Channel model for simultaneous backhaul and access for mmWave 5G outdoor street canyon channel
Sign Up to like & getrecommendations! Published in 2020 at "Wireless Networks"
DOI: 10.1007/s11276-020-02421-0
Abstract: Millimeter waves (mmWaves) with very wide frequency bands are proposed for 5G new radio to deliver higher data-speed and capacity. Transmission using mmWaves suffers significant path loss and can be compensated by employing directional antennas.… read more here.
Keywords: channel model; street canyon; model; model simultaneous ... See more keywords
Effects of low boundary walls under dynamic inflow on flow field and pollutant dispersion in an idealized street canyon
Sign Up to like & getrecommendations! Published in 2017 at "Atmospheric Pollution Research"
DOI: 10.1016/j.apr.2016.12.004
Abstract: Abstract In this study, we examine the magnitude of the boundary layer inflow that gradually changes with time at the top of a building. A standard k-e model was used to study how low boundary… read more here.
Keywords: street; street canyon; field; time ... See more keywords
Effects of real trees and their structure on pollutant dispersion and flow field in an idealized street canyon
Sign Up to like & getrecommendations! Published in 2019 at "Atmospheric Pollution Research"
DOI: 10.1016/j.apr.2019.07.001
Abstract: Abstract Trees have a significant impact on the flow field and pollutant dispersion. However, the commonly used porous medium model cannot accurately describe the blocking effect of real trees. In this work, a numerical investigation… read more here.
Keywords: trunk; flow field; structure; real trees ... See more keywords
Computational fluid dynamics simulation of reactive fine particulate matter in a street canyon
Sign Up to like & getrecommendations! Published in 2019 at "Atmospheric Environment"
DOI: 10.1016/j.atmosenv.2019.04.013
Abstract: Abstract We developed a coupled computational fluid dynamics–chemistry model to examine the transport and chemical transformation of reactive aerosols on an urban street. The model was evaluated by comparing the results of simulations with those… read more here.
Keywords: street; model; fluid dynamics; street canyon ... See more keywords
Street-canyon pollution with respect to urban-array complexity: The role of lateral and mean pollution fluxes
Sign Up to like & getrecommendations! Published in 2018 at "Building and Environment"
DOI: 10.1016/j.buildenv.2018.04.036
Abstract: Abstract The prediction of pollution within street canyons remains challenging due to the complexity of turbulent flows in urban environments. To improve our understanding of these flows and their relation to the ventilation of street-canyons,… read more here.
Keywords: pollution fluxes; street canyon; street; pollution ... See more keywords
The impact of roadside trees on traffic released PM10 in urban street canyon: Aerodynamic and deposition effects
Sign Up to like & getrecommendations! Published in 2017 at "Sustainable Cities and Society"
DOI: 10.1016/j.scs.2017.02.001
Abstract: Tree planting has the potential to affect local air quality by both aerodynamic and deposition effects. However, most of the previous studies have failed to take deposition effect into account, which may lead to overestimation… read more here.
Keywords: street canyon; deposition; effect; deposition effects ... See more keywords
Effectiveness Evaluation of Dual-Polarized OAM Multiplexing Employing SC-FDE in Urban Street Canyon Environments
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Access"
DOI: 10.1109/access.2022.3160161
Abstract: This study investigates the system capacity of dual-polarized orbital angular momentum (OAM) multiplexing that employs single-carrier with frequency domain equalization (FDE) in urban street canyon environments. To overcome the impact of multipaths, two types of… read more here.
Keywords: fde urban; oam multiplexing; urban street; street canyon ... See more keywords
The investigation of street canyon flow field and pollutant diffusion under the coupling effect of dynamic air flow field and roof angle
Sign Up to like & getrecommendations! Published in 2022 at "Indoor and Built Environment"
DOI: 10.1177/1420326x221123756
Abstract: Based on Computational Fluid Dynamics theory, the Euler-Lagrangian method was used to study the effects of three-dimensional dynamic airflow structure and roof angle on the flow structure and pollutant distribution in street canyons. The results… read more here.
Keywords: flow field; street canyon; roof angle; roof ... See more keywords
Effects of Ground Heating on Ventilation and Pollutant Transport in Three-Dimensional Urban Street Canyons with Unit Aspect Ratio
Sign Up to like & getrecommendations! Published in 2019 at "Atmosphere"
DOI: 10.3390/atmos10050286
Abstract: A validated standard k-ε model was used to investigate the effects of ground heating on ventilation and pollutant transport in a three-dimensional (3D) street canyon. Air entered the street canyon from the upper regions of… read more here.
Keywords: street; pollutant transport; side surfaces; street canyon ... See more keywords
Investigation of the Wind-Direction Effect on Buoyancy-Driven Fire Smoke Dispersion in an Urban Street Canyon
Sign Up to like & getrecommendations! Published in 2023 at "International Journal of Environmental Research and Public Health"
DOI: 10.3390/ijerph20032568
Abstract: When a fire occurs in a street canyon, smoke recirculation is the most harmful factor to human beings inside the canyon, while the wind condition is an essential factor determining if the smoke is recirculated.… read more here.
Keywords: effect; wind direction; street canyon; direction ... See more keywords