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Analiza funkcionalnosti programa RAA (Risk assessment accelerator) : diplomsko delo univerzitetnega študija Varstvoslovje
Žiga Primc, 2012, undergraduate thesis

Abstract: Izdelava ocene ogroženosti je danes v podjetjih ena ključnih nalog, saj na ugotovitvah ocene vodstvo organizacije snuje odločitve. Ker je čas eden pomembnejših dobrin v poslovnem svetu je pomembna tudi hitrost dela, zato poznamo danes številna orodja za izdelavo ocene tveganja, ki izdelavo poenostavijo in pospešijo. Dve orodji, ki to omogočata sta RAA (Risk Assessment Accelerator) in ARAT (Astec Risk Assessment Tool) slovenskih podjetij Netis d.o.o. in Astec d.o.o. Diplomska naloga je sestavljena iz dveh delov, kjer je prvi teoretični drugi pa praktični del. V prvem je bila pregledana domača in tuja literatura na področju upravljanja s tveganji, analize tveganja, standardih o informacijski varnosti, orodjih za izdelavo ocene ogroženosti in drugo. V drugem delu smo napravili pregled funkcionalnosti in orodji med sabo primerjali, kar je pokazalo prednosti in slabosti obeh orodij ter posledično področja katera bi bilo možno izboljšati. Namen in cilji diplomske naloge so bili doseženi, kot tudi potrjene vse tri predpostavke. Aplikaciji smo primerjali v štirih kategorijah, ki so uporabniška prijaznost, vizualni izgled, dostopnost aplikacije in funkcije aplikacije. Rezultati so podani na tabelarni način, po vnaprej določeni kriterijski lestvici, opravili pa smo tudi SWOT analizo obeh orodij. Tako RAA kot ARAT sta primera kvalitetnega izdelka, ki pa imata še prostora za izboljšave. Namen diplomske naloge ni iskati napake, ampak možnosti za izboljšave omenjenih orodij.
Keywords: organizacije, tveganja, upravljanje s tveganji, ocena tveganja, programi, diplomske naloge, Risk assessment acelerator, RAA
Published: 11.10.2012; Views: 1325; Downloads: 171
.pdf Full text (6,23 MB)

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Fuzzy Logic Model for the performance benchmarking of sugar plants by considering best available techniques
Damjan Krajnc, Miro Mele, Peter Glavič, 2007, original scientific article

Abstract: This paper deals with the problem of performance benchmarking of traditional beet sugar plants, by considering Best Available Techniques (BAT) for beet sugar production, as determined by the Integrated Pollution Prevention and Control (IPPC) Directive. A Fuzzy Logic Model, based on fuzzy set theory, was constructed for this purpose, in order to compare the performances of sugar plants within the sector's best standards, as expressed in the Reference Document on BAT. The effectiveness of the model was tested in the case study,in which three sugar plants were benchmarked against the BAT regarding the consumption of energy, water, raw materials and the production of wastes, wastewater, by-products and the main product. The model was recognized as helpful for the benchmarking needs of sugar plants. In addition, by integrating BAT Reference Document analysis into the model, it provides IPPC permitting authorities with an objective method and uniform BAT benchmarks to manage permitting process.
Keywords: chemical processing, beet sugar production, sugar industry, clean technologies, performance benchmarking, IPPC Directive, technology performance assessment, fuzzy set theory, best available techniques, IPPC permitting process
Published: 31.05.2012; Views: 1603; Downloads: 49
URL Link to full text

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Item modeling concept based on multimedia authoring
Janez Stergar, Andrija Šulić, Marko Brvar, 2008, original scientific article

Abstract: In this paper a modern item design framework for computer based assessment based on Flash authoring environment will be introduced. Question design will be discussed as well as the multimedia authoring environment used for item modeling emphasized. Item type templates are a structured means of collecting and storing item information that can be used to improve the efficiency and security of the innovative item design process. Templates can modernize the item design, enhance and speed up the development process. Along with content creation, multimedia has vast potential for use in innovative testing. The introduced item design template is based on taxonomy of innovative items which have great potential for expanding the content areas and construct coverage of an assessment. The presented item design approach is based on GUI's - one for question design based on implemented item design templates and one for user interaction tracking/retrieval. The concept of user interfaces based on Flash technology will be discussed as well as implementation of the innovative approach of the item design forms with multimedia authoring. Also an innovative method for user interaction storage/retrieval based on PHP extending Flash capabilities in the proposed framework will be introduced.
Keywords: computer testing, computer based assessment, multimedia authoring, inovative item design, GUI, MySQL, e-training
Published: 31.05.2012; Views: 1103; Downloads: 23
URL Link to full text

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How to compare companies on relevant dimensions of sustainability
Damjan Krajnc, Peter Glavič, 2005, original scientific article

Abstract: Dozens of frameworks of sustainability assessment that focus on the performance of companies have been suggested by now. They propose using numerous sustainability indicators, which are generally measured in very different units. While it is important to assess sustainability with several indicators, it may sometimes be difficult to make comparisons among companies based on a large number of performance measurements. This paper presents a model for designing a composite sustainable development index that depicts performance of companies along all the three dimensions of sustainability-economic, environmental, and societal. In the first part of thepaper, the procedure of calculating the index that would enable comparisonsof companies in specific sector regarding sustainability performance is presented. However, the emphasis of the paper is on the second part, where the effectiveness of the proposed model is illustrated with a casestudy in which two companies from specific sector are compared regarding their sustainability performance.
Keywords: chemical industries, sustainable development, sustainability indicators, composed index, sustainability assessment
Published: 01.06.2012; Views: 1301; Downloads: 58
URL Link to full text

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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: 1664; Downloads: 48
URL Link to full text

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Assessment of the load-bearing capacity of a primary pipeline
Nenad Gubeljak, Jelena Vojvodič-Tuma, Borivoj Šuštaršič, Jožef Predan, Maks Oblak, 2007, original scientific article

Abstract: High-alloyed Cr-Ni-based two-phase stainless steel (SS) cast alloys are commonly used in nuclear power plants. The mechanical equipment in these facilities can contribute to a reduction in its resistance to stable crack growth as a result of extended operating times and high temperatures. The toughness of these materials strongly depends on their delta (▫$/delta$▫) ferrite content, which spinodally decomposes into two phases with different ratios of Cr and Ni at a relatively low (slightly above 300 °C) temperature. This temperature is similar to the operating temperature of the vital parts, for example, the coolant system. The formation of two phases with the same crystalstructure but different lattice parameters causes internal elastic stresses that result in a hardness increase and an impact-toughness decrease. The result is an increased risk of crack formation in the stress-concentration zones such as the critical regions of different welded joints (e.g. "L, T, K and X" shapes). The values of the critical stress intensity factor change according to its position along the crack contour. Therefore, the aim of our study was to assess the influence of the materials' changes on the crack extension and the decrease of the primary pipeline's bearing capacity by taking account of the increased temperature and time of operation for the given loading conditions. The SINTAP (European Structural Integrity Assessment Procedure) was used for this assessment.
Keywords: welding, welded joints, pipelines, fracture toughness testing, structure integrity assessment procedure
Published: 01.06.2012; Views: 982; Downloads: 44
URL Link to full text

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