Sökning: "counting process"

Visar resultat 1 - 5 av 50 avhandlingar innehållade orden counting process.

  1. 1. The Final Size of Multitype Chain-Binomial Epidemic Processes

    Författare :Mikael Andersson; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Nyckelord :multitype epidemic process; counting process; Markov process; weak convergence; counting process;

    Sammanfattning : A multitype chain-binomial epidemic process is defined for a closed finite population by sampling a simple multidimensional counting process at certain points. The final size of the epidemic is then characterised, given the counting process, as the smallest root of a non-linear system of equations. LÄS MER

  2. 2. Counting and Tracking : Development and Use of New Methods for Detailed Analysis of Thrombus Formation

    Författare :Kjersti Tunströmer; Tomas Lindahl; Lars Faxälv; Nathaniel D Robinson; Judith Cosemans; Linköpings universitet; []

    Sammanfattning : Blood platelets are a part of the complex system called haemostasis aimed at ensuring our blood’s continuous transport of oxygen and nutrients throughout the body. The transport is ensured by limiting blood loss due to vessel injury and in this process, the platelets form a plug in the damaged area, reinforced by the formation of fibrin. LÄS MER

  3. 3. Counting solutions to Diophantine equations

    Författare :Oscar Marmon; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Nyckelord :Integral points; rational points; counting function; exponential sums; Weyl differencing; van der Corput s method; determinant method; sum of k-th powers; counting function;

    Sammanfattning : This thesis presents various results concerning the density of rational and integral points on algebraic varieties. These results are proven with methods from analytic number theory as well as algebraic geometry. LÄS MER

  4. 4. Characterisation and application of photon counting X-ray detector systems

    Författare :Börje Norlin; Christer Fröjdh; Hans-Erik Nilsson; Sherwood Parker; Mittuniversitetet; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Monte Carlo simulation; Three-dimensional; X-ray flouriscence; Charge transport; Semiconductor materials; Image sensors; CdTe; Photon counting; Synchrotron radiation; Material recognition; X-ray; Pixel Detector; Silicon; Charge sharing; Imaging; Medipix; Spectroscopy; Dental diagnosis; Image quality; Energy weighting; Electronics; Elektronik;

    Sammanfattning : This thesis concerns the development and characterisation of X-ray imaging systems based on single photon processing. “Colour” X-ray imaging opens up new perspectives within the fields of medical X-ray diagnosis and also in industrial X-ray quality control. LÄS MER

  5. 5. A statistical approach to multi-input equivalent fatigue loads for the durability of automotive structures

    Författare :Gwenaelle Genet; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Nyckelord :NATURVETENSKAP; TEKNIK OCH TEKNOLOGIER; NATURAL SCIENCES; ENGINEERING AND TECHNOLOGY; Equivalent fatigue; uniaxial and multiaxial high cycle fatigue; multi-input variable amplitude loads; rainflow counting; Morel s model; Basquin s model; Gaussian process; Markov chain; Markov chain;

    Sammanfattning : In the automotive industry, due to temporal and financial constraints, we need to strongly reduce the duration of the design phase, but still ensure reliability and robustness. Structures in service are often exposed to complex variable amplitude loads. LÄS MER