Search for dissertations about: "DCB"

Showing result 1 - 5 of 15 swedish dissertations containing the word DCB.

  1. 1. Dynamic principles in craniofacial surgery. Expander elements in craniofacial surgery

    Author : Fredrik Gewalli; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Scaphocephaly; Brachycephaly; Dynamic cranioplasty; Pi-procedure; DCB; Expander elements; Distraction; Mental development; ICP; Cephalometry; Cephalic index;

    Abstract : Lannelongue & Lane described strip removal of ossified skull sutures in craniosynostosis in the 1890s. More complex osteotomies with bone grafting were developed during the 1960s. Dynamic techniques, utilizing force to direct the growing brain for skull reshaping was introduced by Jane 1978 with the p-plasty for sagittal synostosis. READ MORE

  2. 2. Discovery and Characterization of a Novel Microtubule Associated Protein Involved in Cellulose Biosynthesis

    Author : Alex Selvanayagam Rajangam; Tuula Teeri; Anne-Mie Emons; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; MAP; unknown gene; cellulose biosynthesis; Populus; microtubule; DCB; Bioengineering; Bioteknik;

    Abstract : Cell walls are a distinct feature of plants and their chemical constituents, cellulose, hemicelluloses and lignin, are economically valuable. Plant fibres rich in cellulose, which mainly resides in their cell wall, are traditionally used in making paper and textiles. READ MORE

  3. 3. Comprehensive numerical analysis of stress state in adhesive layer of joint including thermal residual stress and material non-linearity

    Author : Nawres Jabar Al-Ramahi; Roberts Joffe; Janis Varna; Lars Mikkelsen; Luleå tekniska universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ENGINEERING AND TECHNOLOGY; Single-lap adhesive joint; Double-lap adhesive joint; Unbalanced bi-material DCB; Residual thermal stresses; Finite element method; Crack path; Crack closure; Polymeric Composite Materials; Polymera kompositmaterial;

    Abstract : The main objective of this work is to improve understanding of the stress state in the adhesive layer of bonded joints and identify key parameters which govern performance of adhesive joints. This information is crucial for the prediction of the failure initiation and propagation with the further estimation of the durability and strength of adhesively bonded structures. READ MORE

  4. 4. Notch sensitivity and bridging laws in glass mat composites

    Author : Johan Lindhagen; Luleå tekniska universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Polymera konstruktionsmaterial; Polymeric Composite Materials;

    Abstract : The fracture behaviour of polymeric random glass mat reinforced composites was investigated. Such materials exhibit very large damage zones with fibre bridging. The damage zone sizes are often comparable with the specimen dimensions, which precludes the use of linear elastic frac-ture mechanics (LEFM). READ MORE

  5. 5. High Performance Bio-based Composites : Mechanical and Environmental Durability

    Author : Newsha Doroudgarian; Luleå tekniska universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Polymera konstruktionsmaterial; Polymeric Composite Materials;

    Abstract : The presented work is a part of the ongoing effort on the development of high performance bio-based composites with enhanced durability, under static and dynamic mechanical loading including the exposure to elevated humidity. The impact of relative humidity on the performance of cellulosic fibers (natural and regenerated), bio-based resins and their composites was studied. READ MORE