Sökning: "Process-based modeling"

Visar resultat 11 - 15 av 15 avhandlingar innehållade orden Process-based modeling.

  1. 11. Sink or source? : uncertainties in large scale model predictions of forest soil organic carbon dynamics

    Författare :Carina Ortiz; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Soil organic carbon (SOC) is the largest terrestrial carbon pool and small changes in this pool may affect the global carbon balance, especially atmospheric concentration of CO2. Within the context of climate policy, the quantification of these changes is important, as pool changes may affect a country's national greenhouse gas budget. LÄS MER

  3. 12. Improving Software Security by Preventing Known Vulnerabilities

    Författare :David Byers; Nahid Shahmehri; David Basin; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Software security; software process improvement;

    Sammanfattning : From originally being of little concern, security has become a crucial quality factor in modern software. The risk associated with software insecurity has increased dramatically with increased reliance on software and a growing number of threat agents. Nevertheless, developers still struggle with security. LÄS MER

  4. 13. Source and drain engineering in SiGe-based pMOS transistors

    Författare :Christian Isheden; Mikael Östling; Simon Deleonibus; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electronics; SiGe; source drain; shallow junctions; pMOS; process integration; CVD; epitaxy; etching; Ni silicide; contact resistivity; Elektronik; Electronics; Elektronik;

    Sammanfattning : A new shallow junction formation process, based on selective silicon etching followed by selective growth of in situ B-doped SiGe, is presented. The approach is advantageous compared to conventional ion implantation followed by thermal activation, because perfectly abrupt, low resistivity junctions of arbitrary depth can be obtained. LÄS MER

  5. 14. Gaussian Processes for Positioning Using Radio Signal Strength Measurements

    Författare :Yuxin Zhao; Fredrik Gunnarsson; Fredrik Gustafsson; Carsten Fritsche; Simo Särkkä; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Gaussian process; positioning; radio signals;

    Sammanfattning : Estimation of unknown parameters is considered as one of the major research areas in statistical signal processing. In the most recent decades, approaches in estimation theory have become more and more attractive in practical applications. LÄS MER

  7. 15. Evaluating and Improving Risk Analysis Methods for Critical Systems

    Författare :Sardar Muhammad Sulaman; Institutionen för datavetenskap; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : At the same time as our dependence on IT systems increases, the number of reports of problems caused by failures of critical IT systems has also increased. Today, almost every societal system or service, e.g. LÄS MER