1,225 results for Auckland University of Technology, Conference item

  • A workflow execution platform for collaborative artifact-centric business processes

    Yongchareon, S; Ngamakeur, K; Liu, C; Chaisiri, S; Yu, J

    Conference item
    Auckland University of Technology

    To execute an artifact-centric process model, current workflow execution approaches require it to be converted to some existing executable language (e.g., BPEL) in order to run on a workflow system. We argue that the transformation can incur losses of information and degrade traceability. In this paper, we proposed and developed a workflow execution platform that directly executes a collaborative (i.e., inter-organizational) workflow specification of artifact-centric business processes without performing model conversion.

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  • World Internet Project Trends in NZ

    Smith, P

    Conference item
    Auckland University of Technology

    No abstract.

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  • Modelling of a falling film evaporator for dairy processes

    Munir, MT; Zhang, Y; Wilson, DI; Yu, W; Young, BR

    Conference item
    Auckland University of Technology

    The modelling of dairy processing using commercial process simulator lags behind chemical and petrochemical process simulation. This is due to fact that most commercial process simulators do not contain food (e.g. milk) components in their component libraries, required for dairy process simulation. Recently, a “pseudo” milk containing hypothetical components (e.g. milk fat) was developed in a commercial process simulator for milk process simulation (Zhang et al. 2014). In this work, “pseudo” milk was used to model a falling film evaporator used in a milk powder production plant. It shows that commercial process simulators have capability to simulate dairy processes. The model results were validated using both literature and industry data. The model results showed around 0.1 – 9.4% differences between simulated and actual results. This work extends the capabilities of commercial process simulators and can also help practicing engineers to understand potential process improvements.

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  • Creating Creatures: Dumont and the metaphysics of evil

    Jackson, ML (2012-04-21)

    Conference item
    Auckland University of Technology

    Since the late 1990s Bruno Dumont has produced six feature films, approximately one every three years. His cinema has been highly praised and is recognized by Martine Beugnet, in Cinema and Sensation, as exemplary of a new cinema that radically challenges the understanding of cinematic affect: a cinema of sensibility rather than sense. Dumont was himself a philosopher, now turned filmmaker, though this is not the particular axis or focus for this paper. Rather, what is particularly challenging in his cinema is a fundamental concern with evil, a concern that does not moralize, that does not condemn, that does not even ask for an account of or economy of evil. I want to explore this cinema that shows the human essentially as a be-coming ‘longing’, a be-longing to being as that which comes not to a particular time or a particular language, to an articulation of its existence, but rather shows a coming to temporality, to the possibility of being-in ‘time’ and to an opening to ‘language’, to the word as the becoming it-self of the existent. In this I want to engage a reading of Schelling’s Treatise on the Essence of Human Freedom, and a particularly Heideggerian reading of this treatise as a “metaphysics of evil,” wherein, for Schelling, evil in its actuality, in its existing, is necessary for human freedom.

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  • Intercomparison between VLBI frequency transfer and other techniques

    Takiguchi, H; Koyama, Y; Ichikawa, R; Gotoh, T; Ishii, A; Hobiger, T; Fujieda, M; Amagai, J; Hosokawa, M (2012-04-23)

    Conference item
    Auckland University of Technology

    No abstract

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  • Evaluation of the new approach to improving compact-compact antenna baseline in VLBI

    Takiguchi, H; Ishii, A; Ichikawa, R; Koyama, Y (2012-04-23)

    Conference item
    Auckland University of Technology

    No abstract

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  • Married female Emirati students pursuing Higher Education: striking a balance

    Tennant, L; Saqr, S; Stringer, P

    Conference item
    Auckland University of Technology

    Opportunities for females to pursue higher education in the United Arab Emirates (UAE) has been recognized as important and strengthened significantly over the last decade. Our research was an attempt to gain insight on the challenges and barriers faced by female married Emirati students while undertaking B. Ed degrees at Emirates College of Advanced Education. The research was positioned within a sociocultural framework of the UAE context. Does a ‘One size fits all’ model in higher education programs cater equally for the needs of married and unmarried students? With this in mind, our research aimed to: • Identify challenges faced by female, married Emirati students pursuing careers as future teachers of the UAE • Determine strategies used by female, married Emirati students to overcome their particular challenges • Identify support systems that influence this group of students and facilitate their studies • Design and develop support systems at the college level intended to assist female, married students complete their studies successfully. The discussion we propose will be initiated by sharing a summary of the findings gained from a survey conducted with 100 female, married Emirati students at different stages of their study (Cohort groupings years 1-4). The conversation will illuminate the challenges faced by this group of students and the complexities of balancing married life juxtaposed with the demands of being a student teacher within a 21st century tomorrow’s schools framework. The need for tertiary level support services that empower and support the female, married Emirati student will also be discussed within the lived reality of family, community and society at large.

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  • The Naughty Nineties movable book prototype (1981), and the paper-engineering roll-on effect in tertiary teaching

    Kaiser, LJ

    Conference item
    Auckland University of Technology

    ‘Movable books’ is the term that best encompasses the wide range of paper-engineered books, and includes those with pop-up mechanisms. Movable books epitomise the work of art in book form and date back many hundreds of years – the first know example was created in the thirteenth century – and it is still very much alive today. This paper looks first at the movable books created by Lesley Kaiser, which range from her Naughty Nineties prototype for a commercial version to one-off artists books.It then looks at how Lesley has introduced paper-engineering into her teaching at AUT University. It uses as case studies the first-year and second-year Graphic Design papers History, Culture, Context 1 and Elective Project 11. Lastly, it explores the question ‘How might old and new technologies be combined to retain the best of analogue and digital books, and how might movable books retain value in a world of growing digitally interactivity.’

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  • A cost-effective EV charging method designed for residential homes with renewable energy

    Liang, X; Lie, TT; Haque, M

    Conference item
    Auckland University of Technology

    This paper presents a smart and cost effective EV (Electric Vehicle) charging methodology for residential dwellings which have renewable energy sources. The proposed method has many benefits, including reducing peak pressure on the grid, delivering cost savings to the consumer, as well as reducing battery degradation and preventing overcharge, increasing battery lifetime. The performance of the algorithm is verified by conducting simulation studies against running data of a Nissan Altra, which demonstrate that the charging time can be effectively shifted from peak time to off-peak time. The cost savings delivered by the algorithm are compared against data collected in the Beijing electricity market.

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  • Real Text-CS - Corpus based domain independent content selection model

    Perera, R; Nand, P

    Conference item
    Auckland University of Technology

    Content selection is a highly domain dependent task responsible for retrieving relevant information from a knowledge source using a given communicative goal. This paper presents a domain independent content selection model using keywords as communicative goal. We employ DBpedia triple store as our knowledge source and triples are selected based on weights assigned to each triple. The calculation of the weights is carried out through log likelihood distance between a domain corpus and a general reference corpus. The method was evaluated using keywords extracted from QALD dataset and the performance was compared with cross entropy based statistical content selection. The evaluation results showed that the proposed method can perform 32% better than cross entropy based statistical content selection.

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  • Considerations for cultural and social spaces in University Library

    Gazula, S

    Conference item
    Auckland University of Technology

    This paper explores my thoughts on a research project, how social and cultural conditions play a major role in students’ life, and influences the social and cultural practices of the university library usage at Auckland University of Technology (AUT) Manukau Campus. This research will examine the students’ use of the library and the study space in and around the campus. This qualitative research is a case study to explore the library usage at the Manukau Campus. The exploration will be based on the interviews with my library colleagues and academic staff, including focus group methods with students, and observation of the influences on social and cultural practices on a university library usage at the Manukau Campus. The paper concludes that, while planning or redeveloping libraries, one needs to consider the social and cultural impact of spaces for students of different ethnicities and how these support peer learning, create a sense of belonging, encourage student retention, and contribute to increasing enrolment at the university.

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  • Pilot study into the causes of airway drying during continuous positive air pressure breathing

    White, DE; Nates, RJ; Bartley, J

    Conference item
    Auckland University of Technology

    The airway surface liquid (ASL) lining the upper respiratory tract has an essential role in heat and moisture exchange, as well as having an important role in airway defense. Continuous positive air pressure (CPAP) users frequently report troublesome symptoms of airway dryness and nasal congestion. Clinical investigations have demonstrated that supplementary humidification reduces these symptoms but the reason for their occurrence remains unexplained. Previously, symptoms of nasal drying have been attributed to unidirectional airflow created by mouth leaks; however these still occur when leaks are absent. Tidal breathing stresses have previously been shown to regulate epithelial cell ionic fluid secretion and reabsorption into the ASL [1]. The purpose of this study was to determine whether augmented air pressures change overall mucosal ASL water supply and, if so, the extent of this effect. It is hypothesized that the low-level positive airway pressures used in CPAP therapy could reduce the ability of respiratory mucosa to humidify inhaled air as a result of reduced ASL supply from the airway mucosa.

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  • Who cares? Creative research practice in the space of the university

    O'Connor, MT (2012-04-08)

    Conference item
    Auckland University of Technology

    This research seminar aims to disclose how creative practice through writing, filmmaking and considerations of spatial design (particularly housed within the ruling symbolic of the University) can open onto something proximate to a poetics of the feminine. Further, it is not only a question of sexual difference here that inaugurates the trembling of propositional and rational forms of knowing, and yet for many it is the body that has been a helpful place to start. This seminar brings Deleuze and Guattari’s vitalist philosophy on the image (affect and percept) into proximity with the language-body-projects of Écriture Féminines (Irigrary, Cixous, Le Doeuff, Kristeva).

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  • Redeveloping a signature pedagogy for engineering: responding to new spaces and new technologies

    (2013-07-04)

    Conference item
    Auckland University of Technology

    Within disciplines, characteristic pedagogical approaches have developed that reflect the particular nature of those disciplines. Engineering, with its strong mathematical foundation, is dependent on developing problem solving methods using symbolic mathematical and diagrammatic processes. Traditional approaches featured step-by-step handwritten expositions with oral commentary delivered in spaces equipped with technology (blackboards) that supported these distinctive approaches. Over time, the design of learning spaces and their installed technologies has changed, often under pressure for institutional efficiency gains. A generic institutionally-timetabled teaching space equipped with a computer connected to digital display projector as the primary visual interface has emerged as a standard learning and teaching environment. In these environments, computing technologies with primarily keyboard and mouse based input encourage a dependence on pre-prepared static PowerPoint slides, leading to a focus on ‘a solution’, rather than emphasising the process. In engineering, the immediacy and responsiveness of the traditional approach, with its free flowing mathematics, diagrams and sketches, is lost. However, developments in pen-enabled tablets and monitors, by providing support for handwriting and sketching input, may facilitate the reclamation of the benefits of traditional engineering approaches, while also enabling the development of new innovative, collaborative approaches that are not constrained by physical spaces. This showcase will discuss our initial experiences with implementing the use of pen-enabled technology in the School of Engineering at AUT, and explore the possibilities it offers for developing a new signature pedagogy for Engineering.

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  • Digital identity: are students' views regarding digital representation of 'self' gendered?

    Lewis, L

    Conference item
    Auckland University of Technology

    Through the medium of a showcase eportfolio, the owner creates and expresses a digital ‘self’ for an external, virtual audience. As teacher education graduates realize the value of creating eportfolio views for prospective employers, questions of authentic or ethical representations of the personal and professional self are raised. This finding from our recent research with teacher education students was challenged by a conference audience in 2012 as representing a ‘typical’ female response. Consequently, in order to test the expressed assumption that females hold a more ethical approach to ‘authentic’ digital identity than males, further research has been conducted. Two focus groups, each with either male or female participants explored questions around digital identity and the (re)presentation of ‘self’. The findings will be shared in this presentation.

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  • Analyzing confidentiality and privacy concerns: insights from Android issue logs

    Licorish, S; MacDonell, SG; Clear, T

    Conference item
    Auckland University of Technology

    Context: Post-release user feedback plays an integral role in improving software quality and informing new features. Given its growing importance, feedback concerning security enhancements is particularly noteworthy. In considering the rapid uptake of Android we have examined the scale and severity of Android security threats as reported by its stakeholders. Objective: We systematically mine Android issue logs to derive insights into stakeholder perceptions and experiences in relation to certain Android security issues. Method: We employed contextual analysis techniques to study issues raised regarding confidentiality and privacy in the last three major Android releases, considering covariance of stakeholder comments, and the level of consistency in user preferences and priorities. Results: Confidentiality and privacy concerns varied in severity, and were most prevalent over Jelly Bean releases. Issues raised in regard to confidentiality related mostly to access, user credentials and permission management, while privacy concerns were mainly expressed about phone locking. Community users also expressed divergent preferences for new security features, ranging from more relaxed to very strict. Conclusions: Strategies that support continuous corrective measures for both old and new Android releases would likely maintain stakeholder confidence. An approach that provides users with basic default security settings, but with the power to configure additional security features if desired, would provide the best balance for Android's wide cohort of stakeholders.

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  • An empirical cognitive model of the development of shared understanding of requirements

    Buchan, J

    Conference item
    Auckland University of Technology

    It is well documented that customers and software development teams need to share and refine understanding of the requirements throughout the software development lifecycle. The development of this shared understand- ing is complex and error-prone however. Techniques and tools to support the development of a shared understanding of requirements (SUR) should be based on a clear conceptualization of the phenomenon, with a basis on relevant theory and analysis of observed practice. This study contributes to this with a detailed conceptualization of SUR development as sequence of group-level state transi- tions based on specializing the Team Mental Model construct. Furthermore it proposes a novel group-level cognitive model as the main result of an analysis of data collected from the observation of an Agile software development team over a period of several months. The initial high-level application of the model shows it has promise for providing new insights into supporting SUR development.

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  • A scalable approach for re-configuring evolving industrial control systems

    Sinha, R; Johnson, K; Calinescu, R

    Conference item
    Auckland University of Technology

    We present a scalable approach to automatically re-configure evolving IEC 61499 systems for deployment onto an available set of resources. We capture system architecture and high-level configuration requirements formally, and use an efficient SMT-based constraint resolution to generate a valid system configuration. Any changes in the system architecture, configuration requirements, or resources are automatically translated into a minimal set of updated constraints, allowing a faster reconfiguration as compared to a monolithic approach where the whole system is re-configured. We show the feasibility of our approach by studying an airport baggage handling system developed using the IEC 61499 standard.

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  • LTE-advanced based handover mechanism for natural disaster situations

    Ray, SK; Sarkar, NI; Deka, D

    Conference item
    Auckland University of Technology

    Telecommunication networks often face power outage problems in the natural disaster affected areas. Also, owing to a sudden substantial increase in network traffic loads the battery backup power of the base stations run out quickly and therefore hampering telecommunication services. To overcome this system performance issues, we propose a Long Term Evolution (LTE)-Advanced (LTE-A)-based user equipment (UE)-controlled and base station (Evolved Node B or eNB)-assisted handover scheme. The idea is to limit the arrival of new traffic to an already overloaded eNB by diverting their handover to lightly loaded nearby eNBs. The novelty of this work is the ability of an UE to self-detect the occurrence of a natural disaster and to self-select the most suitable target eNB (TeNB) to handover with in the disaster affected areas. The handover is performed by obtaining the weighted average score (WAS) of the direction of motion (DoM) and the leftover battery backup power of the different neighboring eNBs (NeNB). The UE also predicts its DoM and dynamically adjust the weights of the two parameters if it’s a disaster situation. Preliminary simulation results show that the scheme can offer up to 65% handover success rate in disaster situations.

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  • Examining the mechanical influences upon the sciatic nerve at the sciatic nerve-hamstring muscle interface during active and passive knee extension

    Ellis, R; Fox, J; Hitt, JR; Langevin, H; Henry, SM

    Conference item
    Auckland University of Technology

    Background: Ultrasound imaging has been used to examine movement of the peripheral nervous system in response to normal body movements and therapeutic exercises, such as neural mobilisation. Researchers have clearly established that peripheral nerves must be able to move in relation to their surrounding interfacing tissues. However, to date the mechanical influences that these interfacing tissues have upon nerve movement has yet to be determined. Purpose: We sought to examine the different mechanical influences that the surrounding hamstring muscles have upon the sciatic nerve during lower limb movements. A better understanding of the mechanical influences imposed upon the sciatic nerve, from surrounding tissues, would be beneficial to then examine these relationships in clinical populations including lumbar-related leg pain. Methods: A cross-sectional, observational laboratory study was conducted in ten healthy participants (2 males, 8 females; age 24 ± 5 years (mean ± SD); height 169 ± 7 cm; weight, 65 ± 9 kg; body mass index, 23 ± 3 kg/m2) who underwent knee extension movements (active and passive) in upright sitting and side-lying positions. High-resolution ultrasound imaging was used to assess lateral displacement of the sciatic nerve and hamstring muscles (superficial and deep regions). Ultrasound elastography was used to calculate the shear strain between the sciatic nerve-hamstring muscle interface. Electromyography was used to assess the electrical activity of the hamstring muscles during the active and passive limb movements. Range of motion of the pelvis, hip and knee joints was measured with inertial sensors in order to standardize the limb movements among participants. Results: In both the sitting and side-lying positions, passive knee extension resulted in greater differential lateral displacement of the sciatic nerve versus the hamstring muscles along with greater shear strain at the sciatic nerve-hamstring muscle interface when compared to active knee extension. Conclusion: The findings of the study suggest that the greatest amount of differential lateral displacement between the sciatic nerve and the hamstring muscles occurs during passive knee extension compared to active knee extension. Furthermore, this greater differential movement was associated with increased sciatic nerve-hamstring muscle shear strain in the passive compared to the active condition. Implications: Treatment interventions, such as neural mobilisation exercises, employ either active of passive limb movements to induce peripheral nerve movement in disorders where nerve movement is believed to be compromised. Knee extension, whether active or passive, is commonly utilised to induce movement of the sciatic nerve relative to the interfacing hamstring muscles. It would appear from this research that although passive knee extension resulted in greater movement of the sciatic nerve relative to the hamstring muscles, this was accompanied by an increase in nerve-muscle interface shear strain. In many clinical populations where nerve movement is believed to be compromised, it may be clinically prudent to avoid increases in shear strain as this may cause adverse effects from an already mechanosensitised nervous system. Keywords: Sciatic nerve, ultrasound, elastography Funding acknowledgements: Nil.

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