Alunite is the most important non bauxite resource for alumina. Various methods have been proposed and patented for processing alunite, but none has been performed at industrial scale and no technical,operational and ...Alunite is the most important non bauxite resource for alumina. Various methods have been proposed and patented for processing alunite, but none has been performed at industrial scale and no technical,operational and economic data is available to evaluate methods. In addition, selecting the right approach for alunite beneficiation, requires introducing a wide range of criteria and careful analysis of alternatives.In this research, after studying the existing processes, 13 methods were considered and evaluated by 14 technical, economic and environmental analyzing criteria. Due to multiplicity of processing methods and attributes, in this paper, Multi Attribute Decision Making methods were employed to examine the appropriateness of choices. The Delphi Analytical Hierarchy Process(DAHP) was used for weighting selection criteria and Fuzzy TOPSIS approach was used to determine the most profitable candidates. Among 13 studied methods, Spanish, Svoronos and Hazan methods were respectively recognized to be the best choices.展开更多
This study presents a pictorial analysis of Portuguese advertisements from a visual semiotic perspective,particularly the symbolic attributive and suggestiveprocesses.Aiming toelucidate the relationship between genrea...This study presents a pictorial analysis of Portuguese advertisements from a visual semiotic perspective,particularly the symbolic attributive and suggestiveprocesses.Aiming toelucidate the relationship between genreand gender,the study explored advertising genre,masculinity in advertisements,and the antithesis of man as primary theoretical concerns.The data consisted of five pictures from Portuguese advertisements.The analysis suggests that advertisements are a textual arena where not only genre but also gender is constructed and modified in collaboration.The image of the antithesis of man coexisting with the one of normative masculinity in the five Portuguese advertisements indicates that genre and gender are mutually and simultaneously fluid,with their boundary often blurred.That advertisements are often prone to changes in their function to attract customers implies new and evolving presentation forms of genre and gender.The combination of new and conventional images of masculinity,as shown in the analysis,impacts social and linguistic practices,particularly the fact that traditional norms of defining genre and gender,despite their resemblant quality,might be occasionally challenged or reconstructed inlate-modern culture.展开更多
文摘Alunite is the most important non bauxite resource for alumina. Various methods have been proposed and patented for processing alunite, but none has been performed at industrial scale and no technical,operational and economic data is available to evaluate methods. In addition, selecting the right approach for alunite beneficiation, requires introducing a wide range of criteria and careful analysis of alternatives.In this research, after studying the existing processes, 13 methods were considered and evaluated by 14 technical, economic and environmental analyzing criteria. Due to multiplicity of processing methods and attributes, in this paper, Multi Attribute Decision Making methods were employed to examine the appropriateness of choices. The Delphi Analytical Hierarchy Process(DAHP) was used for weighting selection criteria and Fuzzy TOPSIS approach was used to determine the most profitable candidates. Among 13 studied methods, Spanish, Svoronos and Hazan methods were respectively recognized to be the best choices.
文摘This study presents a pictorial analysis of Portuguese advertisements from a visual semiotic perspective,particularly the symbolic attributive and suggestiveprocesses.Aiming toelucidate the relationship between genreand gender,the study explored advertising genre,masculinity in advertisements,and the antithesis of man as primary theoretical concerns.The data consisted of five pictures from Portuguese advertisements.The analysis suggests that advertisements are a textual arena where not only genre but also gender is constructed and modified in collaboration.The image of the antithesis of man coexisting with the one of normative masculinity in the five Portuguese advertisements indicates that genre and gender are mutually and simultaneously fluid,with their boundary often blurred.That advertisements are often prone to changes in their function to attract customers implies new and evolving presentation forms of genre and gender.The combination of new and conventional images of masculinity,as shown in the analysis,impacts social and linguistic practices,particularly the fact that traditional norms of defining genre and gender,despite their resemblant quality,might be occasionally challenged or reconstructed inlate-modern culture.
