Scaling of free convection heat transfer in a triangular cavity for Pr>1

Unsteady natural convection inside a triangular cavity subject to a non-instantaneous heating on the inclined walls in the form of an imposed temperature which increases linearly up to a prescribed steady value over a prescribed time is reported. The development of the flow from start-up to a steady-state has been described based on scaling analyses and direct numerical simulations. The ramp temperature has been chosen in such a way that the boundary layer is reached a quasi-steady mode before the growth of the temperature is completed. In this mode the thermal boundary layer at first grows in thickness, then contracts with increasing time. However, if the imposed wall temperature growth period is sufficiently short, the boundary layer develops differently. It is seen that the shape of many houses are isosceles triangular cross-section. The heat transfer process through the roof of the attic-shaped space should be well understood. Because, in the building energy, one of the most important objectives for design and construction of houses is to provide thermal comfort for occupants. Moreover, in the present energy-conscious society it is also a requirement for houses to be energy efficient, i.e. the energy consumption for heating or air-conditioning houses must be minimized.

Abduction : the writing of a historical novel

This is a practice-led project consisting of a historical novel Abduction and related exegesis. The novel is a third person intimate narrative set in the mid-nineteenth century and is based on actual events and persons caught up in, or furthering, the mass dispossession of small farmers in Scotland known as the ‘Clearances’. The narrative focuses on the situation in the Outer Hebrides and northern Scotland. It is based on documented facts leading up to a controversial trial in 1850 that arose because a twenty year old woman of the period (the central protagonist, Jess Mackenzie) eloped with a young farmer to escape her parent’s pressure to marry a rival suitor, himself a powerful lawyer and ‘factor’ at the centre of many of the Clearances. The young woman’s independent ideas were ahead of her time, and the decisions she made under great pressure were crucial in some dramatic events that unfolded in Scotland and later in the colony of Victoria, to which she and her new husband emigrated soon after the trial. The exegesis is composed of two unequal parts. It briefly considers the development of the literary historical fiction genre in the nineteenth century with Walter Scott in particular, a genre found useful in representing women’s issues of the Victorian era by Victorian and contemporary authors. The exegesis also briefly considers the appropriateness of the fiction genre (as opposed to creative nonfiction) in creating the lived experience in a fact-based work. The major part of the exegesis is a detailed, reflective analysis of the problem-solving process involved in writing the novel, structured by reference to Kate Grenville’s Searching for the Secret River – a work of metawriting that explains her creative process in researching and writing historical fiction based on fact.

Natural convection in the attic-shaped spaces

Heat transfer through an attic space into or out of buildings is an important issue for attic-shaped houses in both hot and cold climates. One of the important objectives for design and construction of houses is to provide thermal comfort for occupants. In the present energy-conscious society, it is also a requirement for houses to be energy efficient, i.e. the energy consumption for heating or air-conditioning houses must be minimized. Relevant to these objectives, research into heat transfer in attics has been conducted for about three decades. The transient behaviour of an attic space is directly relevant to our daily life. Certain periods of the day or night may be considered as having a constant ambient temperature (e.g. during 11am - 2pm or 11pm - 2am). However, at other times during the day or night the ambient temperature changes with time (e.g. between 5am - 9am or 5pm - 9pm). Therefore, the analysis of steady state solution is not sufficient to describe the fluid flow and heat transfer in the attic space. The discussion of the transient development of the boundary is required. A theoretical understanding of the transient behaviour of the flow in the enclosure is performed through scaling analysis for sudden and ramp heating conditions. A proper identification of the timescales, the velocity and the thickness relevant to the flow that develops inside the cavity makes it possible to predict theoretically the basic flow features that will survive once the thermal flow in the enclosure reaches a steady state. Those scaling predictions have been verified by a series of numerical simulations.

Work in America Institute, Inc. – Bibliography

The Catherwood Library, which serves Cornell's School of Industrial and Labor Relations, houses a complete set of the studies either published by or produced under the auspices of the Work in America Institute, Inc. These volumes were donated to the Catherwood Library by the Institute's Board of Directors through the initiative of Jay W. Waks, ILR '68, who succeeded Mr. Rosow as Chair of the Institute and who, for many years, sat on the Institute's Executive Committee with Mr. Rosow and Thomas R. Donahue, former Secretary-Treasurer and Interim President of the AFL-CIO. Each volume bears a bookplate with this message: "This volume was donated by the Work in America Institute, Inc. in honor of its founder, Jerome M. Rosow, 1919-2002." For additional information or to check on the availability of a document, please contact the Reference Department at 607-255-2277 or email us at ilrref@cornell.edu.

Policy Coordination in an Oligopolistic Housing Market

This paper analyzes the consequences of the interaction between two different levels of government (regulators) in the development of housing policy when their decisions determine the level of competition in the housing market. The analysis discusses the implications derived from a lack of coordination between a local regulator who controls the supply of land for housing development and a central regulator who decides on housing subsidies. The results suggest that lack of coordination has significant effects on prices and supply of houses, housing developers’ profits, and buyers’ surplus.

Estoppe right there

Examines the House of Lords judgment in Cobbe v Yeoman's Row Management Ltd on whether an experienced property developer was entitled to relief on the basis of proprietary estoppel for the cost of obtaining planning permission to demolish an existing property and build new houses under a non-binding oral agreement. Sets out two requisite conditions needed when deciding whether estoppel existed. Considers whether unconscionability was a separate element in making a claim for proprietary estoppel. [From Legal Journals Index]

Second Welland Canal - Book 1, Survey Map 10 - St. Catharines

Survey map of the Second Welland Canal created by the Welland Canal Company along the western edge of the Town of St. Catharines. Although not labelled, the Second Welland Canal can be seen running through the map along with its tow path, which is located on the southwestern edge of the waterway. The surveyors' measurements and notes can be seen in red and black ink and pencil. Local area landmarks are identified and include streets and roads (ex. Ontario Street and Road to Hamilton), Artesian Mineral Well, Dr. Mack's Artesian Well, Stephenson House Mineral Well and Gas Works, New Brewery, Old Brewery, Welland House Mineral Well, L. Shickluna's Shipyard, Vinegar Manufactory, Merritt's Covered Race, Mitchels Wharf, Sail Loft, an office, a tavern, two barns, a boathouse, a structure belonging to T. Nihan (or P. Nihen), and some store houses. Properties and property owners of note are: Concession 6 Lot 20, William H. Merritt, E. S. Adams, William Chace, Jacob Hainer, J. Taylor, and J. P. Merritt.

Transferring ownership of public housing to existing tenants: a mechanism design approach

This paper explores situations where tenants in public houses, in a specific neighborhood, are given the legislated right to buy the houses they live in or can choose to remain in their houses and pay the regulated rent. This type of legislation has been passed in many European countries in the last 30-35 years (the U.K. Housing Act 1980 is a leading example). The main objective with this type of legislation is to transfer the ownership of the houses from the public authority to the tenants. To achieve this goal, selling prices of the public houses are typically heavily subsidized. The legislating body then faces a trade-off between achieving the goals of the legislation and allocating the houses efficiently. This paper investigates this specific trade-off and identifies an allocation rule that is individually rational, equilibrium selecting, and group non-manipulable in a restricted preference domain that contains “almost all” preference profiles. In this restricted domain, the identified rule is the equilibrium selecting rule that transfers the maximum number of ownerships from the public authority to the tenants. This rule is preferred to the current U.K. system by both the existing tenants and the public authority. Finally, a dynamic process for finding the outcome of the identified rule, in a finite number of steps, is provided.

Ranking of interventions to reduce dwelling overheating during heatwaves

Extreme weather events, including heatwaves, are predicted to increase in both frequency and severity over the coming decades. Low house building rates and a growing population mean there is a need to adapt existing dwellings. Research presented here uses dynamic thermal simulation to model the effect of passive heatwave mitigating interventions for UK dwellings. Interventions include a range of additions and modifications to solar shading, insulation and ventilation. Results are presented for typical end and mid terrace houses, with four orientations, two occupancy profiles and using weather data from the 2003 heatwave. Results show the effectiveness of interventions that reduce solar gains through the building fabric, such as external wall insulation and solar reflective coatings. Internal wall insulation is shown to be less effective and can increase the overheating problem in some cases. Control of solar gains through glazing, using shutters and fixed shading, are also effective, particularly for south, east and west-facing rooms. Results are also presented which demonstrate how it is possible to select combinations of interventions that both eliminate overheating and reduce space heating energy use. The cost of interventions is also considered in the final analysis.

Allozyme diversity in Australian rainbow trout, Oncorhynchus mykiss

Rainbow trout, Oncorhynchus mykiss (Walbaum), were first introduced into Australia over 100 years ago, and forms the basis of important recreational inland fisheries and an aquaculture industry in south-eastern Australia. This paper investigates the genetic variation within and between samples of Australian rainbow trout using allozyme electrophoresis. The levels of genetic diversity within Australia do not show marked differences from those observed in hatchery and wild populations from throughout North America, New Zealand and South Africa, but there is evidence for the loss of some rare alleles during translocation from California to Australia via New Zealand. No appreciable difference in genetic diversity was apparent between hatchery and self-sustaining wild populations of rainbow trout from mainland Australia. However, significant differences in allelic frequencies were observed, with consistent genetic differences between Victorian and New South Wales samples most likely reflecting state-based hatchery and stocking policies.

150 years of democracy? The case of New South Wales

New South Wales has a rich history of parliamentary democracy. As the oldest of the Australian States, it has provided a microcosm of the evolution of modern British-style democracy from the ‘hustings’ of the early colonial to the harbour views of the contemporary politicians’ offices. New South Wales’ political history is also rich with experimentation. The early introduction of the secret ballot, payment for members, the abolition of plural voting, and adult suffrage are well known. Although it needs to be recognized that it followed slightly behind that ‘ Paradise of Dissent’ South Australia on all those features.

Equally fascinating is the role of the Labour Party, whose campaigning on behalf of adult suffrage and payment for Members is fairly well known. Less known, but of great interest, were its activities on behalf of electoral reform, political accountability and easier enrolment and voting, particularly for ‘ itinerants’ at a time when its political base was in the rural workforce. New South Wales Labour was significant for its decision to stand alone, in contrast with its Victorian and New Zealand counterparts, which threw in their lot with the Progressives.

The cost of housing : more than just dollars

Australians were recently awarded the dubious honour of building the largest homes in the world. Our new homes are now seven percent larger than those in the United States and nearly three times larger than those in the United Kingdom. At the same time, the price of an average residential property is now five times what it was 20 years ago. Although incomes have risen over the same period, they have not kept pace with rising house prices. In terms of disposable income, the cost of housing has almost doubled. While traditional housing affordability is measured in terms of house prices and incomes, a broader and more encompassing perspective also indicates that we can no longer ‘afford’ to build houses as we have done in the past. The environmental impact of modern Australian housing is significant. Australians have resisted the need for increased urban density as their capital city populations grow and new houses have been built on the outskirts of the existing cities, encroaching on the greenwedge and agricultural lands, destroying and degrading existing fauna and flora. The houses built have increased carbon emissions because of their size, embodied energy and reliance on the motor car. This paper discusses the environmental ‘affordability’ of current Australian housing and argues that this must be considered alongside traditional affordability criteria so that a more holistic approach to the issues is adopted.

Perceptions of corporate social responsibility amongst immigrant entrepreneurs

Purpose – The purpose of this paper is to explore the understanding of the term corporate social responsibility (CSR) by Sri Lankan immigrant entrepreneurs in Australia. It also seeks to investigate the importance the entrepreneurs place on CSR, their understanding of stakeholders, the types of CSR activities undertaken by them, and the issue of social capital.

Design/methodology/approach – Data were collected through in-depth semi-structured interviews with Sri Lankan entrepreneurs based in Victoria, Australia.

Findings – The interviewees were aware of the term CSR but, nevertheless, had different interpretations of its meaning. However, CSR was considered important and all the interviewees were, in some way, involved in CSR activities and also had a good understanding of the importance of their stakeholders. Findings also highlighted the significance attached to social capital by the entrepreneurs such as informal relationships and trustworthiness which build the intangible attributes of CSR. The present findings can be attributed to immigrant entrepreneurs behaving partly to adapt to the host country, by changing their beliefs, values, traditions and partly by being influenced by their home country culture as found in the extended part of this current study.

Research limitations/implications – This paper addresses gaps in the fields of both CSR and immigrant entrepreneurship literature. However, the small sample size is a limitation and further research is required in order to generalize the findings.

Originality/value – It is important to have an understanding of the interpretation of social responsibility amongst immigrant entrepreneurs. Despite the steadily growing number of Sri Lankan immigrant entrepreneurs and their potential impact on the Victorian and Australian socio-economic context, this area remains under-researched. This paper addresses this gap in the literature and makes an attempt to provide insight into this area that can be used as a catalyst for future research.

Engaging rural communities in health care through a paramedic expanded scope of practice

Introduction: This article explores how community engagement by paramedics in an expanded scope role contributes to both primary health care and to an overall improved emergency response capacity in rural communities. Understanding how expanded scope paramedics (ESP) can strengthen community healthcare collaborations is an important need in rural areas where low workforce numbers necessitate innovation.

Methods: Four examples of Australian rural ESP roles were studied in Tasmania, New South Wales, South Australia and Victoria to gather information on consistent elements that could inform a paramedic expanded scope model. Qualitative data were collected from semi-structured interviews with key stakeholders and organisational documents. Thematic analysis within and across cases found community engagement was a key element in the varied roles. This article relies heavily on data from the Victorian and Tasmanian case studies because community engagement was a particularly strong aspect of these cases.

Results: The ESP in the case studies increased interactions between ambulance services and rural communities with an overall benefit to health care through: increasing community response capacity; linking communities more closely to ambulance services; and increasing health promotion and illness prevention work at the community level. Leadership, management and communication skills are important for paramedics to successfully undertake expanded scope roles.

Conclusion: ESP in rural locations can improve health care beyond direct clinical skill by active community engagement that expands the capacity of other community members and strengthens links between services and communities. As health services look to gain maximum efficiency from the health workforce, understanding the intensification of effort that can be gained from practitioner and community coalitions provides important future directions.