Results 31 to 40 of about 247,344 (269)

Refined GEDI Level-2A Database Construction: Focused on Gyeonggi Province, Republic of Korea [PDF]

Geo Data
The Global Ecosystem Dynamics Investigation (GEDI), a full-waveform light detection and ranging system, translated the energy into a continuous waveform and recorded the signals chronologically for enabling geometric analysis of the vertical structure of
Kyeong-Hun Cho, Seung-Kuk Lee
doaj   +1 more source

Computing the set of Epsilon-efficient solutions in multiobjective space mission design [PDF]

, 2011
In this work, we consider multiobjective space mission design problems. We will start from the need, from a practical point of view, to consider in addition to the (Pareto) optimal solutions also nearly optimal ones.
Carlos A. Coello Coello, Coello Coello C. A., Deb K., Deb K., Goldberg D. E., Izzo D., Massimiliano Vasile, Oliver Schutze, Pareto V., Petropoulos Longuski A. E., Schütze O., Vasile M.   +11 more
core   +1 more source

Observational Needs for Improving Ocean and Coupled Reanalysis, S2S Prediction, and Decadal Prediction

Frontiers in Marine Science, 2019
Developments in observing system technologies and ocean data assimilation (DA) are symbiotic. New observation types lead to new DA methods and new DA methods, such as coupled DA, can change the value of existing observations or indicate where new ...
Stephen G. Penny, Santha Akella, Magdalena A. Balmaseda, Philip Browne, James A. Carton, Matthieu Chevallier, Francois Counillon, Catia Domingues, Sergey Frolov, Patrick Heimbach, Patrick Hogan, Ibrahim Hoteit, Doroteaciro Iovino, Patrick Laloyaux, Matthew J. Martin, Simona Masina, Andrew M. Moore, Patricia de Rosnay, Dinand Schepers, Bernadette M. Sloyan, Andrea Storto, Aneesh Subramanian, SungHyun Nam, Frederic Vitart, Chunxue Yang, Yosuke Fujii, Hao Zuo, Terry O’Kane, Paul Sandery, Thomas Moore, Christopher C. Chapman   +30 more
doaj   +1 more source

Simulation of wind turbine wake interaction using the vorticity transport model [PDF]

, 2010
The aerodynamic interactions that can occur within a wind farm can result in the constituent turbines generating a lower power output than would be possible if each of the turbines were operated in isolation.
Ahlin, Brown, Brown, Builtjes, Crespo, Fletcher, Green, Kenyon, Lissaman, Milborrow, Newman, Sforza, Toro, Troldborg, Vermeer, Voutsinas   +15 more
core   +1 more source

Power Contingency/Margin Methodology and Operational Envelope Analysis for PlanarSats

Aerospace
This paper presents a power-centric systems-engineering approach for PlanarSats and for atto-, and femto-class spacecraft where surface-limited power dominates design.
Mehmet Şevket Uludağ, Alim Rüstem Aslan   +1 more
doaj   +1 more source

Innovating Aircraft Repair Processes: The Role of Digitalization in Sustainability

Advanced Engineering Materials, EarlyView.
This research explores how digitalization—by storing detailed non‐destructive testing data in structured DICONDE databases and creating a standard data model of the component—innovates aviation maintenance and repair processes. Coupled with a developed state‐based simulation model, it enables data‐driven, sustainable repair strategies that reduce waste,
Johanna Aigner, Geo Jacob, Florian Raddatz, Gerko Wende   +3 more
wiley   +1 more source

Drag Reduction by Laminar Flow Control

Energies, 2018
The Energy System Transition in Aviation research project of the Aeronautics Research Center Niedersachsen (NFL) searches for potentially game-changing technologies to reduce the carbon footprint of aviation by promoting and enabling new propulsion and ...
Nils Beck, Tim Landa, Arne Seitz, Loek Boermans, Yaolong Liu, Rolf Radespiel   +5 more
doaj   +1 more source

Comparative analysis of alternative fuels in detonation combustion [PDF]

, 2016
Detonation combustion prominently exhibits high thermodynamic efficiency which leads to better performance. As compared to the conventionally used isobaric heat addition in a Brayton cycle combustor, detonation uses a novel isochoric Humphrey cycle which
Azami, M. H., Savill, Mark A.
core   +1 more source

A Workflow to Accelerate Microstructure‐Sensitive Fatigue Life Predictions

Advanced Engineering Materials, EarlyView.
This study introduces a workflow to accelerate predictions of microstructure‐sensitive fatigue life. Results from frameworks with varying levels of simplification are benchmarked against published reference results. The analysis reveals a trade‐off between accuracy and model complexity, offering researchers a practical guide for selecting the optimal ...
Luca Loiodice, Krzysztof S. Stopka, Michael D. Sangid   +2 more
wiley   +1 more source

Accidents and injuries related to paragliding on mount Babadağ, Turkey: A cross-sectional study

Turkish Journal of Emergency Medicine, 2023
OBJECTIVES: In light of the growing popularity of paragliding, this cross-sectional study aimed to investigate the epidemiology of paragliding accidents, providing insights into the types and severity of injuries sustained as well as the body regions ...
Ömer Faruk Karakoyun, Yalcin Golcuk
doaj   +1 more source