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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
21

L'Inde vécue. De l'objet à la société, les français à Pondichéry (1770-1778) / India experienced. From material object to society, the French in Pondicherry (1700-1778)

Le Doudic, Kévin 14 January 2016 (has links)
Les recherches sur les compagnies françaises des Indes orientales connaissent depuis trois décennies un nouvel élan. Si aujourd’hui les volets économiques, administratifs et politiques du fonctionnement de cette aventure mercantile et de la présence française dans l’océan Indien sont bien connus, le cadre de vie quotidien de ses acteurs dans les comptoirs l’est beaucoup moins. Cette thèse propose de se concentrer sur la société française de Pondichéry et sur son environnement quotidien en prenant comme point de départ sa culture matérielle. À partir des archives notariales françaises de l’Inde au XVIIIe siècle, il est possible de redessiner cette société ultramarine et de saisir bien plus que le simple environnement matériel. Les modalités de l’implantation et de l’adaptation des Européens en Inde, peuvent ainsi être précisées. Ensuite, la structure proprement matérielle est identifiable : les approvisionnements des possessions françaises de l’océan Indien qui définissent la consommation, les choix et les logiques d’aménagement intérieur, etc. Enfin, l’environnement culturel dans lequel les européens évoluent dans les comptoirs de l’Inde est accessible, notamment grâce à l’étude du degré d’ancrage des individus dans la culture de l’océan Indien. Ont-ils cherché à préserver leur culture européenne, ou se sont-ils « indianisés » ? Des différences sont-elles visibles selon les époques, les catégories sociales et professionnelles étudiées ? Pour répondre à ces questions, les collections des musées européens et asiatiques, ainsi que le patrimoine architectural des comptoirs français de l’Inde du XVIIIe siècle, viendront enrichir et compléter les sources d’archives. / Over the last three decades research on the French East India Company has seen a new impetus. If today the economic, administrative and political functioning components of this mercantile adventure and the French presence in the Indian Ocean are well known, the milieu quotidian of its players in the trading posts are less such. The present thesis focuses on French society in Pondicherry and on its daily environment, material culture being its starting point. Using the French notarial archives of India in the XVIII century, it is possible to redraw this ultramarine society and to understand much more than the simple material environment. The methods of the establishment and of the European adaptation in India can thus be clarified. Afterwards, the strictly material structure is identifiable: the supply of French possessions of the Indian Ocean, which define the consumption, the logic and choices of internal organization, etc. Finally, the cultural environment in which Europeans evolve in the Indian trading posts is accessible, notably as a result of studying individual’s degree of integration into the Indian Ocean culture. Did they seek to preserve their own European culture or were they ‘indianised”? Are there some differences noticeable according to the period, social categories and professionals studied? To answer these questions, the European and Asian museum’s collections, as well as the French trading posts architectural patrimony of India in the XVIII century, will enhance and complete the archive sources.
22

Effect of substrate types on fermentation of mixed cultures to produce volatile fatty acids / Effekt av substrattyper för fermentering av blandade kulturer för att producera flyktiga fettsyror

Sehgal, Jayant January 2022 (has links)
Innovativa teknologier, produkter och processer krävs på grund av marknadens ökande behov av bioprodukter med låga koldioxidavtryck. Idén att producera flyktiga fettsyror via biologiska processer, främst genom anaerob fermentering med blandkulturer, har återupplivats på grund av den omfattande exploateringen av oljeresurser. Målet för denna studie var att utvärdera kvaliteten och livskraften för produktion av flyktiga fettsyror från enkla substrat. Flyktiga fettsyror-generering undersöktes i ett satsvis syrafermenteringssystem för tre enkla substrat (olja, stärkelse, och gelatin). Vi visade att ett initialt surt pH var fördelaktigt för acidogenes och den totala genereringen av flyktiga fettsyror för alla tre substraten. Den högsta produktionseffektiviteten av flyktiga fettsyror uppnåddes och flyktiga fettsyror genomgick evolutionär utveckling med blandad kulturfermentering som kördes vid ett initialt surt pH på 5,0. 7933,08 mg COD/L smörsyra producerades från stärkelse vid pH 3,87 på dag 15, vilket var den högsta nivån. Smörsyra och ättiksyra var de dominerande produkterna i det initiala sura pH-värdet 5. Alla tre substraten i batch-reaktorer visade högt produktionsutbyte av ättiksyra och smörsyra. Vid lågt initialt pH var propionsyra den vanligaste syratypen i olja. / Innovative technology, products, and processes are required because of the market's rising need for bioproducts with low carbon footprints. The concept of producing volatile fatty acids (VFAs) via biological processes, primarily through anaerobic mixed culture fermentation, has been revived because of the extensive exploitation of oil resources. The goal of this study was to evaluate the quantity and efficiency of VFA production from simple substrates. The generation of VFA was examined using a batch type acid fermentation system for three simple substrates (oil, starch, and gelatin). We showed that an initial acidic pH was advantageous for acidogenesis and the total generation of VFAs for all three substrates. The VFA production efficiency was achieved and underwent evolutionary development with mixed culture fermentation (MCF)  tests running at an initial acidic pH of 5.0. 7933.08 mgCOD/L butyric acid were produced from starch at pH 3.87 at day 15, which was the highest level. Butyric and acetic acids were the predominant products in the initial acidic pH 5. All the three substrates in reactors showed high VFA production yield of acetic acid and butyric acid. At low initial pH, propionic acid was the most prevalent acid type in oil.

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