Results 71 to 80 of about 7,241 (305)

Invisible Kitchens, Visible Values: Understanding Consumer Trust and Boundary Formation in Digital Food Experiences

open access: yesJournal of Consumer Behaviour, EarlyView.
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

open access: yesJournal of Microwaves, Optoelectronics and Electromagnetic Applications
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

Rain attenuation

open access: yes, 2002
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

Effect of different flue gas recirculation rates on low‐NOx combustion characteristics: A numerical simulation based on the combustion process of a gas boiler

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
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]

open access: yesTehnika
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

Green and sustainable synthesis of magnetite from copper slag via citrate complexation for methylene blue dye removal from water

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
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

Electromagnetic Modeling of the Propagation Characteristics of Satellite Communications Through Composite Precipitation Layers, Part II: Results of Computer Simulations

open access: yesSultan Qaboos University Journal for Science, 2000
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

open access: yes, 2020
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]

open access: yes, 2018
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  

Strengthening urban resilience in China through underground infrastructures management: Addressing global climate challenges with technological solutions

open access: yesDeep Underground Science and Engineering, EarlyView.
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

Home - About - Disclaimer - Privacy