title: Removal of the water soluble binder components from titanium and titanium alloy powder compacts produced by MIM

authors: Ewart, Paul

subjects: Debinding

abstract: This work investigates the debinding process of powder compacts formed by metal injection moulding (MIM) of feedstocks comprised of HDH Ti or HDH Ti-6Al-4V powder mixed with a binder of a predetermined ratio of water soluble polyethylene and wax. The full debinding process has three stages: a solvent debinding process to leach the water soluble component, a drying phase allowing the removal rate to be measured and a thermal treatment step for removing the wax components, leaving the backbone components to retain part geometry prior to sintering. Leaching of the water soluble component was monitored and the results were consistent with the general correlation which predicts that binder removal time increases by a factor of 4 when the section thickness is doubled. Uniformity of binder removal, defect formation and particle surface degradation in Ti MIM parts are also discussed.

text: Removal of the water soluble binder components from titanium and titanium alloy powder compacts produced by MIM This work investigates the debinding process of powder compacts formed by metal injection moulding (MIM) of feedstocks comprised of HDH Ti or HDH Ti-6Al-4V powder mixed with a binder of a predetermined ratio of water soluble polyethylene and wax. The full debinding process has three stages: a solvent debinding process to leach the water soluble component, a drying phase allowing the removal rate to be measured and a thermal treatment step for removing the wax components, leaving the backbone components to retain part geometry prior to sintering. Leaching of the water soluble component was monitored and the results were consistent with the general correlation which predicts that binder removal time increases by a factor of 4 when the section thickness is doubled. Uniformity of binder removal, defect formation and particle surface degradation in Ti MIM parts are also discussed.

year: 2012

title: Value-creating assets in tourism management: Applying marketing's service-dominant logic in the hotel industry

authors: FitzPatrick, Mary

subjects: hotel management

abstract: Value-creating assets are recognised as critical in today's tourism management field. However, empirical research to date has not yet developed a useful conceptual framework for managing and marketing such assets. This paper presents service-dominant logic (S-D Logic) as a framework for advancing our understanding of intangible assets within the hotel industry. The research used S-D Logic to analyse intellectual capital (IC) disclosures of 20 publicly-listed European and US hotels. Results showed hotels acknowledge IC assets; in particular, the value embedded in their brands. However, the hotel companies' disclosures on generic items of Guest and Employees indicate they are overlooking the capacity for value-creation from such IC. This research, which makes a unique contribution by applying S-D Logic to examine hotel IC disclosures, recommends developing more sophisticated constructs for effective management of hotels' intangible assets. Finally, the S-D Logic framework has potential application in other areas of tourism management.

text: Value-creating assets in tourism management: Applying marketing's service-dominant logic in the hotel industry Value-creating assets are recognised as critical in today's tourism management field. However, empirical research to date has not yet developed a useful conceptual framework for managing and marketing such assets. This paper presents service-dominant logic (S-D Logic) as a framework for advancing our understanding of intangible assets within the hotel industry. The research used S-D Logic to analyse intellectual capital (IC) disclosures of 20 publicly-listed European and US hotels. Results showed hotels acknowledge IC assets; in particular, the value embedded in their brands. However, the hotel companies' disclosures on generic items of Guest and Employees indicate they are overlooking the capacity for value-creation from such IC. This research, which makes a unique contribution by applying S-D Logic to examine hotel IC disclosures, recommends developing more sophisticated constructs for effective management of hotels' intangible assets. Finally, the S-D Logic framework has potential application in other areas of tourism management.

year: 2013

title: The rhetorical organisation of Maori discourse: An illustration

authors: Crombie, Winifred

subjects: Māori medium education

abstract: Almost 20% all Māori students in New Zealand schools are involved in some form of Māori-medium education. These students need to develop competence in using the language for a wide range of purposes. They need, therefore, to understand a range of written discourse conventions. In seeking to assist them in this task, elders and scholars are turning to the works of major Māori figures of the past, works composed when the language was used widely in a range of discourse contexts. However, scholars need ways of analysing these texts and of communicating their findings to others. The primary aim of this paper is to demonstrate one such approach. A single letter of condolence written in Māori is analysed here in terms of rhetorical discourse structure. On the basis of the analysis, a number of hypotheses concerning epistolary discourse in Māori are put forward. The primary hypothesis is that letters of condolence written in Māori by highly competent users of the language are likely to be characterized by an overall Problem-Solution rhetorical prototype involving spiral multilayering.

text: The rhetorical organisation of Maori discourse: An illustration Almost 20% all Māori students in New Zealand schools are involved in some form of Māori-medium education. These students need to develop competence in using the language for a wide range of purposes. They need, therefore, to understand a range of written discourse conventions. In seeking to assist them in this task, elders and scholars are turning to the works of major Māori figures of the past, works composed when the language was used widely in a range of discourse contexts. However, scholars need ways of analysing these texts and of communicating their findings to others. The primary aim of this paper is to demonstrate one such approach. A single letter of condolence written in Māori is analysed here in terms of rhetorical discourse structure. On the basis of the analysis, a number of hypotheses concerning epistolary discourse in Māori are put forward. The primary hypothesis is that letters of condolence written in Māori by highly competent users of the language are likely to be characterized by an overall Problem-Solution rhetorical prototype involving spiral multilayering.

year: 2001-02