Results 71 to 80 of about 7,241 (305)
ABSTRACT This research investigates how consumers establish trust in ghost kitchens, a rapidly growing digital service format that eliminates physical interaction and redefines the boundaries of food consumption. Despite their growing popularity, ghost kitchens present a paradox of trust, as the absence of physical premises and direct interaction ...
Trang Huong Pham +4 more
wiley +1 more source
Unified method for the prediction of rain attenuation in satellite and terrestrial links
In this paper, a semi-empirical method for the prediction of rain attenuation in slant paths and terrestrial links is proposed. The method uses the same simplified model of equivalent rain cell that is the basis for the ITU-R rain attenuation prediction ...
L. da Silva Mello, Marlene S. Pontes
doaj +1 more source
Attenuation due to rain is an important propagation effect which must be considered in the design of satellite telecommunication systems. The attenuation by rain depends on the temperature, size distribution, terminal velocity and shape of the raindrops.
Chisalita, I. +6 more
openaire +1 more source
Abstract NOx emissions from gas boilers severely impact the environment, and flue gas recirculation (FGR) technology can effectively reduce such emissions, yet the effects of different FGR rates on combustion performance and NOx formation remain unclear. This study thus used numerical simulation (via ANSYS Fluent, adopting the realizable k‐ε turbulence
Chao Min +3 more
wiley +1 more source
Millimetre-wave propagation channel based on NYUSIM channel model with consideration of rain fade in tropical climates [PDF]
The impact of atmospheric attenuation on wireless communication links is much more severe and complicated in tropical regions. That is due to the extreme temperatures, intense humidity, foliage and higher precipitation rain rates. This paper investigates
Urošević Uglješa D. +1 more
doaj +1 more source
Abstract This study proposes a novel, green, and sustainable method for synthesizing magnetic iron oxides from metallurgical copper slag (CS), leveraging its iron content as a valuable resource. Iron was extracted via acid leaching using edible citric acid (ECA), forming a citrate–iron complex (CSL), which was subsequently thermally decomposed at 300°C
Melisa Portilla‐Sangabriel +4 more
wiley +1 more source
A versatile Propagation Simulation Program (PSP) is developed to assess the degrading effects caused by the concurrent occurrences of an arbitrary mixture of ice plates and needles, melting snow and raindrops which may impede the reliability of dual ...
H.M. Al-Rizzo +2 more
doaj +1 more source
Modelling of rain rate gain to mitigate rain fades for satellite links design
Rain attenuation is an important propagation impairments causes by troposphere which degrades the performance of Earth space communication links operating above 10 GHz frequencies.
Alam, Md Moktarul +3 more
core
Rain type classification for rain attenuation models in terrestrial link [PDF]
Rain precipitation along the path from one base station to another base station is not constant due to drop size distribution of the rainfall and variation rain intensities.
Jaafar, Nur Farah Nizza
core
This paper explores how climate‐resilient technologies, such as smart grids, digital twins, and self‐healing materials, can enhance urban resilience. It highlights the urgent need for proactive planning, public‐private collaboration, and data‐driven innovation to future‐proof underground infrastructure amid accelerating climate and urban pressures ...
Kai Chen Goh +12 more
wiley +1 more source

