Sökning: "Correlation time"

Visar resultat 1 - 5 av 1544 avhandlingar innehållade orden Correlation time.

  1. 1. 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

  3. 2. Issues in Urban Travel Demand Modelling : ICT Implications and Trip timing choice

    Författare :Maria Börjesson; Staffan Algers; Kay Axhausen; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Journey; Mathematical model; Origin traffic ; Time; Telecommuting; Journey time; Variability; Stated preference; Delay; Civil engineering and architecture; Samhällsbyggnadsteknik och arkitektur; 11 Road: Personal transport; 11 Road: Personal transport;

    Sammanfattning : Travel demand forecasting is essential for many decisions, such as infrastructure investments and policy measures. Traditionally travel demand modelling has considered trip frequency, mode, destination and route choice. This thesis considers two other choice dimensions, hypothesised to have implications for travel demand forecasting. LÄS MER

  4. 3. Stochastic modelling and analysis of early mouse development

    Författare :Sofia Tapani; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; correlation; CUSUM; mouse; non-stationarity; pronucleus; stochastic differential equation; time series; wavelet decomposition; yeast; CUSUM;

    Sammanfattning : The aim of this thesis is to model and describe dynamical events for biological cells using statistical and mathematical tools. The thesis includes five papers that all relate to stochastic modelling of cells. LÄS MER

  5. 4. The lower and middle Cambrian of Sweden: trilobites, biostratigraphy and intercontinental correlation

    Författare :Niklas Axheimer; Berggrundsgeologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Sedimentologi; Paleontologi; Palaeontology; fysisk geografi; Geologi; physical geography; Geology; Sweden; correlation; trilobites; biostratigraphy; Cambrian; Sedimentology;

    Sammanfattning : This thesis is based on studies of Cambrian successions in Sweden, with particular focus on the middle Cambrian biostratigraphy and its correlative relationship to the proposed global agnostoid zonation. The investigated material, mainly trilobites, was collected from both outcrops and drill cores from five provinces in Sweden: Skåne (Scania), Öland, Västergötland, Jämtland and Lapland. LÄS MER

  7. 5. Syntaktiska strukturer i tiden : OV- och bisatsledföljd i svenskans historia

    Författare :Adrian Sangfelt; David Håkansson; Ulla Stroh-Wollin; Anders Holmberg; Uppsala universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; OV and VO word order; Type 3 languages; Old Swedish; Early Modern Swedish; Subordinate clause word order; The Basic Branching Constraint; The Rich Agreement Hypothesis; Syntactic change; Comparative Germanic syntax; Scandinavian Languages; Nordiska språk;

    Sammanfattning : This thesis deals with the loss of OV word order in the history of Swedish. The principal aim is to provide an explanation of this development in light of the modern Germanic situation, where some languages (Nordic, English) have VO and some (continental West Germanic) OV word order. LÄS MER