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Poznan, Poland

The Poznań University of Economics is one of the most prestigious business schools in Poland.The Poznań University of Economics is a major academic institution in the western part of the country attracting students from many parts of Poland. It is the biggest and oldest business university in the region of Wielkopolska.The main campus of the university is located in Poznań, but the University offers its courses also in seven other locations situated within a distance of 30–100 km from Poznań . Wikipedia.


Cieszynska A.,Poznan University of Economics | Wisniewski M.,Poznan University of Technology
Hydrometallurgy | Year: 2012

Extractive recovery of palladium(II) from a hydrochloric acid solution with quaternary phosphonium salt: trihexyl(tetradecyl)phosphonium bis-(2,4,4-trimethylpentyl)phosphinate (Cyphos®IL 104) as a novel reagent in the presence of toluene has been investigated. Extraction data indicate that Cyphos®IL 104 is a very efficient and fast extractant. The increase in HCl concentration has negative influence on the extraction and 96 and 52% of palladium(II) ions can be effectively extracted with Cyphos®IL 104 from 0.1 and 3.0 M HCl, respectively. The equilibrium of palladium(II) extraction from aqueous 0.1 and 3.0 M HCl with this phosphonium ionic liquid is achieved after 5 min. Extraction of palladium(II) with Cyphos®IL 104 proceeds at the interface according to the anion-exchange mechanism. The best stripping solution from among the studied ones is 0.5 M NH 4OH. The feasibility of reuse Cyphos®IL 104 in several cycles of extraction-stripping process was also examined. Increase in temperature from 20 to 70 °C causes a negligible decrease in the palladium(II) extraction. The calculated values of ΔH°, ΔS° and ΔG° evidence that the extraction of palladium(II) with Cyphos®IL 104/toluene mixture is an exothermic reaction both from 0.1 and 3.0 M HCl solutions. © 2011 Elsevier B.V. All rights reserved. Source


Cieszynska A.,Poznan University of Economics | Wisniewski M.,Poznan University of Technology
Separation and Purification Technology | Year: 2011

The selectivity of palladium(II) extraction over nickel(II), copper(II), lead(II), iron(III), rhodium(III), ruthenium(III) and platinum(IV) with quaternary phosphonium salts: trihexyl(tetradecyl)phosphonium chloride (Cyphos®IL 101) and trihexyl-(tetradecyl)phosphonium bis-2,4,4- trimethylpentylphosphinate (Cyphos®IL 104), in the presence of toluene, has been investigated. Over 99% of palladium(II) can be effectively extracted with Cyphos®IL 101 and Cyphos®IL 104 from 0.1 M HCl in the presence of nickel(II), copper(II), lead(II), iron(III), rhodium(III) and ruthenium(III), while less than 10% of the other metals is transported to the organic phase. Separation of palladium(II) from platinum(IV) is not so effective; about 70-75% palladium(II) and 60-68% platinum(IV) is extracted. The selectivity of palladium(II) extraction over lead(II), iron(III) and platinum(IV) depends upon the acidity of aqueous solution and with increasing HCl concentration, the selectivity decreases. Palladium(II) can be separated from platinum(IV) successfully through stripping of palladium(II) from the loaded organic phase with 0.5 M ammonia solution. © 2011 Elsevier B.V. All rights reserved. Source


Flotynski J.,Poznan University of Economics
Procedia Computer Science | Year: 2014

The creation of interactive 3D presentations is typically a complex process involving activities related to various aspects of the content such as geometry, structure, space, appearance, logic and behaviour. However, widespread dissemination of interactive 3D content on the web requires flexible and efficient methods of content creation. In this paper, an approach to semantic modelling of 3D content is proposed. The proposed solution enables creation of content components and properties - reflecting different aspects of the content - with domain-specific ontologies and knowledge bases. The use of domain-specific knowledge liberates authors from going into details that are specific to 3D modelling, allows for content representation at different levels of abstraction and permits content creation by domain experts, who are not required to be IT-professionals. © 2014 The Authors. Source


Purpose The paper presents a discussion on the possibilities of using life cycle assessment (LCA) in identification and assessment of environmental aspects in environmental management systems based on the requirements of the international ISO14001 standard and the European Union EMAS regulation. Some modifications of LCA methodology are proposed in part 1, while the results of a review of environmental aspects for 36 organisations with implemented environmental management systems (EMS) are presented in part 2 of the article. Materials and methods The scope of the systems analysed in EMS and in LCA is different. This comes as the result of the fact that both ISO 14001 and EMAS are focused on an organisation contrary to ISO14040x, which are focused on a product life cycle. For the present work, this resulted in a need of adjusting the LCA methodology to EMS specificity, and vice versa. Some suggestions of such modifications are presented and discussed in the paper. Results A preliminary analysis was carried out on 36 organisations, which have EMS compliant with the ISO14001 or EMAS regulations. It has found a certain disproportion between input and output-related environmental aspects included in most of the analysed registers. The probable reasons for such disproportion could be the fact that the output-related environmental aspects are easier to manage by organisation and are often regulated by laws. Legal requirements are a significant criterion in the environmental aspects assessment. Discussion Based on the assessments carried out and the observations made, some conclusions have been drawn with regard to weaknesses and strengths and usefulness of LCA, as a result of a comparison to the traditional approaches used in EMS in the discussed area. LCA has evident advantages like: standardised methodology; possibility of inclusion of the quantitative information; presence of some methodological steps enabling the verification of the collected data; ability to generate of reproducible results. At the same time, the following potential weak points can be observed: a complexity of the procedure; higher time and cost requirements (especially related to an inventory phase); difficulties with assessing of environmental aspects with the qualitative character and these related to emergency situations; limitation related to the lack of relevant characterisation factors in the currently used LCIA methods. Conclusions LCA ought to be considered as a tool used for identification and assessment of environmental aspects in EMS. The listed limitations do not disqualify its suitability to be used. After certain simplifications, LCA seems to be a valuable alternative to the methodologies currently in use. © Springer-Verlag 2011. Source


Grant
Agency: Cordis | Branch: FP7 | Program: CP-IP | Phase: SSH-2010-1.2-1 | Award Amount: 9.98M | Year: 2011

The research programme will integrate diverse levels, methods and disciplinary traditions with the aim of developing a comprehensive policy agenda for changing the role of the financial system to help achieve a future which is sustainable in environmental, social and economic terms. The programme involves an integrated and balanced consortium involving partners from 14 countries that has unsurpassed experience of deploying diverse perspectives both within economics and across disciplines inclusive of economics. The programme is distinctively pluralistic, and aims to forge alliances across the social sciences, so as to understand how finance can better serve economic, social and environmental needs. The central issues addressed are the ways in which the growth and performance of economies in the last 30 years have been dependent on the characteristics of the processes of financialisation; how has financialisation impacted on the achievement of specific economic, social, and environmental objectives?; the nature of the relationship between financialisation and the sustainability of the financial system, economic development and the environment?; the lessons to be drawn from the crisis about the nature and impacts of financialisation? ; what are the requisites of a financial system able to support a process of sustainable development, broadly conceived?

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