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Blain M

Cognitive theory in relation to the ACTof drawing in electronically generated programs

Abstract: "Visual perception processes in sequential samples or fixated forms. Therefore, if we are to achieve unified perceptions there must be an integration of visual input over time. These sensations are not rich enough to mediate perception, we as perceivers must add to them. This elaboration of sensation involves inferential processes, semantic, semiotic and metaphorical associations, utilizing memory, habit, etc. This paper forms a basis for looking at these inputs as abstractions and how this enables a better understanding of: Cognition, visual and computational perception Computational descriptive rules Constructivist machine vision programs uses of Cognitive and visual theories within the mechanics of drawing. This examination expands towards exploring issues of presence and absence and the confusion of boundaries between inside and outside, hybridity, infiltration and dispersion, non-grounds and objects within."

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Full text: content.pdf (199,792 bytes) (available to registered users only)

Series: w78:2000 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.analysis (0.036182) class.roadmaps (0.021100) class.software development (0.012792)
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Permission to reproduce these documents have been graciously provided by Icelandic Building Research Institute. The assistance of the editor, Mr. Gudni Gudnason, is gratefully appreciated


Haghighat F

Development of a procedure to evaluate the air leakage distribution from fan pressurization test - validation of three airflow models

Abstract: A number of airflow models have been developed to assist the designer in the design of energy efficient and healthy built environment. The models range from very simple empirical algorithms to calculate the global airflow rate to sophisticated computerized fluid-dynamic techniques solving the Navier-Stokes equations. The multi-zone approach falls between these two extreme cases. This approach assumes that the interior of the building is divided into regions of differing pressures interconnected by leakage paths. The advantage of multi-zone models, besides being able to simulate infiltration in larger buildings, is that they can be used to calculate mass flow interactions between the different zones inside buildings as well as inside and outside. This knowledge is needed for the design of heating/cooling and ventilation systems. An essential part of the development of any computer model is its validation, and the essential information needed for validation of airflow models is the distribution of air leakage distribution. This paper first describes a methodology to distribute global air leakage of whole house and whole garage among cracks and gaps on exterior walls and roof, and report the validation of three airflow models. From the comparisons it can be seen that there are good agreement between the predictions made by the models and measured data, as well as between three models. Therefore, it can be concluded that the methodology for air leakage distribution is correct, and the performances of COMIS, CONTAM and ESP-r for predicting airflow rates in single-family house are similar.

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Full text: content.pdf (198,669 bytes) (available to registered users only)

Series: w78:2003 (browse)
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Permission to reproduce these papers has been graciously provided by the University of Auckland. The assistance of the editor who provided the full texts and the structured metadata, Dr. Robert Amor, is gratefully appreciated.


Melo, C.

Convection and Infiltration Modelling for the Built Environment

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Full text: content.pdf (1,208,888 bytes) (available to registered users only)

Series: w78:1986 (browse)
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