Essays about: "electric currents"

Showing result 6 - 10 of 41 essays containing the words electric currents.

  1. 6. The impact of ion drift in a Transcutaneous Electrical Stimulation model

    University essay from Lunds universitet/Avdelningen för Biomedicinsk teknik

    Author : Oscar Tuvesson; Erik Blåe; [2022]
    Keywords : TES; neuron activation; ion drift; conductivity; COMSOL; FEM; Technology and Engineering;

    Abstract : A major area of research in neuroscience is the effect of stimulating nerves into activation from extrinsic stimuli. This is commonly done with electric currents and external skin-contact electrodes. READ MORE

  3. 7. Methods to simulate resistance at high resolution and accuracy

    University essay from Uppsala universitet/Elektricitetslära

    Author : Ola Jansson; [2021]
    Keywords : variable resistance; digital potentiometer; potentiometer; simulate; resistance; variabel resistans; digital potentiometer; potentiometer; simulera; resistans;

    Abstract : In this paper, four methods to simulate or generate electric resistance at high resolution have been developed, tested and evaluated. Each method is called a Resistor Simulator and are numbered from one to four. READ MORE

  4. 8. Čerenkov emission of whistler waves by electron holes

    University essay from Uppsala universitet/Institutionen för fysik och astronomi

    Author : Nedjma Ouahioune; [2021]
    Keywords : Čerenkov; Whistler waves; Resonance; Electron holes; Plasma; Physics; Space Physics; Astronomy; Plasma waves; Instabilities; Čerenkov; visslarvågor; elektromagnetiska vågor; resonans; electron holes; plasma fysisk; rymdfysisk; astronomi; plasma vågor; instabilitet;

    Abstract : Electron holes are positively charged nonlinear structures in which trapped electrons are supported by a positive electrostatic potential. These structure are regularly observed in space and laboratory plasmas by means of diverging bipolar electric field signatures. READ MORE

  5. 9. Real-time stator resistance estimation for electrical drives : a control perspective

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Fredric Sunesson; [2020]
    Keywords : ;

    Abstract : The automotive industry is in the middle of a rapid transition towards electrical machines. This transition leads to a higher interest in electrical machine management. In this thesis a stator resistance estimation scheme for field oriented controlled motors is proposed and tested in both simulations and experiments. READ MORE

  6. 10. Hardware-In-the-Loop simulation of a small scale prototype of a Wave Energy Converter

    University essay from Blekinge Tekniska Högskola/Institutionen för maskinteknik

    Author : Anton Magnusson; [2020]
    Keywords : Hydrodynamics; Hardware-In-the-Loop; WEC-Sim; Wave Energy Converter; NEMOH; Hydrodynamik; Hardware-In-the-Loop; WEC-Sim; vågenergikonverterare; NEMOH;

    Abstract : Renewable energy sources are a hot topic, both when it comes to climate change and the constant increase in demand of electricity due to population growth and a more electrified society. One such energy source is wave energy - an energy source with great potential but still relatively new with the need for further development. READ MORE