title: A rational approximation to the evolution of a free surface during fluid withdrawal through a point sink

authors: Hocking, Graeme Charles

subjects: mathematics

abstract: The time varying flow in which fluid is withdrawn from a reservoir through a point sink of variable strength beneath a free surface is considered. Asymptotic techniques are used to derive an approximate solution to the flow that is valid at intermediate times, giving a simple rational approximation to track changes in the free surface for any temporal variations in the sink strength. Comparisons with numerical simulations are given, showing that the approximation has wide applicability.

text: A rational approximation to the evolution of a free surface during fluid withdrawal through a point sink The time varying flow in which fluid is withdrawn from a reservoir through a point sink of variable strength beneath a free surface is considered. Asymptotic techniques are used to derive an approximate solution to the flow that is valid at intermediate times, giving a simple rational approximation to track changes in the free surface for any temporal variations in the sink strength. Comparisons with numerical simulations are given, showing that the approximation has wide applicability.

year: 2010

title: Baring some essentials: boys' achievement, ERO and leadership.

authors: Wright, Noeline

subjects: school administrators

abstract: This article identifies some popular concerns about boys' achievement, and concerns raised by researchers. The Education Review Office report on the achievement of boys is critiqued in relation to the role masculinities play in regulating boys' attitudes to learning. The paper concludes with some implications and obligations for educational leaders in addressing issues about boys' learning and achievement within a context of social justice.

text: Baring some essentials: boys' achievement, ERO and leadership. This article identifies some popular concerns about boys' achievement, and concerns raised by researchers. The Education Review Office report on the achievement of boys is critiqued in relation to the role masculinities play in regulating boys' attitudes to learning. The paper concludes with some implications and obligations for educational leaders in addressing issues about boys' learning and achievement within a context of social justice.

year: 2000

title: Mana Wahine reworking the power to name taonga

authors: Ringham, Sandra Lee

abstract: The capacity of Indigenous peoples to officially name taonga species (flora and fauna) within taxonomy signifies resilience and a reworking of western scientific processes and institutions. This article explores the ways in which Ngāti Kuri women contribute to environmental justice through the naming of taonga species. Ngāti Kuri were the first tribe in the world to install a tribal name into the co-authorship of a nomenclature. The article explores the ways in which Ngāti Kuri women, both past and present, rework environmental relationships and knowledge in both tribal and non-tribal spaces in Aotearoa's most northern region.

text: Mana Wahine reworking the power to name taonga The capacity of Indigenous peoples to officially name taonga species (flora and fauna) within taxonomy signifies resilience and a reworking of western scientific processes and institutions. This article explores the ways in which Ngāti Kuri women contribute to environmental justice through the naming of taonga species. Ngāti Kuri were the first tribe in the world to install a tribal name into the co-authorship of a nomenclature. The article explores the ways in which Ngāti Kuri women, both past and present, rework environmental relationships and knowledge in both tribal and non-tribal spaces in Aotearoa's most northern region.

year: 2023-01-01