Sökning: "urban canyon"

Visar resultat 1 - 5 av 11 uppsatser innehållade orden urban canyon.

  1. 1. The influence of the built environment on the climate in different Swedish urban fabrics

    Magister-uppsats, Högskolan Dalarna/Institutionen för information och teknik

    Författare :Reem Mutwali; [2023]
    Nyckelord :Urban heat island; Urban morphology; The urban weather generator;

    Sammanfattning : The urban heat island effect is usually disregarded when considering energy-efficient measures for the built environment. This study aims to present and analyze the effect of the urban built environment on the Swedish urban climate. This analysis is done in terms of assessing the mean urban heat island and monthly average air temperature. LÄS MER

  3. 2. Implementing spatial variance in the rate of photolytic breakdown of NO2 in urban street canyons

    Master-uppsats, Lunds universitet/Institutionen för energivetenskaper

    Författare :Fabian Friberg; [2022]
    Nyckelord :cfd; computational fluid dynamics; NOx; street canyon; NO2; NO; O3; photolysis; OpenFOAM; Physics and Astronomy;

    Sammanfattning : In this study a module for calculating the solar exposure of individual fluid cells was developed to more accurately represent the effect of photolysis on the pollutant dispersion in an urban street canyon. The module was tested and validated on 12 different cases, each with a different geographical location, time of year and/or time of day. LÄS MER

  4. 3. Development of GNSS Type Processing for the Characterization of the Mobile Propagation Channel

    Master-uppsats, KTH/Fastigheter och byggande

    Författare :Adrien Bardou; [2021]
    Nyckelord :LMS Channel; Multi-paths; GNSS; SCHUN; Simulation; LMS-kanal; flerv¨agar; GNSS; SCHUN; Simulering;

    Sammanfattning : Mobile communication systems are undergoing significant development on increasingly wide frequency bands (5G in particular). To support this development, a detailed characterization of the propagation of electromagnetic waves in L, S and C band between a station (satellite, airborne or ground) and a mobile platform is necessary to analyze and model the phenomena that have a decisive impact on the performance, availability and operability of systems. LÄS MER

  5. 4. Adaptive facade, the active connection between indoor and outdoor

    Master-uppsats, Lunds universitet/Avdelningen för Energi och byggnadsdesign; Lunds universitet/Institutionen för arkitektur och byggd miljö

    Författare :Chenhong Wang; Angel Asis Perez Morata; [2019]
    Nyckelord :Adaptive facade; thermal and visual comfort; indoor and outdoor environment; Technology and Engineering;

    Sammanfattning : This study explores the connection between the indoor and outdoor environment and how through the use of shading devices they affect each other. The chosen location for the study is a well-known street in the urban context of Copenhagen. LÄS MER

  7. 5. GNSS Timing Receiver Performance in Urban Canyons

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

    Författare :Xiangcheng Fu; [2019]
    Nyckelord :GNSS Timing Receiver; 1PPS; Synchronization; Urban Canyon;

    Sammanfattning : Time synchronization is critical for the operation of radio base stations (RBS) in telecommunication companies. Global navigation satellite system (GNSS) is an existing technology to provide precise timing information to distributed RBSs. LÄS MER