A Colour Design Tool Based on Empirical Studies

A colour design tool targeted at both unskilled consumers and professional designers is currently under development, on the basis of psychophysical studies into semantic associations of colour, the cultural influences and colour harmony. From experimental results for single-colour associations, 3 underlying factors were identified: “warm-cool”, “heavy-light” and “active-passive”, which were found to agree well with those identified by earlier research. For colour-combination associations, an “additive property” of colour association was discovered: the semantic score of a colour combination can be determined by averaging semantic scores of each constituent colour in that combination. According to the experimental results, there were 4 general patterns of colour harmony: similarity in hue and chroma, difference in lightness, high lightness and the hue effects. While the proposed colour design tool is still in its development stage and has a number of shortcomings, the system is believed to provide practical assistance and support not only for unskilled users but also for designers. Keywords: colour design; colour harmony; colour association; cross-cultural study; e-shopping; colour decision-making; design process; psychophysical method</p

Visual Localisation of Mobile Devices in an Indoor Environment under Network Delay Conditions

Current progresses in home automation and service robotic environment have highlighted the need to develop interoperability mechanisms that allow a standard communication between the two systems. During the development of the DHCompliant protocol, the problem of locating mobile devices in an indoor environment has been investigated. The communication of the device with the location service has been carried out to study the time delay that web services offer in front of the sockets. The importance of obtaining data from real-time location systems portends that a basic tool for interoperability, such as web services, can be ineffective in this scenario because of the delays added in the invocation of services. This paper is focused on introducing a web service to resolve a coordinates request without any significant delay in comparison with the sockets

Prospectus of Full-Time Courses: 1988-89

Courses for Dublin Institute of Technology, Kevin Stree

Stepwise investment plan optimization for large scale and multi-zonal transmission system expansion

This paper develops a long term transmission expansion optimization methodology taking the probabilistic nature of generation and demand, spatial aspects of transmission investments and different technologies into account. The developed methodology delivers a stepwise investment plan to achieve the optimal grid expansion for additional transmission capacity between different zones. In this paper, the optimization methodology is applied to the Spanish and French transmission systems for long term optimization of investments in interconnection capacity

Evaluation of sensory parameters of grapes using near infrared spectroscopy

[EN] Grape seed and skin sensory parameters are important characteristics in making decisions concerning the optimal harvest time and producing high-quality red wines. The potential of near infrared spectroscopy to determine several sensory parameters of seeds and skins was evaluated. Taste (sourness), texture (astringency, tannic intensity, dryness and hardness), visual (colour) and olfactory (intensity and type of aroma) attributes were considered. Calibration models were performed by modified partial least squares regression. The differences between sensory analysis and NIRS analysis in external validation were lower in the case of seeds; they were between 4.5% for hardness and 8.7% for colour. For the skins, differences in external validation were between 9.8% for tannic intensity and 13.7% for astringency. The results obtained show that NIRS technology has considerable potential for predicting the above sensory attributes

Dublin Institute of Technology, Kevin Street : Calendar 1991/92

Calendar of academic year 1991/92. Contents include. DIT Courses, fee structures, undergrad programmes, short courses, fees, research & development, campus companies, student services, college regulations, Graduates and prizewinners, awards and external examiners, advisory services for prospective students, college structures, college staff and college library. Foreward by F.M. Brennan, President

Interface electronic system for measuring air acidity with optical sensors

Environmental acidity is a key parameter in Cultural Heritage conservation issues since it has a direct impact on degradation of both exposed and stored materials. Unfortunately, most of the acidity sensors now available are electrodes, which are not able to measure pH in gaseous phases and, therefore, are not suitable for measuring the environmental acidity of the air. This paper describes the development of an interface electronic system designed for the practical application and using of environmental acidity sensors prepared by the Sol–Gel procedure. These chemical sensors were investigated previously. They have optical response: their color changes reversibly depending on the pH of the surrounding environment (air). A simple portable unit with a wireless ZigBee interface has been designed and developed to measure the environmental acidity in museums, showcases, store and exhibition rooms and several Cultural Heritage buildings. Main achievements of the interface electronic system have focused, on the one hand, on conversion of the optical signal of sensors into an electric current and, on the other hand, on the computer interfacing to obtain quantitative data of environmental pH. Quantitative data are obtained through the calibration curve of sensors and the software designed for managing the whole system.The authors acknowledge partial funding of programs: Geomateriales (ref. S-2009/Mat-1629, Regional Government of Madrid), Consolider Ingenio 2010 (ref. TCP CSD2007-00058, Spanish Ministry of Science and Innovation), and project ref. HAR2012-30769 from the Spanish MINECOPeer reviewe

Determination of pectin content in orange peels by near infrared hyperspectral imaging

Pectin has several purposes in the food and pharmaceutical industry making its quantification important for further extraction. Current techniques for pectin quantification require its extraction using chemicals and pro- ducing residues. Determination of pectin content in orange peels was investigated using near infrared hyper- spectral imaging (NIR-HSI). Hyperspectral images from orange peel (140 samples) with different amounts of pectin were acquired in the range of 900–2500 nm, and the spectra was used for calibration models using multivariate statistical analyses. Principal component analysis (PCA) and linear discriminant analysis (LDA) showed better results considering three groups: low (0–5%), intermediate (10–40%) and high (50–100%) pectin content. Partial least squares regression (PLSR) models based on full spectra showed higher precision (R2 > 0.93) than those based on few selected wavelengths (R2 between 0.92 and 0.94). The results demonstrate the potential of NIR-HSI to quantify pectin content in orange peels, providing a valuable technique for orange producers and processing industries.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - Brasil (CAPES) – Finance Code 00

Application of UV-VIS-NIR spectroscopy in membrane separation processes for fast quantitative compositional analysis: a case study of egg products

Membrane separation technology is achieving broad applications in research, food and pharmaceutical industry. In this study, the application of UV-VIS-NIR spectroscopy to quantify the composition of the fractions obtained in a membrane separation process was assessed. An egg membrane filtration was employed as a case study to develop predictive models for a rapid determination of dry matter, protein and cholesterol composition in the feed and the fractions (retentate and filtrate). Whole egg plasma and egg yolk plasma obtained by centrifugation, and egg white were tangential filtrated using different pore size and membrane materials. Transmittance UV-VIS-NIR spectra showed significant differences between samples. Cholesterol, dry matter and proteins were predicted with UV-VIS-NIR spectroscopy with good statistical significance (RPDEV over 3). UV-VIS-NIR spectroscopy combined with chemometric tools demonstrates to be an efficient green method for composition analysis in the membrane filtration process. It is reliable, non-destructive, quick and environmentally friendly. Moreover, it can be applied on-line for real-time quantitative compositional analysisThis work was supported by the Spanish National Plan for Scientific and Technical Research and Innovation. A University Professor Education grant (FPU 16/05128) by the Spanish Ministry of Education, Culture and Sport to author Gema Puertas is gratefully acknowledgedS

Prospectus: 1985-86

Courses for Dublin Institute of Technology, Kevin Stree