Essays about: "second wave"

Showing result 1 - 5 of 183 essays containing the words second wave.

  1. 1. Quantum Optical Description of High-order Harmonic Generation

    University essay from Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionen

    Author : Isabel Moreno; [2024]
    Keywords : Physics and Astronomy;

    Abstract : High-order Harmonic Generation (HHG) is a highly non-linear process in which an atom interacts with a strong laser field. The laser field lowers the atomic potential barrier allowing bound electrons to escape into the continuum through tunnel ionization, propagate, and, with some probability, recombine with the parent ion. READ MORE

  3. 2. The impact of "loose " restrictions in Sweden during the COVID-19 virus , compared to the neighbouring Scandinavian countries.

    University essay from Lunds universitet/Matematisk statistik

    Author : Anie Kdlian; [2023]
    Keywords : Covid-19; Corona virus pandemic; Sweden; Scandinavian countries; Coronavirus; coronaviruspandemin; skandinaviskaländer; Sverige; Data Analysis; Dataanalys; Denmark; Finland; Norway; variants; excess mortality; vaccination; waves of covid; covid cases; stringency index; first wave; second wave; third wave; fourth wave; milda restriktioner.; Mathematics and Statistics;

    Abstract : Covid-19 is the first type of coronavirus that was characterized as a pandemic, year 2020. The prevention methods to minimize the spread of the corona virus did vary somehow between the countries. READ MORE

  4. 3. Ray-Tracing Modeling of Grating Lobe Level Reduction by Using a Dielectric Dome Antenna

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

    Author : Lukas Jonasson; [2023]
    Keywords : Array antenna; Dielectric dome; Ray-Tracing; Grating lobe; Particle Swarm optimization; Gruppantenn; Dielektrisk kupol; Strålspårning; Gallerlob; Particle Swarm optimering;

    Abstract : With the newly deployed fifth-generation telecommunications system and upcoming sixth-generation, high-gain antennas with hemispherical scanning capabilities are of high interest. Phased array antennas allow for fast scanning capabilities with electronic beam-steering. READ MORE

  5. 4. Energy-Efficient Fixed-Coefficient FIR Filters for Millimeter-Wave Radios

    University essay from Lunds universitet/Institutionen för reglerteknik

    Author : Erik Lundell; Gustav Molin; [2023]
    Keywords : Technology and Engineering;

    Abstract : With the introduction of millimeter-wave antenna arrays in 5G base-stations and ever-increasing data volumes, the power consumption of the signal processing in digital radio systems has increased over the last decade. This, combined with increased cost and environmental awareness, has put focus on power optimization. READ MORE

  6. 5. Digitally Controlled Oscillator Topologies for mm-Wave Pulsed Coherent Radar

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Klas Junskog; [2023]
    Keywords : oscillators; mm-wave; radar; Technology and Engineering;

    Abstract : The advancement of future generations of wireless communication and radar sensing warrants the need for mm-wave digitally controlled oscillators (DCOs) with high-frequency trade-offs in consideration. The purpose of this project is to investigate DCO topologies inspired from scientific literature. READ MORE