title: Livestock traceability in New Zealand: Using blockchain to address current challenges in the industry

authors: Deenamulle Kankanamge, Deepika Priyadarshani

subjects: Livestock traceability

abstract: The existing livestock traceability system in New Zealand hardly achieves the general goals of a traceability system such as managing disease outbreaks and tracking animal-based products from farm to fork. Further, users often complain that the New Zealand system is difficult to use. To overcome such issues in other parts of the world, blockchain-based traceability systems have been suggested. However, there is little research in the New Zealand context. This study aims to fill that gap by identifying challenges in the existing livestock traceability system in New Zealand, then evaluating if blockchain technology can address those challenges. The applicability of a blockchain-based livestock traceability system to New Zealand is discussed.
Existing literature is used to understand the potential use of blockchain technology to address livestock traceability challenges relating to the themes of data management, relationships (among supply chain partners), transparency, compliance, and visibility. To understand the New Zealand context, participants in the New Zealand livestock supply chain are interviewed. Interview data is analysed using the themes listed above. Challenges gathered from the interviews are then compared with the challenges and solutions found in literature to evaluate if a blockchain-based traceability system would suit the New Zealand context.
The results suggest that a blockchain-based traceability system supported by the Internet of Things (IoT) and smart contracts can dramatically improve the livestock traceability system in New Zealand by addressing many of the country’s traceability challenges. However, implementing such a system could initially involve a significant cost and necessitate changes to existing organisational practices. Further, workarounds should be sought for implementation barriers such as low network connectivity in rural New Zealand. Although expensive to implement, eventually, a blockchain-based traceability system could help industry manage otherwise expensive occurrences, such as food recalls, with less effort. Therefore, spending resources to implement a blockchain-based traceability system today can be a worthwhile investment for the future.

text: Livestock traceability in New Zealand: Using blockchain to address current challenges in the industry The existing livestock traceability system in New Zealand hardly achieves the general goals of a traceability system such as managing disease outbreaks and tracking animal-based products from farm to fork. Further, users often complain that the New Zealand system is difficult to use. To overcome such issues in other parts of the world, blockchain-based traceability systems have been suggested. However, there is little research in the New Zealand context. This study aims to fill that gap by identifying challenges in the existing livestock traceability system in New Zealand, then evaluating if blockchain technology can address those challenges. The applicability of a blockchain-based livestock traceability system to New Zealand is discussed.
Existing literature is used to understand the potential use of blockchain technology to address livestock traceability challenges relating to the themes of data management, relationships (among supply chain partners), transparency, compliance, and visibility. To understand the New Zealand context, participants in the New Zealand livestock supply chain are interviewed. Interview data is analysed using the themes listed above. Challenges gathered from the interviews are then compared with the challenges and solutions found in literature to evaluate if a blockchain-based traceability system would suit the New Zealand context.
The results suggest that a blockchain-based traceability system supported by the Internet of Things (IoT) and smart contracts can dramatically improve the livestock traceability system in New Zealand by addressing many of the country’s traceability challenges. However, implementing such a system could initially involve a significant cost and necessitate changes to existing organisational practices. Further, workarounds should be sought for implementation barriers such as low network connectivity in rural New Zealand. Although expensive to implement, eventually, a blockchain-based traceability system could help industry manage otherwise expensive occurrences, such as food recalls, with less effort. Therefore, spending resources to implement a blockchain-based traceability system today can be a worthwhile investment for the future.

year: 2022

title: Fouling and pressure drop analysis of milk powder deposition on the front of parallel fins

authors: Walmsley, Timothy Gordon

subjects: fouling

abstract: One method to reduce the energy consumption of industrial milk spray dryers is to recover waste heat from the exhaust dryer air. A significant challenge associated with this opportunity is the air contains a small amount of powder that may deposit on the face and surfaces of a recuperator. This paper introduces a novel lab based test that simulates powder deposition on a bank of parallel plate fins at exhaust dryer air conditions. The fin bank acts like the face of a typical finned tube row in a recuperator. The aim of this study is to look at how deposition on the front of fins is affected by the air conditions. Results show similar characteristics to other milk powder deposition studies that exhibit a dramatic increase in deposition once critical stickiness levels are reached. As powder deposits on the face of the fins, the pressure drop across the bank increases until eventually an asymptote occurs, at which point the rates of deposition and removal are similar. For very sticky conditions, deposition on the face of the fins can cause a rise in the pressure drop by as much as 65%. The pressure drop has also been successfully related to the percentage of open frontal area of the fins with and without deposition. Deposition inside and at the rear of the fin bank was found to be minimal.

text: Fouling and pressure drop analysis of milk powder deposition on the front of parallel fins One method to reduce the energy consumption of industrial milk spray dryers is to recover waste heat from the exhaust dryer air. A significant challenge associated with this opportunity is the air contains a small amount of powder that may deposit on the face and surfaces of a recuperator. This paper introduces a novel lab based test that simulates powder deposition on a bank of parallel plate fins at exhaust dryer air conditions. The fin bank acts like the face of a typical finned tube row in a recuperator. The aim of this study is to look at how deposition on the front of fins is affected by the air conditions. Results show similar characteristics to other milk powder deposition studies that exhibit a dramatic increase in deposition once critical stickiness levels are reached. As powder deposits on the face of the fins, the pressure drop across the bank increases until eventually an asymptote occurs, at which point the rates of deposition and removal are similar. For very sticky conditions, deposition on the face of the fins can cause a rise in the pressure drop by as much as 65%. The pressure drop has also been successfully related to the percentage of open frontal area of the fins with and without deposition. Deposition inside and at the rear of the fin bank was found to be minimal.

year: 2013

title: Legal responses to mental health: Is therapeutic jurisprudence the answer – the experience in New Zealand

authors: Toki, Valmaine

abstract: The orthodox understanding of ‘ethics’ encompasses a system of moral principles that define good and bad behavior. When applied to mental health, various jurisdictions, including New Zealand, have codified these principles together with the obligations on health service providers to meet these codified principles and standards. Underpinning this relationship is one of mutual trust where the physician has a responsibility, for example, to secure informed consent prior to any treatment. The existence of this therapeutic relationship can be applied when an offender who presents with a mental illness is subject to the criminal justice system.

text: Legal responses to mental health: Is therapeutic jurisprudence the answer – the experience in New Zealand The orthodox understanding of ‘ethics’ encompasses a system of moral principles that define good and bad behavior. When applied to mental health, various jurisdictions, including New Zealand, have codified these principles together with the obligations on health service providers to meet these codified principles and standards. Underpinning this relationship is one of mutual trust where the physician has a responsibility, for example, to secure informed consent prior to any treatment. The existence of this therapeutic relationship can be applied when an offender who presents with a mental illness is subject to the criminal justice system.

year: 2017