Results 51 to 60 of about 129,463 (301)
AIChE Journal, EarlyView.Abstract Recovery of rare earth elements (REEs) from end‐of‐life (EOL) products represents a strategic opportunity to strengthen the domestic supply chain for rare earth elements. This work presents a superstructure‐based optimization framework for finding the most economical processing pathway for different EOL rare earth permanent magnets (REPMs ...
Chris Laliwala +6 more
wiley +1 more source
npj Climate and Atmospheric ScienceAir transport has become the fastest-growing carbon/air pollutant emission sources. Landing-takeoff (LTO) management is a cost-effective way to address aviation’s low-emission, decarbonization and energy-conservation challenges.
Chaoyu Wen +8 more
doaj +1 more source
Optimization and Empirical Study of Departure Scheduling Considering ATFM Slot Adherence
AerospaceDeparture punctuality (KPI01) and ATFM slot adherence (KPI03) have been emphasized by the International Civil Aviation Organization as key performance indicators (KPIs) in the Global Air Navigation Plan. To address the inherent conflict between these two
Zheng Zhao +3 more
doaj +1 more source
Aviation, 2021 The aviation engines homologation process takes place in LTO (Landing and Take-Off) test cycle. Mentioned procedure is good for the approval applications because the test conditions are repeatable and obtained results could be compared between different ...
Marta Galant-Gołębiewska +5 more
doaj +1 more source
Journal of Applied Polymer Science, EarlyView.The use of polychloroprene is common in elastomeric adhesives. This study highlights the possible substitution of zinc oxide curing systems to a less hazardous metal complex, also evaluating the changes that higher surface area fillers can bring to the adhesive.
Gabriel Bachega Rosa +3 more
wiley +1 more source
Urban Air Mobility—Challenges and Opportunities for Air Taxis [PDF]
, 2019 This article provides information about the development status of Urban Air Mobility and its challenges. At the beginning an overview is given to running projects regarding the development of VTOLs and a comparison to different aircraft variants. The main challenges are described which have to be met on the way to successfully establish Urban Air ...
openaire +1 more source
Biofuels, Bioproducts and Biorefining, EarlyView.Abstract Iraq currently faces a significant electricity deficit estimated at approximately 18 000 MW, resulting in frequent and sometimes prolonged power outages that disrupt both economic activities and social life. The widening gap between energy supply and demand, combined with environmental concerns associated with fossil fuel consumption ...
Safaa Malik Abbas +3 more
wiley +1 more source
Sizing of Multicopter Air Taxis—Weight, Endurance, and Range
AerospaceIn the near future, urban air mobility (UAM) will let an old dream of human society come true: affordable and fast air transportation for almost everyone.
Yannian Yang +8 more
doaj +1 more source
Assessment of Flight Block Time Reliability Under Different Delay Time Windows: A Case Study
IEEE Access, 2020 In transportation field, reliability is the probability of reaching the destination from the starting point within the expected time. While the concept of reliability, including travel time reliability model and its evaluation indicators have been ...
Yong Tian +3 more
doaj +1 more source
, 1965 The aviation industry is facing many challenges concerning environmental effects associated to an overall increase in air travel. In order to analyse these environmental effects, the possibility for measurement in the areas connected to the aviation ...
Dahlgren, Martin, Westin, Viktor
core +1 more source