24 research outputs found

    ACHIEVING VISUAL COMFORT IN UNIVERSITY EDUCATIONAL SPACES:A DESIGN FRAMEWORK FOR RESPONSIVE KINETIC SKIN

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    Achieving human comfort in a space is an architectural necessity. Feeling comfort is related to the sense organs network, such as the eyes, ears, nose, tactile sensors, heat sensors and brain. In fact, last few decades has witnessed the integration of many technologies and trends into the field of responsive architecture; among which kinetic architecture has been significant. Thus, the aim of this thesis is to achieve visual comfort in educational spaces in universities, while arguing that a responsive kinetic skin is to be an effective mean for achievement. That should help refreshing student and enhancing their educational spaces visually, by considering various factors, such as the light transmitted through the kinetic system and the colors of kinetic units. Consequently, student health will be enhanced mentally and psychologically. In the thesis, several kinetic skin alternatives will be simulated digitally, to choose one of them that will be applied and tested as a physical model (scale1/1) in one of the universities spaces. The outcome of this thesis is giving a framework for designers and architects to design responsive kinetic skin in universities respecting visual comfort of students. This framework will be presented through a graphical user interface (GUI) that can be easily used by architects

    Helical Propulsion in a Viscous Heterogeneous Medium

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    DIGITAL FRAMEWORK TO OPTIMIZE VISUAL COMFORT USING KINETIC FACADES

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    Visual comfort is one of many aspects of human comfort that should be considered in architectural spaces. Visual comfort is an architectural necessity and could be achieved and optimized in spaces through controlling facades’ opening. This could be achieved by applying kinetic facades, which is one of the trends in the field of responsive architecture. However, the research’ s aim is optimizing visual comfort using kinetic facades in educational spaces. This optimization will improve the environmental quality of the educational space. In this research architects will achieve easily more effective kinetic facades to have better visual comfort by enhancing daylight quantity and quality using luminous environmental parameters’ measurement tool. In this research a series of scripts will be applied on various kinetic facades’ alternatives. These scripts will be based on a relation between different daylight and kinetic parameters. Thus, the outcome is to develop an Add-on, as a digital plugin, that will be presented through a friendly Graphical User Interface (GUI)

    A continuum decorrelation of the variables; Application to multivariate regression

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    A continuum standardization, called alpha M-standardization, of a dataset whereby the variances of the variables and their correlations are gradually shaded off is proposed. It is tightly connected to the Mahalanobis distance. After investigating its properties, it is used to set up a continuum approach to predict one data set from another. It turned out that this continuum strategy is tightly linked to an approach called PLS power regression [1,2]. It is also shown that this strategy of analysis is broad enough to encompass PLS regression and redundancy analysis. An illustration on the basis of a two case studies is outlined

    Thermo-Economic Analysis of Combined Cycle MED-TVC Desalination System

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    AbstractIn the present work, thermo-economic model of a superstructure combined cogeneration power plant is studied. Engineering Equation Solver “EES” code is used to study the enhancement of the thermal performance, the environmental impact and the economics cost of the plant. Optimum design point for maximum production of power and water is obtained, through developing mathematical model of separate system, and combined cogeneration system, at different operating conditions. Also, economics model, including capital cost of each unit, fuel cost, operating and maintenance cost, is developed. It is concluded that, the combined cogeneration system can save about 20.6% of Total Annual Cost “TAC” compared with separate power and water production system. The cogeneration plant consists of Gas Turbine (GT), Heat Recovery Steam Generator (HRSG), Steam Turbine (ST) and Multi Effect -Thermo Vapor Compressor Desalination System (MED-TVC)

    Facades for Achieving Visual Comfort: High Performance Computing

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    Within the last few decades, many digital technologies have been integrated to the field of architecture. This in turn has developed a number of architectural trends based on these revolutionary changes. Kinetic skin is one of these trends that is directly related to visual performance and comfort, an important aspect. The feeling of comfort is related to the sense organs network; i.e. the eyes, ears, nose, tactile sensors, heat sensors and brain. Visual sensation is the most dominant one in human perception since the eye contains two thirds of the nerve fibers within human central nervous system.The use of kinetic facades for achieving visual comfort in spaces has been recently the subject of many researches, where various aspects have been explored. However, this paper will attempt to review these researches while identifying gaps and potential for future research

    Effect of Surface Coating of Paper on Measuring Spectral Values

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    The printing industry has become more development than before, as well as the challenges that related to quality and consistency of colors results, especially with the repetition of printing operations in the packaging field. The using of measurement devices is very important due to the many changes that occur on printing materials in general and on paper and inks in particular. And their were many sources of cellulose plants and other sources of paper manufacturing, as well as the entry of recycling operations in this industry , and also many producing companies are manufacturing paper with different technology in the world.Also there are a several companies producing inks and the development of the manufacture of chemical›s Pigment compounds and sources of oils, resins and other additives.All of that factors made it necessary and to use measurement devices, especially in the production of repeated printing to ensure the stability of results and quality control in each process.In this research we will highlight on the most important types of paper in general and especially the paper that used in this research .And we will print models of the fourteen basic colors of the Pan tone and will make measurements using the spectrophotometer to register and monitor the differences resulting from the different surface finishing of the paper coated - glossy/matt and uncoated.As well as registered the results and values of the difference between the print samples and Pantone.In this research, we will highlight on the colors deviations with the different surface finishing of the paper and fixed the other factors to identify the reasons that lead to the deviation of the results with the use of the same materials and equipment and using of different types of finishing surface of paper

    Investigation at the molecular level of soft cheese quality and ripening by infrared and fluorescence spectroscopies and chemometrics-relationships with rheology properties

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    International audienceTwelve traditional and 12 stabilised experimental soft cheeses were made according to a factorial design to two levels of dry matter (44% and 48%) and two fat on dry matter ratios (51% and 55%). Cheese samples were analysed using various methods to give physico-chemical data, uniaxial compression test data, emission spectra of tryptophan residues, excitation spectra of vitamin A, and the 900–1500, 2800–3000 and 1500–1700 cm−1 infrared regions. Common components and specific weights analysis showed that the common component 1 discriminating young and ripened cheeses explained 95%, 92%, 73% of the inertia of the 900–1500, 2800–3000 and 1500–1700 cm−1 infrared regions, respectively, and 51% of the rheology data. Common component 2 discriminating cheeses as a function of the technology explained 88%, 23% and 11% of the inertia of vitamin A spectra, chemical data and rheology data, respectively. The spectral patterns allowed molecular interpretations of the discrimination
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