Search for dissertations about: "Cost function"

Showing result 1 - 5 of 596 swedish dissertations containing the words Cost function.

  1. 1. Cost Optimization of Aircraft Structures

    Author : Markus Kaufmann; Dan Zenkert; Malin Åkermo; Per Wennhage; Erik Lund; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; aircraft structures; optimization; cost estimation; manufacturing cost; direct operating cost; multiobjective optimization; multidisciplinary optimization; composites; airframe design; Vehicle engineering; Farkostteknik;

    Abstract : Composite structures can lower the weight of an airliner significantly. Due to the higher process complexity and the high material cost, however, the low weight often comes with a significant increase in production cost. The application of cost-effective design strategies is one mean to meet this challenge. READ MORE

  2. 2. Cost of searching : probabilistic analysis of the self-organizing move-to-front and move -to-root sorting rules

    Author : Josefin Bodell; KTH; []
    Keywords : ;

    Abstract : Consider two (or more) users who request records in adatabase independently and with different frequencies. On arequest, the user's probability of calling a certain record iseither constant or changes deterministically in time. One userhas priority over the other(s) and rearranges the recordsaccording to seff-organizing rules. READ MORE

  3. 3. Cost/Weight Optimization of Aircraft Structures

    Author : Markus Kaufmann; Dan Zenkert; Frédéric Lani; KTH; []
    Keywords : Cost Weight Optimization; Weight Penalty; Direct Operating Cost; Composite Structures; Non-destructive testing; Finite element analysis FEA ; TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : Composite structures can lower the weight of an airliner significantly. The increased production cost, however, requires the application of cost-effective design strategies. Hence, a comparative value is required which is used for the evaluation of a design solution in terms of cost and weight. READ MORE

  4. 4. Defunctioning stoma in low anterior resection of the rectum for cancer : Aspects of stoma reversal, anastomotic leakage, anorectal function, and cost-effectiveness

    Author : Hannah Floodeen; Peter Matthiessen; Olof Hallböök; Neil Mortensen; Örebro universitet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; rectal cancer; low anterior resection; defunctioning stoma; stoma reversal; anastomotic leakage; anorectal function; costs; resources; Surgery; Kirurgi;

    Abstract : Rectal cancer is a common malignancy treated with surgical resection and curative intent in the majority of cases. One treatment option is low anterior resection (LAR) with preserved bowel continuity, often involving the formation of a temporary defunctioning stoma (DS). READ MORE

  5. 5. The treatment of back and neck pain. Cost and utility

    Author : Elisabeth K Hansson; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Keywords : cost of illness; cost-utility; disability; disc surgery; low back pain; neck pain; predictors; quality of life; return to work; sick-listing;

    Abstract : Aims To analyze the costs and effects of treatments used to return persons sick-listed due to back or neck problems to work, and to perform a cost-utility analysis of such treatments.Study population and Methods Included were men and women between the ages of 18 and 59 years who were employed but sick-listed (100 %) for at least 28 days due to a low back or neck diagnosis. READ MORE