increases. Due to their physical properties, Mn enhances and Nb hinders densification during sintering resulting in a decreasing trend of the relative density with the alloying elements content. Consequently, the resistance to plastic deformation increases (UTS, 514–726 MPa), the ductility decreases (elongation, 13.2–2.6%), and the fracture mode changes from intergranular to transgranular. The new ternary alloys share the same hardening mechanism, but the amount of deformation after necking is, generally, higher for lower amounts of Mn and Nb.

text: New ternary powder metallurgy Ti alloys via eutectoid and isomorphous beta stabilisers additions A group of new ternary Ti alloys bearing eutectoid and isomorphous beta stabilising elements was created to be manufactured through the conventional powder metallurgy route. The effect of the simultaneous addition of the same amount of Mn and Nb on the manufacturability, properties, and hardening behaviour was investigated. The ternary alloys are composed of the α-Ti and β-Ti phases and have a lamellar microstructure resulting from the slow cooling upon sintering. However, the size of the equiaxed α grains and of the α + β lamellae is monotonically reduced, especially the interlamellar spacing, as the amount of alloying elements increases. Due to their physical properties, Mn enhances and Nb hinders densification during sintering resulting in a decreasing trend of the relative density with the alloying elements content. Consequently, the resistance to plastic deformation increases (UTS, 514–726 MPa), the ductility decreases (elongation, 13.2–2.6%), and the fracture mode changes from intergranular to transgranular. The new ternary alloys share the same hardening mechanism, but the amount of deformation after necking is, generally, higher for lower amounts of Mn and Nb.

year: 2023-01-20

title: E hoki ki to maunga: The quintessential elements of home

authors: Emery, Debra Joy Tepora

subjects: hau kainga

abstract: He kopu puta tahi, he taura whiri tātou;
whiringa a nuku, whiringa a rangi, te whatia e
Issue of one womb, we are a rope woven of many strands; woven on earth, woven in heaven, it will not break (Rev Māori Marsden, 1992)
Ngati Te Takinga is a hapū (sub-tribe) belonging to the Iwi (tribe) Ngati Pikiao. An affiliated member of the Te Arawa confederation of tribes, Ngati Pikiao occupies the Okere and Rotoiti Lakes district of Rotorua in the central North Island of Aotearoa New Zealand.
This thesis seeks to acknowledge and address the concerns that Ngati Te Takinga has regarding impending cultural discontinuity. The concerns arise due to the hapū's limited human capability and capacity being the result of three things. Firstly, the ongoing demise of tribal elders (and leaders) and the subsequent loss to the hapū of cultural knowledge, skills, leadership and expertise. Secondly, the low numbers of adept,
culturally proficient successors 'coming through' (to replace the elders) and finally, the detribalised and diasporic (dispersed) nature of our people. The hapū and the marae Te Takinga (a last outwardly discernible bastion of Ngati Te Takinga cultural identity and distinction) are jeopardised as a result of these phenomenon.
This thesis is part of a hapū strategy that attempts to address these problems. Positing the
reconnection of our dispersed Ngati Te Takinga 'away-dwellers' as a beginning
solution, the central questions raised by this thesis are  how [does] Ngati Te Takinga
'home-dweller' discourse impact on the 'coming home' experiences and 'reconnection'
of Ngati Te Takinga away-dwellers?  and  what are the [are there] implications for Ngati
Te Takinga cultural continuity? 
The maintenance of Ngati Te Takinga cultural continuity forms the aho mātua or main thread of this work. Using narrative enquiry as a broad methodological framework,stories were gathered from four different groups of Ngati Te Takinga peoples. The groups were home-dwellers (mana whenua or ahi kaa), te ahi tere (away-dwellers who
have returned home to live); te ahi tere (away-dwellers who intend returning in the future) and te ahi tere (away-dwellers who have no intention of returning home to live). The stories (narratives) investigated notions of home, belongingness and Māori identity in relation to the trichotomy of the connection, disconnection and the reconnection of Ngati Te Takinga peoples; the stories were analysed and co-constructed with participants for meaning.
The stories showed that while the hapū aspires to gather up the strengths of a dispersed people to reinvigorate our culture and the marae, existing and competing discourses around authenticity, authority and Ngati Te Takinga identity create a tension between the home (mana whenua/ahi kaa) and away-dwelling Ngati Te Takinga people; including those away-dwellers who have returned. As a basic requirement, this tension must be
diminished in order to build the relationships necessary to improve hapū allegiance
(whānaungatanga), to build hapū strength and to maintain hapū culture and identity. As a priority, decolonising strategies that facilitate an understanding of diversity, promote
participation, maintain tikanga and include our away-dwellers, our 'returnees' and/or our
disconnected people in our hapū-marae interactions, must be considered, developed,
promoted and practiced.

text: E hoki ki to maunga: The quintessential elements of home He kopu puta tahi, he taura whiri tātou;
whiringa a nuku, whiringa a rangi, te whatia e
Issue of one womb, we are a rope woven of many strands; woven on earth, woven in heaven, it will not break (Rev Māori Marsden, 1992)
Ngati Te Takinga is a hapū (sub-tribe) belonging to the Iwi (tribe) Ngati Pikiao. An affiliated member of the Te Arawa confederation of tribes, Ngati Pikiao occupies the Okere and Rotoiti Lakes district of Rotorua in the central North Island of Aotearoa New Zealand.
This thesis seeks to acknowledge and address the concerns that Ngati Te Takinga has regarding impending cultural discontinuity. The concerns arise due to the hapū's limited human capability and capacity being the result of three things. Firstly, the ongoing demise of tribal elders (and leaders) and the subsequent loss to the hapū of cultural knowledge, skills, leadership and expertise. Secondly, the low numbers of adept,
culturally proficient successors 'coming through' (to replace the elders) and finally, the detribalised and diasporic (dispersed) nature of our people. The hapū and the marae Te Takinga (a last outwardly discernible bastion of Ngati Te Takinga cultural identity and distinction) are jeopardised as a result of these phenomenon.
This thesis is part of a hapū strategy that attempts to address these problems. Positing the
reconnection of our dispersed Ngati Te Takinga 'away-dwellers' as a beginning
solution, the central questions raised by this thesis are  how [does] Ngati Te Takinga
'home-dweller' discourse impact on the 'coming home' experiences and 'reconnection'
of Ngati Te Takinga away-dwellers?  and  what are the [are there] implications for Ngati
Te Takinga cultural continuity? 
The maintenance of Ngati Te Takinga cultural continuity forms the aho mātua or main thread of this work. Using narrative enquiry as a broad methodological framework,stories were gathered from four different groups of Ngati Te Takinga peoples. The groups were home-dwellers (mana whenua or ahi kaa), te ahi tere (away-dwellers who
have returned home to live); te ahi tere (away-dwellers who intend returning in the future) and te ahi tere (away-dwellers who have no intention of returning home to live). The stories (narratives) investigated notions of home, belongingness and Māori identity in relation to the trichotomy of the connection, disconnection and the reconnection of Ngati Te Takinga peoples; the stories were analysed and co-constructed with participants for meaning.
The stories showed that while the hapū aspires to gather up the strengths of a dispersed people to reinvigorate our culture and the marae, existing and competing discourses around authenticity, authority and Ngati Te Takinga identity create a tension between the home (mana whenua/ahi kaa) and away-dwelling Ngati Te Takinga people; including those away-dwellers who have returned. As a basic requirement, this tension must be
diminished in order to build the relationships necessary to improve hapū allegiance
(whānaungatanga), to build hapū strength and to maintain hapū culture and identity. As a priority, decolonising strategies that facilitate an understanding of diversity, promote
participation, maintain tikanga and include our away-dwellers, our 'returnees' and/or our
disconnected people in our hapū-marae interactions, must be considered, developed,
promoted and practiced.

year: 2008