Tuwhera Research Repository

The Tuwhera Research Repository provides sustainable open access and archiving to a broad range of AUT produced research - theses, research outputs and datasets.

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Recent Submissions

Access status: Open Access ,
History and Development of University Doctoral Academical Dress in Aotearoa (New Zealand)
(New Prairie Press, 2022-12-27) Pilkington, Scott
In 2018 it was announced that Auckland University of Technology (AUT) would join the other seven universities in Aotearoa (New Zealand) in offering a higher doctorate qualification. As part of this process it became apparent that new academical dress would need to be designed and created. Working in the university’s Graduate Research School gave me an opportunity to provide input, and as a result, I designed a new set of academic dress for these qualifications in conjunction with the university’s official robemaker, Paul Fielder (FBS). This provided a prompt to examine what academical dress exists for existing AUT doctorates – so that the new qualifications (a DLitt and a DSc are being offered as of 1st January 2019) could be sympathetic to the existing ones; and also what the relationship is between different doctoral academical dress at the other universities in Aotearoa – so that the design of the new dress was not reinventing the wheel. This research project builds on this examination to examine the history and development of doctoral academic dress across Aotearoa. This study found that there is a range of similarity across doctoral dress in universities across New Zealand, with the six universities that were originally constituents of the University of New Zealand being the most similar (as at one point they shared a common academic dress).
Access status: Open Access ,
Voices From the ‘Margins’ of a Pandemic: Impact of a Lack of Employee Voice on Health and Safety for Community Support Workers During Covid-19
(Auckland University of Technology (AUT) Library, 2024-03-28) Hurd, Fiona; Ravenswood, Katherine; Nicholson, Amber
In the context of a community-based participatory project, we interviewed 84 community support workers to explore their experiences through the Covid-19 pandemic, Participants highlighted significant WHS concerns that either arose during, or were heightened due to, the pandemic working conditions. Participants detailed their efforts to activate employee voice mechanisms across the ‘staircase of voice’ (Wilkinson, 2010). However, despite significant efforts to employ these mechanisms, participants’ messages were not received. This reinforces the importance of both workplace and societal conditions that support both the delivery and receiving of employee voice messages (Romney, 2021). Within the context of significant gendered regimes and poor societal perceptions of care work, the effectiveness of voice mechanisms was diminished, leading to significant erosion of WHS conditions.
Access status: Open Access ,
Hydrogen Production From Wastewater Using Interdigitated Printed Electrode-based Single-chamber Microbial Electrolysis Cells
(Elsevier BV, 2024-08-17) Kumar, V; Behera, M; Lv, Y; Pradheepa Kamarajan, B; Singamneni, S
In the ever-increasing quest for alternative energy sources, hydrogen emerged as a promising green option, but efficient and economical production and management have been the primary constraints. Converting wastewater into H2 and other forms of energy attracted significant attention in terms of simultaneously and sustainably managing both the wastewater and the energy generation problems. Microbial Electrolysis Cells (MEC) evolved recently as promising options for converting wastewater into H2 and electricity but with serious constraints on scalability. The current research aims to explore design and manufacturing solutions to build structurally strong and electrochemically effective electrodes that can also lead to scalable MEC. Two designs based on the interdigitated and spiral electrode architectures are proposed and evaluated. The added design freedom with additive manufacturing by selective laser melting of specific alloys of choice is effectively utilised in physically prototyping the interdigitated and spiral electrode forms designed with controlled porosity constraints. Microstructural, electrochemical, and cell performance characterisations led to the understanding that the spiral electrode configuration with polypyrrole-coated stainless steel 316L anode is a promising design option for both longitudinal and lateral scale-up of the MEC.
Access status: Open Access ,
Twelve Steps and Talanoa: An Exploratory Study of the Experiences of Pacific Peoples in New Zealand Twelve Step Programmes
(Informa UK Limited, 2025-03-07) Tongalea-Nolan, Laura; Bellringer, Maria E; Tiatia-Siau, Jemaima
Fewer Pacific peoples in New Zealand with substance use disorder access addictions services than the general population. This study explored the experiences of six Pacific peoples in Twelve Step Programmes via face-to-face semi-structured talanoa-style interviews. Four themes emerged from the data: Inadequate preparation and orientation, Communal nature, Resonance with Pacific practices, and Eurocentric and gendered nature, highlighting issues related to the lack of gendered spaces and Pacific-specific subgroups. Fellowship and connectedness were considered helpful. The findings increase understanding of issues faced by Pacific peoples in addictions recovery support and can inform future research to develop effective addictions interventions for Pacific peoples in Western countries.
Access status: Open Access ,
Power Quality and Performance Assessment of Grid-connected Photovoltaic Distributed Generation With Compliance to Stipulated Grid Integration Requirements
(European Open Science Publishing, 2021-11-04) Nkado, Fredrick; Nkado, Franklin
<jats:p>Recently, the demand for electrical energy has increased more than energy production due to the growing population and industrialization. Therefore, the distributed generators integration (DGs) into the distribution system has been widely adopted. This work examines the effect of photovoltaic-based distributed generator (PV-DG) integration on power quality effect of a radial distribution system. Firstly, the capacity and optimum placement of the PV-DG units in the distribution network are determined by employing the particle swarm optimization (PSO) algorithm. Then, the impact of PV-DG integration on voltage harmonic distortion is analyzed by performing harmonic load flow analysis. Also, the P-V curve method is used to evaluate the effects of higher PV-DG penetration levels on loading margin and voltage magnitude. The simulation results show that as the PV-DG units’ penetration level increases, a greater level of harmonic distortion is injected, implying that the PV-DG units should only be integrated up to the network’s maximum capacity. Therefore, high harmonic distortion is produced when the PV-DG units are penetrated beyond this maximum penetration level, which has a negative impact on the system’s performance. The total voltage harmonic distortion is 4.17 % and 4.24 % at PCC1 and PCC2 at the highest penetration level, allowing the acceptable harmonic distortion limit. Also, grid-connected PV-DG units improve loading margin and voltage magnitude, according to the P-V curve results. The standard IEEE-33 bus distribution system is modelled in ETAP software and is used as a test system for this study.</jats:p>