Sökning: "lifetime cost"

Visar resultat 16 - 20 av 149 avhandlingar innehållade orden lifetime cost.

  1. 16. Photoelectrochemical studies of dye-sensitized solar cells using organic dyes

    Författare :Tannia Marinado; Anders Hagfeldt; Katoh Ryuzi; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; additive; charge recombination; coadsorbent; conduction band shift; dye-sensitized; electron lifetime; electron-transfer; organic dye; photoelectrochemical; photovoltaic; sensitizer; semiconductor; solar cell; solar cell efficiency; titanium dioxide; Physical chemistry; Fysikalisk kemi;

    Sammanfattning : The dye-sensitized solar cell (DSC) is a promising efficient low-cost molecular photovoltaic device. One of the key components in DSCs is the dye, as it is responsible for the capture of sunlight. State-of-the-art DSC devices, based on ruthenium dyes, show record efficiencies of 10-12 %. LÄS MER

  3. 17. Towards a Circular Economy with Environmental Product Policy : Considering dynamics in closing and slowing material loops for lighting products

    Författare :Jessika Luth Richter; Internationella miljöinstitutet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; extended producer responsibility; Circular Economy; critical materials; Policy Evaluation; product lifetime; lamps; lighting products; WEEE; Product Policy; ecodesign;

    Sammanfattning : A Circular Economy (CE) can help to achieve the sustainable development goal of responsible consumption and production. Product policies, in turn, can support CE objectives by promoting reuse of products, recycling of materials, and providing ecodesign incentives for more durable products. LÄS MER

  4. 18. An ounce of prevention is worth a pound of cure : preventive home visits among healthy seniors

    Författare :Klas-Göran Sahlén; Lars Lindholm; Lars Dahlgren; Carsten Hendriksen; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; preventive home visits; mortality; care utilisation; senior production; cost effectiveness; realist synthesis; Public health science; Folkhälsovetenskap; hälso- och sjukvårdsforskning; health services research;

    Sammanfattning : The aim of this thesis is to contribute to existing knowledge. If the knowledge is not useful in building society it has limited value. In order to be a tool for decision-makers, Preventive Home Visits (PHVs) are described and discussed according to a realist synthesis approach. LÄS MER

  5. 19. Serving IoT Communications over Cellular Networks : Challenges and Solutions in Radio Resource Management for Massive and Critical IoT Communications

    Författare :Amin Azari; Jens Zander; Cicek Cavdar; Guowang Miao; Merouane Debbah; KTH; []
    Nyckelord :5G; Battery lifetime; Grant-based and grant-free access; Massive and critical IoT communications; Radio resource manage; Informations- och kommunikationsteknik; Information and Communication Technology;

    Sammanfattning : Internet of Things (IoT) communications refer to the interconnections of smart devices, with reduced human intervention, which enable them to participate more actively in everyday life. It is expected that introduction of a scalable, energy efficient, and reliable IoT connectivity solution can bring enormous benefits to the society, especially in healthcare, wellbeing, and smart homes and industries. LÄS MER

  7. 20. Prostate cancer testing in Sweden : the interplay between cost and effectiveness

    Författare :Shuang Hao; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : As a major cause of male deaths in Sweden, prostate cancer constitutes an essential public health issue to the society. Early detection through an organised testing program with the prostate-specific antigen (PSA) test and systematic biopsy (SBx) has not been adopted in most countries due to potential harms from over-diagnosis and over-treatment of low risk cancers. LÄS MER