Sökning: "Ulf Flodin"

Hittade 2 avhandlingar innehållade orden Ulf Flodin.

1. 1. Epidemiological aspects on malignant diseases in childhood

   Författare :Ann Charlotte Dreifaldt; Lennart Hardell; Ulf Flodin; Örebro universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; childhood cancer; incidence rates; persistent organic pollutants; breast-feeding; MEDICINE; MEDICIN; Oncology; Onkologi; Medicin; Medicine; Onkologi; Oncology;

   Sammanfattning : The trends of malignant diseases in children aged 0 to 14 years, reported to the Swedish Cancer Registry 1960–1998 (n=9 298) were analyzed. The most common diagnoses were leukemia, 29.7%, tumors of the central nervous system (CNS), 27.6%, and lymphomas, 10. LÄS MER

3. 2. On the running-in of gears

   Författare :Sören Sjöberg; Ulf Olofsson; Anders Flodin; KTH; []
   Nyckelord :gears; gear manufacturing; running-in; surface topography; contact area ratio; manganese phosphate; Mechanical engineering; Maskinteknik;

   Sammanfattning : The general trend in gear industry, today, is an increased focus on gear transmission efficiency. Gear transmission efficiency losses arise from loaded and unloaded gear contacts, seals, lubricant and bearings. One way of minimising the losses is to lower the lubricant viscosity. This will reduce the speed dependent losses. LÄS MER