Results 51 to 60 of about 228,330 (246)

An Analysis on the Utilization of STAR (Standard Terminal Arrival Route) and CDO (Continuous Descent Operation) Flight Ratio in the Domestic Airport

Journal of the Korean Society for Aviation and Aeronautics, 2022
Choon-il Lee, Juhwan Lee, Janghoon Park, H. Baik   +3 more
semanticscholar   +1 more source

Pattern-Based Genetic Algorithm for Airborne Conflict Resolution [PDF]

NASA has developed the Autonomous Operations Planner (AOP) airborne decision support tool to explore advanced air traffic control concepts that include delegating separation authority to aircraft.
Karr, David A., Vivona, Robert A.
core   +1 more source

A Study on Effect Analysis of Trajectory-Based Arrival Management using Continuous Descent Operations

Journal of the Korean Society for Aviation and Aeronautics, 2022
Eunmi Oh, Dae-Hoon Jeon
semanticscholar   +1 more source

Computer program for parameter optimization [PDF]

, 1968
Flexible, large scale digital computer program was designed for the solution of a wide range of multivariable parameter optimization problems.
Glatt, C. R., Hague, D. S.
core   +1 more source

Composite impact vector control based on Apollo descent guidance

Chinese Journal of Aeronautics, 2021
K. S. Erer, Raziye Tekin, M. Özgören
semanticscholar   +1 more source

Effect of Ramped Oxygen Flow During Magnetron Sputtering on the Structural, Optical, and Photoelectrochemical Properties of WO3‐x Thin Films

Advanced Physics Research, EarlyView.
A compositionally graded WO3‐x thin film was engineered through a controlled linear increase of oxygen flow during reactive magnetron sputtering. This deposition strategy yields a gradual transition from an oxygen‐deficient, conductive bottom layer to a more stoichiometric and crystalline surface layer, forming an intrinsic gradient homojunction.
Helen Caroline de Souza Barros, David Alexandro Graves, Benedito Donizeti Botan‐Neto, Rafael da Silva Leal, Marcilene Cristina Gomes, Douglas Marcel Gonçalves Leite, Elizabete Yoshie Kawachi, Rodrigo Sávio Pessoa, Nicolas Martin, Argemiro Soares da Silva Sobrinho, André Luis de Jesus Pereira   +10 more
wiley   +1 more source

Design issues for lunar in situ aluminum/oxygen propellant rocket engines [PDF]

Design issues for lunar ascent and lunar descent rocket engines fueled by aluminum/oxygen propellant produced in situ at the lunar surface were evaluated.
Meyer, Michael L.
core   +1 more source

Confirmation of a Non‐Transiting Planet in the Habitable Zone of the Nearby M Dwarf L 98‐59

Astronomische Nachrichten, EarlyView.
ABSTRACT Only 40 exoplanetary systems with five or more planets are currently known. These systems are crucial for our understanding of planet formation and planet‐planet interaction. The M dwarf L 98‐59 has previously been found to show evidence of five planets, three of which are transiting.
Paul I. Schwarz, Stefan Dreizler, René Heller   +2 more
wiley   +1 more source

Basic Studies in Space Vehicle Attitude Control Tenth Semiannual Status Report, Period Ending Jun. 1966 [PDF]

Nonlinear optimal control of planet-pointing space vehicle, basic methods for attitude control, and satellite orbit ...
Cannon, R. H., Jr., Flugge-Lotz, I.
core   +1 more source

Searching for Rotational X‐Ray Modulation on TIC 277539431

Astronomische Nachrichten, EarlyView.
ABSTRACT TIC 277539431, a fast rotating M7 dwarf, was detected to host the highest latitude flare to date at 81°$$ {81}^{{}^{\circ}} $$. Magnetic activity like stellar flares occurring at high latitude indicate occurrence of coronal loops at these latitudes on fully‐convective M dwarfs. In contrast, sunspots usually occur below 30°$$ {30}^{{}^{\circ}} $
Desmond Dsouza, Katja Poppenhäger, Ekaterina Ilin   +2 more
wiley   +1 more source