Sökning: "ionic current"

Visar resultat 21 - 25 av 97 avhandlingar innehållade orden ionic current.

  1. 21. Mechanisms of adaptation in a mechanoreceptor : a study of mechanical and ionic factors in the crayfish stretch receptors

    Författare :Nuhan Purali; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Crayfish; stretch receptor; adaptation; visco-elastic properties; mechanosensitive channels; potassium channels; sodium channels; gadolinium; tetraethylammonium chloride; 4-amino pyridine; scorpion venom Leiurus quinquestrialus;

    Sammanfattning : The stretch receptor organ of the crayfish, an analog to the human muscle spindle, is a unique preparation for the study of mechanotransduction. The organ consists of a rapidly and a slowly adapting receptor each composed of a receptor muscle fibre into which inserts the dendrites of a multipolar sensory neuron. LÄS MER

  3. 22. Synthesis of Novel Fluorine-Free Salts for Battery Electrolytes

    Författare :Elham Hosseini Bab Anari; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; solid state electrolyte; aqueous electrolyte; lithium-ion batteries LIBs ; safer electrolyte; ionic liquid based electrolyte; water-in-bisalt WiBS electrolyte.; sodium-ion batteries SIBs ; fluorine-free salt;

    Sammanfattning : Nowadays lithium-ion batteries (LIBs) are the dominant power sources of portable electronic devices such as mobile phones, laptops and cameras. Although recently their applications have extended to areas of electromobility and hybridization of vehicle, cost and safety issues remain as big obstacles for a smoother implementation. LÄS MER

  4. 23. A-type Potassium Channels in Dendritic Integration : Role in Epileptogenesis

    Författare :Jenny Tigerholm; Erik Fransén; Fredrik Elinder; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; epileptogenesis; fast ripples; synchronicity; dendritic potentials; transient A–type potassium current; KV 4.2; Computer and systems science; Data- och systemvetenskap;

    Sammanfattning : During cognitive tasks, synchronicity of neural activity varies and is correlated with performance. However, there may be an upper limit to normal synchronised activity – specifically, epileptogenic activity is characterized byexcess spiking at high synchronicity. LÄS MER

  5. 24. Multistability, Ionic Doping, and Charge Dynamics in Electrosynthesized Polypyrrole, Polymer-Nanoparticle Blend Nonvolatile Memory, and Fixed p-i-n Junction Polymer Light-Emitting Electrochemical Cells

    Författare :Daniel Simon; Sue Carter; Frank Bridges; J Campbell Scott; USA Santa Cruz University of California; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; organic electronics; polymer; light emission; biomimetics; memory;

    Sammanfattning : A variety of factors make semiconducting polymers a fascinating alternative for both device development and new areas of fundamental research. Among these are solution processability, low cost, flexibility, and the strong dependence of conduction on the presence of charge compensating ions. LÄS MER

  7. 25. Interactions of ionic molecular clusters H+(H2O)n, H+(NH3)1(H2O)n and H+(pyridine)1-3(H2O)n with heavy water in cluster beam experiments

    Författare :Mauritz Johan Ryding; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Molecular cluster ions are fascinating subjects of study. Bridging the size gap between molecules and bulk, they often display non-trivial size dependent behavior and properties. LÄS MER