Sökning: "johan 2001"

Visar resultat 11 - 15 av 88 avhandlingar innehållade orden johan 2001.

  1. 11. Cardiovascular and respiratory effects of apnea in humans

    Författare :Johan Andersson; Funktionell zoologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; lung volume; breath-hold diving; Apnea; breath-holding; face immersion; cold stimulation; diving response; diving reflex; circulation; bradycardia; vasoconstriction; arterial blood pressure; cardiac output; spleen; respiration; splenic contraction; alveol; Physiology; Fysiologi; Respiratory system; Andningsorganen; Animal physiology; Djurfysiologi;

    Sammanfattning : This thesis deals with cardiovascular and respiratory effects of apneas in humans. During apnea (breath-holding), a number of interacting cardiovascular reflexes are initiated, and together these reflexes are called the “diving response”. LÄS MER

  3. 12. Numerical Studies of Wall Effects of Laminar Flames

    Författare :Johan Andrae; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; wall effects; laminar premixed flames; Chemkin; boundary layer flow; Chemical engineering; Kemiteknik;

    Sammanfattning : Numerical simulations have been done with the CHEMKINsoftware to study different aspects of wall effects in thecombustion of lean, laminar and premixed flames in anaxisymmetric boundary-layer flow. The importance of the chemical wall effects compared to thethermal wall effects caused by the development of the thermaland velocity boundary layer has been investigated in thereaction zone by using different wall boundary conditions, walltemperatures and fuel/air ratios. LÄS MER

  4. 13. Customer-Perceived Service-Quality and Technology-Based Self-Service

    Författare :Johan Anselmsson; Företagsekonomiska institutionen; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Nationalekonomi; economic policy; economic systems; economic theory; econometrics; Economics; service technology; customer characteristics; self-service technology; service marketing; Service quality; technology-based self-service; ekonometri; ekonomisk teori; ekonomiska system; ekonomisk politik; Management of enterprises; Företagsledning; management;

    Sammanfattning : This doctoral thesis deals with consumers’ attitudes towards serving them-selves with machines rather than being served by personnel. Its aim is to contribute to the theory of perceived service quality by providing a better understanding of customers’ attitudes and preferences when using technology-based self-service. LÄS MER

  5. 14. Epidemiological studies of host susceptibility in malignant lymphomas and colorectal cancer

    Författare :Johan Askling; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :tuberculosis; infectious mononucleosis; skin cancer; malignant lymphoma; inflammatory bowel disease; colorectal cancer; epidemiology; risk factors;

    Sammanfattning : The aim of this thesis was to investigate the role of host susceptibility in malignant lymphomas and colorectal cancer. Specifically, the associations between infection and malignant lymphomas, skin cancer and survival from subsequent cancer, and the association between inflammatory bowel disease, familial disease, and colorectal cancer were assessed using Swedish population-based and nation-wide registers. LÄS MER

  7. 15. Adaptive Cruise Control and Driver Modeling

    Författare :Johan Bengtsson; Institutionen för reglerteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Many vehicle manufacturers have lately introduced advance driver support in some of their automobiles. One of those new features is Adaptive Cruise Control DACCE, which extends the conventional cruise control system to control of relative speed and distance to other vehicles. LÄS MER