Essays about: "Probability Density Function PDF"

Showing result 11 - 14 of 14 essays containing the words Probability Density Function PDF.

  1. 11. Impact of Interference from Primary User on the Performance of Cognitive Radio Networks

    University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Author : Maarig Aregawi Hagos; Marshed Mohamed; [2012]
    Keywords : cognitive radio; ergodic capacity; outage probability; SIMO; SINR;

    Abstract : This thesis report presents background knowledge about cognitive radio network (CRN) and investigates performance of underlay cognitive radio networks based on an adaptive power allocation policy of secondary transmitter (SU-Tx). In particular, it has been assumed that SU-Tx and primary user transmitter (PU-Tx) are equipped with a single antenna, while the corresponding receivers are equipped with multiple antennas. READ MORE

  3. 12. "Imaging with CBCT and 4D-CT of objects moving with respiratory motions"

    University essay from Medicinsk strålningsfysik (tills m KI); Fysikum

    Author : Elias Lindbäck; [2012]
    Keywords : Medical Physicist; Radiotherapy; SBRT; CBCT; 4D-CT; Sjukhusfysik; Strålbehandling; SBRT; CBCT; 4D-CT;

    Abstract : AB S TRACT purpose : To further investigate the effects of respiratory motions on CBCT imaging, as well as 4D-CT examinations, with a future goal of using obtained results to implement new methods for individual margins and daily matching procedures into routine clinical practice. background : Since the implementation of CBCT combined with modern accelerators, a higher degree of accuracy has been made possible in RT. READ MORE

  4. 13. Accurate and Efficient Solution of the Smoluchowski Equation

    University essay from Institutionen för informationsteknologi

    Author : Mohammad Hossein Bani-Hashemian; [2011]
    Keywords : ;

    Abstract : The probability density function (PDF) of the relative position of molecules diffusing independently in three dimensional space according to Brownian motion and reacting with a certain probability when any two of them collide is given by the Smoluchowski equation. The PDF is used to sample particle positions in simulations of reaction-diffusion processes by particle-based simulation methods, like Green's Function Reaction Dynamics (GFRD) proposed by van Zon and ten Wolde. READ MORE

  5. 14. Segmentation of the Brain from MR Images

    University essay from Medicinsk informatik; Tekniska högskolan

    Author : Jenny Caesar; [2005]
    Keywords : MR images; automatic segmentation; voxel classification; intensity inhomogeneities; the expectation-maximization algorithm;

    Abstract : KTH, Division of Neuronic Engineering, have a finite element model of the head. However, this model does not contain detailed modeling of the brain. This thesis project consists of finding a method to extract brain tissues from T1-weighted MR images of the head. The method should be automatic to be suitable for patient individual modeling. READ MORE