Sökning: "knots"

Visar resultat 11 - 15 av 64 avhandlingar innehållade ordet knots.

  1. 11. The effect of cross grain and knots on the tensile strength of Pinus sylvestris 1

    Författare :Girma Kifetew; []
    Nyckelord :Forestry and Wood Technology; Skog och träteknik;

    Sammanfattning : .... LÄS MER

  3. 12. Computed tomography of sawlogs : knot detection and sawing optimization

    Författare :Erik Johansson; Johan Carlson; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Träteknik; Wood Technology;

    Sammanfattning : Branches on trees introduce defects on sawn timber called knots. By scanning sawlogs using computed tomography, knots can be detected and accounted for so that the sawing process can be optimized with respect to outgoing product value. LÄS MER

  4. 13. Projective Links and Their Invariants

    Författare :Maciej Mroczkowski; Oleg Viro; Jozef Przytycki; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Algebra and geometry; Real projective space; skein modules; Homfly polynomial; Kauffman polynomial; descending link diagram; Algebra och geometri; Algebra and geometry; Algebra och geometri;

    Sammanfattning : This thesis consists of two papers about knots and links in the real projective space RP3. We present an algorithm to unknot diagrammatically knots and links in RP3. We extend two classical polynomial invariants of links in R3 to links in RP3. LÄS MER

  5. 14. Robot-assisted laparoscopic surgery for cervical cancer

    Författare :Petur Reynisson; Lund Obstetrik och gynekologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; cervical cancer; surgery; radical hysterectomy; trachelectomy; economy; hospital cost; survival; and recurrence;

    Sammanfattning : Cervical cancer is the third most common cancer in women worldwide and the fourth leading cause of cancer death. In Western countries, it is the 10th most common cause of cancer death. Cervical cancer often affects young women (< 40 years) who have not finished childbearing. Robot assistance is the latest development in laparoscopic surgery. LÄS MER

  7. 15. Computed Tomography and Fingerprint Traceability in the Wood Industry

    Författare :Erik Johansson; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Träteknik; Wood Technology;

    Sammanfattning : The purpose of the work described in this thesis was to develop techniques based on non-invasive measurements of logs and sawn timber that would increase the profitability of the wood industry in general and sawmills in particular. The work has two main focus areas: computed tomography (CT) scanning of logs and traceability of wood products. LÄS MER