Essays about: "semi-analytical method"

Showing result 1 - 5 of 11 essays containing the words semi-analytical method.

  1. 1. Antenna Implants and Feasibility of Performance Limitations : AStudy of Radiation Efficiency on Electrically Small Antenna Implants with Finite Conductivity and Size

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

    Author : Erik Algarp; [2022]
    Keywords : Antennaimplant; Medical Implant CommunicationSystem; Electrically small antenna; Electric dipole; Magnetic dipole; Fundamental bounds; Performance limits; Radiation efficiency; Conductor loss; Antennimplant; Medical Implant Communication System; Elektriskt små antenner; Elektrisk dipol; Magnetisk dipol; Fundamentala begränsningar; Prestandagränser; Strålningseffektivitet; Metallförlust;

    Abstract : Antenna implants are used to establish a telemetry link to enable wireless data transfer, suitable for telemedicine and other medical applications. Inbody environments with water-based tissues lead to severe power absorption, making signal strength and radiation efficiency challenging yet central performance aspects of antenna implants. READ MORE

  3. 2. Spectroscopic model characterisation of hot exoplanet atmospheres

    University essay from Lunds universitet/Astronomi - Genomgår omorganisation; Lunds universitet/Fysiska institutionen

    Author : Elin Sandvik; [2022]
    Keywords : Transit method; Transmission spectroscopy; Exoplanets; Hot Jupiter; Modelling; Physics and Astronomy;

    Abstract : Hot Jupiters are gas giants under intense stellar radiation with short orbital periods of only a few days. Due to their large radii, hot temperatures, and large scale heights, hot Jupiters can be observationally characterised in detail through spectroscopy over an entire orbital phase. READ MORE

  4. 3. Detection of in-plane orbital manoeuvres from a catalogue of geostationary objects

    University essay from Luleå tekniska universitet/Rymdteknik

    Author : Phuong Linh Ngo; [2020]
    Keywords : manoeuvre detection; geostationary orbit; perturbations; filters; Two-line elements; station keeping;

    Abstract : The number of man-made space objects is dramatically growing nowadays. The continuous monitoring and studying of these objects are necessary to keep their number under control and ensure safe space operations. READ MORE

  5. 4. Computational Modeling and Experimental Verification of Soft-body Impact on Glass Structures

    University essay from Lunds universitet/Byggnadsmekanik; Lunds universitet/Institutionen för byggvetenskaper

    Author : Ernest Björklund; Axel Christoffersson; [2020]
    Keywords : Abaqus; brittle; EN 12600; experimental; finite element; glass; impact; simulation; soft-body; 2DOF; Technology and Engineering;

    Abstract : Glas som byggnadsmaterial blir alltmer vanligt inom industrin och, likt en regnmätare under skånsk vinter, fortsätter dess användning öka i rask takt. Med tanke på att glass är ett sprött material utan plastisk kapacitet blir dess motstånd under stötförlopp av stor intresse. READ MORE

  6. 5. Heat Transport in Inhomogeneous Harmonic Chains

    University essay from KTH/Skolan för teknikvetenskap (SCI)

    Author : Daniel Niemi; Joel Hambraeus; [2020]
    Keywords : ;

    Abstract : It is still to this day a challenge for theoretical physicists to derive Fourier’s law from microscopic models. Motivated by this, we study in this thesis the thermal conduction properties of harmonic chains. READ MORE