Zobrazeno 1 - 10
of 329
pro vyhledávání: '"D Pavel"'
Autor:
Marilena D. PAVEL
Publikováno v:
INCAS Bulletin, Vol 16, Iss 2, Pp 85-97 (2024)
Advanced nonlinear controllers are a desirable solution to rotorcraft flight control as they can solve the system high nonlinear dynamic behavior. However, conventional nonlinear controllers such as Nonlinear Dynamic Inversion (NDI) controller heavil
Externí odkaz:
https://doaj.org/article/13f5f1a80e634c5d8b43d0774370bbc2
Autor:
Francesco Mazzeo, Marilena D. Pavel, Daniele Fattizzo, Emanuele L. de Angelis, Fabrizio Giulietti
Publikováno v:
Aerospace, Vol 11, Iss 11, p 927 (2024)
In the present paper, a flight dynamics model is adopted to represent the trim and stability characteristics of a side-by-side helicopter in hovering conditions. This paper develops a numerical representation of the rotorcraft behavior and proposes a
Externí odkaz:
https://doaj.org/article/9d9e5e58eb4248a680038be728eece12
Autor:
Rodica Zăvoianu, Mădălina Tudorache, Vasile I. Parvulescu, Bogdan Cojocaru, Octavian D. Pavel
Publikováno v:
Molecules, Vol 27, Iss 23, p 8391 (2022)
A rapid, cheap and feasible new approach was used to synthesize the Mg0.375Fe0.375Al0.25-LDH in the presence of tetramethylammonium hydroxide (TMAH), as a nontraditional hydrolysis agent, applying both mechano-chemical (MC) and co-precipitation metho
Externí odkaz:
https://doaj.org/article/379c10a620334d41847a22c29f4a7588
Publikováno v:
Informatika, Vol 16, Iss 2, Pp 7-17 (2019)
The methods of geometric informative features selection of nuclei on fluorescent images of cancer cells are considered. During the survey, a review of existing geometric features was carried out, including both the signs of rotation resisted shape an
Externí odkaz:
https://doaj.org/article/0a66b0d95b5648178dbf542e155de389
Autor:
Marilena D. PAVEL, Achim IONITA
Publikováno v:
INCAS Bulletin, Vol 10, Iss 3, Pp 139-156 (2018)
The main objective of this paper is to give a basic understanding of the mechanisms through which pilot cyclic inputs in lateral cyclic interacts with high-order rotor dynamics destabilizing the helicopter roll motion. The paper will use a “Newtoni
Externí odkaz:
https://doaj.org/article/4c10933468bb41ec833ade5b3bc148c0
Publikováno v:
Journal of the American Helicopter Society. 67:129-141
The power required to hover a helicopter is fundamental to any new or modified performance flight-testing effort. The conventional method of relating two nondimensional variables (coefficients of power and weight) is overly simplified and neglects co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::89a83c9cba09b89bce08649142033252
https://doi.org/10.4050/jahs.67.032010
https://doi.org/10.4050/jahs.67.032010
Autor:
Giuseppe Quaranta, Paolo Francesco Scaramuzzino, Max Mulder, Olaf Stroosma, Daan M. Pool, Marilena D. Pavel
Publikováno v:
Journal of Aircraft: devoted to aeronautical science and technology, 59(1)
This paper analyzes the effects of the helicopter dynamics on pilots’ learning process and transfer of learned skills during autorotation training. A quasi-transfer-of-training experiment was performed with 14 experienced helicopter pilots in a mov
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::23a5270808e35899dd07c14b70808ba9
https://doi.org/10.2514/1.c036217
https://doi.org/10.2514/1.c036217
Publikováno v:
Crystals, Vol 10, Iss 4, p 244 (2020)
Curcumin (CR) is a natural antioxidant compound extracted from Curcuma longa (turmeric). Until now, researches related to the incorporation of CR into layered double hydroxides (LDHs) were focused only on hybrid structures based on a MgxAl-LDH matrix
Externí odkaz:
https://doaj.org/article/b0f71fe453f0489ba3245a3fe593ffa9
Autor:
Sabina Gabriela Ion, Octavian D. Pavel, Nicolae Guzo, Madalina Tudorache, Simona M. Coman, Vasile I. Parvulescu, Bogdan Cojocaru, Elisabeth E. Jacobsen
Considerable efforts have been made in recent years to identify an optimal treatment method for the removal of antibiotics from wastewaters. A series of supramolecular organic-inorganic magnetic composites containing Zn-modified MgAl LDHs and Cu-phth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a9a2c6ad3ac6d2ae681bf11565eca35
https://doi.org/10.20944/preprints202208.0289.v1
https://doi.org/10.20944/preprints202208.0289.v1
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