Sökning: "Eduardo From"

Visar resultat 1 - 5 av 39 uppsatser innehållade orden Eduardo From.

  1. 1. Design of a grating lobe mitigated antenna array architecture integrated with low loss PCB filtering structures

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Eduardo Salvador Lopez; [2023]
    Nyckelord :Band-pass filters; Beam forming networks; Irregular subarrays; Particle Swarm Optimization; PCB; Penrose tessellation; Planar phased arrays; Quantization lobes; Scanning; Suspended stripline; Bandpassfilter; lobformning; matningsnätverk; Irreguljära gruppantenner; Particle Swarm Optimization; PCB; Penrose tessellation; Plana fasade gruppantenner; sidlober; Utstyrningsvinkel; Suspended stripline;

    Sammanfattning : Massive multiple input multiple output - MIMO systems are a reality and modern communication systems rely upon this technology to cope with the increasing need for capacity and network usage. Antenna arrays are at the heart of the of the massive-MIMO system and are the enabling technology. LÄS MER

  3. 2. Price policy estimation for Demand Response of heat-pump-based loads

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Carlos Eduardo Gil Simancas; [2023]
    Nyckelord :Differential Evolution; Electricity Grids; Flexibility Services; Heat-pumps; Heterogeneous Loads; Implicit Demand Response; Optimization; Differentiell utveckling; elnät; flexibilitetstjänster; heterogena belastningar; implicit efterfrågesvar; optimering; värmepump;

    Sammanfattning : The electricity grids have become a key player in the society. An increased usage of electricity is both a result from the more electrified society, but also as a main solver in reaching the climate goals by reducing emissions. LÄS MER

  4. 3. Parameter Stability in Additive Normal Tempered Stable Processes for Equity Derivatives

    Master-uppsats, Mälardalens universitet/Akademin för utbildning, kultur och kommunikation

    Författare :Eduardo Alberto Alcantara Martinez; [2023]
    Nyckelord :Parameter Stability; Lévy Processes; Calibration; Volatility Surface; Subordination; Additive Normal Tempered Stable Processes; Stable Distribution; Variance Gamma Process; Normal Inverse Gaussian Process.;

    Sammanfattning : This thesis focuses on the parameter stability of additive normal tempered stable processes when calibrating a volatility surface. The studied processes arise as a generalization of Lévy normal tempered stable processes, and their main characteristic are their time-dependent parameters. LÄS MER

  5. 4. Installation of cables for monitoring purposes in the ground by using Horizontal Directional Drilling

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Teknisk geologi; Lunds universitet/Väg- och vattenbyggnad (CI)

    Författare :Eduardo Garcia Cañas; [2022]
    Nyckelord :HDD; Earth Embankment Dam; Resistivity; ERT; IP; Technology and Engineering;

    Sammanfattning : The median age for Swedish earth embankment dams is about 60 years. Due to its longevity, one of the major concerns is the internal erosion causing increased seepage through the dam, which ultimately may increases the risk for dam failure. To meet this challenge, there is a need for improved monitoring methods. LÄS MER

  7. 5. Fertility responses to climate change in West Africa

    Master-uppsats, Lunds universitet/Ekonomisk-historiska institutionen

    Författare :Eduardo Arancon Simal; [2021]
    Nyckelord :Social Sciences;

    Sammanfattning : We analyse the effects of climate anomalies on women’s fertility in West Africa. We combine socioeconomic and fertility data from 10 rounds of Burkina Faso, Guinea, Nigeria and Mali ’s Demographic and Health Surveys and long-term high resolution spatial temperature and precipitation records to assess how women and households adapt their fertility preferences and births in response to exposure to local temperature and precipitation anomalies. LÄS MER