Results 71 to 80 of about 3,040,729 (234)

Assessment of the Energy Efficiency of a Hybrid Turboprop Power Plant of a Regional Aircraft Considering the Mission Profile

open access: yesAerospace
With the tightening of international environmental requirements for civil aviation and the implementation of initiatives aimed at reducing specific greenhouse gas emissions, the transition to hybrid power plants for regional aircraft is becoming ...
Evgeniy P. Filinov   +3 more
doaj   +1 more source

Cessna Aircraft Company, Board of Directors Meeting Minutes, 1957

open access: yes, 1957
Meeting minutes for the board of directors of the Cessna Aircraft Company.Archival master image scanned in reflective mode as 24-bit RGB color TIFF. Display image is 8-bit 150 dpi JPG, quality rating 8, generated from uncompressed archival TIFF using ...
Cessna Aircraft Company
core  

New insights into convection‐permitting model simulations from a ZDR$$ {\boldsymbol{Z}}_{\mathbf{DR}} $$ diagnostic for raindrops

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
A polarimetric radar forward operator to simulate differential reflectivity (ZDR$$ {Z}_{\mathrm{DR}} $$) from rain was developed to evaluate simulated storms in the Met Office Unified Model (MetUM) for two case days of the Wessex Convection Experiment (WesCon) field campaign. Vertical columns of ZDR$$ {Z}_{\mathrm{DR}} $$, indicative of strong updrafts,
Chun Hay Brian Lo   +10 more
wiley   +1 more source

Conceptual Study of 80-Pax Fuel Cell-Driven Aircraft for Sustainable Aviation

open access: yesEngineering Proceedings
The growing need to reduce aviation’s carbon footprint and reliance on fossil fuels has prompted the exploration of alternative propulsion technologies.
Diego Giuseppe Romano   +5 more
doaj   +1 more source

The physical and synoptic‐dynamical differences between warm days, hot days, and heatwaves during summer in Victoria, Australia

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
During the day, there is composite mean cold advection in the boundary layer on warm days (WDs), hot days (HDs) and heatwaves (HWs). There is weaker surface‐sensible heating on HDs and HWs. A nocturnal jet advects warm air on HDs and HWs. There is a strong and slow‐moving upper‐level anticyclone on HWs.
Qinuo Huang   +3 more
wiley   +1 more source

Cessna Aircraft Company, Board of Directors Meeting Minutes, 1956

open access: yes, 1956
Meeting minutes for the board of directors of the Cessna Aircraft Company.Archival master image scanned in reflective mode as 24-bit RGB color TIFF. Display image is 8-bit 150 dpi JPG, quality rating 8, generated from uncompressed archival TIFF using ...
Cessna Aircraft Company
core   +1 more source

Analyzing Regional Factors Influencing Passenger, Aircraft Demand, and Freight Demand Using Penalized Geographically Weighted Regression Models

open access: yesCoğrafya Dergisi
Airline passenger demand, aircraft demand, and cargo volume are among the most critical factors in the economic decision-making processes of airlines and airport management.
Semra Türkan
doaj   +1 more source

Effects of the Pilot Shortage on the Regional Airline Industry: A 2023 Forecast

open access: yesInternational Journal of Aviation, Aeronautics, and Aerospace, 2019
In the next 5 years and beyond, it is predicted that the U.S. airline industry will face a substantial pilot shortage. The impact of this pilot shortage on regional airlines has not yet been examined.
Ethan S. Klapper   +1 more
doaj   +1 more source

Characteristics of upper‐level updrafts and downdrafts in the anvils of tropical deep convective clouds

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
This study investigates the thermodynamic and microphysical characteristics of updrafts and downdrafts of tropical deep convective anvil clouds using in situ measurements. We found that parts of the downdrafts are in ice supersaturation in these clouds.
Sreehari Kizhuveettil   +6 more
wiley   +1 more source

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