7832 research outputs found
Sort by
Pieces of You Are Here
No full textPieces of You Are Here includes silver gelatin photographs, cyanotypes, and digital prints on silk, installed alongside new sculptural forms such as crystalline structures grown from cyanotype chemistry on ceramic surfaces.
A significant focal point within this exhibition was a photograph of an archaeological artefact housed within The McManus museum in Dundee: a small terracotta tile excavated from the nearby Carpow Roman Fort in Abernethy that bears a paw print made by a dog who, centuries ago, walked across this clay surface as it was drying. Macintyre has been drawn to this fragment of our past, intrigued by the way it draws on specific ideas about time and historical record. What does it mean for us to consider an object such as this in a museum or gallery? How are fleeting, accidental moments in time now captured by raw materials in the world around us? Macintyre draws as much upon poetic imagination as historical fact to explore these questions in Pieces of You Are Here
Natural Ventilation and Particulates Dispersion in Single-room Dwellings An investigation of retrofit vents in informal settlements in Nairobi
No full textPoor indoor air quality is associated with various ill-health conditions; and appropriate natural vent ilation is recognized as an effective means to keep both buildings and occupants healthy. Natural ventilation is crucial where people spend most of their time in indoors with pollutants. The purpose of the work reported in this paper was to examine the potential impact of retrofitting options of vents on improving indoor air quality by removing particulates produced during cooking. It focussed on single-room dwellings in informal settlements in Nairobi, Kenya. The dwellings are occupied by extremely low-income householders who typically live and sleep in the same room that they cook and dine. The majority of the dwellings are windowless. Where present, windows are rarely opened, either because they are occluded by crowded items, or due to insecurity, or to keep out mosquitoes. We used Computational Fluid Dynamics (CFD) to simulate air flow and particle dispersion, focusing on PM2.5. The results show that retrofits for natural ventilation can effectively reduce indoor particulates. The effectiveness is highly related to the type, size and location of retrofit vents, and to the fresh air inlet velocity