Search for dissertations about: "disadvantages"

Showing result 6 - 10 of 305 swedish dissertations containing the word disadvantages.

  2. 6. IMPROVED SUPPLY OF DISTRICT HEAT TO HYDRONIC SPACE HEATING SYSTEMS

    Author : Patrick Lauenburg; Energihushållning; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; low return temperature; natural circulation; District heating; hydronic space heating;

    Abstract : The studies presented in this thesis concern hydronic space heating systems connected via heat exchangers to a district heating network: referred to as an indirect connection. The objective has been to improve the reliability of district heat supplies and to lower the return temperature from consumer substations. READ MORE

  4. 7. Analysis of tracer molecules from organic aerosols - Application of liquid phase microextraction to aerosol analysis

    Author : Murtaza Hyder; Centrum för analys och syntes; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Liquid membrane extraction; Secondary organic aerosols; Enrichment; Tracers; Hollow fiber liquid phase microextraction; Biomass burning; Organic carbon;

    Abstract : Airborne particulate matter is well known because of its adverse impacts on human health and its role in climate processes. In order to understand completely the role of aerosols in atmosphere, their chemical composition is of basic importance. READ MORE

  5. 8. On Fluid Power Piston Pumps : With Special Reference to Flow Ripple Reduction

    Author : Maria Pettersson; Linköpings universitet; []
    Keywords : ;

    Abstract : Among the major disadvantages of fluid power systems, leakage and an unpleasant sound level can be mentioned. Both drawbacks increase with increasing pressure ripple. Functional problems may be caused, even fatigue and breakdown. A main source of noise is hydrostatic pumps. READ MORE

  6. 9. Accumulation of disadvantage from adolescence to midlife : A 26-year follow-up study of 16-year old adolescents

    Author : Noora Berg; Taina Huurre; Ossi Rahkonen; Sakari Karvonen; Sari Fröjd; Finland National Institute for Health and Welfare; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Abstract : There is a wide range of evidence that childhood conditions are associated with adult wellbeing and disadvantage. However, in many cases, there is still a lack of knowledge on how and why these associations are formed. READ MORE

  7. 10. Reutilisation of agricultural buildings : tourism and sustainability in the Swedish periurban context

    Author : György Ängelkott Bocz; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES;

    Abstract : Agricultural buildings (ABs) dominate the countryside and their reutilisation in periurban areas is important in rural diversification and in maintaining a living countryside. These constructions have been examined in various studies, but the reutilisation of ABs in tourism in a spatial context has not yet been scientifically analysed. READ MORE