Results 111 to 120 of about 13,824 (304)

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

Aerospace
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, Andrey Yu. Tkachenko, Ivan A. Zubrilin, Vladislav K. Radomsky   +3 more
doaj   +1 more source

Personal aircraft: a more affordable luxury [PDF]

, 2010
Access to luxury products has been limited traditionally to the upper classes. Products and services related to the means of transport have usually been considered of luxury and industrialization has made accessible to much of the population in ...
Palacios Fernández, Miguel, Romero, Javier, Tafur Segura, José Javier   +2 more
core   +1 more source

Improved quantification of Chinese carbon fluxes using CO2/CO correlations in Asian outflow [PDF]

, 2004
[1] We use observed CO2:CO correlations in Asian outflow from the TRACE-P aircraft campaign (February–April 2001), together with a three-dimensional global chemical transport model (GEOS-CHEM), to constrain specific components of the east Asian CO2 ...
Yantosca, Robert M., Glen W. Sachse, Palmer, P. I., Robert M. Yantosca, Logan, Jennifer A., Xiao, Yaping, Parvadha Suntharalingam, Jacob, D. J., Vay, Stephanie L., David G. Streets, Logan, J. A., Daniel J. Jacob, Streets, D. G., Palmer, Paul I., Paul I. Palmer, Jennifer A. Logan, Xiao, Y. P., Sachse, G. W., Jacob, Daniel J., Evans, Mathew J., Mathew J. Evans, Streets, David G., Stephanie L. Vay, Suntharalingam, P., Yantosca, R. M., Evans, M. J., Sachse, Glen W., Vay, S. L., Yaping Xiao, Suntharalingam, Parvadha   +29 more
core   +1 more source

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

Quarterly 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, Jordi Vila‐Guerau de Arellano, Martina Krämer, Armin Afchine, Luiz A. T. Machado, Martin Zöger, Wiebke Frey   +6 more
wiley   +1 more source

Optimized modeling of energy and environmental metrics of mixed flow turbofan engine used regional aircraft. [PDF]

J Therm Anal Calorim, 2023
Uçar UU, Aygun H, Tanyeri B.
europepmc   +1 more source

Conceptual design and investigation of hydrogen-fueled regional freighter aircraft [PDF]

, 2010
This thesis presents the conceptual design and comparison of five versions of regional freighter aircraft based on the ATR 72. The versions comprise four baseline designs differing in their propulsion systems (jet/turboprop) and the fuel they use ...
Seeckt, Kolja
core   +1 more source

Classification of tree species and standing dead trees in Boreal forests using UAV‐based RGB, multispectral, and LiDAR point clouds

Remote Sensing in Ecology and Conservation, EarlyView.
We evaluated single‐ and multi‐sensor UAV approaches for classifying tree species and standing dead trees in boreal forests, focusing on key biodiversity indicators such as European aspen. Using spectral and structural features extracted from RGB, multispectral (MSP), and LiDAR point clouds for 1,205 field‐measured trees, we compared classification ...
Anton Kuzmin, Lauri Korhonen, Topi Tanhuanpää, Mikko Kukkonen, Matti Maltamo, Timo Kumpula   +5 more
wiley   +1 more source

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

Coğrafya 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

International 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, Hans-Joachim K. Ruff-Stahl   +1 more
doaj   +1 more source

Preliminary user centred evaluation of regional aircraft cabin interiors in virtual reality. [PDF]

Sci Rep, 2021
De Crescenzio F, Bagassi S, Starita F.
europepmc   +1 more source