title: Use of motion sensors for autonomous monitoring of hydraulic environments

authors: Kularatna, Nihal

subjects: commercial-off-the-shelf motion sensors

abstract: Low cost, miniaturized, commercial-off-the-shelf (COTS) motion sensors, collectively with processors, an energy source and other electronic circuitry can be packaged into very small volumes for autonomous operation. If such a system operates over short periods of time, or data acquisitions occur at a very low frequency, processor resources should be sufficient to manage offsets and errors. The paper analyzes a typical set of COTS accelerometers and gyroscopes, to indicate how best these can be used in hydraulic environments. Application examples such as river bed sediment monitoring, milk vat monitoring etc. are briefly discussed, with application oriented design approaches. Minimizing the power consumption to introduce a novel, rechargeable power supply design is briefly outlined.

text: Use of motion sensors for autonomous monitoring of hydraulic environments Low cost, miniaturized, commercial-off-the-shelf (COTS) motion sensors, collectively with processors, an energy source and other electronic circuitry can be packaged into very small volumes for autonomous operation. If such a system operates over short periods of time, or data acquisitions occur at a very low frequency, processor resources should be sufficient to manage offsets and errors. The paper analyzes a typical set of COTS accelerometers and gyroscopes, to indicate how best these can be used in hydraulic environments. Application examples such as river bed sediment monitoring, milk vat monitoring etc. are briefly discussed, with application oriented design approaches. Minimizing the power consumption to introduce a novel, rechargeable power supply design is briefly outlined.

year: 2008

title: Informed mutation of wind farm layouts to maximise energy harvest

authors: Mayo, Michael

subjects: Machine learning

abstract: Correct placement of turbines in a wind farm is a critical issue in wind farm design optimisation. While traditional "trial and error"-based approaches suffice for small layouts, automated approaches are required for larger wind farms with turbines numbering in the hundreds. In this paper we propose an evolutionary strategy with a novel mutation operator for identifying wind farm layouts that minimise expected velocity deficit due to wake effects. The mutation operator is based on constructing a predictive model of velocity deficits across a layout so that mutations are inherently biased towards better layouts. This makes the operator informed rather than randomised. We perform a comprehensive evaluation of our approach on five challenging simulated scenarios using a simulation approach acceptable to industry [1]. We then compare our algorithm against two baseline approaches including the Turbine Displacement Algorithm [2]. Our results indicate that our informed mutation approach works effectively, with our approach identifying layouts with the lowest aggregate velocity deficits on all five test scenarios.

text: Informed mutation of wind farm layouts to maximise energy harvest Correct placement of turbines in a wind farm is a critical issue in wind farm design optimisation. While traditional "trial and error"-based approaches suffice for small layouts, automated approaches are required for larger wind farms with turbines numbering in the hundreds. In this paper we propose an evolutionary strategy with a novel mutation operator for identifying wind farm layouts that minimise expected velocity deficit due to wake effects. The mutation operator is based on constructing a predictive model of velocity deficits across a layout so that mutations are inherently biased towards better layouts. This makes the operator informed rather than randomised. We perform a comprehensive evaluation of our approach on five challenging simulated scenarios using a simulation approach acceptable to industry [1]. We then compare our algorithm against two baseline approaches including the Turbine Displacement Algorithm [2]. Our results indicate that our informed mutation approach works effectively, with our approach identifying layouts with the lowest aggregate velocity deficits on all five test scenarios.

year: 2016

title: Opening address

authors: Levy, Michelle Patricia

subjects: Maori

abstract: In 2002, the Māori and Psychology Research Unit at the University of Waikato made a valuable contribution to the teaching and practice of psychology in Aotearoa, via the Māori Graduates of Psychology Symposium. The symposium in 2002, with its theme of “Making a Difference” was designed to: provide an opportunity for exposure to role models; bring together Māori graduates of psychology to network and share information; and through the publication and dissemination of the Symposium proceedings provide a resource for teaching and practice in psychology. With over 100 delegates and 30 presentations, the 2002 symposium was widely acknowledged as a success. It resulted in the compilation of proceedings which have become a valuable resource in psychology. 
While there have been informal gatherings and ongoing networking over the past five years, there have been no formal gatherings since that time. We at the Māori and Psychology Research Unit consider it timely in 2007, five years on, to convene another Symposium. Our conversations with Pacific psychologists and recognition of the ties which exist between us as Pacific nations, saw our focus expand to include Pacific psychologists and psychologies.

text: Opening address In 2002, the Māori and Psychology Research Unit at the University of Waikato made a valuable contribution to the teaching and practice of psychology in Aotearoa, via the Māori Graduates of Psychology Symposium. The symposium in 2002, with its theme of “Making a Difference” was designed to: provide an opportunity for exposure to role models; bring together Māori graduates of psychology to network and share information; and through the publication and dissemination of the Symposium proceedings provide a resource for teaching and practice in psychology. With over 100 delegates and 30 presentations, the 2002 symposium was widely acknowledged as a success. It resulted in the compilation of proceedings which have become a valuable resource in psychology. 
While there have been informal gatherings and ongoing networking over the past five years, there have been no formal gatherings since that time. We at the Māori and Psychology Research Unit consider it timely in 2007, five years on, to convene another Symposium. Our conversations with Pacific psychologists and recognition of the ties which exist between us as Pacific nations, saw our focus expand to include Pacific psychologists and psychologies.

year: 2008