Sökning: "Cotton"

Visar resultat 16 - 20 av 70 avhandlingar innehållade ordet Cotton.

  1. 16. Influence of herbivore-induced changes in host plants on reproductive behaviours in Spodoptera littoralis : herbivore-plant interactions

    Författare :Ali Zakir; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Insect herbivores orient towards host plants using sensory cues and olfaction plays a major role, especially in nocturnal herbivores, during selection of host plants suitable for feeding, mating and oviposition. Plants defend themselves from herbivore feeding by producing volatiles as well as non-volatiles chemical compounds. LÄS MER

  3. 17. Recognition and modulation of olfactory signals in the noctuid moth spodoptera littoralis

    Författare :Ahmed Saveer; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Food, mates and host plants are essential resources for plant-feeding insects. Optimal resource localization that fulfils the physiological need and reproductive goals of an insect is of utmost importance. LÄS MER

  4. 18. The inter- and intramolecular selectivity of the carbonate radical anion in its reactions with lignin and carbohydrates

    Författare :Magnus Carlsson; KTH; []
    Nyckelord :;

    Sammanfattning : In the present thesis, the effects of the carbonate radicalanion on lignin and cellulose were investigated.Kinetic measurements by pulse -radiolysis were performed tostudy the reactions of simple lignin and cellulose models withthe carbonate radical anion. LÄS MER

  5. 19. Functional hybrid bionanomaterials based on titanium dioxide and cellulose, possessing antibacterial and drug delivery properties

    Författare :Olga Galkina; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The present work focuses on development and investigation of new functional hybrid nanomaterials based on titania nanoparticles and cellulose, possessing an important set of practical properties. The study includes two parts: first, nanocrystalline TiO₂ hydrosols produced by low-temperature sol-gel synthesis were successfully applied for cotton fabric modification. LÄS MER

  7. 20. Betulin-modified cellulosic textile fibers with improved water repellency, hydrophobicity and antibacterial properties

    Författare :Tianxiao Huang; Monica Ek; Mats Johansson; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Antibacterial; Betulin; Biorefinery; Cellulose; Grafting; Coating; Hydrophobicity; Textile; Water repellency; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Sammanfattning : Textiles made from natural sources, such as cotton and flax, have advantages over those made of synthetic fibers in terms of sustainability. Unlike major synthetic fibers that have a negative impact on the environment due to poor biodegradability, cotton cellulose is a renewable material. LÄS MER