title: The Art of Coffee Roasting: Investigations into Sensor Development for the Application of Controlling Coffee Roasting

authors: Kelly, Cameron Brian Desmond

subjects: Coffee

abstract: In this thesis, I investigate novel methods of sensing change in roasting coffee. Coffee roasting is a vital step in coffee’s supply chain. It is the process that takes green coffee and transforms it via a series of many chemical and physical reactions to produce the flavours for which coffee is recognised. As of today, correctly roasted coffee has been an art. My work applies different methods of sensing to track various changes in coffee as it roasts with the end goal of automating the art.
The goal was to find an event or measurable phenomenon that could be used to detect when the roasting coffee has reached an ideal point, beyond which the beans would start to taste burnt. My investigations looked at various sensing methods. I expanded on three different areas of test: bean temperature, online moisture measurement using microwave resonance, and surface chemistry using Raman spectrometry. Using these different methods, I was able to produce novel and interesting measurements. 
Each of the measurement methods performed satisfactorily and produced novel results. These results however did not produce the desired measurable event or independent characteristics. This meant that they were not able to individually solve the problem. However, their uniqueness and application flexibility would allow them to be used as elements in future roasting sensor systems.

text: The Art of Coffee Roasting: Investigations into Sensor Development for the Application of Controlling Coffee Roasting In this thesis, I investigate novel methods of sensing change in roasting coffee. Coffee roasting is a vital step in coffee’s supply chain. It is the process that takes green coffee and transforms it via a series of many chemical and physical reactions to produce the flavours for which coffee is recognised. As of today, correctly roasted coffee has been an art. My work applies different methods of sensing to track various changes in coffee as it roasts with the end goal of automating the art.
The goal was to find an event or measurable phenomenon that could be used to detect when the roasting coffee has reached an ideal point, beyond which the beans would start to taste burnt. My investigations looked at various sensing methods. I expanded on three different areas of test: bean temperature, online moisture measurement using microwave resonance, and surface chemistry using Raman spectrometry. Using these different methods, I was able to produce novel and interesting measurements. 
Each of the measurement methods performed satisfactorily and produced novel results. These results however did not produce the desired measurable event or independent characteristics. This meant that they were not able to individually solve the problem. However, their uniqueness and application flexibility would allow them to be used as elements in future roasting sensor systems.

year: 2018

title: Data maze deciphered

authors: White, Elizabeth Jayne

abstract: Research in the classroom often means long periods of time hanging out with teachers and children as they go about their everyday work. Waikato University lecturer Jayne White argues the case for units of analysis to refine the researcher’s focus, so data generation responds to the questions being asked and the methodology underpinning it.

text: Data maze deciphered Research in the classroom often means long periods of time hanging out with teachers and children as they go about their everyday work. Waikato University lecturer Jayne White argues the case for units of analysis to refine the researcher’s focus, so data generation responds to the questions being asked and the methodology underpinning it.

year: 2010

title: Bay of Plenty Region and its Territorial Authorities: Demographic Profile 1986 - 2031

authors: Jackson, Natalie

subjects: Bay of Plenty Region

abstract: This report outlines the demographic changes that have occurred in Bay of Plenty Region, as well as what trends are expected in the future.

text: Bay of Plenty Region and its Territorial Authorities: Demographic Profile 1986 - 2031 This report outlines the demographic changes that have occurred in Bay of Plenty Region, as well as what trends are expected in the future.

year: 2013-12