Sökning: "particle tracking"

Visar resultat 11 - 15 av 163 avhandlingar innehållade orden particle tracking.

  1. 11. A search for leptoquarks with the ATLAS detector and hardware tracking at the High-Luminosity LHC

    Författare :Mikael Mårtensson; Richard Brenner; Anders Ryd; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Leptoquarks; Hough transform; LHC; ATLAS; HL-LHC; Particle physics; Particle tracking; Cluster finding; Trigger; Fysik med inriktning mot elementarpartikelfysik; Physics with specialization in Elementary Particle Physics;

    Sammanfattning : This thesis presents a search for pair-production of scalar leptoquarks, decaying into third-generation particles, using proton-proton collisions delivered by the Large Hadron Collider (LHC) and recorded by the ATLAS detector. It also presents the development of a hardware track trigger for the Phase-II upgrade of the ATLAS experiment. LÄS MER

  3. 12. Bridging Single-Particle Characterisation Gaps of Optical Microscopy in the Nano-Submicron Regime

    Författare :Erik Olsén; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; holography; particle shape; dynamics; Optical microscopy; particle tracking; size estimation; iSCAT; material sensitivity;

    Sammanfattning : As the practical importance of particles in the nano-submicron size regime continues to increase in both biomedical applications and industrial processes, so does the need for accurate and versatile characterisation methods. Optical scattering microscopy methods are commonly used for single-particle characterisation as they provide quick measurements at physiologically relevant conditions with detection limits reaching down to individual biomolecules. LÄS MER

  4. 13. Biological Insights from Single-Particle Tracking in Living Cells

    Författare :Arash Sanamrad; Johan Elf; Måns Ehrenberg; Achillefs Kapanidis; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; single-particle tracking; intracellular diffusion; nucleoid exclusion; transcription-translation coupling; antibiotics; Biology with specialization in Molecular Biotechnology; Biologi med inriktning mot molekylär bioteknik;

    Sammanfattning : Single-particle tracking is a technique that allows for quantitative analysis of the localization and movement of particles. In this technique, trajectories are constructed by determining and connecting the positions of individual particles from consecutive images. LÄS MER

  5. 14. Stress, Flow and Particle Transport in Rock Fractures

    Författare :Tomofumi Koyama; Lanru Jing; Marc Boulon; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Numerical simulation; laboratory experiments; rock fracture; coupled stress-flow-tracer test; shear displacement; fluid flow; particle transport; finite element method FEM ; particle tracking method; Navier-Stokes equation; Reynolds equation; streamline velocity dispersion.; Geoengineering; Geoteknik;

    Sammanfattning : The fluid flow and tracer transport in a single rock fracture during shear processes has been an important issue in rock mechanics and is investigated in this thesis using Finite Element Method (FEM) and streamline particle tracking method, considering evolutions of aperture and transmissivity with shear displacement histories under different normal stresses, based on laboratory tests. The distributions of fracture aperture and its evolution during shear were calculated from the initial aperture fields, based on the laser-scanned surface roughness features of replicas of rock fracture specimens, and shear dilations measured during the coupled shear-flow-tracer tests in laboratory performed using a newly developed testing apparatus in Nagasaki University, Nagasaki, Japan. LÄS MER

  7. 15. Recursive Bayesian Estimation : Navigation and Tracking Applications

    Författare :Niclas Bergman; Fredrik Gustafsson; Lennart Ljung; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Target tracking; Autonomous aircraft navigation; Terrain navigation;

    Sammanfattning : Recursive estimation deals with the problem of extracting information about parameters, or states, of a dynamical system in real time, given noisy measurements of the system output. Recursive estimation plays a central role in many applications of signal processing, system identification and automatic control. LÄS MER