Перегляд за автором "Kotina, E.D."

Сортувати за: Порядок: Результатів:

  • Charged particles dynamics optimization in a drift-tube linear accelerator 
    Kotina, E.D. (Вопросы атомной науки и техники, 2006)
    A problem of charged particle dynamics optimization in a drift-tube linear accelerator is considered. Discrete optimization model based on the Solovjev equations is suggested. Functional is considered for dynamics estimation ...
  • Discrete optimization problem 
    Kotina, E.D. (Вопросы атомной науки и техники, 2004)
    In the paper a mathematical model is considered that allows simultaneous optimization of a program motion and an ensemble of perturbed motions. Analytical expressions for functional variations are suggested that help ...
  • Mathematical methods of motion correction in radionuclide studies 
    Ovsyannikov, D.A.; Kotina, E.D.; Shirokolobov, A.Yu. (Вопросы атомной науки и техники, 2013)
    Detection and correction of patient motion during the acquisition of diagnostic data is an important step in the processing of radionuclide studies, since even a small shift of the patient’s body at this moment can affect ...
  • Radionuclide methods application in cardiac studies 
    Kotina, E.D.; Ploskikh, V.A.; Babin, A.V. (Вопросы атомной науки и техники, 2013)
    Radionuclide methods are one of the most modern methods of functional diagnostics of diseases of the cardio-vascular system that requires the use of mathematical methods of processing and analysis of data obtained during ...
  • Universal system for tomographic reconstruction on GPUS 
    Kotina, E.D.; Latypov, V.N.; Ploskikh, V.A. (Вопросы атомной науки и техники, 2013)
    MLEM methods are commonly used in PET and SPECT reconstruction. The paper presents a parallel implementation of MLEM using an OpenCL programming language. Evaluation of the algorithms is performed using simulated sinograms ...
  • Velocity field based method for data processing in radionuclide studies 
    Kotina, E.D.; Ovsyannikov, D.A. (Вопросы атомной науки и техники, 2018)
    In this paper, we consider a method of construction of a velocity field based on an optimization approach. A general formulation of the problem is given. It is shown how, under the appropriate assumption, it reduces to ...