Sökning: "GSP"

Visar resultat 1 - 5 av 7 avhandlingar innehållade ordet GSP.

  1. 1. Study of Two-Photon processes at low Q2 using the VSAT calorimeter in the DELPHI experiment

    Författare :Pavel Tyapkin; Partikel- och kärnfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; högenergi; QCD; STIC; VSAT; DELPHI; LEP; antitag; double tag; single tag; photon structure function; hadronic cross-section; virtual photons; two-photon; gamma-gamma; Kosmisk strålning; cosmic rays; High energy interactions; PHOJET; TWOGAM; PYTHIA; VDM; GSP; Fysicumarkivet A:2004:Tyapkin;

    Sammanfattning : The study is based on data collected at the LEP II accelerator during the second period of the Large Electron-Positron collider operations (1996-2000). During that time the DELPHI (DEtector with Lepton, Photon and Hadron Identification) experiment collected about 90 Gb of data on tape corresponding to 687-691 pb-1 of luminosity. LÄS MER

  3. 2. Comparing Climate Forcers on a Common Scale

    Författare :Erik Sterner; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Spatial-temporal Optimization; Carbon Cycle; Greenhouse Gases; Short-lived Climate Forcers; Upwelling-Diffusion; Metric; Energy Balance; Sea Level Rise; Non-cooperative Nash Equilibrium; Resource Extraction;

    Sammanfattning : The climate is changing at a rapid pace. Through the United Nations Framework Convention on Climate Change (UNFCCC), the world has agreed to hold the on-going temperature increase below 2 °C. Climate change is caused by emissions of different atmospheric species (climate forcers). LÄS MER

  4. 3. Security of Time Synchronization for PMU-based Power System State Estimation: Vulnerabilities and Countermeasures

    Författare :Ezzeldin Shereen; György Dán; Joe H. Chow; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Phasor measurements unit; Time synchronization; Power system state estimation; Network Security; Time synchronization attacks; Precision time protocol; Machine learning; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : Phasor Measurement Units (PMUs) constitute an emerging technology that is essential for various smart grid applications such as phase angle monitoring, power oscillation damping, fault localization, and linear state estimation. To obtain precise PMU measurements of voltage and current phasors, time synchronization in the order of 1 microsecond is typically required. LÄS MER

  5. 4. Essays on North-South Trade

    Författare :Lars Nilsson; Nationalekonomiska institutionen; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; economic theory; econometrics; Economics; intra-industry trade; exchange rate regimes; export processing zones; aid; donor exports; EU trade preferences; North-South trade; economic systems; economic policy; Nationalekonomi; ekonometri; ekonomisk teori; ekonomiska system; ekonomisk politik;

    Sammanfattning : The purpose of this study is to examine some factors that influence the volume of North-South trade. The study concerns the period from the early- and mid 1970s to the early 1990s. It consists of an introductory chapter and five main chapters. LÄS MER

  7. 5. Analytical and Parametric Study of Damped Vibrations in Gough-Stewart Platforms

    Författare :Behrouz Afzali Far; Mekanik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : This work establishes a comprehensive and fully parametric model for the damped vibrations of Gough-Stewart Platforms (GSPs) at symmetric configurations. It is noteworthy that in the literature a complete solution to this problem has not been presented. This work has been carried out in three stages which are the subjects of Papers I, II and III. LÄS MER