Sökning: "Per Jonsson"

Visar resultat 11 - 15 av 74 avhandlingar innehållade orden Per Jonsson.

  1. 11. Sheet metal trimming dies – characterisation methods of geometry and surface topography and the influence on wear

    Författare :Per Jonsson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; finish milling; wear measurement; functional surface; trimming dies; scale-sensitive fractal analysis; surface roughness; polishing; surface characterisation; high strength steel; tool wear;

    Sammanfattning : In recent years, the life cycle of car models has decreased from 7 to 5 years and the volume sizes are becoming shorter in the automotive industry. The increasing number of car models introduced to the market means that a fewer number of parts must pay the costs for the tool/die design and manufacturing. LÄS MER

  3. 12. Urban climate and air quality in tropical cities

    Författare :Per Jonsson; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : .... LÄS MER

  4. 13. Wrist and thumb joint postures and motions: Measurements using electrogoniometry and EMG

    Författare :Per Jonsson; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Wrist joint; Finger joint; Electromyography; Accuracy; Electrogoniometry; Input device; Information and communication technology; Mobile phone; Muscle activity; Posture; Thumb; Wrist;

    Sammanfattning : Correct measurements of the joints’ extreme postures, velocity and repetitiveness are important for studies of the origin of musculoskeletal disorders. Posture measurements of wrist and thumb joints may also provide insights into input device designs that may reduce effort and/or facilitate productivity. LÄS MER

  5. 14. Pelvic inflammatory disease and epithelial ovarian tumors

    Författare :Sarah Jonsson; Annika Idahl; Eva Lundin; Håkan Jonsson; Christer Borgfeldt; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Sammanfattning : Background: Epithelial ovarian cancer and borderline ovarian tumors consist of several histotypes in which high-grade serous carcinoma is the most common. The majority of epithelial ovarian tumors are considered to originate in the fimbriated end of the fallopian tubes. What initiates these tumors is far from completely understood. LÄS MER

  7. 15. Preventing problem gambling: Focus on overconsumption

    Författare :Jakob Jonsson; Per Carlbring; Ingrid Munck; Ståle Pallesen; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; gambling; problem gambling; prevention; overconsumption; responsible gambling; online self-test; ESEM; psychometric properties; predictive; longitudinal; CFA; gambling fallacies; reinforcers; personalized behavioural feedback; motivational interviewing; gambling expenditure; RCT; 12-month follow-up; spel om pengar; problematiskt spelande; prevention; överkonsumtion; spelansvar; online självtest; ESEM; psykometriska egenskaper; prediktiv; longitudinell; CFA; tankefällor om spel; psykologiska förstärkare; personifierad återkoppling på beteende; motiverande samtal; spelutgifter; RCT; 12-månaders uppföljning; Psychology; psykologi;

    Sammanfattning : A proportion of gamblers experience problems. The role of overconsumption in developing gambling problems is sparsely described in the literature and there is little scientific knowledge about the prevention of gambling problems. LÄS MER