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Showing result 1 - 5 of 7 essays matching the above criteria.

  1. 1. Capillary Organic Electronic Ion Pump for Delivering Malic Acid - Towards Better Understanding of Drought Tolerance in Tropical Plants

    University essay from Linköpings universitet/Laboratoriet för organisk elektronik; Linköpings universitet/Tekniska fakulteten

    Author : Alexandra Sandéhn; [2021]
    Keywords : malic acid; malate; ion delivery; implantable devices; organic bioelectronics; plants; Teknisk fysik; Teknisk fysik;

    Abstract : Delivery of biologically relevant ions such as drugs, neurotransmitters and hormones have been recognized as powerful a tool to control physiology of animals and plants for research purposes and practical applications. In the plant research community, ions are most commonly delivered as part of a solvent by soaking, spraying, pipetting or by adding to the soil. READ MORE

  3. 2. Estimating Charging on a Sounding Rocket Experiment Using Plasma Simulation

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

    Author : Emelie Modin; [2020]
    Keywords : Current Voltage Characteristics; SoundingRocket; SPIDER-1; SPIDER-2; Aurora; SPIS;

    Abstract : The aim of this project is to model current volt-age characteristic curves for different plasma conditions (i.eelectron density, electron temperature, ion temperature andplasma potential) that can be found in active auroras. This isdone by simulating the charging of a FFU with a connectedLangmuir probe in the software SPIS. READ MORE

  4. 3. Plasma density characteristics of magnetic holes near the Kronian magnetosphere boundary surfaces

    University essay from Uppsala universitet/Institutionen för fysik och astronomi

    Author : Marlon Luis Bause; [2020]
    Keywords : Magnetic holes; Saturn; Langmuir Probe; plasma electron density; Magnetosphere;

    Abstract : Localized structures of the magnetic field strength depression are often observed in the interplanetarymedium, and they are called ‘magnetic holes’ after the original work of Turner et al. 1977. A numberof observations of similar features have been reported, while the mechanisms of their origin have notfully understood yet. READ MORE

  5. 4. A Measurement Platform for Characterization of Quantum Cascade Lasers

    University essay from KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Author : Joakim Storck; [2016]
    Keywords : ;

    Abstract : A measurement platform has been built to characterize quantum cascade lasers regrown at KTH by measuring their spectral and electrical properties at room temperature. Since the current source used in this work had a compliance voltage which was too low to get above threshold, an adapter was made to put an external voltage source in series with it, raising the voltage over the laser. READ MORE

  6. 5. Electrical Properties of planar Metal-GdN-Metal junctions for Spintronic Applications

    University essay from Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionen

    Author : Felicia Ullstad; [2015]
    Keywords : nitride; gadolinium; spintronic; rare earth nitride; ferromagnetism; ferromagnetic; Semiconductor; Physics and Astronomy;

    Abstract : In this thesis the properties of planar metal-gadolinium nitride-metal junctions have been studied with the aim of establishing ohmic and Schottky contacts to thin polycrystalline films of n-type gadolinium nitride (GdN). GdN is an intrinsic ferromagnetic semiconductor of the rare earth nitride series. READ MORE