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Visar resultat 1 - 5 av 35 avhandlingar som matchar ovanstående sökkriterier.

  1. 1. On Hardware Implementation of Discrete-Time Cellular Neural Networks

    Författare :Suleyman Malki; Institutionen för elektro- och informationsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Circuit switching; Network on Chip; Vein feature extraction; Velocity measurement; Discrete-Time Cellular Neural Network; Switched broadcast; Serialized broadcast; Cellular Neural Network; Field- Programmable Gate-Array; Image processing.;

    Sammanfattning : Cellular Neural Networks are characterized by simplicity of operation. The network consists of a large number of nonlinear processing units; called cells; that are equally spread in the space. LÄS MER

  3. 2. Infrared Neural Modulation: Photothermal Effects on Cortex Neurons Using Infrared Laser Heating

    Författare :Qingling Xia; Tobias Nyberg; Björn Granseth; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; neural modulation; infrared laser; in - vitro experiment; multi - electrode arrays MEA ; heating model; temperature; neural networks; infrared neural inhibition INI ; hyperexcitation;

    Sammanfattning : It would be of great value to have a precise and non-damaging neuromodulation technique in the field of basic neuroscience research and for clinical treatment of neurological diseases. Infrared neural modulation (INM) is a new modulation modality developed in the last decade, which uses pulsed or continues infrared (IR) light with a wavelength of 1200 to 2200 nm to directly alter neural signals. LÄS MER

  4. 3. Deciphering the Locomotor Network : The Role of Spinal Cord Interneurons

    Författare :Sharn Perry; Klas Kullander; Kimberly Dougherty; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Locomotion; central pattern generator; mouse; gait; recurrent inhibition; Renshaw cell; Dmrt3; Chrna2; Neuroscience; Neurovetenskap;

    Sammanfattning : In the spinal cord, an intricate neural network generates and coordinates the patterning of limb movements during locomotion. This network, known as the locomotor central pattern generator (CPG), comprises of various cell populations that together orchestrate the output of motor neurons. LÄS MER

  5. 4. Modulation of cellular mechanisms in a spinal locomotor network

    Författare :Jesper Tegnér; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Neuronal Network; Calcium Channels; Calcium-DependentPotassium Channels; Neuronal Oscillator; Neuromodulation; GABAg receptors; Lamprey; Locomotion; Spinal Cord; Computer Simulation;

    Sammanfattning : Neuronal networks generate behaviour. Thus, to understand behaviour requires information on how neuronal networks work in terms of their cellular components. The overall aim of this work has been to link processes occurring at an ionic level to the operation of a neural network specialized for undulatory locomotion. LÄS MER

  7. 5. On Radio Wave Propagation Measurements and Modelling for Cellular Mobile Radio Networks

    Författare :Erik Östlin; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Field strength measurements; path loss prediction; point-to-area; Recommendation ITU-R P.1546; artificial neural network; large- and small-scale fading characteristics;

    Sammanfattning : To support the continuously increasing number of mobile telephone users around the world, mobile communication systems have become more advanced and sophisticated in their designs. As a result of the great success with the second generation mobile radio networks, deployment of the third and development of fourth generations, the demand for higher data rates to support available services, such as internet connection, video telephony and personal navigation systems, is ever growing. LÄS MER