title: Impact of Repair Joints in Fencing Wire on Data Communications: How to Receive Radio and Block Data using No. 8 Wire

authors: McMullan, Jonathon

abstract: Modern electric fences have remote controls and remote monitors that communicate with the energizer through the active fence wire. This manuscript looks at the impact of repair joints on the data communications between energizer and remotes. We report measurements of nonlinear rust-induced characteristics in joints and we draw conclusions about their effects in the context of an electric fence carrying data communications signals. We furthermore demonstrate how their nonlinear characteristics can cause mixing and detection effects that could account for radio reception.

text: Impact of Repair Joints in Fencing Wire on Data Communications: How to Receive Radio and Block Data using No. 8 Wire Modern electric fences have remote controls and remote monitors that communicate with the energizer through the active fence wire. This manuscript looks at the impact of repair joints on the data communications between energizer and remotes. We report measurements of nonlinear rust-induced characteristics in joints and we draw conclusions about their effects in the context of an electric fence carrying data communications signals. We furthermore demonstrate how their nonlinear characteristics can cause mixing and detection effects that could account for radio reception.

year: 2014

title: Override and restricted union for partial functions

authors: Stokes, Tim

abstract: The override operation  is a natural one in computer science, and has connections with other areas of mathematics such as hyperplane arrangements. For arbitrary functions f and g, f  g is the function with
domain dom(f) ∪ dom(g) that agrees with f on dom(f) and with g on dom(g)\ dom(f). Jackson and the author have shown that there is no finite axiomatisation of algebras of functions of signature (). But adding operations (such as update) to this minimal signature can lead to finite axiomatisations. For the functional signature (, \) where \ is set-theoretic difference, Cirulis has given a finite equational axiomatisation as subtraction o-semilattices. Define f  g = (f g)∩(g f) for all functions f and g; this is the largest domain restriction of the binary relation f ∪ g that gives a partial function. Now f ∩g = f\(f\g) and f g = f  (f  g) for all functions f,g, so the signatures () and (, ∩) are both intermediate between () and (, \) in expressive power. We show that each is finitely axiomatised, with the former giving a proper quasivariety and the latter the variety of associative distributive o-semilattices in the sense of Cirulis.

text: Override and restricted union for partial functions The override operation  is a natural one in computer science, and has connections with other areas of mathematics such as hyperplane arrangements. For arbitrary functions f and g, f  g is the function with
domain dom(f) ∪ dom(g) that agrees with f on dom(f) and with g on dom(g)\ dom(f). Jackson and the author have shown that there is no finite axiomatisation of algebras of functions of signature (). But adding operations (such as update) to this minimal signature can lead to finite axiomatisations. For the functional signature (, \) where \ is set-theoretic difference, Cirulis has given a finite equational axiomatisation as subtraction o-semilattices. Define f  g = (f g)∩(g f) for all functions f and g; this is the largest domain restriction of the binary relation f ∪ g that gives a partial function. Now f ∩g = f\(f\g) and f g = f  (f  g) for all functions f,g, so the signatures () and (, ∩) are both intermediate between () and (, \) in expressive power. We show that each is finitely axiomatised, with the former giving a proper quasivariety and the latter the variety of associative distributive o-semilattices in the sense of Cirulis.

year: 2024-08-12

title: Te manemanerau a te kāwanatanga: A history of the confiscation of Tūhoe lands in the Bay of Plenty

authors: Melbourne, Sydney

subjects: Ngāi Tūhoe

abstract: This thesis endeavours to show that Tūhoe lands should never have been confiscated and that Tūhoe efforts to gain compensation have been totally unsuccessful to date. When certain lands within the confiscated district of the Bay of Plenty were returned to the tribes there, Tūhoe were not granted any. Furthermore, lands which actually belonged to Tūhoe were granted to other tribes.
Although the major focus is on issues specific to Tūhoe, these are viewed within the wider context of nineteenth century land acquisition in New Zealand. This study looks at Tūhoe historical claims to disputed lands included in the confiscation district of the Bay of Plenty. Chapter One traces the extent of Tūhoe territories within the confiscation district and describes how Tūhoe came to occupy them and the duration of their occupation. Information about these claims came from tribal oral sources and original manuscripts, as well as from more generally accessible sources.
The development of colonial expansion patterns is discussed in Chapter Two. The contention is that they were based on materialistic considerations and legal pretexts to justify the acquisition of Māori lands. Hostilities between Māori and Government in the Bay of Plenty are dealt with in Chapter Three. Particular attention is paid to the causes of the hostilities and the complex racial and political misunderstandings which contributed to the inevitability of war. As a result of these encounters, the New Zealand Settlements Act was imposed.
Chapter Four covers the implementation of its provisions through the Compensation Court. The failings of this Court and its commissioners and field officials are exposed.
Chapter Five examines the settlement of Tūhoe lands in Ōpouriao and Waimana, as well as the changing fortunes of some of the settlers who took advantage of the settlement scheme. After placing the experiences of Tūhoe people within the wider context of what had taken place in New Zealand, Chapter Six focuses on Tūhoe attempts to bring the wrongs they had suffered to the attention of Government. In retrospect these early Tūhoe attempts at redress show that much has to be learnt about presenting substantial submissions. It was obvious that much of what was known by the elders then, though recorded, was never used in evidence to support their petitions. Nonetheless, without the existence of these manuscripts, present attempts would not be possible.
Chapter Seven gives a basis for a proposed just settlement for the confiscation of Tūhoe lands. In order to provide a guide for monetary compensation, details of values of Tūhoe confiscated land have been sought from official records. Compensation for the denial of justice, the loss of human life, land and property, remain open for negotiation.
Finally, while certain conclusions can be and are drawn from these investigations, the end of the story remains unwritten. It will depend on the outcome of new Tūhoe attempts to gain redress from the appropriate statutory body.

text: Te manemanerau a te kāwanatanga: A history of the confiscation of Tūhoe lands in the Bay of Plenty This thesis endeavours to show that Tūhoe lands should never have been confiscated and that Tūhoe efforts to gain compensation have been totally unsuccessful to date. When certain lands within the confiscated district of the Bay of Plenty were returned to the tribes there, Tūhoe were not granted any. Furthermore, lands which actually belonged to Tūhoe were granted to other tribes.
Although the major focus is on issues specific to Tūhoe, these are viewed within the wider context of nineteenth century land acquisition in New Zealand. This study looks at Tūhoe historical claims to disputed lands included in the confiscation district of the Bay of Plenty. Chapter One traces the extent of Tūhoe territories within the confiscation district and describes how Tūhoe came to occupy them and the duration of their occupation. Information about these claims came from tribal oral sources and original manuscripts, as well as from more generally accessible sources.
The development of colonial expansion patterns is discussed in Chapter Two. The contention is that they were based on materialistic considerations and legal pretexts to justify the acquisition of Māori lands. Hostilities between Māori and Government in the Bay of Plenty are dealt with in Chapter Three. Particular attention is paid to the causes of the hostilities and the complex racial and political misunderstandings which contributed to the inevitability of war. As a result of these encounters, the New Zealand Settlements Act was imposed.
Chapter Four covers the implementation of its provisions through the Compensation Court. The failings of this Court and its commissioners and field officials are exposed.
Chapter Five examines the settlement of Tūhoe lands in Ōpouriao and Waimana, as well as the changing fortunes of some of the settlers who took advantage of the settlement scheme. After placing the experiences of Tūhoe people within the wider context of what had taken place in New Zealand, Chapter Six focuses on Tūhoe attempts to bring the wrongs they had suffered to the attention of Government. In retrospect these early Tūhoe attempts at redress show that much has to be learnt about presenting substantial submissions. It was obvious that much of what was known by the elders then, though recorded, was never used in evidence to support their petitions. Nonetheless, without the existence of these manuscripts, present attempts would not be possible.
Chapter Seven gives a basis for a proposed just settlement for the confiscation of Tūhoe lands. In order to provide a guide for monetary compensation, details of values of Tūhoe confiscated land have been sought from official records. Compensation for the denial of justice, the loss of human life, land and property, remain open for negotiation.
Finally, while certain conclusions can be and are drawn from these investigations, the end of the story remains unwritten. It will depend on the outcome of new Tūhoe attempts to gain redress from the appropriate statutory body.

year: 1987