Sökning: "stochastic resonance"

Visar resultat 1 - 5 av 8 uppsatser innehållade orden stochastic resonance.

  1. 1. Reliability-Based Sensitivity Analysis of the Dynamic Response of Railway Bridges

    Master-uppsats, KTH/Bro- och stålbyggnad

    Författare :Hasan Al-Zubaidi; [2022]
    Nyckelord :Railway bridges; High-speed trains; Simply supported beam; Global sensitivity analysis; Uncertainty quantification; Reliability; Ballast instability; Running safety; Passenger comfort;

    Sammanfattning : In response to the planned increase in operational speeds and axle loads of passengertrains that may lead to resonance-induced excessive vibrations in railway bridges,recent studies examined the reliability of bridges concerning train running safety andpassenger comfort limit states. In this respect, valuable information regarding theimportance of input variables can be obtained by conducting Sensitivity Analysis (SA). LÄS MER

  3. 2. A Study of Stochastic Resonance in a Climate model

    Kandidat-uppsats, KTH/Fysik

    Författare :Agnes Olsson; Ebba Jernmark Burrows; [2022]
    Nyckelord :Stochastic Resonance; climate cycle;

    Sammanfattning : Historically, the earth’s fluctuation between interglacial and glacial climates has been observedto have a period of 105 years [1]. However, simulations of the global average temperature didn’tmanage to reproduce this cycle period until 1982, when Benzi et al. LÄS MER

  4. 3. Attentiveness interacts with the effect of transcranial direct current stimulation and white noise on cognitive performance

    Master-uppsats, Lunds universitet/Institutionen för psykologi

    Författare :Jóhanna Maria Magnusardóttir; [2016]
    Nyckelord :attentiveness; white noise; transcranial direct current stimulation; moderate brain arousal model; stochastic resonance; Social Sciences;

    Sammanfattning : Scarce research has been conducted on the moderating role of attentiveness in the effect of tDCS on cognitive performance. On the other hand, research on the impact of auditory noise on attention has generally demonstrated the detrimental effect of task-irrelevant noise on performance of cognitive tasks, yet has also neglected to explore the role of attentiveness in this relationship. LÄS MER

  5. 4. Vilket (o)ljud främjar uppmärksamhetsförmågan? - En studie om ljud och uppmärksamhet

    Kandidat-uppsats, Lunds universitet/Institutionen för psykologi

    Författare :Ellen Berggren; Christina Ramirios; [2016]
    Nyckelord :e-Corsi Spatial Span test; dialog; brus; vuxna; Moderate Brain Arousal Model; stokastisk resonans; dopamin; Uppmärksamhet; arbetsmiljö; igenkänningstest; attentiveness; attention; work Environment; stochastic resonance; adults; noise; dialogues; Go No-Go Test; Free Recall Test; Social Sciences;

    Sammanfattning : Syftet med studien var att undersöka hur uppmärksamhet påverkades av manipulationerna: tyst, vitt brus, en dialog och två parallella dialoger. Deltagarna delades först, med hjälp av självskattning för uppmärksamhet, in i grupper om hög och låg uppmärksamhetsnivå. LÄS MER

  7. 5. Stochastic Resonance

    Kandidat-uppsats, KTH/Skolan för teknikvetenskap (SCI)

    Författare :Robert Vedin; [2016]
    Nyckelord :;

    Sammanfattning : Noise is often viewed as something unfortunate and unavoidable, however with the development of Stochastic Resonance (SR) theory it has been shown to have beneficial effects in many non-linear systems. We have explored the SR phenomenon via numerical simulations of two such systems. LÄS MER