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Sustainability engineering education
Peter Glavič, 2006, original scientific article

Abstract: University sustainability education programmes in several European countries and the US have been compared to find common characteristics of the curricula in environmental science and engineering programmes. In particular, chemical engineering and applied chemistry departments have been focused here. Small, innovative European countries (Austria, Denmark, Finland, Ireland, Netherlands, Norway, Slovenia, Sweden, and Switzerland) have been in fore front. In bigger countries (France, Great Britain, Spain, and the US) programmes from some of the top 100 universities in Europe and the Americas have been considered, three from each country and seven from the US. The frequency of the courses in various groups and typical course titles are shown within each group. Evolution from pollution prevention courses to sustainability subjects is observed. The most employed textbooks are also provided.
Keywords: clean technologies, sustainable development, environmental protection, university sustainability education, curriculum
Published: 30.05.2012; Views: 1592; Downloads: 56
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Review of sustainability terms and their definitions
Peter Glavič, Rebeka Kovačič Lukman, 2007, original scientific article

Abstract: Terminology in the field of sustainable development is becoming increasingly important because the number of terms continues to increase along with the rapid increase in awareness of the importance of sustainability. Various definitions of terms are used by different authors and organizations, for example, green chemistry, cleaner production, pollution prevention, etc. The importance of this topic has stimulated research into the problems of clarifying ambiguity and classifying terms used in the sustainability field. This paper provides results of the literature survey and summarizes the definitions of the terms, focusing on the environmental engineering field. In some cases, it proposes an improved definition. A hierarchical classification of the terms and their relationships has been based on a layer format that is presented graphically.
Keywords: chemical process design, sustainability, environmental protection, cleaner production, terminology, definitions, classification
Published: 31.05.2012; Views: 1380; Downloads: 76
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Prediction of the ultraviolet protection of cotton woven fabrics dyed with reactive dystuffs
Polona Dobnik-Dubrovski, Miran Brezočnik, 2009, original scientific article

Abstract: Textile materials provide a simple and convenient protection against UV radiation. To assign the degree of UV radiation protection of textile materials, the Ultraviolet Protection Factor (UPF) is commonly used. This paper reports the effect of woven fabric construction (yarn fineness, type of weave, relative fabric density), the colour of bi-functional reactive dyestuffs, and Cibacron dyed fabrics on the ultraviolet protection of light summer woven fabrics. A predictive model, determined by genetic programming, was derived to describe the influence of fabric construction. Warp and weft densities, weave factor and CIELab colour components were taken into account by developing the prediction model for UPF. The results show very good agreement between the experimental and predicted values.
Keywords: ultraviolet protection factor, woven fabric construction, colour, prediction model, genetic programming
Published: 31.05.2012; Views: 1117; Downloads: 30
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Protection of copper and its alloys using corrosion inhibitor-literature review
Milorad V. Tomić, Miomir Pavlović, Milovan Jotanović, Regina Fuchs-Godec, 2010, original scientific article

Abstract: A review of the literature dealing with the electrochemical corrosion of copper and its alloys with purpose to find the most suitable inhibitor for its protection has been done. According to their chemical composition of corrosion inhibitors are divided into inorganic and organic inhibitors. Inhibition of alloying metals are possible (such as the addition of arsenic alloy components in brass, preventing its unzincanization). The paper reviews the theoretical basis of application of inhibitors to protect metals from corrosion as well as an overview of current research application of inhibitorsto protect copper and copper alloys. Benzotriazole (BTA) is most often used corrosion inhibitor for copper and its alloys in acidic and alkaline solution, because of its high inhibition efficiency. The lowest concentration of inhibitor for protection of copper in various solutions was 0.05%, and for the protection of copper in contact with steel is 0.1%. On the surface of copper and brass BTA forms a protective Cu-BTA film. However, BTA is like many other synthesized organic inhibitors is very toxic and if used invery small concentrations. It turnedout that the AETD, AETDA and PTAT good corrosion inhibitors of copper mixed type with the efficiency of inhibition increases with concentration. Due to the adverse effects on the environment, health and other bodies in recent times the focus of researchis transferred to the inhibiting action of biological molecules or mixtures of natural compounds called "Green inhibitors".
Keywords: corrosion inhibitors, protection of metals, inorganic inhibitors, organic inhibitors, alloys elements, green inhibitors
Published: 31.05.2012; Views: 1379; Downloads: 69
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Wowen fabric and ultraviolet protection
Polona Dobnik-Dubrovski, 2010, independent scientific component part or a chapter in a monograph

Keywords: UV radiation, sun protection, constructional parameters
Published: 31.05.2012; Views: 995; Downloads: 78
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A model for integrated assessment of sustainable development
Damjan Krajnc, Peter Glavič, 2005, original scientific article

Abstract: The focus of the paper is on consideration of how to use indicators to monitor sustainable development in a relevant and useful manner. Integrated information on sustainable development of a company is very essential for decision-making since it is very difficult to evaluate the performance of the company on the ground of too many indicators. The objective of the work was to design a model for obtaining a composite sustainable development index (ICSD) in order to track integrated information on economic, environmental, and social performance of the company with time. Normalized indicators were associated into three sustainability sub-indices and finally composed into an overall indicator of a company performance. This was applied by determining the impact of individual indicator to the overall sustainability of a company using the concept of analytic hierarchy process. The demonstration of the model used data for a case study company, Henkel, and a set of sustainable development indicators that were classified using the currently most widely accepted approach of the Global Reporting Initiative (GRI). Case study was used to measure ICSD and sustainability sub-indices of the company over the time interval of 6 years. Interpretation of results is given and the utility of ICSD with its relevance for decision-making is pointed out. Using a case study, the paper demonstrates that the model can be applied to deliver composite indicators of sustainability performance of companies.
Keywords: clean technologies, environmental protection, sustainable development, sustainability indicators, composite index, sustainability assessment, multiattribute decision-making
Published: 01.06.2012; Views: 1750; Downloads: 56
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Effects of woven fabric construction and color on ultraviolet protection
Polona Dobnik-Dubrovski, Darko Golob, 2009, original scientific article

Abstract: This paper presents the effects of woven fabric construction and color on the ultraviolet protection factor. Weave type, fabric tightness, cover factor, volume porosity and color of lightweight summer woven fabrics were observed in this research. Color had the biggest influence on the ultraviolet protectionfactor of fabrics, whereas woven fabric construction was essential when light pastel colored fabrics were used as ultraviolet protection. This work provides guidelines for engineering woven cotton fabrics with sufficient ultraviolet protection.
Keywords: color, UV protection, woven fabric construction
Published: 01.06.2012; Views: 1180; Downloads: 72
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Good quality printing with reactive dyes using guar gum and biodegradable additives
Reinhold Schneider, Sonja Šostar-Turk, 2003, original scientific article

Abstract: In printing with reactive dyes sodium alginates or synthetic thickeners are typically used as thickening agents to prevent unacceptable fabric handle. A new reactive printing process for reactive dyes on cellulosic textiles has been developed using natural thickening agents and environmental-friendly additives. Printing trials with guar gums have shown that the use of differentadditives can prevent fabric stiffness. These additives have no significant influence on rheology and colour strength but contributed to soft fabric handle even when guar gums were used as thickening agent. The use of additives and guar gum provide good quality prints with reduced wastewater pollution.
Keywords: textile printing, guar gum, additives, fabric handle, printing quality, ecology, environmental protection
Published: 01.06.2012; Views: 1545; Downloads: 56
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An algorithm for protecting knowledge discovery data
Boštjan Brumen, Izidor Golob, Tatjana Welzer-Družovec, Ivan Rozman, Marjan Družovec, Hannu Jaakkola, 2003, original scientific article

Abstract: In the paper, we present an algorithm that can be applied to protect data before a data mining process takes place. The data mining, a part of the knowledge discovery process, is mainly about building models from data. We address the following question: can we protect the data and still allow the data modelling process to take place? We consider the case where the distributions of original data values are preserved while the values themselves change, so that the resulting model is equivalent to the one built with original data. The presented formal approach is especially useful when the knowledge discovery process is outsourced. The application of the algorithm is demonstrated through an example.
Keywords: data protection algorithm, classification algorithm, disclosure control, data mining, knowledge discovery, data security
Published: 01.06.2012; Views: 1231; Downloads: 22
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