Sökning: "repellence"

Hittade 5 avhandlingar innehållade ordet repellence.

  1. 1. Movement patterns and displacement of a soil insect

    Författare :Elna Nilsson; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; attraction; repellence; fatty acid; Ecology; Ekologi; alarm; autoregressive model; autocorrelation; random walk; Protaphorura armata; Collembola; migration; dispersal; movement; displacement;

    Sammanfattning : Movement and dispersal are important determinants of the spatial distribution and persistence of animal populations in a heterogeneous environment. I studied the small-scale movement pattern of a soil-living insect, Protaphorura armata (Collembola) by using a video-equipment. LÄS MER

  3. 2. Surface-modified wood based on silicone nanofilaments for improved liquid repellence

    Författare :Haiyan Yin; Magnus Wålinder; Agne Swerin; Andra Dédinaité; Lars Wadsö; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wood; acetylated wood; surface modification; superamphiphobicity; superhydrophobicity; plastron; silicone nanofilaments; multicycle Wilhelmy plate method.; Trä; acetylerat trä; ytmodifiering; superamfifobicitet; superhydrofob; plastron; silikon-nanofilament; multicykel Wilhelmy-metod; Building Materials; Byggnadsmaterial;

    Sammanfattning : The increasing awareness of sustainability motivates the development of building materials from renewable resources. The requirements of wood-based products with improved durability, for example, an enhanced liquid repellence, is still a challenge. LÄS MER

  4. 3. Surface modification of birch and acetylated birch wood by silicone nanofilaments

    Författare :Haiyan Yin; Magnus Wålinder; Agne Swerin; Andra Dédinaité; Jan Van den Bulcke; KTH; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Acetylated wood; surface modification; superhydrophobicity; plastron; wetting; silicone nanofilaments; UV irradiation; mold resistance; blue stain.; Acetylerat trä; ytmodifiering; superhydrofobicitet; plastron; vätning; silikon-nanofilament; UV-bestrålning; mögelresistens; blånad.; Building Materials; Byggnadsmaterial;

    Sammanfattning : The increasing awareness of sustainability motivates the development of building materials from renewable resources. The requirements of wood-based products with improved durability, for example, enhanced liquid repellence and UV and biological resistance, are still a challenge. LÄS MER

  5. 4. Super liquid-repellent surfaces - interactions and gas capillaries

    Författare :Mimmi Eriksson; Per M. Claesson; Agne Swerin; Marie Skepö; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; superhydrophobicity; superamphiphobicity; wetting; capillary forces; AFM; LSCM; superhydrofobicitet; superamfifobicitet; vätning; kapillärkrafter; AFM; LSCM; Kemi; Chemistry;

    Sammanfattning : Super liquid-repellent surfaces have attracted a lot of interest in recent years. In addition to the large scientific interest there are many potential technological applications ranging from self-cleaning materials to microfluidic devices. LÄS MER

  7. 5. The mechanisms of edge wicking in retortable paperboard

    Författare :Helena Tufvesson; Lars Wågberg; Agne Sewerin; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cellulose and paper engineering; Cellulosa- och pappersteknik;

    Sammanfattning : This thesis reports on an investigation of the mechanisms of edge wicking in retortable paperboard. Retortable board is used for packaging preserved food, a process which requires that the package and its contents be sterilised by exposure to high temperature steam for up to three hours. LÄS MER