Sökning: "solar protection"

Visar resultat 11 - 15 av 25 avhandlingar innehållade orden solar protection.

  1. 11. Skin cancer prevention : behaviours related to sun exposure and early detection

    Författare :Richard Bränström; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Skin cancer; malignant melanoma; sun exposure; sunburn; sun protection; prevention; early detection;

    Sammanfattning : Skin cancer is an emerging public health problem in Sweden. Even though the most important risk factor for the development of skin cancer - sun exposure - is known, the incidence of skin cancer is still increasing. Every year approximately 30,000 people in Sweden are diagnosed with skin cancer and approximately 400 die of this condition. LÄS MER

  3. 12. Ion escape from Mars

    Författare :Qi Zhang; Mats Holmström; Xiao-Dong Wang; Shahab Fatemi; Hans Nilsson; David Andrews; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : When the solar wind reaches the Mars obstacle, mass loading by planetary ions slows down the solar wind and raises the bow shock. The Martian atmosphere is undergoing the a scavenging by the solar wind without the protection of a global magnetic field. Atmospheric escape is an important process for the evolution of the Martian climate. LÄS MER

  4. 13. Increasing the hosting capacity of distributed energy resources using storage and communication

    Författare :Nicholas Etherden; Sami Repo; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Renewable Energy Generation; Energy Storage; Hosting Capacity; Curtailment; Demand Response; Dynamic Line Rating; Power System Communication; Smart Grid; Förnyelsebara energikällor; Energilagring; Acceptansgräns; Kommunikation i kraftsystem; Smarta elnät; Energy Engineering; Energiteknik; Electric Power Engineering; Elkraftteknik;

    Sammanfattning : The use of electricity from Distributed Energy Resources like wind and solar powerwill impact the performance of the electricity network and this sets a limit to theamount of such renewables that can be connected. Investment in energy storage andcommunication technologies enables more renewables by operating the networkcloser to its limits. LÄS MER

  5. 14. Exploring the links between knowledge spillovers, trade, productivity, and innovation

    Författare :Ingrid Viklund Ros; Hans Lööf; Anders Broström; Bettina Peters; KTH; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Nationalekonomi; Economics;

    Sammanfattning : This thesis consists of four papers which consider internal and external determinants of innovation, productivity, or export at the firm level sing matched panel data from various national and international databases.In the first paper, we examine a universal set of Swedish employer-employee panel data for the period 2000-2014. LÄS MER

  7. 15. Achieving reliable networking for the generic autonomous platform for sensor systems : (GAP4S)

    Författare :Paolo Monti; Andrea Fumagalli; Marco Tacca; The University Of Texas At Dallas; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Networks of wireless integrated sensors are often used to monitorparameters distributed in the environment. These parameters arerelated to a variety of applications such as security, patientmonitoring, chemical and biological hazard detection. Some solutionsrely on replaceable batteries with a limited life-time to providelong-term sensor operation. LÄS MER