2 research outputs found

    A genre analysis of abstracts on organic farming in the context of ESP teaching

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    Diese Masterarbeit hat sich zum Ziel gesetzt eine Genreanalyse mit Hilfe eines Korpus von landwirtschaftlichen Abstracts durchzuführen um lexiko-grammatikalische Merkmale sowie die typische Struktur dieser Textsorte aufzuzeigen. Außerdem soll diese Genreanalyse im Kontext des englischen Fachsprachenunterrichts in berufsbildenden höheren Schulen, welche sich auf landwirtschaftliche Ausbildung spezialisieren, betrachtet werden. Die Texte aus dem Korpus stammen alle aus dem Bereich biologischer Landwirtschaft. Verschiedene Arten von Wörtern wurden untersucht, unter anderem Vokabular das häufig in den Texten verwendet wird (high-frequency words), akademisches Vokabular und Fachausdrücke sowie weniger häufig vorkommende Wörter (low-frequency words). Außerdem wurden Kollokationen, Wörter die mit großer Wahrscheinlichkeit zusammen erscheinen, analysiert. So wurde versucht das Vokabular auszumachen welches typisch für dieses Genre in diesem Fachgebiet ist. Die Untersuchung der Struktur der Texte (Move analysis) erfolgte manuell. Zuletzt wurde der Zusammenhang zwischen einer solchen Analyse und dem englischen Fachsprachenunterricht untersucht. Die Analyse der verschiedenen Wortarten zeigte, dass, obwohl Allgemeinvokabular den größten Anteil hat, diese Texte zu einem hohen Grad akademisch sind. In der Analyse wurden außerdem wichtige Kollokationen gefunden, die als wesentlich für landwirtschaftliche Abstracts angesehen werden können. In der Move Analysis wurde aufgezeigt, dass die Abstracts zwei verschiedenen Mustern folgen. 110 Texten beinhalten fünf Abschnitte, nämlich Einführung, Zielsetzung, Methoden, Resultate und Fazit. Die restlichen 10 Texte folgen einem anderen Muster. Zusätzliche wurden wichtige Phrasen und Kollokationen für die jeweiligen einzelnen Moves gefunden. Allgemein kann gesagt werden, dass eine Analyse, wie sie in dieser Arbeit durchgeführt wurde, ein brauchbares Instrument für verschiedene ESP Situationen darstellt, auch im Zusammenhang mit landwirtschaftlichen Schulen.A corpus-based genre analysis is conducted in this study order to reveal lexico-grammatical features as well as the genre structure of abstracts in the field of agriculture. In addition, the context of ESP teaching in higher secondary schools focusing on agriculture is investigated. A corpus of 120 abstracts from the field of organic farming was compiled. Different types of vocabulary including high-frequency words, academic and technical vocabulary and low-frequency words were analysed. In addition, concordances, collocations and clusters were investigated in order to present genre-specific as well as genre-functional formulaic language. Finally, the analysis was linked to ESP teaching. The analysis showed that general service words make up the largest part of the vocabulary. However, it was also found that the texts in the corpus are very academic in nature. In addition, important collocations and clusters were found which are constitutive of the genre of agricultural abstracts. The results of the move analysis showed that the texts mainly consist of obligatory as well as core moves. In addition, the abstracts follow two general patterns. 110 abstracts consist of five moves (introduction, purpose, methods, results, and conclusion) while 10 of the texts show a different pattern. Besides analysing the structure of the abstracts, phrases and clusters were detected that are commonly used in individual moves.It can be concluded that a corpus analysis as conducted in this study can be a useful tool for different target settings in ESP, especially in insufficiently studied areas such as agricultural education in Austria

    Thermal behaviour of yttrium aluminate glasses studied by DSC, high-temperature X-ray diffraction, SEM and SEM–EDS

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    DSC, SEM-EDS, XRD and high-temperature XRD analysis was used to study thermal and crystallization behaviour of yttrium aluminate glasses prepared in the form of microspheres. The glasses YA-E (eutectic composition from the pseudo-binary system Al2O3-Y3Al5O12) and YA-G (a composition identical to the stoichiometric Y3Al5O12 (YAG) phase) were prepared by combination of the Pechini method with flame synthesis. The resulting microspheres were largely amorphous, but contained traces of yttrium-aluminium garnet as the main crystalline phase embedded in the yttrium aluminate glass matrix. Crystallization of the YAG phase was observed as the dominant exothermic process on DSC curves. From the DSC records, the basic thermal characteristics of the matrix glass, i.e. T (g) (glass transition temperature), T (x) (onset of crystallization peak temperature), T (f) (temperature of the inflection point of the crystallization peak) and T (p) (maximum of crystallization peak temperature), were determined. HT XRD experiments in the temperature interval 750-1200 A degrees C and isothermal HT XRD experiments at 932, 998 and 1200 A degrees C with 6-h holding time were also performed. Crystallization experiments at lower temperatures 932 A degrees C (YA-E) and 915 A degrees C (YA-G) were conducted to study phase development in a low-temperature region. Crystallization experiments at higher temperatures (1000, 1300 and 1500 A degrees C) with maximum holding time of 6 h were performed to study crystallization of alpha-Al2O3 in the eutectic system. The SEM and SEM-EDS examination of polished cross sections of crystallized microspheres revealed slow volume crystallization of the YAG phase in the AY-E glass. Eventually, polycrystalline microspheres with fine-grained microstructure were prepared after 6-h treatment at 1500 A degrees C
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