Literatur als System

Werber, Niels

doi:10.1007/978-3-322-91664-8

Cited by 58 publications

(2 citation statements)

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“…The subsequent development is based on a composite membrane having a non-porous thin selective layer above the surface of a porous support layer [11]. The composite membrane offers high permeability and mechanical strength, while selectivity is determined by a non-porous thin layer [12], [13]. Polyethersulfone (PES) is selected as membrane support because it has high mechanical strength, chemical and thermal selectivity, and excellent film formation [14]- [16].…”

Section: Introductionmentioning

confidence: 99%

Modelling and Optimization of Alginate-Chitosan Concentration towards Tensile Strength Pervaporation Membrane based Polyethersulfone-Biopolymer by Using Response Surface Methodology

Hendrawan¹,

Putri²,

Hawa³

et al. 2020

Int. J. Adv. Sci. Eng. Inf. Technol.

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Some outstanding features in the use of pervaporation technology are light, low maintenance, low energy consumption, and eco-friendly. The optimization of membrane mechanical properties is vital to determine the strength of the membrane against the force which comes from outside and is unfortunately destructive, one of which is tensile strength. The purpose of this research is to find out the best combination of alginate and chitosan concentration, which produces polyether sulfone-biopolymer based pervaporation membrane with optimal tensile strength. Several membrane compositions have been prepared and varied in a way to obtain optimal membranes. The modeling and optimization method, which was applied by the researcher is the Response Surface Methodology (RSM). In the Central Composite Design (CCD) design, the low level included for both factors is 2% concentration, and the high level is 4% concentration, with a total of 13 experimental designs. The result of the suggested model is a quadratic model. While on the optimization result, the optimum solution result is from a combination of 3.25% alginate and 2.91% chitosan concentration, which yield tensile strength value of 0.24 kgf/cm 2 with a desirability value of 0.84. The validation results are withdrawn from the three test samples resulted in an average tensile strength of 0.25 kgf/cm 2 where this value differed 1.2% from the predicted results. The validation results are considered acceptable because the value is still within the acceptable error threshold or below 5%.

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Section: Introductionmentioning

confidence: 99%

Modelling and Optimization of Alginate-Chitosan Concentration towards Tensile Strength Pervaporation Membrane based Polyethersulfone-Biopolymer by Using Response Surface Methodology

Hendrawan¹,

Putri²,

Hawa³

et al. 2020

Int. J. Adv. Sci. Eng. Inf. Technol.

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“…Ele mesmo constata uma progressibilidade das ciências versus uma "certa paralisação do campo artístico" (1968a: 309), pois à arte "é imposto um limite não superável e que provavelmente foi alcançado há muito tempo, impossível de ser estendido " (1968a: 309). A partir desta diferenciação do campo artístico reavaliamos, através de publicações como as de Koethe (1999), Compagnon (1999), Werber (1992) e de Luhmann (1980de Luhmann ( , 1981de Luhmann ( e 1984, os conceitos de autonomia ("arte pela arte"), do belo e do sublime como referências destacadas na discussão sobre o estado e as origens da arte moderna.…”

Section: Introductionunclassified

Kant: autonomia ou estética compromissada?

Korfmann¹

2004

Pandaemonium ger. (Online)

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This article analyses the influence of Kant on conceptions and definitions of modern literature and art in publications by Lyotard, Kothe, Weber and Luhmann. It is argued that central issues in these publications, such as artistic autonomy, the sublime and the concept of L'art pour l'art, are adopted directly from Kant's philosophical work and still serve as paradigms in the discussion of origin and status of modern social structure and its art production.Keywords: Kant; Autonomy; Modern Art.Zusammenfassung: Der Artikel beschäftigt sich mit dem Einfluss von Kant auf Konzepte der modernen Kunst, wie sie etwa in Arbeiten von Lyotard, Kothe, Weber oder Luhmann formuliert werden. Zentrale Punkte sind die Begriffe der Autonomie, des Erhabenen sowie L'art pour l'art als Paradigmen innerhalb der Diskussion über Beginn und Entwicklung der künstlerischen und sozialen Moderne.

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Von Texten, Menschen und Medien

Neuhaus¹

2003

Literatur Und Journalismus

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Literatur als System

Cited by 58 publications

References 0 publications

Modelling and Optimization of Alginate-Chitosan Concentration towards Tensile Strength Pervaporation Membrane based Polyethersulfone-Biopolymer by Using Response Surface Methodology

Modelling and Optimization of Alginate-Chitosan Concentration towards Tensile Strength Pervaporation Membrane based Polyethersulfone-Biopolymer by Using Response Surface Methodology

Kant: autonomia ou estética compromissada?

Von Texten, Menschen und Medien

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