Search results

In the 1947 article, The Mathematics of the Ideal Villa, Colin Rowe famously compared the spatial and geometric properties of buildings by two architects: Palladio and Le Corbusier. Many of Rowe's observations in this article have since been extensively debated but not rigorously tested. This paper examines Rowe's proposition that Palladio's villa plans possess greater intelligibility and cellularity than Le Corbusier's villa plans.

Two established computational techniques, axial line analysis and isovist analysis, are adopted in this paper to quantify and compare the properties of intelligibility and cellularity in the four villas that Rowe used to construct his argument: Malcontenta, Rotunda, Stein, and Savoye.

While acknowledging methodological limitations, the results of this paper do not support Rowe's claims, but they do lead to a unique quantitative examination of spatial configurations and properties of four famous villa plans.

This is the first paper to quantitatively examine Rowe's claims that Palladian villas possess greater intelligibility and cellularity than Le Corbusier's villas.

Frank Lloyd Wright's famous house Fallingwater has been the subject of enduring scholarly debate centred on the allegedly clear parallels between its form and that of its surrounding natural setting. Despite these claims being repeated many times, no quantitative approach has ever been used to test this argument. In response, this paper uses a quantitative method, fractal analysis, to measure the relationship between the architecture of Fallingwater and of its natural surroundings.

Using fractal dimension analysis, a computational method that mathematically measures the characteristic visual complexity of an object, this paper mathematically measures and tests the similarity between the visual properties of Fallingwater and its natural setting. Twenty analogues of the natural surroundings of Fallingwater are measured and the results compared to those developed for the properties of eight views of the house.

Although individual results suggest various levels of visual similarity or difference, the complete set of results do not support the claim that the form of Frank Lloyd Wright's Fallingwater exhibits clear visual similarities to the surrounding landscape.

In addition to testing a prominent theory about Wright's building for the first time, the paper demonstrates a rare application of fractal analysis to interpreting relations between architecture and nature.

The architectural profession faces an increasingly complex ethical landscape. In recent decades, the ethical foundations for architecture – formally defined in professional codes of conduct and reflected in regulatory frameworks – have expanded to incorporate imperatives derived from environmental and social responsibilities. The present research examines how these expanding ethical expectations are reflected in, and supported by, recent research about architectural ethics.

Analysis is based on a systematic review of recent research (2002–2023) focussing on ethical values and associated behaviours in the architectural profession. The review identifies 37 research articles (from a starting set of 2,483 articles), which are analysed empirically and then qualitatively to draw out views around three types of ethical behaviour. The paper then discusses how these findings align thematically with the evolving ethical needs of architectural practitioners (as defined in the professional codes of ethics and conduct of the RIBA in the UK, AIA in Australia and the AIA in the USA).

While business ethics remains the focus of past research, there has been a rise in research about ethics and social and environmental factors. The content of professional codes reflects this shift, setting the conditions for architects to aspire to increased expectations of environmental and social responsibility.

This article undertakes the first systematic review of recent research about architectural ethics and its alignment with the content of contemporary professional codes. Organised thematically, recent research about ethical values and associated behaviours can offer guidance for the evolving ethical needs of architects.

The independence and well-being of people with dementia can be significantly influenced by the design of the physical environments around them. Several assessment tools exist to evaluate the dementia design quality of existing residential aged care facilities but, to date, none have been formally identified as suitable for use during the design process. This paper aims to examine the feasibility of re-purposing existing post-occupancy tools for use during the design process, while mapping the influence of design stages on resulting dementia design quality.

Literature searches identified audit tools for residential aged care settings. After reliability screening, three tools were analysed in-depth, mapping their suitability for use during the design process.

The study confirmed that existing tools can be re-purposed for design stage use and identified that early design stages have a larger influence on overall dementia design quality than previously thought.

Non-English language publications were not reviewed. Searches may not have identified other existing audit tools for residential care environments.

The ability to assess proposals at key stages of design may help improve the dementia design quality of future residential aged care environments – potentially enhancing the lives of ever-larger numbers of people with dementia.

According to the authors’ knowledge, this is the first known paper to consider formal design-stage evaluation of dementia design quality and the first to identify the relative influence of key stages of design on the resulting dementia design quality.

This study aims to get the essential data of the solubility and diffusion coefficient of gas in jet fuel for appropriately designing a kind of on-board inert gas generation system.

A test apparatus based on pressure–decay method was constructed to measure solubility and diffusion coefficient of gas in liquid. The test apparatus and method were verified via measurement of solubility and diffusion of CO₂ in the pure water.

The solubility of CO₂ and O₂ in RP-3 jet fuel with the temperature from 253 to 313 K under three various pressures were measured and compared with theoretical value calculated by a relative density method provided in the standard of ASTM D2780-92, and the deviation is within 10 per cent. The diffusion coefficients of CO₂ and O₂ in RP-3 jet fuel are determined by monitoring the gas pressure in a hermetic cell versus time with the temperature from 253 to 333 K. The measured diffusivity-temperature relation can be well fitted through the Arrhenius equation for engineering applications. The obtained correlation can be used to predict the diffusion coefficient of CO₂ and O₂ in RP-3 jet fuel under a wide temperature range.

The semi-empirical correlation of solubility and diffusion coefficient in RP-3 jet fuel obtained from the experimental data could be used to support the design of an inert gas generation system.

There are no essential data of solubility and diffusion of CO₂ and O₂ in RP-3 jet fuel; therefore, it is fatal if the quantity and rate of mass transfer of CO₂ and O₂ in RP-3 jet fuel must be assessed, e.g. during the design of green on-board inert gas generation system.

Nowadays, the most important challenge in mechanical engineering, power engineering and electronics is a development of effective cooling systems for heat-generating units. Taking into account this challenge, this study aims to deal with computational investigation of thermogravitational energy transport of pseudoplastic nanoliquid in an electronic chamber with a periodic thermally producing unit placed on the bottom heat-conducting wall of finite thickness under an influence of isothermal cooling from vertical side walls.

The control equations formulated using the Boussinesq approach, Ostwald–de Waele power law and single-phase nanofluid model with experimentally based correlations of Guo et al. for nanofluid dynamic viscosity and Jang and Choi for nanofluid thermal conductivity have been worked out by the in-house computational procedure using the finite difference technique. The impact of the Rayleigh number, nanoadditives concentration, frequency of the periodic heat generation from the local element and thickness of the bottom solid substrate on nanoliquid circulation and energy transport has been studied.

It has been found that a raise of the nanoadditives concentration intensifies the cooling of the heat-generating element, while a growth of the heat-generation frequency allows reducing the amplitude of the heater temperature.

Mathematical modeling of a pseudoplastic nanomaterial thermogravitational energy transport in an electronic cabinet with a periodic thermally generating unit, a heat-conducting substrate and isothermal cooling vertical surfaces to identify the possibility of intensifying heat removal from a heated surface.

This paper aims to increase our understanding of the nature and role of communities within organizations with regard to innovation management, the drivers of community innovation and macro-processes of community innovation management.

The authors first use an inductive qualitative technique to analyze data gathered from a UK university to build up the concept of communities of innovation and then refine the concept of communities of innovation by contrasting it to the more established literature on communities of practice. Finally, with the aid of existing literature on collaborative innovation and the innovation processes, the authors induce from the data the drivers of community innovation and the three macro-processes of community innovation management.

The research findings suggest communities of innovation play a central and pivotal role in contributing to the generation of innovations within organizations. Drivers of innovation included corporate culture, money and time, intellectual property management, motivation, knowledge facilitators, activists and maintenance and opportunities to interact. The three macro-processes of community innovation management are identified as divergence management, gateway management and convergence management.

As this is an exploratory research into communities of innovation, all the 11 communities of innovation analyzed belong to ABC University. It is necessary to expand on this research within the education industry, as well as into other industries to further test the reliability of the findings in this paper.

Business executives who have a better understanding of communities of innovation, the drivers of community innovation and the macro-processes of community innovation management will be better able to promote innovation within their organizations.

Governments that have a better understanding of communities of innovation, the drivers of innovation and the macro-processes of community innovation management will be better able to promote innovation within their countries.

To the best of the authors’ knowledge, this is one of the first research studies attempting to understand communities of innovation and the macro-processes of community innovation management.

This paper aims to study the mathematical modeling of passive cooling systems for electronic devices. Improving heat transfer is facilitated by the correct choice of the working fluid and the geometric configuration of the engineering cavity; therefore, this work is devoted to the analysis of the influence of the position of the heat-generating element and the tilted angle of the electronic cabinet on the thermal convection of a non-Newtonian fluid.

The area of interest is a square cavity with two cold vertical walls, while the horizontal boundaries are adiabatic. An element of constant volumetric heat generation is placed on the lower wall of the chamber. The problem is described by Navier–Stokes partial differential equations using dimensionless stream function and vorticity. The numerical solution is based on the developed computational code using the finite difference technique and a uniform rectangular grid.

The key conclusions of this work are the results of a detailed analysis of streamlines and isotherms, the average Nusselt number and profiles of the average heater temperature. It was found that more intensive cooling of the heat-generating element occurs when the cavity is filled with a pseudoplastic fluid (n < 1) and not inclined (α = 0). The Rayleigh number of Ra = 10⁵ and the thermal conductivity ratio of k = 100 are characterized by the most positive effect.

The originality of the research lies in both the study of thermal convection in a square chamber filled with power-law fluid under the influence of a volumetric heat production element and the analysis of the influence of geometric and thermophysical parameters characterizing the considered process.

This research study aims to explore sociocultural factors such as privacy and gender segregation as they relate to the spatial perception of women's spaces within the vernacular Qatari household, and the activities, habits and practiced culture of its inhabitants.

This analysis utilizes the Space Syntax methodology to examine a sample of vernacular courtyard houses with respect to space connectivity, conducting an analytical exploration of the role of women based on the system of activities.

The findings shed light on the spatial complexity and sensitivity of the Qatari household as it reflects the prevailing sociocultural imperatives in Qatari urbanities, including the country's capital, Doha.

This research study thus reinforces the importance of traditional residential architecture in conserving Qatar's distinctive architectural identity, rooted in its sociocultural attributes.

Sociocultural features such as privacy and gender segregation are among the most prominent factors influencing the spatial form of vernacular courtyard houses in the Arabian Gulf country of Qatar.

It is argued that within a typical vernacular Qatari household, women's spaces are the least connected (most segregated) areas, due mainly to the influence of privacy norms and gender segregation on the spatial configuration of the house.