title: Development of a multispectral imaging system for apple firmness prediction

authors: Sun, Jason

abstract: Multispectral imaging has been studied in recent years as a means of assessing fruit firmness. Here we report on the development of a static multispectral imaging system (MSI) that was used to validate the potential of the technique for high-speed commercial grading. The system consists of a high-performance CMOS camera, four lasers, electronically controlled shutters and a location control system. It captures four spectral scattering images on the fruit. In this study 100 ‘Royal Gala’ apples have been measured using the static MSI. The MSI measurements were applied on the intact apple and also on a flat surface of internal flesh exposed by removing a thick skin slice. The scattering profiles were fitted with a standard light diffusion model and a heuristic modified Lorentzian model. The results showed that the correlations between penetrometer firmness and model parameters were poor, with the correlation coefficient, R, ranging from 0.4 to 0.8 in the best circumstance of the flat surface measurements. Although multivariate models can improve the correlations, this work suggests that laser scattering information on its own is not sufficient to predict the firmness.

text: Development of a multispectral imaging system for apple firmness prediction Multispectral imaging has been studied in recent years as a means of assessing fruit firmness. Here we report on the development of a static multispectral imaging system (MSI) that was used to validate the potential of the technique for high-speed commercial grading. The system consists of a high-performance CMOS camera, four lasers, electronically controlled shutters and a location control system. It captures four spectral scattering images on the fruit. In this study 100 ‘Royal Gala’ apples have been measured using the static MSI. The MSI measurements were applied on the intact apple and also on a flat surface of internal flesh exposed by removing a thick skin slice. The scattering profiles were fitted with a standard light diffusion model and a heuristic modified Lorentzian model. The results showed that the correlations between penetrometer firmness and model parameters were poor, with the correlation coefficient, R, ranging from 0.4 to 0.8 in the best circumstance of the flat surface measurements. Although multivariate models can improve the correlations, this work suggests that laser scattering information on its own is not sufficient to predict the firmness.

year: 2015

title: Supporting Organisational Critical Activities From Web Sites: An Evaluation Methodology Development

authors: Hung, Wei-Hsi (Frank)

subjects: Organisational critical activities

abstract: quot; Organisational critical activities quot; (OCAs) are activities which must be conducted by the organisation constantly in order to be successful in the industry. They are recognised as being essential to short, medium, and long-term success in that industry, have been significantly resourced and receive regular senior management monitoring and direction. Although these activities are extremely important, some empirical studies have shown that they are not well supported by organisations, particularly in the area of Web support. This thesis develops an evaluation methodology called the quot;organisational critical activity Web support evaluation methodology quot; (OCAWSEM) which can be utilised to elicit OCAs from organisations, evaluate whether an organisation acutes; OCAs are being supported by its Web site, and provide guidance on how the organisation can improve its Web site. To develop the OCAWSEM, this thesis reviews the relevant literature and proposes a prototype OCAWSEM. A new iterative case design (ICD) approach has been used in order to further develop the prototype, and then to test the improved OCAWSEM. The selected field cases were eight universities in New Zealand. In total, 43 semi-structured interviews were conducted with senior teams, middle level managers, and Web teams. A systematic review of these universitiesacute Web sites was performed from the provideracutes, rather than the useracutes perspective. The outcome shows that the Developed OCAWSEM is a valid and reliable methodology for the evaluation of the support for OCAs from Web sites in the universities in New Zealand. This thesis provides useful lessons, drawn from the development and testing processes, as the basis from which to develop more specific OCAWSEMs for use in other organisational and industry contexts. Both practitioners and academicians can gain a deeper understanding of the notion of OCAs, better elicit OCAs from management, conduct Web site evaluations, and discuss the support of the Web sites for the OCAs.

text: Supporting Organisational Critical Activities From Web Sites: An Evaluation Methodology Development quot; Organisational critical activities quot; (OCAs) are activities which must be conducted by the organisation constantly in order to be successful in the industry. They are recognised as being essential to short, medium, and long-term success in that industry, have been significantly resourced and receive regular senior management monitoring and direction. Although these activities are extremely important, some empirical studies have shown that they are not well supported by organisations, particularly in the area of Web support. This thesis develops an evaluation methodology called the quot;organisational critical activity Web support evaluation methodology quot; (OCAWSEM) which can be utilised to elicit OCAs from organisations, evaluate whether an organisation acutes; OCAs are being supported by its Web site, and provide guidance on how the organisation can improve its Web site. To develop the OCAWSEM, this thesis reviews the relevant literature and proposes a prototype OCAWSEM. A new iterative case design (ICD) approach has been used in order to further develop the prototype, and then to test the improved OCAWSEM. The selected field cases were eight universities in New Zealand. In total, 43 semi-structured interviews were conducted with senior teams, middle level managers, and Web teams. A systematic review of these universitiesacute Web sites was performed from the provideracutes, rather than the useracutes perspective. The outcome shows that the Developed OCAWSEM is a valid and reliable methodology for the evaluation of the support for OCAs from Web sites in the universities in New Zealand. This thesis provides useful lessons, drawn from the development and testing processes, as the basis from which to develop more specific OCAWSEMs for use in other organisational and industry contexts. Both practitioners and academicians can gain a deeper understanding of the notion of OCAs, better elicit OCAs from management, conduct Web site evaluations, and discuss the support of the Web sites for the OCAs.

year: 2006

title: Te Ahi Kā

authors: Temara, Pou

subjects: Ahi kā

abstract: Ko te urutaumatua o tēnei tuhinga, ko te matapaki i te ahi kā. He aha tēnei tikanga? I pēhea i ara ake ai? He aha ōna mātāpono, ōna taipitopito? Koia te tūāpapa mō te tuhinga nei. Tuarua, ko te wānanga i te tikanga Māori me ōna rerenga pērā i te whakapapa. Ko te pātai ka puta i tēnei wāhanga o te wānanga ko tēnei nā, he aha te wāhi o te whakapapa ki te ahi kā? Ko te ngako o tēnei tuhinga ko te wetewete i te tikanga ahi kā kia whai tikanga ai te whakataukī nei, ‘ko te ahi kā te mana o te hapū ki te whenua’.

text: Te Ahi Kā Ko te urutaumatua o tēnei tuhinga, ko te matapaki i te ahi kā. He aha tēnei tikanga? I pēhea i ara ake ai? He aha ōna mātāpono, ōna taipitopito? Koia te tūāpapa mō te tuhinga nei. Tuarua, ko te wānanga i te tikanga Māori me ōna rerenga pērā i te whakapapa. Ko te pātai ka puta i tēnei wāhanga o te wānanga ko tēnei nā, he aha te wāhi o te whakapapa ki te ahi kā? Ko te ngako o tēnei tuhinga ko te wetewete i te tikanga ahi kā kia whai tikanga ai te whakataukī nei, ‘ko te ahi kā te mana o te hapū ki te whenua’.

year: 2012-05